diff options
Diffstat (limited to 'nis')
35 files changed, 2545 insertions, 1770 deletions
diff --git a/nis/Banner b/nis/Banner index b5aedc2b97..77ab77e8d2 100644 --- a/nis/Banner +++ b/nis/Banner @@ -1 +1 @@ -NIS(YP)/NIS+ NSS modules 0.11 by Thorsten Kukuk +NIS(YP)/NIS+ NSS modules 0.12 by Thorsten Kukuk diff --git a/nis/Makefile b/nis/Makefile index 23a71446bb..c10c175e7d 100644 --- a/nis/Makefile +++ b/nis/Makefile @@ -17,12 +17,13 @@ # Boston, MA 02111-1307, USA. # -# Makefile for NIS part. +# Makefile for NIS/NIS+ part. # subdir := nis headers := $(wildcard rpcsvc/*.[hx]) -distribute := nss-nis.h nss-nisplus.h nis_intern.h Banner +distribute := nss-nis.h nss-nisplus.h nis_intern.h Banner \ + nisplus-parser.h # These are the databases available for the nis (and perhaps later nisplus) # service. This must be a superset of the services in nss. @@ -44,15 +45,15 @@ vpath %.c $(subdir-dirs) libnsl-routines = yp_xdr ypclnt ypupdate_xdr \ nis_subr nis_local_names nis_free nis_file \ nis_print nis_error nis_call nis_lookup nis_clone\ - nis_table nis_xdr nis_intern nis_server nis_ping\ + nis_cache nis_table nis_xdr nis_server nis_ping\ nis_checkpoint nis_mkdir nis_rmdir nis_getservlist\ - nis_verifygroup nis_ismember nis_addmember \ + nis_verifygroup nis_ismember nis_addmember nis_util\ nis_removemember nis_creategroup nis_destroygroup\ nis_print_group_entry nis_domain_of nis_domain_of_r\ - nis_modify nis_remove nis_add nis_defaults + nis_modify nis_remove nis_add nis_defaults lckcache libnsl-map = libnsl.map -libnss_compat-routines := $(addprefix compat-,grp pwd spwd) +libnss_compat-routines := $(addprefix compat-,grp pwd spwd) nisplus-parser libnss_compat-inhibit-o = $(filter-out .so,$(object-suffixes)) libnss_compat-map := libnss_compat.map @@ -60,16 +61,14 @@ libnss_nis-routines := $(addprefix nis-,$(databases)) libnss_nis-inhibit-o = $(filter-out .so,$(object-suffixes)) libnss_nis-map := libnss_nis.map -libnss_nisplus-routines := $(addprefix nisplus-,$(databases)) +libnss_nisplus-routines := $(addprefix nisplus-,$(databases)) nisplus-parser libnss_nisplus-inhibit-o = $(filter-out .so,$(object-suffixes)) libnss_nisplus-map := libnss_nisplus.map include ../Rules -$(objpfx)libnss_compat.so: $(objpfx)libnsl.so$(libnsl.so-version) \ - $(common-objpfx)nss/libnss_files.so \ - $(common-objpfx)nis/libnss_nisplus.so +$(objpfx)libnss_compat.so: $(objpfx)libnsl.so$(libnsl.so-version) $(objpfx)libnss_nis.so: $(objpfx)libnsl.so$(libnsl.so-version) \ $(common-objpfx)nss/libnss_files.so $(objpfx)libnss_nisplus.so: $(objpfx)libnsl.so$(libnsl.so-version) diff --git a/nis/TODO b/nis/TODO index f6d695956a..0fe695d78b 100644 --- a/nis/TODO +++ b/nis/TODO @@ -2,8 +2,6 @@ * nis_addmember: Where checks for duplicate group members ? nisgrpadm or nis_addmember ? - * nss_nisplus: When using parser form nss_files, rewrite parser - * nis_table.c: nis_list(): Missing flags: FOLLOW_PATH, ALL_RESULTS callback: Don't simulate it, use server callback thread diff --git a/nis/lckcache.c b/nis/lckcache.c new file mode 100644 index 0000000000..ead577372e --- /dev/null +++ b/nis/lckcache.c @@ -0,0 +1,181 @@ +/* Handle locking of NIS+ cache file. + Copyright (C) 1996 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <fcntl.h> +#include <bits/libc-lock.h> +#include <shadow.h> +#include <signal.h> +#include <string.h> +#include <unistd.h> +#include <sys/file.h> +#include <rpcsvc/nis.h> +#include <rpcsvc/nislib.h> +#include <rpcsvc/nis_cache.h> + +/* How long to wait for getting the lock before returning with an + error. */ +#define TIMEOUT 15 /* sec */ + + +/* File descriptor for lock file. */ +static int lock_fd = -1; + +/* Prevent problems in multithreaded program by using mutex. */ +__libc_lock_define_initialized (static, lock) + + +/* Prototypes for local functions. */ +static void noop_handler __P ((int __sig)); + + +/* We cannot simply return in error cases. We have to close the file + and perhaps restore the signal handler. */ +#define RETURN_CLOSE_FD(code) \ + do { \ + if ((code) < 0 && lock_fd >= 0) \ + { \ + close (lock_fd); \ + lock_fd = -1; \ + } \ + __libc_lock_unlock (lock); \ + return (code); \ + } while (0) + +#define RETURN_RESTORE_HANDLER(code) \ + do { \ + /* Restore old action handler for alarm. We don't need to know \ + about the current one. */ \ + sigaction (SIGALRM, &saved_act, NULL); \ + RETURN_CLOSE_FD (code); \ + } while (0) + +#define RETURN_CLEAR_ALARM(code) \ + do { \ + /* Clear alarm. */ \ + alarm (0); \ + /* Restore old set of handled signals. We don't need to know \ + about the current one.*/ \ + sigprocmask (SIG_SETMASK, &saved_set, NULL); \ + RETURN_RESTORE_HANDLER (code); \ + } while (0) + + +int +__nis_lock_cache (void) +{ + int flags; + sigset_t saved_set; /* Saved set of caught signals. */ + struct sigaction saved_act; /* Saved signal action. */ + sigset_t new_set; /* New set of caught signals. */ + struct sigaction new_act; /* New signal action. */ + struct flock fl; /* Information struct for locking. */ + int result; + + if (lock_fd != -1) + /* Still locked by own process. */ + return -1; + + /* Prevent problems caused by multiple threads. */ + __libc_lock_lock (lock); + + lock_fd = open (CACHELOCK, O_RDONLY|O_CREAT, 0666); + if (lock_fd == -1) + /* Cannot create lock file. */ + RETURN_CLOSE_FD (-1); + + /* Make sure file gets correctly closed when process finished. */ + flags = fcntl (lock_fd, F_GETFD, 0); + if (flags == -1) + /* Cannot get file flags. */ + RETURN_CLOSE_FD (-1); + flags |= FD_CLOEXEC; /* Close on exit. */ + if (fcntl (lock_fd, F_SETFD, flags) < 0) + /* Cannot set new flags. */ + RETURN_CLOSE_FD (-1); + + /* Now we have to get exclusive write access. Since multiple + process could try this we won't stop when it first fails. + Instead we set a timeout for the system call. Once the timer + expires it is likely that there are some problems which cannot be + resolved by waiting. + + It is important that we don't change the signal state. We must + restore the old signal behaviour. */ + memset (&new_act, '\0', sizeof (struct sigaction)); + new_act.sa_handler = noop_handler; + sigfillset (&new_act.sa_mask); + new_act.sa_flags = 0ul; + + /* Install new action handler for alarm and save old. */ + if (sigaction (SIGALRM, &new_act, &saved_act) < 0) + /* Cannot install signal handler. */ + RETURN_CLOSE_FD (-1); + + /* Now make sure the alarm signal is not blocked. */ + sigemptyset (&new_set); + sigaddset (&new_set, SIGALRM); + if (sigprocmask (SIG_UNBLOCK, &new_set, &saved_set) < 0) + RETURN_RESTORE_HANDLER (-1); + + /* Start timer. If we cannot get the lock in the specified time we + get a signal. */ + alarm (TIMEOUT); + + /* Try to get the lock. */ + memset (&fl, '\0', sizeof (struct flock)); + fl.l_type = F_RDLCK; + fl.l_whence = SEEK_SET; + result = fcntl (lock_fd, F_SETLK, &fl); + + RETURN_CLEAR_ALARM (result); +} + + +int +__nis_unlock_cache () +{ + int result; + + if (lock_fd == -1) + /* There is no lock set. */ + result = -1; + else + { + /* Prevent problems caused by multiple threads. */ + __libc_lock_lock (lock); + + result = close (lock_fd); + + /* Mark descriptor as unused. */ + lock_fd = -1; + + /* Clear mutex. */ + __libc_lock_unlock (lock); + } + + return result; +} + + +static void +noop_handler (sig) + int sig; +{ + /* We simply return which makes the `fcntl' call return with an error. */ +} diff --git a/nis/libnsl.map b/nis/libnsl.map index 36bb857093..cf22d27d2f 100644 --- a/nis/libnsl.map +++ b/nis/libnsl.map @@ -1,7 +1,10 @@ GLIBC_2.0 { global: __nis_default_access; __nis_default_group; __nis_default_owner; - __nis_default_ttl; __yp_check; nis_add; + __nis_default_ttl; __nis_finddirectory; __nis_lock_cache; + __nis_unlock_cache; __nis_hash; + + nis_add; nis_add_entry; nis_addmember; nis_checkpoint; nis_clone_directory; nis_clone_entry; nis_clone_group; nis_clone_link; nis_clone_nis_attr; nis_clone_objdata; @@ -51,6 +54,7 @@ GLIBC_2.0 { xdr_ypresp_xfr; xdr_ypstat; xdr_ypupdate_args; xdr_ypxfrstat; xdr_zotypes; + __yp_check; yp_all; yp_bind; yp_first; yp_get_default_domain; yp_maplist; yp_master; yp_match; yp_next; yp_order; diff --git a/nis/nis_cache.c b/nis/nis_cache.c new file mode 100644 index 0000000000..8e1d583003 --- /dev/null +++ b/nis/nis_cache.c @@ -0,0 +1,44 @@ +/* Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <fcntl.h> +#include <unistd.h> +#include <syslog.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <rpcsvc/nis.h> +#include <rpcsvc/nislib.h> +#include <rpcsvc/nis_cache.h> +#include <bits/libc-lock.h> + +#include "nis_intern.h" + +/* XXX Only dummy functions in the moment. The real implementation + will follow, if we have a working nis_cachemgr */ +directory_obj * +__cache_search (const_nis_name name) +{ + return NULL; +} + +nis_error +__cache_add (fd_result *fd) +{ + return NIS_FAIL; +} diff --git a/nis/nis_call.c b/nis/nis_call.c index 08a20acd73..f25b8017a5 100644 --- a/nis/nis_call.c +++ b/nis/nis_call.c @@ -17,6 +17,7 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +#include <fcntl.h> #include <string.h> #include <rpc/rpc.h> #include <rpc/auth.h> @@ -26,8 +27,30 @@ #include <arpa/inet.h> #include "nis_intern.h" -static struct timeval TIMEOUT = {25, 0}; -static int const MAXTRIES = 3; +static struct timeval TIMEOUT = {10, 0}; + +struct dir_binding +{ + CLIENT *clnt; /* RPC CLIENT handle */ + nis_server *server_val; /* List of servers */ + u_int server_len; /* # of servers */ + u_int server_used; /* Which server we are bind in the moment ? */ + u_int trys; /* How many server have we tried ? */ + bool_t master_only; /* Is only binded to the master */ + bool_t use_auth; /* Do we use AUTH ? */ + bool_t use_udp; /* Do we use UDP ? */ + time_t create; /* Binding creation time */ + struct sockaddr_in addr; /* Server's IP address */ + int socket; /* Server's local socket */ + unsigned short port; /* Local port */ +}; +typedef struct dir_binding dir_binding; + +static inline u_int +__nis_ping (const nis_server *serv, u_int serv_len) +{ + return 0; +} static unsigned long inetstr2int (const char *str) @@ -53,110 +76,217 @@ inetstr2int (const char *str) return inet_addr (buffer); } -static CLIENT * -__nis_dobind (const nis_server *server, u_long flags) +static void +__bind_destroy (dir_binding *bind) { - struct sockaddr_in clnt_saddr; - int clnt_sock; - size_t i; - CLIENT *client = NULL; - - memset (&clnt_saddr, '\0', sizeof clnt_saddr); - clnt_saddr.sin_family = AF_INET; - for (i = 0; i < server->ep.ep_len; i++) + if (bind->clnt != NULL) { - if (strcmp (server->ep.ep_val[i].family, "loopback") == 0) + if (bind->use_auth) + auth_destroy (bind->clnt->cl_auth); + clnt_destroy (bind->clnt); + } + free (bind->server_val); + free (bind); +} + +static nis_error +__bind_next (dir_binding *bind) +{ + if (bind->trys >= bind->server_len) + return NIS_FAIL; + + bind->server_used++; + if (bind->server_used >= bind->server_len) + bind->server_used = 0; + + if (bind->clnt != NULL) + { + if (bind->use_auth) + auth_destroy (bind->clnt->cl_auth); + clnt_destroy (bind->clnt); + bind->clnt = NULL; + } + + return NIS_SUCCESS; +} + +static nis_error +__bind_connect (dir_binding *dbp) +{ + struct sockaddr_in check; + nis_server *serv; + int checklen; + u_int i; + + if (dbp == NULL) + return NIS_FAIL; + + serv = &dbp->server_val[dbp->server_used]; + + memset (&dbp->addr, '\0', sizeof (dbp->addr)); + dbp->addr.sin_family = AF_INET; + for (i = 0; i < serv->ep.ep_len; ++i) + { + if (strcmp (serv->ep.ep_val[i].family, "inet") == 0) { - if (server->ep.ep_val[i].uaddr[i] == '-') - clnt_saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK); + if (dbp->use_udp) + { + if (strcmp (serv->ep.ep_val[i].proto, "udp") == 0) + dbp->addr.sin_addr.s_addr = + inetstr2int (serv->ep.ep_val[i].uaddr); + else + continue; + } else - if (strcmp (server->ep.ep_val[i].proto, "udp") == 0) - { - if ((flags & USE_DGRAM) == USE_DGRAM) - clnt_saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK); - else - continue; - } - else - if (strcmp (server->ep.ep_val[i].proto, "tcp") == 0) - { - if ((flags & USE_DGRAM) == USE_DGRAM) - continue; - else - clnt_saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK); - } + if (strcmp (serv->ep.ep_val[i].proto, "tcp") == 0) + dbp->addr.sin_addr.s_addr = + inetstr2int (serv->ep.ep_val[i].uaddr); } else - if (strcmp (server->ep.ep_val[i].family, "inet") == 0) - { - if (server->ep.ep_val[i].uaddr[i] == '-') - clnt_saddr.sin_addr.s_addr = - inetstr2int (server->ep.ep_val[i].uaddr); - else - if (strcmp (server->ep.ep_val[i].proto, "udp") == 0) - { - if ((flags & USE_DGRAM) == USE_DGRAM) - clnt_saddr.sin_addr.s_addr = - inetstr2int (server->ep.ep_val[i].uaddr); - else - continue; - } - else - if (strcmp (server->ep.ep_val[i].proto, "tcp") == 0) - { - if ((flags & USE_DGRAM) == USE_DGRAM) - continue; - else - clnt_saddr.sin_addr.s_addr = - inetstr2int (server->ep.ep_val[i].uaddr); - } - } - else - continue; - - clnt_sock = RPC_ANYSOCK; - if ((flags & USE_DGRAM) == USE_DGRAM) - client = clntudp_create (&clnt_saddr, NIS_PROG, NIS_VERSION, - TIMEOUT, &clnt_sock); - else - client = clnttcp_create (&clnt_saddr, NIS_PROG, NIS_VERSION, - &clnt_sock, 0, 0); - - if (client == NULL) continue; - if (clnt_call (client, 0, (xdrproc_t) xdr_void, NULL, - (xdrproc_t) xdr_void, NULL, TIMEOUT) != RPC_SUCCESS) + } + if (dbp->addr.sin_addr.s_addr == 0) + return NIS_FAIL; + + dbp->socket = RPC_ANYSOCK; + if (dbp->use_udp) + dbp->clnt = clntudp_create (&dbp->addr, NIS_PROG, NIS_VERSION, + TIMEOUT, &dbp->socket); + else + dbp->clnt = clnttcp_create (&dbp->addr, NIS_PROG, NIS_VERSION, + &dbp->socket, 0, 0); + + if (dbp->clnt == NULL) + return NIS_RPCERROR; + + clnt_control (dbp->clnt, CLSET_TIMEOUT, (caddr_t)&TIMEOUT); + /* If the program exists, close the socket */ + if (fcntl (dbp->socket, F_SETFD, 1) == -1) + perror (_("fcntl: F_SETFD")); + + if (dbp->use_auth) + { +#if defined(HAVE_SECURE_RPC) + if (serv->key_type == NIS_PK_DH) { - clnt_destroy (client); - continue; + char netname[MAXNETNAMELEN+1]; + char *p; + + p = stpcpy (netname, "unix."); + strncpy (p, serv->name,MAXNETNAMELEN-5); + netname[MAXNETNAMELEN] = '\0'; + p = strchr (netname, '.'); + *p = '@'; + dbp->clnt->cl_auth = + authdes_pk_create (netname, &serv->pkey, 300, NULL, NULL); + if (!dbp->clnt->cl_auth) + dbp->clnt->cl_auth = authunix_create_default (); } + else +#endif + dbp->clnt->cl_auth = authunix_create_default (); + dbp->use_auth = TRUE; + } + + /* Get port for sanity checks later */ + checklen = sizeof (struct sockaddr_in); + memset (&check, 0, checklen); + if (dbp->use_udp) + bind (dbp->socket, (struct sockaddr *)&check, checklen); + check.sin_family = AF_INET; + if (!getsockname (dbp->socket, (struct sockaddr *)&check, &checklen)) + dbp->port = check.sin_port; + + dbp->create = time (NULL); + + return NIS_SUCCESS; +} - if ((flags & NO_AUTHINFO) != NO_AUTHINFO) +static dir_binding * +__bind_create (const nis_server *serv_val, u_int serv_len, u_long flags) +{ + dir_binding *dbp; + u_int i; + + dbp = calloc (1, sizeof (dir_binding)); + if (dbp == NULL) + return NULL; + + dbp->server_len = serv_len; + dbp->server_val = calloc (1, sizeof (nis_server) * serv_len); + if (dbp->server_val == NULL) + { + free (dbp); + return NULL; + } + + for (i = 0; i < serv_len; ++i) + { + if (serv_val[i].name != NULL) + dbp->server_val[i].name = strdup (serv_val[i].name); + + dbp->server_val[i].ep.ep_len = serv_val[i].ep.ep_len; + if (dbp->server_val[i].ep.ep_len > 0) { -#if defined(HAVE_SECURE_RPC) - if (server->key_type == NIS_PK_DH && getenv ("NO_SECURE_RPC") == NULL) + unsigned long j; + + dbp->server_val[i].ep.ep_val = + malloc (serv_val[i].ep.ep_len * sizeof (endpoint)); + for (j = 0; j < dbp->server_val[i].ep.ep_len; ++j) { - char netname[MAXNETNAMELEN+1]; - char *p; - - p = stpcpy (netname, "unix."); - strncpy (p, server->name,MAXNETNAMELEN-5); - netname[MAXNETNAMELEN] = '\0'; - p = strchr (netname, '.'); - *p = '@'; - client->cl_auth = - authdes_pk_create (netname, &server->pkey, 300, NULL, NULL); - if (!client->cl_auth) - client->cl_auth = authunix_create_default (); + if (serv_val[i].ep.ep_val[j].uaddr) + dbp->server_val[i].ep.ep_val[j].uaddr = + strdup (serv_val[i].ep.ep_val[j].uaddr); + else + dbp->server_val[i].ep.ep_val[j].uaddr = NULL; + if (serv_val[i].ep.ep_val[j].family) + dbp->server_val[i].ep.ep_val[j].family = + strdup (serv_val[i].ep.ep_val[j].family); + else + dbp->server_val[i].ep.ep_val[j].family = NULL; + if (serv_val[i].ep.ep_val[j].proto) + dbp->server_val[i].ep.ep_val[j].proto = + strdup (serv_val[i].ep.ep_val[j].proto); + else + dbp->server_val[i].ep.ep_val[j].proto = NULL; } - else -#endif - client->cl_auth = authunix_create_default (); } - return client; + else + dbp->server_val[i].ep.ep_val = NULL; + dbp->server_val[i].key_type = serv_val[i].key_type; + dbp->server_val[i].pkey.n_len = serv_val[i].pkey.n_len; + if (serv_val[i].pkey.n_len > 0) + { + dbp->server_val[i].pkey.n_bytes = + malloc (serv_val[i].pkey.n_len); + if (dbp->server_val[i].pkey.n_bytes == NULL) + return NULL; + memcpy (dbp->server_val[i].pkey.n_bytes, serv_val[i].pkey.n_bytes, + serv_val[i].pkey.n_len); + } + else + dbp->server_val[i].pkey.n_bytes = NULL; } + + dbp->server_used = __nis_ping (dbp->server_val, dbp->server_len); + if (flags & USE_DGRAM) + dbp->use_udp = TRUE; + else + dbp->use_udp = FALSE; - return NULL; + if (flags & NO_AUTHINFO) + dbp->use_auth = FALSE; + else + dbp->use_auth = TRUE; + + if (flags & MASTER_ONLY) + dbp->master_only = TRUE; + else + dbp->master_only = FALSE; + + dbp->trys = 1; + + return dbp; } nis_error @@ -164,89 +294,84 @@ __do_niscall2 (const nis_server *server, u_int server_len, u_long prog, xdrproc_t xargs, caddr_t req, xdrproc_t xres, caddr_t resp, u_long flags) { - CLIENT *clnt; - int try, result; - - try = 0; - result = NIS_NAMEUNREACHABLE; - - if (((flags & MASTER_ONLY) == MASTER_ONLY) && server_len > 1) - server_len = 1; /* The first entry is the master */ - - while (try < MAXTRIES && result != RPC_SUCCESS) + enum clnt_stat result; + nis_error retcode; + dir_binding *dbp; + + if (flags & MASTER_ONLY) + server_len = 1; + + dbp = __bind_create (server, server_len, flags); + while (__bind_connect (dbp) != NIS_SUCCESS) { - unsigned int i; - - if ((flags & HARD_LOOKUP) == 0) - ++try; - - for (i = 0; i < server_len; i++) + if (__bind_next (dbp) != NIS_SUCCESS) { - if ((clnt = __nis_dobind (&server[i], flags)) == NULL) - continue; - - result = clnt_call (clnt, prog, xargs, req, xres, resp, TIMEOUT); - - if (result != RPC_SUCCESS) - { - clnt_perror (clnt, "do_niscall: clnt_call"); - clnt_destroy (clnt); - result = NIS_RPCERROR; - } - else - clnt_destroy (clnt); + __bind_destroy (dbp); + return NIS_NAMEUNREACHABLE; } } - return result; -} - -static directory_obj * -dir_lookup (const_nis_name name, nis_server *serv, u_long flags) -{ - CLIENT *clnt; - int try, result; - nis_result *res; - struct ns_request req; - directory_obj *dir; - - res = calloc (1, sizeof (nis_result)); - req.ns_name = (char *)name; - req.ns_object.ns_object_len = 0; - req.ns_object.ns_object_val = NULL; - try = 0; - result = NIS_NAMEUNREACHABLE; - - while (try < MAXTRIES && result != RPC_SUCCESS) + do { - if ((clnt = __nis_dobind (serv, flags)) == NULL) - continue; - - result = clnt_call (clnt, NIS_LOOKUP, (xdrproc_t) xdr_ns_request, - (caddr_t) &req, (xdrproc_t) xdr_nis_result, - (caddr_t) res, TIMEOUT); - + again: + result = clnt_call (dbp->clnt, prog, xargs, req, xres, resp, TIMEOUT); + if (result != RPC_SUCCESS) { - clnt_perror (clnt, "do_niscall: clnt_call"); - clnt_destroy (clnt); - result = NIS_RPCERROR; + clnt_perror (dbp->clnt, "__do_niscall2: clnt_call"); + __bind_destroy (dbp); + retcode = NIS_RPCERROR; } else - clnt_destroy (clnt); + { + switch (prog) + { + case NIS_LOOKUP: + case NIS_ADD: + case NIS_MODIFY: + case NIS_REMOVE: + case NIS_IBLIST: + case NIS_IBADD: + case NIS_IBMODIFY: + case NIS_IBREMOVE: + case NIS_IBFIRST: + case NIS_IBNEXT: + if ((((nis_result *)xres)->status != NIS_SUCCESS) && + (((nis_result *)xres)->status != NIS_S_SUCCESS)) + if (__bind_next (dbp) == NIS_SUCCESS) + goto again; + case NIS_FINDDIRECTORY: + if (((fd_result *)xres)->status != NIS_SUCCESS) + if (__bind_next (dbp) == NIS_SUCCESS) + goto again; + break; +#if 0 + case NIS_STATUS: /* nis_taglist */ + case NIS_SERVSTATE: + break; + case NIS_DUMPLOG: /* log_result */ + case NIS_DUMP: + break; + case NIS_CHECKPOINT: /* cp_result */ + break; +#endif + default: + break; + } + __bind_destroy (dbp); + retcode = NIS_SUCCESS; + } } - if (result != RPC_SUCCESS || res->status != NIS_SUCCESS) - return NULL; - - dir = nis_clone_directory (&res->objects.objects_val->DI_data, NULL); - nis_freeresult (res); - - return dir; + while ((flags & HARD_LOOKUP) && retcode == NIS_RPCERROR); + + return retcode; } static directory_obj * rec_dirsearch (const_nis_name name, directory_obj *dir, u_long flags) { + fd_result *fd_res; + XDR xdrs; char domain [strlen (name) + 3]; nis_domain_of_r (name, domain, sizeof (domain)); @@ -287,8 +412,20 @@ rec_dirsearch (const_nis_name name, directory_obj *dir, u_long flags) /* The root server of our domain is a replica of the parent domain ! (Now I understand why a root server must be a replica of the parent domain) */ - obj = dir_lookup (ndomain, dir->do_servers.do_servers_val, - flags); + fd_res = __nis_finddirectory (dir, ndomain); + if (fd_res->status != NIS_SUCCESS) + { + nis_free_directory (dir); + xdr_free((xdrproc_t)xdr_fd_result, (caddr_t)fd_res); + return NULL; + } + __cache_add (fd_res); + obj = calloc(1, sizeof(directory_obj)); + xdrmem_create(&xdrs, fd_res->dir_data.dir_data_val, + fd_res->dir_data.dir_data_len, XDR_DECODE); + xdr_directory_obj(&xdrs, obj); + xdr_destroy(&xdrs); + xdr_free((xdrproc_t)xdr_fd_result, (caddr_t)fd_res); if (obj != NULL) { /* We have found a NIS+ server serving ndomain, now @@ -303,15 +440,14 @@ rec_dirsearch (const_nis_name name, directory_obj *dir, u_long flags) return NULL; } } - break; + break; case LOWER_NAME: { directory_obj *obj; char leaf [strlen (name) + 3]; char ndomain [strlen (name) + 3]; - u_int i; char *cp; - + do { if (strlen (domain) == 0) @@ -327,21 +463,30 @@ rec_dirsearch (const_nis_name name, directory_obj *dir, u_long flags) cp = strchr (leaf, '\0'); *cp++ = '.'; strcpy (cp, domain); - - for (i = 0; i < dir->do_servers.do_servers_len; ++i) + + fd_res = __nis_finddirectory (dir, leaf); + if (fd_res->status != NIS_SUCCESS) { - obj = dir_lookup (leaf, &dir->do_servers.do_servers_val[i], - flags); - if (obj != NULL) - { - /* We have found a NIS+ server serving ndomain, now - let us search for "name" */ - nis_free_directory (dir); - return rec_dirsearch (name, obj, flags); - } + nis_free_directory (dir); + xdr_free((xdrproc_t)xdr_fd_result, (caddr_t)fd_res); + return NULL; + } + __cache_add (fd_res); + obj = calloc(1, sizeof(directory_obj)); + xdrmem_create(&xdrs, fd_res->dir_data.dir_data_val, + fd_res->dir_data.dir_data_len, XDR_DECODE); + xdr_directory_obj(&xdrs, obj); + xdr_destroy(&xdrs); + xdr_free((xdrproc_t)xdr_fd_result, (caddr_t)fd_res); + if (obj != NULL) + { + /* We have found a NIS+ server serving ndomain, now + let us search for "name" */ + nis_free_directory (dir); + return rec_dirsearch (name, obj, flags); } } - break; + break; case BAD_NAME: nis_free_directory (dir); return NULL; @@ -354,37 +499,44 @@ nis_error __do_niscall (const_nis_name name, u_long prog, xdrproc_t xargs, caddr_t req, xdrproc_t xres, caddr_t resp, u_long flags) { - nis_error result; + nis_error retcode; directory_obj *dir = NULL; - const nis_server *server; + nis_server *server; u_int server_len; + if (name == NULL) + return NIS_BADNAME; - dir = readColdStartFile (); - if (dir == NULL) /* No /var/nis/NIS_COLD_START -> no NIS+ installed */ - return NIS_UNAVAIL; - - if (name != NULL) + if ((flags & NO_CACHE) != NO_CACHE) + dir = __cache_search (name); + + if (dir == NULL) { + dir = readColdStartFile (); + if (dir == NULL) /* No /var/nis/NIS_COLD_START->no NIS+ installed */ + return NIS_UNAVAIL; + dir = rec_dirsearch (name, dir, flags); if (dir == NULL) - { - if (nis_dir_cmp (nis_local_directory(), name) == NOT_SEQUENTIAL) - return NIS_NAMEUNREACHABLE; - else - return NIS_NOTFOUND; - } + return NIS_NOTFOUND; } - server = dir->do_servers.do_servers_val; - server_len = dir->do_servers.do_servers_len; - if (((flags & MASTER_ONLY) == MASTER_ONLY) && server_len > 1) - server_len = 1; /* The first entry is the master */ - - result = __do_niscall2 (server, server_len, prog, xargs, req, xres, - resp, flags); - if (dir != NULL) - nis_free_directory (dir); + if (flags & MASTER_ONLY) + { + server = dir->do_servers.do_servers_val; + server_len = 1; + } + else + { + server = dir->do_servers.do_servers_val; + server_len = dir->do_servers.do_servers_len; + } + + + retcode = __do_niscall2 (server, server_len, prog, xargs, req, xres, resp, + flags); + + nis_free_directory (dir); - return result; + return retcode; } diff --git a/nis/nis_intern.c b/nis/nis_intern.c deleted file mode 100644 index 7bfa263070..0000000000 --- a/nis/nis_intern.c +++ /dev/null @@ -1,145 +0,0 @@ -/* Copyright (c) 1997 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <string.h> -#include <rpcsvc/nis.h> -#include <rpcsvc/nislib.h> -#include "nis_intern.h" - -/* Nearly the same as nis_getnames, but nis_getnames stopped - when 2 points left */ -nis_name * -__nis_expandname (const char *name) -{ - nis_name *getnames = NULL; - char local_domain[NIS_MAXNAMELEN + 1]; - char *path, *cp; - int count, pos; - - strncpy (local_domain, nis_local_directory (), NIS_MAXNAMELEN); - local_domain[NIS_MAXNAMELEN] = '\0'; - - count = 1; - if ((getnames = malloc ((count + 1) * sizeof (char *))) == NULL) - return NULL; - - /* Do we have a fully qualified NIS+ name ? If yes, give it back */ - if (name[strlen (name) - 1] == '.') - { - if ((getnames[0] = strdup (name)) == NULL) - { - free (getnames); - return NULL; - } - getnames[1] = NULL; - - return getnames; - } - - /* Get the search path, where we have to search "name" */ - path = getenv ("NIS_PATH"); - if (path == NULL) - path = strdupa ("$"); - else - path = strdupa (path); - - pos = 0; - - cp = strtok (path, ":"); - while (cp) - { - if (strcmp (cp, "$") == 0) - { - char *cptr = local_domain; - char *tmp; - - while (*cptr != '\0') - { - if (pos >= count) - { - count += 5; - getnames = realloc (getnames, (count + 1) * sizeof (char *)); - } - tmp = malloc (strlen (cptr) + strlen (local_domain) + - strlen (name) + 2); - if (tmp == NULL) - return NULL; - - getnames[pos] = tmp; - tmp = stpcpy (tmp, name); - if (*cptr != '.') - *tmp++ = '.'; - stpcpy (tmp, cptr); - - ++pos; - - ++cptr; - while ((*cptr != '\0') && (*cptr != '.')) - ++cptr; - - if ((*cptr == '.') && (cptr[1] != '\0')) - ++cptr; - } - } - else - { - char *tmp; - - if (cp[strlen (cp) - 1] == '$') - { - tmp = malloc (strlen (cp) + strlen (local_domain) + - strlen (name) + 2); - if (tmp == NULL) - return NULL; - - getnames[pos] = tmp; - tmp = stpcpy (tmp, name); - *tmp++ = '.'; - tmp = stpcpy (tmp, cp); - --tmp; - if (tmp[- 1] != '.') - *tmp++ = '.'; - stpcpy (tmp, local_domain); - } - else - { - tmp = malloc (strlen (cp) + strlen (name) + 2); - if (tmp == NULL) - return NULL; - - tmp = stpcpy (tmp, name); - *tmp++ = '.'; - stpcpy (tmp, cp); - } - - if (pos > count) - { - count += 5; - getnames = realloc (getnames, (count + 1) * sizeof (char *)); - } - getnames[pos] = tmp; - pos++; - } - cp = strtok (NULL, ":"); - } - - getnames[pos] = NULL; - - return getnames; -} diff --git a/nis/nis_intern.h b/nis/nis_intern.h index 25c88a2b22..a7cb785e40 100644 --- a/nis/nis_intern.h +++ b/nis/nis_intern.h @@ -24,17 +24,22 @@ __BEGIN_DECLS -extern nis_error __do_niscall2 (const nis_server *server, u_int server_len, - u_long prog, xdrproc_t xargs, caddr_t req, - xdrproc_t xres, caddr_t resp, u_long flags); -extern nis_error __do_niscall (const_nis_name name, u_long prog, - xdrproc_t xargs, caddr_t req, xdrproc_t xres, - caddr_t resp, u_long flags); +extern nis_error __do_niscall2 __P ((const nis_server *serv, u_int serv_len, + u_long prog, xdrproc_t xargs, caddr_t req, + xdrproc_t xres, caddr_t resp, + u_long flags)); +extern nis_error __do_niscall __P ((const_nis_name name, u_long prog, + xdrproc_t xargs, caddr_t req, + xdrproc_t xres, caddr_t resp, + u_long flags)); #if defined (HAVE_SECURE_RPC) -extern AUTH *authdes_pk_create (const char *, const netobj *, u_int, - struct sockaddr *, des_block *); +extern AUTH *authdes_pk_create __P ((const char *, const netobj *, u_int, + struct sockaddr *, des_block *)); #endif -extern nis_name *__nis_expandname (const char *); + +/* NIS+ cache */ +extern directory_obj *__cache_search __P ((const_nis_name name)); +extern nis_error __cache_add __P ((fd_result *)); __END_DECLS diff --git a/nis/nis_lookup.c b/nis/nis_lookup.c index 6f5b12b285..82db7b0b25 100644 --- a/nis/nis_lookup.c +++ b/nis/nis_lookup.c @@ -30,128 +30,94 @@ nis_lookup (const_nis_name name, const u_long flags) struct ns_request req; nis_name *names; nis_error status; - int is_link = 1; /* We should go at least once in the while loop */ int count_links = 0; /* We will follow only 16 links in the deep */ - int i; + int done = 0; + int name_nr = 0; + nis_name namebuf[2] = {NULL, NULL}; res = calloc (1, sizeof (nis_result)); if (flags & EXPAND_NAME) { - names = __nis_expandname (name); + names = nis_getnames (name); if (names == NULL) { res->status = NIS_NAMEUNREACHABLE; return res; } - - i = 0; - while (names[i] != NULL && (i == 0 || res->status > 1)) - { - req.ns_name = names[i]; - - while (is_link) - { - req.ns_object.ns_object_len = 0; - req.ns_object.ns_object_val = NULL; - memset (res, '\0', sizeof (nis_result)); - - if ((status = __do_niscall (req.ns_name, NIS_LOOKUP, - (xdrproc_t) xdr_ns_request, - (caddr_t) & req, - (xdrproc_t) xdr_nis_result, - (caddr_t) res, flags)) != RPC_SUCCESS) - { - res->status = status; - nis_freenames (names); - return res; - } - - if ((res->status == NIS_SUCCESS || res->status == NIS_S_SUCCESS) - && (res->objects.objects_len > 0 && - res->objects.objects_val->zo_data.zo_type == LINK_OBJ)) - is_link = 1; - else - is_link = 0; - - if (is_link) - { - if ((flags & FOLLOW_LINKS) == FOLLOW_LINKS) - { - if (count_links == 16) - { - res->status = NIS_LINKNAMEERROR; - return res; - } - else - ++count_links; - - req.ns_name = res->objects.objects_val->LI_data.li_name; - } - else - { - res->status = NIS_NOTSEARCHABLE; - return res; - } - } - } - - ++i; - if (res->status == NIS_NOT_ME) - res->status = NIS_NOSUCHNAME; - } - - nis_freenames (names); } else { - req.ns_name = (char *)name; + names = namebuf; + names[0] = (nis_name) name; + } - while (is_link) + req.ns_name = names[0]; + while (!done) + { + req.ns_object.ns_object_len = 0; + req.ns_object.ns_object_val = NULL; + memset (res, '\0', sizeof (nis_result)); + + status = __do_niscall (req.ns_name, NIS_LOOKUP, + (xdrproc_t) xdr_ns_request, + (caddr_t) & req, + (xdrproc_t) xdr_nis_result, + (caddr_t) res, flags); + if (status != NIS_SUCCESS) + res->status = status; + + switch (res->status) { - req.ns_object.ns_object_len = 0; - req.ns_object.ns_object_val = NULL; - memset (res, '\0', sizeof (nis_result)); - - if ((status = __do_niscall (req.ns_name, NIS_LOOKUP, - (xdrproc_t) xdr_ns_request, - (caddr_t) &req, - (xdrproc_t) xdr_nis_result, - (caddr_t) res, flags)) != RPC_SUCCESS) + case NIS_PARTIAL: + case NIS_SUCCESS: + case NIS_S_SUCCESS: + if (__type_of(NIS_RES_OBJECT (res)) == LINK_OBJ && + flags & FOLLOW_LINKS) /* We are following links */ { - res->status = status; - return res; + /* if we hit the link limit, bail */ + if (count_links > NIS_MAXLINKS) + { + res->status = NIS_LINKNAMEERROR; + ++done; + break; + } + if (count_links) + free (req.ns_name); + ++count_links; + req.ns_name = strdup (NIS_RES_OBJECT (res)->LI_data.li_name); + nis_freeresult (res); + res = calloc (1, sizeof (nis_result)); } - - if ((res->status == NIS_SUCCESS || res->status == NIS_S_SUCCESS) && - (res->objects.objects_len > 0 && - res->objects.objects_val->zo_data.zo_type == LINK_OBJ)) - is_link = 1; else - is_link = 0; - - if (is_link) + ++done; + break; + case NIS_CBRESULTS: + /* XXX Implement CALLBACK here ! */ + ++done; + break; + default: + /* Try the next domainname if we don't follow a link */ + if (count_links) { - if ((flags & FOLLOW_LINKS) == FOLLOW_LINKS) - { - if (count_links == 16) - { - res->status = NIS_LINKNAMEERROR; - return res; - } - else - ++count_links; - - req.ns_name = res->objects.objects_val->LI_data.li_name; - } - else - { - res->status = NIS_NOTSEARCHABLE; - return res; - } + free (req.ns_name); + res->status = NIS_LINKNAMEERROR; + ++done; + break; } + ++name_nr; + if (names[name_nr] == NULL) + { + ++done; + break; + } + req.ns_name = names[name_nr]; + break; } } + if (names != namebuf) + nis_freenames (names); + return res; } diff --git a/nis/nis_print.c b/nis/nis_print.c index f829994245..1914840e86 100644 --- a/nis/nis_print.c +++ b/nis/nis_print.c @@ -77,6 +77,41 @@ nis_flags2str (const u_long flags) return buf; } +static void +nis_print_objtype (enum zotypes type) +{ + switch (type) + { + case BOGUS_OBJ: + fputs (_("BOGUS OBJECT\n"), stdout); + break; + case NO_OBJ: + fputs (_("NO OBJECT\n"), stdout); + break; + case DIRECTORY_OBJ: + fputs (_("DIRECTORY\n"), stdout); + break; + case GROUP_OBJ: + fputs (_("GROUP\n"), stdout); + break; + case TABLE_OBJ: + fputs (_("TABLE\n"), stdout); + break; + case ENTRY_OBJ: + fputs (_("ENTRY\n"), stdout); + break; + case LINK_OBJ: + fputs (_("LINK\n"), stdout); + break; + case PRIVATE_OBJ: + fputs (_("PRIVATE\n"), stdout); + break; + default: + fputs (_("(Unknown object)\n"), stdout); + break; + } +} + void nis_print_rights (const u_long access) { @@ -218,9 +253,10 @@ nis_print_table (const table_obj *obj) void nis_print_link (const link_obj *obj) { - printf (_("Type : %d\n"), obj->li_rtype); - printf (_("Name : %s\n"), obj->li_name); - printf (_("Attributes : %d\n"), obj->li_attrs.li_attrs_len); + fputs (_("Linked Object Type : "), stdout); + nis_print_objtype (obj->li_rtype); + printf (_("Linked to : %s\n"), obj->li_name); + /* XXX Print the attributs here, if they exists */ } void @@ -255,41 +291,29 @@ nis_print_object (const nis_object * obj) printf (_("Creation Time : %s"), ctime (&obj->zo_oid.ctime)); printf (_("Mod. Time : %s"), ctime (&obj->zo_oid.mtime)); fputs (_("Object Type : "), stdout); + nis_print_objtype (obj->zo_data.zo_type); switch (obj->zo_data.zo_type) { - case BOGUS_OBJ: - fputs (_("BOGUS OBJECT\n"), stdout); - break; - case NO_OBJ: - fputs (_("NO OBJECT\n"), stdout); - break; case DIRECTORY_OBJ: - fputs (_("DIRECTORY\n"), stdout); nis_print_directory (&obj->zo_data.objdata_u.di_data); break; case GROUP_OBJ: - fputs (_("GROUP\n"), stdout); nis_print_group (&obj->zo_data.objdata_u.gr_data); break; case TABLE_OBJ: - fputs (_("TABLE\n"), stdout); nis_print_table (&obj->zo_data.objdata_u.ta_data); break; case ENTRY_OBJ: - fputs (_("ENTRY\n"), stdout); nis_print_entry (&obj->zo_data.objdata_u.en_data); break; case LINK_OBJ: - fputs (_("LINK\n"), stdout); nis_print_link (&obj->zo_data.objdata_u.li_data); break; case PRIVATE_OBJ: - fputs (_("PRIVATE\n"), stdout); printf (_(" Data Length = %u\n"), obj->zo_data.objdata_u.po_data.po_data_len); break; default: - fputs (_("(Unknown object)\n"), stdout); break; } } diff --git a/nis/nis_subr.c b/nis/nis_subr.c index 780c27f7b5..fcd1903638 100644 --- a/nis/nis_subr.c +++ b/nis/nis_subr.c @@ -116,8 +116,7 @@ nis_getnames (const_nis_name name) nis_name *getnames = NULL; char local_domain[NIS_MAXNAMELEN + 1]; char *path, *cp; - int count, pos; - + int count, pos, have_point; strncpy (local_domain, nis_local_directory (), NIS_MAXNAMELEN); local_domain[NIS_MAXNAMELEN] = '\0'; @@ -146,6 +145,8 @@ nis_getnames (const_nis_name name) else path = strdupa (path); + have_point = (strchr (name, '.') != NULL); + pos = 0; cp = strtok (path, ":"); @@ -156,7 +157,7 @@ nis_getnames (const_nis_name name) char *cptr = local_domain; char *tmp; - while (count_dots (cptr) >= 2) + while ((have_point && *cptr != '\0') || (count_dots (cptr) >= 2)) { if (pos >= count) { @@ -171,13 +172,18 @@ nis_getnames (const_nis_name name) getnames[pos] = tmp; tmp = stpcpy (tmp, name); *tmp++ = '.'; - stpcpy (tmp, cptr); + if (cptr[1] != '\0') + stpcpy (tmp, cptr); + else + ++cptr; ++pos; - while (*cptr != '.') + while (*cptr != '.' && *cptr != '\0') + ++cptr; + if (cptr[0] != '\0' && cptr[1] != '\0') + /* If we have only ".", don't remove the "." */ ++cptr; - ++cptr; } } else @@ -186,31 +192,35 @@ nis_getnames (const_nis_name name) if (cp[strlen (cp) - 1] == '$') { + char *p; + tmp = malloc (strlen (cp) + strlen (local_domain) + strlen (name) + 2); if (tmp == NULL) return NULL; - tmp = stpcpy (tmp, name); - *tmp++ = '.'; - tmp = stpcpy (tmp, cp); - --tmp; - if (tmp[-1] != '.') - *tmp++ = '.'; - stpcpy (tmp, local_domain); + p = stpcpy (tmp, name); + *p++ = '.'; + p = stpcpy (p, cp); + --p; + if (p[-1] != '.') + *p++ = '.'; + stpcpy (p, local_domain); } else { + char *p; + tmp = malloc (strlen (cp) + strlen (name) + 2); if (tmp == NULL) return NULL; - tmp = stpcpy (tmp, name); - *tmp++ = '.'; - stpcpy (tmp, cp); + p = stpcpy (tmp, name); + *p++ = '.'; + stpcpy (p, cp); } - if (pos > count) + if (pos >= count) { count += 5; getnames = realloc (getnames, (count + 1) * sizeof (char *)); diff --git a/nis/nis_table.c b/nis/nis_table.c index 4cfd734173..16fd1e68ec 100644 --- a/nis/nis_table.c +++ b/nis/nis_table.c @@ -145,18 +145,6 @@ __create_ib_request (const_nis_name name, struct ib_request *ibreq, &ibreq->ibr_srch.ibr_srch_val); if (ibreq->ibr_name == NULL) return NULL; - if ((flags & EXPAND_NAME) == EXPAND_NAME) - { - nis_name *names; - - names = __nis_expandname (ibreq->ibr_name); - free (ibreq->ibr_name); - ibreq->ibr_name = NULL; - if (names == NULL) - return NULL; - ibreq->ibr_name = strdup (names[0]); - nis_freenames (names); - } ibreq->ibr_flags = (flags & (RETURN_RESULT | ADD_OVERWRITE | REM_MULTIPLE | MOD_SAMEOBJ | ADD_RESERVED | REM_RESERVED | @@ -181,9 +169,12 @@ nis_list (const_nis_name name, u_long flags, { nis_result *res = NULL; struct ib_request ibreq; - int result; - int count_links = 0; /* We will only follow 16 links! */ - int is_link = 1; /* We should go at least once in the while loop */ + int status; + int count_links = 0; /* We will only follow 16 links! */ + int done = 0; + nis_name *names; + nis_name namebuf[2] = {NULL, NULL}; + int name_nr = 0; res = calloc (1, sizeof (nis_result)); @@ -193,56 +184,95 @@ nis_list (const_nis_name name, u_long flags, return res; } - while (is_link) + if (flags & EXPAND_NAME) { - memset (res, '\0', sizeof (nis_result)); - - if ((result = __do_niscall (ibreq.ibr_name, NIS_IBLIST, - (xdrproc_t) xdr_ib_request, - (caddr_t) &ibreq, (xdrproc_t) xdr_nis_result, - (caddr_t) res, flags)) != RPC_SUCCESS) + names = nis_getnames (ibreq.ibr_name); + free (ibreq.ibr_name); + ibreq.ibr_name = NULL; + if (names == NULL) { - res->status = result; - nis_free_request (&ibreq); + res->status = NIS_BADNAME; return res; } + ibreq.ibr_name = strdup (names[name_nr]); + } + else + names = namebuf; - nis_free_request (&ibreq); + while (!done) + { + memset (res, '\0', sizeof (nis_result)); - if ((res->status == NIS_SUCCESS || res->status == NIS_S_SUCCESS) && - (res->objects.objects_len > 0 && - res->objects.objects_val->zo_data.zo_type == LINK_OBJ)) - is_link = 1; - else - is_link = 0; + status = __do_niscall (ibreq.ibr_name, NIS_IBLIST, + (xdrproc_t) xdr_ib_request, + (caddr_t) &ibreq, (xdrproc_t) xdr_nis_result, + (caddr_t) res, flags); + if (status != NIS_SUCCESS) + res->status = status; - if (is_link) + switch (res->status) { - if ((flags & FOLLOW_LINKS) == FOLLOW_LINKS) + case NIS_PARTIAL: + case NIS_SUCCESS: + case NIS_S_SUCCESS: + if (__type_of(NIS_RES_OBJECT (res)) == LINK_OBJ && + flags & FOLLOW_LINKS) /* We are following links */ { - if (count_links == 16) + /* if we hit the link limit, bail */ + if (count_links > NIS_MAXLINKS) { res->status = NIS_LINKNAMEERROR; - return res; - } - else - ++count_links; - - if (__create_ib_request (res->objects.objects_val->LI_data.li_name, - &ibreq, flags) == NULL) - { - res->status = NIS_BADNAME; - return res; + ++done; + break; } + if (count_links) + free (ibreq.ibr_name); + ++count_links; + free (ibreq.ibr_name); + ibreq.ibr_name = strdup (NIS_RES_OBJECT (res)->LI_data.li_name); + if (NIS_RES_OBJECT (res)->LI_data.li_attrs.li_attrs_len) + if (ibreq.ibr_srch.ibr_srch_len == 0) + { + ibreq.ibr_srch.ibr_srch_len = + NIS_RES_OBJECT (res)->LI_data.li_attrs.li_attrs_len; + ibreq.ibr_srch.ibr_srch_val = + NIS_RES_OBJECT (res)->LI_data.li_attrs.li_attrs_val; + } + nis_freeresult (res); + res = calloc (1, sizeof (nis_result)); } else + ++done; + break; + case NIS_CBRESULTS: + /* XXX Implement CALLBACK here ! */ + ++done; + break; + default: + /* Try the next domainname if we don't follow a link */ + if (count_links) + { + free (ibreq.ibr_name); + res->status = NIS_LINKNAMEERROR; + ++done; + break; + } + ++name_nr; + if (names[name_nr] == NULL) { - res->status = NIS_NOTSEARCHABLE; - return res; + ++done; + break; } + ibreq.ibr_name = names[name_nr]; + break; } } + if (names != namebuf) + nis_freenames (names); + + nis_free_request (&ibreq); + if (callback != NULL && (res->status == NIS_SUCCESS || res->status == NIS_S_SUCCESS)) { @@ -279,34 +309,34 @@ nis_add_entry (const_nis_name name, const nis_object *obj, ibreq.ibr_obj.ibr_obj_val = nis_clone_object (obj, NULL); ibreq.ibr_obj.ibr_obj_len = 1; - p1 = ibreq.ibr_obj.ibr_obj_val[0].zo_name; + p1 = ibreq.ibr_obj.ibr_obj_val->zo_name; if (p1 == NULL || strlen (p1) == 0) - ibreq.ibr_obj.ibr_obj_val[0].zo_name = + ibreq.ibr_obj.ibr_obj_val->zo_name = nis_leaf_of_r (name, buf1, sizeof (buf1)); - p2 = ibreq.ibr_obj.ibr_obj_val[0].zo_owner; + p2 = ibreq.ibr_obj.ibr_obj_val->zo_owner; if (p2 == NULL || strlen (p2) == 0) - ibreq.ibr_obj.ibr_obj_val[0].zo_owner = nis_local_principal (); + ibreq.ibr_obj.ibr_obj_val->zo_owner = nis_local_principal (); - p3 = ibreq.ibr_obj.ibr_obj_val[0].zo_group; + p3 = ibreq.ibr_obj.ibr_obj_val->zo_group; if (p3 == NULL || strlen (p3) == 0) - ibreq.ibr_obj.ibr_obj_val[0].zo_group = nis_local_group (); + ibreq.ibr_obj.ibr_obj_val->zo_group = nis_local_group (); - p4 = ibreq.ibr_obj.ibr_obj_val[0].zo_domain; - ibreq.ibr_obj.ibr_obj_val[0].zo_domain = + p4 = ibreq.ibr_obj.ibr_obj_val->zo_domain; + ibreq.ibr_obj.ibr_obj_val->zo_domain = nis_domain_of_r (name, buf4, sizeof (buf4)); if ((status = __do_niscall (ibreq.ibr_name, NIS_IBADD, (xdrproc_t) xdr_ib_request, (caddr_t) &ibreq, (xdrproc_t) xdr_nis_result, - (caddr_t) res, 0)) != RPC_SUCCESS) + (caddr_t) res, 0)) != NIS_SUCCESS) res->status = status; - ibreq.ibr_obj.ibr_obj_val[0].zo_name = p1; - ibreq.ibr_obj.ibr_obj_val[0].zo_owner = p2; - ibreq.ibr_obj.ibr_obj_val[0].zo_group = p3; - ibreq.ibr_obj.ibr_obj_val[0].zo_domain = p4; + ibreq.ibr_obj.ibr_obj_val->zo_name = p1; + ibreq.ibr_obj.ibr_obj_val->zo_owner = p2; + ibreq.ibr_obj.ibr_obj_val->zo_group = p3; + ibreq.ibr_obj.ibr_obj_val->zo_domain = p4; nis_free_request (&ibreq); @@ -336,33 +366,33 @@ nis_modify_entry (const_nis_name name, const nis_object *obj, ibreq.ibr_obj.ibr_obj_val = nis_clone_object (obj, NULL); ibreq.ibr_obj.ibr_obj_len = 1; - p1 = ibreq.ibr_obj.ibr_obj_val[0].zo_name; + p1 = ibreq.ibr_obj.ibr_obj_val->zo_name; if (p1 == NULL || strlen (p1) == 0) - ibreq.ibr_obj.ibr_obj_val[0].zo_name = + ibreq.ibr_obj.ibr_obj_val->zo_name = nis_leaf_of_r (name, buf1, sizeof (buf1)); - p2 = ibreq.ibr_obj.ibr_obj_val[0].zo_owner; + p2 = ibreq.ibr_obj.ibr_obj_val->zo_owner; if (p2 == NULL || strlen (p2) == 0) - ibreq.ibr_obj.ibr_obj_val[0].zo_owner = nis_local_principal (); + ibreq.ibr_obj.ibr_obj_val->zo_owner = nis_local_principal (); - p3 = ibreq.ibr_obj.ibr_obj_val[0].zo_group; + p3 = ibreq.ibr_obj.ibr_obj_val->zo_group; if (p3 == NULL || strlen (p3) == 0) - ibreq.ibr_obj.ibr_obj_val[0].zo_group = nis_local_group (); + ibreq.ibr_obj.ibr_obj_val->zo_group = nis_local_group (); - p4 = ibreq.ibr_obj.ibr_obj_val[0].zo_domain; - ibreq.ibr_obj.ibr_obj_val[0].zo_domain = + p4 = ibreq.ibr_obj.ibr_obj_val->zo_domain; + ibreq.ibr_obj.ibr_obj_val->zo_domain = nis_domain_of_r (name, buf4, sizeof (buf4)); if ((status = __do_niscall (ibreq.ibr_name, NIS_IBMODIFY, (xdrproc_t) xdr_ib_request, (caddr_t) & ibreq, (xdrproc_t) xdr_nis_result, - (caddr_t) res, 0)) != RPC_SUCCESS) + (caddr_t) res, 0)) != NIS_SUCCESS) res->status = status; - ibreq.ibr_obj.ibr_obj_val[0].zo_name = p1; - ibreq.ibr_obj.ibr_obj_val[0].zo_owner = p2; - ibreq.ibr_obj.ibr_obj_val[0].zo_group = p3; - ibreq.ibr_obj.ibr_obj_val[0].zo_domain = p4; + ibreq.ibr_obj.ibr_obj_val->zo_name = p1; + ibreq.ibr_obj.ibr_obj_val->zo_owner = p2; + ibreq.ibr_obj.ibr_obj_val->zo_group = p3; + ibreq.ibr_obj.ibr_obj_val->zo_domain = p4; nis_free_request (&ibreq); @@ -395,7 +425,7 @@ nis_remove_entry (const_nis_name name, const nis_object *obj, if ((status = __do_niscall (ibreq.ibr_name, NIS_IBREMOVE, (xdrproc_t) xdr_ib_request, (caddr_t) & ibreq, (xdrproc_t) xdr_nis_result, - (caddr_t) res, 0)) != RPC_SUCCESS) + (caddr_t) res, 0)) != NIS_SUCCESS) res->status = status; nis_free_request (&ibreq); @@ -421,7 +451,7 @@ nis_first_entry (const_nis_name name) if ((status = __do_niscall (ibreq.ibr_name, NIS_IBFIRST, (xdrproc_t) xdr_ib_request, (caddr_t) &ibreq, (xdrproc_t) xdr_nis_result, - (caddr_t) res, 0)) != RPC_SUCCESS) + (caddr_t) res, 0)) != NIS_SUCCESS) res->status = status; nis_free_request (&ibreq); @@ -460,7 +490,7 @@ nis_next_entry (const_nis_name name, const netobj *cookie) if ((status = __do_niscall (ibreq.ibr_name, NIS_IBNEXT, (xdrproc_t) xdr_ib_request, (caddr_t) &ibreq, (xdrproc_t) xdr_nis_result, - (caddr_t) res, 0)) != RPC_SUCCESS) + (caddr_t) res, 0)) != NIS_SUCCESS) res->status = status; nis_free_request (&ibreq); diff --git a/nis/nis_util.c b/nis/nis_util.c new file mode 100644 index 0000000000..4e39d6fb6a --- /dev/null +++ b/nis/nis_util.c @@ -0,0 +1,99 @@ +/* Copyright (c) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <string.h> +#include <rpcsvc/nis.h> +#include "nis_intern.h" + +fd_result * +__nis_finddirectory (directory_obj *dir, const_nis_name name) +{ + fd_args fd_args; + fd_result *fd_res; + + fd_args.dir_name = strdup (name); + fd_args.requester = nis_local_host(); + fd_res = calloc (1, sizeof (fd_result)); + + if (__do_niscall2 (dir->do_servers.do_servers_val, + dir->do_servers.do_servers_len, NIS_FINDDIRECTORY, + (xdrproc_t) xdr_fd_args, + (caddr_t) &fd_args, (xdrproc_t) xdr_fd_result, + (caddr_t) fd_res, NO_AUTHINFO|USE_DGRAM) != NIS_SUCCESS) + fd_res->status = NIS_RPCERROR; + + return fd_res; +} + +/* This is from libc/db/hash/hash_func.c, hash3 is static there */ +/* + * This is INCREDIBLY ugly, but fast. We break the string up into 8 byte + * units. On the first time through the loop we get the "leftover bytes" + * (strlen % 8). On every other iteration, we perform 8 HASHC's so we handle + * all 8 bytes. Essentially, this saves us 7 cmp & branch instructions. If + * this routine is heavily used enough, it's worth the ugly coding. + * + * OZ's original sdbm hash + */ +unsigned long +__nis_hash (const void *keyarg, register size_t len) +{ + register const u_char *key; + register size_t loop; + register u_int32_t h; + +#define HASHC h = *key++ + 65599 * h + + h = 0; + key = keyarg; + if (len > 0) + { + loop = (len + 8 - 1) >> 3; + switch (len & (8 - 1)) + { + case 0: + do { + HASHC; + /* FALLTHROUGH */ + case 7: + HASHC; + /* FALLTHROUGH */ + case 6: + HASHC; + /* FALLTHROUGH */ + case 5: + HASHC; + /* FALLTHROUGH */ + case 4: + HASHC; + /* FALLTHROUGH */ + case 3: + HASHC; + /* FALLTHROUGH */ + case 2: + HASHC; + /* FALLTHROUGH */ + case 1: + HASHC; + } while (--loop); + } + } + return (h); +} + diff --git a/nis/nisplus-parser.h b/nis/nisplus-parser.h new file mode 100644 index 0000000000..b24ca46507 --- /dev/null +++ b/nis/nisplus-parser.h @@ -0,0 +1,34 @@ +/* Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef __NISPLUS_PARSER_H_ +#define __NISPLUS_PARSER_H_ 1 + +#include <pwd.h> +#include <grp.h> +#include <shadow.h> + +extern int _nss_nisplus_parse_pwent (nis_result *, struct passwd *, + char *, size_t); +extern int _nss_nisplus_parse_grent (nis_result *, u_long, struct group *, + char *, size_t); +extern int _nss_nisplus_parse_spent (nis_result *, struct spwd *, + char *, size_t); + +#endif diff --git a/nis/nss_compat/compat-grp.c b/nis/nss_compat/compat-grp.c index 40a190eea7..59165ea590 100644 --- a/nis/nss_compat/compat-grp.c +++ b/nis/nss_compat/compat-grp.c @@ -30,9 +30,12 @@ #include <nsswitch.h> #include "nss-nisplus.h" +#include "nisplus-parser.h" static service_user *ni = NULL; static bool_t use_nisplus = FALSE; /* default: group_compat: nis */ +static nis_name grptable = NULL; /* Name of the group table */ +static size_t grptablelen = 0; /* Get the declaration of the parser function. */ #define ENTNAME grent @@ -57,14 +60,12 @@ struct ent_t char *oldkey; int oldkeylen; nis_result *result; - nis_name *names; - u_long names_nr; FILE *stream; struct blacklist_t blacklist; }; typedef struct ent_t ent_t; -static ent_t ext_ent = {0, 0, NULL, 0, NULL, NULL, 0, NULL, {NULL, 0, 0}}; +static ent_t ext_ent = {0, 0, NULL, 0, NULL, NULL, {NULL, 0, 0}}; /* Protect global state against multiple changers. */ __libc_lock_define_initialized (static, lock) @@ -72,8 +73,31 @@ __libc_lock_define_initialized (static, lock) /* Prototypes for local functions. */ static void blacklist_store_name (const char *, ent_t *); static int in_blacklist (const char *, int, ent_t *); -extern int _nss_nisplus_parse_grent (nis_result *, struct group *, - char *, size_t); + +static enum nss_status +_nss_first_init (void) +{ + if (ni == NULL) + { + __nss_database_lookup ("group_compat", NULL, "nis", &ni); + use_nisplus = (strcmp (ni->name, "nisplus") == 0); + } + + if (grptable == NULL) + { + char buf [20 + strlen (nis_local_directory ())]; + char *p; + + p = stpcpy (buf, "group.org_dir."); + p = stpcpy (p, nis_local_directory ()); + grptable = strdup (buf); + if (grptable == NULL) + return NSS_STATUS_TRYAGAIN; + grptablelen = strlen (grptable); + } + + return NSS_STATUS_SUCCESS; +} static enum nss_status internal_setgrent (ent_t *ent) @@ -82,6 +106,9 @@ internal_setgrent (ent_t *ent) ent->nis = ent->nis_first = 0; + if (_nss_first_init () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; + if (ent->oldkey != NULL) { free (ent->oldkey); @@ -95,12 +122,6 @@ internal_setgrent (ent_t *ent) ent->result = NULL; } - if (ent->names != NULL) - { - nis_freenames (ent->names); - ent->names = NULL; - } - ent->names_nr = 0; ent->blacklist.current = 0; if (ent->blacklist.data != NULL) ent->blacklist.data[0] = '\0'; @@ -126,12 +147,6 @@ _nss_compat_setgrent (void) __libc_lock_lock (lock); - if (ni == NULL) - { - __nss_database_lookup ("group_compat", NULL, "nis", &ni); - use_nisplus = (strcmp (ni->name, "nisplus") == 0); - } - result = internal_setgrent (&ext_ent); __libc_lock_unlock (lock); @@ -164,12 +179,6 @@ internal_endgrent (ent_t *ent) ent->result = NULL; } - if (ent->names != NULL) - { - nis_freenames (ent->names); - ent->names = NULL; - } - ent->names_nr = 0; ent->blacklist.current = 0; if (ent->blacklist.data != NULL) ent->blacklist.data[0] = '\0'; @@ -263,22 +272,11 @@ getgrent_next_nisplus (struct group *result, ent_t *ent, char *buffer, { int parse_res; - if (ent->names == NULL) - { - ent->names = nis_getnames ("group.org_dir"); - if (ent->names == NULL || ent->names[0] == NULL) - { - ent->nis = 0; - return NSS_STATUS_UNAVAIL; - } - } - do { if (ent->nis_first) { - next_name: - ent->result = nis_first_entry(ent->names[ent->names_nr]); + ent->result = nis_first_entry(grptable); if (niserr2nss (ent->result->status) != NSS_STATUS_SUCCESS) { ent->nis = 0; @@ -290,27 +288,16 @@ getgrent_next_nisplus (struct group *result, ent_t *ent, char *buffer, { nis_result *res; - res = nis_next_entry(ent->names[ent->names_nr], - &ent->result->cookie); + res = nis_next_entry(grptable, &ent->result->cookie); nis_freeresult (ent->result); ent->result = res; if (niserr2nss (ent->result->status) != NSS_STATUS_SUCCESS) { - if ((ent->result->status == NIS_NOTFOUND) && - ent->names[ent->names_nr + 1] != NULL) - { - nis_freeresult (ent->result); - ent->names_nr += 1; - goto next_name; - } - else - { - ent->nis = 0; - return niserr2nss (ent->result->status); - } + ent->nis = 0; + return niserr2nss (ent->result->status); } } - parse_res = _nss_nisplus_parse_grent (ent->result, result, buffer, + parse_res = _nss_nisplus_parse_grent (ent->result, 0, result, buffer, buflen); if (parse_res && in_blacklist (result->gr_name, strlen (result->gr_name), ent)) @@ -332,11 +319,10 @@ getgrent_next_file_plusgroup (struct group *result, char *buffer, if (use_nisplus) /* Do the NIS+ query here */ { nis_result *res; - char buf[strlen (result->gr_name) + 24]; + char buf[strlen (result->gr_name) + 24 + grptablelen]; - sprintf(buf, "[name=%s],group.org_dir", - &result->gr_name[1]); - res = nis_list(buf, EXPAND_NAME, NULL, NULL); + sprintf(buf, "[name=%s],%s", &result->gr_name[1], grptable); + res = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); if (niserr2nss (res->status) != NSS_STATUS_SUCCESS) { enum nss_status status = niserr2nss (res->status); @@ -344,7 +330,7 @@ getgrent_next_file_plusgroup (struct group *result, char *buffer, nis_freeresult (res); return status; } - parse_res = _nss_nisplus_parse_grent (res, result, buffer, buflen); + parse_res = _nss_nisplus_parse_grent (res, 0, result, buffer, buflen); nis_freeresult (res); } else /* Use NIS */ @@ -470,12 +456,6 @@ _nss_compat_getgrent_r (struct group *grp, char *buffer, size_t buflen) __libc_lock_lock (lock); - if (ni == NULL) - { - __nss_database_lookup ("group_compat", NULL, "nis", &ni); - use_nisplus = (strcmp (ni->name, "nisplus") == 0); - } - /* Be prepared that the setgrent function was not called before. */ if (ext_ent.stream == NULL) status = internal_setgrent (&ext_ent); @@ -493,7 +473,7 @@ enum nss_status _nss_compat_getgrnam_r (const char *name, struct group *grp, char *buffer, size_t buflen) { - ent_t ent = {0, 0, NULL, 0, NULL, NULL, 0, NULL, {NULL, 0, 0}}; + ent_t ent = {0, 0, NULL, 0, NULL, NULL, {NULL, 0, 0}}; enum nss_status status; if (name[0] == '-' || name[0] == '+') @@ -501,15 +481,10 @@ _nss_compat_getgrnam_r (const char *name, struct group *grp, __libc_lock_lock (lock); - if (ni == NULL) - { - __nss_database_lookup ("group_compat", NULL, "nis", &ni); - use_nisplus = (strcmp (ni->name, "nisplus") == 0); - } + status = internal_setgrent (&ent); __libc_lock_unlock (lock); - status = internal_setgrent (&ent); if (status != NSS_STATUS_SUCCESS) return status; @@ -527,20 +502,15 @@ enum nss_status _nss_compat_getgrgid_r (gid_t gid, struct group *grp, char *buffer, size_t buflen) { - ent_t ent = {0, 0, NULL, 0, NULL, NULL, 0, NULL, {NULL, 0, 0}}; + ent_t ent = {0, 0, NULL, 0, NULL, NULL, {NULL, 0, 0}}; enum nss_status status; __libc_lock_lock (lock); - if (ni == NULL) - { - __nss_database_lookup ("group_compat", NULL, "nis", &ni); - use_nisplus = (strcmp (ni->name, "nisplus") == 0); - } + status = internal_setgrent (&ent); __libc_lock_unlock (lock); - status = internal_setgrent (&ent); if (status != NSS_STATUS_SUCCESS) return status; diff --git a/nis/nss_compat/compat-pwd.c b/nis/nss_compat/compat-pwd.c index d0d230bb1e..0d0f2a6c33 100644 --- a/nis/nss_compat/compat-pwd.c +++ b/nis/nss_compat/compat-pwd.c @@ -32,9 +32,12 @@ #include "netgroup.h" #include "nss-nisplus.h" +#include "nisplus-parser.h" static service_user *ni = NULL; static bool_t use_nisplus = FALSE; /* default: passwd_compat: nis */ +static nis_name pwdtable = NULL; /* Name of the pwd table */ +static size_t pwdtablelen = 0; /* Get the declaration of the parser function. */ #define ENTNAME pwent @@ -60,8 +63,6 @@ struct ent_t char *oldkey; int oldkeylen; nis_result *result; - nis_name *names; - u_long names_nr; FILE *stream; struct blacklist_t blacklist; struct passwd pwd; @@ -69,7 +70,7 @@ struct ent_t }; typedef struct ent_t ent_t; -static ent_t ext_ent = {0, 0, 0, NULL, 0, NULL, NULL, 0, NULL, {NULL, 0, 0}, +static ent_t ext_ent = {0, 0, 0, NULL, 0, NULL, NULL, {NULL, 0, 0}, {NULL, NULL, 0, 0, NULL, NULL, NULL}}; /* Protect global state against multiple changers. */ @@ -78,8 +79,7 @@ __libc_lock_define_initialized (static, lock) /* Prototypes for local functions. */ static void blacklist_store_name (const char *, ent_t *); static int in_blacklist (const char *, int, ent_t *); -extern int _nss_nisplus_parse_pwent (nis_result *, struct passwd *, - char *, size_t); + static void give_pwd_free (struct passwd *pwd) { @@ -209,12 +209,19 @@ internal_setpwent (ent_t *ent) ent->result = NULL; } - if (ent->names != NULL) + if (pwdtable == NULL) { - nis_freenames (ent->names); - ent->names = NULL; + char buf [20 + strlen (nis_local_directory ())]; + char *p; + + p = stpcpy (buf, "passwd.org_dir."); + p = stpcpy (p, nis_local_directory ()); + pwdtable = strdup (buf); + if (pwdtable == NULL) + return NSS_STATUS_TRYAGAIN; + pwdtablelen = strlen (pwdtable); } - ent->names_nr = 0; + ent->blacklist.current = 0; if (ent->blacklist.data != NULL) ent->blacklist.data[0] = '\0'; @@ -280,13 +287,6 @@ internal_endpwent (ent_t *ent) ent->result = NULL; } - if (ent->names != NULL) - { - nis_freenames (ent->names); - ent->names = NULL; - } - ent->names_nr = 0; - ent->blacklist.current = 0; if (ent->blacklist.data != NULL) ent->blacklist.data[0] = '\0'; @@ -435,9 +435,9 @@ getpwent_next_nisplus_netgr (struct passwd *result, ent_t *ent, char *group, p2 = buffer + (buflen - p2len); buflen -= p2len; { - char buf[strlen (user) + 30]; - sprintf(buf, "[name=%s],passwd.org_dir", user); - nisres = nis_list(buf, EXPAND_NAME, NULL, NULL); + char buf[strlen (user) + 30 + pwdtablelen]; + sprintf(buf, "[name=%s],%s", user, pwdtable); + nisres = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); } if (niserr2nss (nisres->status) != NSS_STATUS_SUCCESS) { @@ -475,16 +475,6 @@ getpwent_next_nisplus (struct passwd *result, ent_t *ent, char *buffer, size_t p2len; char *p2; - if (ent->names == NULL) - { - ent->names = nis_getnames ("passwd.org_dir"); - if (ent->names == NULL || ent->names[0] == NULL) - { - ent->nis = 0; - return NSS_STATUS_UNAVAIL; - } - } - p2len = pwd_need_buflen (&ent->pwd); if (p2len > buflen) { @@ -497,8 +487,7 @@ getpwent_next_nisplus (struct passwd *result, ent_t *ent, char *buffer, { if (ent->first) { - next_name: - ent->result = nis_first_entry(ent->names[ent->names_nr]); + ent->result = nis_first_entry(pwdtable); if (niserr2nss (ent->result->status) != NSS_STATUS_SUCCESS) { ent->nis = 0; @@ -511,25 +500,14 @@ getpwent_next_nisplus (struct passwd *result, ent_t *ent, char *buffer, { nis_result *res; - res = nis_next_entry(ent->names[ent->names_nr], - &ent->result->cookie); + res = nis_next_entry(pwdtable, &ent->result->cookie); nis_freeresult (ent->result); ent->result = res; if (niserr2nss (ent->result->status) != NSS_STATUS_SUCCESS) { - if ((ent->result->status == NIS_NOTFOUND) && - ent->names[ent->names_nr + 1] != NULL) - { - nis_freeresult (ent->result); - ent->names_nr += 1; - goto next_name; - } - else - { - ent->nis = 0; - give_pwd_free (&ent->pwd); - return niserr2nss (ent->result->status); - } + ent->nis = 0; + give_pwd_free (&ent->pwd); + return niserr2nss (ent->result->status); } } parse_res = _nss_nisplus_parse_pwent (ent->result, result, buffer, @@ -648,11 +626,10 @@ getpwent_next_file_plususer (struct passwd *result, char *buffer, if (use_nisplus) /* Do the NIS+ query here */ { nis_result *res; - char buf[strlen (result->pw_name) + 24]; + char buf[strlen (result->pw_name) + 24 + pwdtablelen]; - sprintf(buf, "[name=%s],passwd.org_dir", - &result->pw_name[1]); - res = nis_list(buf, EXPAND_NAME, NULL, NULL); + sprintf(buf, "[name=%s],%s", &result->pw_name[1], pwdtable); + res = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); if (niserr2nss (res->status) != NSS_STATUS_SUCCESS) { enum nss_status status = niserr2nss (res->status); @@ -869,7 +846,7 @@ enum nss_status _nss_compat_getpwnam_r (const char *name, struct passwd *pwd, char *buffer, size_t buflen) { - ent_t ent = {0, 0, 0, NULL, 0, NULL, NULL, 0, NULL, {NULL, 0, 0}, + ent_t ent = {0, 0, 0, NULL, 0, NULL, NULL, {NULL, 0, 0}, {NULL, NULL, 0, 0, NULL, NULL, NULL}}; enum nss_status status; @@ -904,7 +881,7 @@ enum nss_status _nss_compat_getpwuid_r (uid_t uid, struct passwd *pwd, char *buffer, size_t buflen) { - ent_t ent = {0, 0, 0, NULL, 0, NULL, NULL, 0, NULL, {NULL, 0, 0}, + ent_t ent = {0, 0, 0, NULL, 0, NULL, NULL, {NULL, 0, 0}, {NULL, NULL, 0, 0, NULL, NULL, NULL}}; enum nss_status status; diff --git a/nis/nss_compat/compat-spwd.c b/nis/nss_compat/compat-spwd.c index 066f707ebb..4199baf202 100644 --- a/nis/nss_compat/compat-spwd.c +++ b/nis/nss_compat/compat-spwd.c @@ -32,9 +32,12 @@ #include "netgroup.h" #include "nss-nisplus.h" +#include "nisplus-parser.h" static service_user *ni = NULL; static bool_t use_nisplus = FALSE; /* default: passwd_compat: nis */ +static nis_name pwdtable = NULL; /* Name of the password table */ +static size_t pwdtablelen = 0; /* Get the declaration of the parser function. */ #define ENTNAME spent @@ -60,8 +63,6 @@ struct ent_t char *oldkey; int oldkeylen; nis_result *result; - nis_name *names; - u_long names_nr; FILE *stream; struct blacklist_t blacklist; struct spwd pwd; @@ -69,7 +70,7 @@ struct ent_t }; typedef struct ent_t ent_t; -static ent_t ext_ent = {0, 0, 0, NULL, 0, NULL, NULL, 0, NULL, {NULL, 0, 0}, +static ent_t ext_ent = {0, 0, 0, NULL, 0, NULL, NULL, {NULL, 0, 0}, {NULL, NULL, 0, 0, 0, 0, 0, 0, 0}}; /* Protect global state against multiple changers. */ @@ -78,8 +79,7 @@ __libc_lock_define_initialized (static, lock) /* Prototypes for local functions. */ static void blacklist_store_name (const char *, ent_t *); static int in_blacklist (const char *, int, ent_t *); -extern int _nss_nisplus_parse_spent (nis_result *, struct spwd *, - char *, size_t); + static void give_spwd_free (struct spwd *pwd) { @@ -160,12 +160,19 @@ internal_setspent (ent_t *ent) nis_freeresult (ent->result); ent->result = NULL; } - if (ent->names != NULL) + + if (pwdtable == NULL) { - nis_freenames (ent->names); - ent->names = NULL; + char buf [20 + strlen (nis_local_directory ())]; + char *p; + + p = stpcpy (buf, "passwd.org_dir."); + p = stpcpy (p, nis_local_directory ()); + pwdtable = strdup (buf); + if (pwdtable == NULL) + return NSS_STATUS_TRYAGAIN; + pwdtablelen = strlen (pwdtable); } - ent->names_nr = 0; ent->blacklist.current = 0; if (ent->blacklist.data != NULL) @@ -234,12 +241,6 @@ internal_endspent (ent_t *ent) nis_freeresult (ent->result); ent->result = NULL; } - if (ent->names != NULL) - { - nis_freenames (ent->names); - ent->names = NULL; - } - ent->names_nr = 0; ent->blacklist.current = 0; if (ent->blacklist.data != NULL) @@ -387,9 +388,9 @@ getspent_next_nisplus_netgr (struct spwd *result, ent_t *ent, char *group, p2 = buffer + (buflen - p2len); buflen -= p2len; { - char buf[strlen (user) + 30]; - sprintf(buf, "[name=%s],passwd.org_dir", user); - nisres = nis_list(buf, EXPAND_NAME, NULL, NULL); + char buf[strlen (user) + 30 + pwdtablelen]; + sprintf(buf, "[name=%s],%s", user, pwdtable); + nisres = nis_list(buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL); } if (niserr2nss (nisres->status) != NSS_STATUS_SUCCESS) { @@ -427,16 +428,6 @@ getspent_next_nisplus (struct spwd *result, ent_t *ent, char *buffer, size_t p2len; char *p2; - if (ent->names == NULL) - { - ent->names = nis_getnames ("passwd.org_dir"); - if (ent->names == NULL || ent->names[0] == NULL) - { - ent->nis = 0; - return NSS_STATUS_UNAVAIL; - } - } - p2len = spwd_need_buflen (&ent->pwd); if (p2len > buflen) { @@ -449,8 +440,7 @@ getspent_next_nisplus (struct spwd *result, ent_t *ent, char *buffer, { if (ent->first) { - next_name: - ent->result = nis_first_entry(ent->names[ent->names_nr]); + ent->result = nis_first_entry(pwdtable); if (niserr2nss (ent->result->status) != NSS_STATUS_SUCCESS) { ent->nis = 0; @@ -463,25 +453,14 @@ getspent_next_nisplus (struct spwd *result, ent_t *ent, char *buffer, { nis_result *res; - res = nis_next_entry(ent->names[ent->names_nr], - &ent->result->cookie); + res = nis_next_entry(pwdtable, &ent->result->cookie); nis_freeresult (ent->result); ent->result = res; if (niserr2nss (ent->result->status) != NSS_STATUS_SUCCESS) { - if ((ent->result->status == NIS_NOTFOUND) && - ent->names[ent->names_nr + 1] != NULL) - { - nis_freeresult (ent->result); - ent->names_nr += 1; - goto next_name; - } - else - { - ent->nis = 0; - give_spwd_free (&ent->pwd); - return niserr2nss (ent->result->status); - } + ent->nis = 0; + give_spwd_free (&ent->pwd); + return niserr2nss (ent->result->status); } } parse_res = _nss_nisplus_parse_spent (ent->result, result, buffer, @@ -601,11 +580,10 @@ getspent_next_file_plususer (struct spwd *result, char *buffer, if (use_nisplus) /* Do the NIS+ query here */ { nis_result *res; - char buf[strlen (result->sp_namp) + 24]; + char buf[strlen (result->sp_namp) + 24 + pwdtablelen]; - sprintf(buf, "[name=%s],passwd.org_dir", - &result->sp_namp[1]); - res = nis_list(buf, EXPAND_NAME, NULL, NULL); + sprintf(buf, "[name=%s],%s", &result->sp_namp[1], pwdtable); + res = nis_list(buf, 0, NULL, NULL); if (niserr2nss (res->status) != NSS_STATUS_SUCCESS) { enum nss_status status = niserr2nss (res->status); @@ -821,7 +799,7 @@ enum nss_status _nss_compat_getspnam_r (const char *name, struct spwd *pwd, char *buffer, size_t buflen) { - ent_t ent = {0, 0, 0, NULL, 0, NULL, NULL, 0, NULL, {NULL, 0, 0}, + ent_t ent = {0, 0, 0, NULL, 0, NULL, NULL, {NULL, 0, 0}, {NULL, NULL, 0, 0, 0, 0, 0, 0, 0}}; enum nss_status status; diff --git a/nis/nss_nis/nis-publickey.c b/nis/nss_nis/nis-publickey.c index 52d1783d63..ade09c4127 100644 --- a/nis/nss_nis/nis-publickey.c +++ b/nis/nss_nis/nis-publickey.c @@ -22,7 +22,6 @@ #include <errno.h> #include <string.h> #include <syslog.h> -#include <bits/libc-lock.h> #include <rpc/rpc.h> #include <rpcsvc/yp.h> #include <rpcsvc/ypclnt.h> @@ -40,7 +39,7 @@ _nss_nis_getpublickey (const char *netname, char *pkey) enum nss_status retval; char *domain, *result; int len; - + pkey[0] = 0; if (netname == NULL) diff --git a/nis/nss_nisplus/nisplus-alias.c b/nis/nss_nisplus/nisplus-alias.c index 1784778ca0..660ba3c34a 100644 --- a/nis/nss_nisplus/nisplus-alias.c +++ b/nis/nss_nisplus/nisplus-alias.c @@ -31,27 +31,47 @@ __libc_lock_define_initialized (static, lock) static nis_result *result = NULL; -static nis_name *names = NULL; +static u_long next_entry = 0; +static nis_name tablename_val = NULL; +static u_long tablename_len = 0; #define NISENTRYVAL(idx,col,res) \ - ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) + ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) #define NISENTRYLEN(idx,col,res) \ - ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) + ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) + +static enum nss_status +_nss_create_tablename (void) +{ + if (tablename_val == NULL) + { + char buf [40 + strlen (nis_local_directory ())]; + char *p; + + p = stpcpy (buf, "mail_aliases.org_dir."); + p = stpcpy (p, nis_local_directory ()); + tablename_val = strdup (buf); + if (tablename_val == NULL) + return NSS_STATUS_TRYAGAIN; + tablename_len = strlen (tablename_val); + } + return NSS_STATUS_SUCCESS; +} static int -_nss_nisplus_parse_aliasent (nis_result *result, struct aliasent *alias, - char *buffer, size_t buflen) +_nss_nisplus_parse_aliasent (nis_result *result, unsigned long entry, + struct aliasent *alias, char *buffer, + size_t buflen) { if (result == NULL) return 0; if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) || - result->objects.objects_len != 1 || - result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ || - strcmp(result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type, + __type_of (&result->objects.objects_val[entry]) != ENTRY_OBJ || + strcmp(result->objects.objects_val[entry].EN_data.en_type, "mail_aliases") != 0 || - result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 2) + result->objects.objects_val[entry].EN_data.en_cols.en_cols_len < 2) return 0; else { @@ -62,7 +82,7 @@ _nss_nisplus_parse_aliasent (nis_result *result, struct aliasent *alias, char *line; char *cp; - if (NISENTRYLEN(0, 1, result) >= buflen) + if (NISENTRYLEN(entry, 1, result) >= buflen) { /* The line is too long for our buffer. */ no_more_room: @@ -71,19 +91,20 @@ _nss_nisplus_parse_aliasent (nis_result *result, struct aliasent *alias, } else { - strncpy (buffer, NISENTRYVAL(0, 1, result), NISENTRYLEN(0, 1, result)); - buffer[NISENTRYLEN(0, 1, result)] = '\0'; + strncpy (buffer, NISENTRYVAL(entry, 1, result), + NISENTRYLEN(entry, 1, result)); + buffer[NISENTRYLEN(entry, 1, result)] = '\0'; } - if (NISENTRYLEN(0, 0, result) >= room_left) + if (NISENTRYLEN(entry, 0, result) >= room_left) goto no_more_room; alias->alias_local = 0; alias->alias_members_len = 0; *first_unused = '\0'; ++first_unused; - strcpy (first_unused, NISENTRYVAL(0, 0, result)); - first_unused[NISENTRYLEN(0, 0, result)] = '\0'; + strcpy (first_unused, NISENTRYVAL(entry, 0, result)); + first_unused[NISENTRYLEN(entry, 0, result)] = '\0'; alias->alias_name = first_unused; /* Terminate the line for any case. */ @@ -129,23 +150,38 @@ _nss_nisplus_parse_aliasent (nis_result *result, struct aliasent *alias, } } -enum nss_status -_nss_nisplus_setaliasent (void) +static enum nss_status +internal_setaliasent (void) { - __libc_lock_lock (lock); - if (result) nis_freeresult (result); result = NULL; - if (names) + + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; + + next_entry = 0; + result = nis_list(tablename_val, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); + if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) { - nis_freenames (names); - names = NULL; + nis_freeresult (result); + result = NULL; } + return niserr2nss (result->status); +} + +enum nss_status +_nss_nisplus_setaliasent (void) +{ + enum nss_status status; + + __libc_lock_lock (lock); + + status = internal_setaliasent (); __libc_lock_unlock (lock); - return NSS_STATUS_SUCCESS; + return status; } enum nss_status @@ -156,11 +192,7 @@ _nss_nisplus_endaliasent (void) if (result) nis_freeresult (result); result = NULL; - if (names) - { - nis_freenames (names); - names = NULL; - } + next_entry = 0; __libc_lock_unlock (lock); @@ -173,31 +205,18 @@ internal_nisplus_getaliasent_r (struct aliasent *alias, { int parse_res; + if (result == NULL) + internal_setaliasent (); + /* Get the next entry until we found a correct one. */ do { - if (result == NULL) - { - names = nis_getnames("mail_aliases.org_dir"); - if (names == NULL || names[0] == NULL) - return NSS_STATUS_UNAVAIL; - - result = nis_first_entry(names[0]); - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - return niserr2nss (result->status); - } - else - { - nis_result *res2; - - res2 = nis_next_entry(names[0], &result->cookie); - nis_freeresult (result); - result = res2; - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - return niserr2nss (result->status); - } + if (next_entry >= result->objects.objects_len) + return NSS_STATUS_NOTFOUND; - parse_res = _nss_nisplus_parse_aliasent (result, alias, buffer, buflen); + parse_res = _nss_nisplus_parse_aliasent (result, next_entry, alias, + buffer, buflen); + ++next_entry; } while (!parse_res); return NSS_STATUS_SUCCESS; @@ -224,21 +243,26 @@ _nss_nisplus_getaliasbyname_r (const char *name, struct aliasent *alias, { int parse_res; + if (tablename_val == NULL) + if (_nss_create_tablename() != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; + if (name == NULL || strlen(name) > 8) return NSS_STATUS_NOTFOUND; else { nis_result *result; - char buf[strlen (name) + 30]; + char buf[strlen (name) + 30 + tablename_len]; - sprintf(buf, "[name=%s],mail_aliases.org_dir", name); + sprintf(buf, "[name=%s],%s", name, tablename_val); - result = nis_list(buf, EXPAND_NAME, NULL, NULL); + result = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) return niserr2nss (result->status); - parse_res = _nss_nisplus_parse_aliasent (result, alias, buffer, buflen); + parse_res = _nss_nisplus_parse_aliasent (result, 0, alias, + buffer, buflen); if (parse_res) return NSS_STATUS_SUCCESS; diff --git a/nis/nss_nisplus/nisplus-ethers.c b/nis/nss_nisplus/nisplus-ethers.c index d83c7b2e11..7c07833ef4 100644 --- a/nis/nss_nisplus/nisplus-ethers.c +++ b/nis/nss_nisplus/nisplus-ethers.c @@ -33,7 +33,8 @@ __libc_lock_define_initialized (static, lock) static nis_result *result = NULL; -static nis_name *names = NULL; +static nis_name tablename_val = NULL; +static u_long tablename_len = 0; /* Because the `ethers' lookup does not fit so well in the scheme so we define a dummy struct here which helps us to use the available @@ -45,32 +46,6 @@ struct etherent }; struct etherent_data {}; -#define ENTNAME etherent -#define DATABASE "ethers" -#include "../../nss/nss_files/files-parse.c" -LINE_PARSER -("#", - /* Read the ethernet address: 6 x 8bit hexadecimal number. */ - { - size_t cnt; - - for (cnt = 0; cnt < 6; ++cnt) - { - unsigned int number; - - if (cnt < 5) - INT_FIELD (number, ISCOLON , 0, 16, (unsigned int)) - else - INT_FIELD (number, isspace, 0, 16, (unsigned int)) - - if (number > 0xff) - return 0; - result->e_addr.ether_addr_octet[cnt] = number; - } - }; - STRING_FIELD (result->e_name, isspace, 1); - ) - #define NISENTRYVAL(idx,col,res) \ ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) @@ -83,21 +58,18 @@ _nss_nisplus_parse_etherent (nis_result *result, struct etherent *ether, { char *p = buffer; size_t room_left = buflen; - struct parser_data *data = (void *) buffer; if (result == NULL) return 0; if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) || result->objects.objects_len != 1 || - result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ || - strcmp(result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type, + __type_of (NIS_RES_OBJECT (result)) != ENTRY_OBJ || + strcmp(NIS_RES_OBJECT (result)->EN_data.en_type, "ethers_tbl") != 0 || - result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 2) + NIS_RES_OBJECT(result)->EN_data.en_cols.en_cols_len < 2) return 0; - memset (p, '\0', room_left); - /* Generate the ether entry format and use the normal parser */ if (NISENTRYLEN (0, 0, result) +1 > room_left) { @@ -106,32 +78,47 @@ _nss_nisplus_parse_etherent (nis_result *result, struct etherent *ether, } strncpy (p, NISENTRYVAL (0, 0, result), NISENTRYLEN (0, 0, result)); room_left -= (NISENTRYLEN (0, 0, result) +1); + ether->e_name = p; + + ether->e_addr = *ether_aton (NISENTRYVAL (0, 1, result)); + + return 1; +} - if (NISENTRYLEN (0, 1, result) +1 > room_left) +static enum nss_status +_nss_create_tablename (void) +{ + if (tablename_val == NULL) { - __set_errno (ERANGE); - return 0; - } - strcat (p, "\t"); - strncat (p, NISENTRYVAL (0, 1, result), NISENTRYLEN (0, 1, result)); - room_left -= (NISENTRYLEN (0, 1, result) + 1); + char buf [40 + strlen (nis_local_directory ())]; + char *p; - return _nss_files_parse_etherent (p,ether, data, buflen); + p = stpcpy (buf, "ethers.org_dir."); + p = stpcpy (p, nis_local_directory ()); + tablename_val = strdup (buf); + if (tablename_val == NULL) + return NSS_STATUS_TRYAGAIN; + tablename_len = strlen (tablename_val); + } + return NSS_STATUS_SUCCESS; } + enum nss_status _nss_nisplus_setetherent (void) { + enum nss_status status; + + status = NSS_STATUS_SUCCESS; + __libc_lock_lock (lock); if (result) nis_freeresult (result); result = NULL; - if (names) - { - nis_freenames (names); - names = NULL; - } + + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + status = NSS_STATUS_UNAVAIL; __libc_lock_unlock (lock); @@ -146,11 +133,6 @@ _nss_nisplus_endetherent (void) if (result) nis_freeresult (result); result = NULL; - if (names) - { - nis_freenames (names); - names = NULL; - } __libc_lock_unlock (lock); @@ -163,16 +145,16 @@ internal_nisplus_getetherent_r (struct etherent *ether, char *buffer, { int parse_res; + if (tablename_val == NULL) + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; + /* Get the next entry until we found a correct one. */ do { if (result == NULL) { - names = nis_getnames("ethers.org_dir"); - if (names == NULL || names[0] == NULL) - return NSS_STATUS_UNAVAIL; - - result = nis_first_entry(names[0]); + result = nis_first_entry(tablename_val); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) return niserr2nss (result->status); } @@ -180,7 +162,7 @@ internal_nisplus_getetherent_r (struct etherent *ether, char *buffer, { nis_result *res2; - res2 = nis_next_entry(names[0], &result->cookie); + res2 = nis_next_entry(tablename_val, &result->cookie); nis_freeresult (result); result = res2; if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) @@ -214,16 +196,20 @@ _nss_nisplus_gethostton_r (const char *name, struct etherent *eth, { int parse_res; + if (tablename_val == NULL) + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; + if (name == NULL) return NSS_STATUS_NOTFOUND; else { nis_result *result; - char buf[strlen (name) + 255]; + char buf[strlen (name) + 40 + tablename_len]; - sprintf(buf, "[name=%s],ethers.org_dir", name); + sprintf(buf, "[name=%s],%s", name, tablename_val); - result = nis_list(buf, EXPAND_NAME, NULL, NULL); + result = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) return niserr2nss (result->status); @@ -245,34 +231,40 @@ _nss_nisplus_getntohost_r (const struct ether_addr *addr, struct etherent *eth, char *buffer, size_t buflen) { - int parse_res; - nis_result *result; - char buf[255]; + if (tablename_val == NULL) + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; if (addr == NULL) { __set_errno (EINVAL); return NSS_STATUS_UNAVAIL; } + else + { + int parse_res; + nis_result *result; + char buf[255 + tablename_len]; - memset (&buf, '\0', sizeof (buf)); - snprintf(buf, sizeof (buf), "[addr=%x:%x:%x:%x:%x:%x],ethers.org_dir", - addr->ether_addr_octet[0], addr->ether_addr_octet[1], - addr->ether_addr_octet[2], addr->ether_addr_octet[3], - addr->ether_addr_octet[4], addr->ether_addr_octet[5]); + memset (&buf, '\0', sizeof (buf)); + snprintf(buf, sizeof (buf), "[addr=%x:%x:%x:%x:%x:%x],ethers.org_dir", + addr->ether_addr_octet[0], addr->ether_addr_octet[1], + addr->ether_addr_octet[2], addr->ether_addr_octet[3], + addr->ether_addr_octet[4], addr->ether_addr_octet[5]); - result = nis_list(buf, EXPAND_NAME, NULL, NULL); + result = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - return niserr2nss (result->status); + if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) + return niserr2nss (result->status); - parse_res = _nss_nisplus_parse_etherent (result, eth, buffer, buflen); + parse_res = _nss_nisplus_parse_etherent (result, eth, buffer, buflen); - if (parse_res) - return NSS_STATUS_SUCCESS; + if (parse_res) + return NSS_STATUS_SUCCESS; - if (!parse_res && errno == ERANGE) - return NSS_STATUS_TRYAGAIN; - else - return NSS_STATUS_NOTFOUND; + if (!parse_res && errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; + } } diff --git a/nis/nss_nisplus/nisplus-grp.c b/nis/nss_nisplus/nisplus-grp.c index bf851e0cea..f759f61ca0 100644 --- a/nis/nss_nisplus/nisplus-grp.c +++ b/nis/nss_nisplus/nisplus-grp.c @@ -27,143 +27,66 @@ #include <rpcsvc/nislib.h> #include "nss-nisplus.h" +#include "nisplus-parser.h" __libc_lock_define_initialized (static, lock); static nis_result *result = NULL; -static nis_name *names = NULL; +static unsigned long next_entry = 0; +static nis_name tablename_val = NULL; +static u_long tablename_len = 0; -#define NISENTRYVAL(idx,col,res) \ -((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) - -#define NISENTRYLEN(idx,col,res) \ - ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) - -int -_nss_nisplus_parse_grent (nis_result * result, struct group *gr, - char *buffer, size_t buflen) +static enum nss_status +_nss_create_tablename (void) { - char *first_unused = buffer; - size_t room_left = buflen; - char *line; - int count; - - if (result == NULL) - return 0; - - if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) || - result->objects.objects_len != 1 || - result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ || - strcmp (result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type, - "group_tbl") != 0 || - result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 4) - return 0; - - if (NISENTRYLEN (0, 0, result) >= room_left) + if (tablename_val == NULL) { - /* The line is too long for our buffer. */ - no_more_room: - __set_errno (ERANGE); - return 0; + char buf [40 + strlen (nis_local_directory ())]; + char *p; + + p = stpcpy (buf, "group.org_dir."); + p = stpcpy (p, nis_local_directory ()); + tablename_val = strdup (buf); + if (tablename_val == NULL) + return NSS_STATUS_TRYAGAIN; + tablename_len = strlen (tablename_val); } + return NSS_STATUS_SUCCESS; +} - strncpy (first_unused, NISENTRYVAL (0, 0, result), - NISENTRYLEN (0, 0, result)); - first_unused[NISENTRYLEN (0, 0, result)] = '\0'; - gr->gr_name = first_unused; - room_left -= (strlen (first_unused) + 1); - first_unused += strlen (first_unused) + 1; - - if (NISENTRYLEN (0, 1, result) >= room_left) - goto no_more_room; - - strncpy (first_unused, NISENTRYVAL (0, 1, result), - NISENTRYLEN (0, 1, result)); - first_unused[NISENTRYLEN (0, 1, result)] = '\0'; - gr->gr_passwd = first_unused; - room_left -= (strlen (first_unused) + 1); - first_unused += strlen (first_unused) + 1; - - if (NISENTRYLEN (0, 2, result) >= room_left) - goto no_more_room; - - strncpy (first_unused, NISENTRYVAL (0, 2, result), - NISENTRYLEN (0, 2, result)); - first_unused[NISENTRYLEN (0, 2, result)] = '\0'; - gr->gr_gid = atoi (first_unused); - room_left -= (strlen (first_unused) + 1); - first_unused += strlen (first_unused) + 1; - - if (NISENTRYLEN (0, 3, result) >= room_left) - goto no_more_room; - - strncpy (first_unused, NISENTRYVAL (0, 3, result), - NISENTRYLEN (0, 3, result)); - first_unused[NISENTRYLEN (0, 3, result)] = '\0'; - line = first_unused; - room_left -= (strlen (line) + 1); - first_unused += strlen (line) + 1; - /* Adjust the pointer so it is aligned for - storing pointers. */ - first_unused += __alignof__ (char *) - 1; - first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *)); - gr->gr_mem = (char **) first_unused; - - count = 0; - while (*line != '\0') - { - /* Skip leading blanks. */ - while (isspace (*line)) - ++line; - - if (*line == '\0') - break; - - if (room_left < sizeof (char *)) - goto no_more_room; - room_left -= sizeof (char *); - gr->gr_mem[count] = line; +static enum nss_status +internal_setgrent (void) +{ + if (result) + nis_freeresult (result); + result = NULL; + next_entry = 0; - while (*line != '\0' && *line != ',' && !isspace(*line)) - ++line; + if (tablename_val == NULL) + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; - if (line != gr->gr_mem[count]) - { - if (*line != '\0') - { - *line = '\0'; - ++line; - } - ++count; - } - else - gr->gr_mem[count] = NULL; + result = nis_list (tablename_val, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL); + if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) + { + nis_freeresult (result); + result = NULL; } - if (room_left < sizeof (char *)) - goto no_more_room; - room_left -= sizeof (char *); - gr->gr_mem[count] = NULL; - - return 1; + return niserr2nss (result->status); } enum nss_status _nss_nisplus_setgrent (void) { + enum nss_status status; + __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; - if (names) - { - nis_freenames (names); - names = NULL; - } + status = internal_setgrent (); __libc_lock_unlock (lock); - return NSS_STATUS_SUCCESS; + return status; } enum nss_status @@ -174,11 +97,6 @@ _nss_nisplus_endgrent (void) if (result) nis_freeresult (result); result = NULL; - if (names) - { - nis_freenames (names); - names = NULL; - } __libc_lock_unlock (lock); @@ -190,31 +108,18 @@ internal_nisplus_getgrent_r (struct group *gr, char *buffer, size_t buflen) { int parse_res; + if (result == NULL) + internal_setgrent (); + /* Get the next entry until we found a correct one. */ do { - if (result == NULL) - { - names = nis_getnames ("group.org_dir"); - if (names == NULL || names[0] == NULL) - return NSS_STATUS_UNAVAIL; - - result = nis_first_entry (names[0]); - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - return niserr2nss (result->status); - } - else - { - nis_result *res; - - res = nis_next_entry (names[0], &result->cookie); - nis_freeresult (result); - result = res; - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - return niserr2nss (result->status); - } + if (next_entry >= result->objects.objects_len) + return NSS_STATUS_NOTFOUND; - parse_res = _nss_nisplus_parse_grent (result, gr, buffer, buflen); + parse_res = _nss_nisplus_parse_grent (result, next_entry, gr, + buffer, buflen); + ++next_entry; } while (!parse_res); @@ -241,16 +146,20 @@ _nss_nisplus_getgrnam_r (const char *name, struct group *gr, { int parse_res; + if (tablename_val == NULL) + if (_nss_create_tablename() != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; + if (name == NULL || strlen (name) > 8) return NSS_STATUS_NOTFOUND; else { nis_result *result; - char buf[strlen (name) + 24]; + char buf[strlen (name) + 24 + tablename_len]; - sprintf (buf, "[name=%s],group.org_dir", name); + sprintf (buf, "[name=%s],%s", name, tablename_val); - result = nis_list (buf, EXPAND_NAME, NULL, NULL); + result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) { @@ -260,7 +169,7 @@ _nss_nisplus_getgrnam_r (const char *name, struct group *gr, return status; } - parse_res = _nss_nisplus_parse_grent (result, gr, buffer, buflen); + parse_res = _nss_nisplus_parse_grent (result, 0, gr, buffer, buflen); nis_freeresult (result); @@ -278,31 +187,37 @@ enum nss_status _nss_nisplus_getgrgid_r (const gid_t gid, struct group *gr, char *buffer, size_t buflen) { - int parse_res; - nis_result *result; - char buf[36]; + if (tablename_val == NULL) + if (_nss_create_tablename() != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; - sprintf (buf, "[gid=%d],group.org_dir", gid); + { + int parse_res; + nis_result *result; + char buf[36 + tablename_len]; - result = nis_list (buf, EXPAND_NAME, NULL, NULL); + sprintf (buf, "[gid=%d],%s", gid, tablename_val); - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - { - enum nss_status status = niserr2nss (result->status); + result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - nis_freeresult (result); - return status; - } + if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) + { + enum nss_status status = niserr2nss (result->status); + + nis_freeresult (result); + return status; + } - parse_res = _nss_nisplus_parse_grent (result, gr, buffer, buflen); + parse_res = _nss_nisplus_parse_grent (result, 0, gr, buffer, buflen); - nis_freeresult (result); + nis_freeresult (result); - if (parse_res) - return NSS_STATUS_SUCCESS; + if (parse_res) + return NSS_STATUS_SUCCESS; - if (!parse_res && errno == ERANGE) - return NSS_STATUS_TRYAGAIN; - else - return NSS_STATUS_NOTFOUND; + if (!parse_res && errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; + } } diff --git a/nis/nss_nisplus/nisplus-hosts.c b/nis/nss_nisplus/nisplus-hosts.c index ee87a78225..19f9161076 100644 --- a/nis/nss_nisplus/nisplus-hosts.c +++ b/nis/nss_nisplus/nisplus-hosts.c @@ -33,13 +33,14 @@ __libc_lock_define_initialized (static, lock) static nis_result *result = NULL; -static nis_name *names = NULL; +static nis_name tablename_val = NULL; +static u_long tablename_len = 0; #define NISENTRYVAL(idx,col,res) \ - ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) + ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) #define NISENTRYLEN(idx,col,res) \ - ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) + ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) /* Get implementation for some internal functions. */ #include "../../resolv/mapv4v6addr.h" @@ -57,10 +58,10 @@ _nss_nisplus_parse_hostent (nis_result *result, int af, struct hostent *host, return 0; if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) || - result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ || - strcmp(result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type, - "hosts_tbl") != 0 || - result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 4) + __type_of (result->objects.objects_val) != ENTRY_OBJ || + strcmp(result->objects.objects_val[0].EN_data.en_type, + "hosts_tbl") != 0 || + result->objects.objects_val[0].EN_data.en_cols.en_cols_len < 4) return 0; if (room_left < NISENTRYLEN (0, 2, result) + 1) @@ -162,37 +163,58 @@ _nss_nisplus_parse_hostent (nis_result *result, int af, struct hostent *host, host->h_aliases[i] = line; while (*line != '\0' && *line != ' ') - line++; + ++line; - if (line != host->h_aliases[i]) - { - *line = '\0'; - line++; - i++; - } + if (*line == ' ') + { + *line = '\0'; + ++line; + ++i; + } + else + host->h_aliases[i+1] = NULL; } return 1; } +static enum nss_status +_nss_create_tablename (void) +{ + if (tablename_val == NULL) + { + char buf [40 + strlen (nis_local_directory ())]; + char *p; + + p = stpcpy (buf, "hosts.org_dir."); + p = stpcpy (p, nis_local_directory ()); + tablename_val = strdup (buf); + if (tablename_val == NULL) + return NSS_STATUS_TRYAGAIN; + tablename_len = strlen (tablename_val); + } + return NSS_STATUS_SUCCESS; +} + enum nss_status _nss_nisplus_sethostent (void) { + enum nss_status status = NSS_STATUS_SUCCESS; + __libc_lock_lock (lock); if (result) nis_freeresult (result); result = NULL; - if (names) - { - nis_freenames (names); - names = NULL; - } + + if (tablename_val == NULL) + if (_nss_create_tablename() != NSS_STATUS_SUCCESS) + status = NSS_STATUS_UNAVAIL; __libc_lock_unlock (lock); - return NSS_STATUS_SUCCESS; + return status; } enum nss_status @@ -203,11 +225,6 @@ _nss_nisplus_endhostent (void) if (result) nis_freeresult (result); result = NULL; - if (names) - { - nis_freenames (names); - names = NULL; - } __libc_lock_unlock (lock); @@ -225,11 +242,11 @@ internal_nisplus_gethostent_r (struct hostent *host, char *buffer, { if (result == NULL) { - names = nis_getnames("hosts.org_dir"); - if (names == NULL || names[0] == NULL) - return NSS_STATUS_UNAVAIL; + if (tablename_val == NULL) + if (_nss_create_tablename() != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; - result = nis_first_entry(names[0]); + result = nis_first_entry(tablename_val); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) { int retval; @@ -248,7 +265,7 @@ internal_nisplus_gethostent_r (struct hostent *host, char *buffer, { nis_result *res2; - res2 = nis_next_entry(names[0], &result->cookie); + res2 = nis_next_entry(tablename_val, &result->cookie); nis_freeresult (result); result = res2; if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) @@ -302,6 +319,13 @@ _nss_nisplus_gethostbyname2_r (const char *name, int af, struct hostent *host, { int parse_res, retval; + if (tablename_val == NULL) + if (_nss_create_tablename() != NSS_STATUS_SUCCESS) + { + *herrnop = NETDB_INTERNAL; + return NSS_STATUS_UNAVAIL; + } + if (name == NULL) { __set_errno (EINVAL); @@ -311,28 +335,27 @@ _nss_nisplus_gethostbyname2_r (const char *name, int af, struct hostent *host, else { nis_result *result; - char buf[strlen (name) + 255]; + char buf[strlen (name) + 255 + tablename_len]; /* Search at first in the alias list, and use the correct name for the next search */ - sprintf(buf, "[name=%s],hosts.org_dir", name); - result = nis_list(buf, EXPAND_NAME, NULL, NULL); + sprintf(buf, "[name=%s],%s", name, tablename_val); + result = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); /* If we do not find it, try it as original name. But if the database is correct, we should find it in the first case, too */ - if ((result->status != NIS_SUCCESS && - result->status != NIS_S_SUCCESS) || - result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ || - strcmp(result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type, + if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) || + __type_of (result->objects.objects_val) != ENTRY_OBJ || + strcmp(result->objects.objects_val->EN_data.en_type, "hosts_tbl") != 0 || - result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len - < 3) - sprintf(buf, "[cname=%s],hosts.org_dir", name); + result->objects.objects_val->EN_data.en_cols.en_cols_len < 3) + sprintf(buf, "[cname=%s],%s", name, tablename_val); else - sprintf(buf, "[cname=%s],hosts.org_dir", NISENTRYVAL(0, 0, result)); + sprintf(buf, "[cname=%s],%s", NISENTRYVAL(0, 0, result), + tablename_val); nis_freeresult (result); - result = nis_list(buf, EXPAND_NAME, NULL, NULL); + result = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); retval = niserr2nss (result->status); if (retval != NSS_STATUS_SUCCESS) @@ -385,17 +408,21 @@ _nss_nisplus_gethostbyaddr_r (const char *addr, int addrlen, int type, struct hostent *host, char *buffer, size_t buflen, int *herrnop) { + if (tablename_val == NULL) + if (_nss_create_tablename() != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; + if (addr == NULL) return NSS_STATUS_NOTFOUND; else { nis_result *result; - char buf[1025]; + char buf[255 + tablename_len]; int retval, parse_res; - snprintf(buf, sizeof (buf) -1, "[addr=%s],hosts.org_dir", - inet_ntoa (*(struct in_addr *)addr)); - result = nis_list(buf, EXPAND_NAME, NULL, NULL); + snprintf(buf, sizeof (buf) -1, "[addr=%s],%s", + inet_ntoa (*(struct in_addr *)addr), tablename_val); + result = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); retval = niserr2nss (result->status); if (retval != NSS_STATUS_SUCCESS) diff --git a/nis/nss_nisplus/nisplus-netgrp.c b/nis/nss_nisplus/nisplus-netgrp.c index 5907882725..670d0bb4ed 100644 --- a/nis/nss_nisplus/nisplus-netgrp.c +++ b/nis/nss_nisplus/nisplus-netgrp.c @@ -36,10 +36,10 @@ static unsigned long data_size = 0; static unsigned long position = 0; #define NISENTRYVAL(idx,col,res) \ - ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) + ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) #define NISENTRYLEN(idx,col,res) \ - ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) + ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) static enum nss_status _nss_nisplus_parse_netgroup (struct __netgrent *result, char *buffer, @@ -49,8 +49,7 @@ _nss_nisplus_parse_netgroup (struct __netgrent *result, char *buffer, /* Some sanity checks. */ if (data == NULL || data_size == 0) - /* User bug. setnetgrent() wasn't called before. */ - abort (); + return NSS_STATUS_NOTFOUND; if (position == data_size) return result->first ? NSS_STATUS_NOTFOUND : NSS_STATUS_RETURN; @@ -154,9 +153,9 @@ _nss_nisplus_setnetgrent (char *group) position = 0; } - sprintf(buf, "[name=%s],netgroup.org_dir", group); + sprintf (buf, "[name=%s],netgroup.org_dir", group); - data = nis_list(buf, EXPAND_NAME, NULL, NULL); + data = nis_list (buf, EXPAND_NAME, NULL, NULL); if (niserr2nss (data->status) != NSS_STATUS_SUCCESS) { diff --git a/nis/nss_nisplus/nisplus-network.c b/nis/nss_nisplus/nisplus-network.c index 8d6e08b2c6..9a46397149 100644 --- a/nis/nss_nisplus/nisplus-network.c +++ b/nis/nss_nisplus/nisplus-network.c @@ -29,109 +29,160 @@ #include "nss-nisplus.h" -/* Get the declaration of the parser function. */ -#define ENTNAME netent -#define DATABASE "networks" -#define TRAILING_LIST_MEMBER n_aliases -#define TRAILING_LIST_SEPARATOR_P isspace -#include "../nss/nss_files/files-parse.c" -LINE_PARSER -("#", - { - char *addr; - - STRING_FIELD (result->n_name, isspace, 1); - - STRING_FIELD (addr, isspace, 1); - result->n_net = inet_network (addr); - - }) - __libc_lock_define_initialized (static, lock) static nis_result *result = NULL; -static nis_name *names = NULL; +static nis_name tablename_val = NULL; +static u_long tablename_len = 0; #define NISENTRYVAL(idx,col,res) \ - ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) + ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) #define NISENTRYLEN(idx,col,res) \ - ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) + ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) static int _nss_nisplus_parse_netent (nis_result *result, struct netent *network, char *buffer, size_t buflen) { - char *p = buffer; + char *first_unused = buffer; size_t room_left = buflen; unsigned int i; - struct parser_data *data = (void *) buffer; + char *p, *line; if (result == NULL) return 0; if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) || - result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ || - strcmp(result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type, + __type_of (result->objects.objects_val) != ENTRY_OBJ || + strcmp(result->objects.objects_val[0].EN_data.en_type, "networks_tbl") != 0 || - result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 3) + result->objects.objects_val[0].EN_data.en_cols.en_cols_len < 3) return 0; - /* Generate the network entry format and use the normal parser */ - if (NISENTRYLEN (0, 0, result) +1 > room_left) + if (NISENTRYLEN(0, 0, result) >= room_left) { + /* The line is too long for our buffer. */ + no_more_room: __set_errno (ERANGE); return 0; } - memset (p, '\0', room_left); + strncpy (first_unused, NISENTRYVAL(0, 0, result), + NISENTRYLEN (0, 0, result)); + first_unused[NISENTRYLEN(0, 0, result)] = '\0'; + network->n_name = first_unused; + room_left -= (strlen (first_unused) +1); + first_unused += strlen (first_unused) +1; + network->n_addrtype = 0; + network->n_net = inet_network (NISENTRYVAL (0, 2, result)); + p = first_unused; + + line = p; + for (i = 0; i < result->objects.objects_len; i++) + { + if (strcmp (NISENTRYVAL (i, 1, result), network->n_name) != 0) + { + if (NISENTRYLEN (i, 1, result) + 2 > room_left) + { + __set_errno (ERANGE); + return 0; + } + p = stpcpy(p, " "); + p = stpncpy (p, NISENTRYVAL (i, 1, result), + NISENTRYLEN (i, 1, result)); + *p = '\0'; + room_left -= (NISENTRYLEN (i, 1, result) + 1); + } + } + ++p; + first_unused = p; + + /* Adjust the pointer so it is aligned for + storing pointers. */ + first_unused += __alignof__ (char *) - 1; + first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *)); + network->n_aliases = (char **) first_unused; + if (room_left < 2 * sizeof (char *)) + goto no_more_room; + room_left -= (2 * sizeof (char *)); + network->n_aliases[0] = NULL; + + i = 0; + while (*line != '\0') + { + /* Skip leading blanks. */ + while (isspace (*line)) + line++; - strncpy (p, NISENTRYVAL (0, 0, result), NISENTRYLEN (0, 0, result)); - room_left -= (NISENTRYLEN (0, 0, result) +1); + if (*line == '\0') + break; - if (NISENTRYLEN (0, 2, result) +1 > room_left) - { - __set_errno (ERANGE); - return 0; + if (room_left < sizeof (char *)) + { + __set_errno (ERANGE); + return 0; + } + + room_left -= sizeof (char *); + network->n_aliases[i] = line; + + while (*line != '\0' && *line != ' ') + ++line; + + if (line != network->n_aliases[i]) + { + if (*line != '\0') + { + *line = '\0'; + ++line; + } + ++i; + } + else + network->n_aliases[i] = NULL; } - strcat (p, "\t"); - strncat (p, NISENTRYVAL (0, 2, result), NISENTRYLEN (0, 2, result)); - room_left -= (NISENTRYLEN (0, 2, result) + 1); - /* + 1: We overwrite the last \0 */ - for (i = 1; i < result->objects.objects_len; i++) + return 1; +} + +static enum nss_status +_nss_create_tablename (void) +{ + if (tablename_val == NULL) { - if (NISENTRYLEN (i, 1, result) +1 > room_left) - { - __set_errno (ERANGE); - return 0; - } - strcat (p, " "); - strncat (p, NISENTRYVAL (i, 1, result), NISENTRYLEN (i, 1, result)); - room_left -= (NISENTRYLEN (i, 1, result) + 1); + char buf [40 + strlen (nis_local_directory ())]; + char *p; + + p = stpcpy (buf, "networks.org_dir."); + p = stpcpy (p, nis_local_directory ()); + tablename_val = strdup (buf); + if (tablename_val == NULL) + return NSS_STATUS_TRYAGAIN; + tablename_len = strlen (tablename_val); } - - return _nss_files_parse_netent (p, network, data, buflen); + return NSS_STATUS_SUCCESS; } enum nss_status _nss_nisplus_setnetent (void) { + enum nss_status status = NSS_STATUS_SUCCESS; + __libc_lock_lock (lock); if (result) nis_freeresult (result); result = NULL; - if (names) - { - nis_freenames (names); - names = NULL; - } + + if (tablename_val == NULL) + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + status = NSS_STATUS_UNAVAIL; __libc_lock_unlock (lock); - return NSS_STATUS_SUCCESS; + return status; } enum nss_status @@ -142,11 +193,6 @@ _nss_nisplus_endnetent (void) if (result) nis_freeresult (result); result = NULL; - if (names) - { - nis_freenames (names); - names = NULL; - } __libc_lock_unlock (lock); @@ -164,11 +210,11 @@ internal_nisplus_getnetent_r (struct netent *network, char *buffer, { if (result == NULL) { - names = nis_getnames("networks.org_dir"); - if (names == NULL || names[0] == NULL) - return NSS_STATUS_UNAVAIL; + if (tablename_val == NULL) + if (_nss_create_tablename() != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; - result = nis_first_entry(names[0]); + result = nis_first_entry(tablename_val); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) { int retval; @@ -178,15 +224,17 @@ internal_nisplus_getnetent_r (struct netent *network, char *buffer, { *herrnop = NETDB_INTERNAL; __set_errno (EAGAIN); + return retval; } - return retval; + else + return retval; } } else { nis_result *res; - res = nis_next_entry(names[0], &result->cookie); + res = nis_next_entry(tablename_val, &result->cookie); nis_freeresult (result); result = res; if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) @@ -236,6 +284,10 @@ _nss_nisplus_getnetbyname_r (const char *name, struct netent *network, { int parse_res, retval; + if (tablename_val == NULL) + if (_nss_create_tablename() != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; + if (name == NULL) { __set_errno (EINVAL); @@ -245,28 +297,28 @@ _nss_nisplus_getnetbyname_r (const char *name, struct netent *network, else { nis_result *result; - char buf[strlen (name) + 255]; - + char buf[strlen (name) + 255 + tablename_len]; /* Search at first in the alias list, and use the correct name for the next search */ - sprintf(buf, "[name=%s],networks.org_dir", name); - result = nis_list(buf, EXPAND_NAME, NULL, NULL); + sprintf(buf, "[name=%s],%s", name, tablename_val); + result = nis_list(buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL); /* If we do not find it, try it as original name. But if the database is correct, we should find it in the first case, too */ if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) || - result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ || - strcmp(result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type, + __type_of (result->objects.objects_val) != ENTRY_OBJ || + strcmp(result->objects.objects_val[0].EN_data.en_type, "networks_tbl") != 0 || - result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 3) - sprintf(buf, "[cname=%s],networks.org_dir", name); + result->objects.objects_val[0].EN_data.en_cols.en_cols_len < 3) + sprintf(buf, "[cname=%s],%s", name, tablename_val); else - sprintf(buf, "[cname=%s],networks.org_dir", NISENTRYVAL(0, 0, result)); + sprintf(buf, "[cname=%s],%s", NISENTRYVAL(0, 0, result), + tablename_val); nis_freeresult (result); - result = nis_list(buf, EXPAND_NAME, NULL, NULL); + result = nis_list(buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL); retval = niserr2nss (result->status); if (retval != NSS_STATUS_SUCCESS) @@ -301,39 +353,45 @@ _nss_nisplus_getnetbyaddr_r (const unsigned long addr, const int type, struct netent *network, char *buffer, size_t buflen, int *herrnop) { - int parse_res, retval; - nis_result *result; - char buf[1024]; - struct in_addr in; + if (tablename_val == NULL) + if (_nss_create_tablename() != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; - in = inet_makeaddr (addr, 0); - snprintf(buf, sizeof (buf) - 1, "[addr=%s],networks.org_dir", - inet_ntoa (in)); + { + int parse_res, retval; + nis_result *result; + char buf[1024 + tablename_len]; + struct in_addr in; - result = nis_list(buf, EXPAND_NAME, NULL, NULL); + in = inet_makeaddr (addr, 0); + snprintf(buf, sizeof (buf) - 1, "[addr=%s],%s", + inet_ntoa (in), tablename_len); - retval = niserr2nss (result->status); - if (retval != NSS_STATUS_SUCCESS) - { - if (retval == NSS_STATUS_TRYAGAIN) - { - __set_errno (EAGAIN); - *herrnop = NETDB_INTERNAL; - } - nis_freeresult (result); - return retval; - } + result = nis_list(buf, EXPAND_NAME, NULL, NULL); - parse_res = _nss_nisplus_parse_netent (result, network, buffer, buflen); + retval = niserr2nss (result->status); + if (retval != NSS_STATUS_SUCCESS) + { + if (retval == NSS_STATUS_TRYAGAIN) + { + __set_errno (EAGAIN); + *herrnop = NETDB_INTERNAL; + } + nis_freeresult (result); + return retval; + } - nis_freeresult (result); + parse_res = _nss_nisplus_parse_netent (result, network, buffer, buflen); - if (parse_res) - return NSS_STATUS_SUCCESS; + nis_freeresult (result); - *herrnop = NETDB_INTERNAL; - if (!parse_res && errno == ERANGE) - return NSS_STATUS_TRYAGAIN; - else - return NSS_STATUS_NOTFOUND; + if (parse_res) + return NSS_STATUS_SUCCESS; + + *herrnop = NETDB_INTERNAL; + if (!parse_res && errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; + } } diff --git a/nis/nss_nisplus/nisplus-parser.c b/nis/nss_nisplus/nisplus-parser.c new file mode 100644 index 0000000000..bb6bba1e3e --- /dev/null +++ b/nis/nss_nisplus/nisplus-parser.c @@ -0,0 +1,337 @@ +/* Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <pwd.h> +#include <ctype.h> +#include <errno.h> +#include <string.h> +#include <rpcsvc/nis.h> + +#include "nisplus-parser.h" + +#define NISENTRYVAL(idx,col,res) \ + ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) + +#define NISENTRYLEN(idx,col,res) \ + ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) + + +int +_nss_nisplus_parse_pwent (nis_result *result, struct passwd *pw, + char *buffer, size_t buflen) +{ + char *first_unused = buffer; + size_t room_left = buflen; + + if (result == NULL) + return 0; + + if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) || + result->objects.objects_len != 1 || + __type_of (result->objects.objects_val) != ENTRY_OBJ || + strcmp(result->objects.objects_val->EN_data.en_type, + "passwd_tbl") != 0 || + result->objects.objects_val->EN_data.en_cols.en_cols_len < 7) + return 0; + + if (NISENTRYLEN (0, 0, result) >= room_left) + { + /* The line is too long for our buffer. */ + no_more_room: + __set_errno (ERANGE); + return 0; + } + + strncpy (first_unused, NISENTRYVAL(0, 0, result), + NISENTRYLEN (0, 0, result)); + first_unused[NISENTRYLEN(0, 0, result)] = '\0'; + pw->pw_name = first_unused; + room_left -= (strlen (first_unused) +1); + first_unused += strlen (first_unused) +1; + + if (NISENTRYLEN(0, 1, result) >= room_left) + goto no_more_room; + + strncpy (first_unused, NISENTRYVAL(0, 1, result), + NISENTRYLEN (0, 1, result)); + first_unused[NISENTRYLEN(0, 1, result)] = '\0'; + pw->pw_passwd = first_unused; + room_left -= (strlen (first_unused) +1); + first_unused += strlen (first_unused) +1; + + if (NISENTRYLEN(0, 2, result) >= room_left) + goto no_more_room; + + strncpy (first_unused, NISENTRYVAL (0, 2, result), + NISENTRYLEN (0, 2, result)); + first_unused[NISENTRYLEN(0, 2, result)] = '\0'; + pw->pw_uid = atoi (first_unused); + room_left -= (strlen (first_unused) +1); + first_unused += strlen (first_unused) +1; + + if (NISENTRYLEN(0, 3, result) >= room_left) + goto no_more_room; + + strncpy (first_unused, NISENTRYVAL(0, 3, result), + NISENTRYLEN (0, 3, result)); + first_unused[NISENTRYLEN(0, 3, result)] = '\0'; + pw->pw_gid = atoi (first_unused); + room_left -= (strlen (first_unused) +1); + first_unused += strlen (first_unused) +1; + + if (NISENTRYLEN(0, 4, result) >= room_left) + goto no_more_room; + + strncpy (first_unused, NISENTRYVAL(0, 4, result), + NISENTRYLEN (0, 4, result)); + first_unused[NISENTRYLEN(0, 4, result)] = '\0'; + pw->pw_gecos = first_unused; + room_left -= (strlen (first_unused) +1); + first_unused += strlen (first_unused) +1; + + if (NISENTRYLEN(0, 5, result) >= room_left) + goto no_more_room; + + strncpy (first_unused, NISENTRYVAL (0, 5, result), + NISENTRYLEN (0, 5, result)); + first_unused[NISENTRYLEN(0, 5, result)] = '\0'; + pw->pw_dir = first_unused; + room_left -= (strlen (first_unused) +1); + first_unused += strlen (first_unused) +1; + + if (NISENTRYLEN(0, 6, result) >= room_left) + goto no_more_room; + + strncpy (first_unused, NISENTRYVAL (0, 6, result), + NISENTRYLEN (0, 6, result)); + first_unused[NISENTRYLEN (0, 6, result)] = '\0'; + pw->pw_shell = first_unused; + room_left -= (strlen (first_unused) +1); + first_unused += strlen (first_unused) +1; + + return 1; +} + +int +_nss_nisplus_parse_grent (nis_result *result, u_long entry, + struct group *gr, char *buffer, size_t buflen) +{ + char *first_unused = buffer; + size_t room_left = buflen; + char *line; + int count; + + if (result == NULL) + return 0; + + if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) || + __type_of(result->objects.objects_val) != ENTRY_OBJ || + strcmp (result->objects.objects_val[entry].EN_data.en_type, + "group_tbl") != 0 || + result->objects.objects_val[entry].EN_data.en_cols.en_cols_len < 4) + return 0; + + if (NISENTRYLEN (entry, 0, result) >= room_left) + { + /* The line is too long for our buffer. */ + no_more_room: + __set_errno (ERANGE); + return 0; + } + + strncpy (first_unused, NISENTRYVAL (entry, 0, result), + NISENTRYLEN (entry, 0, result)); + first_unused[NISENTRYLEN (entry, 0, result)] = '\0'; + gr->gr_name = first_unused; + room_left -= (strlen (first_unused) + 1); + first_unused += strlen (first_unused) + 1; + + if (NISENTRYLEN (entry, 1, result) >= room_left) + goto no_more_room; + + strncpy (first_unused, NISENTRYVAL (entry, 1, result), + NISENTRYLEN (entry, 1, result)); + first_unused[NISENTRYLEN (entry, 1, result)] = '\0'; + gr->gr_passwd = first_unused; + room_left -= (strlen (first_unused) + 1); + first_unused += strlen (first_unused) + 1; + + if (NISENTRYLEN (entry, 2, result) >= room_left) + goto no_more_room; + + strncpy (first_unused, NISENTRYVAL (entry, 2, result), + NISENTRYLEN (entry, 2, result)); + first_unused[NISENTRYLEN (entry, 2, result)] = '\0'; + gr->gr_gid = atoi (first_unused); + room_left -= (strlen (first_unused) + 1); + first_unused += strlen (first_unused) + 1; + + if (NISENTRYLEN (entry, 3, result) >= room_left) + goto no_more_room; + + strncpy (first_unused, NISENTRYVAL (entry, 3, result), + NISENTRYLEN (entry, 3, result)); + first_unused[NISENTRYLEN (entry, 3, result)] = '\0'; + line = first_unused; + room_left -= (strlen (line) + 1); + first_unused += strlen (line) + 1; + /* Adjust the pointer so it is aligned for + storing pointers. */ + first_unused += __alignof__ (char *) - 1; + first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *)); + gr->gr_mem = (char **) first_unused; + + count = 0; + while (*line != '\0') + { + /* Skip leading blanks. */ + while (isspace (*line)) + ++line; + + if (*line == '\0') + break; + + if (room_left < sizeof (char *)) + goto no_more_room; + room_left -= sizeof (char *); + gr->gr_mem[count] = line; + + while (*line != '\0' && *line != ',' && !isspace(*line)) + ++line; + + if (line != gr->gr_mem[count]) + { + if (*line != '\0') + { + *line = '\0'; + ++line; + } + ++count; + } + else + gr->gr_mem[count] = NULL; + } + if (room_left < sizeof (char *)) + goto no_more_room; + room_left -= sizeof (char *); + gr->gr_mem[count] = NULL; + + return 1; +} + +int +_nss_nisplus_parse_spent (nis_result *result, struct spwd *sp, + char *buffer, size_t buflen) +{ + char *first_unused = buffer; + size_t room_left = buflen; + + if (result == NULL) + return 0; + + if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) || + result->objects.objects_len != 1 || + __type_of(result->objects.objects_val) != ENTRY_OBJ || + strcmp (result->objects.objects_val->EN_data.en_type, + "passwd_tbl") != 0 || + result->objects.objects_val[0].EN_data.en_cols.en_cols_len < 8) + return 0; + + if (NISENTRYLEN(0, 0, result) >= room_left) + { + /* The line is too long for our buffer. */ + no_more_room: + __set_errno (ERANGE); + return 0; + } + + strncpy (first_unused, NISENTRYVAL (0, 0, result), + NISENTRYLEN (0, 0, result)); + first_unused[NISENTRYLEN(0, 0, result)] = '\0'; + sp->sp_namp = first_unused; + room_left -= (strlen (first_unused) +1); + first_unused += strlen (first_unused) +1; + + if (NISENTRYLEN(0, 1, result) >= room_left) + goto no_more_room; + + strncpy (first_unused, NISENTRYVAL (0, 1, result), + NISENTRYLEN (0, 1, result)); + first_unused[NISENTRYLEN(0, 1, result)] = '\0'; + sp->sp_pwdp = first_unused; + room_left -= (strlen (first_unused) +1); + first_unused += strlen (first_unused) +1; + + sp->sp_lstchg = sp->sp_min = sp->sp_max = sp->sp_warn = sp->sp_inact = + sp->sp_expire = sp->sp_flag = -1; + + if (NISENTRYLEN (0, 7, result) > 0) + { + char *line, *cp; + + line = NISENTRYVAL (0, 7, result); + cp = strchr (line, ':'); + if (cp == NULL) + return 0; + *cp++ = '\0'; + sp->sp_lstchg = atol (line); + + line = cp; + cp = strchr (line, ':'); + if (cp == NULL) + return 0; + *cp++ = '\0'; + sp->sp_min = atol(line); + + line = cp; + cp = strchr (line, ':'); + if (cp == NULL) + return 0; + *cp++ = '\0'; + sp->sp_max = atol(line); + + line = cp; + cp = strchr (line, ':'); + if (cp == NULL) + return 0; + *cp++ = '\0'; + sp->sp_warn = atol(line); + + line = cp; + cp = strchr (line, ':'); + if (cp == NULL) + return 0; + *cp++ = '\0'; + sp->sp_inact = atol(line); + + line = cp; + cp = strchr (line, ':'); + if (cp == NULL) + return 0; + *cp++ = '\0'; + sp->sp_expire = atol(line); + + line = cp; + if (line == NULL) + return 0; + sp->sp_flag = atol(line); + } + + return 1; +} diff --git a/nis/nss_nisplus/nisplus-proto.c b/nis/nss_nisplus/nisplus-proto.c index ee0341d0b9..1ee9a8944b 100644 --- a/nis/nss_nisplus/nisplus-proto.c +++ b/nis/nss_nisplus/nisplus-proto.c @@ -31,97 +31,146 @@ __libc_lock_define_initialized (static, lock) static nis_result *result = NULL; -static nis_name *names = NULL; - -#define ENTNAME protoent -#define DATABASE "protocols" -#define TRAILING_LIST_MEMBER p_aliases -#define TRAILING_LIST_SEPARATOR_P isspace -#include "../../nss/nss_files/files-parse.c" -LINE_PARSER -("#", - STRING_FIELD (result->p_name, isspace, 1); - INT_FIELD (result->p_proto, isspace, 1, 10,); -) +static nis_name tablename_val = NULL; +static u_long tablename_len = 0; #define NISENTRYVAL(idx,col,res) \ - ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) + ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) #define NISENTRYLEN(idx,col,res) \ - ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) + ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) static int _nss_nisplus_parse_protoent (nis_result * result, struct protoent *proto, char *buffer, size_t buflen) { - char *p = buffer; + char *first_unused = buffer; size_t room_left = buflen; unsigned int i; - struct parser_data *data = (void *) buffer; + char *p, *line; if (result == NULL) return 0; if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) || - result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ || - strcmp (result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type, - "protocols_tbl") != 0 || - result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 3) + __type_of (NIS_RES_OBJECT (result)) != ENTRY_OBJ || + strcmp (NIS_RES_OBJECT (result)->EN_data.en_type, "protocols_tbl") != 0 + || NIS_RES_OBJECT (result)->EN_data.en_cols.en_cols_len < 3) return 0; - memset (p, '\0', room_left); - /* Generate the protocols entry format and use the normal parser */ if (NISENTRYLEN (0, 0, result) + 1 > room_left) { + no_more_room: __set_errno (ERANGE); return 0; } - strncpy (p, NISENTRYVAL (0, 0, result), NISENTRYLEN (0, 0, result)); - room_left -= (NISENTRYLEN (0, 0, result) + 1); + strncpy (first_unused, NISENTRYVAL (0, 0, result), + NISENTRYLEN (0, 0, result)); + first_unused[NISENTRYLEN (0, 0, result)] = '\0'; + proto->p_name = first_unused; + room_left -= (strlen (first_unused) +1); + first_unused += strlen (first_unused) +1; + if (NISENTRYLEN (0, 2, result) + 1 > room_left) + goto no_more_room; + proto->p_proto = atoi (NISENTRYVAL (0, 2, result)); + p = first_unused; + + line = p; + for (i = 0; i < result->objects.objects_len; i++) { - __set_errno (ERANGE); - return 0; + if (strcmp (NISENTRYVAL (i, 1, result), proto->p_name) != 0) + { + if (NISENTRYLEN (i, 1, result) + 2 > room_left) + goto no_more_room; + p = stpcpy(p, " "); + p = stpncpy (p, NISENTRYVAL (i, 1, result), + NISENTRYLEN (i, 1, result)); + *p = '\0'; + room_left -= (NISENTRYLEN (i, 1, result) + 1); + } } - strcat (p, "\t"); - strncat (p, NISENTRYVAL (0, 2, result), NISENTRYLEN (0, 2, result)); - room_left -= (NISENTRYLEN (0, 2, result) + 1); - /* + 1: We overwrite the last \0 */ - - for (i = 1; i < result->objects.objects_len; i++) + ++p; + first_unused = p; + + /* Adjust the pointer so it is aligned for + storing pointers. */ + first_unused += __alignof__ (char *) - 1; + first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *)); + proto->p_aliases = (char **) first_unused; + if (room_left < sizeof (char *)) + goto no_more_room; + room_left -= (sizeof (char *)); + proto->p_aliases[0] = NULL; + + i = 0; + while (*line != '\0') { - if (NISENTRYLEN (i, 1, result) + 1 > room_left) - { - __set_errno (ERANGE); - return 0; - } - strcat (p, " "); - strncat (p, NISENTRYVAL (i, 1, result), NISENTRYLEN (i, 1, result)); - room_left -= (NISENTRYLEN (i, 1, result) + 1); + /* Skip leading blanks. */ + while (isspace (*line)) + line++; + if (*line == '\0') + break; + + if (room_left < sizeof (char *)) + goto no_more_room; + + room_left -= sizeof (char *); + proto->p_aliases[i] = line; + + while (*line != '\0' && *line != ' ') + ++line; + + if (*line == ' ') + { + *line = '\0'; + ++line; + ++i; + } + else + proto->p_aliases[i+1] = NULL; } - return _nss_files_parse_protoent (p, proto, data, buflen); + return 1; +} + +static enum nss_status +_nss_create_tablename (void) +{ + if (tablename_val == NULL) + { + char buf [40 + strlen (nis_local_directory ())]; + char *p; + + p = stpcpy (buf, "protocols.org_dir."); + p = stpcpy (p, nis_local_directory ()); + tablename_val = strdup (buf); + if (tablename_val == NULL) + return NSS_STATUS_TRYAGAIN; + tablename_len = strlen (tablename_val); + } + return NSS_STATUS_SUCCESS; } enum nss_status _nss_nisplus_setprotoent (void) { + enum nss_status status = NSS_STATUS_SUCCESS; + __libc_lock_lock (lock); if (result) nis_freeresult (result); result = NULL; - if (names) - { - nis_freenames (names); - names = NULL; - } + + if (tablename_val == NULL) + status = _nss_create_tablename (); __libc_lock_unlock (lock); - return NSS_STATUS_SUCCESS; + return status; } enum nss_status @@ -132,11 +181,6 @@ _nss_nisplus_endprotoent (void) if (result) nis_freeresult (result); result = NULL; - if (names) - { - nis_freenames (names); - names = NULL; - } __libc_lock_unlock (lock); @@ -154,11 +198,11 @@ internal_nisplus_getprotoent_r (struct protoent *proto, char *buffer, { if (result == NULL) { - names = nis_getnames ("protocols.org_dir"); - if (names == NULL || names[0] == NULL) - return NSS_STATUS_UNAVAIL; + if (tablename_val == NULL) + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; - result = nis_first_entry (names[0]); + result = nis_first_entry (tablename_val); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) return niserr2nss (result->status); } @@ -166,7 +210,7 @@ internal_nisplus_getprotoent_r (struct protoent *proto, char *buffer, { nis_result *res; - res = nis_next_entry (names[0], &result->cookie); + res = nis_next_entry (tablename_val, &result->cookie); nis_freeresult (result); result = res; @@ -202,32 +246,37 @@ _nss_nisplus_getprotobyname_r (const char *name, struct protoent *proto, { int parse_res; + if (tablename_val == NULL) + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; + if (name == NULL) return NSS_STATUS_NOTFOUND; else { nis_result *result; - char buf[strlen (name) + 255]; + char buf[strlen (name) + 255 + tablename_len]; /* Search at first in the alias list, and use the correct name for the next search */ - sprintf (buf, "[name=%s],protocols.org_dir", name); - result = nis_list (buf, EXPAND_NAME, NULL, NULL); + sprintf (buf, "[name=%s],%s", name, tablename_val); + result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); /* If we do not find it, try it as original name. But if the database is correct, we should find it in the first case, too */ if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) || - result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ || - strcmp (result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type, + __type_of (result->objects.objects_val) != ENTRY_OBJ || + strcmp (result->objects.objects_val->EN_data.en_type, "protocols_tbl") != 0 || - result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 3) - sprintf (buf, "[cname=%s],protocols.org_dir", name); + result->objects.objects_val->EN_data.en_cols.en_cols_len < 3) + sprintf (buf, "[cname=%s],%s", name, tablename_val); else - sprintf (buf, "[cname=%s],protocols.org_dir", NISENTRYVAL (0, 0, result)); + sprintf (buf, "[cname=%s],%s", NISENTRYVAL (0, 0, result), + tablename_val); nis_freeresult (result); - result = nis_list (buf, EXPAND_NAME, NULL, NULL); + result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) { @@ -255,30 +304,35 @@ enum nss_status _nss_nisplus_getprotobynumber_r (const int number, struct protoent *proto, char *buffer, size_t buflen) { - int parse_res; - nis_result *result; - char buf[46]; - - snprintf (buf, sizeof (buf), "[number=%d],protocols.org_dir", number); + if (tablename_val == NULL) + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; + { + int parse_res; + nis_result *result; + char buf[46 + tablename_len]; - result = nis_list (buf, EXPAND_NAME, NULL, NULL); + snprintf (buf, sizeof (buf), "[number=%d],%s", number, tablename_val); - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - { - enum nss_status status = niserr2nss (result->status); + result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL); - nis_freeresult (result); - return status; - } + if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) + { + enum nss_status status = niserr2nss (result->status); - parse_res = _nss_nisplus_parse_protoent (result, proto, buffer, buflen); + nis_freeresult (result); + return status; + } - nis_freeresult (result); - if (parse_res) - return NSS_STATUS_SUCCESS; + parse_res = _nss_nisplus_parse_protoent (result, proto, buffer, buflen); - if (!parse_res && errno == ERANGE) - return NSS_STATUS_TRYAGAIN; - else - return NSS_STATUS_NOTFOUND; + nis_freeresult (result); + if (parse_res) + return NSS_STATUS_SUCCESS; + + if (!parse_res && errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; + } } diff --git a/nis/nss_nisplus/nisplus-publickey.c b/nis/nss_nisplus/nisplus-publickey.c index 91cfba730e..4c596b8ada 100644 --- a/nis/nss_nisplus/nisplus-publickey.c +++ b/nis/nss_nisplus/nisplus-publickey.c @@ -61,10 +61,10 @@ _nss_nisplus_getpublickey (const char *netname, char *pkey) netname, domain); if (buf[strlen (buf)-1] != '.') - strcat(buf, "."); + strcat (buf, "."); - res = nis_list(buf, USE_DGRAM+NO_AUTHINFO+FOLLOW_LINKS+FOLLOW_PATH, - NULL, NULL); + res = nis_list (buf, USE_DGRAM+NO_AUTHINFO+FOLLOW_LINKS+FOLLOW_PATH, + NULL, NULL); retval = niserr2nss (res->status); @@ -192,7 +192,7 @@ parse_grp_str (const char *s, gid_t *gidp, int *gidlenp, gid_t *gidlist) return NSS_STATUS_NOTFOUND; } - *gidp = (atoi (s)); + *gidp = atoi (s); gidlen = 0; @@ -238,7 +238,7 @@ _nss_nisplus_netname2user (char netname[MAXNETNAMELEN + 1], uid_t *uidp, /* XXX but we cant, for now. XXX */ res = nis_list (sname, USE_DGRAM+NO_AUTHINFO+FOLLOW_LINKS+FOLLOW_PATH, NULL, NULL); - switch(res->status) + switch (res->status) { case NIS_SUCCESS: case NIS_S_SUCCESS: @@ -274,10 +274,10 @@ _nss_nisplus_netname2user (char netname[MAXNETNAMELEN + 1], uid_t *uidp, netname, domain); } - len = ENTRY_LEN(res->objects.objects_val, 0); - strncpy(principal, ENTRY_VAL(res->objects.objects_val, 0), len); + len = ENTRY_LEN (res->objects.objects_val, 0); + strncpy (principal, ENTRY_VAL (res->objects.objects_val, 0), len); principal[len] = '\0'; - nis_freeresult(res); + nis_freeresult (res); if (principal[0] == '\0') return NSS_STATUS_UNAVAIL; @@ -287,45 +287,45 @@ _nss_nisplus_netname2user (char netname[MAXNETNAMELEN + 1], uid_t *uidp, * LOCAL entry in **local** cred table. */ domain = nis_local_directory (); - if ((strlen(principal)+strlen(domain)+45) > + if ((strlen (principal)+strlen (domain)+45) > (size_t) NIS_MAXNAMELEN) { syslog (LOG_ERR, _("netname2user: principal name '%s' too long"), principal); return NSS_STATUS_UNAVAIL; } - sprintf(sname, "[cname=%s,auth_type=LOCAL],cred.org_dir.%s", + sprintf (sname, "[cname=%s,auth_type=LOCAL],cred.org_dir.%s", principal, domain); if (sname[strlen(sname) - 1] != '.') strcat(sname, "."); /* must use authenticated call here */ /* XXX but we cant, for now. XXX */ - res = nis_list(sname, USE_DGRAM+NO_AUTHINFO+FOLLOW_LINKS+FOLLOW_PATH, - NULL, NULL); - switch(res->status) { - case NIS_NOTFOUND: - case NIS_PARTIAL: - case NIS_NOSUCHNAME: - case NIS_NOSUCHTABLE: - nis_freeresult (res); - return NSS_STATUS_NOTFOUND; - case NIS_S_NOTFOUND: - case NIS_TRYAGAIN: - syslog (LOG_ERR, - "netname2user: (nis+ lookup): %s\n", - nis_sperrno (res->status)); - nis_freeresult (res); - return NSS_STATUS_TRYAGAIN; - case NIS_SUCCESS: - case NIS_S_SUCCESS: - break; /* go and do something useful */ - default: - syslog (LOG_ERR, "netname2user: (nis+ lookup): %s\n", - nis_sperrno (res->status)); - nis_freeresult (res); - return NSS_STATUS_UNAVAIL; - } + res = nis_list (sname, USE_DGRAM+NO_AUTHINFO+FOLLOW_LINKS+FOLLOW_PATH, + NULL, NULL); + switch(res->status) + { + case NIS_NOTFOUND: + case NIS_PARTIAL: + case NIS_NOSUCHNAME: + case NIS_NOSUCHTABLE: + nis_freeresult (res); + return NSS_STATUS_NOTFOUND; + case NIS_S_NOTFOUND: + case NIS_TRYAGAIN: + syslog (LOG_ERR, "netname2user: (nis+ lookup): %s\n", + nis_sperrno (res->status)); + nis_freeresult (res); + return NSS_STATUS_TRYAGAIN; + case NIS_SUCCESS: + case NIS_S_SUCCESS: + break; /* go and do something useful */ + default: + syslog (LOG_ERR, "netname2user: (nis+ lookup): %s\n", + nis_sperrno (res->status)); + nis_freeresult (res); + return NSS_STATUS_UNAVAIL; + } if (res->objects.objects_len > 1) { @@ -339,7 +339,7 @@ _nss_nisplus_netname2user (char netname[MAXNETNAMELEN + 1], uid_t *uidp, netname, domain); } /* Fetch the uid */ - *uidp = (atoi (ENTRY_VAL (res->objects.objects_val, 2))); + *uidp = atoi (ENTRY_VAL (res->objects.objects_val, 2)); if (*uidp == 0) { diff --git a/nis/nss_nisplus/nisplus-pwd.c b/nis/nss_nisplus/nisplus-pwd.c index 89b0eff7a7..459a1a4380 100644 --- a/nis/nss_nisplus/nisplus-pwd.c +++ b/nis/nss_nisplus/nisplus-pwd.c @@ -30,127 +30,48 @@ __libc_lock_define_initialized (static, lock) static nis_result *result = NULL; -static nis_name *names = NULL; +static nis_name tablename_val = NULL; +static u_long tablename_len = 0; -#define NISENTRYVAL(idx,col,res) \ - ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) +extern int _nss_nisplus_parse_pwent (nis_result *res, struct passwd *pw, + char *buffer, size_t buflen); -#define NISENTRYLEN(idx,col,res) \ - ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) - -int -_nss_nisplus_parse_pwent (nis_result *result, struct passwd *pw, - char *buffer, size_t buflen) +static enum nss_status +_nss_create_tablename (void) { - char *first_unused = buffer; - size_t room_left = buflen; - - if (result == NULL) - return 0; - - if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) || - result->objects.objects_len != 1 || - result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ || - strcmp(result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type, - "passwd_tbl") != 0 || - result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 7) - return 0; - - if (NISENTRYLEN(0, 0, result) >= room_left) + if (tablename_val == NULL) { - /* The line is too long for our buffer. */ - no_more_room: - __set_errno (ERANGE); - return 0; + char buf [40 + strlen (nis_local_directory ())]; + char *p; + + p = stpcpy (buf, "passwd.org_dir."); + p = stpcpy (p, nis_local_directory ()); + tablename_val = strdup (buf); + if (tablename_val == NULL) + return NSS_STATUS_TRYAGAIN; + tablename_len = strlen (tablename_val); } - - strncpy (first_unused, NISENTRYVAL(0, 0, result), - NISENTRYLEN (0, 0, result)); - first_unused[NISENTRYLEN(0, 0, result)] = '\0'; - pw->pw_name = first_unused; - room_left -= (strlen (first_unused) +1); - first_unused += strlen (first_unused) +1; - - if (NISENTRYLEN(0, 1, result) >= room_left) - goto no_more_room; - - strncpy (first_unused, NISENTRYVAL(0, 1, result), - NISENTRYLEN (0, 1, result)); - first_unused[NISENTRYLEN(0, 1, result)] = '\0'; - pw->pw_passwd = first_unused; - room_left -= (strlen (first_unused) +1); - first_unused += strlen (first_unused) +1; - - if (NISENTRYLEN(0, 2, result) >= room_left) - goto no_more_room; - - strncpy (first_unused, NISENTRYVAL (0, 2, result), - NISENTRYLEN (0, 2, result)); - first_unused[NISENTRYLEN(0, 2, result)] = '\0'; - pw->pw_uid = atoi (first_unused); - room_left -= (strlen (first_unused) +1); - first_unused += strlen (first_unused) +1; - - if (NISENTRYLEN(0, 3, result) >= room_left) - goto no_more_room; - - strncpy (first_unused, NISENTRYVAL(0, 3, result), - NISENTRYLEN (0, 3, result)); - first_unused[NISENTRYLEN(0, 3, result)] = '\0'; - pw->pw_gid = atoi (first_unused); - room_left -= (strlen (first_unused) +1); - first_unused += strlen (first_unused) +1; - - if (NISENTRYLEN(0, 4, result) >= room_left) - goto no_more_room; - - strncpy (first_unused, NISENTRYVAL(0, 4, result), - NISENTRYLEN (0, 4, result)); - first_unused[NISENTRYLEN(0, 4, result)] = '\0'; - pw->pw_gecos = first_unused; - room_left -= (strlen (first_unused) +1); - first_unused += strlen (first_unused) +1; - - if (NISENTRYLEN(0, 5, result) >= room_left) - goto no_more_room; - - strncpy (first_unused, NISENTRYVAL (0, 5, result), - NISENTRYLEN (0, 5, result)); - first_unused[NISENTRYLEN(0, 5, result)] = '\0'; - pw->pw_dir = first_unused; - room_left -= (strlen (first_unused) +1); - first_unused += strlen (first_unused) +1; - - if (NISENTRYLEN(0, 6, result) >= room_left) - goto no_more_room; - - strncpy (first_unused, NISENTRYVAL (0, 6, result), - NISENTRYLEN (0, 6, result)); - first_unused[NISENTRYLEN (0, 6, result)] = '\0'; - pw->pw_shell = first_unused; - room_left -= (strlen (first_unused) +1); - first_unused += strlen (first_unused) +1; - - return 1; + return NSS_STATUS_SUCCESS; } + enum nss_status _nss_nisplus_setpwent (void) { + enum nss_status status = NSS_STATUS_SUCCESS; + __libc_lock_lock (lock); if (result) nis_freeresult (result); result = NULL; - if (names) - { - nis_freenames (names); - names = NULL; - } + + if (tablename_val == NULL) + status = _nss_create_tablename (); __libc_lock_unlock (lock); - return NSS_STATUS_SUCCESS; + return status; } enum nss_status @@ -161,11 +82,6 @@ _nss_nisplus_endpwent (void) if (result) nis_freeresult (result); result = NULL; - if (names) - { - nis_freenames (names); - names = NULL; - } __libc_lock_unlock (lock); @@ -182,11 +98,11 @@ internal_nisplus_getpwent_r (struct passwd *pw, char *buffer, size_t buflen) { if (result == NULL) { - names = nis_getnames ("passwd.org_dir"); - if (names == NULL || names[0] == NULL) - return NSS_STATUS_UNAVAIL; + if (tablename_val == NULL) + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; - result = nis_first_entry(names[0]); + result = nis_first_entry(tablename_val); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) return niserr2nss (result->status); } @@ -194,7 +110,7 @@ internal_nisplus_getpwent_r (struct passwd *pw, char *buffer, size_t buflen) { nis_result *res; - res = nis_next_entry(names[0], &result->cookie); + res = nis_next_entry(tablename_val, &result->cookie); nis_freeresult (result); result = res; if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) @@ -227,16 +143,20 @@ _nss_nisplus_getpwnam_r (const char *name, struct passwd *pw, { int parse_res; + if (tablename_val == NULL) + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; + if (name == NULL || strlen (name) > 8) return NSS_STATUS_NOTFOUND; else { nis_result *result; - char buf[strlen (name) + 24]; + char buf[strlen (name) + 24 + tablename_len]; - sprintf(buf, "[name=%s],passwd.org_dir", name); + sprintf(buf, "[name=%s],%s", name, tablename_val); - result = nis_list(buf, EXPAND_NAME, NULL, NULL); + result = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) { @@ -264,30 +184,35 @@ enum nss_status _nss_nisplus_getpwuid_r (const uid_t uid, struct passwd *pw, char *buffer, size_t buflen) { - int parse_res; - nis_result *result; - char buf[100]; - - sprintf(buf, "[uid=%d],passwd.org_dir", uid); + if (tablename_val == NULL) + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; + { + int parse_res; + nis_result *result; + char buf[100 + tablename_len]; - result = nis_list(buf, EXPAND_NAME, NULL, NULL); + sprintf(buf, "[uid=%d],%s", uid, tablename_val); - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - { - enum nss_status status = niserr2nss (result->status); + result = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - nis_freeresult (result); - return status; - } + if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) + { + enum nss_status status = niserr2nss (result->status); - parse_res = _nss_nisplus_parse_pwent (result, pw, buffer, buflen); + nis_freeresult (result); + return status; + } - nis_freeresult (result); - if (parse_res) - return NSS_STATUS_SUCCESS; + parse_res = _nss_nisplus_parse_pwent (result, pw, buffer, buflen); - if (!parse_res && errno == ERANGE) - return NSS_STATUS_TRYAGAIN; - else - return NSS_STATUS_NOTFOUND; + nis_freeresult (result); + if (parse_res) + return NSS_STATUS_SUCCESS; + + if (!parse_res && errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; + } } diff --git a/nis/nss_nisplus/nisplus-rpc.c b/nis/nss_nisplus/nisplus-rpc.c index 180e9169f2..cebd5d7183 100644 --- a/nis/nss_nisplus/nisplus-rpc.c +++ b/nis/nss_nisplus/nisplus-rpc.c @@ -31,98 +31,148 @@ __libc_lock_define_initialized (static, lock) static nis_result *result = NULL; -static nis_name *names = NULL; - -#define ENTNAME rpcent -#define DATABASE "rpc" -#define TRAILING_LIST_MEMBER r_aliases -#define TRAILING_LIST_SEPARATOR_P isspace -#include "../../nss/nss_files/files-parse.c" -LINE_PARSER -("#", - STRING_FIELD (result->r_name, isspace, 1); - INT_FIELD (result->r_number, isspace, 1, 10,); - ) +static nis_name tablename_val = NULL; +static u_long tablename_len = 0; #define NISENTRYVAL(idx,col,res) \ - ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) + ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) #define NISENTRYLEN(idx,col,res) \ - ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) + ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) static int _nss_nisplus_parse_rpcent (nis_result *result, struct rpcent *rpc, char *buffer, size_t buflen) { - char *p = buffer; + char *first_unused = buffer; size_t room_left = buflen; unsigned int i; - struct parser_data *data = (void *) buffer; + char *p, *line; + if (result == NULL) return 0; if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) || - result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ || - strcmp(result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type, + __type_of (result->objects.objects_val) != ENTRY_OBJ || + strcmp(result->objects.objects_val[0].EN_data.en_type, "rpc_tbl") != 0 || - result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 3) + result->objects.objects_val[0].EN_data.en_cols.en_cols_len < 3) return 0; - memset (p, '\0', room_left); - - /* Generate the rpc entry format and use the normal parser */ - if (NISENTRYLEN (0, 0, result) +1 > room_left) + if (NISENTRYLEN (0, 0, result) >= room_left) { + no_more_room: __set_errno (ERANGE); return 0; } - strncpy (p, NISENTRYVAL (0, 0, result), NISENTRYLEN (0, 0, result)); - room_left -= (NISENTRYLEN (0, 0, result) +1); - - if (NISENTRYLEN (0, 2, result) +1 > room_left) + strncpy (first_unused, NISENTRYVAL (0, 0, result), + NISENTRYLEN (0, 0, result)); + first_unused[NISENTRYLEN (0, 0, result)] = '\0'; + rpc->r_name = first_unused; + room_left -= (strlen (first_unused) +1); + first_unused += strlen (first_unused) +1; + rpc->r_number = atoi (NISENTRYVAL (0, 2, result)); + p = first_unused; + + line = p; + for (i = 0; i < result->objects.objects_len; i++) { - __set_errno (ERANGE); - return 0; + if (strcmp (NISENTRYVAL (i, 1, result), rpc->r_name) != 0) + { + if (NISENTRYLEN (i, 1, result) + 2 > room_left) + goto no_more_room; + p = stpcpy(p, " "); + p = stpncpy (p, NISENTRYVAL (i, 1, result), + NISENTRYLEN (i, 1, result)); + *p = '\0'; + room_left -= (NISENTRYLEN (i, 1, result) + 1); + } } - strcat (p, "\t"); - strncat (p, NISENTRYVAL (0, 2, result), NISENTRYLEN (0, 2, result)); - room_left -= (NISENTRYLEN (0, 2, result) + 1); - /* + 1: We overwrite the last \0 */ - - for (i = 0; i < result->objects.objects_len; i++) - /* XXX should we start with i = 0 or with i = 1 ? */ + ++p; + first_unused = p; + + /* Adjust the pointer so it is aligned for + storing pointers. */ + first_unused += __alignof__ (char *) - 1; + first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *)); + rpc->r_aliases = (char **) first_unused; + if (room_left < sizeof (char *)) + goto no_more_room; + room_left -= (sizeof (char *)); + rpc->r_aliases[0] = NULL; + + i = 0; + while (*line != '\0') { - if (NISENTRYLEN (i, 1, result) +1 > room_left) + /* Skip leading blanks. */ + while (isspace (*line)) + line++; + + if (*line == '\0') + break; + + if (room_left < sizeof (char *)) + goto no_more_room; + + room_left -= sizeof (char *); + rpc->r_aliases[i] = line; + + while (*line != '\0' && *line != ' ') + ++line; + + if (line != rpc->r_aliases[i]) { - __set_errno (ERANGE); - return 0; + if (*line != '\0') + { + *line = '\0'; + ++line; + } + ++i; } - strcat (p, " "); - strncat (p, NISENTRYVAL (i, 1, result), NISENTRYLEN (i, 1, result)); - room_left -= (NISENTRYLEN (i, 1, result) + 1); + else + rpc->r_aliases[i] = NULL; } - return _nss_files_parse_rpcent (p, rpc, data, buflen); + return 1; } +static enum nss_status +_nss_create_tablename (void) +{ + if (tablename_val == NULL) + { + char buf [40 + strlen (nis_local_directory ())]; + char *p; + + p = stpcpy (buf, "rpc.org_dir."); + p = stpcpy (p, nis_local_directory ()); + tablename_val = strdup (buf); + if (tablename_val == NULL) + return NSS_STATUS_TRYAGAIN; + tablename_len = strlen (tablename_val); + } + return NSS_STATUS_SUCCESS; +} + + enum nss_status _nss_nisplus_setrpcent (void) { + enum nss_status status = NSS_STATUS_SUCCESS; + __libc_lock_lock (lock); if (result) nis_freeresult (result); result = NULL; - if (names) - { - nis_freenames (names); - names = NULL; - } + + if (tablename_val == NULL) + status = _nss_create_tablename (); __libc_lock_unlock (lock); - return NSS_STATUS_SUCCESS; + return status; } enum nss_status @@ -133,11 +183,6 @@ _nss_nisplus_endrpcent (void) if (result) nis_freeresult (result); result = NULL; - if (names) - { - nis_freenames (names); - names = NULL; - } __libc_lock_unlock (lock); @@ -155,11 +200,11 @@ internal_nisplus_getrpcent_r (struct rpcent *rpc, char *buffer, { if (result == NULL) { - names = nis_getnames ("rpc.org_dir"); - if (names == NULL || names[0] == NULL) - return NSS_STATUS_UNAVAIL; + if (tablename_val == NULL) + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; - result = nis_first_entry(names[0]); + result = nis_first_entry(tablename_val); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) return niserr2nss (result->status); } @@ -167,7 +212,7 @@ internal_nisplus_getrpcent_r (struct rpcent *rpc, char *buffer, { nis_result *res; - res = nis_next_entry (names[0], &result->cookie); + res = nis_next_entry (tablename_val, &result->cookie); nis_freeresult (result); result = res; if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) @@ -201,32 +246,37 @@ _nss_nisplus_getrpcbyname_r (const char *name, struct rpcent *rpc, { int parse_res; + if (tablename_val == NULL) + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; + if (name == NULL) return NSS_STATUS_NOTFOUND; else { nis_result *result; - char buf[strlen (name) + 255]; + char buf[strlen (name) + 255 + tablename_len]; /* Search at first in the alias list, and use the correct name for the next search */ - sprintf (buf, "[name=%s],rpc.org_dir", name); - result = nis_list (buf, EXPAND_NAME, NULL, NULL); + sprintf (buf, "[name=%s],%s", name, tablename_val); + result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); /* If we do not find it, try it as original name. But if the database is correct, we should find it in the first case, too */ if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) || - result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ || - strcmp (result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type, + __type_of (result->objects.objects_val) != ENTRY_OBJ || + strcmp (result->objects.objects_val->EN_data.en_type, "rpc_tbl") != 0 || - result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 3) - sprintf (buf, "[cname=%s],rpc.org_dir", name); + result->objects.objects_val->EN_data.en_cols.en_cols_len < 3) + sprintf (buf, "[cname=%s],%s", name, tablename_val); else - sprintf (buf, "[cname=%s],rpc.org_dir", NISENTRYVAL(0, 0, result)); + sprintf (buf, "[cname=%s],%s", NISENTRYVAL(0, 0, result), + tablename_val); nis_freeresult (result); - result = nis_list(buf, EXPAND_NAME, NULL, NULL); + result = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS , NULL, NULL); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) { @@ -254,31 +304,37 @@ enum nss_status _nss_nisplus_getrpcbynumber_r (const int number, struct rpcent *rpc, char *buffer, size_t buflen) { - int parse_res; - nis_result *result; - char buf[100]; + if (tablename_val == NULL) + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; - snprintf (buf, sizeof (buf), "[number=%d],rpc.org_dir", number); + { + int parse_res; + nis_result *result; + char buf[100 + tablename_len]; - result = nis_list(buf, EXPAND_NAME, NULL, NULL); + snprintf (buf, sizeof (buf), "[number=%d],%s", number, tablename_val); - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - { - enum nss_status status = niserr2nss (result->status); + result = nis_list(buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL); - nis_freeresult (result); - return status; - } + if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) + { + enum nss_status status = niserr2nss (result->status); - parse_res = _nss_nisplus_parse_rpcent (result, rpc, buffer, buflen); + nis_freeresult (result); + return status; + } - nis_freeresult (result); + parse_res = _nss_nisplus_parse_rpcent (result, rpc, buffer, buflen); - if (parse_res) - return NSS_STATUS_SUCCESS; + nis_freeresult (result); - if (!parse_res && errno == ERANGE) - return NSS_STATUS_TRYAGAIN; - else - return NSS_STATUS_NOTFOUND; + if (parse_res) + return NSS_STATUS_SUCCESS; + + if (!parse_res && errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; + } } diff --git a/nis/nss_nisplus/nisplus-service.c b/nis/nss_nisplus/nisplus-service.c index 6cad42d4f6..50bc7e24c1 100644 --- a/nis/nss_nisplus/nisplus-service.c +++ b/nis/nss_nisplus/nisplus-service.c @@ -31,107 +31,154 @@ __libc_lock_define_initialized (static, lock); static nis_result *result = NULL; -static nis_name *names = NULL; - -#define ENTNAME servent -#define DATABASE "services" -#define TRAILING_LIST_MEMBER s_aliases -#define TRAILING_LIST_SEPARATOR_P isspace -#include "../../nss/nss_files/files-parse.c" -#define ISSLASH(c) ((c) == '/') -LINE_PARSER -("#", - STRING_FIELD (result->s_name, isspace, 1); - INT_FIELD (result->s_port, ISSLASH, 10, 0, htons); - STRING_FIELD (result->s_proto, isspace, 1); - ) - +static nis_name tablename_val = NULL; +static u_long tablename_len = 0; #define NISENTRYVAL(idx,col,res) \ - ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) + ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) #define NISENTRYLEN(idx,col,res) \ - ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) + ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) static int _nss_nisplus_parse_servent (nis_result *result, struct servent *serv, char *buffer, size_t buflen) { - char *p = buffer; + char *first_unused = buffer; size_t room_left = buflen; unsigned int i; - struct parser_data *data = (void *) buffer; + char *p, *line; if (result == NULL) return 0; if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) || - result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ || - strcmp (result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type, - "services_tbl") != 0 || - result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 4) + __type_of (result->objects.objects_val) != ENTRY_OBJ || + strcmp (result->objects.objects_val->EN_data.en_type, + "services_tbl") != 0 || + result->objects.objects_val->EN_data.en_cols.en_cols_len < 4) return 0; - memset (p, '\0', room_left); - - /* Generate the services entry format and use the normal parser */ - if (NISENTRYLEN (0, 0, result) + 1 > room_left) + if (NISENTRYLEN (0, 0, result) >= room_left) { + no_more_room: __set_errno (ERANGE); return 0; } - strncpy (p, NISENTRYVAL (0, 0, result), NISENTRYLEN (0, 0, result)); - room_left -= (NISENTRYLEN (0, 0, result) + 1); - - if (NISENTRYLEN (0, 3, result) + 1 > room_left) + strncpy (first_unused, NISENTRYVAL (0, 0, result), + NISENTRYLEN (0, 0, result)); + first_unused[NISENTRYLEN (0, 0, result)] = '\0'; + serv->s_name = first_unused; + room_left -= (strlen (first_unused) +1); + first_unused += strlen (first_unused) +1; + + if (NISENTRYLEN (0, 2, result) >= room_left) + goto no_more_room; + strncpy (first_unused, NISENTRYVAL (0, 2, result), + NISENTRYLEN (0, 2, result)); + first_unused[NISENTRYLEN (0, 2, result)] = '\0'; + serv->s_proto = first_unused; + room_left -= (strlen (first_unused) +1); + first_unused += strlen (first_unused) +1; + + serv->s_port = atoi (NISENTRYVAL (0, 3, result)); + p = first_unused; + + line = p; + for (i = 0; i < result->objects.objects_len; i++) { - __set_errno (ERANGE); - return 0; + if (strcmp (NISENTRYVAL (i, 1, result), serv->s_name) != 0) + { + if (NISENTRYLEN (i, 1, result) + 2 > room_left) + goto no_more_room; + p = stpcpy(p, " "); + p = stpncpy (p, NISENTRYVAL (i, 1, result), + NISENTRYLEN (i, 1, result)); + *p = '\0'; + room_left -= (NISENTRYLEN (i, 1, result) + 1); + } } - strcat (p, "\t"); - strncat (p, NISENTRYVAL (0, 3, result), NISENTRYLEN (0, 3, result)); - room_left -= (NISENTRYLEN (0, 3, result) + 1); - if (NISENTRYLEN (0, 2, result) + 1 > room_left) + ++p; + first_unused = p; + + /* Adjust the pointer so it is aligned for + storing pointers. */ + first_unused += __alignof__ (char *) - 1; + first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *)); + serv->s_aliases = (char **) first_unused; + if (room_left < sizeof (char *)) + goto no_more_room; + room_left -= (sizeof (char *)); + serv->s_aliases[0] = NULL; + + i = 0; + while (*line != '\0') { - __set_errno (ERANGE); - return 0; - } - strcat (p, "/"); - strncat (p, NISENTRYVAL (0, 2, result), NISENTRYLEN (0, 2, result)); - room_left -= (NISENTRYLEN (0, 2, result) + 1); + /* Skip leading blanks. */ + while (isspace (*line)) + line++; - for (i = 1; i < result->objects.objects_len; i++) - { - if (NISENTRYLEN (i, 1, result) + 1 > room_left) - { - __set_errno (ERANGE); - return 0; + if (*line == '\0') + break; + + if (room_left < sizeof (char *)) + goto no_more_room; + + room_left -= sizeof (char *); + serv->s_aliases[i] = line; + + while (*line != '\0' && *line != ' ') + ++line; + + if (*line == ' ') + { + *line = '\0'; + ++line; + ++i; } - strcat (p, " "); - strcat (p, NISENTRYVAL (i, 1, result)); - room_left -= (NISENTRYLEN (i, 1, result) + 1); + else + serv->s_aliases[i+1] = NULL; } - return _nss_files_parse_servent (p, serv, data, buflen); + return 1; +} + +static enum nss_status +_nss_create_tablename (void) +{ + if (tablename_val == NULL) + { + char buf [40 + strlen (nis_local_directory ())]; + char *p; + + p = stpcpy (buf, "services.org_dir."); + p = stpcpy (p, nis_local_directory ()); + tablename_val = strdup (buf); + if (tablename_val == NULL) + return NSS_STATUS_TRYAGAIN; + tablename_len = strlen (tablename_val); + } + return NSS_STATUS_SUCCESS; } + enum nss_status _nss_nisplus_setservent (void) { + enum nss_status status = NSS_STATUS_SUCCESS; + __libc_lock_lock (lock); if (result) nis_freeresult (result); result = NULL; - if (names) - { - nis_freenames (names); - names = NULL; - } + + if (tablename_val == NULL) + status = _nss_create_tablename (); __libc_lock_unlock (lock); - return NSS_STATUS_SUCCESS; + return status; } enum nss_status @@ -142,11 +189,6 @@ _nss_nisplus_endservent (void) if (result) nis_freeresult (result); result = NULL; - if (names) - { - nis_freenames (names); - names = NULL; - } __libc_lock_unlock (lock); @@ -164,11 +206,11 @@ internal_nisplus_getservent_r (struct servent *serv, char *buffer, { if (result == NULL) { - names = nis_getnames ("services.org_dir"); - if (names == NULL || names[0] == NULL) - return NSS_STATUS_UNAVAIL; + if (tablename_val == NULL) + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; - result = nis_first_entry (names[0]); + result = nis_first_entry (tablename_val); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) return niserr2nss (result->status); } @@ -176,7 +218,7 @@ internal_nisplus_getservent_r (struct servent *serv, char *buffer, { nis_result *res; - res = nis_next_entry (names[0], &result->cookie); + res = nis_next_entry (tablename_val, &result->cookie); nis_freeresult (result); result = res; if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) @@ -212,6 +254,10 @@ _nss_nisplus_getservbyname_r (const char *name, const char *protocol, { int parse_res; + if (tablename_val == NULL) + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; + if (name == NULL || protocol == NULL) { __set_errno (EINVAL); @@ -220,29 +266,30 @@ _nss_nisplus_getservbyname_r (const char *name, const char *protocol, else { nis_result *result; - char buf[strlen (name) + 255]; + char buf[strlen (name) + 255 + tablename_len]; /* Search at first in the alias list, and use the correct name for the next search */ - sprintf (buf, "[name=%s,proto=%s],services.org_dir", name, - protocol); - result = nis_list (buf, EXPAND_NAME, NULL, NULL); + sprintf (buf, "[name=%s,proto=%s],%s", name, protocol, + tablename_val); + result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); /* If we do not find it, try it as original name. But if the database is correct, we should find it in the first case, too */ if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) || - result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ || - strcmp (result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type, + __type_of (result->objects.objects_val) != ENTRY_OBJ || + strcmp (result->objects.objects_val->EN_data.en_type, "services_tbl") != 0 || - result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 4) - sprintf (buf, "[cname=%s,proto=%s],services.org_dir", name, protocol); + result->objects.objects_val->EN_data.en_cols.en_cols_len < 4) + sprintf (buf, "[cname=%s,proto=%s],%s", name, protocol, + tablename_val); else - sprintf (buf, "[cname=%s,proto=%s],services.org_dir", - NISENTRYVAL (0, 0, result), protocol); + sprintf (buf, "[cname=%s,proto=%s],%s", + NISENTRYVAL (0, 0, result), protocol, tablename_val); nis_freeresult (result); - result = nis_list (buf, EXPAND_NAME, NULL, NULL); + result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) { @@ -271,38 +318,44 @@ _nss_nisplus_getservbynumber_r (const int number, const char *protocol, struct servent *serv, char *buffer, size_t buflen) { - int parse_res; - nis_result *result; - char buf[60 + strlen (protocol)]; + if (tablename_val == NULL) + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; if (protocol == NULL) { __set_errno (EINVAL); return NSS_STATUS_NOTFOUND; } + else + { + int parse_res; + nis_result *result; + char buf[60 + strlen (protocol) + tablename_len]; - snprintf (buf, sizeof (buf), "[number=%d,proto=%s],services.org_dir", - number, protocol); + snprintf (buf, sizeof (buf), "[number=%d,proto=%s],%s", + number, protocol, tablename_val); - result = nis_list (buf, EXPAND_NAME, NULL, NULL); + result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - { - enum nss_status status = niserr2nss (result->status); + if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) + { + enum nss_status status = niserr2nss (result->status); - nis_freeresult (result); - return status; - } + nis_freeresult (result); + return status; + } - parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen); + parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen); - nis_freeresult (result); + nis_freeresult (result); - if (parse_res) - return NSS_STATUS_SUCCESS; + if (parse_res) + return NSS_STATUS_SUCCESS; - if (!parse_res && errno == ERANGE) - return NSS_STATUS_TRYAGAIN; - else - return NSS_STATUS_NOTFOUND; + if (!parse_res && errno == ERANGE) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; + } } diff --git a/nis/nss_nisplus/nisplus-spwd.c b/nis/nss_nisplus/nisplus-spwd.c index e6ff674f30..81bde4e689 100644 --- a/nis/nss_nisplus/nisplus-spwd.c +++ b/nis/nss_nisplus/nisplus-spwd.c @@ -26,132 +26,45 @@ #include <rpcsvc/nislib.h> #include "nss-nisplus.h" +#include "nisplus-parser.h" __libc_lock_define_initialized (static, lock) static nis_result *result = NULL; -static nis_name *names = NULL; +static nis_name tablename_val = NULL; +static u_long tablename_len = 0; -#define NISENTRYVAL(idx,col,res) \ - ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) - -#define NISENTRYLEN(idx,col,res) \ - ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) - -int -_nss_nisplus_parse_spent (nis_result *result, struct spwd *sp, - char *buffer, size_t buflen) +static enum nss_status +_nss_create_tablename (void) { - char *first_unused = buffer; - size_t room_left = buflen; - - if (result == NULL) - return 0; - - if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) || - result->objects.objects_len != 1 || - result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ || - strcmp (result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type, - "passwd_tbl") != 0 || - result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 8) - return 0; - - if (NISENTRYLEN(0, 0, result) >= room_left) - { - /* The line is too long for our buffer. */ - no_more_room: - __set_errno (ERANGE); - return 0; - } - - strncpy (first_unused, NISENTRYVAL (0, 0, result), - NISENTRYLEN (0, 0, result)); - first_unused[NISENTRYLEN(0, 0, result)] = '\0'; - sp->sp_namp = first_unused; - room_left -= (strlen (first_unused) +1); - first_unused += strlen (first_unused) +1; - - if (NISENTRYLEN(0, 1, result) >= room_left) - goto no_more_room; - - strncpy (first_unused, NISENTRYVAL (0, 1, result), - NISENTRYLEN (0, 1, result)); - first_unused[NISENTRYLEN(0, 1, result)] = '\0'; - sp->sp_pwdp = first_unused; - room_left -= (strlen (first_unused) +1); - first_unused += strlen (first_unused) +1; - - sp->sp_lstchg = sp->sp_min = sp->sp_max = sp->sp_warn = sp->sp_inact = - sp->sp_expire = sp->sp_flag = -1; - - if (NISENTRYVAL (0, 7, result) != NULL) + if (tablename_val == NULL) { - char *line, *cp; - - line = NISENTRYVAL (0, 7, result); - cp = strchr (line, ':'); - if (cp == NULL) - return 0; - *cp++ = '\0'; - sp->sp_lstchg = atol (line); - - line = cp; - cp = strchr (line, ':'); - if (cp == NULL) - return 0; - *cp++ = '\0'; - sp->sp_min = atol(line); - - line = cp; - cp = strchr (line, ':'); - if (cp == NULL) - return 0; - *cp++ = '\0'; - sp->sp_max = atol(line); - - line = cp; - cp = strchr (line, ':'); - if (cp == NULL) - return 0; - *cp++ = '\0'; - sp->sp_warn = atol(line); - - line = cp; - cp = strchr (line, ':'); - if (cp == NULL) - return 0; - *cp++ = '\0'; - sp->sp_inact = atol(line); - - line = cp; - cp = strchr (line, ':'); - if (cp == NULL) - return 0; - *cp++ = '\0'; - sp->sp_expire = atol(line); - - line = cp; - if (line == NULL) - return 0; - sp->sp_flag = atol(line); + char buf [40 + strlen (nis_local_directory ())]; + char *p; + + p = stpcpy (buf, "passwd.org_dir."); + p = stpcpy (p, nis_local_directory ()); + tablename_val = strdup (buf); + if (tablename_val == NULL) + return NSS_STATUS_TRYAGAIN; + tablename_len = strlen (tablename_val); } - - return 1; + return NSS_STATUS_SUCCESS; } enum nss_status _nss_nisplus_setspent (void) { + enum nss_status status = NSS_STATUS_SUCCESS; + __libc_lock_lock (lock); if (result) nis_freeresult (result); result = NULL; - if (names) - { - nis_freenames (names); - names = NULL; - } + + if (tablename_val == NULL) + status = _nss_create_tablename (); __libc_lock_unlock (lock); @@ -166,11 +79,6 @@ _nss_nisplus_endspent (void) if (result) nis_freeresult (result); result = NULL; - if (names) - { - nis_freenames (names); - names = NULL; - } __libc_lock_unlock (lock); @@ -187,11 +95,11 @@ internal_nisplus_getspent_r (struct spwd *sp, char *buffer, size_t buflen) { if (result == NULL) { - names = nis_getnames ("passwd.org_dir"); - if (names == NULL || names[0] == NULL) - return NSS_STATUS_UNAVAIL; + if (tablename_val == NULL) + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; - result = nis_first_entry (names[0]); + result = nis_first_entry (tablename_val); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) return niserr2nss (result->status); } @@ -199,7 +107,7 @@ internal_nisplus_getspent_r (struct spwd *sp, char *buffer, size_t buflen) { nis_result *res; - res = nis_next_entry (names[0], &result->cookie); + res = nis_next_entry (tablename_val, &result->cookie); nis_freeresult (result); result = res; if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) @@ -232,16 +140,20 @@ _nss_nisplus_getspnam_r (const char *name, struct spwd *sp, { int parse_res; + if (tablename_val == NULL) + if (_nss_create_tablename () != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; + if (name == NULL || strlen (name) > 8) return NSS_STATUS_NOTFOUND; else { nis_result *result; - char buf[strlen (name) + 24]; + char buf[strlen (name) + 24 + tablename_len]; - sprintf (buf, "[name=%s],passwd.org_dir", name); + sprintf (buf, "[name=%s],%s", name, tablename_val); - result = nis_list (buf, EXPAND_NAME, NULL, NULL); + result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) { diff --git a/nis/rpcsvc/nis_cache.h b/nis/rpcsvc/nis_cache.h new file mode 100644 index 0000000000..ca91a22cd4 --- /dev/null +++ b/nis/rpcsvc/nis_cache.h @@ -0,0 +1,47 @@ +#ifndef __RPCSVC_NIS_CACHE_H_ +#define __RPCSVC_NIS_CACHE_H_ + +#include <features.h> +#include <rpc/rpc.h> +#include <rpc/types.h> +#include <rpcsvc/nis.h> + +__BEGIN_DECLS + +/* default cache file */ +#define CACHEFILE "/var/nis/NIS_SHARED_DIRCACHE" + +/* clients have to read-lock the cache file, and SVR4 locking requires that */ +/* the file be writable, but we don't want a world-writable cache file. */ +/* So... everyone agrees to use a different, world-writable file for the */ +/* locking operations, but the data is in CACHEFILE. */ +#define CACHELOCK "/usr/tmp/.NIS_DIR_CACHELOCK" + +/* the file containing one trusted XDR'ed directory object. + * This has to be present for the system to work. + */ +#define COLD_START_FILE "/var/nis/NIS_COLD_START" + +enum pc_status {HIT, MISS, NEAR_MISS}; + +#define CACHEPROG ((u_long)100301) +#define CACHE_VER_1 ((u_long)1) + +#define NIS_CACHE_ADD_ENTRY ((u_long)1) +#define NIS_CACHE_REMOVE_ENTRY ((u_long)2) +#define NIS_CACHE_READ_COLDSTART ((u_long)3) +#define NIS_CACHE_REFRESH_ENTRY ((u_long)4) + +extern void *nis_cache_add_entry_1 __P ((fd_result *, CLIENT *)); +extern void *nis_cache_add_entry_1_svc __P ((fd_result *, struct svc_req *)); +extern void *nis_cache_remove_entry_1 __P ((directory_obj *, CLIENT *)); +extern void *nis_cache_remove_entry_1_svc __P ((directory_obj *, + struct svc_req *)); +extern void *nis_cache_read_coldstart_1 __P ((void *, CLIENT *)); +extern void *nis_cache_read_coldstart_1_svc __P ((void *, struct svc_req *)); +extern void *nis_cache_refresh_entry_1 __P ((char **, CLIENT *)); +extern void *nis_cache_refresh_entry_1_svc __P ((char **, struct svc_req *)); + +__END_DECLS + +#endif /* !_RPCSVC_NIS_CACHE_H_ */ diff --git a/nis/rpcsvc/nis_cache.x b/nis/rpcsvc/nis_cache.x new file mode 100644 index 0000000000..91870d8a48 --- /dev/null +++ b/nis/rpcsvc/nis_cache.x @@ -0,0 +1,47 @@ +/* + * nis_cache.x + * + * Copyright (c) 1988-1992 Sun Microsystems Inc + * All Rights Reserved. + */ + +%#pragma ident "@(#)nis_cache.x 1.8 92/07/14 SMI" + + +#ifdef RPC_HDR +%#include <rpc/types.h> +%#include <rpcsvc/nis.h> +% +%/* default cache file */ +%#define CACHEFILE "/var/nis/NIS_SHARED_DIRCACHE" +% +%/* clients have to read-lock the cache file, and SVR4 locking requires that */ +%/* the file be writable, but we don't want a world-writable cache file. */ +%/* So... everyone agrees to use a different, world-writable file for the */ +%/* locking operations, but the data is in CACHEFILE. */ +%#define CACHELOCK "/usr/tmp/.NIS_DIR_CACHELOCK" +% +%/* the file containing one trusted XDR'ed directory object. +% * This has to be present for the system to work. +% */ +%#define COLD_START_FILE "/var/nis/NIS_COLD_START" +% +%enum pc_status {HIT, MISS, NEAR_MISS}; +% +%extern int __nis_debuglevel; +% +% +#endif + +#ifdef RPC_CLNT +%#include "../gen/nis_clnt.h" +#endif + +program CACHEPROG { + version CACHE_VER_1 { + void NIS_CACHE_ADD_ENTRY(fd_result) = 1; + void NIS_CACHE_REMOVE_ENTRY(directory_obj) = 2; + void NIS_CACHE_READ_COLDSTART(void) = 3; + void NIS_CACHE_REFRESH_ENTRY(string<>) = 4; + } = 1; +} = 100301; diff --git a/nis/rpcsvc/nislib.h b/nis/rpcsvc/nislib.h index cbd8fbde51..73b3804e85 100644 --- a/nis/rpcsvc/nislib.h +++ b/nis/rpcsvc/nislib.h @@ -254,10 +254,14 @@ extern nis_name __nis_default_owner __P ((char *)); extern nis_name __nis_default_group __P ((char *)); extern u_long __nis_default_ttl __P ((char *)); extern u_long __nis_default_access __P ((char *, u_long)); -extern fd_result *__nis_finddirectory __P ((directory_obj *, nis_name)); +extern fd_result *__nis_finddirectory __P ((directory_obj *, const_nis_name)); +extern u_long __nis_hash __P ((const void *keyarg, register size_t len)); extern log_result *__nis_dumplog __P ((nis_server *,nis_name, u_long)); extern log_result *__nis_dump __P ((nis_server *, nis_name, int (*)(nis_name, nis_object *, void *))); +/* NIS+ cache locking */ +extern int __nis_lock_cache __P ((void)); +extern int __nis_unlock_cache __P ((void)); __END_DECLS |