diff options
Diffstat (limited to 'nis/nis_table.c')
| -rw-r--r-- | nis/nis_table.c | 417 |
1 files changed, 417 insertions, 0 deletions
diff --git a/nis/nis_table.c b/nis/nis_table.c new file mode 100644 index 0000000000..a3061e1d94 --- /dev/null +++ b/nis/nis_table.c @@ -0,0 +1,417 @@ +/* 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" + +static void +splitname (const nis_name name, nis_name *ibr_name, int *srch_len, + nis_attr **srch_val) +{ + char *cptr, *key, *val, *next; + int size; + + if (name == NULL) + return; + + cptr = strdup (name); + if (srch_len) + *srch_len = 0; + if (srch_val) + *srch_val = NULL; + size = 0; + + /* Not of "[key=value,key=value,...],foo.." format? */ + if (cptr[0] != '[') + { + *ibr_name = cptr; + return; + } + + *ibr_name = strchr (cptr, ']'); + if (*ibr_name == NULL || (*ibr_name)[1] != ',') + { + free (cptr); + *ibr_name = NULL; + return; + } + + *ibr_name[0] = '\0'; + *ibr_name += 2; + *ibr_name = strdup (*ibr_name); + + if (srch_len == NULL || srch_val == NULL) + { + free (cptr); + return; + } + + key = (cptr) + 1; + do + { + next = strchr (key, ','); + if (next) + { + next[0] = '\0'; + ++next; + } + + val = strchr (key, '='); + if (!val) + { + free (cptr); + *srch_val = malloc (sizeof (char *)); + if (*srch_val == NULL) + { + free (cptr); + free (*ibr_name); + *ibr_name = NULL; + return; + } + (*srch_val)[*srch_len].zattr_val.zattr_val_len = 0; + (*srch_val)[*srch_len].zattr_val.zattr_val_val = NULL; + return; + } + + val[0] = '\0'; + ++val; + + if ((*srch_len) + 1 >= size) + { + size += 10; + if (size == 10) + *srch_val = malloc (size * sizeof (char *)); + else + *srch_val = realloc (val, size * sizeof (char *)); + if (*srch_val == NULL) + { + free (cptr); + free (*ibr_name); + *ibr_name = NULL; + return; + } + } + + (*srch_val)[*srch_len].zattr_ndx = strdup (key); + if (((*srch_val)[*srch_len].zattr_ndx) == NULL) + { + free (cptr); + free (*ibr_name); + *ibr_name = NULL; + return; + } + (*srch_val)[*srch_len].zattr_val.zattr_val_len = strlen (val) + 1; + (*srch_val)[*srch_len].zattr_val.zattr_val_val = strdup (val); + if ((*srch_val)[*srch_len].zattr_val.zattr_val_val == NULL) + { + free (cptr); + free (*ibr_name); + *ibr_name = NULL; + return; + } + ++(*srch_len); + + key = next; + + } + while (next); + + free (cptr); +} + +static struct ib_request * +__create_ib_request (const nis_name name, struct ib_request *ibreq, + u_long flags) +{ + splitname (name, &ibreq->ibr_name, &ibreq->ibr_srch.ibr_srch_len, + &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 | + MOD_EXCLUSIVE)); + ibreq->ibr_obj.ibr_obj_len = 0; + ibreq->ibr_obj.ibr_obj_val = NULL; + ibreq->ibr_cbhost.ibr_cbhost_len = 0; + ibreq->ibr_cbhost.ibr_cbhost_val = NULL; + ibreq->ibr_bufsize = 0; + ibreq->ibr_cookie.n_len = 0; + ibreq->ibr_cookie.n_bytes = NULL; + + return ibreq; +} + +nis_result * +nis_list (const nis_name name, const u_long flags, + int (*callback) (const nis_name name, + const nis_object *object, + const void *userdata), + const void *userdata) +{ + 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 */ + + res = calloc (1, sizeof (nis_result)); + + if (__create_ib_request (name, &ibreq, flags) == NULL) + { + res->status = NIS_BADNAME; + return res; + } + + while (is_link) + { + memset (res, '\0', sizeof (nis_result)); + + if ((result = __do_niscall (NULL, 0, NIS_IBLIST, + (xdrproc_t) xdr_ib_request, + (caddr_t) & ibreq, (xdrproc_t) xdr_nis_result, + (caddr_t) res, flags)) != RPC_SUCCESS) + { + res->status = result; + nis_free_request (&ibreq); + return res; + } + + nis_free_request (&ibreq); + + 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; + + if (__create_ib_request (res->objects.objects_val->LI_data.li_name, + &ibreq, flags) == NULL) + { + res->status = NIS_BADNAME; + return res; + } + } + else + { + res->status = NIS_NOTSEARCHABLE; + return res; + } + } + } + + if (callback != NULL && + (res->status == NIS_SUCCESS || res->status == NIS_S_SUCCESS)) + { + unsigned int i; + + for (i = 0; i < res->objects.objects_len; ++i) + if ((*callback) (name, &(res->objects.objects_val)[i], userdata) != 0) + break; + } + + return res; +} + +nis_result * +nis_add_entry (const nis_name name, const nis_object *obj, + const u_long flags) +{ + nis_result *res; + struct ib_request ibreq; + nis_error status; + + res = calloc (1, sizeof (nis_result)); + + if (__create_ib_request (name, &ibreq, flags) == NULL) + { + res->status = NIS_BADNAME; + return res; + } + + ibreq.ibr_flags = flags; + ibreq.ibr_obj.ibr_obj_val = nis_clone_object (obj, NULL); + ibreq.ibr_obj.ibr_obj_len = 1; + + if ((status = __do_niscall (NULL, 0, NIS_IBADD, + (xdrproc_t) xdr_ib_request, + (caddr_t) & ibreq, + (xdrproc_t) xdr_nis_result, + (caddr_t) res, 0)) != RPC_SUCCESS) + res->status = status; + + nis_free_request (&ibreq); + + return res; +} + +nis_result * +nis_modify_entry (const nis_name name, const nis_object *obj, + const u_long flags) +{ + nis_result *res; + struct ib_request ibreq; + nis_error status; + + res = calloc (1, sizeof (nis_result)); + + if (__create_ib_request (name, &ibreq, flags) == NULL) + { + res->status = NIS_BADNAME; + return res; + } + + ibreq.ibr_flags = flags; + ibreq.ibr_obj.ibr_obj_val = nis_clone_object (obj, NULL); + ibreq.ibr_obj.ibr_obj_len = 1; + + if ((status = __do_niscall (NULL, 0, NIS_IBMODIFY, + (xdrproc_t) xdr_ib_request, + (caddr_t) & ibreq, (xdrproc_t) xdr_nis_result, + (caddr_t) res, 0)) != RPC_SUCCESS) + res->status = status; + + nis_free_request (&ibreq); + + return res; +} + +nis_result * +nis_remove_entry (const nis_name name, const nis_object *obj, + const u_long flags) +{ + nis_result *res; + struct ib_request ibreq; + nis_error status; + + res = calloc (1, sizeof (nis_result)); + + if (__create_ib_request (name, &ibreq, flags) == NULL) + { + res->status = NIS_BADNAME; + return res; + } + + ibreq.ibr_flags = flags; + if (obj != NULL) + { + ibreq.ibr_obj.ibr_obj_val = nis_clone_object (obj, NULL); + ibreq.ibr_obj.ibr_obj_len = 1; + } + + if ((status = __do_niscall (NULL, 0, NIS_IBREMOVE, + (xdrproc_t) xdr_ib_request, + (caddr_t) & ibreq, (xdrproc_t) xdr_nis_result, + (caddr_t) res, 0)) != RPC_SUCCESS) + res->status = status; + + nis_free_request (&ibreq); + + return res; +} + +nis_result * +nis_first_entry (const nis_name name) +{ + nis_result *res; + struct ib_request ibreq; + nis_error status; + + res = calloc (1, sizeof (nis_result)); + + if (__create_ib_request (name, &ibreq, 0) == NULL) + { + res->status = NIS_BADNAME; + return res; + } + + if ((status = __do_niscall (NULL, 0, NIS_IBFIRST, (xdrproc_t) xdr_ib_request, + (caddr_t) & ibreq, (xdrproc_t) xdr_nis_result, + (caddr_t) res, 0)) != RPC_SUCCESS) + res->status = status; + + nis_free_request (&ibreq); + + return res; +} + +nis_result * +nis_next_entry (const nis_name name, const netobj *cookie) +{ + nis_result *res; + struct ib_request ibreq; + nis_error status; + + res = calloc (1, sizeof (nis_result)); + + if (__create_ib_request (name, &ibreq, 0) == NULL) + { + res->status = NIS_BADNAME; + return res; + } + + if (cookie != NULL) + { + ibreq.ibr_cookie.n_bytes = malloc (cookie->n_len); + if (ibreq.ibr_cookie.n_bytes == NULL) + { + res->status = NIS_NOMEMORY; + free (res); + return NULL; + } + memcpy (ibreq.ibr_cookie.n_bytes, cookie->n_bytes, cookie->n_len); + ibreq.ibr_cookie.n_len = cookie->n_len; + } + + if ((status = __do_niscall (NULL, 0, NIS_IBNEXT, (xdrproc_t) xdr_ib_request, + (caddr_t) & ibreq, (xdrproc_t) xdr_nis_result, + (caddr_t) res, 0)) != RPC_SUCCESS) + res->status = status; + + nis_free_request (&ibreq); + + return res; +} |