diff options
Diffstat (limited to 'REORG.TODO/nis/nis_local_names.c')
| -rw-r--r-- | REORG.TODO/nis/nis_local_names.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/REORG.TODO/nis/nis_local_names.c b/REORG.TODO/nis/nis_local_names.c new file mode 100644 index 0000000000..99d8f99e27 --- /dev/null +++ b/REORG.TODO/nis/nis_local_names.c @@ -0,0 +1,178 @@ +/* Copyright (c) 1997-2017 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <string.h> +#include <unistd.h> +#include <libintl.h> +#include <rpcsvc/nis.h> +#include <shlib-compat.h> + +nis_name +nis_local_group (void) +{ + static char __nisgroup[NIS_MAXNAMELEN + 1]; + + char *cptr; + if (__nisgroup[0] == '\0' + && (cptr = getenv ("NIS_GROUP")) != NULL + && strlen (cptr) < NIS_MAXNAMELEN) + { + char *cp = stpcpy (__nisgroup, cptr); + + if (cp[-1] != '.') + { + cptr = nis_local_directory (); + if ((cp - __nisgroup) + strlen (cptr) + 1 < NIS_MAXNAMELEN) + { + *cp++ = '.'; + strcpy (cp, cptr); + } + else + __nisgroup[0] = '\0'; + } + } + + return __nisgroup; +} +libnsl_hidden_nolink_def (nis_local_group, GLIBC_2_1) + +nis_name +nis_local_directory (void) +{ + static char __nisdomainname[NIS_MAXNAMELEN + 1]; + + if (__nisdomainname[0] == '\0') + { + if (getdomainname (__nisdomainname, NIS_MAXNAMELEN) < 0) + __nisdomainname[0] = '\0'; + else + { + char *cp = rawmemchr (__nisdomainname, '\0'); + + /* Missing trailing dot? */ + if (cp[-1] != '.') + { + *cp++ = '.'; + *cp = '\0'; + } + } + } + + return __nisdomainname; +} +libnsl_hidden_nolink_def (nis_local_directory, GLIBC_2_1) + +nis_name +nis_local_principal (void) +{ + static char __principal[NIS_MAXNAMELEN + 1]; + + if (__principal[0] == '\0') + { + char buf[NIS_MAXNAMELEN + 1]; + nis_result *res; + uid_t uid = geteuid (); + + if (uid != 0) + { + int len = snprintf (buf, NIS_MAXNAMELEN - 1, + "[auth_name=%d,auth_type=LOCAL],cred.org_dir.%s", + uid, nis_local_directory ()); + + if (len >= NIS_MAXNAMELEN - 1) + nobody: + /* XXX The buffer is too small. Can this happen??? */ + return strcpy (__principal, "nobody"); + + if (buf[len - 1] != '.') + { + buf[len++] = '.'; + buf[len] = '\0'; + } + + res = nis_list (buf, USE_DGRAM + NO_AUTHINFO + FOLLOW_LINKS + + FOLLOW_PATH, NULL, NULL); + + if (res == NULL) + goto nobody; + + if (NIS_RES_STATUS (res) == NIS_SUCCESS) + { + if (res->objects.objects_len > 1) + { + /* More than one principal with same uid? something + wrong with cred table. Should be unique. Warn user + and continue. */ + printf (_("\ +LOCAL entry for UID %d in directory %s not unique\n"), + uid, nis_local_directory ()); + } + strcpy (__principal, ENTRY_VAL (res->objects.objects_val, 0)); + nis_freeresult (res); + return __principal; + } + else + { + nis_freeresult (res); + goto nobody; + } + } + else + return strcpy (__principal, nis_local_host ()); + + /* Should be never reached */ + goto nobody; + } + return __principal; +} +libnsl_hidden_nolink_def (nis_local_principal, GLIBC_2_1) + +nis_name +nis_local_host (void) +{ + static char __nishostname[NIS_MAXNAMELEN + 1]; + + if (__nishostname[0] == '\0') + { + if (gethostname (__nishostname, NIS_MAXNAMELEN) < 0) + __nishostname[0] = '\0'; + else + { + char *cp = rawmemchr (__nishostname, '\0'); + int len = cp - __nishostname; + + /* Hostname already fully qualified? */ + if (cp[-1] == '.') + return __nishostname; + + if (len + strlen (nis_local_directory ()) + 1 > NIS_MAXNAMELEN) + { + __nishostname[0] = '\0'; + return __nishostname; + } + + *cp++ = '.'; + strncpy (cp, nis_local_directory (), NIS_MAXNAMELEN - len -1); + __nishostname[NIS_MAXNAMELEN] = '\0'; + } + } + + return __nishostname; +} +libnsl_hidden_nolink_def (nis_local_host, GLIBC_2_1) |