/* Copyright (c) 1997-2014 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 <assert.h> #include <string.h> #include <rpcsvc/nis.h> nis_error nis_addmember (const_nis_name member, const_nis_name group) { if (group != NULL && group[0] != '\0') { size_t grouplen = strlen (group); char buf[grouplen + 14 + NIS_MAXNAMELEN]; char domainbuf[grouplen + 2]; nis_result *res, *res2; nis_error status; char *cp, *cp2; cp = rawmemchr (nis_leaf_of_r (group, buf, sizeof (buf) - 1), '\0'); cp = stpcpy (cp, ".groups_dir"); cp2 = nis_domain_of_r (group, domainbuf, sizeof (domainbuf) - 1); if (cp2 != NULL && cp2[0] != '\0') { *cp++ = '.'; stpcpy (cp, cp2); } res = nis_lookup (buf, FOLLOW_LINKS | EXPAND_NAME); if (NIS_RES_STATUS (res) != NIS_SUCCESS) { status = NIS_RES_STATUS (res); nis_freeresult (res); return status; } if (NIS_RES_NUMOBJ (res) != 1 || __type_of (NIS_RES_OBJECT (res)) != NIS_GROUP_OBJ) { nis_freeresult (res); return NIS_INVALIDOBJ; } u_int gr_members_len = NIS_RES_OBJECT(res)->GR_data.gr_members.gr_members_len; nis_name *new_gr_members_val = realloc (NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_val, (gr_members_len + 1) * sizeof (nis_name)); if (new_gr_members_val == NULL) goto nomem_out; NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_val = new_gr_members_val; new_gr_members_val[gr_members_len] = strdup (member); if (new_gr_members_val[gr_members_len] == NULL) { nomem_out: nis_freeresult (res); return NIS_NOMEMORY; } ++NIS_RES_OBJECT (res)->GR_data.gr_members.gr_members_len; /* Check the buffer bounds are not exceeded. */ assert (strlen (NIS_RES_OBJECT(res)->zo_name) + 1 < grouplen + 14); cp = stpcpy (buf, NIS_RES_OBJECT(res)->zo_name); *cp++ = '.'; strncpy (cp, NIS_RES_OBJECT (res)->zo_domain, NIS_MAXNAMELEN); res2 = nis_modify (buf, NIS_RES_OBJECT (res)); status = NIS_RES_STATUS (res2); nis_freeresult (res); nis_freeresult (res2); return status; } else return NIS_FAIL; }