1/* 2 Unix SMB/CIFS implementation. 3 4 Helper routines for uid and gid arrays 5 6 Copyright (C) Guenther Deschner 2009 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 3 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program. If not, see <http://www.gnu.org/licenses/>. 20*/ 21 22#include "includes.h" 23 24/**************************************************************************** 25 Add a gid to an array of gids if it's not already there. 26****************************************************************************/ 27 28bool add_gid_to_array_unique(TALLOC_CTX *mem_ctx, gid_t gid, 29 gid_t **gids, size_t *num_gids) 30{ 31 int i; 32 33 if ((*num_gids != 0) && (*gids == NULL)) { 34 /* 35 * A former call to this routine has failed to allocate memory 36 */ 37 return false; 38 } 39 40 for (i=0; i<*num_gids; i++) { 41 if ((*gids)[i] == gid) { 42 return true; 43 } 44 } 45 46 *gids = talloc_realloc(mem_ctx, *gids, gid_t, *num_gids+1); 47 if (*gids == NULL) { 48 *num_gids = 0; 49 return false; 50 } 51 52 (*gids)[*num_gids] = gid; 53 *num_gids += 1; 54 return true; 55} 56 57/**************************************************************************** 58 Add a uid to an array of uids if it's not already there. 59****************************************************************************/ 60 61bool add_uid_to_array_unique(TALLOC_CTX *mem_ctx, uid_t uid, 62 uid_t **uids, size_t *num_uids) 63{ 64 int i; 65 66 if ((*num_uids != 0) && (*uids == NULL)) { 67 /* 68 * A former call to this routine has failed to allocate memory 69 */ 70 return false; 71 } 72 73 for (i=0; i<*num_uids; i++) { 74 if ((*uids)[i] == uid) { 75 return true; 76 } 77 } 78 79 *uids = talloc_realloc(mem_ctx, *uids, uid_t, *num_uids+1); 80 if (*uids == NULL) { 81 *num_uids = 0; 82 return false; 83 } 84 85 (*uids)[*num_uids] = uid; 86 *num_uids += 1; 87 return true; 88} 89