2 Unix SMB/CIFS implementation.
3 Samba utility functions
4 Copyright (C) Simo Sorce 2001
5 Copyright (C) Jeremy Allison 2001
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 /****************************************************************
25 Returns a single linked list of group entries.
26 Use grent_free() to free it after use.
27 ****************************************************************/
29 struct sys_grent * getgrent_list(void)
31 struct sys_grent *glist;
32 struct sys_grent *gent;
35 gent = malloc_p(struct sys_grent);
37 DEBUG (0, ("Out of memory in getgrent_list!\n"));
40 memset(gent, '\0', sizeof(struct sys_grent));
55 if ((gent->gr_name = strdup(grp->gr_name)) == NULL)
59 if ((gent->gr_passwd = strdup(grp->gr_passwd)) == NULL)
62 gent->gr_gid = grp->gr_gid;
64 /* number of strings in gr_mem */
65 for (num = 0; grp->gr_mem[num]; num++)
68 /* alloc space for gr_mem string pointers */
69 if ((gent->gr_mem = malloc_array_p(char *, num+1)) == NULL)
72 memset(gent->gr_mem, '\0', (num+1) * sizeof(char *));
74 for (i=0; i < num; i++) {
75 if ((gent->gr_mem[i] = strdup(grp->gr_mem[i])) == NULL)
78 gent->gr_mem[num] = NULL;
82 gent->next = malloc_p(struct sys_grent);
83 if (gent->next == NULL)
86 memset(gent, '\0', sizeof(struct sys_grent));
96 DEBUG(0, ("Out of memory in getgrent_list!\n"));
101 /****************************************************************
102 Free the single linked list of group entries made by
104 ****************************************************************/
106 void grent_free (struct sys_grent *glist)
109 struct sys_grent *prev;
111 SAFE_FREE(glist->gr_name);
112 SAFE_FREE(glist->gr_passwd);
115 for (i = 0; glist->gr_mem[i]; i++)
116 SAFE_FREE(glist->gr_mem[i]);
117 SAFE_FREE(glist->gr_mem);
125 /****************************************************************
126 Returns a single linked list of passwd entries.
127 Use pwent_free() to free it after use.
128 ****************************************************************/
130 struct sys_pwent * getpwent_list(void)
132 struct sys_pwent *plist;
133 struct sys_pwent *pent;
136 pent = malloc_p(struct sys_pwent);
138 DEBUG (0, ("Out of memory in getpwent_list!\n"));
145 while (pwd != NULL) {
146 memset(pent, '\0', sizeof(struct sys_pwent));
148 if ((pent->pw_name = strdup(pwd->pw_name)) == NULL)
151 if (pwd->pw_passwd) {
152 if ((pent->pw_passwd = strdup(pwd->pw_passwd)) == NULL)
155 pent->pw_uid = pwd->pw_uid;
156 pent->pw_gid = pwd->pw_gid;
158 if ((pent->pw_name = strdup(pwd->pw_gecos)) == NULL)
162 if ((pent->pw_name = strdup(pwd->pw_dir)) == NULL)
166 if ((pent->pw_name = strdup(pwd->pw_shell)) == NULL)
172 pent->next = malloc_p(struct sys_pwent);
173 if (pent->next == NULL)
185 DEBUG(0, ("Out of memory in getpwent_list!\n"));
190 /****************************************************************
191 Free the single linked list of passwd entries made by
193 ****************************************************************/
195 void pwent_free (struct sys_pwent *plist)
198 struct sys_pwent *prev;
200 SAFE_FREE(plist->pw_name);
201 SAFE_FREE(plist->pw_passwd);
202 SAFE_FREE(plist->pw_gecos);
203 SAFE_FREE(plist->pw_dir);
204 SAFE_FREE(plist->pw_shell);
212 /****************************************************************
213 Add the individual group users onto the list.
214 ****************************************************************/
216 static struct sys_userlist *add_members_to_userlist(struct sys_userlist *list_head, const struct group *grp)
220 /* Count the number of users. */
221 for (num_users = 0; grp->gr_mem[num_users]; num_users++)
224 for (i = 0; i < num_users; i++) {
225 struct sys_userlist *entry = malloc_p(struct sys_userlist);
227 free_userlist(list_head);
230 entry->unix_name = (char *)strdup(grp->gr_mem[i]);
231 if (entry->unix_name == NULL) {
233 free_userlist(list_head);
236 DLIST_ADD(list_head, entry);
241 /****************************************************************
242 Get the list of UNIX users in a group.
243 We have to enumerate the /etc/group file as some UNIX getgrnam()
244 calls won't do that for us (notably Tru64 UNIX).
245 ****************************************************************/
247 struct sys_userlist *get_users_in_group(const char *gname)
249 struct sys_userlist *list_head = NULL;
252 #if !defined(BROKEN_GETGRNAM)
253 if ((gptr = (struct group *)getgrnam(gname)) == NULL)
255 return add_members_to_userlist(list_head, gptr);
257 /* BROKEN_GETGRNAM - True64 */
259 while((gptr = getgrent()) != NULL) {
260 if (strequal(gname, gptr->gr_name)) {
261 list_head = add_members_to_userlist(list_head, gptr);
262 if (list_head == NULL)
271 /****************************************************************
272 Free list allocated above.
273 ****************************************************************/
275 void free_userlist(struct sys_userlist *list_head)
278 struct sys_userlist *old_head = list_head;
279 DLIST_REMOVE(list_head, list_head);
280 SAFE_FREE(old_head->unix_name);