--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+ Samba utility functions
+ Copyright (C) Simo Sorce 2001
+ Copyright (C) Jeremy Allison 2001
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+
+/****************************************************************
+ Returns a single linked list of group entries.
+ Use grent_free() to free it after use.
+****************************************************************/
+
+struct sys_grent * getgrent_list(void)
+{
+ struct sys_grent *glist;
+ struct sys_grent *gent;
+ struct group *grp;
+
+ gent = SMB_MALLOC_P(struct sys_grent);
+ if (gent == NULL) {
+ DEBUG (0, ("Out of memory in getgrent_list!\n"));
+ return NULL;
+ }
+ memset(gent, '\0', sizeof(struct sys_grent));
+ glist = gent;
+
+ setgrent();
+ grp = getgrent();
+ if (grp == NULL) {
+ endgrent();
+ SAFE_FREE(glist);
+ return NULL;
+ }
+
+ while (grp != NULL) {
+ int i,num;
+
+ if (grp->gr_name) {
+ if ((gent->gr_name = SMB_STRDUP(grp->gr_name)) == NULL)
+ goto err;
+ }
+ if (grp->gr_passwd) {
+ if ((gent->gr_passwd = SMB_STRDUP(grp->gr_passwd)) == NULL)
+ goto err;
+ }
+ gent->gr_gid = grp->gr_gid;
+
+ /* number of strings in gr_mem */
+ for (num = 0; grp->gr_mem[num]; num++)
+ ;
+
+ /* alloc space for gr_mem string pointers */
+ if ((gent->gr_mem = SMB_MALLOC_ARRAY(char *, num+1)) == NULL)
+ goto err;
+
+ memset(gent->gr_mem, '\0', (num+1) * sizeof(char *));
+
+ for (i=0; i < num; i++) {
+ if ((gent->gr_mem[i] = SMB_STRDUP(grp->gr_mem[i])) == NULL)
+ goto err;
+ }
+ gent->gr_mem[num] = NULL;
+
+ grp = getgrent();
+ if (grp) {
+ gent->next = SMB_MALLOC_P(struct sys_grent);
+ if (gent->next == NULL)
+ goto err;
+ gent = gent->next;
+ memset(gent, '\0', sizeof(struct sys_grent));
+ }
+ }
+
+ endgrent();
+ return glist;
+
+ err:
+
+ endgrent();
+ DEBUG(0, ("Out of memory in getgrent_list!\n"));
+ grent_free(glist);
+ return NULL;
+}
+
+/****************************************************************
+ Free the single linked list of group entries made by
+ getgrent_list()
+****************************************************************/
+
+void grent_free (struct sys_grent *glist)
+{
+ while (glist) {
+ struct sys_grent *prev;
+
+ SAFE_FREE(glist->gr_name);
+ SAFE_FREE(glist->gr_passwd);
+ if (glist->gr_mem) {
+ int i;
+ for (i = 0; glist->gr_mem[i]; i++)
+ SAFE_FREE(glist->gr_mem[i]);
+ SAFE_FREE(glist->gr_mem);
+ }
+ prev = glist;
+ glist = glist->next;
+ SAFE_FREE(prev);
+ }
+}
+
+/****************************************************************
+ Returns a single linked list of passwd entries.
+ Use pwent_free() to free it after use.
+****************************************************************/
+
+struct sys_pwent * getpwent_list(void)
+{
+ struct sys_pwent *plist;
+ struct sys_pwent *pent;
+ struct passwd *pwd;
+
+ pent = SMB_MALLOC_P(struct sys_pwent);
+ if (pent == NULL) {
+ DEBUG (0, ("Out of memory in getpwent_list!\n"));
+ return NULL;
+ }
+ plist = pent;
+
+ setpwent();
+ pwd = getpwent();
+ while (pwd != NULL) {
+ memset(pent, '\0', sizeof(struct sys_pwent));
+ if (pwd->pw_name) {
+ if ((pent->pw_name = SMB_STRDUP(pwd->pw_name)) == NULL)
+ goto err;
+ }
+ if (pwd->pw_passwd) {
+ if ((pent->pw_passwd = SMB_STRDUP(pwd->pw_passwd)) == NULL)
+ goto err;
+ }
+ pent->pw_uid = pwd->pw_uid;
+ pent->pw_gid = pwd->pw_gid;
+ if (pwd->pw_gecos) {
+ if ((pent->pw_gecos = SMB_STRDUP(pwd->pw_gecos)) == NULL)
+ goto err;
+ }
+ if (pwd->pw_dir) {
+ if ((pent->pw_dir = SMB_STRDUP(pwd->pw_dir)) == NULL)
+ goto err;
+ }
+ if (pwd->pw_shell) {
+ if ((pent->pw_shell = SMB_STRDUP(pwd->pw_shell)) == NULL)
+ goto err;
+ }
+
+ pwd = getpwent();
+ if (pwd) {
+ pent->next = SMB_MALLOC_P(struct sys_pwent);
+ if (pent->next == NULL)
+ goto err;
+ pent = pent->next;
+ }
+ }
+
+ endpwent();
+ return plist;
+
+ err:
+
+ endpwent();
+ DEBUG(0, ("Out of memory in getpwent_list!\n"));
+ pwent_free(plist);
+ return NULL;
+}
+
+/****************************************************************
+ Free the single linked list of passwd entries made by
+ getpwent_list()
+****************************************************************/
+
+void pwent_free (struct sys_pwent *plist)
+{
+ while (plist) {
+ struct sys_pwent *prev;
+
+ SAFE_FREE(plist->pw_name);
+ SAFE_FREE(plist->pw_passwd);
+ SAFE_FREE(plist->pw_gecos);
+ SAFE_FREE(plist->pw_dir);
+ SAFE_FREE(plist->pw_shell);
+
+ prev = plist;
+ plist = plist->next;
+ SAFE_FREE(prev);
+ }
+}
+
+/****************************************************************
+ Add the individual group users onto the list.
+****************************************************************/
+
+static struct sys_userlist *add_members_to_userlist(struct sys_userlist *list_head, const struct group *grp)
+{
+ size_t num_users, i;
+
+ /* Count the number of users. */
+ for (num_users = 0; grp->gr_mem[num_users]; num_users++)
+ ;
+
+ for (i = 0; i < num_users; i++) {
+ struct sys_userlist *entry = SMB_MALLOC_P(struct sys_userlist);
+ if (entry == NULL) {
+ free_userlist(list_head);
+ return NULL;
+ }
+ entry->unix_name = (char *)SMB_STRDUP(grp->gr_mem[i]);
+ if (entry->unix_name == NULL) {
+ SAFE_FREE(entry);
+ free_userlist(list_head);
+ return NULL;
+ }
+ DLIST_ADD(list_head, entry);
+ }
+ return list_head;
+}
+
+/*****************************************************************
+ Splits passed user or group name to domain and user/group name parts
+ Returns True if name was splitted and False otherwise.
+*****************************************************************/
+
+static BOOL split_domain_and_name(const char *name, char *domain,
+ char* username)
+{
+ char *p = strchr(name,*lp_winbind_separator());
+
+
+ /* Parse a string of the form DOMAIN/user into a domain and a user */
+ DEBUG(10,("split_domain_and_name: checking whether name |%s| local or "
+ "not\n", name));
+
+ if (p) {
+ fstrcpy(username, p+1);
+ fstrcpy(domain, name);
+ domain[PTR_DIFF(p, name)] = 0;
+ } else if (lp_winbind_use_default_domain()) {
+ fstrcpy(username, name);
+ fstrcpy(domain, lp_workgroup());
+ } else {
+ return False;
+ }
+
+ DEBUG(10,("split_domain_and_name: all is fine, domain is |%s| and "
+ "name is |%s|\n", domain, username));
+ return True;
+}
+
+/****************************************************************
+ Get the list of UNIX users in a group.
+ We have to enumerate the /etc/group file as some UNIX getgrnam()
+ calls won't do that for us (notably Tru64 UNIX).
+****************************************************************/
+
+struct sys_userlist *get_users_in_group(const char *gname)
+{
+ struct sys_userlist *list_head = NULL;
+ struct group *gptr;
+ fstring domain;
+ fstring groupname;
+ DOM_SID sid;
+ enum SID_NAME_USE name_type;
+
+ /* No point using winbind if we can't split it in the
+ first place */
+ if (split_domain_and_name(gname, domain, groupname)) {
+
+ /*
+ * If we're doing this via winbindd, don't do the
+ * entire group list enumeration as we know this is
+ * pointless (and slow).
+ */
+
+ if (winbind_lookup_name(domain, groupname, &sid, &name_type)
+ && name_type == SID_NAME_DOM_GRP) {
+ if ((gptr = (struct group *)getgrnam(gname)) == NULL)
+ return NULL;
+ return add_members_to_userlist(list_head, gptr);
+ }
+ }
+
+#if !defined(BROKEN_GETGRNAM)
+ if ((gptr = (struct group *)getgrnam(gname)) == NULL)
+ return NULL;
+ return add_members_to_userlist(list_head, gptr);
+#else
+ /* BROKEN_GETGRNAM - True64 */
+ setgrent();
+ while((gptr = getgrent()) != NULL) {
+ if (strequal(gname, gptr->gr_name)) {
+ list_head = add_members_to_userlist(list_head, gptr);
+ if (list_head == NULL)
+ return NULL;
+ }
+ }
+ endgrent();
+ return list_head;
+#endif
+}
+
+/****************************************************************
+ Free list allocated above.
+****************************************************************/
+
+void free_userlist(struct sys_userlist *list_head)
+{
+ while (list_head) {
+ struct sys_userlist *old_head = list_head;
+ DLIST_REMOVE(list_head, list_head);
+ SAFE_FREE(old_head->unix_name);
+ SAFE_FREE(old_head);
+ }
+}
projects / samba / blobdiff