+static struct passwd *getpwnam_alloc(TALLOC_CTX *mem_ctx, const char *name)
+{
+ struct passwd *pw, *for_cache;
+
+ pw = (struct passwd *)memcache_lookup_talloc(
+ NULL, GETPWNAM_CACHE, data_blob_string_const_null(name));
+ if (pw != NULL) {
+ return tcopy_passwd(mem_ctx, pw);
+ }
+
+ pw = sys_getpwnam(name);
+ if (pw == NULL) {
+ return NULL;
+ }
+
+ for_cache = tcopy_passwd(talloc_tos(), pw);
+ if (for_cache == NULL) {
+ return NULL;
+ }
+
+ memcache_add_talloc(NULL, GETPWNAM_CACHE,
+ data_blob_string_const_null(name), &for_cache);
+
+ return tcopy_passwd(mem_ctx, pw);
+}
+
+/****************************************************************************
+ talloc copy a struct passwd.
+****************************************************************************/
+
+struct passwd *tcopy_passwd(TALLOC_CTX *mem_ctx, const struct passwd *from)
+{
+ struct passwd *ret = TALLOC_P(mem_ctx, struct passwd);
+ if (!ret) {
+ return NULL;
+ }
+ ret->pw_name = talloc_strdup(ret, from->pw_name);
+ ret->pw_passwd = talloc_strdup(ret, from->pw_passwd);
+ ret->pw_uid = from->pw_uid;
+ ret->pw_gid = from->pw_gid;
+ ret->pw_gecos = talloc_strdup(ret, from->pw_gecos);
+ ret->pw_dir = talloc_strdup(ret, from->pw_dir);
+ ret->pw_shell = talloc_strdup(ret, from->pw_shell);
+ return ret;
+}
+
+/****************************************************************************
+ Flush all cached passwd structs.
+****************************************************************************/
+
+void flush_pwnam_cache(void)
+{
+ memcache_flush(NULL, GETPWNAM_CACHE);
+}
+
+/****************************************************************************
+ talloc'ed version of getpwuid.
+****************************************************************************/
+
+struct passwd *getpwuid_alloc(TALLOC_CTX *mem_ctx, uid_t uid)
+{
+ struct passwd *temp = sys_getpwuid(uid);
+
+ if (!temp) {
+ return NULL;
+ }
+
+ return tcopy_passwd(mem_ctx, temp);
+}
+