1 /* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements. See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License. You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include "apr_strings.h"
18 #include "apr_portable.h"
20 #include "apr_private.h"
24 #if APR_HAVE_SYS_TYPES_H
25 #include <sys/types.h>
28 #include <unistd.h> /* for _POSIX_THREAD_SAFE_FUNCTIONS */
30 #define APR_WANT_MEMFUNC
33 #define PWBUF_SIZE 2048
35 static apr_status_t getpwnam_safe(const char *username,
37 char pwbuf[PWBUF_SIZE])
40 #if APR_HAS_THREADS && defined(_POSIX_THREAD_SAFE_FUNCTIONS) && defined(HAVE_GETPWNAM_R)
43 /* POSIX defines getpwnam_r() et al to return the error number
44 * rather than set errno, and requires pwptr to be set to NULL if
45 * the entry is not found, imply that "not found" is not an error
46 * condition; some implementations do return 0 with pwptr set to
48 rv = getpwnam_r(username, pw, pwbuf, PWBUF_SIZE, &pwptr);
56 /* Some platforms (e.g. FreeBSD 4.x) do not set errno on NULL "not
57 * found" return values for the non-threadsafe function either. */
59 if ((pwptr = getpwnam(username)) != NULL) {
60 memcpy(pw, pwptr, sizeof *pw);
63 return errno ? errno : APR_ENOENT;
69 APR_DECLARE(apr_status_t) apr_uid_homepath_get(char **dirname,
74 char pwbuf[PWBUF_SIZE];
77 if ((rv = getpwnam_safe(username, &pw, pwbuf)) != APR_SUCCESS)
81 /* Need to manually add user name for OS/2 */
82 *dirname = apr_pstrcat(p, pw.pw_dir, pw.pw_name, NULL);
84 *dirname = apr_pstrdup(p, pw.pw_dir);
91 APR_DECLARE(apr_status_t) apr_uid_current(apr_uid_t *uid,
104 APR_DECLARE(apr_status_t) apr_uid_get(apr_uid_t *uid, apr_gid_t *gid,
105 const char *username, apr_pool_t *p)
108 char pwbuf[PWBUF_SIZE];
111 if ((rv = getpwnam_safe(username, &pw, pwbuf)) != APR_SUCCESS)
120 APR_DECLARE(apr_status_t) apr_uid_name_get(char **username, apr_uid_t userid,
124 #if APR_HAS_THREADS && defined(_POSIX_THREAD_SAFE_FUNCTIONS) && defined(HAVE_GETPWUID_R)
126 char pwbuf[PWBUF_SIZE];
129 rv = getpwuid_r(userid, &pwd, pwbuf, sizeof(pwbuf), &pw);
140 if ((pw = getpwuid(userid)) == NULL) {
141 return errno ? errno : APR_ENOENT;
144 *username = apr_pstrdup(p, pw->pw_name);