HardenedBSD/contrib/apr/user/unix/userinfo.c
peter 6c648dd642 Introduce svnlite so that we can check out our source code again.
This is actually a fully functional build except:
* All internal shared libraries are static linked to make sure there
  is no interference with ports (and to reduce build time).
* It does not have the python/perl/etc plugin or API support.
* By default, it installs as "svnlite" rather than "svn".
* If WITH_SVN added in make.conf, you get "svn".
* If WITHOUT_SVNLITE is in make.conf, this is completely disabled.

To be absolutely clear, this is not intended for any use other than
checking out freebsd source and committing, like we once did with cvs.

It should be usable for small scale local repositories that don't
need the python/perl plugin architecture.
2013-06-18 02:53:45 +00:00

147 lines
4.0 KiB
C

/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "apr_strings.h"
#include "apr_portable.h"
#include "apr_user.h"
#include "apr_private.h"
#ifdef HAVE_PWD_H
#include <pwd.h>
#endif
#if APR_HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#if APR_HAVE_UNISTD_H
#include <unistd.h> /* for _POSIX_THREAD_SAFE_FUNCTIONS */
#endif
#define APR_WANT_MEMFUNC
#include "apr_want.h"
#define PWBUF_SIZE 2048
static apr_status_t getpwnam_safe(const char *username,
struct passwd *pw,
char pwbuf[PWBUF_SIZE])
{
struct passwd *pwptr;
#if APR_HAS_THREADS && defined(_POSIX_THREAD_SAFE_FUNCTIONS) && defined(HAVE_GETPWNAM_R)
apr_status_t rv;
/* POSIX defines getpwnam_r() et al to return the error number
* rather than set errno, and requires pwptr to be set to NULL if
* the entry is not found, imply that "not found" is not an error
* condition; some implementations do return 0 with pwptr set to
* NULL. */
rv = getpwnam_r(username, pw, pwbuf, PWBUF_SIZE, &pwptr);
if (rv) {
return rv;
}
if (pwptr == NULL) {
return APR_ENOENT;
}
#else
/* Some platforms (e.g. FreeBSD 4.x) do not set errno on NULL "not
* found" return values for the non-threadsafe function either. */
errno = 0;
if ((pwptr = getpwnam(username)) != NULL) {
memcpy(pw, pwptr, sizeof *pw);
}
else {
return errno ? errno : APR_ENOENT;
}
#endif
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_uid_homepath_get(char **dirname,
const char *username,
apr_pool_t *p)
{
struct passwd pw;
char pwbuf[PWBUF_SIZE];
apr_status_t rv;
if ((rv = getpwnam_safe(username, &pw, pwbuf)) != APR_SUCCESS)
return rv;
#ifdef OS2
/* Need to manually add user name for OS/2 */
*dirname = apr_pstrcat(p, pw.pw_dir, pw.pw_name, NULL);
#else
*dirname = apr_pstrdup(p, pw.pw_dir);
#endif
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_uid_current(apr_uid_t *uid,
apr_gid_t *gid,
apr_pool_t *p)
{
*uid = getuid();
*gid = getgid();
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_uid_get(apr_uid_t *uid, apr_gid_t *gid,
const char *username, apr_pool_t *p)
{
struct passwd pw;
char pwbuf[PWBUF_SIZE];
apr_status_t rv;
if ((rv = getpwnam_safe(username, &pw, pwbuf)) != APR_SUCCESS)
return rv;
*uid = pw.pw_uid;
*gid = pw.pw_gid;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_uid_name_get(char **username, apr_uid_t userid,
apr_pool_t *p)
{
struct passwd *pw;
#if APR_HAS_THREADS && defined(_POSIX_THREAD_SAFE_FUNCTIONS) && defined(HAVE_GETPWUID_R)
struct passwd pwd;
char pwbuf[PWBUF_SIZE];
apr_status_t rv;
rv = getpwuid_r(userid, &pwd, pwbuf, sizeof(pwbuf), &pw);
if (rv) {
return rv;
}
if (pw == NULL) {
return APR_ENOENT;
}
#else
errno = 0;
if ((pw = getpwuid(userid)) == NULL) {
return errno ? errno : APR_ENOENT;
}
#endif
*username = apr_pstrdup(p, pw->pw_name);
return APR_SUCCESS;
}