diff options
Diffstat (limited to 'user/unix/userinfo.c')
| -rw-r--r-- | user/unix/userinfo.c | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/user/unix/userinfo.c b/user/unix/userinfo.c new file mode 100644 index 0000000..516445b --- /dev/null +++ b/user/unix/userinfo.c @@ -0,0 +1,146 @@ +/* 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; +} |