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groupinfo.c
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userinfo.c
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Editing: userinfo.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; }
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