/* Copyright 2000-2005 The Apache Software Foundation or its licensors, as * applicable. * * Licensed 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_GRP_H#include <grp.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 */#endifAPR_DECLARE(apr_status_t) apr_gid_name_get(char **groupname, apr_gid_t groupid,                                           apr_pool_t *p){    struct group *gr;#if APR_HAS_THREADS && defined(_POSIX_THREAD_SAFE_FUNCTIONS) && defined(HAVE_GETGRGID_R)    struct group grp;    char grbuf[512];    apr_status_t rv;    /* See comment in getpwnam_safe on error handling. */    rv = getgrgid_r(groupid, &grp, grbuf, sizeof(grbuf), &gr);    if (rv) {        return rv;    }    if (gr == NULL) {        return APR_ENOENT;    }#else    errno = 0;    if ((gr = getgrgid(groupid)) == NULL) {        return errno ? errno : APR_ENOENT;    }#endif    *groupname = apr_pstrdup(p, gr->gr_name);    return APR_SUCCESS;}  APR_DECLARE(apr_status_t) apr_gid_get(apr_gid_t *groupid,                                       const char *groupname, apr_pool_t *p){    struct group *gr;#if APR_HAS_THREADS && defined(_POSIX_THREAD_SAFE_FUNCTIONS) && defined(HAVE_GETGRNAM_R)    struct group grp;    char grbuf[512];    apr_status_t rv;    /* See comment in getpwnam_safe on error handling. */    rv = getgrnam_r(groupname, &grp, grbuf, sizeof(grbuf), &gr);    if (rv) {        return rv;    }    if (gr == NULL) {        return APR_ENOENT;    }#else    errno = 0;    if ((gr = getgrnam(groupname)) == NULL) {        return errno ? errno : APR_ENOENT;    }#endif    *groupid = gr->gr_gid;    return APR_SUCCESS;}