/* * getspuid.c - Based on getpwuid.c * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the Free * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * */ #include <features.h> #include <stdlib.h> #include <unistd.h> #include <fcntl.h> #include "config.h" #ifdef __UCLIBC_HAS_THREADS__ #include <pthread.h> static pthread_mutex_t mylock = PTHREAD_MUTEX_INITIALIZER; # define LOCK pthread_mutex_lock(&mylock) # define UNLOCK pthread_mutex_unlock(&mylock); #else # define LOCK # define UNLOCK #endif int getspuid_r (uid_t uid, struct spwd *spwd, char *buff, size_t buflen, struct spwd **crap) { char pwd_buff[PWD_BUFFER_SIZE]; struct passwd password; if (getpwuid_r(uid, &password, pwd_buff, sizeof(pwd_buff), NULL) < 0) return -1; return getspnam_r(password.pw_name, spwd, buff, buflen, crap); } struct spwd *getspuid(uid_t uid) { static char line_buff[PWD_BUFFER_SIZE]; static struct spwd spwd; LOCK; if (getspuid_r(uid, &spwd, line_buff, sizeof(line_buff), NULL) != -1) { UNLOCK; return &spwd; } UNLOCK; return NULL; }