1/* 2 * getpw.c - This file is part of the libc-8086/pwd package for ELKS, 3 * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>. 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public 16 * License along with this library; if not, write to the Free 17 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 18 * 19 */ 20 21#include <sys/types.h> 22#include <errno.h> 23#include <stdio.h> 24#include "pwd.h" 25 26int getpw(uid_t uid, char *buf) 27{ 28 struct passwd *passwd; 29 30 if (buf == NULL) { 31 errno = EINVAL; 32 return -1; 33 } 34 if ((passwd = getpwuid(uid)) == NULL) 35 return -1; 36 37 if (sprintf (buf, "%s:%s:%u:%u:%s:%s:%s", passwd->pw_name, passwd->pw_passwd, 38 passwd->pw_gid, passwd->pw_uid, passwd->pw_gecos, passwd->pw_dir, 39 passwd->pw_shell) < 0) { 40 errno = ENOBUFS; 41 return -1; 42 } 43 44 return 0; 45} 46