libc
/* $Id$ */
							/* Copyright (c) 2013-2018 Pierre Pronchery <khorben@defora.org> */
							/* This file is part of DeforaOS System libc */
							/* All rights reserved.
							 *
							 * Redistribution and use in source and binary forms, with or without
							 * modification, are permitted provided that the following conditions are
							 * met:
							 *
							 * 1. Redistributions of source code must retain the above copyright
							 *    notice, this list of conditions and the following disclaimer.
							 *
							 * 2. Redistributions in binary form must reproduce the above copyright
							 *    notice, this list of conditions and the following disclaimer in the
							 *    documentation and/or other materials provided with the distribution.
							 *
							 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
							 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
							 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
							 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
							 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
							 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
							 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
							 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
							 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
							 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
							 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
							#include <stdio.h>
							#include <string.h>
							#include <errno.h>
							#include <pwd.h>
							/* getpwent */
							static int _getpwent(char const * progname)
							{
								struct passwd * pw;
								setpwent();
								printf("%s: Testing getpwent()\n", progname);
								while((pw = getpwent()) != NULL)
									printf("%s: %s (%u:%u) %s\n", progname, pw->pw_name, pw->pw_uid,
											pw->pw_gid, pw->pw_shell);
								endpwent();
								return 0;
							}
							/* getpwnam */
							static int _getpwnam(char const * progname)
							{
								struct passwd * pw;
								printf("%s: Testing getpwnam()\n", progname);
								if((pw = getpwnam("root")) == NULL)
								{
									fprintf(stderr, "%s: %s: %s\n", progname, "getpwnam",
											strerror(errno));
									return 2;
								}
								printf("%s: %s:%s:%u:%u:%s:%s:%s\n", progname, pw->pw_name, "*",
										pw->pw_uid, pw->pw_gid, pw->pw_gecos, pw->pw_dir,
										pw->pw_shell);
								if(pw->pw_uid != 0)
									return 4;
								return 0;
							}
							/* main */
							int main(int argc, char * argv[])
							{
								int res;
								(void) argc;
								res = _getpwnam(argv[0]);
								res |= _getpwent(argv[0]);
								return res;
							}
							