diff options
Diffstat (limited to 'usr.bin/link/link.c')
| -rw-r--r-- | usr.bin/link/link.c | 96 |
1 files changed, 55 insertions, 41 deletions
diff --git a/usr.bin/link/link.c b/usr.bin/link/link.c index ed48857..6a45cc1 100644 --- a/usr.bin/link/link.c +++ b/usr.bin/link/link.c @@ -1,57 +1,71 @@ -/* - * link.c -- Create a link between two paths, per link(1p). +/* $NetBSD: link.c,v 1.5 2011/08/30 19:18:17 joerg Exp $ */ + +/*- + * Copyright (c) 1999 The NetBSD Foundation, Inc. + * All rights reserved. * - * Copyright (c) 2019 Kiyoshi Aman, all rights reserved. + * This code is derived from software contributed to The NetBSD Foundation + * by Klaus Klein. * * 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. - * - * 3. Neither the name of the copyright holder nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. + * 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 + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ -#define _POSIX_C_SOURCE 200112L +#include <sys/cdefs.h> +#ifndef lint +__COPYRIGHT( +"@(#) Copyright (c) 1999\ + The NetBSD Foundation, Inc. All rights reserved."); +__RCSID("$NetBSD: link.c,v 1.5 2011/08/30 19:18:17 joerg Exp $"); +#endif -#include <unistd.h> +#include <locale.h> #include <stdio.h> #include <stdlib.h> -#include <string.h> -#include <errno.h> - -int main(int argc, char **argv) { - int error = 0; - if ((argc < 3) || (argc > 3)) { - fprintf(stderr, "Usage: %s file1 file2\n\nCreates a hard link for file1 which points to file2.\n", argv[0]); - exit(EXIT_FAILURE); - } - if ((error = link(argv[1], argv[2])) != 0) { - char msg[128]; - strerror_r(errno, msg, 128); - fprintf(stderr, "Could not create link: %s\n", msg); - } else { - return EXIT_SUCCESS; - } +#include <unistd.h> + +__dead static void usage(void); + +int +main(int argc, char *argv[]) +{ + + (void)setlocale(LC_ALL, ""); + + if (argc != 3) + usage(); + + if (link(argv[1], argv[2]) != 0) { + perror("link"); + exit(EXIT_FAILURE); + } + + exit(EXIT_SUCCESS); + /* NOTREACHED */ +} + +static void +usage(void) +{ + + (void)fprintf(stderr, "usage: link file1 file2\n"); + exit(EXIT_FAILURE); } |