/* $NetBSD: cmp.c,v 1.15 2006/01/19 20:44:57 garbled Exp $ */ /* * Copyright (c) 1987, 1990, 1993, 1994 * The Regents of the University of California. 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. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. */ /*__COPYRIGHT("@(#) Copyright (c) 1987, 1990, 1993, 1994\n\ The Regents of the University of California. All rights reserved.\n"); static char sccsid[] = "@(#)cmp.c 8.3 (Berkeley) 4/2/94"; __RCSID("$NetBSD: cmp.c,v 1.15 2006/01/19 20:44:57 garbled Exp $"); */ #include "config.h" #include #include "err.h" #include #include #include #include #include #ifndef _MSC_VER # include #else # define MSC_DO_64_BIT_IO /* for correct off_t */ # include "mscfakes.h" #endif #include "getopt.h" #include "kmkbuiltin.h" #include "cmp_extern.h" static const struct option long_options[] = { { "help", no_argument, 0, 261 }, { "version", no_argument, 0, 262 }, { 0, 0, 0, 0 }, }; static int usage(FILE *); int kmk_builtin_cmp(int argc, char *argv[], char **envp) { off_t skip1 = 0, skip2 = 0; int lflag = 0, sflag = 0; int ch; char *file1, *file2; #ifdef kmk_builtin_cmp setlocale(LC_ALL, ""); #endif /* reset getopt and set progname. */ g_progname = argv[0]; opterr = 1; optarg = NULL; optopt = 0; optind = 0; /* init */ while ((ch = getopt_long(argc, argv, "ls", long_options, NULL)) != -1) { switch (ch) { case 'l': /* print all differences */ lflag = 1; break; case 's': /* silent run */ sflag = 1; break; case 261: usage(stdout); return 0; case 262: return kbuild_version(argv[0]); case '?': default: return usage(stderr); } } argv += optind; argc -= optind; if (argc < 2 || argc > 4) return usage(stderr); file1 = argv[0]; file2 = argv[1]; if (argc > 2) { char *ep; errno = 0; skip1 = strtoll(argv[2], &ep, 0); if (errno || ep == argv[2]) return errx(ERR_EXIT, "strtoll(%s,,) failed", argv[2]); if (argc == 4) { skip2 = strtoll(argv[3], &ep, 0); if (errno || ep == argv[3]) return errx(ERR_EXIT, "strtoll(%s,,) failed", argv[3]); } } return cmp_file_and_file_ex(file1, skip1, file2, skip2, sflag, lflag, 0); } static int usage(FILE *fp) { fprintf(fp, "usage: %s [-l | -s] file1 file2 [skip1 [skip2]]\n" " or: %s --help\n" " or: %s --version\n", g_progname, g_progname, g_progname); return ERR_EXIT; }