From 872138de50b1c5bbf105b0243f5778fcb02b310b Mon Sep 17 00:00:00 2001 From: Mark Whitley Date: Mon, 9 Oct 2000 18:56:47 +0000 Subject: Added cmp and readlink applets from Matt Kraai. --- coreutils/cmp.c | 65 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 coreutils/cmp.c (limited to 'coreutils') diff --git a/coreutils/cmp.c b/coreutils/cmp.c new file mode 100644 index 000000000..98b747eed --- /dev/null +++ b/coreutils/cmp.c @@ -0,0 +1,65 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini cmp implementation for busybox + * + * + * Copyright (C) 2000 by Lineo, inc. + * Written by Matt Kraai + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include "busybox.h" +#include +#include +#include + +int cmp_main(int argc, char **argv) +{ + FILE *fp1 = NULL, *fp2 = stdin; + char *filename1 = argv[1], *filename2 = "-"; + int c1, c2, char_pos = 1, line_pos = 1; + + /* parse argv[] */ + if (argc < 2 || 3 < argc) + usage(cmp_usage); + + fp1 = xfopen(argv[1], "r"); + if (argv[2] != NULL) { + fp2 = xfopen(argv[2], "r"); + filename2 = argv[2]; + } + + do { + c1 = fgetc(fp1); + c2 = fgetc(fp2); + if (c1 != c2) { + if (c1 == EOF) + printf("EOF on %s\n", filename1); + else if (c2 == EOF) + printf("EOF on %s\n", filename2); + else + printf("%s %s differ: char %d, line %d\n", filename1, filename2, + char_pos, line_pos); + return 1; + } + char_pos++; + if (c1 == '\n') + line_pos++; + } while (c1 != EOF); + + return EXIT_SUCCESS; +} -- cgit v1.2.3