diff options
Diffstat (limited to 'touch.c')
| -rw-r--r-- | touch.c | 87 |
1 files changed, 76 insertions, 11 deletions
@@ -1,20 +1,85 @@ +/* + * Mini touch implementation for busybox + * + * Copyright (C) 1998 by Erik Andersen <andersee@debian.org> + * + * 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 "internal.h" -#include <sys/types.h> #include <stdio.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> #include <utime.h> +#include <errno.h> + -const char touch_usage[] = "touch [-c] file [file ...]\n" -"\n" +const char touch_usage[] = "touch [-c] file [file ...]\n\n" "\tUpdate the last-modified date on the given file[s].\n"; -extern int -touch_fn(const struct FileInfo * i) + + +extern int +touch_main(int argc, char **argv) { - if ( (utime(i->source, 0) != 0) && (i->create != 1) ) { - if ( fopen(i->source, "w") == NULL ) { - name_and_error(i->source); - return 1; - } + int fd; + int create=TRUE; + + if (argc < 2) { + fprintf(stderr, "Usage: %s %s", *argv, touch_usage); + exit( FALSE); + } + argc--; + argv++; + + /* Parse options */ + while (**argv == '-') { + while (*++(*argv)) switch (**argv) { + case 'c': + create = FALSE; + break; + default: + fprintf(stderr, "Unknown option: %c\n", **argv); + exit( FALSE); } - return 0; + argc--; + argv++; + } + + fd = open (*argv, (create==FALSE)? O_RDWR : O_RDWR | O_CREAT, 0644); + if (fd < 0 ) { + if (create==FALSE && errno == ENOENT) + exit( TRUE); + else { + perror("touch"); + exit( FALSE); + } + } + close( fd); + if (utime (*argv, NULL)) { + perror("touch"); + exit( FALSE); + } + else + exit( TRUE); } + + + + + + |