diff options
Diffstat (limited to 'busybox/coreutils/touch.c')
-rw-r--r-- | busybox/coreutils/touch.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/busybox/coreutils/touch.c b/busybox/coreutils/touch.c new file mode 100644 index 0000000..645fb21 --- /dev/null +++ b/busybox/coreutils/touch.c @@ -0,0 +1,76 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini touch implementation for busybox + * + * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.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 + * + */ + +/* BB_AUDIT SUSv3 _NOT_ compliant -- options -a, -m, -r, -t not supported. */ +/* http://www.opengroup.org/onlinepubs/007904975/utilities/touch.html */ + +/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org) + * + * Previous version called open() and then utime(). While this will be + * be necessary to implement -r and -t, it currently only makes things bigger. + * Also, exiting on a failure was a bug. All args should be processed. + */ + +#include <stdio.h> +#include <sys/types.h> +#include <fcntl.h> +#include <utime.h> +#include <errno.h> +#include <unistd.h> +#include <stdlib.h> +#include "busybox.h" + +extern int touch_main(int argc, char **argv) +{ + int fd; + int flags; + int status = EXIT_SUCCESS; + + flags = bb_getopt_ulflags(argc, argv, "c"); + + argv += optind; + + if (!*argv) { + bb_show_usage(); + } + + do { + if (utime(*argv, NULL)) { + if (errno == ENOENT) { /* no such file*/ + if (flags & 1) { /* Creation is disabled, so ignore. */ + continue; + } + /* Try to create the file. */ + fd = open(*argv, O_RDWR | O_CREAT, + S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH + ); + if ((fd >= 0) && !close(fd)) { + continue; + } + } + status = EXIT_FAILURE; + bb_perror_msg("%s", *argv); + } + } while (*++argv); + + return status; +} |