mirror of
https://github.com/topjohnwu/ndk-busybox.git
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77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Mini touch implementation for busybox
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*
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* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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/* BB_AUDIT SUSv3 _NOT_ compliant -- options -a, -m, -r, -t not supported. */
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/* http://www.opengroup.org/onlinepubs/007904975/utilities/touch.html */
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/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
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*
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* Previous version called open() and then utime(). While this will be
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* be necessary to implement -r and -t, it currently only makes things bigger.
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* Also, exiting on a failure was a bug. All args should be processed.
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*/
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#include <stdio.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <utime.h>
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#include <errno.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include "busybox.h"
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extern int touch_main(int argc, char **argv)
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{
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int fd;
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int flags;
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int status = EXIT_SUCCESS;
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flags = bb_getopt_ulflags(argc, argv, "c");
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argv += optind;
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if (!*argv) {
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bb_show_usage();
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}
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do {
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if (utime(*argv, NULL)) {
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if (errno == ENOENT) { /* no such file*/
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if (flags & 1) { /* Creation is disabled, so ignore. */
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continue;
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}
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/* Try to create the file. */
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fd = open(*argv, O_RDWR | O_CREAT,
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S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH
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);
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if ((fd >= 0) && !close(fd)) {
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continue;
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}
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}
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status = EXIT_FAILURE;
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bb_perror_msg("%s", *argv);
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}
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} while (*++argv);
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return status;
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}
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