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/* vi: set sw=4 ts=4: */
/*
* Mini touch implementation for busybox
*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
/* 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 "libbb.h"
/* This is a NOFORK applet. Be very careful! */
int touch_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int touch_main(int argc ATTRIBUTE_UNUSED, char **argv)
{
int fd;
int status = EXIT_SUCCESS;
int flags = getopt32(argv, "cf");
flags &= 1; /* ignoring -f (BSD compat thingy) */
argv += optind;
if (!*argv) {
bb_show_usage();
}
do {
if (utime(*argv, NULL)) {
if (errno == ENOENT) { /* no such file */
if (flags) { /* 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_simple_perror_msg(*argv);
}
} while (*++argv);
return status;
}
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