/* This is a NOFORK applet. Be very careful! */
+/* coreutils implements:
+ * -a change only the access time
+ * -c, --no-create
+ * do not create any files
+ * -d, --date=STRING
+ * parse STRING and use it instead of current time
+ * -f (ignored, BSD compat)
+ * -m change only the modification time
+ * -r, --reference=FILE
+ * use this file's times instead of current time
+ * -t STAMP
+ * use [[CC]YY]MMDDhhmm[.ss] instead of current time
+ * --time=WORD
+ * change the specified time: WORD is access, atime, or use
+ */
+
int touch_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int touch_main(int argc ATTRIBUTE_UNUSED, char **argv)
+int touch_main(int argc UNUSED_PARAM, char **argv)
{
+#if ENABLE_DESKTOP
+# if ENABLE_LONG_OPTS
+ static const char touch_longopts[] ALIGN1 =
+ /* name, has_arg, val */
+ "no-create\0" No_argument "c"
+ "reference\0" Required_argument "r"
+ "date\0" Required_argument "d"
+ ;
+# endif
+ struct utimbuf timebuf;
+ char *reference_file = NULL;
+ char *date_str = NULL;
+#else
+# define reference_file NULL
+# define date_str NULL
+# define timebuf (*(struct utimbuf*)NULL)
+#endif
int fd;
int status = EXIT_SUCCESS;
- int flags = getopt32(argv, "cf");
+ int opts;
- flags &= 1; /* ignoring -f (BSD compat thingy) */
- argv += optind;
+#if ENABLE_DESKTOP && ENABLE_LONG_OPTS
+ applet_long_options = touch_longopts;
+#endif
+ /* -d and -t both set time. In coreutils,
+ * accepted data format differs a bit between -d and -t.
+ * We accept the same formats for both */
+ opts = getopt32(argv, "c" IF_DESKTOP("r:d:t:")
+ /*ignored:*/ "fma"
+ IF_DESKTOP(, &reference_file)
+ IF_DESKTOP(, &date_str)
+ IF_DESKTOP(, &date_str)
+ );
+ opts &= 1; /* only -c bit is left */
+ argv += optind;
if (!*argv) {
bb_show_usage();
}
+ if (reference_file) {
+ struct stat stbuf;
+ xstat(reference_file, &stbuf);
+ timebuf.actime = stbuf.st_atime;
+ timebuf.modtime = stbuf.st_mtime;
+ }
+
+ if (date_str) {
+ struct tm tm_time;
+ time_t t;
+
+ //time(&t);
+ //localtime_r(&t, &tm_time);
+ memset(&tm_time, 0, sizeof(tm_time));
+ parse_datestr(date_str, &tm_time);
+
+ /* Correct any day of week and day of year etc. fields */
+ tm_time.tm_isdst = -1; /* Be sure to recheck dst */
+ t = validate_tm_time(date_str, &tm_time);
+
+ timebuf.actime = t;
+ timebuf.modtime = t;
+ }
+
do {
- if (utime(*argv, NULL)) {
- if (errno == ENOENT) { /* no such file */
- if (flags) { /* Creation is disabled, so ignore. */
+ if (utime(*argv, reference_file ? &timebuf : NULL)) {
+ if (errno == ENOENT) { /* no such file */
+ if (opts) { /* creation is disabled, so ignore */
continue;
}
/* Try to create the file. */
S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH
);
if ((fd >= 0) && !close(fd)) {
+ if (reference_file)
+ utime(*argv, &timebuf);
continue;
}
}