Merge "Update the touch command to take a human readable timestamp"
diff --git a/toolbox/touch.c b/toolbox/touch.c
index b8ab310..52ddf2a 100644
--- a/toolbox/touch.c
+++ b/toolbox/touch.c
@@ -5,13 +5,40 @@
#include <sys/stat.h>
#include <stdlib.h>
#include <fcntl.h>
+#include <time.h>
static void usage(void)
{
- fprintf(stderr, "touch: usage: touch [-alm] [-t time_t] <file>\n");
+ fprintf(stderr, "touch: usage: touch [-alm] [-t YYYYMMDD[.hhmmss]] <file>\n");
exit(1);
}
+static time_t parse_time(char *s)
+{
+ struct tm tm;
+ int day = atoi(s);
+ int hour = 0;
+
+ while (*s && *s != '.') {
+ s++;
+ }
+
+ if (*s) {
+ s++;
+ hour = atoi(s);
+ }
+
+ tm.tm_year = day / 10000 - 1900;
+ tm.tm_mon = (day % 10000) / 100 - 1;
+ tm.tm_mday = day % 100;
+ tm.tm_hour = hour / 10000;
+ tm.tm_min = (hour % 10000) / 100;
+ tm.tm_sec = hour % 100;
+ tm.tm_isdst = -1;
+
+ return mktime(&tm);
+}
+
int touch_main(int argc, char *argv[])
{
int i, fd, aflag = 0, mflag = 0, debug = 0, flags = 0;
@@ -31,9 +58,9 @@
case 't':
if ((i+1) >= argc)
usage();
- specified_time.tv_sec = atol(argv[++i]);
- if (specified_time.tv_sec == 0) {
- fprintf(stderr, "touch: invalid time_t\n");
+ specified_time.tv_sec = parse_time(argv[++i]);
+ if (specified_time.tv_sec == -1) {
+ fprintf(stderr, "touch: invalid timestamp specified\n");
exit(1);
}
specified_time.tv_nsec = 0;