do fractional seconds in -d dateHEADmaster

1 files changed, 13 insertions, 2 deletions

diff --git a/touch.c b/touch.c
index 06d0e69..adf8097 100644
--- a/touch.c
+++ b/touch.c
@@ -163,7 +163,7 @@ static int getnext(const char *current, char **next, size_t ndigits, char *term,
 	return ret;
 }
 
-static struct timespec convert_date(const char *date)
+static struct timespec convert_date(char *date)
 {
 	struct timespec ts = { 0 };
 	struct tm tm = { 0 };
@@ -176,7 +176,13 @@ static struct timespec convert_date(const char *date)
 	tm.tm_min = getnext(next, &next, 2, ":", 0, 59);
 	tm.tm_sec = getnext(next, &next, 2, ".,", 0, 60);
 
-	/* TODO: frac */
+	char *dec = strchr(date, '.') ? strchr(date, '.') : strchr(date, ',');
+	if (dec) {
+		*dec = '.';
+		double d = strtod(dec, &next);
+		ts.tv_nsec = d * 1000000000;
+	}
+
 	/* TODO: tz */
 	/* TODO: time is too large */
 
@@ -240,6 +246,11 @@ int main(int argc, char *argv[])
 		}
 	}
 
+	if (optind >= argc) {
+		fprintf(stderr, "touch: missing operands\n");
+		return 1;
+	}
+
 	struct timespec times[2] = { { 0 } };
 	struct stat st;