strtotime: improve

use long long: atleast 32-bit, but now time_t (real) to 32-bit or
64-bit is supported. Long long is C99 though, but that is fine.

check errno, it can have ERANGE.

1 files changed, 3 insertions, 3 deletions

diff --git a/util.c b/util.c
index 535e012..b75c88c 100644
--- a/util.c
+++ b/util.c
@@ -218,12 +218,12 @@ parseline(char *line, char *fields[FieldLast])
 int
 strtotime(const char *s, time_t *t)
 {
-	long l;
+	long long l;
 	char *e;
 
 	errno = 0;
-	l = strtol(s, &e, 10);
-	if (*s == '\0' || *e != '\0')
+	l = strtoll(s, &e, 10);
+	if (errno || *s == '\0' || *e)
 		return -1;
 	if (t)
 		*t = (time_t)l;