libbb: fix time parsing of [[CC]YY]MMDDhhmm[.SS]. Closes 8951

If SS is not given a value, it is assumed to be zero.
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/touch.html

Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

diff --git a/libbb/time.c b/libbb/time.c
index aa19a47d46bcefc0925bae7ab4e8912daaca55b0..82e6cb172db04efe81a48ba2f840308ab0da8ed9 100644 (file)
--- a/libbb/time.c
+++ b/libbb/time.c
@@ -186,6 +186,7 @@ void FAST_FUNC parse_datestr(const char *date_str, struct tm *ptm)
                } else {
                        bb_error_msg_and_die(bb_msg_invalid_date, date_str);
                }
+               ptm->tm_sec = 0; /* assume zero if [.SS] is not given */
                if (end == '.') {
                        /* xxx.SS */
                        if (sscanf(strchr(date_str, '.') + 1, "%u%c",