avformat/hlsplaylist: add return value check of strftime

fix CID: 1424884
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
This commit is contained in:
Steven Liu 2017-12-04 12:05:04 +08:00
parent 071f47649c
commit ad6946b818

View File

@ -109,7 +109,10 @@ int ff_hls_write_file_entry(AVIOContext *out, int insert_discont,
tt = (int64_t)*prog_date_time;
milli = av_clip(lrint(1000*(*prog_date_time - tt)), 0, 999);
tm = localtime_r(&tt, &tmpbuf);
strftime(buf0, sizeof(buf0), "%Y-%m-%dT%H:%M:%S", tm);
if (!strftime(buf0, sizeof(buf0), "%Y-%m-%dT%H:%M:%S", tm)) {
av_log(NULL, AV_LOG_DEBUG, "strftime error in ff_hls_write_file_entry\n");
return AVERROR_UNKNOWN;
}
if (!strftime(buf1, sizeof(buf1), "%z", tm) || buf1[1]<'0' ||buf1[1]>'2') {
int tz_min, dst = tm->tm_isdst;
tm = gmtime_r(&tt, &tmpbuf);