From 2b5f9eaf39cc45e78029424c8766760cdebdce44 Mon Sep 17 00:00:00 2001 From: Cai Fan Date: Thu, 31 Jul 2025 10:13:03 +0800 Subject: [PATCH 1/1] =?UTF-8?q?libavformat/img2enc.c:=20rm=20warning=20?= =?UTF-8?q?=E2=80=98.tmp=E2=80=99=20directive=20output=20may=20be=20trunca?= =?UTF-8?q?ted?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Cai Fan --- libavformat/img2enc.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/libavformat/img2enc.c b/libavformat/img2enc.c index 41638d92b8..9a5718a8da 100644 --- a/libavformat/img2enc.c +++ b/libavformat/img2enc.c @@ -180,7 +180,12 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt) } for (i = 0; i < 4; i++) { av_dict_copy(&options, img->protocol_opts, 0); - snprintf(img->tmp[i], sizeof(img->tmp[i]), "%s.tmp", filename); + int len = snprintf(img->tmp[i], sizeof(img->tmp[i]), "%s.tmp", filename); + if (len < 0 || len >= sizeof(img->tmp[i])) { + av_log(s, AV_LOG_ERROR, "filename '%s' exceeds buffer size %zu\n", filename, sizeof(img->tmp[i])); + ret = AVERROR(EINVAL); + goto fail; + } av_strlcpy(img->target[i], filename, sizeof(img->target[i])); if (s->io_open(s, &pb[i], img->use_rename ? img->tmp[i] : filename, AVIO_FLAG_WRITE, &options) < 0) { av_log(s, AV_LOG_ERROR, "Could not open file : %s\n", img->use_rename ? img->tmp[i] : filename); -- 2.34.1