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avutil/avstring: Limit string length in av_escape to range of int 

Otherwise the caller can't distinguish the return value from an error.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2021-03-09 21:17:12 +01:00
parent a581370f54
commit c2649d5196
1 changed files with 1 additions and 1 deletions
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2
libavutil/avstring.c
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@ -337,7 +337,7 @@ int av_escape(char **dst, const char *src, const char *special_chars,
{
AVBPrint dstbuf;
av_bprint_init(&dstbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
av_bprint_init(&dstbuf, 1, INT_MAX); /* (int)dstbuf.len must be >= 0 */
av_bprint_escape(&dstbuf, src, special_chars, mode, flags);
if (!av_bprint_is_complete(&dstbuf)) {