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lavu/opt: check for NULL before parsing

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set_string_binary crashes when called with val==NULL

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
This commit is contained in:
Lukasz Marek
2014-11-09 23:15:58 +01:00
parent 7edb5eec4f
commit bb60142f56
1 changed files with 4 additions and 1 deletions
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5
libavutil/opt.c
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@@ -126,11 +126,14 @@ static int set_string_binary(void *obj, const AVOption *o, const char *val, uint
{
int *lendst = (int *)(dst + 1);
uint8_t *bin, *ptr;
int len = strlen(val);
int len;
av_freep(dst);
*lendst = 0;
if (!val || !(len = strlen(val)))
return 0;
if (len & 1)
return AVERROR(EINVAL);
len /= 2;