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avformat/webmdashenc: use av_strlcpy() and allocate enough space

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Fixes out of array read

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-08-29 13:02:34 +02:00
parent 5ce98e774e
commit 72732f2ddd
1 changed files with 2 additions and 2 deletions
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4
libavformat/webmdashenc.c
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@ -203,7 +203,7 @@ static int to_integer(char *p, int len)
int ret;
char *q = av_malloc(sizeof(char) * len);
if (!q) return -1;
strncpy(q, p, len);
av_strlcpy(q, p, len);
ret = atoi(q);
av_free(q);
return ret;
@ -240,7 +240,7 @@ static int parse_adaptation_sets(AVFormatContext *s)
while (*q != '\0' && *q != ',' && *q != ' ') q++;
as->streams = av_realloc(as->streams, sizeof(*as->streams) * ++as->nb_streams);
if (as->streams == NULL) return -1;
as->streams[as->nb_streams - 1] = to_integer(p, q - p);
as->streams[as->nb_streams - 1] = to_integer(p, q - p + 1);
if (as->streams[as->nb_streams - 1] < 0) return -1;
if (*q == '\0') break;
if (*q == ' ') state = new_set;