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prevent possible exploit

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@15427 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
nicodvb 2005-05-13 00:00:54 +00:00
parent 4bd4a37a2e
commit a2ac4cd246
1 changed files with 3 additions and 1 deletions
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4
libmpdemux/demux_ogg.c
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@ -758,6 +758,7 @@ static void fixup_vorbis_wf(sh_audio_t *sh)
ogg_packet op[3];
unsigned char *buf[3];
unsigned char *ptr;
unsigned int len;
for(i = 0; i < 3; i++) {
op[i].bytes = ds_get_packet(sh->ds, &(op[i].packet));
@ -772,7 +773,8 @@ static void fixup_vorbis_wf(sh_audio_t *sh)
memcpy(buf[i], op[i].packet, op[i].bytes);
}
sh->wf = (WAVEFORMATEX*)calloc(1, sizeof(WAVEFORMATEX) + op[0].bytes + op[1].bytes + op[2].bytes + 64);
len = op[0].bytes + op[1].bytes + op[2].bytes;
sh->wf = (WAVEFORMATEX*)calloc(1, sizeof(WAVEFORMATEX) + len + len/255 + 64);
ptr = (unsigned char*) (sh->wf+1);
ptr[0] = 2;