[FFmpeg-devel] [PATCH] aes: fix array index out of bounds warnings

Måns Rullgård mans
Sun Jul 4 22:38:53 CEST 2010


Michael Niedermayer <michaelni at gmx.at> writes:

> On Sun, Jul 04, 2010 at 12:24:19PM +0100, M?ns Rullg?rd wrote:
>> Reimar D?ffinger <Reimar.Doeffinger at gmx.de> writes:
>> 
>> > On Sat, Jun 26, 2010 at 12:54:21AM +0100, Mans Rullgard wrote:
>> >> ---
>> >>  libavutil/aes.c |    4 ++--
>> >>  1 files changed, 2 insertions(+), 2 deletions(-)
>> >> 
>> >> diff --git a/libavutil/aes.c b/libavutil/aes.c
>> >> index d3a271c..763f856 100644
>> >> --- a/libavutil/aes.c
>> >> +++ b/libavutil/aes.c
>> >> @@ -130,7 +130,7 @@ int av_aes_init(AVAES *a, const uint8_t *key, int key_bits, int decrypt) {
>> >>      uint8_t  log8[256];
>> >>      uint8_t alog8[512];
>> >>  
>> >> -    if(!enc_multbl[0][sizeof(enc_multbl)/sizeof(enc_multbl[0][0])-1]){
>> >> +    if(!enc_multbl[FF_ARRAY_ELEMS(enc_multbl)-1][FF_ARRAY_ELEMS(enc_multbl[0])-1]){
>> >>          j=1;
>> >>          for(i=0; i<255; i++){
>> >>              alog8[i]=
>> >
>> > This part is still relevant I think, and it does not look that much worse
>> > readability-wise to me, and generated code should be identical...
>> 
>> I agree, though I'm waiting for Michael as don't want to step on
>> anyone's toes again.
>
> thanks and the above quoted change is ok with me

Applied.

-- 
M?ns Rullg?rd
mans at mansr.com



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