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backport 'add guard for unknown roms with 8MB or more'

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twinaphex 2015-10-16 18:00:22 +02:00
parent 426033b4d1
commit 677d757c18
1 changed files with 4 additions and 4 deletions
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8
cheevos.c
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@ -1301,13 +1301,13 @@ int cheevos_get_by_content( const char** json, const void* data, size_t size )
game_id = cheevos_get_game_id( hash );
if ( !game_id )
if ( !game_id && size < CHEEVOS_EIGHT_MB )
{
/* If the content is a SNES game, continue MD5 with zeroes. */
/* Maybe the content is a SNES game, continue MD5 with zeroes up to 8MB. */
size = CHEEVOS_EIGHT_MB - size;
memset( (void*)buffer, 0, sizeof( buffer ) );
while ( size )
do
{
len = sizeof( buffer );
@ -1316,7 +1316,7 @@ int cheevos_get_by_content( const char** json, const void* data, size_t size )
MD5_Update( &saved_ctx, (void*)buffer, len );
size -= len;
}
}while(size);
MD5_Final( hash, &saved_ctx );