denuvo-ref/precomp-cpp
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At least 256 decompressed bytes in brute mode

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This commit is contained in:
Christian Schneider 2017-07-28 10:47:57 +02:00
parent f50f26dfb0
commit 9dd8029bbd
1 changed files with 4 additions and 4 deletions
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8
precomp.cpp
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@ -2733,7 +2733,7 @@ int inf(FILE *source, FILE *dest, int windowbits, int& compressed_stream_size) {
}
bool check_inf_result(int cb_pos, int windowbits) {
bool check_inf_result(int cb_pos, int windowbits, unsigned less_than_skip) {
// first check BTYPE bits, skip 00 and 11 ("uncompressed" and "reserved (error)")
int btype = (in_buf[cb_pos] & 0x07) >> 1;
if ((btype == 0) || (btype == 3)) return false;
@ -2783,7 +2783,7 @@ bool check_inf_result(int cb_pos, int windowbits) {
return true;
case Z_STREAM_END:
// Skip streams with decompressed length less than 32 bytes
return (have >= 32);
return (have >= less_than_skip);
}
return false;
@ -4418,7 +4418,7 @@ bool compress_file(float min_percent, float max_percent) {
if (compression_method == 8) {
int windowbits = (in_buf[cb] >> 4) + 8;
if (check_inf_result(cb + 2, -windowbits)) {
if (check_inf_result(cb + 2, -windowbits, 32)) {
saved_input_file_pos = input_file_pos;
saved_cb = cb;
@ -4463,7 +4463,7 @@ bool compress_file(float min_percent, float max_percent) {
saved_input_file_pos = input_file_pos;
saved_cb = cb;
if (check_inf_result(cb, -15)) {
if (check_inf_result(cb, -15, 256)) {
try_decompression_brute();
}