commit e6c6606a17841eaf263967254990db5e9443942d Author: Alexander Færøy <ahf@torproject.org> Date: Tue Apr 18 03:12:19 2017 +0200 Expose `tor_compress_is_compression_bomb()` as part of the public compression API. This patch exposes the old `is_compression_bomb()` function as a public API as part of the compression module. See https://bugs.torproject.org/21663 --- src/common/torgzip.c | 8 ++++---- src/common/torgzip.h | 3 +++ 2 files changed, 7 insertions(+), 4 deletions(-) diff --git a/src/common/torgzip.c b/src/common/torgzip.c index 09f3806..d6f6225 100644 --- a/src/common/torgzip.c +++ b/src/common/torgzip.c @@ -105,10 +105,10 @@ method_bits(compress_method_t method, compression_level_t level) #define CHECK_FOR_COMPRESSION_BOMB_AFTER (1024*64) /** @} */ -/** Return true if uncompressing an input of size <b>in_size</b> to an input - * of size at least <b>size_out</b> looks like a compression bomb. */ -static int -is_compression_bomb(size_t size_in, size_t size_out) +/** Return true if uncompressing an input of size <b>in_size</b> to an input of + * size at least <b>size_out</b> looks like a compression bomb. */ +int +tor_compress_is_compression_bomb(size_t size_in, size_t size_out) { if (size_in == 0 || size_out < CHECK_FOR_COMPRESSION_BOMB_AFTER) return 0; diff --git a/src/common/torgzip.h b/src/common/torgzip.h index 8f2363a..fa56628 100644 --- a/src/common/torgzip.h +++ b/src/common/torgzip.h @@ -49,6 +49,9 @@ compress_method_t detect_compression_method(const char *in, size_t in_len); int tor_compress_memory_level(compression_level_t level); +int +tor_compress_is_compression_bomb(size_t size_in, size_t size_out); + /** Return values from tor_compress_process; see that function's documentation * for details. */ typedef enum {