diff options
| -rw-r--r-- | applypatch/imgdiff.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/applypatch/imgdiff.cpp b/applypatch/imgdiff.cpp index f6087de01..77c19ad97 100644 --- a/applypatch/imgdiff.cpp +++ b/applypatch/imgdiff.cpp @@ -320,6 +320,10 @@ unsigned char* ReadZip(const char* filename, // -15 means we are decoding a 'raw' deflate stream; zlib will // not expect zlib headers. int ret = inflateInit2(&strm, -15); + if (ret < 0) { + printf("failed to initialize inflate: %d\n", ret); + return NULL; + } strm.avail_out = curr->len; strm.next_out = curr->data; @@ -445,6 +449,10 @@ unsigned char* ReadImage(const char* filename, // -15 means we are decoding a 'raw' deflate stream; zlib will // not expect zlib headers. int ret = inflateInit2(&strm, -15); + if (ret < 0) { + printf("failed to initialize inflate: %d\n", ret); + return NULL; + } do { strm.avail_out = allocated - curr->len; @@ -552,10 +560,18 @@ int TryReconstruction(ImageChunk* chunk, unsigned char* out) { int ret; ret = deflateInit2(&strm, chunk->level, chunk->method, chunk->windowBits, chunk->memLevel, chunk->strategy); + if (ret < 0) { + printf("failed to initialize deflate: %d\n", ret); + return -1; + } do { strm.avail_out = BUFFER_SIZE; strm.next_out = out; ret = deflate(&strm, Z_FINISH); + if (ret < 0) { + printf("failed to deflate: %d\n", ret); + return -1; + } size_t have = BUFFER_SIZE - strm.avail_out; if (memcmp(out, chunk->deflate_data+p, have) != 0) { |