Rooba
/
oss-fuzz
mirror of https://github.com/google/oss-fuzz.git
1
1
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[leptonica] Disabling PNM format for leptonica fuzzer. (#2934)

This commit is contained in:
Tim King 2019-10-09 10:38:51 -07:00 committed by Max Moroz
parent 99d7bc4020
commit af03cbe9d4
1 changed files with 17 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
projects/leptonica/pix_rotate_shear_fuzzer.cc
View File

@ -24,6 +24,9 @@
#include <cstring>
#include "leptonica/allheaders.h"
// Set to true only for debugging; always false for production
static const bool DebugOutput = false;
namespace {
// Reads the front bytes of a data buffer containing `size` bytes as an int16_t,
@ -46,10 +49,24 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
const int16_t x_center = ReadInt16(&data, &size);
const int16_t y_center = ReadInt16(&data, &size);
// Check for pnm format; this can cause timeouts.
// The format checker requires at least 12 bytes.
if (size < 12) return EXIT_SUCCESS;
int format;
findFileFormatBuffer(data, &format);
if (format == IFF_PNM) return EXIT_SUCCESS;
Pix* pix = pixReadMem(reinterpret_cast<const unsigned char*>(data), size);
if (pix == nullptr) {
return EXIT_SUCCESS;
}
// Never in production
if (DebugOutput) {
L_INFO("w = %d, h = %d, d = %d\n", "fuzzer",
pixGetWidth(pix), pixGetHeight(pix), pixGetDepth(pix));
}
constexpr float deg2rad = M_PI / 180.;
Pix* pix_rotated = pixRotateShear(pix, x_center, y_center, deg2rad * angle,
L_BRING_IN_WHITE);