kc3-lang/libjpeg-turbo/fuzz/cjpeg12.cc

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• Hash : 9ca7919a
  Author :
  Date : 2022-11-07T10:22:06
  

  OSS-Fuzz: Fix bug in the new cjpeg12 fuzzer
  
  cjpeg doesn't accept image format arguments other than -targa (it
  auto-detects the others), and since Targa images aren't supported with
  12-bit precision, we don't need a second pass.
  

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• fuzz/cjpeg12.cc

• /*
   * Copyright (C)2021-2022 D. R. Commander.  All Rights Reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * - Redistributions of source code must retain the above copyright notice,
   *   this list of conditions and the following disclaimer.
   * - Redistributions in binary form must reproduce the above copyright notice,
   *   this list of conditions and the following disclaimer in the documentation
   *   and/or other materials provided with the distribution.
   * - Neither the name of the libjpeg-turbo Project nor the names of its
   *   contributors may be used to endorse or promote products derived from this
   *   software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   */
  
  /* This fuzz target wraps cjpeg in order to test esoteric compression options
     as well as the GIF and Targa readers. */
  
  #define main  cjpeg_main
  #define CJPEG_FUZZER
  extern "C" {
  #include "../cjpeg.c"
  }
  #undef main
  #undef CJPEG_FUZZER
  
  #include <stdint.h>
  #include <unistd.h>
  
  
  extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
  {
    char filename[FILENAME_MAX] = { 0 };
    char *argv1[] = {
      (char *)"cjpeg", (char *)"-precision", (char *)"12",
      (char *)"-dct", (char *)"int", (char *)"-memdst",
      (char *)"-quality", (char *)"100,99,98", (char *)"-restart", (char *)"2",
      (char *)"-sample", (char *)"4x1,2x2,1x2", NULL
    };
    char *argv2[] = {
      (char *)"cjpeg", (char *)"-precision", (char *)"12",
      (char *)"-dct", (char *)"fast", (char *)"-memdst",
      (char *)"-quality", (char *)"90,80,70", (char *)"-rgb",
      (char *)"-sample", (char *)"2x1", (char *)"-smooth", (char *)"50", NULL
    };
    int fd = -1;
  #if defined(__has_feature) && __has_feature(memory_sanitizer)
    char env[18] = "JSIMD_FORCENONE=1";
  
    /* The libjpeg-turbo SIMD extensions produce false positives with
       MemorySanitizer. */
    putenv(env);
  #endif
  
    snprintf(filename, FILENAME_MAX, "/tmp/libjpeg-turbo_cjpeg12_fuzz.XXXXXX");
    if ((fd = mkstemp(filename)) < 0 || write(fd, data, size) < 0)
      goto bailout;
  
    argv1[12] = argv2[13] = filename;
  
    cjpeg_main(13, argv1);
    cjpeg_main(14, argv2);
  
  bailout:
    if (fd >= 0) {
      close(fd);
      if (strlen(filename) > 0) unlink(filename);
    }
    return 0;
  }
  

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