tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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main.c (3103B)

      1 /*
      2 * Copyright © 2018, VideoLAN and dav1d authors
      3 * Copyright © 2018, Janne Grunau
      4 * All rights reserved.
      5 *
      6 * Redistribution and use in source and binary forms, with or without
      7 * modification, are permitted provided that the following conditions are met:
      8 *
      9 * 1. Redistributions of source code must retain the above copyright notice, this
     10 *    list of conditions and the following disclaimer.
     11 *
     12 * 2. Redistributions in binary form must reproduce the above copyright notice,
     13 *    this list of conditions and the following disclaimer in the documentation
     14 *    and/or other materials provided with the distribution.
     15 *
     16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
     17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     19 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
     20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26 */
     27 
     28 #include "config.h"
     29 
     30 #include <errno.h>
     31 #include <inttypes.h>
     32 #include <limits.h>
     33 #include <stddef.h>
     34 #include <stdint.h>
     35 #include <stdlib.h>
     36 #include <string.h>
     37 #include <stdio.h>
     38 
     39 #include "dav1d_fuzzer.h"
     40 
     41 // expects ivf input
     42 
     43 int main(int argc, char *argv[]) {
     44    int ret = -1;
     45    FILE *f = NULL;
     46    int64_t fsize;
     47    const char *filename = NULL;
     48    uint8_t *data = NULL;
     49    size_t size = 0;
     50 
     51    if (LLVMFuzzerInitialize(&argc, &argv)) {
     52        return 1;
     53    }
     54 
     55    if (argc != 2) {
     56        fprintf(stdout, "Usage:\n%s fuzzing_testcase.ivf\n", argv[0]);
     57        return -1;
     58    }
     59    filename = argv[1];
     60 
     61    if (!(f = fopen(filename, "rb"))) {
     62        fprintf(stderr, "failed to open %s: %s\n", filename, strerror(errno));
     63        goto error;
     64    }
     65 
     66    if (fseeko(f, 0, SEEK_END) == -1) {
     67        fprintf(stderr, "fseek(%s, 0, SEEK_END) failed: %s\n", filename,
     68                strerror(errno));
     69        goto error;
     70    }
     71    if ((fsize = ftello(f)) == -1) {
     72        fprintf(stderr, "ftell(%s) failed: %s\n", filename, strerror(errno));
     73        goto error;
     74    }
     75    rewind(f);
     76 
     77    if (fsize < 0 || fsize > INT_MAX) {
     78        fprintf(stderr, "%s is too large: %"PRId64"\n", filename, fsize);
     79        goto error;
     80    }
     81    size = (size_t)fsize;
     82 
     83    if (!(data = malloc(size))) {
     84        fprintf(stderr, "failed to allocate: %zu bytes\n", size);
     85        goto error;
     86    }
     87 
     88    if (fread(data, size, 1, f) == size) {
     89        fprintf(stderr, "failed to read %zu bytes from %s: %s\n", size,
     90                filename, strerror(errno));
     91        goto error;
     92    }
     93 
     94    ret = LLVMFuzzerTestOneInput(data, size);
     95 
     96 error:
     97    free(data);
     98    if (f) fclose(f);
     99    return ret;
    100 }