| 1 | /*
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| 2 | * Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL licenses, (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | * or in the file LICENSE in the source distribution.
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| 9 | */
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| 10 |
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| 11 | /*
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| 12 | * Given a list of files, run each of them through the fuzzer. Note that
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| 13 | * failure will be indicated by some kind of crash. Switching on things like
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| 14 | * asan improves the test.
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| 15 | */
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| 16 |
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| 17 | #include <stdio.h>
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| 18 | #include <stdlib.h>
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| 19 | #include <string.h>
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| 20 | #include <sys/stat.h>
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| 21 | #include <openssl/crypto.h>
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| 22 | #include "fuzzer.h"
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| 23 | #include "internal/o_dir.h"
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| 24 |
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| 25 | #if defined(_WIN32) && defined(_MAX_PATH)
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| 26 | # define PATH_MAX _MAX_PATH
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| 27 | #endif
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| 28 |
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| 29 | #ifndef PATH_MAX
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| 30 | # define PATH_MAX 4096
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| 31 | #endif
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| 32 |
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| 33 | # if !defined(S_ISREG)
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| 34 | # define S_ISREG(m) ((m) & S_IFREG)
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| 35 | # endif
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| 36 |
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| 37 | static void testfile(const char *pathname)
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| 38 | {
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| 39 | struct stat st;
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| 40 | FILE *f;
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| 41 | unsigned char *buf;
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| 42 | size_t s;
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| 43 |
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| 44 | if (stat(pathname, &st) < 0 || !S_ISREG(st.st_mode))
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| 45 | return;
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| 46 | printf("# %s\n", pathname);
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| 47 | fflush(stdout);
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| 48 | f = fopen(pathname, "rb");
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| 49 | if (f == NULL)
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| 50 | return;
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| 51 | buf = malloc(st.st_size);
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| 52 | if (buf != NULL) {
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| 53 | s = fread(buf, 1, st.st_size, f);
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| 54 | OPENSSL_assert(s == (size_t)st.st_size);
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| 55 | FuzzerTestOneInput(buf, s);
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| 56 | free(buf);
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| 57 | }
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| 58 | fclose(f);
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| 59 | }
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| 60 |
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| 61 | int main(int argc, char **argv) {
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| 62 | int n;
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| 63 |
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| 64 | FuzzerInitialize(&argc, &argv);
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| 65 |
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| 66 | for (n = 1; n < argc; ++n) {
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| 67 | size_t dirname_len = strlen(argv[n]);
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| 68 | const char *filename = NULL;
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| 69 | char *pathname = NULL;
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| 70 | OPENSSL_DIR_CTX *ctx = NULL;
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| 71 | int wasdir = 0;
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| 72 |
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| 73 | /*
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| 74 | * We start with trying to read the given path as a directory.
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| 75 | */
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| 76 | while ((filename = OPENSSL_DIR_read(&ctx, argv[n])) != NULL) {
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| 77 | wasdir = 1;
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| 78 | if (pathname == NULL) {
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| 79 | pathname = malloc(PATH_MAX);
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| 80 | if (pathname == NULL)
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| 81 | break;
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| 82 | strcpy(pathname, argv[n]);
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| 83 | #ifdef __VMS
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| 84 | if (strchr(":<]", pathname[dirname_len - 1]) == NULL)
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| 85 | #endif
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| 86 | pathname[dirname_len++] = '/';
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| 87 | pathname[dirname_len] = '\0';
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| 88 | }
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| 89 | strcpy(pathname + dirname_len, filename);
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| 90 | testfile(pathname);
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| 91 | }
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| 92 | OPENSSL_DIR_end(&ctx);
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| 93 |
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| 94 | /* If it wasn't a directory, treat it as a file instead */
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| 95 | if (!wasdir)
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| 96 | testfile(argv[n]);
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| 97 |
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| 98 | free(pathname);
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| 99 | }
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| 100 |
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| 101 | FuzzerCleanup();
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| 102 |
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| 103 | return 0;
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| 104 | }
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