コード例 #1
0
ファイル: gen-random-bout.cpp プロジェクト: 0bliv10n/s2e
int main(int argc, char *argv[]) {
  unsigned i, narg;
  unsigned sym_stdout = 0;

  if (argc < 2) {
    fprintf(stderr, "Usage: %s <random-seed> <argument-types>\n", argv[0]);
    fprintf(stderr, "       If <random-seed> is 0, time(NULL)*getpid() is used as a seed\n");
    fprintf(stderr, "       <argument-types> are the ones accepted by KLEE: --sym-args, --sym-files etc.\n");
    fprintf(stderr, "   Ex: %s 100 --sym-args 0 2 2 --sym-files 1 8\n", argv[0]);
    exit(1);
  }

  unsigned seed = atoi(argv[1]);
  if (seed)
    srandom(seed);
  else srandom(time(NULL) * getpid());

  KTest b;
  b.numArgs = argc;
  b.args = argv;
  b.symArgvs = 0;
  b.symArgvLen = 0;

  b.numObjects = 0;
  b.objects = (KTestObject *)malloc(MAX * sizeof *b.objects);

  for(i = 2; i < (unsigned)argc; i++) {
    if(strcmp(argv[i], "--sym-args") == 0) {
      unsigned lb = getint(argv[++i]);
      unsigned ub = getint(argv[++i]);
      unsigned nbytes = getint(argv[++i]);

      narg = random() % (ub - lb) + lb;
      push_range(&b, "range", narg);

      while(narg-- > 0) {
        unsigned x = random() % (nbytes + 1);

        // A little different than how klee does it but more natural
        // for random.
        static int total_args;
        char arg[1024];

        sprintf(arg, "arg%d", total_args++);
        push_obj(&b, arg, x, nbytes+1);
      }
    } else if(strcmp(argv[i], "--sym-stdout") == 0) {
      if(!sym_stdout) {
        sym_stdout = 1;
        push_obj(&b, "stdout", 1024, 1024);
        push_obj(&b, "stdout-stat", sizeof(struct stat64), 
                 sizeof(struct stat64));
      }
    } else if(strcmp(argv[i], "--sym-files") == 0) {
      unsigned nfiles = getint(argv[++i]);
      unsigned nbytes = getint(argv[++i]);

      while(nfiles-- > 0) {
        push_obj(&b, "file", nbytes, nbytes);
        push_obj(&b, "file-stat", sizeof(struct stat64), sizeof(struct stat64));
      }

      push_obj(&b, "stdin", nbytes, nbytes);
      push_obj(&b, "stdin-stat", sizeof(struct stat64), sizeof(struct stat64));
    } else {
      fprintf(stderr, "unexpected option <%s>\n", argv[i]);
      assert(0);
    }
  }

  if (!kTest_toFile(&b, "file.bout"))
    assert(0);
  return 0;
}
コード例 #2
0
ファイル: gen-bout.cpp プロジェクト: ccadar/klee
int main(int argc, char *argv[]) {
  unsigned i, argv_copy_idx;
  unsigned file_counter = 0;
  char *stdout_content_filename = NULL;
  char *stdin_content_filename = NULL;
  char *content_filenames_list[1024];
  char **argv_copy;

  if (argc < 2)
    print_usage_and_exit(argv[0]);

  KTest b;
  b.symArgvs = 0;
  b.symArgvLen = 0;

  b.numObjects = 0;
  b.objects = (KTestObject *)malloc(MAX * sizeof *b.objects);

  if ((argv_copy = (char **)malloc(sizeof(char *) * argc * 2)) == NULL) {
    fprintf(stderr, "Could not allocate more memory\n");
    return 1;
  }

  argv_copy[0] = (char *)malloc(strlen(argv[0]) + 1);
  strcpy(argv_copy[0], argv[0]);
  argv_copy_idx = 1;

  for (i = 1; i < (unsigned)argc; i++) {
    if (strcmp(argv[i], "--sym-stdout") == 0 ||
        strcmp(argv[i], "-sym-stdout") == 0) {
      if (++i == (unsigned)argc || argv[i][0] == '-')
        print_usage_and_exit(argv[0]);

      if (stdout_content_filename)
        print_usage_and_exit(argv[0]);

      stdout_content_filename = argv[i];

    } else if (strcmp(argv[i], "--sym-stdin") == 0 ||
               strcmp(argv[i], "-sym-stdin") == 0) {
      if (++i == (unsigned)argc || argv[i][0] == '-')
        print_usage_and_exit(argv[0]);

      if (stdin_content_filename)
        print_usage_and_exit(argv[0]);

      stdin_content_filename = argv[i];
    } else if (strcmp(argv[i], "--sym-file") == 0 ||
               strcmp(argv[i], "-sym-file") == 0) {
      if (++i == (unsigned)argc || argv[i][0] == '-')
        print_usage_and_exit(argv[0]);

      content_filenames_list[file_counter++] = argv[i];
    } else {
      long nbytes = strlen(argv[i]) + 1;
      static int total_args = 0;

      char arg[1024];
      sprintf(arg, "arg%d", total_args++);
      push_obj(&b, (const char *)arg, nbytes, (unsigned char *)argv[i]);

      char *buf1 = (char *)malloc(1024);
      char *buf2 = (char *)malloc(1024);
      strcpy(buf1, "-sym-arg");
      sprintf(buf2, "%ld", nbytes - 1);
      argv_copy[argv_copy_idx++] = buf1;
      argv_copy[argv_copy_idx++] = buf2;
    }
  }

  if (file_counter > 0) {
    FILE *fp;
    struct stat64 file_stat;
    char *content_filename = content_filenames_list[file_counter - 1];

    if ((fp = fopen(content_filename, "r")) == NULL ||
        stat64(content_filename, &file_stat) < 0) {
      fprintf(stderr, "Failure opening %s\n", content_filename);
      print_usage_and_exit(argv[0]);
    }

    long nbytes = file_stat.st_size;
    char filename[7] = "A-data";
    char statname[12] = "A-data-stat";

    unsigned char *file_content, *fptr;
    if ((file_content = (unsigned char *)malloc(nbytes)) == NULL) {
      fprintf(stderr, "Memory allocation failure\n");
      exit(1);
    }

    int read_char;
    fptr = file_content;
    while ((read_char = fgetc(fp)) != EOF) {
      *fptr = (unsigned char)read_char;
      fptr++;
    }

    push_obj(&b, filename, nbytes, file_content);
    push_obj(&b, statname, sizeof(struct stat64), (unsigned char *)&file_stat);

    free(file_content);

    char *buf1 = (char *)malloc(1024);
    char *buf2 = (char *)malloc(1024);
    char *buf3 = (char *)malloc(1024);
    sprintf(buf1, "-sym-files");
    sprintf(buf2, "1");
    sprintf(buf3, "%ld", nbytes);
    argv_copy[argv_copy_idx++] = buf1;
    argv_copy[argv_copy_idx++] = buf2;
    argv_copy[argv_copy_idx++] = buf3;
  }

  if (stdin_content_filename) {
    FILE *fp;
    struct stat64 file_stat;
    char filename[6] = "stdin";
    char statname[11] = "stdin-stat";

    if ((fp = fopen(stdin_content_filename, "r")) == NULL ||
        stat64(stdin_content_filename, &file_stat) < 0) {
      fprintf(stderr, "Failure opening %s\n", stdin_content_filename);
      print_usage_and_exit(argv[0]);
    }

    unsigned char *file_content, *fptr;
    if ((file_content = (unsigned char *)malloc(file_stat.st_size)) == NULL) {
      fprintf(stderr, "Memory allocation failure\n");
      exit(1);
    }

    int read_char;
    fptr = file_content;
    while ((read_char = fgetc(fp)) != EOF) {
      *fptr = (unsigned char)read_char;
      fptr++;
    }

    push_obj(&b, filename, file_stat.st_size, file_content);
    push_obj(&b, statname, sizeof(struct stat64), (unsigned char *)&file_stat);

    free(file_content);

    char *buf1 = (char *)malloc(1024);
    char *buf2 = (char *)malloc(1024);
    sprintf(buf1, "-sym-stdin");
    sprintf(buf2, "%ld", file_stat.st_size);
    argv_copy[argv_copy_idx++] = buf1;
    argv_copy[argv_copy_idx++] = buf2;
  }

  if (stdout_content_filename) {
    FILE *fp;
    struct stat64 file_stat;
    unsigned char file_content[1024];
    char filename[7] = "stdout";
    char statname[12] = "stdout-stat";

    if ((fp = fopen(stdout_content_filename, "r")) == NULL ||
        stat64(stdout_content_filename, &file_stat) < 0) {
      fprintf(stderr, "Failure opening %s\n", stdout_content_filename);
      print_usage_and_exit(argv[0]);
    }

    int read_char;
    for (int i = 0; i < file_stat.st_size && i < 1024; ++i) {
      read_char = fgetc(fp);
      file_content[i] = (unsigned char)read_char;
    }

    for (int i = file_stat.st_size; i < 1024; ++i) {
      file_content[i] = 0;
    }

    file_stat.st_size = 1024;

    push_obj(&b, filename, 1024, file_content);
    push_obj(&b, statname, sizeof(struct stat64), (unsigned char *)&file_stat);

    char *buf = (char *)malloc(1024);
    sprintf(buf, "-sym-stdout");
    argv_copy[argv_copy_idx++] = buf;
  }

  argv_copy[argv_copy_idx] = 0;

  b.numArgs = argv_copy_idx;
  b.args = argv_copy;

  push_range(&b, "model_version", 1);

  if (!kTest_toFile(&b, "file.bout"))
    assert(0);

  for (int i = 0; i < (int)b.numObjects; ++i) {
    free(b.objects[i].name);
    free(b.objects[i].bytes);
  }
  free(b.objects);

  for (int i = 0; i < (int)argv_copy_idx; ++i) {
    free(argv_copy[i]);
  }
  free(argv_copy);

  return 0;
}