/* SPDX-License-Identifier: GPL-3.0-or-later */ /* * tar_fuzz.c * * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at> */ #include "config.h" #include "util.h" #include "tar.h" #include <unistd.h> #include <stdlib.h> #include <stdio.h> #include <fcntl.h> int main(int argc, char **argv) { tar_header_decoded_t hdr; int fd, ret; if (argc != 2) { fputs("usage: tar_fuzz <tarball>\n", stderr); return EXIT_FAILURE; } fd = open(argv[1], O_RDONLY); if (fd < 0) { perror(argv[1]); return EXIT_FAILURE; } for (;;) { ret = read_header(fd, &hdr); if (ret > 0) break; if (ret < 0) goto fail; ret = lseek(fd, hdr.sb.st_size, SEEK_CUR); clear_header(&hdr); if (ret) goto fail; } close(fd); return EXIT_SUCCESS; fail: close(fd); return EXIT_FAILURE; }