/* * Check decoding of fchmod syscall. * * Copyright (c) 2016 Fabien Siron * Copyright (c) 2016 Dmitry V. Levin * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. */ #include "tests.h" #include #ifdef __NR_fchmod # include # include # include # include int main(void) { static const char fname[] = "fchmod_test_file"; int fd = open(fname, O_CREAT|O_RDONLY, 0400); if (fd < 0) perror_msg_and_fail("open"); if (unlink(fname)) perror_msg_and_fail("unlink"); long rc = syscall(__NR_fchmod, fd, 0600); printf("fchmod(%d, 0600) = %s\n", fd, sprintrc(rc)); close(fd); rc = syscall(__NR_fchmod, fd, 051); printf("fchmod(%d, 051) = %s\n", fd, sprintrc(rc)); rc = syscall(__NR_fchmod, fd, 004); printf("fchmod(%d, 004) = %s\n", fd, sprintrc(rc)); puts("+++ exited with 0 +++"); return 0; } #else SKIP_MAIN_UNDEFINED("__NR_fchmod") #endif