1 /* 2 * Check decoding of fchmod syscall. 3 * 4 * Copyright (c) 2016 Fabien Siron <fabien.siron@epita.fr> 5 * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "tests.h" 32 #include <asm/unistd.h> 33 34 #ifdef __NR_fchmod 35 36 # include <fcntl.h> 37 # include <sys/stat.h> 38 # include <stdio.h> 39 # include <unistd.h> 40 41 int main(void)42 main(void) 43 { 44 static const char fname[] = "fchmod_test_file"; 45 46 int fd = open(fname, O_CREAT|O_RDONLY, 0400); 47 if (fd < 0) 48 perror_msg_and_fail("open"); 49 50 if (unlink(fname)) 51 perror_msg_and_fail("unlink"); 52 53 long rc = syscall(__NR_fchmod, fd, 0600); 54 printf("fchmod(%d, 0600) = %s\n", fd, sprintrc(rc)); 55 56 close(fd); 57 58 rc = syscall(__NR_fchmod, fd, 051); 59 printf("fchmod(%d, 051) = %s\n", fd, sprintrc(rc)); 60 61 rc = syscall(__NR_fchmod, fd, 004); 62 printf("fchmod(%d, 004) = %s\n", fd, sprintrc(rc)); 63 64 puts("+++ exited with 0 +++"); 65 return 0; 66 } 67 68 #else 69 70 SKIP_MAIN_UNDEFINED("__NR_fchmod") 71 72 #endif 73