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      1 /*
      2  * Check decoding of pipe2 syscall.
      3  *
      4  * Copyright (c) 2015-2017 Dmitry V. Levin <ldv (at) altlinux.org>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. The name of the author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #include "tests.h"
     31 #include <asm/unistd.h>
     32 
     33 #ifdef __NR_pipe2
     34 
     35 # include <fcntl.h>
     36 # include <stdio.h>
     37 # include <unistd.h>
     38 
     39 int
     40 main(void)
     41 {
     42 	int *const fds = tail_alloc(sizeof(*fds) * 2);
     43 	int *const efault = fds + 1;
     44 	long rc;
     45 
     46 	rc = syscall(__NR_pipe2, fds, F8ILL_KULONG_MASK | O_NONBLOCK);
     47 	if (rc)
     48 		perror_msg_and_skip("pipe2");
     49 	printf("pipe2([%d, %d], O_NONBLOCK) = 0\n", fds[0], fds[1]);
     50 
     51 	rc = syscall(__NR_pipe2, efault, F8ILL_KULONG_MASK);
     52 	printf("pipe2(%p, 0) = %s\n", efault, sprintrc(rc));
     53 
     54 	if (F8ILL_KULONG_SUPPORTED) {
     55 		const kernel_ulong_t ill = f8ill_ptr_to_kulong(fds);
     56 		rc = syscall(__NR_pipe2, ill, 0);
     57 		printf("pipe2(%#llx, 0) = %s\n",
     58 		       (unsigned long long) ill, sprintrc(rc));
     59 	}
     60 
     61 	puts("+++ exited with 0 +++");
     62 	return 0;
     63 }
     64 
     65 #else
     66 
     67 SKIP_MAIN_UNDEFINED("__NR_pipe2")
     68 
     69 #endif
     70