89 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			89 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			C
		
	
	
	
| // SPDX-License-Identifier: GPL-2.0-or-later
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| /*
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|  * Copyright (c) Red Hat Inc., 2007
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|  */
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| 
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| /*
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|  * NAME
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|  *	posix_fadvise02.c
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|  *
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|  * DESCRIPTION
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|  *	Check the value that posix_fadvise returns for wrong file descriptor.
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|  *
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|  * USAGE
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|  *	posix_fadvise02
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|  *
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|  * HISTORY
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|  *	11/2007 Initial version by Masatake YAMATO <yamato@redhat.com>
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|  *
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|  * RESTRICTIONS
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|  *	None
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|  */
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| 
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| #include <fcntl.h>
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| #include <unistd.h>
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| #include <signal.h>
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| #include <errno.h>
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| #include <string.h>
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| 
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| #include "tst_test.h"
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| #include "lapi/syscalls.h"
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| 
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| #define WRONG_FD       42	/* The number has no meaning.
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| 				   Just used as something wrong fd */
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| 
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| int defined_advise[] = {
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| 	POSIX_FADV_NORMAL,
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| 	POSIX_FADV_SEQUENTIAL,
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| 	POSIX_FADV_RANDOM,
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| 	POSIX_FADV_NOREUSE,
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| 	POSIX_FADV_WILLNEED,
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| 	POSIX_FADV_DONTNEED,
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| };
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| 
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| static void verify_fadvise(unsigned int n)
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| {
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| 	TEST(posix_fadvise
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| 	     (WRONG_FD, 0, 0, defined_advise[n]));
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| 
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| 	if (TST_RET == 0) {
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| 		tst_res(TFAIL, "call succeeded unexpectedly");
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| 		return;
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| 	}
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| 
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| 	/* Man page says:
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| 	   "On error, an error number is returned." */
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| 	if (TST_RET == EBADF) {
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| 		tst_res(TPASS, "expected failure - "
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| 			"returned value = %ld : %s",
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| 			TST_RET, tst_strerrno(TST_RET));
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| 	} else {
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| 		tst_res(TFAIL,
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| 			"unexpected returnd value - %ld : %s - "
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| 			"expected %d", TST_RET,
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| 			tst_strerrno(TST_RET), EBADF);
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| 	}
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| }
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| 
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| static void setup(void)
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| {
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| 	/* Make WRONG_FD really wrong. */
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| retry:
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| 	errno = 0;
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| 	if (close(WRONG_FD) != 0) {
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| 		if (errno == EBADF) {}	/* Good. Do nothing. */
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| 		if (errno == EINTR)
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| 			goto retry;
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| 		else if (errno == EIO)
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| 			tst_brk(TBROK,
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| 				"Unable to close a file descriptor(%d): %s\n",
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| 				WRONG_FD, tst_strerrno(EIO));
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| 	}
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| }
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| 
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| static struct tst_test test = {
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| 	.setup = setup,
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| 	.test = verify_fadvise,
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| 	.tcnt = ARRAY_SIZE(defined_advise),
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| };
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