123 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			123 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			C
		
	
	
	
| // SPDX-License-Identifier: GPL-2.0-or-later
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| /*
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| * Copyright (c) 2015-2016 Fujitsu Ltd.
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| * Author: Xiao Yang <yangx.jy@cn.fujitsu.com>
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| */
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| 
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| /*
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| * Test Name: pwritev02
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| *
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| * Description:
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| * 1) pwritev(2) fails if iov_len is invalid.
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| * 2) pwritev(2) fails if the vector count iovcnt is less than zero.
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| * 3) pwritev(2) fails if offset is negative.
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| * 4) pwritev(2) fails when attempts to write from a invalid address
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| * 5) pwritev(2) fails if file descriptor is invalid.
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| * 6) pwritev(2) fails if file descriptor is not open for writing.
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| * 7) pwritev(2) fails if fd is associated with a pipe.
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| *
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| * Expected Result:
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| * 1) pwritev(2) should return -1 and set errno to EINVAL.
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| * 2) pwritev(2) should return -1 and set errno to EINVAL.
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| * 3) pwritev(2) should return -1 and set errno to EINVAL.
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| * 4) pwritev(2) should return -1 and set errno to EFAULT.
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| * 5) pwritev(2) should return -1 and set errno to EBADF.
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| * 6) pwritev(2) should return -1 and set errno to EBADF.
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| * 7) pwritev(2) should return -1 and set errno to ESPIPE.
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| */
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| 
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| #define _GNU_SOURCE
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| 
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| #include <sys/uio.h>
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| #include <unistd.h>
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| #include "tst_test.h"
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| #include "pwritev.h"
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| 
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| #define CHUNK           64
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| 
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| static int fd1;
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| static int fd2;
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| static int fd3 = -1;
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| static int fd4[2];
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| 
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| static char buf[CHUNK];
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| 
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| static struct iovec wr_iovec1[] = {
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| 	{buf, -1},
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| };
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| 
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| static struct iovec wr_iovec2[] = {
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| 	{buf, CHUNK},
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| };
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| 
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| static struct iovec wr_iovec3[] = {
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| 	{(char *)-1, CHUNK},
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| };
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| 
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| static struct tcase {
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| 	int *fd;
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| 	struct iovec *name;
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| 	int count;
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| 	off_t offset;
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| 	int exp_err;
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| } tcases[] = {
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| 	{&fd1, wr_iovec1, 1, 0, EINVAL},
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| 	{&fd1, wr_iovec2, -1, 0, EINVAL},
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| 	{&fd1, wr_iovec2, 1, -1, EINVAL},
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| 	{&fd1, wr_iovec3, 1, 0, EFAULT},
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| 	{&fd3, wr_iovec2, 1, 0, EBADF},
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| 	{&fd2, wr_iovec2, 1, 0, EBADF},
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| 	{&fd4[1], wr_iovec2, 1, 0, ESPIPE}
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| };
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| 
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| static void verify_pwritev(unsigned int n)
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| {
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| 	struct tcase *tc = &tcases[n];
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| 
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| 	TEST(pwritev(*tc->fd, tc->name, tc->count, tc->offset));
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| 	if (TST_RET == 0) {
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| 		tst_res(TFAIL, "pwritev() succeeded unexpectedly");
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| 		return;
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| 	}
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| 
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| 	if (TST_ERR == tc->exp_err) {
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| 		tst_res(TPASS | TTERRNO, "pwritev() failed as expected");
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| 		return;
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| 	}
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| 
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| 	tst_res(TFAIL | TTERRNO, "pwritev() failed unexpectedly, expected %s",
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| 		tst_strerrno(tc->exp_err));
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| }
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| 
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| static void setup(void)
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| {
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| 	fd1 = SAFE_OPEN("file", O_RDWR | O_CREAT, 0644);
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| 	SAFE_FTRUNCATE(fd1, getpagesize());
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| 	fd2 = SAFE_OPEN("file", O_RDONLY | O_CREAT, 0644);
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| 	SAFE_PIPE(fd4);
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| }
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| 
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| static void cleanup(void)
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| {
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| 	if (fd1 > 0)
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| 		SAFE_CLOSE(fd1);
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| 
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| 	if (fd2 > 0)
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| 		SAFE_CLOSE(fd2);
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| 
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| 	if (fd4[0] > 0)
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| 		SAFE_CLOSE(fd4[0]);
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| 
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| 	if (fd4[1] > 0)
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| 		SAFE_CLOSE(fd4[1]);
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| }
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| 
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| static struct tst_test test = {
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| 	.tcnt = ARRAY_SIZE(tcases),
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| 	.setup = setup,
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| 	.cleanup = cleanup,
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| 	.test = verify_pwritev,
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| 	.min_kver = "2.6.30",
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| 	.needs_tmpdir = 1,
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| };
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