118 lines
2.6 KiB
C
118 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2019 FUJITSU LIMITED. All rights reserved.
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* Author: Jinhui Huang <huangjh.jy@cn.fujitsu.com>
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*/
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/*
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* Description:
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* Check various errnos for pwritev2(2).
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* 1) pwritev2() fails and sets errno to EINVAL if iov_len is invalid.
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* 2) pwritev2() fails and sets errno to EINVAL if the vector count iovcnt is
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* less than zero.
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* 3) pwritev2() fails and sets errno to EOPNOTSUPP if flag is invalid.
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* 4) pwritev2() fails and sets errno to EFAULT when writing data from invalid
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* address.
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* 5) pwritev2() fails and sets errno to EBADF if file descriptor is invalid.
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* 6) pwritev2() fails and sets errno to EBADF if file descriptor is open for
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* reading.
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* 7) pwritev2() fails and sets errno to ESPIPE if fd is associated with a pipe.
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*/
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#define _GNU_SOURCE
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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 "lapi/pwritev2.h"
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#define CHUNK 64
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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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static char buf[CHUNK];
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static struct iovec wr_iovec1[] = {
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{buf, -1},
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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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static struct iovec wr_iovec3[] = {
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{NULL, CHUNK},
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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 flag;
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int exp_err;
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} tcases[] = {
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{&fd1, wr_iovec1, 1, 0, 0, EINVAL},
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{&fd1, wr_iovec2, -1, 0, 0, EINVAL},
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{&fd1, wr_iovec2, 1, 1, -1, EOPNOTSUPP},
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{&fd1, wr_iovec3, 1, 0, 0, EFAULT},
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{&fd3, wr_iovec2, 1, 0, 0, EBADF},
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{&fd2, wr_iovec2, 1, 0, 0, EBADF},
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{&fd4[0], wr_iovec2, 1, 0, 0, ESPIPE},
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};
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static void verify_pwritev2(unsigned int n)
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{
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struct tcase *tc = &tcases[n];
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TEST(pwritev2(*tc->fd, tc->name, tc->count, tc->offset, tc->flag));
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if (TST_RET == 0) {
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tst_res(TFAIL, "pwritev2() succeeded unexpectedly");
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return;
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}
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if (TST_ERR == tc->exp_err) {
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tst_res(TPASS | TTERRNO, "pwritev2() failed as expected");
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return;
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}
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tst_res(TFAIL | TTERRNO, "pwritev2() failed unexpectedly, expected %s",
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tst_strerrno(tc->exp_err));
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}
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static void setup(void)
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{
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fd1 = SAFE_OPEN("file1", O_RDWR | O_CREAT, 0644);
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SAFE_FTRUNCATE(fd1, getpagesize());
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fd2 = SAFE_OPEN("file2", O_RDONLY | O_CREAT, 0644);
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SAFE_PIPE(fd4);
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wr_iovec3[0].iov_base = tst_get_bad_addr(NULL);
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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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if (fd2 > 0)
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SAFE_CLOSE(fd2);
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if (fd4[0] > 0)
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SAFE_CLOSE(fd4[0]);
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if (fd4[1] > 0)
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SAFE_CLOSE(fd4[1]);
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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_pwritev2,
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.needs_tmpdir = 1,
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};
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