106 lines
2.1 KiB
C
106 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) Bull S.A. 2001
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* Copyright (c) International Business Machines Corp., 2001
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* 07/2001 Ported by Wayne Boyer
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* 05/2002 Ported by Jacky Malcles
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*/
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/*\
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* [Description]
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*
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* Tests readv() failures:
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*
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* - EINVAL the sum of the iov_len values overflows an ssize_t value
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* - EFAULT buffer is outside the accessible address space
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* - EINVAL the vector count iovcnt is less than zero
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* - EISDIR the file descriptor is a directory
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* - EBADF the file descriptor is not valid
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*/
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#include <sys/uio.h>
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#include "tst_test.h"
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#define K_1 1024
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#define MODES 0700
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#define CHUNK 64
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static int badfd = -1;
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static int fd_dir, fd_file;
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static char buf1[K_1];
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const char *TEST_DIR = "test_dir";
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const char *TEST_FILE = "test_file";
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static struct iovec invalid_iovec[] = {
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{buf1, -1},
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{buf1 + CHUNK, CHUNK},
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{buf1 + 2*CHUNK, CHUNK},
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};
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static struct iovec large_iovec[] = {
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{buf1, K_1},
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{buf1 + CHUNK, K_1},
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{buf1 + CHUNK*2, K_1},
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};
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static struct iovec efault_iovec[] = {
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{NULL, CHUNK},
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{buf1 + CHUNK, CHUNK},
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{buf1 + 2*CHUNK, CHUNK},
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};
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static struct iovec valid_iovec[] = {
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{buf1, CHUNK},
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};
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static struct tcase {
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int *fd;
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void *buf;
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int count;
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int exp_error;
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} tcases[] = {
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{&fd_file, invalid_iovec, 1, EINVAL},
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{&fd_file, efault_iovec, 3, EFAULT},
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{&fd_file, large_iovec, -1, EINVAL},
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{&fd_dir, valid_iovec, 1, EISDIR},
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{&badfd, valid_iovec, 3, EBADF},
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};
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static void verify_readv(unsigned int n)
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{
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struct tcase *tc = &tcases[n];
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TST_EXP_FAIL2(readv(*tc->fd, tc->buf, tc->count), tc->exp_error,
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"readv(%d, %p, %d)", *tc->fd, tc->buf, tc->count);
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}
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static void setup(void)
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{
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SAFE_FILE_PRINTF(TEST_FILE, "test");
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fd_file = SAFE_OPEN(TEST_FILE, O_RDONLY);
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efault_iovec[0].iov_base = tst_get_bad_addr(NULL);
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SAFE_MKDIR(TEST_DIR, MODES);
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fd_dir = SAFE_OPEN(TEST_DIR, O_RDONLY);
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}
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static void cleanup(void)
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{
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if (fd_file > 0)
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SAFE_CLOSE(fd_file);
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if (fd_dir > 0)
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SAFE_CLOSE(fd_dir);
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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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.needs_tmpdir = 1,
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.setup = setup,
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.cleanup = cleanup,
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.test = verify_readv,
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};
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