95 lines
1.8 KiB
C
95 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2014 Fujitsu Ltd.
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* Author: Xing Gu <gux.fnst@cn.fujitsu.com>
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*/
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/*
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* Description:
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* Verify that,
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* 1) tee() returns -1 and sets errno to EINVAL if fd_in does
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* not refer to a pipe.
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* 2) tee() returns -1 and sets errno to EINVAL if fd_out does
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* not refer to a pipe.
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* 3) tee() returns -1 and sets errno to EINVAL if fd_in and
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* fd_out refer to the same pipe.
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*/
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#define _GNU_SOURCE
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include "tst_test.h"
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#include "lapi/tee.h"
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#define TEST_FILE "testfile"
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#define STR "abcdefghigklmnopqrstuvwxyz"
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#define TEE_TEST_LEN 10
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static int fd;
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static int pipes[2];
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static struct tcase {
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int *fdin;
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int *fdout;
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int exp_errno;
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} tcases[] = {
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{ &fd, &pipes[1], EINVAL },
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{ &pipes[0], &fd, EINVAL },
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{ &pipes[0], &pipes[1], EINVAL },
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};
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static void setup(void)
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{
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fd = SAFE_OPEN(TEST_FILE, O_RDWR | O_CREAT, 0644);
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SAFE_PIPE(pipes);
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SAFE_WRITE(1, pipes[1], STR, sizeof(STR) - 1);
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}
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static void tee_verify(unsigned int n)
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{
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struct tcase *tc = &tcases[n];
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TEST(tee(*(tc->fdin), *(tc->fdout), TEE_TEST_LEN, 0));
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if (TST_RET != -1) {
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tst_res(TFAIL, "tee() returned %ld, "
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"expected -1, errno:%d", TST_RET,
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tc->exp_errno);
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return;
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}
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if (TST_ERR != tc->exp_errno) {
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tst_res(TFAIL | TTERRNO,
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"tee() failed unexpectedly; expected: %d - %s",
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tc->exp_errno, tst_strerrno(tc->exp_errno));
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return;
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}
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tst_res(TPASS | TTERRNO, "tee() failed as expected");
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}
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static void cleanup(void)
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{
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if (fd > 0)
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SAFE_CLOSE(fd);
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if (pipes[0] > 0)
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SAFE_CLOSE(pipes[0]);
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if (pipes[1] > 0)
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SAFE_CLOSE(pipes[1]);
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}
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static struct tst_test test = {
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.setup = setup,
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.cleanup = cleanup,
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.test = tee_verify,
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.tcnt = ARRAY_SIZE(tcases),
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.needs_tmpdir = 1,
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.min_kver = "2.6.17",
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};
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