unplugged-system/external/ltp/testcases/kernel/syscalls/dup/dup05.c

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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
*
* 06/1994 AUTHOR: Richard Logan CO-PILOT: William Roske
*/
/*\
* [DESCRIPTION]
*
* Basic test for dup(2) of a named pipe descriptor
*/
#include <stdio.h>
#include "tst_test.h"
char Fname[255];
int fd;
static void run(void)
{
TEST(dup(fd));
if (TST_RET == -1) {
tst_res(TFAIL | TTERRNO, "dup failed");
} else {
tst_res(TPASS, "dup returned %ld",
TST_RET);
SAFE_CLOSE(TST_RET);
}
}
void setup(void)
{
fd = -1;
sprintf(Fname, "dupfile");
SAFE_MKFIFO(Fname, 0777);
if ((fd = open(Fname, O_RDWR, 0700)) == -1)
tst_brk(TBROK, "open failed");
}
void cleanup(void)
{
if (fd != -1)
if (close(fd) == -1)
tst_res(TWARN | TERRNO, "close failed");
}
static struct tst_test test = {
.test_all = run,
.setup = setup,
.cleanup = cleanup,
.needs_tmpdir = 1,
};