66 lines
1.2 KiB
C
66 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
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* Copyright (c) 2017 Cyril Hrubis <chrubis@suse.cz>
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*/
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/*
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* Basic test for fcntl(2) using F_DUPFD argument.
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*/
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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 <errno.h>
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#include <stdio.h>
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#include "tst_test.h"
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static int fd;
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static char fname[256];
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static const int min_fds[] = {0, 1, 2, 3, 10, 100};
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static void verify_fcntl(unsigned int n)
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{
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int min_fd = min_fds[n];
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TEST(fcntl(fd, F_DUPFD, min_fd));
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if (TST_RET == -1) {
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tst_res(TFAIL | TTERRNO, "fcntl(%s, F_DUPFD, %i) failed",
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fname, min_fd);
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return;
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}
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if (TST_RET < min_fd) {
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tst_res(TFAIL, "fcntl(%s, F_DUPFD, %i) returned %ld < %i",
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fname, min_fd, TST_RET, min_fd);
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}
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tst_res(TPASS, "fcntl(%s, F_DUPFD, %i) returned %ld",
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fname, min_fd, TST_RET);
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SAFE_CLOSE(TST_RET);
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}
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static void setup(void)
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{
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sprintf(fname, "fcntl02_%d", getpid());
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fd = SAFE_OPEN(fname, O_RDWR | O_CREAT, 0700);
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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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}
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static struct tst_test test = {
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.needs_tmpdir = 1,
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.test = verify_fcntl,
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.tcnt = ARRAY_SIZE(min_fds),
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.setup = setup,
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.cleanup = cleanup,
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};
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