46 lines
791 B
C
46 lines
791 B
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 Fujitsu Ltd.
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*/
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#include <errno.h>
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#include "tst_test.h"
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#define SIZE 512
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static int fd;
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static char buf[SIZE];
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static void verify_read(void)
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{
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SAFE_LSEEK(fd, 0, SEEK_SET);
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TEST(read(fd, buf, SIZE));
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if (TST_RET == -1)
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tst_res(TFAIL | TTERRNO, "read(2) failed");
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else
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tst_res(TPASS, "read(2) returned %ld", TST_RET);
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}
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static void setup(void)
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{
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memset(buf, '*', SIZE);
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fd = SAFE_OPEN("testfile", O_RDWR | O_CREAT, 0700);
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SAFE_WRITE(1, fd, buf, SIZE);
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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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.test_all = verify_read,
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.setup = setup,
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.cleanup = cleanup,
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.needs_tmpdir = 1,
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};
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