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54 lines
978 B
54 lines
978 B
7 months ago
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) International Business Machines Corp., 2001
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*/
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/*
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* Basic test for pipe().
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*/
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#include <errno.h>
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#include <string.h>
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#include "tst_test.h"
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static int fds[2];
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static void verify_pipe(void)
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{
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int rd_size, wr_size;
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char wrbuf[] = "abcdefghijklmnopqrstuvwxyz";
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char rdbuf[128];
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memset(rdbuf, 0, sizeof(rdbuf));
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TEST(pipe(fds));
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if (TST_RET == -1) {
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tst_res(TFAIL | TTERRNO, "pipe()");
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return;
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}
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wr_size = SAFE_WRITE(1, fds[1], wrbuf, sizeof(wrbuf));
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rd_size = SAFE_READ(0, fds[0], rdbuf, sizeof(rdbuf));
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if (rd_size != wr_size) {
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tst_res(TFAIL, "read() returned %d, expected %d",
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rd_size, wr_size);
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return;
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}
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if ((strncmp(rdbuf, wrbuf, wr_size)) != 0) {
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tst_res(TFAIL, "Wrong data were read back");
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return;
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}
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SAFE_CLOSE(fds[0]);
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SAFE_CLOSE(fds[1]);
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tst_res(TPASS, "pipe() functionality is correct");
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}
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static struct tst_test test = {
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.test_all = verify_pipe,
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};
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