69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
// 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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* DESCRIPTION
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* Testcase to test that getcwd(2) sets errno correctly.
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* 1) getcwd(2) fails if buf points to a bad address.
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* 2) getcwd(2) fails if the size is invalid.
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* 3) getcwd(2) fails if the size is set to 0.
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* 4) getcwd(2) fails if the size is set to 1.
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* 5) getcwd(2) fails if buf points to NULL and the size is set to 1.
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*
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* Expected Result:
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* 1) getcwd(2) should return NULL and set errno to EFAULT.
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* 2) getcwd(2) should return NULL and set errno to ENOMEM.
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* 3) getcwd(2) should return NULL and set errno to EINVAL.
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* 4) getcwd(2) should return NULL and set errno to ERANGE.
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* 5) getcwd(2) should return NULL and set errno to ERANGE.
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*
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*/
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#include <errno.h>
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#include <unistd.h>
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#include <limits.h>
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#include "tst_test.h"
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static char buffer[5];
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static struct t_case {
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char *buf;
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size_t size;
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int exp_err;
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} tcases[] = {
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{(void *)-1, PATH_MAX, EFAULT},
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{NULL, (size_t)-1, ENOMEM},
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{buffer, 0, EINVAL},
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{buffer, 1, ERANGE},
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{NULL, 1, ERANGE}
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};
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static void verify_getcwd(unsigned int n)
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{
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struct t_case *tc = &tcases[n];
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char *res;
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errno = 0;
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res = getcwd(tc->buf, tc->size);
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TST_ERR = errno;
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if (res) {
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tst_res(TFAIL, "getcwd() succeeded unexpectedly");
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return;
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}
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if (TST_ERR != tc->exp_err) {
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tst_res(TFAIL | TTERRNO, "getcwd() failed unexpectedly, expected %s",
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tst_strerrno(tc->exp_err));
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return;
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}
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tst_res(TPASS | TTERRNO, "getcwd() failed as expected");
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}
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static struct tst_test test = {
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.tcnt = ARRAY_SIZE(tcases),
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.test = verify_getcwd
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};
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