79 lines
1.9 KiB
C
79 lines
1.9 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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*/
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/*
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* Description:
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* The testcase checks the various errnos of the unlink(2).
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* 1) unlink() returns ENOENT if file doesn't exist.
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* 2) unlink() returns ENOENT if path is empty.
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* 3) unlink() returns ENOENT if path contains a non-existent file.
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* 4) unlink() returns EFAULT if address is invalid.
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* 5) unlink() returns ENOTDIR if path contains a regular file.
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* 6) unlink() returns ENAMETOOLONG if path contains a regular file.
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*/
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#include <errno.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/param.h> /* for PATH_MAX */
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#include "tst_test.h"
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static char longpathname[PATH_MAX + 2];
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static struct test_case_t {
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char *name;
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char *desc;
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int exp_errno;
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} tcases[] = {
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{"nonexistfile", "non-existent file", ENOENT},
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{"", "path is empty string", ENOENT},
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{"nefile/file", "path contains a non-existent file", ENOENT},
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{NULL, "invalid address", EFAULT},
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{"file/file", "path contains a regular file", ENOTDIR},
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{longpathname, "pathname too long", ENAMETOOLONG},
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};
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static void verify_unlink(unsigned int n)
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{
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struct test_case_t *tc = &tcases[n];
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TEST(unlink(tc->name));
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if (TST_RET != -1) {
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tst_res(TFAIL, "unlink(<%s>) succeeded unexpectedly",
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tc->desc);
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return;
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}
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if (TST_ERR == tc->exp_errno) {
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tst_res(TPASS | TTERRNO, "unlink(<%s>) failed as expected",
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tc->desc);
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} else {
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tst_res(TFAIL | TTERRNO,
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"unlink(<%s>) failed, expected errno: %s",
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tc->desc, tst_strerrno(tc->exp_errno));
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}
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}
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static void setup(void)
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{
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unsigned int n;
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SAFE_TOUCH("file", 0777, NULL);
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memset(longpathname, 'a', PATH_MAX + 2);
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for (n = 0; n < ARRAY_SIZE(tcases); n++) {
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if (!tcases[n].name)
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tcases[n].name = tst_get_bad_addr(NULL);
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}
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}
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static struct tst_test test = {
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.needs_tmpdir = 1,
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.setup = setup,
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.tcnt = ARRAY_SIZE(tcases),
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.test = verify_unlink,
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};
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