97 lines
2.1 KiB
C
97 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2016 Fujitsu Ltd.
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* Author: Jinbao Huang <huangjb.jy@cn.fujitsu.com>
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*/
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/*
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* Test Name: lgetxattr02
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*
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* Description:
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* 1) lgetxattr(2) fails if the named attribute does not exist.
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* 2) lgetxattr(2) fails if the size of the value buffer is too small
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* to hold the result.
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* 3) lgetxattr(2) fails when attemptes to read from a invalid address.
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*
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* Expected Result:
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* 1) lgetxattr(2) should return -1 and set errno to ENODATA.
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* 2) lgetxattr(2) should return -1 and set errno to ERANGE.
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* 3) lgetxattr(2) should return -1 and set errno to EFAULT.
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*/
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#include "config.h"
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#include <errno.h>
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#include <sys/types.h>
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#include <string.h>
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#ifdef HAVE_SYS_XATTR_H
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# include <sys/xattr.h>
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#endif
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#include "tst_test.h"
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#ifdef HAVE_SYS_XATTR_H
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#define SECURITY_KEY "security.ltptest"
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#define VALUE "this is a test value"
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static struct test_case {
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const char *path;
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size_t size;
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int exp_err;
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} tcase[] = {
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{"testfile", sizeof(VALUE), ENODATA},
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{"symlink", 1, ERANGE},
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{(char *)-1, sizeof(VALUE), EFAULT}
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};
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static void verify_lgetxattr(unsigned int n)
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{
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struct test_case *tc = tcase + n;
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char buf[tc->size];
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TEST(lgetxattr(tc->path, SECURITY_KEY, buf, sizeof(buf)));
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if (TST_RET != -1) {
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tst_res(TFAIL, "lgetxattr() 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, "lgetxattr() failed unexpectedlly, "
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"expected %s", tst_strerrno(tc->exp_err));
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} else {
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tst_res(TPASS | TTERRNO, "lgetxattr() failed as expected");
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}
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}
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static void setup(void)
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{
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int res;
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SAFE_TOUCH("testfile", 0644, NULL);
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SAFE_SYMLINK("testfile", "symlink");
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res = lsetxattr("symlink", SECURITY_KEY, VALUE, strlen(VALUE), XATTR_CREATE);
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if (res == -1) {
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if (errno == ENOTSUP) {
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tst_brk(TCONF, "no xattr support in fs or "
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"mounted without user_xattr option");
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} else {
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tst_brk(TBROK | TERRNO, "lsetxattr(%s) failed",
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SECURITY_KEY);
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}
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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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.needs_root = 1,
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.test = verify_lgetxattr,
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.tcnt = ARRAY_SIZE(tcase),
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.setup = setup
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};
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#else /* HAVE_SYS_XATTR_H */
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TST_TEST_TCONF("<sys/xattr.h> does not exist.");
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#endif
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