87 lines
1.8 KiB
C
87 lines
1.8 KiB
C
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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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* 07/2001 Ported by Wayne Boyer
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* Copyright (c) 2021 Xie Ziyao <xieziyao@huawei.com>
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*/
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/*\
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* [Description]
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*
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* Verify that:
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*
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* 1. fchown() returns -1 and sets errno to EPERM if the effective user id
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* of process does not match the owner of the file and the process is
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* not super user.
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* 2. fchown() returns -1 and sets errno to EBADF if the file descriptor
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* of the specified file is not valid.
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* 3. fchown() returns -1 and sets errno to EROFS if the named file resides
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* on a read-only file system.
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*/
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#include <pwd.h>
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#include "tst_test.h"
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#include "compat_tst_16.h"
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#include "tst_safe_macros.h"
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#define MNT_POINT "mntpoint"
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#define TEST_FILE "tfile_1"
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#define MODE 0666
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#define DIR_MODE (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH)
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static int fd1;
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static int fd2 = -1;
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static int fd3;
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static struct test_case_t {
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int *fd;
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int exp_errno;
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} tc[] = {
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{&fd1, EPERM},
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{&fd2, EBADF},
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{&fd3, EROFS},
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};
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static void setup(void)
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{
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struct passwd *ltpuser;
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fd1 = SAFE_OPEN(TEST_FILE, O_RDWR | O_CREAT, MODE);
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fd3 = SAFE_OPEN(MNT_POINT, O_RDONLY);
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ltpuser = SAFE_GETPWNAM("nobody");
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SAFE_SETEUID(ltpuser->pw_uid);
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}
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static void run(unsigned int i)
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{
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uid_t uid;
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gid_t gid;
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UID16_CHECK((uid = geteuid()), "fchown");
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GID16_CHECK((gid = getegid()), "fchown");
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TST_EXP_FAIL(FCHOWN(*tc[i].fd, uid, gid), tc[i].exp_errno,
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"fchown(%i, %i, %i)", *tc[i].fd, uid, gid);
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}
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static void cleanup(void)
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{
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if (fd1 > 0)
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SAFE_CLOSE(fd1);
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if (fd3 > 0)
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SAFE_CLOSE(fd3);
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}
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static struct tst_test test = {
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.needs_root = 1,
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.needs_rofs = 1,
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.mntpoint = MNT_POINT,
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.tcnt = ARRAY_SIZE(tc),
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.test = run,
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.setup = setup,
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.cleanup = cleanup,
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};
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