87 lines
1.6 KiB
C
87 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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* Author: Wayne Boyer
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* Copyright (c) 2018 Cyril Hrubis <chrubis@suse.cz>
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*/
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/*
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* Test that fchmod() fails and sets the proper errno values.
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*/
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#ifndef _GNU_SOURCE
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# define _GNU_SOURCE
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#endif
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#include <errno.h>
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#include <sys/types.h>
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#include <pwd.h>
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#include "tst_test.h"
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#define MNT_POINT "mntpoint"
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static int fd1;
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static int fd2;
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static int fd3;
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static struct tcase {
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int *fd;
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int mode;
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int exp_errno;
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} tcases[] = {
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{&fd1, 0644, EPERM},
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{&fd2, 0644, EBADF},
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{&fd3, 0644, EROFS},
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};
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static void verify_fchmod(unsigned int i)
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{
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struct tcase *tc = &tcases[i];
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TEST(fchmod(*tc->fd, tc->mode));
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if (TST_RET != -1) {
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tst_res(TFAIL, "fchmod() passed unexpectedly (%li)",
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TST_RET);
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return;
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}
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if (TST_ERR == tcases[i].exp_errno) {
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tst_res(TPASS | TTERRNO, "fchmod() failed expectedly");
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return;
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}
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tst_res(TFAIL | TTERRNO,
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"fchmod() failed unexpectedly, expected %i - %s",
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TST_ERR, tst_strerrno(TST_ERR));
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}
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static void setup(void)
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{
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struct passwd *ltpuser = SAFE_GETPWNAM("nobody");
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fd3 = SAFE_OPEN(MNT_POINT"/file", O_RDONLY);
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fd1 = SAFE_OPEN("tfile_1", O_RDWR | O_CREAT, 0666);
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fd2 = SAFE_OPEN("tfile_2", O_RDWR | O_CREAT, 0666);
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SAFE_CLOSE(fd2);
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SAFE_SETEUID(ltpuser->pw_uid);
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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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.setup = setup,
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.cleanup = cleanup,
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.test = verify_fchmod,
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.tcnt = ARRAY_SIZE(tcases),
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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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};
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