74 lines
1.7 KiB
C
74 lines
1.7 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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* Test Description:
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* Verify that, fchmod() will succeed to change the mode of a file/directory
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* set the sticky bit on it if invoked by root (uid = 0) process with
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* the following constraints,
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* - the process is not the owner of the file/directory.
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* - the effective group ID or one of the supplementary group ID's of the
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* process is equal to the group ID of the file/directory.
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*
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* Expected Result:
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* fchmod() should return value 0 on success and succeeds to set sticky bit
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* on the specified file.
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*/
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#include <pwd.h>
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#include <grp.h>
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#include <errno.h>
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#include "tst_test.h"
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#include "fchmod.h"
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static int fd;
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static void verify_fchmod(void)
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{
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struct stat stat_buf;
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mode_t file_mode;
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TEST(fchmod(fd, PERMS));
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if (TST_RET == -1)
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tst_res(TFAIL | TTERRNO, "fchmod() failed unexpectly");
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SAFE_FSTAT(fd, &stat_buf);
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file_mode = stat_buf.st_mode;
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if ((file_mode & ~S_IFREG) != PERMS) {
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tst_res(TFAIL, "%s: Incorrect modes 0%03o, Expected 0%03o",
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TESTFILE, file_mode, PERMS);
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} else {
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tst_res(TPASS, "Functionality of fchmod(%d, %#o) Successful",
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fd, PERMS);
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}
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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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struct group *ltpgroup;
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ltpuser = SAFE_GETPWNAM("nobody");
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ltpgroup = SAFE_GETGRNAM_FALLBACK("users", "daemon");
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fd = SAFE_OPEN(TESTFILE, O_RDWR | O_CREAT, FILE_MODE);
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SAFE_CHOWN(TESTFILE, ltpuser->pw_uid, ltpgroup->gr_gid);
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SAFE_SETGID(ltpgroup->gr_gid);
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}
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static void cleanup(void)
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{
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if (fd > 0)
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SAFE_CLOSE(fd);
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}
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static struct tst_test test = {
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.test_all = verify_fchmod,
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.needs_root = 1,
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.setup = setup,
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.cleanup = cleanup,
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.needs_tmpdir = 1,
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};
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