73 lines
1.4 KiB
C
73 lines
1.4 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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/*\
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* [Description]
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*
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* Verify that new directory created by mkdir(2) inherites the group ID from
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* the parent directory and S_ISGID bit, if the S_ISGID bit is set in the
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* parent directory.
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*/
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#include <sys/stat.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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#include "tst_uid.h"
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#define TESTDIR1 "testdir1"
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#define TESTDIR2 "testdir1/testdir2"
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static gid_t free_gid;
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static void verify_mkdir(void)
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{
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struct stat statbuf;
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int fail = 0;
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SAFE_MKDIR(TESTDIR2, 0777);
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SAFE_STAT(TESTDIR2, &statbuf);
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if (statbuf.st_gid != free_gid) {
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tst_res(TFAIL,
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"New dir FAILED to inherit GID: has %d, expected %d",
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statbuf.st_gid, free_gid);
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fail = 1;
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}
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if (!(statbuf.st_mode & S_ISGID)) {
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tst_res(TFAIL, "New dir FAILED to inherit S_ISGID");
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fail = 1;
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}
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if (!fail)
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tst_res(TPASS, "New dir inherited GID and S_ISGID");
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SAFE_RMDIR(TESTDIR2);
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}
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static void setup(void)
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{
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struct passwd *pw = SAFE_GETPWNAM("nobody");
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free_gid = tst_get_free_gid(pw->pw_gid);
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umask(0);
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SAFE_MKDIR(TESTDIR1, 0777);
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SAFE_CHMOD(TESTDIR1, 0777 | S_ISGID);
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SAFE_CHOWN(TESTDIR1, getuid(), free_gid);
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SAFE_SETREGID(pw->pw_gid, pw->pw_gid);
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SAFE_SETREUID(pw->pw_uid, pw->pw_uid);
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}
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static struct tst_test test = {
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.setup = setup,
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.needs_tmpdir = 1,
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.needs_root = 1,
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.test_all = verify_mkdir,
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};
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