69 lines
1.3 KiB
C
69 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/* Copyright (c) International Business Machines Corp., 2001
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*/
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/*
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* Verify that user cannot create a directory inside directory owned by another
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* user with restrictive permissions and that the errno is set to EACCESS.
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*/
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#include <errno.h>
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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 <sys/wait.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include "tst_test.h"
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#define TESTDIR "testdir"
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#define TESTSUBDIR "testdir/testdir"
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static uid_t nobody_uid, bin_uid;
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static void verify_mkdir(void)
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{
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if (mkdir(TESTSUBDIR, 0777) != -1) {
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tst_res(TFAIL, "mkdir(%s, %#o) succeeded unexpectedly",
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TESTSUBDIR, 0777);
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return;
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}
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if (errno != EACCES) {
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tst_res(TFAIL | TERRNO, "Expected EACCES got");
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return;
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}
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tst_res(TPASS | TERRNO, "mkdir() failed expectedly");
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}
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static void setup(void)
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{
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struct passwd *pw;
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pid_t pid;
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pw = SAFE_GETPWNAM("nobody");
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nobody_uid = pw->pw_uid;
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pw = SAFE_GETPWNAM("bin");
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bin_uid = pw->pw_uid;
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pid = SAFE_FORK();
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if (pid == 0) {
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SAFE_SETREUID(nobody_uid, nobody_uid);
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SAFE_MKDIR(TESTDIR, 0700);
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exit(0);
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}
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tst_reap_children();
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SAFE_SETREUID(bin_uid, bin_uid);
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}
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static struct tst_test test = {
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.test_all = verify_mkdir,
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.needs_tmpdir = 1,
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.needs_root = 1,
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.setup = setup,
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.forks_child = 1,
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};
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