103 lines
2.4 KiB
C
103 lines
2.4 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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* 07/2001 ported by John George
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* Copyright (C) 2021 SUSE LLC <mdoucha@suse.cz>
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*/
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/*\
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* [Description]
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*
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* Verify that the system call utime() successfully sets the modification
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* and access times of a file to the current time, under the following
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* constraints:
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*
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* - The times argument is NULL.
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* - The user ID of the process is not "root".
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* - The file is not owned by the user ID of the process.
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* - The user ID of the process has write access to the file.
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*/
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#include <pwd.h>
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#include <utime.h>
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#include <time.h>
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#include "tst_test.h"
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#include "tst_uid.h"
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#include "tst_clocks.h"
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#define MNTPOINT "mntpoint"
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#define TEMP_FILE MNTPOINT"/tmp_file"
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#define FILE_MODE 0766
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static uid_t root_uid, user_uid;
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static void setup(void)
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{
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struct passwd *pw;
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uid_t test_users[2];
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int fd;
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root_uid = getuid();
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pw = SAFE_GETPWNAM("nobody");
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test_users[0] = pw->pw_uid;
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tst_get_uids(test_users, 1, 2);
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user_uid = test_users[1];
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fd = SAFE_CREAT(TEMP_FILE, FILE_MODE);
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SAFE_CLOSE(fd);
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/* Override umask */
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SAFE_CHMOD(TEMP_FILE, FILE_MODE);
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SAFE_CHOWN(TEMP_FILE, pw->pw_uid, pw->pw_gid);
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}
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static void run(void)
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{
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struct utimbuf utbuf;
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struct stat statbuf;
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time_t mintime, maxtime;
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utbuf.modtime = time(0) - 5;
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utbuf.actime = utbuf.modtime + 1;
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TST_EXP_PASS_SILENT(utime(TEMP_FILE, &utbuf));
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SAFE_STAT(TEMP_FILE, &statbuf);
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if (statbuf.st_atime != utbuf.actime ||
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statbuf.st_mtime != utbuf.modtime) {
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tst_res(TFAIL, "Could not set initial file times");
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return;
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}
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SAFE_SETEUID(user_uid);
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mintime = tst_get_fs_timestamp();
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TST_EXP_PASS(utime(TEMP_FILE, NULL));
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maxtime = tst_get_fs_timestamp();
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SAFE_SETEUID(root_uid);
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SAFE_STAT(TEMP_FILE, &statbuf);
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if (statbuf.st_atime < mintime || statbuf.st_atime > maxtime)
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tst_res(TFAIL, "utime() did not set expected atime, "
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"mintime: %ld, maxtime: %ld, st_atime: %ld",
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mintime, maxtime, statbuf.st_atime);
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if (statbuf.st_mtime < mintime || statbuf.st_mtime > maxtime)
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tst_res(TFAIL, "utime() did not set expected mtime, "
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"mintime: %ld, maxtime: %ld, st_mtime: %ld",
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mintime, maxtime, statbuf.st_mtime);
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}
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static struct tst_test test = {
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.test_all = run,
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.setup = setup,
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.needs_root = 1,
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.mount_device = 1,
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.mntpoint = MNTPOINT,
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.all_filesystems = 1,
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.skip_filesystems = (const char *const[]) {
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"vfat",
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"exfat",
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NULL
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}
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};
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