64 lines
1.4 KiB
C
64 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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* 07/2001 Ported by John George
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*/
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/*
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* umask(2) sets the mask from 0000 to 0777 while we create files,
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* the previous value of the mask should be returned correctly,
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* and the file mode should be correct for each creation mask.
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "tst_test.h"
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static void verify_umask(void)
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{
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struct stat statbuf;
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int mskval;
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int fd;
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int failflag = 0;
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unsigned low9mode;
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for (mskval = 0000; mskval < 01000; mskval++) {
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TEST(umask(mskval));
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if (TST_RET < 0 || TST_RET > 0777) {
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tst_brk(TFAIL, "umask(%o) result outside range %ld",
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mskval, TST_RET);
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}
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if (mskval > 0000 && TST_RET != mskval - 1) {
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failflag = 1;
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tst_res(TFAIL, "umask(%o) returned %ld, expected %d",
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mskval, TST_RET, mskval - 1);
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}
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fd = SAFE_CREAT("testfile", 0777);
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SAFE_CLOSE(fd);
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SAFE_STAT("testfile", &statbuf);
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low9mode = statbuf.st_mode & 0777;
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if (low9mode != (~mskval & 0777)) {
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failflag = 1;
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tst_res(TFAIL, "File mode got %o, expected %o",
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low9mode, ~mskval & 0777);
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}
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SAFE_UNLINK("testfile");
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}
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if (!failflag)
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tst_res(TPASS, "All files created with correct mode");
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}
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static struct tst_test test = {
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.test_all = verify_umask,
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.needs_tmpdir = 1,
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};
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