136 lines
2.7 KiB
C
136 lines
2.7 KiB
C
|
/* Copyright (C) 2003-2022 Free Software Foundation, Inc.
|
||
|
|
This file is part of the GNU C Library.
|
||
|
|
|
||
|
|
The GNU C Library is free software; you can redistribute it and/or
|
||
|
|
modify it under the terms of the GNU Lesser General Public
|
||
|
|
License as published by the Free Software Foundation; either
|
||
|
|
version 2.1 of the License, or (at your option) any later version.
|
||
|
|
|
||
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
||
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
Lesser General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU Lesser General Public
|
||
|
|
License along with the GNU C Library; if not, see
|
||
|
|
<https://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <pthread.h>
|
||
|
|
#include <stdbool.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <sys/stat.h>
|
||
|
|
|
||
|
|
|
||
|
|
static struct
|
||
|
|
{
|
||
|
|
int (*fp) (const char *, mode_t);
|
||
|
|
const char *name;
|
||
|
|
bool is_fd;
|
||
|
|
} fcts[] =
|
||
|
|
{
|
||
|
|
{ creat, "creat", true },
|
||
|
|
{ mkdir, "mkdir", false },
|
||
|
|
{ mkfifo, "mkfifo", false },
|
||
|
|
};
|
||
|
|
#define nfcts (sizeof (fcts) / sizeof (fcts[0]))
|
||
|
|
|
||
|
|
|
||
|
|
static int
|
||
|
|
work (const char *fname, int mask)
|
||
|
|
{
|
||
|
|
int result = 0;
|
||
|
|
size_t i;
|
||
|
|
for (i = 0; i < nfcts; ++i)
|
||
|
|
{
|
||
|
|
remove (fname);
|
||
|
|
int fd = fcts[i].fp (fname, 0777);
|
||
|
|
if (fd == -1)
|
||
|
|
{
|
||
|
|
printf ("cannot %s %s: %m\n", fcts[i].name, fname);
|
||
|
|
exit (1);
|
||
|
|
}
|
||
|
|
if (fcts[i].is_fd)
|
||
|
|
close (fd);
|
||
|
|
struct stat64 st;
|
||
|
|
if (stat64 (fname, &st) == -1)
|
||
|
|
{
|
||
|
|
printf ("cannot stat %s after %s: %m\n", fname, fcts[i].name);
|
||
|
|
exit (1);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((st.st_mode & mask) != 0)
|
||
|
|
{
|
||
|
|
printf ("mask not successful after %s: %x still set\n",
|
||
|
|
fcts[i].name, (unsigned int) (st.st_mode & mask));
|
||
|
|
result = 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
static pthread_barrier_t bar;
|
||
|
|
|
||
|
|
|
||
|
|
static void *
|
||
|
|
tf (void *arg)
|
||
|
|
{
|
||
|
|
pthread_barrier_wait (&bar);
|
||
|
|
|
||
|
|
int result = work (arg, 022);
|
||
|
|
|
||
|
|
pthread_barrier_wait (&bar);
|
||
|
|
|
||
|
|
pthread_barrier_wait (&bar);
|
||
|
|
|
||
|
|
return (work (arg, 0) | result) ? (void *) -1l : NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
static int
|
||
|
|
do_test (const char *fname)
|
||
|
|
{
|
||
|
|
int result = 0;
|
||
|
|
|
||
|
|
umask (0);
|
||
|
|
result |= work (fname, 0);
|
||
|
|
|
||
|
|
pthread_barrier_init (&bar, NULL, 2);
|
||
|
|
|
||
|
|
pthread_t th;
|
||
|
|
if (pthread_create (&th, NULL, tf, (void *) fname) != 0)
|
||
|
|
{
|
||
|
|
puts ("cannot create thread");
|
||
|
|
exit (1);
|
||
|
|
}
|
||
|
|
|
||
|
|
umask (022);
|
||
|
|
result |= work (fname, 022);
|
||
|
|
|
||
|
|
pthread_barrier_wait (&bar);
|
||
|
|
|
||
|
|
pthread_barrier_wait (&bar);
|
||
|
|
|
||
|
|
umask (0);
|
||
|
|
|
||
|
|
pthread_barrier_wait (&bar);
|
||
|
|
|
||
|
|
void *res;
|
||
|
|
if (pthread_join (th, &res) != 0)
|
||
|
|
{
|
||
|
|
puts ("join failed");
|
||
|
|
exit (1);
|
||
|
|
}
|
||
|
|
|
||
|
|
remove (fname);
|
||
|
|
|
||
|
|
return result || res != NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
#define TEST_FUNCTION do_test (argc < 2 ? "/tmp/tst-umask.tmp" : argv[1])
|
||
|
|
#include "../test-skeleton.c"
|