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/* Test that values of pathconf and fpathconf are consistent for a file.
Copyright (C) 2013-2023 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
static void prepare (void);
#define PREPARE(argc, argv) prepare ()
static int do_test (void);
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
static int dir_fd;
static char *dirbuf;
static void
prepare (void)
{
size_t test_dir_len = strlen (test_dir);
static const char dir_name[] = "/tst-pathconf.XXXXXX";
size_t dirbuflen = test_dir_len + sizeof (dir_name);
dirbuf = xmalloc (dirbuflen);
snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
if (mkdtemp (dirbuf) == NULL)
{
printf ("Cannot create temporary directory: %s\n", strerror (errno));
exit (1);
}
add_temp_file (dirbuf);
dir_fd = open (dirbuf, O_RDONLY);
if (dir_fd == -1)
{
printf ("Cannot open directory: %s\n", strerror (errno));
exit (1);
}
}
static int
do_test (void)
{
int ret = 0;
static const char *fifo_name = "some-fifo";
size_t filenamelen = strlen (dirbuf) + strlen (fifo_name) + 2;
char *filename = xmalloc (filenamelen);
snprintf (filename, filenamelen, "%s/%s", dirbuf, fifo_name);
/* Create a fifo in the directory. */
int e = mkfifo (filename, 0777);
if (e == -1)
{
printf ("fifo creation failed (%s)\n", strerror (errno));
ret = 1;
goto out_nofifo;
}
long dir_pathconf = pathconf (dirbuf, _PC_PIPE_BUF);
if (dir_pathconf < 0)
{
printf ("pathconf on directory failed: %s\n", strerror (errno));
ret = 1;
goto out_nofifo;
}
long fifo_pathconf = pathconf (filename, _PC_PIPE_BUF);
if (fifo_pathconf < 0)
{
printf ("pathconf on file failed: %s\n", strerror (errno));
ret = 1;
goto out_nofifo;
}
int fifo = open (filename, O_RDONLY | O_NONBLOCK);
if (fifo < 0)
{
printf ("fifo open failed (%s)\n", strerror (errno));
ret = 1;
goto out_nofifo;
}
long dir_fpathconf = fpathconf (dir_fd, _PC_PIPE_BUF);
if (dir_fpathconf < 0)
{
printf ("fpathconf on directory failed: %s\n", strerror (errno));
ret = 1;
goto out;
}
long fifo_fpathconf = fpathconf (fifo, _PC_PIPE_BUF);
if (fifo_fpathconf < 0)
{
printf ("fpathconf on file failed: %s\n", strerror (errno));
ret = 1;
goto out;
}
if (fifo_pathconf != fifo_fpathconf)
{
printf ("fifo pathconf (%ld) != fifo fpathconf (%ld)\n", fifo_pathconf,
fifo_fpathconf);
ret = 1;
goto out;
}
if (dir_pathconf != fifo_pathconf)
{
printf ("directory pathconf (%ld) != fifo pathconf (%ld)\n",
dir_pathconf, fifo_pathconf);
ret = 1;
goto out;
}
if (dir_fpathconf != fifo_fpathconf)
{
printf ("directory fpathconf (%ld) != fifo fpathconf (%ld)\n",
dir_fpathconf, fifo_fpathconf);
ret = 1;
goto out;
}
out:
close (fifo);
out_nofifo:
close (dir_fd);
if (unlink (filename) != 0)
{
printf ("Could not remove fifo (%s)\n", strerror (errno));
ret = 1;
}
return ret;
}
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