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glibc/posix/tst-pathconf.c
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/* Test that values of pathconf and fpathconf are consistent for a file. | |
Copyright (C) 2013-2016 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 | |
<http://www.gnu.org/licenses/>. */ | |
#include <fcntl.h> | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include <string.h> | |
#include <unistd.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 = malloc (dirbuflen); | |
if (dirbuf == NULL) | |
{ | |
puts ("Out of memory"); | |
exit (1); | |
} | |
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 = malloc (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; | |
} | |
if (rmdir (dirbuf) != 0) | |
{ | |
printf ("Could not remove directory (%s)\n", strerror (errno)); | |
ret = 1; | |
} | |
return ret; | |
} |