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glibc/io/test-lfs.c
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/* Some basic tests for LFS. | |
Copyright (C) 2000 Free Software Foundation, Inc. | |
Contributed by Andreas Jaeger <aj@suse.de>, 2000. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Library General Public License as | |
published by the Free Software Foundation; either version 2 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 | |
Library General Public License for more details. | |
You should have received a copy of the GNU Library General Public | |
License along with the GNU C Library; see the file COPYING.LIB. If not, | |
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
Boston, MA 02111-1307, USA. */ | |
#include <unistd.h> | |
#include <stdlib.h> | |
#include <sys/types.h> | |
#include <sys/stat.h> | |
#include <fcntl.h> | |
#include <error.h> | |
#include <errno.h> | |
#include <sys/resource.h> | |
/* Prototype for our test function. */ | |
extern void do_prepare (int argc, char *argv[]); | |
extern int do_test (int argc, char *argv[]); | |
/* We have a preparation function. */ | |
#define PREPARE do_prepare | |
/* We might need a bit longer timeout. */ | |
#define TIMEOUT 20 /* sec */ | |
/* This defines the `main' function and some more. */ | |
#include <test-skeleton.c> | |
/* These are for the temporary file we generate. */ | |
char *name; | |
int fd; | |
/* 2^31 = 2GB. */ | |
#define TWO_GB 2147483648LL | |
void | |
do_prepare (int argc, char *argv[]) | |
{ | |
char name_len; | |
struct rlimit64 rlim; | |
name_len = strlen (test_dir); | |
name = malloc (name_len + sizeof ("/lfsXXXXXX")); | |
mempcpy (mempcpy (name, test_dir, name_len), | |
"/lfsXXXXXX", sizeof ("/lfsXXXXXX")); | |
add_temp_file (name); | |
/* Open our test file. */ | |
fd = mkstemp64 (name); | |
if (fd == -1) | |
{ | |
if (errno == ENOSYS) | |
{ | |
/* Fail silently. */ | |
error (0, errno, "open64 is not supported"); | |
exit (EXIT_SUCCESS); | |
} | |
else | |
error (EXIT_FAILURE, errno, "cannot create temporary file"); | |
} | |
if (getrlimit64 (RLIMIT_FSIZE, &rlim) != 0) | |
{ | |
error (0, errno, "cannot get resource limit"); | |
exit (0); | |
} | |
if (rlim.rlim_cur < TWO_GB + 200) | |
{ | |
rlim.rlim_cur = TWO_GB + 200; | |
if (setrlimit64 (RLIMIT_FSIZE, &rlim) != 0) | |
{ | |
error (0, errno, "cannot reset file size limits"); | |
exit (0); | |
} | |
} | |
} | |
int | |
do_test (int argc, char *argv[]) | |
{ | |
int ret; | |
struct stat64 statbuf; | |
ret = lseek64 (fd, TWO_GB+100, SEEK_SET); | |
if (ret == -1 && errno == ENOSYS) | |
{ | |
error (0, errno, "lseek64 is not supported"); | |
exit (EXIT_SUCCESS); | |
} | |
ret = write (fd, "Hello", 5); | |
if (ret == -1 && errno == EINVAL) | |
{ | |
error (0, errno, "LFS seems not to be supported."); | |
exit (EXIT_SUCCESS); | |
} | |
if (ret != 5) | |
error (EXIT_FAILURE, errno, "cannot write test string to large file"); | |
ret = close (fd); | |
if (ret == -1) | |
error (EXIT_FAILURE, errno, "error closing file"); | |
ret = stat64 (name, &statbuf); | |
if (ret == -1 && (errno == ENOSYS || errno == EOVERFLOW)) | |
error (0, errno, "stat64 is not supported"); | |
else if (ret == -1) | |
error (EXIT_FAILURE, errno, "cannot stat file `%s'", name); | |
else if (statbuf.st_size != (TWO_GB + 100 + 5)) | |
error (EXIT_FAILURE, 0, "stat reported size %lld instead of %lld.", | |
(long long int) statbuf.st_size, (TWO_GB + 100 + 5)); | |
return 0; | |
} |