236 lines
6.0 KiB
C
236 lines
6.0 KiB
C
/*
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** Copyright (C) 2001-2004 Erik de Castro Lopo <erikd@mega-nerd.com>
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "sfconfig.h"
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#include "sndfile.h"
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#include <stdio.h>
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#include <stdlib.h>
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#if (HAVE_DECL_S_IRGRP == 0)
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#include <sf_unistd.h>
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#endif
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#include <string.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#define SIGNED_SIZEOF(x) ((int) sizeof (x))
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#if defined (__CYGWIN__)
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#define LSEEK lseek
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#define FSTAT fstat
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typedef struct stat STATBUF ;
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typedef off_t INT64 ;
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static char dir_cmd [] = "ls -l" ;
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#define COMPILE_FULL_TEST 1
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#elif (defined (WIN32) || defined (_WIN32))
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#define LSEEK _lseeki64
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#define FSTAT _fstati64
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typedef struct _stati64 STATBUF ;
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typedef __int64 INT64 ;
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static char dir_cmd [] = "dir" ;
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#define COMPILE_FULL_TEST 1
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#elif defined (linux)
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#define LSEEK lseek
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#define FSTAT fstat
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typedef struct stat STATBUF ;
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typedef sf_count_t INT64 ;
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#define O_BINARY 0
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static char dir_cmd [] = "ls -l" ;
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#define COMPILE_FULL_TEST 1
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#else
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#define COMPILE_FULL_TEST 0
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#endif
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#if COMPILE_FULL_TEST
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static void show_fstat_error (void) ;
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static void show_lseek_error (void) ;
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int
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main (void)
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{ puts ("\n\n\n\n"
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"This program shows up some errors in the Win32 implementation of\n"
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"a couple of POSIX API functions. It can also be compiled on Linux\n"
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"(which works correctly) just to provide a sanity check.\n"
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) ;
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show_fstat_error () ;
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show_lseek_error () ;
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puts ("\n\n") ;
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return 0 ;
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} /* main */
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static void
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show_fstat_error (void)
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{ static const char *filename = "fstat.dat" ;
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static char data [256] ;
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STATBUF statbuf ;
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int fd, mode, flags ;
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if (sizeof (statbuf.st_size) != sizeof (INT64))
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{ printf ("\n\nLine %d: Error, sizeof (statbuf.st_size) != 8.\n\n", __LINE__) ;
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return ;
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} ;
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puts ("\n64 bit fstat() test.\n--------------------") ;
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printf ("0) Create a file, write %d bytes and close it.\n", SIGNED_SIZEOF (data)) ;
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mode = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY ;
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flags = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH ;
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if ((fd = open (filename, mode, flags)) < 0)
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{ printf ("\n\nLine %d: open() failed : %s\n\n", __LINE__, strerror (errno)) ;
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return ;
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} ;
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write (fd, data, sizeof (data)) ;
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close (fd) ;
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printf ("1) Re-open file in read/write mode and write another %d bytes at the end.\n", SIGNED_SIZEOF (data)) ;
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mode = O_RDWR | O_BINARY ;
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flags = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH ;
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if ((fd = open (filename, mode, flags)) < 0)
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{ printf ("\n\nLine %d: open() failed : %s\n\n", __LINE__, strerror (errno)) ;
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return ;
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} ;
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LSEEK (fd, 0, SEEK_END) ;
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write (fd, data, sizeof (data)) ;
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printf ("2) Now use system (\"%s %s\") to show the file length.\n\n", dir_cmd, filename) ;
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sprintf (data, "%s %s", dir_cmd, filename) ;
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system (data) ;
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puts ("") ;
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printf ("3) Now use fstat() to get the file length.\n") ;
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if (FSTAT (fd, &statbuf) != 0)
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{ printf ("\n\nLine %d: fstat() returned error : %s\n", __LINE__, strerror (errno)) ;
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return ;
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} ;
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printf ("4) According to fstat(), the file length is %ld, ", (long) statbuf.st_size) ;
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close (fd) ;
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if (statbuf.st_size != 2 * sizeof (data))
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printf ("but thats just plain ***WRONG***.\n\n") ;
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else
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{ printf ("which is correct.\n\n") ;
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unlink (filename) ;
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} ;
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} /* show_fstat_error */
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static void
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show_lseek_error (void)
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{ static const char *filename = "fstat.dat" ;
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static char data [256] ;
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INT64 retval ;
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int fd, mode, flags ;
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puts ("\n64 bit lseek() test.\n--------------------") ;
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printf ("0) Create a file, write %d bytes and close it.\n", SIGNED_SIZEOF (data)) ;
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mode = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY ;
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flags = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH ;
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if ((fd = open (filename, mode, flags)) < 0)
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{ printf ("\n\nLine %d: open() failed : %s\n\n", __LINE__, strerror (errno)) ;
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return ;
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} ;
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write (fd, data, sizeof (data)) ;
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close (fd) ;
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printf ("1) Re-open file in read/write mode and write another %d bytes at the end.\n", SIGNED_SIZEOF (data)) ;
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mode = O_RDWR | O_BINARY ;
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flags = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH ;
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if ((fd = open (filename, mode, flags)) < 0)
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{ printf ("\n\nLine %d: open() failed : %s\n\n", __LINE__, strerror (errno)) ;
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return ;
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} ;
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LSEEK (fd, 0, SEEK_END) ;
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write (fd, data, sizeof (data)) ;
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printf ("2) Now use system (\"%s %s\") to show the file length.\n\n", dir_cmd, filename) ;
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sprintf (data, "%s %s", dir_cmd, filename) ;
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system (data) ;
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puts ("") ;
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printf ("3) Now use lseek() to go to the end of the file.\n") ;
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retval = LSEEK (fd, 0, SEEK_END) ;
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printf ("4) We are now at position %ld, ", (long) retval) ;
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close (fd) ;
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if (retval != 2 * sizeof (data))
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printf ("but thats just plain ***WRONG***.\n\n") ;
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else
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{ printf ("which is correct.\n\n") ;
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unlink (filename) ;
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} ;
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} /* show_lseek_error */
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#else
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int
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main (void)
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{ puts ("\n"
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"This program shows up some errors in the Win32 implementation of\n"
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"a couple of POSIX API functions. It can also be compiled on Linux\n"
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"and under Cygwin32 (which both work correctly) just to provide a \n"
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"sanity check.\n"
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"Unfortunately, it does not compile on this platform."
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) ;
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return 0 ;
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} /* main */
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#endif
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/*
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** Do not edit or modify anything in this comment block.
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** The arch-tag line is a file identity tag for the GNU Arch
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** revision control system.
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**
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** arch-tag: 228b9a18-0555-46d9-b9e6-2b37ce048702
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*/
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