mirror of
https://gitee.com/openharmony/third_party_libsnd
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319 lines
8.6 KiB
C
319 lines
8.6 KiB
C
/*
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** Copyright (C) 2001-2011 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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#include <assert.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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/* EMX is OS/2. */
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#if defined (__CYGWIN__) || defined (__EMX__)
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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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#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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#else
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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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#endif
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static void show_fstat_error (void) ;
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static void show_lseek_error (void) ;
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static void show_stat_fstat_error (void) ;
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static void write_to_closed_file (void) ;
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int
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main (void)
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{
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puts ("\n\n\n\n"
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"This program shows up errors in the Win32 implementation of\n"
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"a couple of POSIX API functions on some versions of windoze.\n"
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"It can also be compiled on Linux (which works correctly) and\n"
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"other OSes 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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show_stat_fstat_error () ;
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write_to_closed_file () ;
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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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assert (write (fd, data, sizeof (data)) > 0) ;
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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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assert (write (fd, data, sizeof (data)) > 0) ;
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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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/* Would use snprintf, but thats not really available on windows. */
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memset (data, 0, sizeof (data)) ;
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strncpy (data, dir_cmd, sizeof (data) - 1) ;
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strncat (data, " ", sizeof (data) - 1 - strlen (data)) ;
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strncat (data, filename, sizeof (data) - 1 - strlen (data)) ;
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assert (system (data) >= 0) ;
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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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assert (write (fd, data, sizeof (data)) > 0) ;
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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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assert (write (fd, data, sizeof (data)) > 0) ;
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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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/* Would use snprintf, but thats not really available on windows. */
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memset (data, 0, sizeof (data)) ;
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strncpy (data, dir_cmd, sizeof (data) - 1) ;
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strncat (data, " ", sizeof (data) - 1 - strlen (data)) ;
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strncat (data, filename, sizeof (data) - 1 - strlen (data)) ;
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assert (system (data) >= 0) ;
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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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static void
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show_stat_fstat_error (void)
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{ static const char *filename = "stat_fstat.dat" ;
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static char data [256] ;
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int fd, mode, flags ;
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int stat_size, fstat_size ;
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struct stat buf ;
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/* Known to fail on WinXP. */
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puts ("\nstat/fstat test.\n----------------") ;
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printf ("0) Create a file and write %d bytes.\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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assert (write (fd, data, sizeof (data)) > 0) ;
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printf ("1) Now call stat and fstat on the file and retreive the file lengths.\n") ;
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if (stat (filename, &buf) != 0)
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{ printf ("\n\nLine %d: stat() failed : %s\n\n", __LINE__, strerror (errno)) ;
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goto error_exit ;
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} ;
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stat_size = buf.st_size ;
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if (fstat (fd, &buf) != 0)
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{ printf ("\n\nLine %d: fstat() failed : %s\n\n", __LINE__, strerror (errno)) ;
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goto error_exit ;
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} ;
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fstat_size = buf.st_size ;
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printf ("2) Size returned by stat and fstat is %d and %d, ", stat_size, fstat_size) ;
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if (stat_size == 0 || stat_size != fstat_size)
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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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error_exit :
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close (fd) ;
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unlink (filename) ;
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return ;
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} /* show_stat_fstat_error */
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static void
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write_to_closed_file (void)
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{ const char * filename = "closed_write_test.txt" ;
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struct stat buf ;
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FILE * file ;
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int fd ;
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puts ("\nWrite to closed file test.\n--------------------------") ;
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printf ("0) First we open file for write using fopen().\n") ;
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if ((file = fopen (filename, "w")) == NULL)
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{ printf ("\n\nLine %d: fopen() failed : %s\n\n", __LINE__, strerror (errno)) ;
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return ;
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} ;
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printf ("1) Now we grab the file descriptor fileno().\n") ;
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fd = fileno (file) ;
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printf ("2) Write some text via the file descriptor.\n") ;
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assert (write (fd, "a\n", 2) > 0) ;
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printf ("3) Now we close the file using fclose().\n") ;
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fclose (file) ;
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stat (filename, &buf) ;
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printf (" File size is %d bytes.\n", (int) buf.st_size) ;
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printf ("4) Now write more data to the file descriptor which should fail.\n") ;
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if (write (fd, "b\n", 2) < 0)
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printf ("5) Good, write returned an error code as it should have.\n") ;
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else
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{ printf ("5) Attempting to write to a closed file should have failed but didn't! *** WRONG ***\n") ;
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stat (filename, &buf) ;
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printf (" File size is %d bytes.\n", (int) buf.st_size) ;
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} ;
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unlink (filename) ;
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return ;
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} /* write_to_closed_file */
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