| /* |
| ** Copyright (C) 2001-2011 Erik de Castro Lopo <erikd@mega-nerd.com> |
| ** |
| ** This program is free software; you can redistribute it and/or modify |
| ** it under the terms of the GNU General Public License as published by |
| ** the Free Software Foundation; either version 2 of the License, or |
| ** (at your option) any later version. |
| ** |
| ** This program 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 General Public License for more details. |
| ** |
| ** You should have received a copy of the GNU General Public License |
| ** along with this program; if not, write to the Free Software |
| ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| */ |
| |
| #include "sfconfig.h" |
| #include "sndfile.h" |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <assert.h> |
| |
| #if HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| |
| #if (HAVE_DECL_S_IRGRP == 0) |
| #include <sf_unistd.h> |
| #endif |
| |
| #include <string.h> |
| #include <fcntl.h> |
| #include <errno.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| |
| #define SIGNED_SIZEOF(x) ((int) sizeof (x)) |
| |
| /* EMX is OS/2. */ |
| #if defined (__CYGWIN__) || defined (__EMX__) |
| |
| #define LSEEK lseek |
| #define FSTAT fstat |
| |
| typedef struct stat STATBUF ; |
| typedef off_t INT64 ; |
| |
| static char dir_cmd [] = "ls -l" ; |
| |
| #elif (defined (WIN32) || defined (_WIN32)) |
| |
| #define LSEEK _lseeki64 |
| #define FSTAT _fstati64 |
| |
| typedef struct _stati64 STATBUF ; |
| typedef __int64 INT64 ; |
| |
| static char dir_cmd [] = "dir" ; |
| |
| #else |
| |
| #define LSEEK lseek |
| #define FSTAT fstat |
| |
| typedef struct stat STATBUF ; |
| typedef sf_count_t INT64 ; |
| |
| #define O_BINARY 0 |
| static char dir_cmd [] = "ls -l" ; |
| |
| #endif |
| |
| static void show_fstat_error (void) ; |
| static void show_lseek_error (void) ; |
| static void show_stat_fstat_error (void) ; |
| static void write_to_closed_file (void) ; |
| |
| int |
| main (void) |
| { |
| puts ("\n\n\n\n" |
| "This program shows up errors in the Win32 implementation of\n" |
| "a couple of POSIX API functions on some versions of windoze.\n" |
| "It can also be compiled on Linux (which works correctly) and\n" |
| "other OSes just to provide a sanity check.\n" |
| ) ; |
| |
| show_fstat_error () ; |
| show_lseek_error () ; |
| show_stat_fstat_error () ; |
| write_to_closed_file () ; |
| |
| puts ("\n\n") ; |
| |
| return 0 ; |
| } /* main */ |
| |
| static void |
| show_fstat_error (void) |
| { static const char *filename = "fstat.dat" ; |
| static char data [256] ; |
| |
| STATBUF statbuf ; |
| int fd, mode, flags ; |
| |
| if (sizeof (statbuf.st_size) != sizeof (INT64)) |
| { printf ("\n\nLine %d: Error, sizeof (statbuf.st_size) != 8.\n\n", __LINE__) ; |
| return ; |
| } ; |
| |
| puts ("\n64 bit fstat() test.\n--------------------") ; |
| |
| printf ("0) Create a file, write %d bytes and close it.\n", SIGNED_SIZEOF (data)) ; |
| mode = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY ; |
| flags = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH ; |
| if ((fd = open (filename, mode, flags)) < 0) |
| { printf ("\n\nLine %d: open() failed : %s\n\n", __LINE__, strerror (errno)) ; |
| return ; |
| } ; |
| assert (write (fd, data, sizeof (data)) > 0) ; |
| close (fd) ; |
| |
| printf ("1) Re-open file in read/write mode and write another %d bytes at the end.\n", SIGNED_SIZEOF (data)) ; |
| mode = O_RDWR | O_BINARY ; |
| flags = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH ; |
| if ((fd = open (filename, mode, flags)) < 0) |
| { printf ("\n\nLine %d: open() failed : %s\n\n", __LINE__, strerror (errno)) ; |
| return ; |
| } ; |
| LSEEK (fd, 0, SEEK_END) ; |
| assert (write (fd, data, sizeof (data)) > 0) ; |
| |
| printf ("2) Now use system (\"%s %s\") to show the file length.\n\n", dir_cmd, filename) ; |
| |
| /* Would use snprintf, but thats not really available on windows. */ |
| memset (data, 0, sizeof (data)) ; |
| strncpy (data, dir_cmd, sizeof (data) - 1) ; |
| strncat (data, " ", sizeof (data) - 1 - strlen (data)) ; |
| strncat (data, filename, sizeof (data) - 1 - strlen (data)) ; |
| |
| assert (system (data) >= 0) ; |
| puts ("") ; |
| |
| printf ("3) Now use fstat() to get the file length.\n") ; |
| if (FSTAT (fd, &statbuf) != 0) |
| { printf ("\n\nLine %d: fstat() returned error : %s\n", __LINE__, strerror (errno)) ; |
| return ; |
| } ; |
| |
| printf ("4) According to fstat(), the file length is %ld, ", (long) statbuf.st_size) ; |
| |
| close (fd) ; |
| |
| if (statbuf.st_size != 2 * sizeof (data)) |
| printf ("but thats just plain ***WRONG***.\n\n") ; |
| else |
| { printf ("which is correct.\n\n") ; |
| unlink (filename) ; |
| } ; |
| |
| } /* show_fstat_error */ |
| |
| static void |
| show_lseek_error (void) |
| { static const char *filename = "fstat.dat" ; |
| static char data [256] ; |
| |
| INT64 retval ; |
| int fd, mode, flags ; |
| |
| puts ("\n64 bit lseek() test.\n--------------------") ; |
| |
| printf ("0) Create a file, write %d bytes and close it.\n", SIGNED_SIZEOF (data)) ; |
| mode = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY ; |
| flags = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH ; |
| if ((fd = open (filename, mode, flags)) < 0) |
| { printf ("\n\nLine %d: open() failed : %s\n\n", __LINE__, strerror (errno)) ; |
| return ; |
| } ; |
| assert (write (fd, data, sizeof (data)) > 0) ; |
| close (fd) ; |
| |
| printf ("1) Re-open file in read/write mode and write another %d bytes at the end.\n", SIGNED_SIZEOF (data)) ; |
| mode = O_RDWR | O_BINARY ; |
| flags = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH ; |
| if ((fd = open (filename, mode, flags)) < 0) |
| { printf ("\n\nLine %d: open() failed : %s\n\n", __LINE__, strerror (errno)) ; |
| return ; |
| } ; |
| |
| LSEEK (fd, 0, SEEK_END) ; |
| assert (write (fd, data, sizeof (data)) > 0) ; |
| |
| printf ("2) Now use system (\"%s %s\") to show the file length.\n\n", dir_cmd, filename) ; |
| |
| /* Would use snprintf, but thats not really available on windows. */ |
| memset (data, 0, sizeof (data)) ; |
| strncpy (data, dir_cmd, sizeof (data) - 1) ; |
| strncat (data, " ", sizeof (data) - 1 - strlen (data)) ; |
| strncat (data, filename, sizeof (data) - 1 - strlen (data)) ; |
| |
| assert (system (data) >= 0) ; |
| puts ("") ; |
| |
| printf ("3) Now use lseek() to go to the end of the file.\n") ; |
| retval = LSEEK (fd, 0, SEEK_END) ; |
| |
| printf ("4) We are now at position %ld, ", (long) retval) ; |
| |
| close (fd) ; |
| |
| if (retval != 2 * sizeof (data)) |
| printf ("but thats just plain ***WRONG***.\n\n") ; |
| else |
| { printf ("which is correct.\n\n") ; |
| unlink (filename) ; |
| } ; |
| |
| } /* show_lseek_error */ |
| |
| static void |
| show_stat_fstat_error (void) |
| { static const char *filename = "stat_fstat.dat" ; |
| static char data [256] ; |
| |
| int fd, mode, flags ; |
| int stat_size, fstat_size ; |
| struct stat buf ; |
| |
| /* Known to fail on WinXP. */ |
| puts ("\nstat/fstat test.\n----------------") ; |
| |
| printf ("0) Create a file and write %d bytes.\n", SIGNED_SIZEOF (data)) ; |
| |
| mode = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY ; |
| flags = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH ; |
| if ((fd = open (filename, mode, flags)) < 0) |
| { printf ("\n\nLine %d: open() failed : %s\n\n", __LINE__, strerror (errno)) ; |
| return ; |
| } ; |
| |
| assert (write (fd, data, sizeof (data)) > 0) ; |
| |
| printf ("1) Now call stat and fstat on the file and retreive the file lengths.\n") ; |
| |
| if (stat (filename, &buf) != 0) |
| { printf ("\n\nLine %d: stat() failed : %s\n\n", __LINE__, strerror (errno)) ; |
| goto error_exit ; |
| } ; |
| stat_size = buf.st_size ; |
| |
| if (fstat (fd, &buf) != 0) |
| { printf ("\n\nLine %d: fstat() failed : %s\n\n", __LINE__, strerror (errno)) ; |
| goto error_exit ; |
| } ; |
| fstat_size = buf.st_size ; |
| |
| printf ("2) Size returned by stat and fstat is %d and %d, ", stat_size, fstat_size) ; |
| |
| |
| if (stat_size == 0 || stat_size != fstat_size) |
| printf ("but thats just plain ***WRONG***.\n\n") ; |
| else |
| printf ("which is correct.\n\n") ; |
| |
| error_exit : |
| |
| close (fd) ; |
| unlink (filename) ; |
| |
| return ; |
| } /* show_stat_fstat_error */ |
| |
| |
| static void |
| write_to_closed_file (void) |
| { const char * filename = "closed_write_test.txt" ; |
| struct stat buf ; |
| FILE * file ; |
| int fd ; |
| |
| puts ("\nWrite to closed file test.\n--------------------------") ; |
| |
| printf ("0) First we open file for write using fopen().\n") ; |
| if ((file = fopen (filename, "w")) == NULL) |
| { printf ("\n\nLine %d: fopen() failed : %s\n\n", __LINE__, strerror (errno)) ; |
| return ; |
| } ; |
| |
| printf ("1) Now we grab the file descriptor fileno().\n") ; |
| fd = fileno (file) ; |
| |
| printf ("2) Write some text via the file descriptor.\n") ; |
| assert (write (fd, "a\n", 2) > 0) ; |
| |
| printf ("3) Now we close the file using fclose().\n") ; |
| fclose (file) ; |
| |
| stat (filename, &buf) ; |
| printf (" File size is %d bytes.\n", (int) buf.st_size) ; |
| |
| printf ("4) Now write more data to the file descriptor which should fail.\n") ; |
| if (write (fd, "b\n", 2) < 0) |
| printf ("5) Good, write returned an error code as it should have.\n") ; |
| else |
| { printf ("5) Attempting to write to a closed file should have failed but didn't! *** WRONG ***\n") ; |
| |
| stat (filename, &buf) ; |
| printf (" File size is %d bytes.\n", (int) buf.st_size) ; |
| } ; |
| |
| unlink (filename) ; |
| |
| return ; |
| } /* write_to_closed_file */ |