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/* grabbag - Convenience lib for various routines common to several tools
* Copyright (C) 2002-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* This 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.
*
* This 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#if defined _MSC_VER || defined __MINGW32__
#include <sys/utime.h> /* for utime() */
#include <io.h> /* for chmod(), _setmode(), unlink() */
#include <fcntl.h> /* for _O_BINARY */
#else
#include <sys/types.h> /* some flavors of BSD (like OS X) require this to get time_t */
#include <utime.h> /* for utime() */
#endif
#if defined __CYGWIN__ || defined __EMX__
#include <io.h> /* for setmode(), O_BINARY */
#include <fcntl.h> /* for _O_BINARY */
#endif
#include <sys/stat.h> /* for stat(), maybe chmod() */
#if defined _WIN32 && !defined __CYGWIN__
#else
#include <unistd.h> /* for unlink() */
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h> /* for strrchr() */
#if defined _WIN32 && !defined __CYGWIN__
// for GetFileInformationByHandle() etc
#include <windows.h>
#include <winbase.h>
#endif
#include "share/grabbag.h"
void grabbag__file_copy_metadata(const char *srcpath, const char *destpath)
{
struct flac_stat_s srcstat;
struct utimbuf srctime;
if(0 == flac_stat(srcpath, &srcstat)) {
srctime.actime = srcstat.st_atime;
srctime.modtime = srcstat.st_mtime;
(void)flac_chmod(destpath, srcstat.st_mode);
(void)flac_utime(destpath, &srctime);
}
}
FLAC__off_t grabbag__file_get_filesize(const char *srcpath)
{
struct flac_stat_s srcstat;
if(0 == flac_stat(srcpath, &srcstat))
return srcstat.st_size;
else
return -1;
}
const char *grabbag__file_get_basename(const char *srcpath)
{
const char *p;
p = strrchr(srcpath, '/');
if(0 == p) {
p = strrchr(srcpath, '\\');
if(0 == p)
return srcpath;
}
return ++p;
}
FLAC__bool grabbag__file_change_stats(const char *filename, FLAC__bool read_only)
{
struct flac_stat_s stats;
if(0 == flac_stat(filename, &stats)) {
#if !defined _MSC_VER && !defined __MINGW32__
if(read_only) {
stats.st_mode &= ~S_IWUSR;
stats.st_mode &= ~S_IWGRP;
stats.st_mode &= ~S_IWOTH;
}
else {
stats.st_mode |= S_IWUSR;
}
#else
if(read_only)
stats.st_mode &= ~S_IWRITE;
else
stats.st_mode |= S_IWRITE;
#endif
if(0 != flac_chmod(filename, stats.st_mode))
return false;
}
else
return false;
return true;
}
FLAC__bool grabbag__file_are_same(const char *f1, const char *f2)
{
#if defined _MSC_VER || defined __MINGW32__
/* see
* http://www.hydrogenaudio.org/forums/index.php?showtopic=49439&pid=444300&st=0
* http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/fs/getfileinformationbyhandle.asp
* http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/fs/by_handle_file_information_str.asp
* http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/fs/createfile.asp
* apparently both the files have to be open at the same time for the comparison to work
*/
FLAC__bool same = false;
BY_HANDLE_FILE_INFORMATION info1, info2;
HANDLE h1, h2;
BOOL ok = 1;
h1 = CreateFile_utf8(f1, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
h2 = CreateFile_utf8(f2, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if(h1 == INVALID_HANDLE_VALUE || h2 == INVALID_HANDLE_VALUE)
ok = 0;
ok &= GetFileInformationByHandle(h1, &info1);
ok &= GetFileInformationByHandle(h2, &info2);
if(ok)
same =
info1.dwVolumeSerialNumber == info2.dwVolumeSerialNumber &&
info1.nFileIndexHigh == info2.nFileIndexHigh &&
info1.nFileIndexLow == info2.nFileIndexLow
;
if(h1 != INVALID_HANDLE_VALUE)
CloseHandle(h1);
if(h2 != INVALID_HANDLE_VALUE)
CloseHandle(h2);
return same;
#else
struct flac_stat_s s1, s2;
return f1 && f2 && flac_stat(f1, &s1) == 0 && flac_stat(f2, &s2) == 0 && s1.st_ino == s2.st_ino && s1.st_dev == s2.st_dev;
#endif
}
FLAC__bool grabbag__file_remove_file(const char *filename)
{
return grabbag__file_change_stats(filename, /*read_only=*/false) && 0 == flac_unlink(filename);
}
FILE *grabbag__file_get_binary_stdin(void)
{
/* if something breaks here it is probably due to the presence or
* absence of an underscore before the identifiers 'setmode',
* 'fileno', and/or 'O_BINARY'; check your system header files.
*/
#if defined _MSC_VER || defined __MINGW32__
_setmode(_fileno(stdin), _O_BINARY);
#elif defined __CYGWIN__
/* almost certainly not needed for any modern Cygwin, but let's be safe... */
setmode(_fileno(stdin), _O_BINARY);
#elif defined __EMX__
setmode(fileno(stdin), O_BINARY);
#endif
return stdin;
}
FILE *grabbag__file_get_binary_stdout(void)
{
/* if something breaks here it is probably due to the presence or
* absence of an underscore before the identifiers 'setmode',
* 'fileno', and/or 'O_BINARY'; check your system header files.
*/
#if defined _MSC_VER || defined __MINGW32__
_setmode(_fileno(stdout), _O_BINARY);
#elif defined __CYGWIN__
/* almost certainly not needed for any modern Cygwin, but let's be safe... */
setmode(_fileno(stdout), _O_BINARY);
#elif defined __EMX__
setmode(fileno(stdout), O_BINARY);
#endif
return stdout;
}
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