diff options
Diffstat (limited to 'deps/flac-1.3.2/src/share/grabbag/file.c')
| -rw-r--r-- | deps/flac-1.3.2/src/share/grabbag/file.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/deps/flac-1.3.2/src/share/grabbag/file.c b/deps/flac-1.3.2/src/share/grabbag/file.c new file mode 100644 index 0000000..4cbef9d --- /dev/null +++ b/deps/flac-1.3.2/src/share/grabbag/file.c @@ -0,0 +1,193 @@ +/* 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; +} |