| 1 | /* grabbag - Convenience lib for various routines common to several tools |
| 2 | * Copyright (C) 2002-2009 Josh Coalson |
| 3 | * Copyright (C) 2011-2016 Xiph.Org Foundation |
| 4 | * |
| 5 | * This library is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU Lesser General Public |
| 7 | * License as published by the Free Software Foundation; either |
| 8 | * version 2.1 of the License, or (at your option) any later version. |
| 9 | * |
| 10 | * This library is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * Lesser General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU Lesser General Public |
| 16 | * License along with this library; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | */ |
| 19 | |
| 20 | #ifdef HAVE_CONFIG_H |
| 21 | # include <config.h> |
| 22 | #endif |
| 23 | |
| 24 | #if defined _MSC_VER || defined __MINGW32__ |
| 25 | #include <sys/utime.h> /* for utime() */ |
| 26 | #include <io.h> /* for chmod(), _setmode(), unlink() */ |
| 27 | #include <fcntl.h> /* for _O_BINARY */ |
| 28 | #else |
| 29 | #include <sys/types.h> /* some flavors of BSD (like OS X) require this to get time_t */ |
| 30 | #include <utime.h> /* for utime() */ |
| 31 | #endif |
| 32 | #if defined __CYGWIN__ || defined __EMX__ |
| 33 | #include <io.h> /* for setmode(), O_BINARY */ |
| 34 | #include <fcntl.h> /* for _O_BINARY */ |
| 35 | #endif |
| 36 | #include <sys/stat.h> /* for stat(), maybe chmod() */ |
| 37 | #if defined _WIN32 && !defined __CYGWIN__ |
| 38 | #else |
| 39 | #include <unistd.h> /* for unlink() */ |
| 40 | #endif |
| 41 | #include <stdio.h> |
| 42 | #include <stdlib.h> |
| 43 | #include <string.h> /* for strrchr() */ |
| 44 | #if defined _WIN32 && !defined __CYGWIN__ |
| 45 | // for GetFileInformationByHandle() etc |
| 46 | #include <windows.h> |
| 47 | #include <winbase.h> |
| 48 | #endif |
| 49 | #include "share/grabbag.h" |
| 50 | |
| 51 | |
| 52 | void grabbag__file_copy_metadata(const char *srcpath, const char *destpath) |
| 53 | { |
| 54 | struct flac_stat_s srcstat; |
| 55 | struct utimbuf srctime; |
| 56 | |
| 57 | if(0 == flac_stat(srcpath, &srcstat)) { |
| 58 | srctime.actime = srcstat.st_atime; |
| 59 | srctime.modtime = srcstat.st_mtime; |
| 60 | (void)flac_chmod(destpath, srcstat.st_mode); |
| 61 | #if !defined _3DS |
| 62 | (void)flac_utime(destpath, &srctime); |
| 63 | #endif |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | FLAC__off_t grabbag__file_get_filesize(const char *srcpath) |
| 68 | { |
| 69 | struct flac_stat_s srcstat; |
| 70 | |
| 71 | if(0 == flac_stat(srcpath, &srcstat)) |
| 72 | return srcstat.st_size; |
| 73 | else |
| 74 | return -1; |
| 75 | } |
| 76 | |
| 77 | const char *grabbag__file_get_basename(const char *srcpath) |
| 78 | { |
| 79 | const char *p; |
| 80 | |
| 81 | p = strrchr(srcpath, '/'); |
| 82 | if(0 == p) { |
| 83 | p = strrchr(srcpath, '\\'); |
| 84 | if(0 == p) |
| 85 | return srcpath; |
| 86 | } |
| 87 | return ++p; |
| 88 | } |
| 89 | |
| 90 | FLAC__bool grabbag__file_change_stats(const char *filename, FLAC__bool read_only) |
| 91 | { |
| 92 | struct flac_stat_s stats; |
| 93 | |
| 94 | if(0 == flac_stat(filename, &stats)) { |
| 95 | #if !defined _MSC_VER && !defined __MINGW32__ |
| 96 | if(read_only) { |
| 97 | stats.st_mode &= ~S_IWUSR; |
| 98 | stats.st_mode &= ~S_IWGRP; |
| 99 | stats.st_mode &= ~S_IWOTH; |
| 100 | } |
| 101 | else { |
| 102 | stats.st_mode |= S_IWUSR; |
| 103 | } |
| 104 | #else |
| 105 | if(read_only) |
| 106 | stats.st_mode &= ~S_IWRITE; |
| 107 | else |
| 108 | stats.st_mode |= S_IWRITE; |
| 109 | #endif |
| 110 | if(0 != flac_chmod(filename, stats.st_mode)) |
| 111 | return false; |
| 112 | } |
| 113 | else |
| 114 | return false; |
| 115 | |
| 116 | return true; |
| 117 | } |
| 118 | |
| 119 | FLAC__bool grabbag__file_are_same(const char *f1, const char *f2) |
| 120 | { |
| 121 | #if defined _MSC_VER || defined __MINGW32__ |
| 122 | /* see |
| 123 | * http://www.hydrogenaudio.org/forums/index.php?showtopic=49439&pid=444300&st=0 |
| 124 | * http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/fs/getfileinformationbyhandle.asp |
| 125 | * http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/fs/by_handle_file_information_str.asp |
| 126 | * http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/fs/createfile.asp |
| 127 | * apparently both the files have to be open at the same time for the comparison to work |
| 128 | */ |
| 129 | FLAC__bool same = false; |
| 130 | BY_HANDLE_FILE_INFORMATION info1, info2; |
| 131 | HANDLE h1, h2; |
| 132 | BOOL ok = 1; |
| 133 | h1 = CreateFile_utf8(f1, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); |
| 134 | h2 = CreateFile_utf8(f2, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); |
| 135 | if(h1 == INVALID_HANDLE_VALUE || h2 == INVALID_HANDLE_VALUE) |
| 136 | ok = 0; |
| 137 | ok &= GetFileInformationByHandle(h1, &info1); |
| 138 | ok &= GetFileInformationByHandle(h2, &info2); |
| 139 | if(ok) |
| 140 | same = |
| 141 | info1.dwVolumeSerialNumber == info2.dwVolumeSerialNumber && |
| 142 | info1.nFileIndexHigh == info2.nFileIndexHigh && |
| 143 | info1.nFileIndexLow == info2.nFileIndexLow |
| 144 | ; |
| 145 | if(h1 != INVALID_HANDLE_VALUE) |
| 146 | CloseHandle(h1); |
| 147 | if(h2 != INVALID_HANDLE_VALUE) |
| 148 | CloseHandle(h2); |
| 149 | return same; |
| 150 | #else |
| 151 | struct flac_stat_s s1, s2; |
| 152 | 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; |
| 153 | #endif |
| 154 | } |
| 155 | |
| 156 | FLAC__bool grabbag__file_remove_file(const char *filename) |
| 157 | { |
| 158 | return grabbag__file_change_stats(filename, /*read_only=*/false) && 0 == flac_unlink(filename); |
| 159 | } |
| 160 | |
| 161 | FILE *grabbag__file_get_binary_stdin(void) |
| 162 | { |
| 163 | /* if something breaks here it is probably due to the presence or |
| 164 | * absence of an underscore before the identifiers 'setmode', |
| 165 | * 'fileno', and/or 'O_BINARY'; check your system header files. |
| 166 | */ |
| 167 | #if defined _MSC_VER || defined __MINGW32__ |
| 168 | _setmode(_fileno(stdin), _O_BINARY); |
| 169 | #elif defined __CYGWIN__ |
| 170 | /* almost certainly not needed for any modern Cygwin, but let's be safe... */ |
| 171 | setmode(_fileno(stdin), _O_BINARY); |
| 172 | #elif defined __EMX__ |
| 173 | setmode(fileno(stdin), O_BINARY); |
| 174 | #endif |
| 175 | |
| 176 | return stdin; |
| 177 | } |
| 178 | |
| 179 | FILE *grabbag__file_get_binary_stdout(void) |
| 180 | { |
| 181 | /* if something breaks here it is probably due to the presence or |
| 182 | * absence of an underscore before the identifiers 'setmode', |
| 183 | * 'fileno', and/or 'O_BINARY'; check your system header files. |
| 184 | */ |
| 185 | #if defined _MSC_VER || defined __MINGW32__ |
| 186 | _setmode(_fileno(stdout), _O_BINARY); |
| 187 | #elif defined __CYGWIN__ |
| 188 | /* almost certainly not needed for any modern Cygwin, but let's be safe... */ |
| 189 | setmode(_fileno(stdout), _O_BINARY); |
| 190 | #elif defined __EMX__ |
| 191 | setmode(fileno(stdout), O_BINARY); |
| 192 | #endif |
| 193 | |
| 194 | return stdout; |
| 195 | } |