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/* |
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* extfs_unix.cpp - MacOS file system for access native file system access, Unix specific stuff |
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* |
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* Basilisk II (C) 1997-2008 Christian Bauer |
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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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|
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#include <sys/types.h> |
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#include <sys/stat.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <unistd.h> |
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#include <dirent.h> |
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#include <errno.h> |
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|
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#include "sysdeps.h" |
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#include "extfs.h" |
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#include "extfs_defs.h" |
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|
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#define DEBUG 0 |
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#include "debug.h" |
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|
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|
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// Default Finder flags |
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const uint16 DEFAULT_FINDER_FLAGS = kHasBeenInited; |
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|
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|
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/* |
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* Initialization |
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*/ |
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|
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void extfs_init(void) |
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{ |
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} |
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|
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|
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/* |
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* Deinitialization |
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*/ |
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|
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void extfs_exit(void) |
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{ |
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} |
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|
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|
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/* |
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* Add component to path name |
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*/ |
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|
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void add_path_component(char *path, const char *component) |
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{ |
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int l = strlen(path); |
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if (l < MAX_PATH_LENGTH-1 && path[l-1] != '/') { |
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path[l] = '/'; |
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path[l+1] = 0; |
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} |
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strncat(path, component, MAX_PATH_LENGTH-1); |
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} |
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|
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|
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/* |
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* Finder info and resource forks are kept in helper files |
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* |
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* Finder info: |
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* /path/.finf/file |
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* Resource fork: |
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* /path/.rsrc/file |
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* |
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* The .finf files store a FInfo/DInfo, followed by a FXInfo/DXInfo |
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* (16+16 bytes) |
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*/ |
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|
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static void make_helper_path(const char *src, char *dest, const char *add, bool only_dir = false) |
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{ |
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dest[0] = 0; |
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|
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// Get pointer to last component of path |
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const char *last_part = strrchr(src, '/'); |
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if (last_part) |
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last_part++; |
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else |
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last_part = src; |
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|
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// Copy everything before |
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strncpy(dest, src, last_part-src); |
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dest[last_part-src] = 0; |
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|
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// Add additional component |
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strncat(dest, add, MAX_PATH_LENGTH-1); |
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|
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// Add last component |
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if (!only_dir) |
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strncat(dest, last_part, MAX_PATH_LENGTH-1); |
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} |
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|
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static int create_helper_dir(const char *path, const char *add) |
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{ |
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char helper_dir[MAX_PATH_LENGTH]; |
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make_helper_path(path, helper_dir, add, true); |
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if (helper_dir[strlen(helper_dir) - 1] == '/') // Remove trailing "/" |
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helper_dir[strlen(helper_dir) - 1] = 0; |
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return mkdir(helper_dir, 0777); |
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} |
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|
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static int open_helper(const char *path, const char *add, int flag) |
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{ |
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char helper_path[MAX_PATH_LENGTH]; |
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make_helper_path(path, helper_path, add); |
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|
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if ((flag & O_ACCMODE) == O_RDWR || (flag & O_ACCMODE) == O_WRONLY) |
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flag |= O_CREAT; |
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int fd = open(helper_path, flag, 0666); |
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if (fd < 0) { |
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if (errno == ENOENT && (flag & O_CREAT)) { |
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// One path component was missing, probably the helper |
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// directory. Try to create it and re-open the file. |
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int ret = create_helper_dir(path, add); |
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if (ret < 0) |
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return ret; |
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fd = open(helper_path, flag, 0666); |
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} |
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} |
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return fd; |
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} |
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|
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static int open_finf(const char *path, int flag) |
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{ |
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return open_helper(path, ".finf/", flag); |
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} |
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|
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static int open_rsrc(const char *path, int flag) |
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{ |
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return open_helper(path, ".rsrc/", flag); |
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} |
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|
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|
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/* |
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* Get/set finder info for file/directory specified by full path |
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*/ |
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|
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struct ext2type { |
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const char *ext; |
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uint32 type; |
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uint32 creator; |
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}; |
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|
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static const ext2type e2t_translation[] = { |
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{".Z", FOURCC('Z','I','V','M'), FOURCC('L','Z','I','V')}, |
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{".gz", FOURCC('G','z','i','p'), FOURCC('G','z','i','p')}, |
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{".hqx", FOURCC('T','E','X','T'), FOURCC('S','I','T','x')}, |
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{".bin", FOURCC('T','E','X','T'), FOURCC('S','I','T','x')}, |
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{".pdf", FOURCC('P','D','F',' '), FOURCC('C','A','R','O')}, |
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{".ps", FOURCC('T','E','X','T'), FOURCC('t','t','x','t')}, |
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{".sit", FOURCC('S','I','T','!'), FOURCC('S','I','T','x')}, |
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{".tar", FOURCC('T','A','R','F'), FOURCC('T','A','R',' ')}, |
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{".uu", FOURCC('T','E','X','T'), FOURCC('S','I','T','x')}, |
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{".uue", FOURCC('T','E','X','T'), FOURCC('S','I','T','x')}, |
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{".zip", FOURCC('Z','I','P',' '), FOURCC('Z','I','P',' ')}, |
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{".8svx", FOURCC('8','S','V','X'), FOURCC('S','N','D','M')}, |
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{".aifc", FOURCC('A','I','F','C'), FOURCC('T','V','O','D')}, |
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{".aiff", FOURCC('A','I','F','F'), FOURCC('T','V','O','D')}, |
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{".au", FOURCC('U','L','A','W'), FOURCC('T','V','O','D')}, |
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{".mid", FOURCC('M','I','D','I'), FOURCC('T','V','O','D')}, |
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{".midi", FOURCC('M','I','D','I'), FOURCC('T','V','O','D')}, |
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{".mp2", FOURCC('M','P','G',' '), FOURCC('T','V','O','D')}, |
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{".mp3", FOURCC('M','P','G',' '), FOURCC('T','V','O','D')}, |
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{".wav", FOURCC('W','A','V','E'), FOURCC('T','V','O','D')}, |
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{".bmp", FOURCC('B','M','P','f'), FOURCC('o','g','l','e')}, |
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{".gif", FOURCC('G','I','F','f'), FOURCC('o','g','l','e')}, |
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{".lbm", FOURCC('I','L','B','M'), FOURCC('G','K','O','N')}, |
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{".ilbm", FOURCC('I','L','B','M'), FOURCC('G','K','O','N')}, |
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{".jpg", FOURCC('J','P','E','G'), FOURCC('o','g','l','e')}, |
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{".jpeg", FOURCC('J','P','E','G'), FOURCC('o','g','l','e')}, |
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{".pict", FOURCC('P','I','C','T'), FOURCC('o','g','l','e')}, |
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{".png", FOURCC('P','N','G','f'), FOURCC('o','g','l','e')}, |
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{".sgi", FOURCC('.','S','G','I'), FOURCC('o','g','l','e')}, |
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{".tga", FOURCC('T','P','I','C'), FOURCC('o','g','l','e')}, |
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{".tif", FOURCC('T','I','F','F'), FOURCC('o','g','l','e')}, |
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{".tiff", FOURCC('T','I','F','F'), FOURCC('o','g','l','e')}, |
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{".htm", FOURCC('T','E','X','T'), FOURCC('M','O','S','S')}, |
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{".html", FOURCC('T','E','X','T'), FOURCC('M','O','S','S')}, |
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{".txt", FOURCC('T','E','X','T'), FOURCC('t','t','x','t')}, |
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{".rtf", FOURCC('T','E','X','T'), FOURCC('M','S','W','D')}, |
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{".c", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
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{".C", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
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{".cc", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
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{".cpp", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
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{".cxx", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
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{".h", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
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{".hh", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
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{".hpp", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
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{".hxx", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
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{".s", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
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{".S", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
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{".i", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
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{".mpg", FOURCC('M','P','E','G'), FOURCC('T','V','O','D')}, |
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{".mpeg", FOURCC('M','P','E','G'), FOURCC('T','V','O','D')}, |
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{".mov", FOURCC('M','o','o','V'), FOURCC('T','V','O','D')}, |
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{".fli", FOURCC('F','L','I',' '), FOURCC('T','V','O','D')}, |
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{".avi", FOURCC('V','f','W',' '), FOURCC('T','V','O','D')}, |
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{".qxd", FOURCC('X','D','O','C'), FOURCC('X','P','R','3')}, |
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{".hfv", FOURCC('D','D','i','m'), FOURCC('d','d','s','k')}, |
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{".dsk", FOURCC('D','D','i','m'), FOURCC('d','d','s','k')}, |
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{".img", FOURCC('r','o','h','d'), FOURCC('d','d','s','k')}, |
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{NULL, 0, 0} // End marker |
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}; |
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|
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void get_finfo(const char *path, uint32 finfo, uint32 fxinfo, bool is_dir) |
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{ |
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// Set default finder info |
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Mac_memset(finfo, 0, SIZEOF_FInfo); |
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if (fxinfo) |
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Mac_memset(fxinfo, 0, SIZEOF_FXInfo); |
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WriteMacInt16(finfo + fdFlags, DEFAULT_FINDER_FLAGS); |
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WriteMacInt32(finfo + fdLocation, (uint32)-1); |
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|
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// Read Finder info file |
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int fd = open_finf(path, O_RDONLY); |
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if (fd >= 0) { |
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ssize_t actual = read(fd, Mac2HostAddr(finfo), SIZEOF_FInfo); |
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if (fxinfo) |
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actual += read(fd, Mac2HostAddr(fxinfo), SIZEOF_FXInfo); |
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close(fd); |
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if (actual >= SIZEOF_FInfo) |
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return; |
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} |
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|
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// No Finder info file, translate file name extension to MacOS type/creator |
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if (!is_dir) { |
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int path_len = strlen(path); |
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for (int i=0; e2t_translation[i].ext; i++) { |
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int ext_len = strlen(e2t_translation[i].ext); |
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if (path_len < ext_len) |
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continue; |
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if (!strcmp(path + path_len - ext_len, e2t_translation[i].ext)) { |
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WriteMacInt32(finfo + fdType, e2t_translation[i].type); |
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WriteMacInt32(finfo + fdCreator, e2t_translation[i].creator); |
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break; |
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} |
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} |
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} |
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} |
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|
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void set_finfo(const char *path, uint32 finfo, uint32 fxinfo, bool is_dir) |
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{ |
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// Open Finder info file |
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int fd = open_finf(path, O_RDWR); |
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if (fd < 0) |
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return; |
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|
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// Write file |
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write(fd, Mac2HostAddr(finfo), SIZEOF_FInfo); |
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if (fxinfo) |
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write(fd, Mac2HostAddr(fxinfo), SIZEOF_FXInfo); |
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close(fd); |
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} |
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|
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|
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/* |
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* Resource fork emulation functions |
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*/ |
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|
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uint32 get_rfork_size(const char *path) |
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{ |
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// Open resource file |
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int fd = open_rsrc(path, O_RDONLY); |
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if (fd < 0) |
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return 0; |
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|
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// Get size |
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off_t size = lseek(fd, 0, SEEK_END); |
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|
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// Close file and return size |
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close(fd); |
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return size < 0 ? 0 : size; |
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} |
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|
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int open_rfork(const char *path, int flag) |
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{ |
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return open_rsrc(path, flag); |
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} |
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|
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void close_rfork(const char *path, int fd) |
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{ |
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close(fd); |
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} |
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|
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|
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/* |
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* Read "length" bytes from file to "buffer", |
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* returns number of bytes read (or -1 on error) |
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*/ |
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|
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ssize_t extfs_read(int fd, void *buffer, size_t length) |
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{ |
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return read(fd, buffer, length); |
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} |
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|
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|
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/* |
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* Write "length" bytes from "buffer" to file, |
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* returns number of bytes written (or -1 on error) |
| 316 |
*/ |
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|
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ssize_t extfs_write(int fd, void *buffer, size_t length) |
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{ |
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return write(fd, buffer, length); |
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} |
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|
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|
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/* |
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* Remove file/directory (and associated helper files), |
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* returns false on error (and sets errno) |
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*/ |
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|
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bool extfs_remove(const char *path) |
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{ |
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// Remove helpers first, don't complain if this fails |
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char helper_path[MAX_PATH_LENGTH]; |
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make_helper_path(path, helper_path, ".finf/", false); |
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remove(helper_path); |
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make_helper_path(path, helper_path, ".rsrc/", false); |
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remove(helper_path); |
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|
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// Now remove file or directory (and helper directories in the directory) |
| 339 |
if (remove(path) < 0) { |
| 340 |
if (errno == EISDIR || errno == ENOTEMPTY) { |
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helper_path[0] = 0; |
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strncpy(helper_path, path, MAX_PATH_LENGTH-1); |
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add_path_component(helper_path, ".finf"); |
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rmdir(helper_path); |
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helper_path[0] = 0; |
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strncpy(helper_path, path, MAX_PATH_LENGTH-1); |
| 347 |
add_path_component(helper_path, ".rsrc"); |
| 348 |
rmdir(helper_path); |
| 349 |
return rmdir(path) == 0; |
| 350 |
} else |
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return false; |
| 352 |
} |
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return true; |
| 354 |
} |
| 355 |
|
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|
| 357 |
/* |
| 358 |
* Rename/move file/directory (and associated helper files), |
| 359 |
* returns false on error (and sets errno) |
| 360 |
*/ |
| 361 |
|
| 362 |
bool extfs_rename(const char *old_path, const char *new_path) |
| 363 |
{ |
| 364 |
// Rename helpers first, don't complain if this fails |
| 365 |
char old_helper_path[MAX_PATH_LENGTH], new_helper_path[MAX_PATH_LENGTH]; |
| 366 |
make_helper_path(old_path, old_helper_path, ".finf/", false); |
| 367 |
make_helper_path(new_path, new_helper_path, ".finf/", false); |
| 368 |
create_helper_dir(new_path, ".finf/"); |
| 369 |
rename(old_helper_path, new_helper_path); |
| 370 |
make_helper_path(old_path, old_helper_path, ".rsrc/", false); |
| 371 |
make_helper_path(new_path, new_helper_path, ".rsrc/", false); |
| 372 |
create_helper_dir(new_path, ".rsrc/"); |
| 373 |
rename(old_helper_path, new_helper_path); |
| 374 |
|
| 375 |
// Now rename file |
| 376 |
return rename(old_path, new_path) == 0; |
| 377 |
} |
| 378 |
|
| 379 |
|
| 380 |
// Convert from the host OS filename encoding to MacRoman |
| 381 |
const char *host_encoding_to_macroman(const char *filename) |
| 382 |
{ |
| 383 |
return filename; |
| 384 |
} |
| 385 |
|
| 386 |
// Convert from MacRoman to host OS filename encoding |
| 387 |
const char *macroman_to_host_encoding(const char *filename) |
| 388 |
{ |
| 389 |
return filename; |
| 390 |
} |
| 391 |
|
| 392 |
|
