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- /*
- * extfs_amiga.cpp - MacOS file system for access native file system access, AmigaOS specific stuff
- *
- * Basilisk II (C) 1997-2001 Christian Bauer
- *
- * 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 <exec/types.h>
- #include <proto/dos.h>
-
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <unistd.h>
- #include <fcntl.h>
- #include <dirent.h>
- #include <errno.h>
-
- #include "sysdeps.h"
- #include "extfs.h"
- #include "extfs_defs.h"
-
- #define DEBUG 0
- #include "debug.h"
-
-
- // Default Finder flags
- const uint16 DEFAULT_FINDER_FLAGS = kHasBeenInited;
-
-
- /*
- * Initialization
- */
-
- void extfs_init(void)
- {
- }
-
-
- /*
- * Deinitialization
- */
-
- void extfs_exit(void)
- {
- }
-
-
- /*
- * Add component to path name
- */
-
- void add_path_component(char *path, const char *component)
- {
- AddPart(path, (char *)component, MAX_PATH_LENGTH);
- }
-
-
- /*
- * Finder info and resource forks are kept in helper files
- *
- * Finder info:
- * /path/.finf/file
- * Resource fork:
- * /path/.rsrc/file
- *
- * The .finf files store a FInfo/DInfo, followed by a FXInfo/DXInfo
- * (16+16 bytes)
- */
-
- static void make_helper_path(const char *src, char *dest, const char *add, bool only_dir = false)
- {
- dest[0] = 0;
-
- // Get pointer to last component of path
- const char *last_part = FilePart((char *)src);
-
- // Copy everything before
- strncpy(dest, src, last_part-src);
- dest[last_part-src] = 0;
-
- // Add additional component
- AddPart(dest, (char *)add, MAX_PATH_LENGTH);
-
- // Add last component
- if (!only_dir)
- AddPart(dest, (char *)last_part, MAX_PATH_LENGTH);
- }
-
- static int create_helper_dir(const char *path, const char *add)
- {
- char helper_dir[MAX_PATH_LENGTH];
- make_helper_path(path, helper_dir, add, true);
- if (helper_dir[strlen(helper_dir) - 1] == '/') // Remove trailing "/"
- helper_dir[strlen(helper_dir) - 1] = 0;
- return mkdir(helper_dir, 0777);
- }
-
- static int open_helper(const char *path, const char *add, int flag)
- {
- char helper_path[MAX_PATH_LENGTH];
- make_helper_path(path, helper_path, add);
-
- if ((flag & O_ACCMODE) == O_RDWR || (flag & O_ACCMODE) == O_WRONLY)
- flag |= O_CREAT;
- int fd = open(helper_path, flag, 0666);
- if (fd < 0) {
- if (errno == ENOENT && (flag & O_CREAT)) {
- // One path component was missing, probably the helper
- // directory. Try to create it and re-open the file.
- int ret = create_helper_dir(path, add);
- if (ret < 0)
- return ret;
- fd = open(helper_path, flag, 0666);
- }
- }
- return fd;
- }
-
- static int open_finf(const char *path, int flag)
- {
- return open_helper(path, ".finf/", flag);
- }
-
- static int open_rsrc(const char *path, int flag)
- {
- return open_helper(path, ".rsrc/", flag);
- }
-
-
- /*
- * Get/set finder type/creator for file specified by full path
- */
-
- struct ext2type {
- const char *ext;
- uint32 type;
- uint32 creator;
- };
-
- static const ext2type e2t_translation[] = {
- {".z", FOURCC('Z','I','V','M'), FOURCC('L','Z','I','V')},
- {".gz", FOURCC('G','z','i','p'), FOURCC('G','z','i','p')},
- {".hqx", FOURCC('T','E','X','T'), FOURCC('S','I','T','x')},
- {".bin", FOURCC('T','E','X','T'), FOURCC('S','I','T','x')},
- {".pdf", FOURCC('P','D','F',' '), FOURCC('C','A','R','O')},
- {".ps", FOURCC('T','E','X','T'), FOURCC('t','t','x','t')},
- {".sit", FOURCC('S','I','T','!'), FOURCC('S','I','T','x')},
- {".tar", FOURCC('T','A','R','F'), FOURCC('T','A','R',' ')},
- {".uu", FOURCC('T','E','X','T'), FOURCC('S','I','T','x')},
- {".uue", FOURCC('T','E','X','T'), FOURCC('S','I','T','x')},
- {".zip", FOURCC('Z','I','P',' '), FOURCC('Z','I','P',' ')},
- {".8svx", FOURCC('8','S','V','X'), FOURCC('S','N','D','M')},
- {".aifc", FOURCC('A','I','F','C'), FOURCC('T','V','O','D')},
- {".aiff", FOURCC('A','I','F','F'), FOURCC('T','V','O','D')},
- {".au", FOURCC('U','L','A','W'), FOURCC('T','V','O','D')},
- {".mid", FOURCC('M','I','D','I'), FOURCC('T','V','O','D')},
- {".midi", FOURCC('M','I','D','I'), FOURCC('T','V','O','D')},
- {".mp2", FOURCC('M','P','G',' '), FOURCC('T','V','O','D')},
- {".mp3", FOURCC('M','P','G',' '), FOURCC('T','V','O','D')},
- {".wav", FOURCC('W','A','V','E'), FOURCC('T','V','O','D')},
- {".bmp", FOURCC('B','M','P','f'), FOURCC('o','g','l','e')},
- {".gif", FOURCC('G','I','F','f'), FOURCC('o','g','l','e')},
- {".lbm", FOURCC('I','L','B','M'), FOURCC('G','K','O','N')},
- {".ilbm", FOURCC('I','L','B','M'), FOURCC('G','K','O','N')},
- {".jpg", FOURCC('J','P','E','G'), FOURCC('o','g','l','e')},
- {".jpeg", FOURCC('J','P','E','G'), FOURCC('o','g','l','e')},
- {".pict", FOURCC('P','I','C','T'), FOURCC('o','g','l','e')},
- {".png", FOURCC('P','N','G','f'), FOURCC('o','g','l','e')},
- {".sgi", FOURCC('.','S','G','I'), FOURCC('o','g','l','e')},
- {".tga", FOURCC('T','P','I','C'), FOURCC('o','g','l','e')},
- {".tif", FOURCC('T','I','F','F'), FOURCC('o','g','l','e')},
- {".tiff", FOURCC('T','I','F','F'), FOURCC('o','g','l','e')},
- {".htm", FOURCC('T','E','X','T'), FOURCC('M','O','S','S')},
- {".html", FOURCC('T','E','X','T'), FOURCC('M','O','S','S')},
- {".txt", FOURCC('T','E','X','T'), FOURCC('t','t','x','t')},
- {".rtf", FOURCC('T','E','X','T'), FOURCC('M','S','W','D')},
- {".c", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
- {".cc", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
- {".cpp", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
- {".cxx", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
- {".h", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
- {".hh", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
- {".hpp", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
- {".hxx", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
- {".s", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
- {".i", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
- {".mpg", FOURCC('M','P','E','G'), FOURCC('T','V','O','D')},
- {".mpeg", FOURCC('M','P','E','G'), FOURCC('T','V','O','D')},
- {".mov", FOURCC('M','o','o','V'), FOURCC('T','V','O','D')},
- {".fli", FOURCC('F','L','I',' '), FOURCC('T','V','O','D')},
- {".avi", FOURCC('V','f','W',' '), FOURCC('T','V','O','D')},
- {".qxd", FOURCC('X','D','O','C'), FOURCC('X','P','R','3')},
- {".hfv", FOURCC('D','D','i','m'), FOURCC('d','d','s','k')},
- {".dsk", FOURCC('D','D','i','m'), FOURCC('d','d','s','k')},
- {".img", FOURCC('r','o','h','d'), FOURCC('d','d','s','k')},
- {NULL, 0, 0} // End marker
- };
-
- void get_finfo(const char *path, uint32 finfo, uint32 fxinfo, bool is_dir)
- {
- // Set default finder info
- Mac_memset(finfo, 0, SIZEOF_FInfo);
- if (fxinfo)
- Mac_memset(fxinfo, 0, SIZEOF_FXInfo);
- WriteMacInt16(finfo + fdFlags, DEFAULT_FINDER_FLAGS);
- WriteMacInt32(finfo + fdLocation, (uint32)-1);
-
- // Read Finder info file
- int fd = open_finf(path, O_RDONLY);
- if (fd >= 0) {
- ssize_t actual = read(fd, Mac2HostAddr(finfo), SIZEOF_FInfo);
- if (fxinfo)
- actual += read(fd, Mac2HostAddr(fxinfo), SIZEOF_FXInfo);
- close(fd);
- if (actual >= SIZEOF_FInfo)
- return;
- }
-
- // No Finder info file, translate file name extension to MacOS type/creator
- if (!is_dir) {
- int path_len = strlen(path);
- for (int i=0; e2t_translation[i].ext; i++) {
- int ext_len = strlen(e2t_translation[i].ext);
- if (path_len < ext_len)
- continue;
- if (!strcasecmp(path + path_len - ext_len, e2t_translation[i].ext)) {
- WriteMacInt32(finfo + fdType, e2t_translation[i].type);
- WriteMacInt32(finfo + fdCreator, e2t_translation[i].creator);
- break;
- }
- }
- }
- }
-
- void set_finfo(const char *path, uint32 finfo, uint32 fxinfo, bool is_dir)
- {
- // Open Finder info file
- int fd = open_finf(path, O_RDWR);
- if (fd < 0)
- return;
-
- // Write file
- write(fd, Mac2HostAddr(finfo), SIZEOF_FInfo);
- if (fxinfo)
- write(fd, Mac2HostAddr(fxinfo), SIZEOF_FXInfo);
- close(fd);
- }
-
-
- /*
- * Resource fork emulation functions
- */
-
- uint32 get_rfork_size(const char *path)
- {
- // Open resource file
- int fd = open_rsrc(path, O_RDONLY);
- if (fd < 0)
- return 0;
-
- // Get size
- off_t size = lseek(fd, 0, SEEK_END);
-
- // Close file and return size
- close(fd);
- return size < 0 ? 0 : size;
- }
-
- int open_rfork(const char *path, int flag)
- {
- return open_rsrc(path, flag);
- }
-
- void close_rfork(const char *path, int fd)
- {
- close(fd);
- }
-
-
- /*
- * Read "length" bytes from file to "buffer",
- * returns number of bytes read (or -1 on error)
- */
-
- ssize_t extfs_read(int fd, void *buffer, size_t length)
- {
- return read(fd, buffer, length);
- }
-
-
- /*
- * Write "length" bytes from "buffer" to file,
- * returns number of bytes written (or -1 on error)
- */
-
- ssize_t extfs_write(int fd, void *buffer, size_t length)
- {
- return write(fd, buffer, length);
- }
-
-
- /*
- * Remove file/directory (and associated helper files),
- * returns false on error (and sets errno)
- */
-
- bool extfs_remove(const char *path)
- {
- // Remove helpers first, don't complain if this fails
- char helper_path[MAX_PATH_LENGTH];
- make_helper_path(path, helper_path, ".finf/", false);
- remove(helper_path);
- make_helper_path(path, helper_path, ".rsrc/", false);
- remove(helper_path);
-
- // Now remove file or directory (and helper directories in the directory)
- if (remove(path) < 0) {
- if (errno == EISDIR || errno == ENOTEMPTY) {
- helper_path[0] = 0;
- strncpy(helper_path, path, MAX_PATH_LENGTH-1);
- add_path_component(helper_path, ".finf");
- rmdir(helper_path);
- helper_path[0] = 0;
- strncpy(helper_path, path, MAX_PATH_LENGTH-1);
- add_path_component(helper_path, ".rsrc");
- rmdir(helper_path);
- return rmdir(path) == 0;
- } else
- return false;
- }
- return true;
- }
-
-
- /*
- * Rename/move file/directory (and associated helper files),
- * returns false on error (and sets errno)
- */
-
- bool extfs_rename(const char *old_path, const char *new_path)
- {
- // Rename helpers first, don't complain if this fails
- char old_helper_path[MAX_PATH_LENGTH], new_helper_path[MAX_PATH_LENGTH];
- make_helper_path(old_path, old_helper_path, ".finf/", false);
- make_helper_path(new_path, new_helper_path, ".finf/", false);
- create_helper_dir(new_path, ".finf/");
- rename(old_helper_path, new_helper_path);
- make_helper_path(old_path, old_helper_path, ".rsrc/", false);
- make_helper_path(new_path, new_helper_path, ".rsrc/", false);
- create_helper_dir(new_path, ".rsrc/");
- rename(old_helper_path, new_helper_path);
-
- // Now rename file
- return rename(old_path, new_path) == 0;
- }
-
-
- /*
- * ftruncate() is missing from libnix
- */
-
- extern unsigned long *__stdfiledes;
-
- int ftruncate(int fd, off_t size)
- {
- if (SetFileSize(__stdfiledes[fd], size, OFFSET_BEGINNING) < 0)
- return -1;
- else
- return 0;
- }
-