home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
AmigActive 6
/
AACD06.ISO
/
AACD
/
Emulation
/
BasiliskII
/
src
/
BeOS
/
extfs_beos.cpp
< prev
next >
Wrap
C/C++ Source or Header
|
1999-12-22
|
11KB
|
476 lines
/*
* extfs_beos.cpp - MacOS file system for access native file system access, BeOS specific stuff
*
* Basilisk II (C) 1997-1999 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 "sysdeps.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <dirent.h>
#include <errno.h>
#include <fs_attr.h>
#include <support/TypeConstants.h>
#include <storage/Mime.h>
#include "extfs.h"
#include "extfs_defs.h"
#define DEBUG 0
#include "debug.h"
// Default Finder flags
const uint16 DEFAULT_FINDER_FLAGS = kHasBeenInited;
// Temporary buffer for transfers from/to kernel space
const int TMP_BUF_SIZE = 0x10000;
static uint8 *tmp_buf = NULL;
/*
* Initialization
*/
void extfs_init(void)
{
// Allocate temporary buffer
tmp_buf = new uint8[TMP_BUF_SIZE];
}
/*
* Deinitialization
*/
void extfs_exit(void)
{
// Delete temporary buffer
delete[] tmp_buf;
}
/*
* Add component to path name
*/
void add_path_component(char *path, const char *component)
{
int l = strlen(path);
if (l < MAX_PATH_LENGTH-1 && path[l-1] != '/') {
path[l] = '/';
path[l+1] = 0;
}
strncat(path, component, MAX_PATH_LENGTH-1);
}
/*
* Get/set finder type/creator for file specified by full path
*/
struct mime2type {
const char *mime;
uint32 type;
uint32 creator;
bool reversible; // type -> mime translation possible
};
static const mime2type m2t_translation[] = {
{"application/x-compress", 'ZIVM', 'LZIV', true},
{"application/x-gzip", 'Gzip', 'Gzip', true},
{"application/x-macbinary", 'BINA', '????', false},
{"application/mac-binhex40", 'TEXT', 'SITx', false},
{"application/pdf", 'PDF ', 'CARO', true},
{"application/postscript", 'TEXT', 'ttxt', false},
{"application/x-stuffit", 'SIT!', 'SITx', true},
{"application/x-tar", 'TARF', 'TAR ', true},
{"application/x-uuencode", 'TEXT', 'SITx', false},
{"application/zip", 'ZIP ', 'ZIP ', true},
{"audio/x-8svx", '8SVX', 'SNDM', true},
{"audio/x-aifc", 'AIFC', 'TVOD', true},
{"audio/x-aiff", 'AIFF', 'TVOD', true},
{"audio/basic", 'ULAW', 'TVOD', true},
{"audio/x-midi", 'MIDI', 'TVOD', true},
{"audio/x-mpeg", 'MPG ', 'TVOD', true},
{"audio/x-wav", 'WAVE', 'TVOD', true},
{"image/x-bmp", 'BMPf', 'ogle', true},
{"image/gif", 'GIFf', 'ogle', true},
{"image/x-ilbm", 'ILBM', 'GKON', true},
{"image/jpeg", 'JPEG', 'ogle', true},
{"image/jpeg", 'JFIF', 'ogle', true},
{"image/x-photoshop", '8BPS', '8BIM', true},
{"image/pict", 'PICT', 'ogle', true},
{"image/png", 'PNGf', 'ogle', true},
{"image/x-sgi", '.SGI', 'ogle', true},
{"image/x-targa", 'TPIC', 'ogle', true},
{"image/tiff", 'TIFF', 'ogle', true},
{"text/html", 'TEXT', 'MOSS', false},
{"text/plain", 'TEXT', 'ttxt', true},
{"text/rtf", 'TEXT', 'MSWD', false},
{"text/x-source-code", 'TEXT', 'R*ch', false},
{"video/mpeg", 'MPEG', 'TVOD', true},
{"video/quicktime", 'MooV', 'TVOD', true},
{"video/x-flc", 'FLI ', 'TVOD', true},
{"video/x-msvideo", 'VfW ', 'TVOD', true},
{NULL, 0, 0, false} // End marker
};
void get_finder_type(const char *path, uint32 &type, uint32 &creator)
{
type = 0;
creator = 0;
// Open file
int fd = open(path, O_RDONLY);
if (fd < 0)
return;
// Read BeOS MIME type and close file
char mime[256];
ssize_t actual = fs_read_attr(fd, "BEOS:TYPE", B_MIME_STRING_TYPE, 0, mime, 256);
mime[255] = 0;
if (actual > 0) {
// Translate MIME type to MacOS type/creator
char mactype[4];
if (sscanf(mime, "application/x-MacOS-%c%c%c%c", mactype, mactype+1, mactype+2, mactype+3) == 4) {
// MacOS style type
memcpy(&type, mactype, 4);
} else {
// MIME string, look in table
for (int i=0; m2t_translation[i].mime; i++) {
if (!strcmp(mime, m2t_translation[i].mime)) {
type = m2t_translation[i].type;
creator = m2t_translation[i].creator;
break;
}
}
}
}
// Override file type with MACOS:CREATOR attribute
fs_read_attr(fd, "MACOS:CREATOR", B_UINT32_TYPE, 0, &creator, 4);
// Close file
close(fd);
}
void set_finder_type(const char *path, uint32 type, uint32 creator)
{
// Open file
int fd = open(path, O_WRONLY);
if (fd < 0)
return;
// Set BEOS:TYPE attribute
if (type) {
bool written = false;
for (int i=0; m2t_translation[i].mime; i++) {
if (m2t_translation[i].type == type && m2t_translation[i].reversible) {
fs_write_attr(fd, "BEOS:TYPE", B_MIME_STRING_TYPE, 0, m2t_translation[i].mime, strlen(m2t_translation[i].mime) + 1);
written = true;
break;
}
}
if (!written) {
char mime[256];
sprintf(mime, "application/x-MacOS-%c%c%c%c", type >> 24, type >> 16, type >> 8, type);
fs_write_attr(fd, "BEOS:TYPE", B_MIME_STRING_TYPE, 0, mime, strlen(mime) + 1);
}
}
// Set MACOS:CREATOR attribute
if (creator)
fs_write_attr(fd, "MACOS:CREATOR", B_UINT32_TYPE, 0, &creator, 4);
// Close file
close(fd);
}
/*
* Get/set finder flags for file/dir specified by full path (MACOS:HFS_FLAGS attribute)
*/
void get_finder_flags(const char *path, uint16 &flags)
{
flags = DEFAULT_FINDER_FLAGS; // Default
// Open file
int fd = open(path, O_RDONLY);
if (fd < 0)
return;
// Read MACOS:HFS_FLAGS attribute
fs_read_attr(fd, "MACOS:HFS_FLAGS", B_UINT16_TYPE, 0, &flags, 2);
// Close file
close(fd);
}
void set_finder_flags(const char *path, uint16 flags)
{
// Open file
int fd = open(path, O_WRONLY);
if (fd < 0)
return;
// Write MACOS:HFS_FLAGS attribute
if (flags != DEFAULT_FINDER_FLAGS)
fs_write_attr(fd, "MACOS:HFS_FLAGS", B_UINT16_TYPE, 0, &flags, 2);
else
fs_remove_attr(fd, "MACOS:HFS_FLAGS");
// Close file
close(fd);
}
/*
* Resource fork emulation functions
*/
uint32 get_rfork_size(const char *path)
{
// Open file
int fd = open(path, O_RDONLY);
if (fd < 0)
return 0;
// Get size of MACOS:RFORK attribute
struct attr_info info;
if (fs_stat_attr(fd, "MACOS:RFORK", &info) < 0)
info.size = 0;
// Close file and return size
close(fd);
return info.size;
}
int open_rfork(const char *path, int flag)
{
// Open original file
int fd = open(path, flag);
if (fd < 0)
return -1;
// Open temporary file for resource fork
char rname[L_tmpnam];
tmpnam(rname);
int rfd = open(rname, O_RDWR | O_CREAT | O_TRUNC, 0666);
if (rfd < 0) {
close(fd);
return -1;
}
unlink(rname); // File will be deleted when closed
// Get size of MACOS:RFORK attribute
struct attr_info info;
if (fs_stat_attr(fd, "MACOS:RFORK", &info) < 0)
info.size = 0;
// Copy resource data from attribute to temporary file
if (info.size > 0) {
// Allocate buffer
void *buf = malloc(info.size);
if (buf == NULL) {
close(rfd);
close(fd);
return -1;
}
// Copy data
fs_read_attr(fd, "MACOS:RFORK", B_RAW_TYPE, 0, buf, info.size);
write(rfd, buf, info.size);
lseek(rfd, 0, SEEK_SET);
// Free buffer
if (buf)
free(buf);
}
// Close original file
close(fd);
return rfd;
}
void close_rfork(const char *path, int fd)
{
if (fd < 0)
return;
// Get size of temporary file
struct stat st;
if (fstat(fd, &st) < 0)
st.st_size = 0;
// Open original file
int ofd = open(path, O_WRONLY);
if (ofd > 0) {
// Copy resource data to MACOS:RFORK attribute
if (st.st_size > 0) {
// Allocate buffer
void *buf = malloc(st.st_size);
if (buf == NULL) {
close(ofd);
close(fd);
return;
}
// Copy data
lseek(fd, 0, SEEK_SET);
read(fd, buf, st.st_size);
fs_write_attr(ofd, "MACOS:RFORK", B_RAW_TYPE, 0, buf, st.st_size);
// Free buffer
if (buf)
free(buf);
} else
fs_remove_attr(ofd, "MACOS:RFORK");
// Close original file
close(ofd);
}
// Close temporary file
close(fd);
}
/*
* Read "length" bytes from file to "buffer",
* returns number of bytes read (or -1 on error)
*/
static inline ssize_t sread(int fd, void *buf, size_t count)
{
ssize_t res;
while ((res = read(fd, buf, count)) == B_INTERRUPTED) ;
return res;
}
ssize_t extfs_read(int fd, void *buffer, size_t length)
{
// Buffer in kernel space?
if ((uint32)buffer < 0x80000000) {
// Yes, transfer via buffer
ssize_t actual = 0;
while (length) {
size_t transfer_size = (length > TMP_BUF_SIZE) ? TMP_BUF_SIZE : length;
ssize_t res = sread(fd, tmp_buf, transfer_size);
if (res < 0)
return res;
memcpy(buffer, tmp_buf, res);
buffer = (void *)((uint8 *)buffer + res);
length -= res;
actual += res;
if (res != transfer_size)
return actual;
}
return actual;
} else {
// No, transfer directly
return sread(fd, buffer, length);
}
}
/*
* Write "length" bytes from "buffer" to file,
* returns number of bytes written (or -1 on error)
*/
static inline ssize_t swrite(int fd, void *buf, size_t count)
{
ssize_t res;
while ((res = write(fd, buf, count)) == B_INTERRUPTED) ;
return res;
}
ssize_t extfs_write(int fd, void *buffer, size_t length)
{
// Buffer in kernel space?
if ((uint32)buffer < 0x80000000) {
// Yes, transfer via buffer
ssize_t actual = 0;
while (length) {
size_t transfer_size = (length > TMP_BUF_SIZE) ? TMP_BUF_SIZE : length;
memcpy(tmp_buf, buffer, transfer_size);
ssize_t res = swrite(fd, tmp_buf, transfer_size);
if (res < 0)
return res;
buffer = (void *)((uint8 *)buffer + res);
length -= res;
actual += res;
if (res != transfer_size)
return actual;
}
return actual;
} else {
// No, transfer directly
return swrite(fd, buffer, length);
}
}
/*
* Remove file/directory, returns false on error (and sets errno)
*/
bool extfs_remove(const char *path)
{
if (remove(path) < 0) {
if (errno == EISDIR)
return rmdir(path) == 0;
else
return false;
}
return true;
}
/*
* Rename/move file/directory, returns false on error (and sets errno)
*/
bool extfs_rename(const char *old_path, const char *new_path)
{
return rename(old_path, new_path) == 0;
}