src/AmigaOS/extfs_amiga.cpp

/*
 *  extfs_amiga.cpp - MacOS file system for access native file system access, AmigaOS specific stuff
 *
 *  Basilisk II (C) 1997-2000 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", 'ZIVM', 'LZIV'},
        {".gz", 'Gzip', 'Gzip'},
        {".hqx", 'TEXT', 'SITx'},
        {".pdf", 'PDF ', 'CARO'},
        {".ps", 'TEXT', 'ttxt'},
        {".sit", 'SIT!', 'SITx'},
        {".tar", 'TARF', 'TAR '},
        {".uu", 'TEXT', 'SITx'},
        {".uue", 'TEXT', 'SITx'},
        {".zip", 'ZIP ', 'ZIP '},
        {".8svx", '8SVX', 'SNDM'},
        {".aifc", 'AIFC', 'TVOD'},
        {".aiff", 'AIFF', 'TVOD'},
        {".au", 'ULAW', 'TVOD'},
        {".mid", 'MIDI', 'TVOD'},
        {".midi", 'MIDI', 'TVOD'},
        {".mp2", 'MPG ', 'TVOD'},
        {".mp3", 'MPG ', 'TVOD'},
        {".wav", 'WAVE', 'TVOD'},
        {".bmp", 'BMPf', 'ogle'},
        {".gif", 'GIFf', 'ogle'},
        {".lbm", 'ILBM', 'GKON'},
        {".ilbm", 'ILBM', 'GKON'},
        {".jpg", 'JPEG', 'ogle'},
        {".jpeg", 'JPEG', 'ogle'},
        {".pict", 'PICT', 'ogle'},
        {".png", 'PNGf', 'ogle'},
        {".sgi", '.SGI', 'ogle'},
        {".tga", 'TPIC', 'ogle'},
        {".tif", 'TIFF', 'ogle'},
        {".tiff", 'TIFF', 'ogle'},
        {".htm", 'TEXT', 'MOSS'},
        {".html", 'TEXT', 'MOSS'},
        {".txt", 'TEXT', 'ttxt'},
        {".rtf", 'TEXT', 'MSWD'},
        {".c", 'TEXT', 'R*ch'},
        {".C", 'TEXT', 'R*ch'},
        {".cc", 'TEXT', 'R*ch'},
        {".cpp", 'TEXT', 'R*ch'},
        {".cxx", 'TEXT', 'R*ch'},
        {".h", 'TEXT', 'R*ch'},
        {".hh", 'TEXT', 'R*ch'},
        {".hpp", 'TEXT', 'R*ch'},
        {".hxx", 'TEXT', 'R*ch'},
        {".s", 'TEXT', 'R*ch'},
        {".S", 'TEXT', 'R*ch'},
        {".i", 'TEXT', 'R*ch'},
        {".mpg", 'MPEG', 'TVOD'},
        {".mpeg", 'MPEG', 'TVOD'},
        {".mov", 'MooV', 'TVOD'},
        {".fli", 'FLI ', 'TVOD'},
        {".avi", 'VfW ', 'TVOD'},
        {".qxd", 'XDOC', 'XPR3'},
        {".hfv", 'DDim', 'ddsk'},
        {".dsk", 'DDim', 'ddsk'},
        {".img", 'rohd', 'ddsk'},
        {NULL, 0, 0}    // End marker
};

void get_finfo(const char *path, uint32 finfo, uint32 fxinfo)
{
        // 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
        struct stat st;
        if (stat(path, &st) == 0 && !S_ISDIR(st.st_mode)) {
                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)
{
        // 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;
}
Revision:	1.8
Committed:	2000-07-21T18:01:06Z (24 years, 4 months ago) by cebix
Branch:	MAIN
Changes since 1.7:	+40 -91 lines
Log Message:	- extfs: replaced get/set_finder_*() functions by get/set_finfo(), helper files now store complete FInfo/FXInfo
#	User	Rev	Content
1	cebix	1.1	/*
2			* extfs_amiga.cpp - MacOS file system for access native file system access, AmigaOS specific stuff
3			*
4	cebix	1.7	* Basilisk II (C) 1997-2000 Christian Bauer
5	cebix	1.1	*
6			* This program is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19			*/
20
21			#include <exec/types.h>
22			#include <proto/dos.h>
23
24			#include <sys/types.h>
25			#include <sys/stat.h>
26			#include <stdio.h>
27			#include <stdlib.h>
28			#include <unistd.h>
29			#include <fcntl.h>
30			#include <dirent.h>
31			#include <errno.h>
32
33			#include "sysdeps.h"
34			#include "extfs.h"
35			#include "extfs_defs.h"
36
37			#define DEBUG 0
38			#include "debug.h"
39
40
41			// Default Finder flags
42			const uint16 DEFAULT_FINDER_FLAGS = kHasBeenInited;
43
44
45			/*
46			* Initialization
47			*/
48
49			void extfs_init(void)
50			{
51			}
52
53
54			/*
55			* Deinitialization
56			*/
57
58			void extfs_exit(void)
59			{
60			}
61
62
63			/*
64			* Add component to path name
65			*/
66
67			void add_path_component(char path, const char component)
68			{
69			AddPart(path, (char *)component, MAX_PATH_LENGTH);
70			}
71
72
73			/*
74			* Finder info and resource forks are kept in helper files
75			*
76			* Finder info:
77			* /path/.finf/file
78			* Resource fork:
79			* /path/.rsrc/file
80	cebix	1.8	*
81			* The .finf files store a FInfo/DInfo, followed by a FXInfo/DXInfo
82			* (16+16 bytes)
83	cebix	1.1	*/
84
85			static void make_helper_path(const char src, char dest, const char *add, bool only_dir = false)
86			{
87			dest[0] = 0;
88
89			// Get pointer to last component of path
90			const char last_part = FilePart((char )src);
91
92			// Copy everything before
93			strncpy(dest, src, last_part-src);
94			dest[last_part-src] = 0;
95
96			// Add additional component
97			AddPart(dest, (char *)add, MAX_PATH_LENGTH);
98
99			// Add last component
100			if (!only_dir)
101			AddPart(dest, (char *)last_part, MAX_PATH_LENGTH);
102			}
103
104			static int create_helper_dir(const char path, const char add)
105			{
106			char helper_dir[MAX_PATH_LENGTH];
107			make_helper_path(path, helper_dir, add, true);
108	cebix	1.8	if (helper_dir[strlen(helper_dir) - 1] == '/') // Remove trailing "/"
109			helper_dir[strlen(helper_dir) - 1] = 0;
110	cebix	1.1	return mkdir(helper_dir, 0777);
111			}
112
113			static int open_helper(const char path, const char add, int flag)
114			{
115			char helper_path[MAX_PATH_LENGTH];
116			make_helper_path(path, helper_path, add);
117
118	cebix	1.2	if ((flag & O_ACCMODE) == O_RDWR \|\| (flag & O_ACCMODE) == O_WRONLY)
119	cebix	1.1	flag \|= O_CREAT;
120			int fd = open(helper_path, flag, 0666);
121			if (fd < 0) {
122			if (errno == ENOENT && (flag & O_CREAT)) {
123			// One path component was missing, probably the helper
124			// directory. Try to create it and re-open the file.
125			int ret = create_helper_dir(path, add);
126			if (ret < 0)
127			return ret;
128			fd = open(helper_path, flag, 0666);
129			}
130			}
131			return fd;
132			}
133
134			static int open_finf(const char *path, int flag)
135			{
136			return open_helper(path, ".finf/", flag);
137			}
138
139			static int open_rsrc(const char *path, int flag)
140			{
141			return open_helper(path, ".rsrc/", flag);
142			}
143
144
145			/*
146			* Get/set finder type/creator for file specified by full path
147			*/
148
149			struct ext2type {
150			const char *ext;
151			uint32 type;
152			uint32 creator;
153			};
154
155			static const ext2type e2t_translation[] = {
156			{".Z", 'ZIVM', 'LZIV'},
157			{".gz", 'Gzip', 'Gzip'},
158			{".hqx", 'TEXT', 'SITx'},
159			{".pdf", 'PDF ', 'CARO'},
160			{".ps", 'TEXT', 'ttxt'},
161			{".sit", 'SIT!', 'SITx'},
162			{".tar", 'TARF', 'TAR '},
163			{".uu", 'TEXT', 'SITx'},
164			{".uue", 'TEXT', 'SITx'},
165			{".zip", 'ZIP ', 'ZIP '},
166			{".8svx", '8SVX', 'SNDM'},
167			{".aifc", 'AIFC', 'TVOD'},
168			{".aiff", 'AIFF', 'TVOD'},
169			{".au", 'ULAW', 'TVOD'},
170			{".mid", 'MIDI', 'TVOD'},
171			{".midi", 'MIDI', 'TVOD'},
172			{".mp2", 'MPG ', 'TVOD'},
173			{".mp3", 'MPG ', 'TVOD'},
174			{".wav", 'WAVE', 'TVOD'},
175			{".bmp", 'BMPf', 'ogle'},
176			{".gif", 'GIFf', 'ogle'},
177			{".lbm", 'ILBM', 'GKON'},
178			{".ilbm", 'ILBM', 'GKON'},
179			{".jpg", 'JPEG', 'ogle'},
180			{".jpeg", 'JPEG', 'ogle'},
181			{".pict", 'PICT', 'ogle'},
182			{".png", 'PNGf', 'ogle'},
183			{".sgi", '.SGI', 'ogle'},
184			{".tga", 'TPIC', 'ogle'},
185			{".tif", 'TIFF', 'ogle'},
186			{".tiff", 'TIFF', 'ogle'},
187	cebix	1.8	{".htm", 'TEXT', 'MOSS'},
188	cebix	1.1	{".html", 'TEXT', 'MOSS'},
189			{".txt", 'TEXT', 'ttxt'},
190			{".rtf", 'TEXT', 'MSWD'},
191			{".c", 'TEXT', 'R*ch'},
192			{".C", 'TEXT', 'R*ch'},
193			{".cc", 'TEXT', 'R*ch'},
194			{".cpp", 'TEXT', 'R*ch'},
195			{".cxx", 'TEXT', 'R*ch'},
196			{".h", 'TEXT', 'R*ch'},
197			{".hh", 'TEXT', 'R*ch'},
198			{".hpp", 'TEXT', 'R*ch'},
199			{".hxx", 'TEXT', 'R*ch'},
200			{".s", 'TEXT', 'R*ch'},
201			{".S", 'TEXT', 'R*ch'},
202			{".i", 'TEXT', 'R*ch'},
203			{".mpg", 'MPEG', 'TVOD'},
204			{".mpeg", 'MPEG', 'TVOD'},
205			{".mov", 'MooV', 'TVOD'},
206			{".fli", 'FLI ', 'TVOD'},
207			{".avi", 'VfW ', 'TVOD'},
208	cebix	1.8	{".qxd", 'XDOC', 'XPR3'},
209			{".hfv", 'DDim', 'ddsk'},
210			{".dsk", 'DDim', 'ddsk'},
211			{".img", 'rohd', 'ddsk'},
212	cebix	1.1	{NULL, 0, 0} // End marker
213			};
214
215	cebix	1.8	void get_finfo(const char *path, uint32 finfo, uint32 fxinfo)
216	cebix	1.1	{
217	cebix	1.8	// Set default finder info
218			Mac_memset(finfo, 0, SIZEOF_FInfo);
219			if (fxinfo)
220			Mac_memset(fxinfo, 0, SIZEOF_FXInfo);
221			WriteMacInt16(finfo + fdFlags, DEFAULT_FINDER_FLAGS);
222			WriteMacInt32(finfo + fdLocation, (uint32)-1);
223	cebix	1.1
224	cebix	1.8	// Read Finder info file
225	cebix	1.1	int fd = open_finf(path, O_RDONLY);
226			if (fd >= 0) {
227	cebix	1.8	ssize_t actual = read(fd, Mac2HostAddr(finfo), SIZEOF_FInfo);
228			if (fxinfo)
229			actual += read(fd, Mac2HostAddr(fxinfo), SIZEOF_FXInfo);
230			close(fd);
231			if (actual >= SIZEOF_FInfo)
232	cebix	1.1	return;
233			}
234
235			// No Finder info file, translate file name extension to MacOS type/creator
236	cebix	1.8	struct stat st;
237			if (stat(path, &st) == 0 && !S_ISDIR(st.st_mode)) {
238			int path_len = strlen(path);
239			for (int i=0; e2t_translation[i].ext; i++) {
240			int ext_len = strlen(e2t_translation[i].ext);
241			if (path_len < ext_len)
242			continue;
243			if (!strcasecmp(path + path_len - ext_len, e2t_translation[i].ext)) {
244			WriteMacInt32(finfo + fdType, e2t_translation[i].type);
245			WriteMacInt32(finfo + fdCreator, e2t_translation[i].creator);
246			break;
247			}
248	cebix	1.1	}
249			}
250			}
251
252	cebix	1.8	void set_finfo(const char *path, uint32 finfo, uint32 fxinfo)
253	cebix	1.1	{
254			// Open Finder info file
255			int fd = open_finf(path, O_RDWR);
256			if (fd < 0)
257			return;
258
259	cebix	1.8	// Write file
260			write(fd, Mac2HostAddr(finfo), SIZEOF_FInfo);
261			if (fxinfo)
262			write(fd, Mac2HostAddr(fxinfo), SIZEOF_FXInfo);
263	cebix	1.1	close(fd);
264			}
265
266
267			/*
268			* Resource fork emulation functions
269			*/
270
271			uint32 get_rfork_size(const char *path)
272			{
273			// Open resource file
274			int fd = open_rsrc(path, O_RDONLY);
275			if (fd < 0)
276			return 0;
277
278			// Get size
279			off_t size = lseek(fd, 0, SEEK_END);
280
281			// Close file and return size
282			close(fd);
283			return size < 0 ? 0 : size;
284			}
285
286			int open_rfork(const char *path, int flag)
287			{
288			return open_rsrc(path, flag);
289			}
290
291			void close_rfork(const char *path, int fd)
292			{
293			close(fd);
294			}
295
296
297			/*
298			* Read "length" bytes from file to "buffer",
299	cebix	1.5	* returns number of bytes read (or -1 on error)
300	cebix	1.1	*/
301
302	cebix	1.5	ssize_t extfs_read(int fd, void *buffer, size_t length)
303	cebix	1.1	{
304			return read(fd, buffer, length);
305			}
306
307
308			/*
309			* Write "length" bytes from "buffer" to file,
310	cebix	1.5	* returns number of bytes written (or -1 on error)
311	cebix	1.1	*/
312
313	cebix	1.5	ssize_t extfs_write(int fd, void *buffer, size_t length)
314	cebix	1.1	{
315			return write(fd, buffer, length);
316			}
317
318
319			/*
320	cebix	1.3	* Remove file/directory (and associated helper files),
321			* returns false on error (and sets errno)
322			*/
323
324			bool extfs_remove(const char *path)
325			{
326			// Remove helpers first, don't complain if this fails
327			char helper_path[MAX_PATH_LENGTH];
328			make_helper_path(path, helper_path, ".finf/", false);
329			remove(helper_path);
330			make_helper_path(path, helper_path, ".rsrc/", false);
331			remove(helper_path);
332
333	cebix	1.4	// Now remove file or directory (and helper directories in the directory)
334	cebix	1.3	if (remove(path) < 0) {
335	cebix	1.4	if (errno == EISDIR \|\| errno == ENOTEMPTY) {
336			helper_path[0] = 0;
337			strncpy(helper_path, path, MAX_PATH_LENGTH-1);
338			add_path_component(helper_path, ".finf");
339			rmdir(helper_path);
340			helper_path[0] = 0;
341			strncpy(helper_path, path, MAX_PATH_LENGTH-1);
342			add_path_component(helper_path, ".rsrc");
343			rmdir(helper_path);
344	cebix	1.3	return rmdir(path) == 0;
345	cebix	1.4	} else
346	cebix	1.3	return false;
347			}
348			return true;
349	cebix	1.4	}
350
351
352			/*
353			* Rename/move file/directory (and associated helper files),
354			* returns false on error (and sets errno)
355			*/
356
357			bool extfs_rename(const char old_path, const char new_path)
358			{
359			// Rename helpers first, don't complain if this fails
360			char old_helper_path[MAX_PATH_LENGTH], new_helper_path[MAX_PATH_LENGTH];
361			make_helper_path(old_path, old_helper_path, ".finf/", false);
362			make_helper_path(new_path, new_helper_path, ".finf/", false);
363			create_helper_dir(new_path, ".finf/");
364			rename(old_helper_path, new_helper_path);
365			make_helper_path(old_path, old_helper_path, ".rsrc/", false);
366			make_helper_path(new_path, new_helper_path, ".rsrc/", false);
367			create_helper_dir(new_path, ".rsrc/");
368			rename(old_helper_path, new_helper_path);
369
370			// Now rename file
371			return rename(old_path, new_path) == 0;
372	cebix	1.3	}
373
374
375			/*
376	cebix	1.1	* ftruncate() is missing from libnix
377			*/
378
379			extern unsigned long *__stdfiledes;
380
381			int ftruncate(int fd, off_t size)
382			{
383			if (SetFileSize(__stdfiledes[fd], size, OFFSET_BEGINNING) < 0)
384			return -1;
385			else
386			return 0;
387			}