src/AmigaOS/extfs_amiga.cpp

/*
 *  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>
#define __USE_SYSBASE
#include <proto/dos.h>
#include <inline/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;
}
Revision:	1.14
Committed:	2002-06-23T08:27:05Z (22 years, 5 months ago) by jlachmann
Branch:	MAIN
CVS Tags:	nigel-build-19, nigel-build-12, nigel-build-13, nigel-build-16, nigel-build-17, nigel-build-15
Changes since 1.13:	+3 -1 lines
Log Message:	Adapted to OO video scheme; Audio volume/muting/sample rate now settable
#	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	jlachmann	1.14	* Basilisk II (C) 1997-2001 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	jlachmann	1.14	#define __USE_SYSBASE
23	cebix	1.1	#include <proto/dos.h>
24	jlachmann	1.14	#include <inline/dos.h>
25	cebix	1.1
26			#include <sys/types.h>
27			#include <sys/stat.h>
28			#include <stdio.h>
29			#include <stdlib.h>
30			#include <unistd.h>
31			#include <fcntl.h>
32			#include <dirent.h>
33			#include <errno.h>
34
35			#include "sysdeps.h"
36			#include "extfs.h"
37			#include "extfs_defs.h"
38
39			#define DEBUG 0
40			#include "debug.h"
41
42
43			// Default Finder flags
44			const uint16 DEFAULT_FINDER_FLAGS = kHasBeenInited;
45
46
47			/*
48			* Initialization
49			*/
50
51			void extfs_init(void)
52			{
53			}
54
55
56			/*
57			* Deinitialization
58			*/
59
60			void extfs_exit(void)
61			{
62			}
63
64
65			/*
66			* Add component to path name
67			*/
68
69			void add_path_component(char path, const char component)
70			{
71			AddPart(path, (char *)component, MAX_PATH_LENGTH);
72			}
73
74
75			/*
76			* Finder info and resource forks are kept in helper files
77			*
78			* Finder info:
79			* /path/.finf/file
80			* Resource fork:
81			* /path/.rsrc/file
82	cebix	1.8	*
83			* The .finf files store a FInfo/DInfo, followed by a FXInfo/DXInfo
84			* (16+16 bytes)
85	cebix	1.1	*/
86
87			static void make_helper_path(const char src, char dest, const char *add, bool only_dir = false)
88			{
89			dest[0] = 0;
90
91			// Get pointer to last component of path
92			const char last_part = FilePart((char )src);
93
94			// Copy everything before
95			strncpy(dest, src, last_part-src);
96			dest[last_part-src] = 0;
97
98			// Add additional component
99			AddPart(dest, (char *)add, MAX_PATH_LENGTH);
100
101			// Add last component
102			if (!only_dir)
103			AddPart(dest, (char *)last_part, MAX_PATH_LENGTH);
104			}
105
106			static int create_helper_dir(const char path, const char add)
107			{
108			char helper_dir[MAX_PATH_LENGTH];
109			make_helper_path(path, helper_dir, add, true);
110	cebix	1.8	if (helper_dir[strlen(helper_dir) - 1] == '/') // Remove trailing "/"
111			helper_dir[strlen(helper_dir) - 1] = 0;
112	cebix	1.1	return mkdir(helper_dir, 0777);
113			}
114
115			static int open_helper(const char path, const char add, int flag)
116			{
117			char helper_path[MAX_PATH_LENGTH];
118			make_helper_path(path, helper_path, add);
119
120	cebix	1.2	if ((flag & O_ACCMODE) == O_RDWR \|\| (flag & O_ACCMODE) == O_WRONLY)
121	cebix	1.1	flag \|= O_CREAT;
122			int fd = open(helper_path, flag, 0666);
123			if (fd < 0) {
124			if (errno == ENOENT && (flag & O_CREAT)) {
125			// One path component was missing, probably the helper
126			// directory. Try to create it and re-open the file.
127			int ret = create_helper_dir(path, add);
128			if (ret < 0)
129			return ret;
130			fd = open(helper_path, flag, 0666);
131			}
132			}
133			return fd;
134			}
135
136			static int open_finf(const char *path, int flag)
137			{
138			return open_helper(path, ".finf/", flag);
139			}
140
141			static int open_rsrc(const char *path, int flag)
142			{
143			return open_helper(path, ".rsrc/", flag);
144			}
145
146
147			/*
148			* Get/set finder type/creator for file specified by full path
149			*/
150
151			struct ext2type {
152			const char *ext;
153			uint32 type;
154			uint32 creator;
155			};
156
157			static const ext2type e2t_translation[] = {
158	cebix	1.9	{".z", FOURCC('Z','I','V','M'), FOURCC('L','Z','I','V')},
159			{".gz", FOURCC('G','z','i','p'), FOURCC('G','z','i','p')},
160			{".hqx", FOURCC('T','E','X','T'), FOURCC('S','I','T','x')},
161	cebix	1.10	{".bin", FOURCC('T','E','X','T'), FOURCC('S','I','T','x')},
162	cebix	1.9	{".pdf", FOURCC('P','D','F',' '), FOURCC('C','A','R','O')},
163			{".ps", FOURCC('T','E','X','T'), FOURCC('t','t','x','t')},
164			{".sit", FOURCC('S','I','T','!'), FOURCC('S','I','T','x')},
165			{".tar", FOURCC('T','A','R','F'), FOURCC('T','A','R',' ')},
166			{".uu", FOURCC('T','E','X','T'), FOURCC('S','I','T','x')},
167			{".uue", FOURCC('T','E','X','T'), FOURCC('S','I','T','x')},
168			{".zip", FOURCC('Z','I','P',' '), FOURCC('Z','I','P',' ')},
169			{".8svx", FOURCC('8','S','V','X'), FOURCC('S','N','D','M')},
170			{".aifc", FOURCC('A','I','F','C'), FOURCC('T','V','O','D')},
171			{".aiff", FOURCC('A','I','F','F'), FOURCC('T','V','O','D')},
172			{".au", FOURCC('U','L','A','W'), FOURCC('T','V','O','D')},
173			{".mid", FOURCC('M','I','D','I'), FOURCC('T','V','O','D')},
174			{".midi", FOURCC('M','I','D','I'), FOURCC('T','V','O','D')},
175			{".mp2", FOURCC('M','P','G',' '), FOURCC('T','V','O','D')},
176			{".mp3", FOURCC('M','P','G',' '), FOURCC('T','V','O','D')},
177			{".wav", FOURCC('W','A','V','E'), FOURCC('T','V','O','D')},
178			{".bmp", FOURCC('B','M','P','f'), FOURCC('o','g','l','e')},
179			{".gif", FOURCC('G','I','F','f'), FOURCC('o','g','l','e')},
180			{".lbm", FOURCC('I','L','B','M'), FOURCC('G','K','O','N')},
181			{".ilbm", FOURCC('I','L','B','M'), FOURCC('G','K','O','N')},
182			{".jpg", FOURCC('J','P','E','G'), FOURCC('o','g','l','e')},
183			{".jpeg", FOURCC('J','P','E','G'), FOURCC('o','g','l','e')},
184			{".pict", FOURCC('P','I','C','T'), FOURCC('o','g','l','e')},
185			{".png", FOURCC('P','N','G','f'), FOURCC('o','g','l','e')},
186			{".sgi", FOURCC('.','S','G','I'), FOURCC('o','g','l','e')},
187			{".tga", FOURCC('T','P','I','C'), FOURCC('o','g','l','e')},
188			{".tif", FOURCC('T','I','F','F'), FOURCC('o','g','l','e')},
189			{".tiff", FOURCC('T','I','F','F'), FOURCC('o','g','l','e')},
190			{".htm", FOURCC('T','E','X','T'), FOURCC('M','O','S','S')},
191			{".html", FOURCC('T','E','X','T'), FOURCC('M','O','S','S')},
192			{".txt", FOURCC('T','E','X','T'), FOURCC('t','t','x','t')},
193			{".rtf", FOURCC('T','E','X','T'), FOURCC('M','S','W','D')},
194			{".c", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
195			{".cc", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
196			{".cpp", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
197			{".cxx", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
198			{".h", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
199			{".hh", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
200			{".hpp", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
201			{".hxx", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
202			{".s", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
203			{".i", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')},
204			{".mpg", FOURCC('M','P','E','G'), FOURCC('T','V','O','D')},
205			{".mpeg", FOURCC('M','P','E','G'), FOURCC('T','V','O','D')},
206			{".mov", FOURCC('M','o','o','V'), FOURCC('T','V','O','D')},
207			{".fli", FOURCC('F','L','I',' '), FOURCC('T','V','O','D')},
208			{".avi", FOURCC('V','f','W',' '), FOURCC('T','V','O','D')},
209			{".qxd", FOURCC('X','D','O','C'), FOURCC('X','P','R','3')},
210			{".hfv", FOURCC('D','D','i','m'), FOURCC('d','d','s','k')},
211			{".dsk", FOURCC('D','D','i','m'), FOURCC('d','d','s','k')},
212			{".img", FOURCC('r','o','h','d'), FOURCC('d','d','s','k')},
213	cebix	1.1	{NULL, 0, 0} // End marker
214			};
215
216	cebix	1.12	void get_finfo(const char *path, uint32 finfo, uint32 fxinfo, bool is_dir)
217	cebix	1.1	{
218	cebix	1.8	// Set default finder info
219			Mac_memset(finfo, 0, SIZEOF_FInfo);
220			if (fxinfo)
221			Mac_memset(fxinfo, 0, SIZEOF_FXInfo);
222			WriteMacInt16(finfo + fdFlags, DEFAULT_FINDER_FLAGS);
223			WriteMacInt32(finfo + fdLocation, (uint32)-1);
224	cebix	1.1
225	cebix	1.8	// Read Finder info file
226	cebix	1.1	int fd = open_finf(path, O_RDONLY);
227			if (fd >= 0) {
228	cebix	1.8	ssize_t actual = read(fd, Mac2HostAddr(finfo), SIZEOF_FInfo);
229			if (fxinfo)
230			actual += read(fd, Mac2HostAddr(fxinfo), SIZEOF_FXInfo);
231			close(fd);
232			if (actual >= SIZEOF_FInfo)
233	cebix	1.1	return;
234			}
235
236			// No Finder info file, translate file name extension to MacOS type/creator
237	cebix	1.12	if (!is_dir) {
238	cebix	1.8	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	1.12	void set_finfo(const char *path, uint32 finfo, uint32 fxinfo, bool is_dir)
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			}