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root/cebix/BasiliskII/src/Unix/extfs_unix.cpp

Comparing BasiliskII/src/Unix/extfs_unix.cpp (file contents):
Revision 1.1 by cebix, 1999-10-19T17:41:34Z vs.
Revision 1.8 by cebix, 1999-11-08T17:00:13Z

#	Line 57 | Line 57 | void extfs_exit(void)
57
58
59		/*
60	+	*  Add component to path name
61	+	*/
62	+
63	+	void add_path_component(char *path, const char *component)
64	+	{
65	+	int l = strlen(path);
66	+	if (l < MAX_PATH_LENGTH-1 && path[l-1] != '/') {
67	+	path[l] = '/';
68	+	path[l+1] = 0;
69	+	}
70	+	strncat(path, component, MAX_PATH_LENGTH-1);
71	+	}
72	+
73	+
74	+	/*
75	+	*  Finder info and resource forks are kept in helper files
76	+	*
77	+	*  Finder info:
78	+	*    /path/.finf/file
79	+	*  Resource fork:
80	+	*    /path/.rsrc/file
81	+	*/
82	+
83	+	// Layout of Finder info helper files (all fields big-endian)
84	+	struct finf_struct {
85	+	uint32 type;
86	+	uint32 creator;
87	+	uint16 flags;
88	+	uint16 pad0;
89	+	};
90	+
91	+	static void make_helper_path(const char *src, char *dest, const char *add, bool only_dir = false)
92	+	{
93	+	dest[0] = 0;
94	+
95	+	// Get pointer to last component of path
96	+	const char *last_part = strrchr(src, '/');
97	+	if (last_part)
98	+	last_part++;
99	+	else
100	+	last_part = src;
101	+
102	+	// Copy everything before
103	+	strncpy(dest, src, last_part-src);
104	+	dest[last_part-src] = 0;
105	+
106	+	// Add additional component
107	+	strncat(dest, add, MAX_PATH_LENGTH-1);
108	+
109	+	// Add last component
110	+	if (!only_dir)
111	+	strncat(dest, last_part, MAX_PATH_LENGTH-1);
112	+	}
113	+
114	+	static int create_helper_dir(const char *path, const char *add)
115	+	{
116	+	char helper_dir[MAX_PATH_LENGTH];
117	+	make_helper_path(path, helper_dir, add, true);
118	+	return mkdir(helper_dir, 0777);
119	+	}
120	+
121	+	static int open_helper(const char *path, const char *add, int flag)
122	+	{
123	+	char helper_path[MAX_PATH_LENGTH];
124	+	make_helper_path(path, helper_path, add);
125	+
126	+	if ((flag & O_ACCMODE) == O_RDWR || (flag & O_ACCMODE) == O_WRONLY)
127	+	flag |= O_CREAT;
128	+	int fd = open(helper_path, flag, 0666);
129	+	if (fd < 0) {
130	+	if (errno == ENOENT && (flag & O_CREAT)) {
131	+	// One path component was missing, probably the helper
132	+	// directory. Try to create it and re-open the file.
133	+	int ret = create_helper_dir(path, add);
134	+	if (ret < 0)
135	+	return ret;
136	+	fd = open(helper_path, flag, 0666);
137	+	}
138	+	}
139	+	return fd;
140	+	}
141	+
142	+	static int open_finf(const char *path, int flag)
143	+	{
144	+	return open_helper(path, ".finf/", flag);
145	+	}
146	+
147	+	static int open_rsrc(const char *path, int flag)
148	+	{
149	+	return open_helper(path, ".rsrc/", flag);
150	+	}
151	+
152	+
153	+	/*
154		*  Get/set finder type/creator for file specified by full path
155		*/
156
#	Line 67 | Line 161 | struct ext2type {
161		};
162
163		static const ext2type e2t_translation[] = {
164	<	{".z", 'ZIVM', 'LZIV'},
164	>	{".Z", 'ZIVM', 'LZIV'},
165		{".gz", 'Gzip', 'Gzip'},
166		{".hqx", 'TEXT', 'SITx'},
167		{".pdf", 'PDF ', 'CARO'},
#	Line 102 | Line 196 | static const ext2type e2t_translation[]
196		{".txt", 'TEXT', 'ttxt'},
197		{".rtf", 'TEXT', 'MSWD'},
198		{".c", 'TEXT', 'R*ch'},
199	+	{".C", 'TEXT', 'R*ch'},
200		{".cc", 'TEXT', 'R*ch'},
201		{".cpp", 'TEXT', 'R*ch'},
202		{".cxx", 'TEXT', 'R*ch'},
#	Line 110 | Line 205 | static const ext2type e2t_translation[]
205		{".hpp", 'TEXT', 'R*ch'},
206		{".hxx", 'TEXT', 'R*ch'},
207		{".s", 'TEXT', 'R*ch'},
208	+	{".S", 'TEXT', 'R*ch'},
209		{".i", 'TEXT', 'R*ch'},
210		{".mpg", 'MPEG', 'TVOD'},
211		{".mpeg", 'MPEG', 'TVOD'},
#	Line 124 | Line 220 | void get_finder_type(const char *path, u
220		type = 0;
221		creator = 0;
222
223	<	// Translate file name extension to MacOS type/creator
223	>	// Open Finder info file
224	>	int fd = open_finf(path, O_RDONLY);
225	>	if (fd >= 0) {
226	>
227	>	// Read file
228	>	finf_struct finf;
229	>	if (read(fd, &finf, sizeof(finf_struct)) == sizeof(finf_struct)) {
230	>
231	>	// Type/creator are in Finder info file, return them
232	>	type = ntohl(finf.type);
233	>	creator = ntohl(finf.creator);
234	>	close(fd);
235	>	return;
236	>	}
237	>	close(fd);
238	>	}
239	>
240	>	// No Finder info file, translate file name extension to MacOS type/creator
241		int path_len = strlen(path);
242		for (int i=0; e2t_translation[i].ext; i++) {
243		int ext_len = strlen(e2t_translation[i].ext);
#	Line 140 | Line 253 | void get_finder_type(const char *path, u
253
254		void set_finder_type(const char *path, uint32 type, uint32 creator)
255		{
256	+	// Open Finder info file
257	+	int fd = open_finf(path, O_RDWR);
258	+	if (fd < 0)
259	+	return;
260	+
261	+	// Read file
262	+	finf_struct finf = {0, 0, DEFAULT_FINDER_FLAGS, 0};
263	+	read(fd, &finf, sizeof(finf_struct));
264	+
265	+	// Set Finder flags
266	+	finf.type = htonl(type);
267	+	finf.creator = htonl(creator);
268	+
269	+	// Update file
270	+	lseek(fd, 0, SEEK_SET);
271	+	write(fd, &finf, sizeof(finf_struct));
272	+	close(fd);
273		}
274
275
276		/*
277	<	*  Get/set finder flags for file/dir specified by full path (MACOS:HFS_FLAGS attribute)
277	>	*  Get/set finder flags for file/dir specified by full path
278		*/
279
280		void get_finder_flags(const char *path, uint16 &flags)
281		{
282		flags = DEFAULT_FINDER_FLAGS;   // Default
283	+
284	+	// Open Finder info file
285	+	int fd = open_finf(path, O_RDONLY);
286	+	if (fd < 0)
287	+	return;
288	+
289	+	// Read Finder flags
290	+	finf_struct finf;
291	+	if (read(fd, &finf, sizeof(finf_struct)) == sizeof(finf_struct))
292	+	flags = ntohs(finf.flags);
293	+
294	+	// Close file
295	+	close(fd);
296		}
297
298		void set_finder_flags(const char *path, uint16 flags)
299		{
300	+	// Open Finder info file
301	+	int fd = open_finf(path, O_RDWR);
302	+	if (fd < 0)
303	+	return;
304	+
305	+	// Read file
306	+	finf_struct finf = {0, 0, DEFAULT_FINDER_FLAGS, 0};
307	+	read(fd, &finf, sizeof(finf_struct));
308	+
309	+	// Set Finder flags
310	+	finf.flags = htons(flags);
311	+
312	+	// Update file
313	+	lseek(fd, 0, SEEK_SET);
314	+	write(fd, &finf, sizeof(finf_struct));
315	+	close(fd);
316		}
317
318
#	Line 163 | Line 322 | void set_finder_flags(const char *path,
322
323		uint32 get_rfork_size(const char *path)
324		{
325	<	return 0;
325	>	// Open resource file
326	>	int fd = open_rsrc(path, O_RDONLY);
327	>	if (fd < 0)
328	>	return 0;
329	>
330	>	// Get size
331	>	off_t size = lseek(fd, 0, SEEK_END);
332	>
333	>	// Close file and return size
334	>	close(fd);
335	>	return size < 0 ? 0 : size;
336		}
337
338		int open_rfork(const char *path, int flag)
339		{
340	<	return -1;
340	>	return open_rsrc(path, flag);
341		}
342
343		void close_rfork(const char *path, int fd)
344		{
345	+	close(fd);
346		}
347
348
#	Line 198 | Line 368 | size_t extfs_write(int fd, void *buffer,
368		errno = 0;
369		return write(fd, buffer, length);
370		}
371	+
372	+
373	+	/*
374	+	*  Remove file/directory (and associated helper files),
375	+	*  returns false on error (and sets errno)
376	+	*/
377	+
378	+	bool extfs_remove(const char *path)
379	+	{
380	+	// Remove helpers first, don't complain if this fails
381	+	char helper_path[MAX_PATH_LENGTH];
382	+	make_helper_path(path, helper_path, ".finf/", false);
383	+	remove(helper_path);
384	+	make_helper_path(path, helper_path, ".rsrc/", false);
385	+	remove(helper_path);
386	+
387	+	// Now remove file or directory
388	+	if (remove(path) < 0) {
389	+	if (errno == EISDIR)
390	+	return rmdir(path) == 0;
391	+	else
392	+	return false;
393	+	}
394	+	return true;
395	+	}

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