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

Comparing BasiliskII/src/Unix/extfs_unix.cpp (file contents):
Revision 1.4 by cebix, 1999-10-22T13:57:05Z vs.
Revision 1.5 by cebix, 1999-10-27T16:59:45Z

#	Line 60 | Line 60 | void extfs_exit(void)
60		*  Add component to path name
61		*/
62
63	<	void add_path_component(char *path, const char *component, int max_len)
63	>	void add_path_component(char *path, const char *component)
64		{
65		int l = strlen(path);
66	<	if (l < max_len-1 && path[l-1] != '/') {
66	>	if (l < MAX_PATH_LENGTH-1 && path[l-1] != '/') {
67		path[l] = '/';
68		path[l+1] = 0;
69		}
70	<	strncat(path, component, max_len-1);
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	>	};
89	>
90	>	static void make_helper_path(const char *src, char *dest, const char *add, bool only_dir = false)
91	>	{
92	>	dest[0] = 0;
93	>
94	>	// Get pointer to last component of path
95	>	const char *last_part = strrchr(src, '/');
96	>	if (last_part)
97	>	last_part++;
98	>	else
99	>	last_part = src;
100	>
101	>	// Copy everything before
102	>	strncpy(dest, src, last_part-src);
103	>	dest[last_part-src] = 0;
104	>
105	>	// Add additional component
106	>	strncat(dest, add, MAX_PATH_LENGTH-1);
107	>
108	>	// Add last component
109	>	if (!only_dir)
110	>	strncat(dest, last_part, MAX_PATH_LENGTH-1);
111	>	}
112	>
113	>	static int create_helper_dir(const char *path, const char *add)
114	>	{
115	>	char helper_dir[MAX_PATH_LENGTH];
116	>	make_helper_path(path, helper_dir, add, true);
117	>	return mkdir(helper_dir, 0755);
118	>	}
119	>
120	>	static int open_helper(const char *path, const char *add, int flag)
121	>	{
122	>	char helper_path[MAX_PATH_LENGTH];
123	>	make_helper_path(path, helper_path, add);
124	>
125	>	if ((flag & O_RDWR) || (flag && O_WRONLY))
126	>	flag |= O_CREAT;
127	>	int fd = open(helper_path, flag, 0644);
128	>	if (fd < 0) {
129	>	if (errno == ENOENT && (flag & O_CREAT)) {
130	>	// One path component was missing, probably the helper
131	>	// directory. Try to create it and re-open the file.
132	>	int ret = create_helper_dir(path, add);
133	>	if (ret < 0)
134	>	return ret;
135	>	fd = open(helper_path, flag, 0644);
136	>	}
137	>	}
138	>	return fd;
139	>	}
140	>
141	>	static int open_finf(const char *path, int flag)
142	>	{
143	>	return open_helper(path, ".finf/", flag);
144	>	}
145	>
146	>	static int open_rsrc(const char *path, int flag)
147	>	{
148	>	return open_helper(path, ".rsrc/", flag);
149		}
150
151
#	Line 141 | Line 219 | void get_finder_type(const char *path, u
219		type = 0;
220		creator = 0;
221
222	<	// Translate file name extension to MacOS type/creator
222	>	// Open Finder info file
223	>	int fd = open_finf(path, O_RDONLY);
224	>	if (fd >= 0) {
225	>
226	>	// Read file
227	>	finf_struct finf;
228	>	if (read(fd, &finf, sizeof(finf_struct)) == sizeof(finf_struct)) {
229	>
230	>	// Type/creator are in Finder info file, return them
231	>	type = ntohl(finf.type);
232	>	creator = ntohl(finf.creator);
233	>	close(fd);
234	>	return;
235	>	}
236	>	close(fd);
237	>	}
238	>
239	>	// No Finder info file, translate file name extension to MacOS type/creator
240		int path_len = strlen(path);
241		for (int i=0; e2t_translation[i].ext; i++) {
242		int ext_len = strlen(e2t_translation[i].ext);
#	Line 157 | Line 252 | void get_finder_type(const char *path, u
252
253		void set_finder_type(const char *path, uint32 type, uint32 creator)
254		{
255	+	// Open Finder info file
256	+	int fd = open_finf(path, O_RDWR);
257	+	if (fd < 0)
258	+	return;
259	+
260	+	// Read file
261	+	finf_struct finf = {0, 0, DEFAULT_FINDER_FLAGS};
262	+	read(fd, &finf, sizeof(finf_struct));
263	+
264	+	// Set Finder flags
265	+	finf.type = htonl(type);
266	+	finf.creator = htonl(creator);
267	+
268	+	// Update file
269	+	lseek(fd, 0, SEEK_SET);
270	+	write(fd, &finf, sizeof(finf_struct));
271	+	close(fd);
272		}
273
274
275		/*
276	<	*  Get/set finder flags for file/dir specified by full path (MACOS:HFS_FLAGS attribute)
276	>	*  Get/set finder flags for file/dir specified by full path
277		*/
278
279		void get_finder_flags(const char *path, uint16 &flags)
280		{
281		flags = DEFAULT_FINDER_FLAGS;   // Default
282	+
283	+	// Open Finder info file
284	+	int fd = open_finf(path, O_RDONLY);
285	+	if (fd < 0)
286	+	return;
287	+
288	+	// Read Finder flags
289	+	finf_struct finf;
290	+	if (read(fd, &finf, sizeof(finf_struct)) == sizeof(finf_struct))
291	+	flags = ntohs(finf.flags);
292	+
293	+	// Close file
294	+	close(fd);
295		}
296
297		void set_finder_flags(const char *path, uint16 flags)
298		{
299	+	// Open Finder info file
300	+	int fd = open_finf(path, O_RDWR);
301	+	if (fd < 0)
302	+	return;
303	+
304	+	// Read file
305	+	finf_struct finf = {0, 0, DEFAULT_FINDER_FLAGS};
306	+	read(fd, &finf, sizeof(finf_struct));
307	+
308	+	// Set Finder flags
309	+	finf.flags = htons(flags);
310	+
311	+	// Update file
312	+	lseek(fd, 0, SEEK_SET);
313	+	write(fd, &finf, sizeof(finf_struct));
314	+	close(fd);
315		}
316
317
#	Line 180 | Line 321 | void set_finder_flags(const char *path,
321
322		uint32 get_rfork_size(const char *path)
323		{
324	<	return 0;
324	>	// Open resource file
325	>	int fd = open_rsrc(path, O_RDONLY);
326	>	if (fd < 0)
327	>	return 0;
328	>
329	>	// Get size
330	>	off_t size = lseek(fd, 0, SEEK_END);
331	>
332	>	// Close file and return size
333	>	close(fd);
334	>	return size < 0 ? 0 : size;
335		}
336
337		int open_rfork(const char *path, int flag)
338		{
339	<	return -1;
339	>	return open_rsrc(path, flag);
340		}
341
342		void close_rfork(const char *path, int fd)
343		{
344	+	close(fd);
345		}
346
347

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