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

Comparing BasiliskII/src/Unix/extfs_unix.cpp (file contents):
Revision 1.3 by cebix, 1999-10-21T22:40:01Z vs.
Revision 1.6 by cebix, 1999-11-01T16:24:15Z

#	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, s, 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	>	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_RDWR) || (flag && 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
#	Line 141 | 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 157 | 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 180 | 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

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