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1 | /* Unix emulation routines for GNU Emacs on the Mac OS. |
2 | Copyright (C) 2000 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs 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, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | /* Contributed by Andrew Choi (akochoi@users.sourceforge.net). */ | |
22 | ||
23 | #include <config.h> | |
24 | ||
25 | #include <stdio.h> | |
26 | #include <errno.h> | |
27 | #include <utime.h> | |
28 | #include <dirent.h> | |
29 | #include <sys/stat.h> | |
30 | #include <string.h> | |
31 | #include <pwd.h> | |
32 | #include <sys/param.h> | |
33 | #if __MWERKS__ | |
34 | #include <unistd.h> | |
35 | #endif | |
36 | ||
37 | #include <Files.h> | |
38 | #include <MacTypes.h> | |
39 | #include <TextUtils.h> | |
40 | #include <Folders.h> | |
41 | #include <Resources.h> | |
42 | #include <Aliases.h> | |
43 | #include <FixMath.h> | |
44 | #include <Timer.h> | |
45 | #include <OSA.h> | |
46 | #include <AppleScript.h> | |
47 | ||
48 | #include "lisp.h" | |
49 | #include "process.h" | |
50 | #include "sysselect.h" | |
51 | #include "systime.h" | |
52 | ||
53 | Lisp_Object QCLIPBOARD; | |
54 | ||
55 | /* An instance of the AppleScript component. */ | |
56 | static ComponentInstance as_scripting_component; | |
57 | /* The single script context used for all script executions. */ | |
58 | static OSAID as_script_context; | |
59 | ||
60 | ||
61 | /* When converting from Mac to Unix pathnames, /'s in folder names are | |
62 | converted to :'s. This function, used in copying folder names, | |
63 | performs a strncat and converts all character a to b in the copy of | |
64 | the string s2 appended to the end of s1. */ | |
65 | ||
66 | void | |
67 | string_cat_and_replace (char *s1, const char *s2, int n, char a, char b) | |
68 | { | |
69 | int l1 = strlen (s1); | |
70 | int l2 = strlen (s2); | |
71 | char *p = s1 + l1; | |
72 | int i; | |
73 | ||
74 | strncat (s1, s2, n); | |
75 | for (i = 0; i < l2; i++) | |
76 | { | |
77 | if (*p == a) | |
78 | *p = b; | |
79 | p++; | |
80 | } | |
81 | } | |
82 | ||
83 | ||
84 | /* Convert a Mac pathname to Unix form. A Mac full pathname is one | |
85 | that does not begin with a ':' and contains at least one ':'. A Mac | |
86 | full pathname causes an '/' to be prepended to the Unix pathname. | |
87 | The algorithm for the rest of the pathname is as follows: | |
88 | For each segment between two ':', | |
89 | if it is non-null, copy as is and then add a '/' at the end, | |
90 | otherwise, insert a "../" into the Unix pathname. | |
91 | Returns 1 if successful; 0 if fails. */ | |
92 | ||
93 | int | |
94 | mac_to_unix_pathname (const char *mfn, char *ufn, int ufnbuflen) | |
95 | { | |
96 | const char *p, *q, *pe; | |
97 | ||
98 | strcpy (ufn, ""); | |
99 | ||
100 | if (*mfn == '\0') | |
101 | return 1; | |
102 | ||
103 | p = strchr (mfn, ':'); | |
104 | if (p != 0 && p != mfn) /* full pathname */ | |
105 | strcat (ufn, "/"); | |
106 | ||
107 | p = mfn; | |
108 | if (*p == ':') | |
109 | p++; | |
110 | ||
111 | pe = mfn + strlen (mfn); | |
112 | while (p < pe) | |
113 | { | |
114 | q = strchr (p, ':'); | |
115 | if (q) | |
116 | { | |
117 | if (q == p) | |
118 | { /* two consecutive ':' */ | |
119 | if (strlen (ufn) + 3 >= ufnbuflen) | |
120 | return 0; | |
121 | strcat (ufn, "../"); | |
122 | } | |
123 | else | |
124 | { | |
125 | if (strlen (ufn) + (q - p) + 1 >= ufnbuflen) | |
126 | return 0; | |
127 | string_cat_and_replace (ufn, p, q - p, '/', ':'); | |
128 | strcat (ufn, "/"); | |
129 | } | |
130 | p = q + 1; | |
131 | } | |
132 | else | |
133 | { | |
134 | if (strlen (ufn) + (pe - p) >= ufnbuflen) | |
135 | return 0; | |
136 | string_cat_and_replace (ufn, p, pe - p, '/', ':'); | |
137 | /* no separator for last one */ | |
138 | p = pe; | |
139 | } | |
140 | } | |
141 | ||
142 | return 1; | |
143 | } | |
144 | ||
145 | ||
146 | extern char *get_temp_dir_name (); | |
147 | ||
148 | ||
149 | /* Convert a Unix pathname to Mac form. Approximately reverse of the | |
150 | above in algorithm. */ | |
151 | ||
152 | int | |
153 | unix_to_mac_pathname (const char *ufn, char *mfn, int mfnbuflen) | |
154 | { | |
155 | const char *p, *q, *pe; | |
156 | char expanded_pathname[MAXPATHLEN+1]; | |
157 | ||
158 | strcpy (mfn, ""); | |
159 | ||
160 | if (*ufn == '\0') | |
161 | return 1; | |
162 | ||
163 | p = ufn; | |
164 | ||
165 | /* Check for and handle volume names. Last comparison: strangely | |
166 | somewhere "/.emacs" is passed. A temporary fix for now. */ | |
167 | if (*p == '/' && strchr (p+1, '/') == NULL && strcmp (p, "/.emacs") != 0) | |
168 | { | |
169 | if (strlen (p) + 1 > mfnbuflen) | |
170 | return 0; | |
171 | strcpy (mfn, p+1); | |
172 | strcat (mfn, ":"); | |
173 | return 1; | |
174 | } | |
175 | ||
176 | /* expand to emacs dir found by init_emacs_passwd_dir */ | |
177 | if (strncmp (p, "~emacs/", 7) == 0) | |
178 | { | |
179 | struct passwd *pw = getpwnam ("emacs"); | |
180 | p += 7; | |
181 | if (strlen (pw->pw_dir) + strlen (p) > MAXPATHLEN) | |
182 | return 0; | |
183 | strcpy (expanded_pathname, pw->pw_dir); | |
184 | strcat (expanded_pathname, p); | |
185 | p = expanded_pathname; | |
186 | /* now p points to the pathname with emacs dir prefix */ | |
187 | } | |
188 | else if (strncmp (p, "/tmp/", 5) == 0) | |
189 | { | |
190 | char *t = get_temp_dir_name (); | |
191 | p += 5; | |
192 | if (strlen (t) + strlen (p) > MAXPATHLEN) | |
193 | return 0; | |
194 | strcpy (expanded_pathname, t); | |
195 | strcat (expanded_pathname, p); | |
196 | p = expanded_pathname; | |
197 | /* now p points to the pathname with emacs dir prefix */ | |
198 | } | |
199 | else if (*p != '/') /* relative pathname */ | |
200 | strcat (mfn, ":"); | |
201 | ||
202 | if (*p == '/') | |
203 | p++; | |
204 | ||
205 | pe = p + strlen (p); | |
206 | while (p < pe) | |
207 | { | |
208 | q = strchr (p, '/'); | |
209 | if (q) | |
210 | { | |
211 | if (q - p == 2 && *p == '.' && *(p+1) == '.') | |
212 | { | |
213 | if (strlen (mfn) + 1 >= mfnbuflen) | |
214 | return 0; | |
215 | strcat (mfn, ":"); | |
216 | } | |
217 | else | |
218 | { | |
219 | if (strlen (mfn) + (q - p) + 1 >= mfnbuflen) | |
220 | return 0; | |
221 | string_cat_and_replace (mfn, p, q - p, ':', '/'); | |
222 | strcat (mfn, ":"); | |
223 | } | |
224 | p = q + 1; | |
225 | } | |
226 | else | |
227 | { | |
228 | if (strlen (mfn) + (pe - p) >= mfnbuflen) | |
229 | return 0; | |
230 | string_cat_and_replace (mfn, p, pe - p, ':', '/'); | |
231 | p = pe; | |
232 | } | |
233 | } | |
234 | ||
235 | return 1; | |
236 | } | |
237 | ||
238 | ||
239 | /* The following functions with "sys_" prefix are stubs to Unix | |
240 | functions that have already been implemented by CW or MPW. The | |
241 | calls to them in Emacs source course are #define'd to call the sys_ | |
242 | versions by the header files s-mac.h. In these stubs pathnames are | |
243 | converted between their Unix and Mac forms. */ | |
244 | ||
245 | ||
246 | /* Unix epoch is Jan 1, 1970 while Mac epoch is Jan 1, 1904: 66 years | |
247 | + 17 leap days. These are for adjusting time values returned by | |
248 | MacOS Toolbox functions. */ | |
249 | ||
250 | #define MAC_UNIX_EPOCH_DIFF ((365L * 66 + 17) * 24 * 60 * 60) | |
251 | ||
252 | #ifdef __MWERKS__ | |
253 | #ifndef CODEWARRIOR_VERSION_6 | |
254 | /* CW Pro 5 epoch is Jan 1, 1900 (aaarghhhhh!); remember, 1900 is not | |
255 | a leap year! This is for adjusting time_t values returned by MSL | |
256 | functions. */ | |
257 | #define CW_OR_MPW_UNIX_EPOCH_DIFF ((365L * 70 + 17) * 24 * 60 * 60) | |
258 | #else | |
259 | /* CW changes Pro 6 to following Unix! */ | |
260 | #define CW_OR_MPW_UNIX_EPOCH_DIFF ((365L * 66 + 17) * 24 * 60 * 60) | |
261 | #endif | |
262 | #elif __MRC__ | |
263 | /* MPW library functions follow Unix (confused?). */ | |
264 | #define CW_OR_MPW_UNIX_EPOCH_DIFF ((365L * 66 + 17) * 24 * 60 * 60) | |
265 | #else | |
266 | You lose!!! | |
267 | #endif | |
268 | ||
269 | ||
270 | /* Define our own stat function for both MrC and CW. The reason for | |
271 | doing this: "stat" is both the name of a struct and function name: | |
272 | can't use the same trick like that for sys_open, sys_close, etc. to | |
273 | redirect Emacs's calls to our own version that converts Unix style | |
274 | filenames to Mac style filename because all sorts of compilation | |
275 | errors will be generated if stat is #define'd to be sys_stat. */ | |
276 | ||
277 | int | |
278 | stat_noalias (const char *path, struct stat *buf) | |
279 | { | |
280 | char mac_pathname[MAXPATHLEN+1]; | |
281 | CInfoPBRec cipb; | |
282 | ||
283 | if (unix_to_mac_pathname (path, mac_pathname, MAXPATHLEN+1) == 0) | |
284 | return -1; | |
285 | ||
286 | c2pstr (mac_pathname); | |
287 | cipb.hFileInfo.ioNamePtr = mac_pathname; | |
288 | cipb.hFileInfo.ioVRefNum = 0; | |
289 | cipb.hFileInfo.ioDirID = 0; | |
290 | cipb.hFileInfo.ioFDirIndex = 0; | |
291 | /* set to 0 to get information about specific dir or file */ | |
292 | ||
293 | errno = PBGetCatInfo (&cipb, false); | |
294 | if (errno == -43) /* -43: fnfErr defined in Errors.h */ | |
295 | errno = ENOENT; | |
296 | if (errno != noErr) | |
297 | return -1; | |
298 | ||
299 | if (cipb.hFileInfo.ioFlAttrib & 0x10) /* bit 4 = 1 for directories */ | |
300 | { | |
301 | buf->st_mode = S_IFDIR | S_IREAD | S_IEXEC; | |
302 | ||
303 | if (!(cipb.hFileInfo.ioFlAttrib & 0x1)) | |
304 | buf->st_mode |= S_IWRITE; /* bit 1 = 1 for locked files/directories */ | |
305 | buf->st_ino = cipb.dirInfo.ioDrDirID; | |
306 | buf->st_dev = cipb.dirInfo.ioVRefNum; | |
307 | buf->st_size = cipb.dirInfo.ioDrNmFls; | |
308 | /* size of dir = number of files and dirs */ | |
309 | buf->st_atime | |
310 | = buf->st_mtime | |
311 | = cipb.dirInfo.ioDrMdDat - MAC_UNIX_EPOCH_DIFF; | |
312 | buf->st_ctime = cipb.dirInfo.ioDrCrDat - MAC_UNIX_EPOCH_DIFF; | |
313 | } | |
314 | else | |
315 | { | |
316 | buf->st_mode = S_IFREG | S_IREAD; | |
317 | if (!(cipb.hFileInfo.ioFlAttrib & 0x1)) | |
318 | buf->st_mode |= S_IWRITE; /* bit 1 = 1 for locked files/directories */ | |
319 | if (cipb.hFileInfo.ioFlFndrInfo.fdType == 'APPL') | |
320 | buf->st_mode |= S_IEXEC; | |
321 | buf->st_ino = cipb.hFileInfo.ioDirID; | |
322 | buf->st_dev = cipb.hFileInfo.ioVRefNum; | |
323 | buf->st_size = cipb.hFileInfo.ioFlLgLen; | |
324 | buf->st_atime | |
325 | = buf->st_mtime | |
326 | = cipb.hFileInfo.ioFlMdDat - MAC_UNIX_EPOCH_DIFF; | |
327 | buf->st_ctime = cipb.hFileInfo.ioFlCrDat - MAC_UNIX_EPOCH_DIFF; | |
328 | } | |
329 | ||
330 | if (cipb.hFileInfo.ioFlFndrInfo.fdFlags & 0x8000) | |
331 | { | |
332 | /* identify alias files as symlinks */ | |
333 | buf->st_mode |= S_IFLNK; | |
334 | buf->st_mode &= ~S_IFREG; | |
335 | } | |
336 | ||
337 | buf->st_nlink = 1; | |
338 | buf->st_uid = getuid (); | |
339 | buf->st_gid = getgid (); | |
340 | buf->st_rdev = 0; | |
341 | ||
342 | return 0; | |
343 | } | |
344 | ||
345 | ||
346 | int | |
347 | lstat (const char *path, struct stat *buf) | |
348 | { | |
349 | int result; | |
350 | char true_pathname[MAXPATHLEN+1]; | |
351 | ||
352 | /* Try looking for the file without resolving aliases first. */ | |
353 | if ((result = stat_noalias (path, buf)) >= 0) | |
354 | return result; | |
355 | ||
356 | if (find_true_pathname (path, true_pathname, MAXPATHLEN+1) == -1) | |
357 | return -1; | |
358 | ||
359 | return stat_noalias (true_pathname, buf); | |
360 | } | |
361 | ||
362 | ||
363 | int | |
364 | stat (const char *path, struct stat *sb) | |
365 | { | |
366 | int result; | |
367 | char true_pathname[MAXPATHLEN+1], fully_resolved_name[MAXPATHLEN+1]; | |
368 | int len; | |
369 | ||
370 | if ((result = stat_noalias (path, sb)) >= 0) | |
371 | return result; | |
372 | ||
373 | if (find_true_pathname (path, true_pathname, MAXPATHLEN+1) == -1) | |
374 | return -1; | |
375 | ||
376 | len = readlink (true_pathname, fully_resolved_name, MAXPATHLEN); | |
377 | if (len > -1) | |
378 | { | |
379 | fully_resolved_name[len] = '\0'; | |
380 | /* in fact our readlink terminates strings */ | |
381 | return lstat (fully_resolved_name, sb); | |
382 | } | |
383 | else | |
384 | return lstat (true_pathname, sb); | |
385 | } | |
386 | ||
387 | ||
388 | #if __MRC__ | |
389 | /* CW defines fstat in stat.mac.c while MPW does not provide this | |
390 | function. Without the information of how to get from a file | |
391 | descriptor in MPW StdCLib to a Mac OS file spec, it should be hard | |
392 | to implement this function. Fortunately, there is only one place | |
393 | where this function is called in our configuration: in fileio.c, | |
394 | where only the st_dev and st_ino fields are used to determine | |
395 | whether two fildes point to different i-nodes to prevent copying | |
396 | a file onto itself equal. What we have here probably needs | |
397 | improvement. */ | |
398 | ||
399 | int | |
400 | fstat (int fildes, struct stat *buf) | |
401 | { | |
402 | buf->st_dev = 0; | |
403 | buf->st_ino = fildes; | |
404 | buf->st_mode = S_IFREG; /* added by T.I. for the copy-file */ | |
405 | return 0; /* success */ | |
406 | } | |
407 | #endif /* __MRC__ */ | |
408 | ||
409 | ||
410 | /* Adapted from Think Reference code example. */ | |
411 | ||
412 | int | |
413 | mkdir (const char *dirname, int mode) | |
414 | { | |
415 | #pragma unused(mode) | |
416 | ||
417 | HFileParam hfpb; | |
418 | char true_pathname[MAXPATHLEN+1], mac_pathname[MAXPATHLEN+1]; | |
419 | ||
420 | if (find_true_pathname (dirname, true_pathname, MAXPATHLEN+1) == -1) | |
421 | return -1; | |
422 | ||
423 | if (unix_to_mac_pathname (true_pathname, mac_pathname, MAXPATHLEN+1) == 0) | |
424 | return -1; | |
425 | ||
426 | c2pstr (mac_pathname); | |
427 | hfpb.ioNamePtr = mac_pathname; | |
428 | hfpb.ioVRefNum = 0; /* ignored unless name is invalid */ | |
429 | hfpb.ioDirID = 0; /* parent is the root */ | |
430 | ||
431 | errno = PBDirCreate ((HParmBlkPtr) &hfpb, false); | |
432 | /* just return the Mac OSErr code for now */ | |
433 | return errno == noErr ? 0 : -1; | |
434 | } | |
435 | ||
436 | ||
437 | #undef rmdir | |
438 | sys_rmdir (const char *dirname) | |
439 | { | |
440 | HFileParam hfpb; | |
441 | char mac_pathname[MAXPATHLEN+1]; | |
442 | ||
443 | if (unix_to_mac_pathname (dirname, mac_pathname, MAXPATHLEN+1) == 0) | |
444 | return -1; | |
445 | ||
446 | c2pstr (mac_pathname); | |
447 | hfpb.ioNamePtr = mac_pathname; | |
448 | hfpb.ioVRefNum = 0; /* ignored unless name is invalid */ | |
449 | hfpb.ioDirID = 0; /* parent is the root */ | |
450 | ||
451 | errno = PBHDelete ((HParmBlkPtr) &hfpb, false); | |
452 | return errno == noErr ? 0 : -1; | |
453 | } | |
454 | ||
455 | ||
456 | #ifdef __MRC__ | |
457 | /* No implementation yet. */ | |
458 | int | |
459 | execvp (const char *path, ...) | |
460 | { | |
461 | return -1; | |
462 | } | |
463 | #endif /* __MRC__ */ | |
464 | ||
465 | ||
466 | int | |
467 | utime (const char *path, const struct utimbuf *times) | |
468 | { | |
469 | char true_pathname[MAXPATHLEN+1], fully_resolved_name[MAXPATHLEN+1]; | |
470 | int len; | |
471 | char mac_pathname[MAXPATHLEN+1]; | |
472 | CInfoPBRec cipb; | |
473 | ||
474 | if (find_true_pathname (path, true_pathname, MAXPATHLEN+1) == -1) | |
475 | return -1; | |
476 | ||
477 | len = readlink (true_pathname, fully_resolved_name, MAXPATHLEN); | |
478 | if (len > -1) | |
479 | fully_resolved_name[len] = '\0'; | |
480 | else | |
481 | strcpy (fully_resolved_name, true_pathname); | |
482 | ||
483 | if (!unix_to_mac_pathname (fully_resolved_name, mac_pathname, MAXPATHLEN+1)) | |
484 | return -1; | |
485 | ||
486 | c2pstr (mac_pathname); | |
487 | cipb.hFileInfo.ioNamePtr = mac_pathname; | |
488 | cipb.hFileInfo.ioVRefNum = 0; | |
489 | cipb.hFileInfo.ioDirID = 0; | |
490 | cipb.hFileInfo.ioFDirIndex = 0; | |
491 | /* set to 0 to get information about specific dir or file */ | |
492 | ||
493 | errno = PBGetCatInfo (&cipb, false); | |
494 | if (errno != noErr) | |
495 | return -1; | |
496 | ||
497 | if (cipb.hFileInfo.ioFlAttrib & 0x10) /* bit 4 = 1 for directories */ | |
498 | { | |
499 | if (times) | |
500 | cipb.dirInfo.ioDrMdDat = times->modtime + MAC_UNIX_EPOCH_DIFF; | |
501 | else | |
502 | GetDateTime (&cipb.dirInfo.ioDrMdDat); | |
503 | } | |
504 | else | |
505 | { | |
506 | if (times) | |
507 | cipb.hFileInfo.ioFlMdDat = times->modtime + MAC_UNIX_EPOCH_DIFF; | |
508 | else | |
509 | GetDateTime (&cipb.hFileInfo.ioFlMdDat); | |
510 | } | |
511 | ||
512 | errno = PBSetCatInfo (&cipb, false); | |
513 | return errno == noErr ? 0 : -1; | |
514 | } | |
515 | ||
516 | ||
517 | #ifndef F_OK | |
518 | #define F_OK 0 | |
519 | #endif | |
520 | #ifndef X_OK | |
521 | #define X_OK 1 | |
522 | #endif | |
523 | #ifndef W_OK | |
524 | #define W_OK 2 | |
525 | #endif | |
526 | ||
527 | /* Like stat, but test for access mode in hfpb.ioFlAttrib */ | |
528 | int | |
529 | access (const char *path, int mode) | |
530 | { | |
531 | char true_pathname[MAXPATHLEN+1], fully_resolved_name[MAXPATHLEN+1]; | |
532 | int len; | |
533 | char mac_pathname[MAXPATHLEN+1]; | |
534 | CInfoPBRec cipb; | |
535 | ||
536 | if (find_true_pathname (path, true_pathname, MAXPATHLEN+1) == -1) | |
537 | return -1; | |
538 | ||
539 | len = readlink (true_pathname, fully_resolved_name, MAXPATHLEN); | |
540 | if (len > -1) | |
541 | fully_resolved_name[len] = '\0'; | |
542 | else | |
543 | strcpy (fully_resolved_name, true_pathname); | |
544 | ||
545 | if (!unix_to_mac_pathname (fully_resolved_name, mac_pathname, MAXPATHLEN+1)) | |
546 | return -1; | |
547 | ||
548 | c2pstr (mac_pathname); | |
549 | cipb.hFileInfo.ioNamePtr = mac_pathname; | |
550 | cipb.hFileInfo.ioVRefNum = 0; | |
551 | cipb.hFileInfo.ioDirID = 0; | |
552 | cipb.hFileInfo.ioFDirIndex = 0; | |
553 | /* set to 0 to get information about specific dir or file */ | |
554 | ||
555 | errno = PBGetCatInfo (&cipb, false); | |
556 | if (errno != noErr) | |
557 | return -1; | |
558 | ||
559 | if (mode == F_OK) /* got this far, file exists */ | |
560 | return 0; | |
561 | ||
562 | if (mode & X_OK) | |
563 | if (cipb.hFileInfo.ioFlAttrib & 0x10) /* path refers to a directory */ | |
564 | return 0; | |
565 | else | |
566 | { | |
567 | if (cipb.hFileInfo.ioFlFndrInfo.fdType == 'APPL') | |
568 | return 0; | |
569 | else | |
570 | return -1; | |
571 | } | |
572 | ||
573 | if (mode & W_OK) | |
574 | return (cipb.hFileInfo.ioFlAttrib & 0x1) ? -1 : 0; | |
575 | /* don't allow if lock bit is on */ | |
576 | ||
577 | return -1; | |
578 | } | |
579 | ||
580 | ||
581 | #define DEV_NULL_FD 0x10000 | |
582 | ||
583 | #undef open | |
584 | int | |
585 | sys_open (const char *path, int oflag) | |
586 | { | |
587 | char true_pathname[MAXPATHLEN+1], fully_resolved_name[MAXPATHLEN+1]; | |
588 | int len; | |
589 | char mac_pathname[MAXPATHLEN+1]; | |
590 | ||
591 | if (strcmp (path, "/dev/null") == 0) | |
592 | return DEV_NULL_FD; /* some bogus fd to be ignored in write */ | |
593 | ||
594 | if (find_true_pathname (path, true_pathname, MAXPATHLEN+1) == -1) | |
595 | return -1; | |
596 | ||
597 | len = readlink (true_pathname, fully_resolved_name, MAXPATHLEN); | |
598 | if (len > -1) | |
599 | fully_resolved_name[len] = '\0'; | |
600 | else | |
601 | strcpy (fully_resolved_name, true_pathname); | |
602 | ||
603 | if (!unix_to_mac_pathname (fully_resolved_name, mac_pathname, MAXPATHLEN+1)) | |
604 | return -1; | |
605 | else | |
606 | { | |
607 | #ifdef __MRC__ | |
608 | if (oflag == O_WRONLY || oflag == O_RDWR) | |
609 | fsetfileinfo (mac_pathname, 'EMAx', 'TEXT'); | |
610 | #endif | |
611 | return open (mac_pathname, oflag); | |
612 | } | |
613 | } | |
614 | ||
615 | ||
616 | #undef creat | |
617 | int | |
618 | sys_creat (const char *path, mode_t mode) | |
619 | { | |
620 | char true_pathname[MAXPATHLEN+1]; | |
621 | int len; | |
622 | char mac_pathname[MAXPATHLEN+1]; | |
623 | ||
624 | if (find_true_pathname (path, true_pathname, MAXPATHLEN+1) == -1) | |
625 | return -1; | |
626 | ||
627 | if (!unix_to_mac_pathname (true_pathname, mac_pathname, MAXPATHLEN+1)) | |
628 | return -1; | |
629 | else | |
630 | { | |
631 | #ifdef __MRC__ | |
632 | int result = creat (mac_pathname); | |
633 | fsetfileinfo (mac_pathname, 'EMAx', 'TEXT'); | |
634 | return result; | |
635 | #else | |
636 | return creat (mac_pathname, mode); | |
637 | #endif | |
638 | } | |
639 | } | |
640 | ||
641 | ||
642 | #undef unlink | |
643 | int | |
644 | sys_unlink (const char *path) | |
645 | { | |
646 | char true_pathname[MAXPATHLEN+1], fully_resolved_name[MAXPATHLEN+1]; | |
647 | int len; | |
648 | char mac_pathname[MAXPATHLEN+1]; | |
649 | ||
650 | if (find_true_pathname (path, true_pathname, MAXPATHLEN+1) == -1) | |
651 | return -1; | |
652 | ||
653 | len = readlink (true_pathname, fully_resolved_name, MAXPATHLEN); | |
654 | if (len > -1) | |
655 | fully_resolved_name[len] = '\0'; | |
656 | else | |
657 | strcpy (fully_resolved_name, true_pathname); | |
658 | ||
659 | if (!unix_to_mac_pathname (fully_resolved_name, mac_pathname, MAXPATHLEN+1)) | |
660 | return -1; | |
661 | else | |
662 | return unlink (mac_pathname); | |
663 | } | |
664 | ||
665 | ||
666 | #undef read | |
667 | int | |
668 | sys_read (int fildes, char *buf, int count) | |
669 | { | |
670 | if (fildes == 0) /* this should not be used for console input */ | |
671 | return -1; | |
672 | else | |
673 | #ifdef CODEWARRIOR_VERSION_6 | |
674 | return _read (fildes, buf, count); | |
675 | #else | |
676 | return read (fildes, buf, count); | |
677 | #endif | |
678 | } | |
679 | ||
680 | ||
681 | #undef write | |
682 | int | |
683 | sys_write (int fildes, const char *buf, int count) | |
684 | { | |
685 | if (fildes == DEV_NULL_FD) | |
686 | return count; | |
687 | else | |
688 | #ifdef CODEWARRIOR_VERSION_6 | |
689 | return _write (fildes, buf, count); | |
690 | #else | |
691 | return write (fildes, buf, count); | |
692 | #endif | |
693 | } | |
694 | ||
695 | ||
696 | #undef rename | |
697 | int | |
698 | sys_rename (const char * old_name, const char * new_name) | |
699 | { | |
700 | char true_old_pathname[MAXPATHLEN+1], true_new_pathname[MAXPATHLEN+1]; | |
701 | char fully_resolved_old_name[MAXPATHLEN+1]; | |
702 | int len; | |
703 | char mac_old_name[MAXPATHLEN+1], mac_new_name[MAXPATHLEN+1]; | |
704 | ||
705 | if (find_true_pathname (old_name, true_old_pathname, MAXPATHLEN+1) == -1) | |
706 | return -1; | |
707 | ||
708 | len = readlink (true_old_pathname, fully_resolved_old_name, MAXPATHLEN); | |
709 | if (len > -1) | |
710 | fully_resolved_old_name[len] = '\0'; | |
711 | else | |
712 | strcpy (fully_resolved_old_name, true_old_pathname); | |
713 | ||
714 | if (find_true_pathname (new_name, true_new_pathname, MAXPATHLEN+1) == -1) | |
715 | return -1; | |
716 | ||
717 | if (strcmp (fully_resolved_old_name, true_new_pathname) == 0) | |
718 | return 0; | |
719 | ||
720 | if (!unix_to_mac_pathname (fully_resolved_old_name, | |
721 | mac_old_name, | |
722 | MAXPATHLEN+1)) | |
723 | return -1; | |
724 | ||
725 | if (!unix_to_mac_pathname(true_new_pathname, mac_new_name, MAXPATHLEN+1)) | |
726 | return -1; | |
727 | ||
728 | /* If a file with new_name already exists, rename deletes the old | |
729 | file in Unix. CW version fails in these situation. So we add a | |
730 | call to unlink here. */ | |
731 | (void) unlink (mac_new_name); | |
732 | ||
733 | return rename (mac_old_name, mac_new_name); | |
734 | } | |
735 | ||
736 | ||
737 | #undef fopen | |
738 | extern FILE *fopen (const char *name, const char *mode); | |
739 | FILE * | |
740 | sys_fopen (const char *name, const char *mode) | |
741 | { | |
742 | char true_pathname[MAXPATHLEN+1], fully_resolved_name[MAXPATHLEN+1]; | |
743 | int len; | |
744 | char mac_pathname[MAXPATHLEN+1]; | |
745 | ||
746 | if (find_true_pathname (name, true_pathname, MAXPATHLEN+1) == -1) | |
747 | return 0; | |
748 | ||
749 | len = readlink (true_pathname, fully_resolved_name, MAXPATHLEN); | |
750 | if (len > -1) | |
751 | fully_resolved_name[len] = '\0'; | |
752 | else | |
753 | strcpy (fully_resolved_name, true_pathname); | |
754 | ||
755 | if (!unix_to_mac_pathname (fully_resolved_name, mac_pathname, MAXPATHLEN+1)) | |
756 | return 0; | |
757 | else | |
758 | { | |
759 | #ifdef __MRC__ | |
760 | if (mode[0] == 'w' || mode[0] == 'a') | |
761 | fsetfileinfo (mac_pathname, 'EMAx', 'TEXT'); | |
762 | #endif | |
763 | return fopen (mac_pathname, mode); | |
764 | } | |
765 | } | |
766 | ||
767 | ||
768 | #include <Events.h> | |
769 | ||
770 | long target_ticks = 0; | |
771 | ||
772 | #ifdef __MRC__ | |
773 | __sigfun alarm_signal_func = (__sigfun) 0; | |
774 | #elif __MWERKS__ | |
775 | __signal_func_ptr alarm_signal_func = (__signal_func_ptr) 0; | |
776 | #else | |
777 | You lose!!! | |
778 | #endif | |
779 | ||
780 | ||
781 | /* These functions simulate SIG_ALRM. The stub for function signal | |
782 | stores the signal handler function in alarm_signal_func if a | |
783 | SIG_ALRM is encountered. check_alarm is called in XTread_socket, | |
784 | which emacs calls periodically. A pending alarm is represented by | |
785 | a non-zero target_ticks value. check_alarm calls the handler | |
786 | function pointed to by alarm_signal_func if one has been set up and | |
787 | an alarm is pending. */ | |
788 | ||
789 | void | |
790 | check_alarm () | |
791 | { | |
792 | if (target_ticks && TickCount () > target_ticks) | |
793 | { | |
794 | target_ticks = 0; | |
795 | if (alarm_signal_func) | |
796 | (*alarm_signal_func)(SIGALRM); | |
797 | } | |
798 | } | |
799 | ||
800 | ||
801 | int | |
802 | select(n, rfds, wfds, efds, timeout) | |
803 | int n; | |
804 | SELECT_TYPE *rfds; | |
805 | SELECT_TYPE *wfds; | |
806 | SELECT_TYPE *efds; | |
807 | struct timeval *timeout; | |
808 | { | |
809 | EMACS_TIME end_time, now; | |
810 | EventRecord e; | |
1a578e9b AC |
811 | |
812 | /* Can only handle wait for keyboard input. */ | |
813 | if (n > 1 || wfds || efds) | |
814 | return -1; | |
815 | ||
816 | EMACS_GET_TIME (end_time); | |
817 | EMACS_ADD_TIME (end_time, end_time, *timeout); | |
818 | ||
819 | do | |
820 | { | |
821 | /* Also return true if an event other than a keyDown has | |
822 | occurred. This causes kbd_buffer_get_event in keyboard.c to | |
823 | call read_avail_input which in turn calls XTread_socket to | |
824 | poll for these events. Otherwise these never get processed | |
825 | except but a very slow poll timer. */ | |
826 | if (FD_ISSET (0, rfds) && EventAvail (everyEvent, &e)) | |
827 | return 1; | |
828 | ||
829 | /* Also check movement of the mouse. */ | |
830 | { | |
831 | Point mouse_pos; | |
832 | static Point old_mouse_pos = {-1, -1}; | |
833 | ||
834 | GetMouse (&mouse_pos); | |
835 | if (!EqualPt (mouse_pos, old_mouse_pos)) | |
836 | { | |
837 | old_mouse_pos = mouse_pos; | |
838 | return 1; | |
839 | } | |
840 | } | |
841 | ||
fa0b4c14 | 842 | WaitNextEvent (0, &e, 1UL, NULL); /* Accept no event; wait 1 tic. by T.I.*/ |
1a578e9b AC |
843 | |
844 | EMACS_GET_TIME (now); | |
845 | EMACS_SUB_TIME (now, end_time, now); | |
846 | } | |
847 | while (!EMACS_TIME_NEG_P (now)); | |
848 | ||
849 | return 0; | |
850 | } | |
851 | ||
852 | ||
853 | /* Called in sys_select to wait for an alarm signal to arrive. */ | |
854 | ||
855 | int | |
856 | pause () | |
857 | { | |
fa0b4c14 AC |
858 | EventRecord e; |
859 | unsigned long tick; | |
1a578e9b AC |
860 | |
861 | if (!target_ticks) /* no alarm pending */ | |
862 | return -1; | |
863 | ||
fa0b4c14 AC |
864 | if ( (tick = TickCount ()) < target_ticks ) |
865 | WaitNextEvent (0, &e, target_ticks - tick, NULL); /* Accept no event; just wait. by T.I.*/ | |
1a578e9b AC |
866 | |
867 | target_ticks = 0; | |
868 | if (alarm_signal_func) | |
869 | (*alarm_signal_func)(SIGALRM); | |
870 | ||
871 | return 0; | |
872 | } | |
873 | ||
874 | ||
875 | int | |
876 | alarm (int seconds) | |
877 | { | |
878 | long remaining = target_ticks ? (TickCount () - target_ticks) / 60 : 0; | |
879 | ||
880 | target_ticks = seconds ? TickCount () + 60 * seconds : 0; | |
881 | ||
882 | return (remaining < 0) ? 0 : (unsigned int) remaining; | |
883 | } | |
884 | ||
885 | ||
886 | #undef signal | |
887 | #ifdef __MRC__ | |
888 | extern __sigfun signal (int signal, __sigfun signal_func); | |
889 | __sigfun | |
890 | sys_signal (int signal_num, __sigfun signal_func) | |
891 | #elif __MWERKS__ | |
892 | extern __signal_func_ptr signal (int signal, __signal_func_ptr signal_func); | |
893 | __signal_func_ptr | |
894 | sys_signal (int signal_num, __signal_func_ptr signal_func) | |
895 | #else | |
896 | You lose!!! | |
897 | #endif | |
898 | { | |
899 | if (signal_num != SIGALRM) | |
900 | return signal (signal_num, signal_func); | |
901 | else | |
902 | { | |
903 | #ifdef __MRC__ | |
904 | __sigfun old_signal_func; | |
905 | #elif __MWERKS__ | |
906 | __signal_func_ptr old_signal_func; | |
907 | #else | |
908 | You lose!!! | |
909 | #endif | |
910 | old_signal_func = alarm_signal_func; | |
911 | alarm_signal_func = signal_func; | |
912 | return old_signal_func; | |
913 | } | |
914 | } | |
915 | ||
916 | ||
917 | /* gettimeofday should return the amount of time (in a timeval | |
918 | structure) since midnight today. The toolbox function Microseconds | |
919 | returns the number of microseconds (in a UnsignedWide value) since | |
920 | the machine was booted. Also making this complicated is WideAdd, | |
921 | WideSubtract, etc. take wide values. */ | |
922 | ||
923 | int | |
924 | gettimeofday (tp) | |
925 | struct timeval *tp; | |
926 | { | |
927 | static inited = 0; | |
928 | static wide wall_clock_at_epoch, clicks_at_epoch; | |
929 | UnsignedWide uw_microseconds; | |
930 | wide w_microseconds; | |
931 | time_t sys_time (time_t *); | |
932 | ||
933 | /* If this function is called for the first time, record the number | |
934 | of seconds since midnight and the number of microseconds since | |
935 | boot at the time of this first call. */ | |
936 | if (!inited) | |
937 | { | |
938 | time_t systime; | |
939 | inited = 1; | |
940 | systime = sys_time (NULL); | |
941 | /* Store microseconds since midnight in wall_clock_at_epoch. */ | |
942 | WideMultiply (systime, 1000000L, &wall_clock_at_epoch); | |
943 | Microseconds (&uw_microseconds); | |
944 | /* Store microseconds since boot in clicks_at_epoch. */ | |
945 | clicks_at_epoch.hi = uw_microseconds.hi; | |
946 | clicks_at_epoch.lo = uw_microseconds.lo; | |
947 | } | |
948 | ||
949 | /* Get time since boot */ | |
950 | Microseconds (&uw_microseconds); | |
951 | ||
952 | /* Convert to time since midnight*/ | |
953 | w_microseconds.hi = uw_microseconds.hi; | |
954 | w_microseconds.lo = uw_microseconds.lo; | |
955 | WideSubtract (&w_microseconds, &clicks_at_epoch); | |
956 | WideAdd (&w_microseconds, &wall_clock_at_epoch); | |
957 | tp->tv_sec = WideDivide (&w_microseconds, 1000000L, &tp->tv_usec); | |
958 | ||
959 | return 0; | |
960 | } | |
961 | ||
962 | ||
963 | #ifdef __MRC__ | |
964 | unsigned int | |
965 | sleep (unsigned int seconds) | |
966 | { | |
fa0b4c14 AC |
967 | EventRecord e; |
968 | ||
969 | WaitNextEvent (0, &e, seconds * 60UL, NULL); /* Accept no event; just wait. by T.I.*/ | |
1a578e9b | 970 | |
1a578e9b AC |
971 | return (0); |
972 | } | |
973 | #endif /* __MRC__ */ | |
974 | ||
975 | ||
976 | /* The time functions adjust time values according to the difference | |
977 | between the Unix and CW epoches. */ | |
978 | ||
979 | #undef gmtime | |
980 | extern struct tm *gmtime (const time_t *); | |
981 | struct tm * | |
982 | sys_gmtime (const time_t *timer) | |
983 | { | |
984 | time_t unix_time = *timer + CW_OR_MPW_UNIX_EPOCH_DIFF; | |
985 | ||
986 | return gmtime (&unix_time); | |
987 | } | |
988 | ||
989 | ||
990 | #undef localtime | |
991 | extern struct tm *localtime (const time_t *); | |
992 | struct tm * | |
993 | sys_localtime (const time_t *timer) | |
994 | { | |
995 | #ifdef CODEWARRIOR_VERSION_6 | |
996 | time_t unix_time = *timer; | |
997 | #else | |
998 | time_t unix_time = *timer + CW_OR_MPW_UNIX_EPOCH_DIFF; | |
999 | #endif | |
1000 | ||
1001 | return localtime (&unix_time); | |
1002 | } | |
1003 | ||
1004 | ||
1005 | #undef ctime | |
1006 | extern char *ctime (const time_t *); | |
1007 | char * | |
1008 | sys_ctime (const time_t *timer) | |
1009 | { | |
1010 | #ifdef CODEWARRIOR_VERSION_6 | |
1011 | time_t unix_time = *timer; | |
1012 | #else | |
1013 | time_t unix_time = *timer + CW_OR_MPW_UNIX_EPOCH_DIFF; | |
1014 | #endif | |
1015 | ||
1016 | return ctime (&unix_time); | |
1017 | } | |
1018 | ||
1019 | ||
1020 | #undef time | |
1021 | extern time_t time (time_t *); | |
1022 | time_t | |
1023 | sys_time (time_t *timer) | |
1024 | { | |
1025 | #ifdef CODEWARRIOR_VERSION_6 | |
1026 | time_t mac_time = time (NULL); | |
1027 | #else | |
1028 | time_t mac_time = time (NULL) - CW_OR_MPW_UNIX_EPOCH_DIFF; | |
1029 | #endif | |
1030 | ||
1031 | if (timer) | |
1032 | *timer = mac_time; | |
1033 | ||
1034 | return mac_time; | |
1035 | } | |
1036 | ||
1037 | ||
1038 | /* MPW strftime broken for "%p" format */ | |
1039 | #ifdef __MRC__ | |
1040 | #undef strftime | |
1041 | #include <time.h> | |
1042 | size_t | |
1043 | sys_strftime (char * s, size_t maxsize, const char * format, | |
1044 | const struct tm * timeptr) | |
1045 | { | |
1046 | if (strcmp (format, "%p") == 0) | |
1047 | { | |
1048 | if (maxsize < 3) | |
1049 | return 0; | |
1050 | if (timeptr->tm_hour < 12) | |
1051 | { | |
1052 | strcpy (s, "AM"); | |
1053 | return 2; | |
1054 | } | |
1055 | else | |
1056 | { | |
1057 | strcpy (s, "PM"); | |
1058 | return 2; | |
1059 | } | |
1060 | } | |
1061 | else | |
1062 | return strftime (s, maxsize, format, timeptr); | |
1063 | } | |
1064 | #endif /* __MRC__ */ | |
1065 | ||
1066 | ||
1067 | /* no subprocesses, empty wait */ | |
1068 | ||
1069 | int | |
1070 | wait (int pid) | |
1071 | { | |
1072 | return 0; | |
1073 | } | |
1074 | ||
1075 | ||
1076 | void | |
1077 | croak (char *badfunc) | |
1078 | { | |
1079 | printf ("%s not yet implemented\r\n", badfunc); | |
1080 | exit (1); | |
1081 | } | |
1082 | ||
1083 | ||
1084 | char * | |
1085 | index (const char * str, int chr) | |
1086 | { | |
1087 | return strchr (str, chr); | |
1088 | } | |
1089 | ||
1090 | ||
1091 | char * | |
1092 | mktemp (char *template) | |
1093 | { | |
1094 | int len, k; | |
1095 | static seqnum = 0; | |
1096 | ||
1097 | len = strlen (template); | |
1098 | k = len - 1; | |
1099 | while (k >= 0 && template[k] == 'X') | |
1100 | k--; | |
1101 | ||
1102 | k++; /* make k index of first 'X' */ | |
1103 | ||
1104 | if (k < len) | |
1105 | { | |
1106 | /* Zero filled, number of digits equal to the number of X's. */ | |
1107 | sprintf (&template[k], "%0*d", len-k, seqnum++); | |
1108 | ||
1109 | return template; | |
1110 | } | |
1111 | else | |
1112 | return 0; | |
1113 | } | |
1114 | ||
1115 | ||
1116 | /* Emulate getpwuid, getpwnam and others. */ | |
1117 | ||
1118 | #define PASSWD_FIELD_SIZE 256 | |
1119 | ||
1120 | static char my_passwd_name[PASSWD_FIELD_SIZE]; | |
1121 | static char my_passwd_dir[MAXPATHLEN+1]; | |
1122 | ||
1123 | static struct passwd my_passwd = | |
1124 | { | |
1125 | my_passwd_name, | |
1126 | my_passwd_dir, | |
1127 | }; | |
1128 | ||
1129 | ||
1130 | /* Initialized by main () in macterm.c to pathname of emacs directory. */ | |
1131 | ||
1132 | char emacs_passwd_dir[MAXPATHLEN+1]; | |
1133 | ||
1134 | char * | |
1135 | getwd (char *); | |
1136 | ||
1137 | void | |
1138 | init_emacs_passwd_dir () | |
1139 | { | |
1140 | int found = false; | |
1141 | ||
1142 | if (getwd (emacs_passwd_dir) && getwd (my_passwd_dir)) | |
1143 | { | |
1144 | /* Need pathname of first ancestor that begins with "emacs" | |
1145 | since Mac emacs application is somewhere in the emacs-* | |
1146 | tree. */ | |
1147 | int len = strlen (emacs_passwd_dir); | |
1148 | int j = len - 1; | |
1149 | /* j points to the "/" following the directory name being | |
1150 | compared. */ | |
1151 | int i = j - 1; | |
1152 | while (i >= 0 && !found) | |
1153 | { | |
1154 | while (i >= 0 && emacs_passwd_dir[i] != '/') | |
1155 | i--; | |
1156 | if (emacs_passwd_dir[i] == '/' && i+5 < len) | |
1157 | found = (strncmp (&(emacs_passwd_dir[i+1]), "emacs", 5) == 0); | |
1158 | if (found) | |
1159 | emacs_passwd_dir[j+1] = '\0'; | |
1160 | else | |
1161 | { | |
1162 | j = i; | |
1163 | i = j - 1; | |
1164 | } | |
1165 | } | |
1166 | } | |
1167 | ||
1168 | if (!found) | |
1169 | { | |
1170 | /* Setting to "/" probably won't work but set it to something | |
1171 | anyway. */ | |
1172 | strcpy (emacs_passwd_dir, "/"); | |
1173 | strcpy (my_passwd_dir, "/"); | |
1174 | } | |
1175 | } | |
1176 | ||
1177 | ||
1178 | static struct passwd emacs_passwd = | |
1179 | { | |
1180 | "emacs", | |
1181 | emacs_passwd_dir, | |
1182 | }; | |
1183 | ||
1184 | static int my_passwd_inited = 0; | |
1185 | ||
1186 | ||
1187 | static void | |
1188 | init_my_passwd () | |
1189 | { | |
1190 | char **owner_name; | |
1191 | ||
1192 | /* Note: my_passwd_dir initialized in int_emacs_passwd_dir to | |
1193 | directory where Emacs was started. */ | |
1194 | ||
1195 | owner_name = (char **) GetResource ('STR ',-16096); | |
1196 | if (owner_name) | |
1197 | { | |
1198 | HLock (owner_name); | |
1199 | BlockMove ((unsigned char *) *owner_name, | |
1200 | (unsigned char *) my_passwd_name, | |
1201 | *owner_name[0]+1); | |
1202 | HUnlock (owner_name); | |
1203 | p2cstr ((unsigned char *) my_passwd_name); | |
1204 | } | |
1205 | else | |
1206 | my_passwd_name[0] = 0; | |
1207 | } | |
1208 | ||
1209 | ||
1210 | struct passwd * | |
1211 | getpwuid (uid_t uid) | |
1212 | { | |
1213 | if (!my_passwd_inited) | |
1214 | { | |
1215 | init_my_passwd (); | |
1216 | my_passwd_inited = 1; | |
1217 | } | |
1218 | ||
1219 | return &my_passwd; | |
1220 | } | |
1221 | ||
1222 | ||
1223 | struct passwd * | |
1224 | getpwnam (const char *name) | |
1225 | { | |
1226 | if (strcmp (name, "emacs") == 0) | |
1227 | return &emacs_passwd; | |
1228 | ||
1229 | if (!my_passwd_inited) | |
1230 | { | |
1231 | init_my_passwd (); | |
1232 | my_passwd_inited = 1; | |
1233 | } | |
1234 | ||
1235 | return &my_passwd; | |
1236 | } | |
1237 | ||
1238 | ||
1239 | /* The functions fork, kill, sigsetmask, sigblock, request_sigio, | |
1240 | setpgrp, setpriority, and unrequest_sigio are defined to be empty | |
1241 | as in msdos.c. */ | |
1242 | ||
1243 | ||
1244 | int | |
1245 | fork () | |
1246 | { | |
1247 | return -1; | |
1248 | } | |
1249 | ||
1250 | ||
1251 | int | |
1252 | kill (int x, int y) | |
1253 | { | |
1254 | return -1; | |
1255 | } | |
1256 | ||
1257 | ||
1258 | void | |
1259 | sys_subshell () | |
1260 | { | |
1261 | error ("Can't spawn subshell"); | |
1262 | } | |
1263 | ||
1264 | ||
1265 | int | |
1266 | sigsetmask (int x) | |
1267 | { | |
1268 | return 0; | |
1269 | } | |
1270 | ||
1271 | ||
1272 | int | |
1273 | sigblock (int mask) | |
1274 | { | |
1275 | return 0; | |
1276 | } | |
1277 | ||
1278 | ||
1279 | void | |
1280 | request_sigio (void) | |
1281 | { | |
1282 | } | |
1283 | ||
1284 | ||
1285 | void | |
1286 | unrequest_sigio (void) | |
1287 | { | |
1288 | } | |
1289 | ||
1290 | ||
1291 | int | |
1292 | setpgrp () | |
1293 | { | |
1294 | return 0; | |
1295 | } | |
1296 | ||
1297 | ||
1298 | /* No pipes yet. */ | |
1299 | ||
1300 | int | |
1301 | pipe (int _fildes[2]) | |
1302 | { | |
1303 | errno = EACCES; | |
1304 | return -1; | |
1305 | } | |
1306 | ||
1307 | ||
1308 | /* Hard and symbolic links. */ | |
1309 | ||
1310 | int | |
1311 | symlink (const char *name1, const char *name2) | |
1312 | { | |
1313 | errno = ENOENT; | |
1314 | return -1; | |
1315 | } | |
1316 | ||
1317 | ||
1318 | int | |
1319 | link (const char *name1, const char *name2) | |
1320 | { | |
1321 | errno = ENOENT; | |
1322 | return -1; | |
1323 | } | |
1324 | ||
1325 | ||
1326 | /* Determine the path name of the file specified by VREFNUM, DIRID, | |
1327 | and NAME and place that in the buffer PATH of length | |
1328 | MAXPATHLEN. */ | |
1329 | int | |
1330 | path_from_vol_dir_name (char *path, int man_path_len, short vol_ref_num, | |
1331 | long dir_id, ConstStr255Param name) | |
1332 | { | |
1333 | Str255 dir_name; | |
1334 | CInfoPBRec cipb; | |
1335 | OSErr err; | |
1336 | ||
1337 | if (strlen (name) > man_path_len) | |
1338 | return 0; | |
1339 | ||
1340 | memcpy (dir_name, name, name[0]+1); | |
1341 | memcpy (path, name, name[0]+1); | |
1342 | p2cstr (path); | |
1343 | ||
1344 | cipb.dirInfo.ioDrParID = dir_id; | |
1345 | cipb.dirInfo.ioNamePtr = dir_name; | |
1346 | ||
1347 | do | |
1348 | { | |
1349 | cipb.dirInfo.ioVRefNum = vol_ref_num; | |
1350 | cipb.dirInfo.ioFDirIndex = -1; | |
1351 | cipb.dirInfo.ioDrDirID = cipb.dirInfo.ioDrParID; | |
1352 | /* go up to parent each time */ | |
1353 | ||
1354 | err = PBGetCatInfo (&cipb, false); | |
1355 | if (err != noErr) | |
1356 | return 0; | |
1357 | ||
1358 | p2cstr (dir_name); | |
1359 | if (strlen (dir_name) + strlen (path) + 1 >= man_path_len) | |
1360 | return 0; | |
1361 | ||
1362 | strcat (dir_name, ":"); | |
1363 | strcat (dir_name, path); | |
1364 | /* attach to front since we're going up directory tree */ | |
1365 | strcpy (path, dir_name); | |
1366 | } | |
1367 | while (cipb.dirInfo.ioDrDirID != fsRtDirID); | |
1368 | /* stop when we see the volume's root directory */ | |
1369 | ||
1370 | return 1; /* success */ | |
1371 | } | |
1372 | ||
1373 | ||
1374 | int | |
1375 | readlink (const char *path, char *buf, int bufsiz) | |
1376 | { | |
1377 | char mac_sym_link_name[MAXPATHLEN+1]; | |
1378 | OSErr err; | |
1379 | FSSpec fsspec; | |
1380 | Boolean target_is_folder, was_aliased; | |
1381 | Str255 directory_name, mac_pathname; | |
1382 | CInfoPBRec cipb; | |
1383 | ||
1384 | if (unix_to_mac_pathname (path, mac_sym_link_name, MAXPATHLEN+1) == 0) | |
1385 | return -1; | |
1386 | ||
1387 | c2pstr (mac_sym_link_name); | |
1388 | err = FSMakeFSSpec (0, 0, mac_sym_link_name, &fsspec); | |
1389 | if (err != noErr) | |
1390 | { | |
1391 | errno = ENOENT; | |
1392 | return -1; | |
1393 | } | |
1394 | ||
1395 | err = ResolveAliasFile (&fsspec, true, &target_is_folder, &was_aliased); | |
1396 | if (err != noErr || !was_aliased) | |
1397 | { | |
1398 | errno = ENOENT; | |
1399 | return -1; | |
1400 | } | |
1401 | ||
1402 | if (path_from_vol_dir_name (mac_pathname, 255, fsspec.vRefNum, fsspec.parID, | |
1403 | fsspec.name) == 0) | |
1404 | { | |
1405 | errno = ENOENT; | |
1406 | return -1; | |
1407 | } | |
1408 | ||
1409 | if (mac_to_unix_pathname (mac_pathname, buf, bufsiz) == 0) | |
1410 | { | |
1411 | errno = ENOENT; | |
1412 | return -1; | |
1413 | } | |
1414 | ||
1415 | return strlen (buf); | |
1416 | } | |
1417 | ||
1418 | ||
1419 | /* Convert a path to one with aliases fully expanded. */ | |
1420 | ||
1421 | static int | |
1422 | find_true_pathname (const char *path, char *buf, int bufsiz) | |
1423 | { | |
1424 | char *q, temp[MAXPATHLEN+1]; | |
1425 | const char *p; | |
1426 | int len; | |
1427 | ||
1428 | if (bufsiz <= 0 || path == 0 || path[0] == '\0') | |
1429 | return -1; | |
1430 | ||
1431 | buf[0] = '\0'; | |
1432 | ||
1433 | p = path; | |
1434 | if (*p == '/') | |
1435 | q = strchr (p + 1, '/'); | |
1436 | else | |
1437 | q = strchr (p, '/'); | |
1438 | len = 0; /* loop may not be entered, e.g., for "/" */ | |
1439 | ||
1440 | while (q) | |
1441 | { | |
1442 | strcpy (temp, buf); | |
1443 | strncat (temp, p, q - p); | |
1444 | len = readlink (temp, buf, bufsiz); | |
1445 | if (len <= -1) | |
1446 | { | |
1447 | if (strlen (temp) + 1 > bufsiz) | |
1448 | return -1; | |
1449 | strcpy (buf, temp); | |
1450 | } | |
1451 | strcat (buf, "/"); | |
1452 | len++; | |
1453 | p = q + 1; | |
1454 | q = strchr(p, '/'); | |
1455 | } | |
1456 | ||
1457 | if (len + strlen (p) + 1 >= bufsiz) | |
1458 | return -1; | |
1459 | ||
1460 | strcat (buf, p); | |
1461 | return len + strlen (p); | |
1462 | } | |
1463 | ||
1464 | ||
1465 | mode_t | |
1466 | umask (mode_t numask) | |
1467 | { | |
1468 | static mode_t mask = 022; | |
1469 | mode_t oldmask = mask; | |
1470 | mask = numask; | |
1471 | return oldmask; | |
1472 | } | |
1473 | ||
1474 | ||
1475 | int | |
1476 | chmod (const char *path, mode_t mode) | |
1477 | { | |
1478 | /* say it always succeed for now */ | |
1479 | return 0; | |
1480 | } | |
1481 | ||
1482 | ||
1483 | int | |
1484 | dup (int oldd) | |
1485 | { | |
1486 | #ifdef __MRC__ | |
1487 | return fcntl (oldd, F_DUPFD, 0); | |
1488 | #elif __MWERKS__ | |
1489 | /* current implementation of fcntl in fcntl.mac.c simply returns old | |
1490 | descriptor */ | |
1491 | return fcntl (oldd, F_DUPFD); | |
1492 | #else | |
1493 | You lose!!! | |
1494 | #endif | |
1495 | } | |
1496 | ||
1497 | ||
1498 | /* This is from the original sysdep.c. Emulate BSD dup2. First close | |
1499 | newd if it already exists. Then, attempt to dup oldd. If not | |
1500 | successful, call dup2 recursively until we are, then close the | |
1501 | unsuccessful ones. */ | |
1502 | ||
1503 | int | |
1504 | dup2 (int oldd, int newd) | |
1505 | { | |
1506 | int fd, ret; | |
1507 | ||
1508 | close (newd); | |
1509 | ||
1510 | fd = dup (oldd); | |
1511 | if (fd == -1) | |
1512 | return -1; | |
1513 | if (fd == newd) | |
1514 | return newd; | |
1515 | ret = dup2 (oldd, newd); | |
1516 | close (fd); | |
1517 | return ret; | |
1518 | } | |
1519 | ||
1520 | ||
1521 | /* let it fail for now */ | |
1522 | ||
1523 | char * | |
1524 | sbrk (int incr) | |
1525 | { | |
1526 | return (char *) -1; | |
1527 | } | |
1528 | ||
1529 | ||
1530 | int | |
1531 | fsync (int fd) | |
1532 | { | |
1533 | return 0; | |
1534 | } | |
1535 | ||
1536 | ||
1537 | int | |
1538 | ioctl (int d, int request, void *argp) | |
1539 | { | |
1540 | return -1; | |
1541 | } | |
1542 | ||
1543 | ||
1544 | #ifdef __MRC__ | |
1545 | int | |
1546 | isatty (int fildes) | |
1547 | { | |
1548 | if (fildes >=0 && fildes <= 2) | |
1549 | return 1; | |
1550 | else | |
1551 | return 0; | |
1552 | } | |
1553 | ||
1554 | ||
1555 | int | |
1556 | getgid () | |
1557 | { | |
1558 | return 100; | |
1559 | } | |
1560 | ||
1561 | ||
1562 | int | |
1563 | getegid () | |
1564 | { | |
1565 | return 100; | |
1566 | } | |
1567 | ||
1568 | ||
1569 | int | |
1570 | getuid () | |
1571 | { | |
1572 | return 200; | |
1573 | } | |
1574 | ||
1575 | ||
1576 | int | |
1577 | geteuid () | |
1578 | { | |
1579 | return 200; | |
1580 | } | |
1581 | #endif /* __MRC__ */ | |
1582 | ||
1583 | ||
1584 | #ifdef __MWERKS__ | |
1585 | #ifndef CODEWARRIOR_VERSION_6 | |
1586 | #undef getpid | |
1587 | int | |
1588 | getpid () | |
1589 | { | |
1590 | return 9999; | |
1591 | } | |
1592 | #endif | |
1593 | #endif /* __MWERKS__ */ | |
1594 | ||
1595 | ||
1596 | /* Return the path to the directory in which Emacs can create | |
1597 | temporary files. The MacOS "temporary items" directory cannot be | |
1598 | used because it removes the file written by a process when it | |
1599 | exits. In that sense it's more like "/dev/null" than "/tmp" (but | |
1600 | again not exactly). And of course Emacs needs to read back the | |
1601 | files written by its subprocesses. So here we write the files to a | |
1602 | directory "Emacs" in the Preferences Folder. This directory is | |
1603 | created if it does not exist. */ | |
1604 | ||
1605 | static char * | |
1606 | get_temp_dir_name () | |
1607 | { | |
1608 | static char *temp_dir_name = NULL; | |
1609 | short vol_ref_num; | |
1610 | long dir_id; | |
1611 | OSErr err; | |
1612 | Str255 dir_name, full_path; | |
1613 | CInfoPBRec cpb; | |
1614 | char unix_dir_name[MAXPATHLEN+1]; | |
1615 | DIR *dir; | |
1616 | ||
1617 | /* Cache directory name with pointer temp_dir_name. | |
1618 | Look for it only the first time. */ | |
1619 | if (!temp_dir_name) | |
1620 | { | |
1621 | err = FindFolder (kOnSystemDisk, kPreferencesFolderType, kCreateFolder, | |
1622 | &vol_ref_num, &dir_id); | |
1623 | if (err != noErr) | |
1624 | return NULL; | |
1625 | ||
1626 | if (!path_from_vol_dir_name (full_path, 255, vol_ref_num, dir_id, "\p")) | |
1627 | return NULL; | |
1628 | ||
1629 | if (strlen (full_path) + 6 <= MAXPATHLEN) | |
1630 | strcat (full_path, "Emacs:"); | |
1631 | else | |
1632 | return NULL; | |
1633 | ||
1634 | if (!mac_to_unix_pathname (full_path, unix_dir_name, MAXPATHLEN+1)) | |
1635 | return NULL; | |
1636 | ||
1637 | dir = opendir (unix_dir_name); /* check whether temp directory exists */ | |
1638 | if (dir) | |
1639 | closedir (dir); | |
1640 | else if (mkdir (unix_dir_name, 0700) != 0) /* create it if not */ | |
1641 | return NULL; | |
1642 | ||
1643 | temp_dir_name = (char *) malloc (strlen (unix_dir_name) + 1); | |
1644 | strcpy (temp_dir_name, unix_dir_name); | |
1645 | } | |
1646 | ||
1647 | return temp_dir_name; | |
1648 | } | |
1649 | ||
1650 | ||
1651 | /* Allocate and construct an array of pointers to strings from a list | |
1652 | of strings stored in a 'STR#' resource. The returned pointer array | |
1653 | is stored in the style of argv and environ: if the 'STR#' resource | |
1654 | contains numString strings, an pointer array with numString+1 | |
1655 | elements is returned in which the last entry contains a null | |
1656 | pointer. The pointer to the pointer array is passed by pointer in | |
1657 | parameter t. The resource ID of the 'STR#' resource is passed in | |
1658 | parameter StringListID. | |
1659 | */ | |
1660 | ||
1661 | void | |
1662 | get_string_list (char ***t, short string_list_id) | |
1663 | { | |
1664 | Handle h; | |
1665 | Ptr p; | |
1666 | int i, num_strings; | |
1667 | ||
1668 | h = GetResource ('STR#', string_list_id); | |
1669 | if (h) | |
1670 | { | |
1671 | HLock (h); | |
1672 | p = *h; | |
1673 | num_strings = * (short *) p; | |
1674 | p += sizeof(short); | |
1675 | *t = (char **) malloc (sizeof (char *) * (num_strings + 1)); | |
1676 | for (i = 0; i < num_strings; i++) | |
1677 | { | |
1678 | short length = *p++; | |
1679 | (*t)[i] = (char *) malloc (length + 1); | |
1680 | strncpy ((*t)[i], p, length); | |
1681 | (*t)[i][length] = '\0'; | |
1682 | p += length; | |
1683 | } | |
1684 | (*t)[num_strings] = 0; | |
1685 | HUnlock (h); | |
1686 | } | |
1687 | else | |
1688 | { | |
1689 | /* Return no string in case GetResource fails. Bug fixed by | |
1690 | Ikegami Tsutomu. Caused MPW build to crash without sym -on | |
1691 | option (no sym -on implies -opt local). */ | |
1692 | *t = (char **) malloc (sizeof (char *)); | |
1693 | (*t)[0] = 0; | |
1694 | } | |
1695 | } | |
1696 | ||
1697 | ||
1698 | static char * | |
1699 | get_path_to_system_folder () | |
1700 | { | |
1701 | short vol_ref_num; | |
1702 | long dir_id; | |
1703 | OSErr err; | |
1704 | Str255 dir_name, full_path; | |
1705 | CInfoPBRec cpb; | |
1706 | static char system_folder_unix_name[MAXPATHLEN+1]; | |
1707 | DIR *dir; | |
1708 | ||
1709 | err = FindFolder (kOnSystemDisk, kSystemFolderType, kDontCreateFolder, | |
1710 | &vol_ref_num, &dir_id); | |
1711 | if (err != noErr) | |
1712 | return NULL; | |
1713 | ||
1714 | if (!path_from_vol_dir_name (full_path, 255, vol_ref_num, dir_id, "\p")) | |
1715 | return NULL; | |
1716 | ||
1717 | if (!mac_to_unix_pathname (full_path, system_folder_unix_name, MAXPATHLEN+1)) | |
1718 | return NULL; | |
1719 | ||
1720 | return system_folder_unix_name; | |
1721 | } | |
1722 | ||
1723 | ||
1724 | char **environ; | |
1725 | ||
1726 | #define ENVIRON_STRING_LIST_ID 128 | |
1727 | ||
1728 | /* Get environment variable definitions from STR# resource. */ | |
1729 | ||
1730 | void | |
1731 | init_environ () | |
1732 | { | |
1733 | int i; | |
1734 | ||
1735 | get_string_list (&environ, ENVIRON_STRING_LIST_ID); | |
1736 | ||
1737 | i = 0; | |
1738 | while (environ[i]) | |
1739 | i++; | |
1740 | ||
1741 | /* Make HOME directory the one Emacs starts up in if not specified | |
1742 | by resource. */ | |
1743 | if (getenv ("HOME") == NULL) | |
1744 | { | |
1745 | environ = (char **) realloc (environ, sizeof (char *) * (i + 2)); | |
1746 | if (environ) | |
1747 | { | |
1748 | environ[i] = (char *) malloc (strlen (my_passwd_dir) + 6); | |
1749 | if (environ[i]) | |
1750 | { | |
1751 | strcpy (environ[i], "HOME="); | |
1752 | strcat (environ[i], my_passwd_dir); | |
1753 | } | |
1754 | environ[i+1] = 0; | |
1755 | i++; | |
1756 | } | |
1757 | } | |
1758 | ||
1759 | /* Make HOME directory the one Emacs starts up in if not specified | |
1760 | by resource. */ | |
1761 | if (getenv ("MAIL") == NULL) | |
1762 | { | |
1763 | environ = (char **) realloc (environ, sizeof (char *) * (i + 2)); | |
1764 | if (environ) | |
1765 | { | |
1766 | char * path_to_system_folder = get_path_to_system_folder (); | |
1767 | environ[i] = (char *) malloc (strlen (path_to_system_folder) + 22); | |
1768 | if (environ[i]) | |
1769 | { | |
1770 | strcpy (environ[i], "MAIL="); | |
1771 | strcat (environ[i], path_to_system_folder); | |
1772 | strcat (environ[i], "Eudora Folder/In"); | |
1773 | } | |
1774 | environ[i+1] = 0; | |
1775 | } | |
1776 | } | |
1777 | } | |
1778 | ||
1779 | ||
1780 | /* Return the value of the environment variable NAME. */ | |
1781 | ||
1782 | char * | |
1783 | getenv (const char *name) | |
1784 | { | |
1785 | int length = strlen(name); | |
1786 | char **e; | |
1787 | ||
1788 | for (e = environ; *e != 0; e++) | |
1789 | if (strncmp(*e, name, length) == 0 && (*e)[length] == '=') | |
1790 | return &(*e)[length + 1]; | |
1791 | ||
1792 | if (strcmp (name, "TMPDIR") == 0) | |
1793 | return get_temp_dir_name (); | |
1794 | ||
1795 | return 0; | |
1796 | } | |
1797 | ||
1798 | ||
1799 | #ifdef __MRC__ | |
1800 | /* see Interfaces&Libraries:Interfaces:CIncludes:signal.h */ | |
1801 | char *sys_siglist[] = | |
1802 | { | |
1803 | "Zero is not a signal!!!", | |
1804 | "Abort", /* 1 */ | |
1805 | "Interactive user interrupt", /* 2 */ "?", | |
1806 | "Floating point exception", /* 4 */ "?", "?", "?", | |
1807 | "Illegal instruction", /* 8 */ "?", "?", "?", "?", "?", "?", "?", | |
1808 | "Segment violation", /* 16 */ "?", "?", "?", "?", "?", "?", "?", | |
1809 | "?", "?", "?", "?", "?", "?", "?", "?", | |
1810 | "Terminal" /* 32 */ | |
1811 | }; | |
1812 | #elif __MWERKS__ | |
1813 | char *sys_siglist[] = | |
1814 | { | |
1815 | "Zero is not a signal!!!", | |
1816 | "Abort", | |
1817 | "Floating point exception", | |
1818 | "Illegal instruction", | |
1819 | "Interactive user interrupt", | |
1820 | "Segment violation", | |
1821 | "Terminal" | |
1822 | }; | |
1823 | #else | |
1824 | You lose!!! | |
1825 | #endif | |
1826 | ||
1827 | ||
1828 | #include <utsname.h> | |
1829 | ||
1830 | int | |
1831 | uname (struct utsname *name) | |
1832 | { | |
1833 | char **system_name; | |
1834 | system_name = GetString (-16413); /* IM - Resource Manager Reference */ | |
1835 | if (system_name) | |
1836 | { | |
1837 | BlockMove (*system_name, name->nodename, (*system_name)[0]+1); | |
1838 | p2cstr (name->nodename); | |
1839 | return 0; | |
1840 | } | |
1841 | else | |
1842 | return -1; | |
1843 | } | |
1844 | ||
1845 | ||
1846 | #include <Processes.h> | |
1847 | #include <EPPC.h> | |
1848 | ||
1849 | /* Event class of HLE sent to subprocess. */ | |
1850 | const OSType kEmacsSubprocessSend = 'ESND'; | |
1851 | ||
1852 | /* Event class of HLE sent back from subprocess. */ | |
1853 | const OSType kEmacsSubprocessReply = 'ERPY'; | |
1854 | ||
1855 | ||
1856 | char * | |
1857 | mystrchr (char *s, char c) | |
1858 | { | |
1859 | while (*s && *s != c) | |
1860 | { | |
1861 | if (*s == '\\') | |
1862 | s++; | |
1863 | s++; | |
1864 | } | |
1865 | ||
1866 | if (*s) | |
1867 | { | |
1868 | *s = '\0'; | |
1869 | return s; | |
1870 | } | |
1871 | else | |
1872 | return NULL; | |
1873 | } | |
1874 | ||
1875 | ||
1876 | char * | |
1877 | mystrtok (char *s) | |
1878 | { | |
1879 | while (*s) | |
1880 | s++; | |
1881 | ||
1882 | return s + 1; | |
1883 | } | |
1884 | ||
1885 | ||
1886 | void | |
1887 | mystrcpy (char *to, char *from) | |
1888 | { | |
1889 | while (*from) | |
1890 | { | |
1891 | if (*from == '\\') | |
1892 | from++; | |
1893 | *to++ = *from++; | |
1894 | } | |
1895 | *to = '\0'; | |
1896 | } | |
1897 | ||
1898 | ||
1899 | /* Start a Mac subprocess. Arguments for it is passed in argv (null | |
1900 | terminated). The process should run with the default directory | |
1901 | "workdir", read input from "infn", and write output and error to | |
1902 | "outfn" and "errfn", resp. The Process Manager call | |
1903 | LaunchApplication is used to start the subprocess. We use high | |
1904 | level events as the mechanism to pass arguments to the subprocess | |
1905 | and to make Emacs wait for the subprocess to terminate and pass | |
1906 | back a result code. The bulk of the code here packs the arguments | |
1907 | into one message to be passed together with the high level event. | |
1908 | Emacs also sometimes starts a subprocess using a shell to perform | |
1909 | wildcard filename expansion. Since we don't really have a shell on | |
1910 | the Mac, this case is detected and the starting of the shell is | |
1911 | by-passed. We really need to add code here to do filename | |
1912 | expansion to support such functionality. */ | |
1913 | ||
1914 | int | |
1915 | run_mac_command (argv, workdir, infn, outfn, errfn) | |
1916 | unsigned char **argv; | |
1917 | const char *workdir; | |
1918 | const char *infn, *outfn, *errfn; | |
1919 | { | |
1920 | char macappname[MAXPATHLEN+1], macworkdir[MAXPATHLEN+1]; | |
1921 | char macinfn[MAXPATHLEN+1], macoutfn[MAXPATHLEN+1], macerrfn[MAXPATHLEN+1]; | |
1922 | int paramlen, argc, newargc, j, retries; | |
1923 | char **newargv, *param, *p; | |
1924 | OSErr iErr; | |
1925 | FSSpec spec; | |
1926 | LaunchParamBlockRec lpbr; | |
1927 | EventRecord send_event, reply_event; | |
1928 | RgnHandle cursor_region_handle; | |
1929 | TargetID targ; | |
1930 | unsigned long ref_con, len; | |
1931 | ||
1932 | if (unix_to_mac_pathname (workdir, macworkdir, MAXPATHLEN+1) == 0) | |
1933 | return -1; | |
1934 | if (unix_to_mac_pathname (infn, macinfn, MAXPATHLEN+1) == 0) | |
1935 | return -1; | |
1936 | if (unix_to_mac_pathname (outfn, macoutfn, MAXPATHLEN+1) == 0) | |
1937 | return -1; | |
1938 | if (unix_to_mac_pathname (errfn, macerrfn, MAXPATHLEN+1) == 0) | |
1939 | return -1; | |
1940 | ||
1941 | paramlen = strlen (macworkdir) + strlen (macinfn) + strlen (macoutfn) | |
1942 | + strlen (macerrfn) + 4; /* count nulls at end of strings */ | |
1943 | ||
1944 | argc = 0; | |
1945 | while (argv[argc]) | |
1946 | argc++; | |
1947 | ||
1948 | if (argc == 0) | |
1949 | return -1; | |
1950 | ||
1951 | /* If a subprocess is invoked with a shell, we receive 3 arguments | |
1952 | of the form: "<path to emacs bins>/sh" "-c" "<path to emacs | |
1953 | bins>/<command> <command args>" */ | |
1954 | j = strlen (argv[0]); | |
1955 | if (j >= 3 && strcmp (argv[0]+j-3, "/sh") == 0 | |
1956 | && argc == 3 && strcmp (argv[1], "-c") == 0) | |
1957 | { | |
1958 | char *command, *t, tempmacpathname[MAXPATHLEN+1]; | |
1959 | ||
1960 | /* The arguments for the command in argv[2] are separated by | |
1961 | spaces. Count them and put the count in newargc. */ | |
1962 | command = (char *) alloca (strlen (argv[2])+2); | |
1963 | strcpy (command, argv[2]); | |
1964 | if (command[strlen (command) - 1] != ' ') | |
1965 | strcat (command, " "); | |
1966 | ||
1967 | t = command; | |
1968 | newargc = 0; | |
1969 | t = mystrchr (t, ' '); | |
1970 | while (t) | |
1971 | { | |
1972 | newargc++; | |
1973 | t = mystrchr (t+1, ' '); | |
1974 | } | |
1975 | ||
1976 | newargv = (char **) alloca (sizeof (char *) * newargc); | |
1977 | ||
1978 | t = command; | |
1979 | for (j = 0; j < newargc; j++) | |
1980 | { | |
1981 | newargv[j] = (char *) alloca (strlen (t) + 1); | |
1982 | mystrcpy (newargv[j], t); | |
1983 | ||
1984 | t = mystrtok (t); | |
1985 | paramlen += strlen (newargv[j]) + 1; | |
1986 | } | |
1987 | ||
1988 | if (strncmp (newargv[0], "~emacs/", 7) == 0) | |
1989 | { | |
1990 | if (unix_to_mac_pathname (newargv[0], tempmacpathname, MAXPATHLEN+1) | |
1991 | == 0) | |
1992 | return -1; | |
1993 | } | |
1994 | else | |
1995 | { /* sometimes Emacs call "sh" without a path for the command */ | |
1996 | #if 0 | |
1997 | char *t = (char *) alloca (strlen (newargv[0]) + 7 + 1); | |
1998 | strcpy (t, "~emacs/"); | |
1999 | strcat (t, newargv[0]); | |
2000 | #endif | |
2001 | Lisp_Object path; | |
2002 | openp (Vexec_path, build_string (newargv[0]), EXEC_SUFFIXES, &path, | |
2003 | 1); | |
2004 | ||
2005 | if (NILP (path)) | |
2006 | return -1; | |
2007 | if (unix_to_mac_pathname (XSTRING (path)->data, tempmacpathname, | |
2008 | MAXPATHLEN+1) == 0) | |
2009 | return -1; | |
2010 | } | |
2011 | strcpy (macappname, tempmacpathname); | |
2012 | } | |
2013 | else | |
2014 | { | |
2015 | if (unix_to_mac_pathname (argv[0], macappname, MAXPATHLEN+1) == 0) | |
2016 | return -1; | |
2017 | ||
2018 | newargv = (char **) alloca (sizeof (char *) * argc); | |
2019 | newargc = argc; | |
2020 | for (j = 1; j < argc; j++) | |
2021 | { | |
2022 | if (strncmp (argv[j], "~emacs/", 7) == 0) | |
2023 | { | |
2024 | char *t = strchr (argv[j], ' '); | |
2025 | if (t) | |
2026 | { | |
2027 | char tempcmdname[MAXPATHLEN+1], tempmaccmdname[MAXPATHLEN+1]; | |
2028 | strncpy (tempcmdname, argv[j], t-argv[j]); | |
2029 | tempcmdname[t-argv[j]] = '\0'; | |
2030 | if (unix_to_mac_pathname (tempcmdname, tempmaccmdname, | |
2031 | MAXPATHLEN+1) == 0) | |
2032 | return -1; | |
2033 | newargv[j] = (char *) alloca (strlen (tempmaccmdname) | |
2034 | + strlen (t) + 1); | |
2035 | strcpy (newargv[j], tempmaccmdname); | |
2036 | strcat (newargv[j], t); | |
2037 | } | |
2038 | else | |
2039 | { | |
2040 | char tempmaccmdname[MAXPATHLEN+1]; | |
2041 | if (unix_to_mac_pathname (argv[j], tempmaccmdname, | |
2042 | MAXPATHLEN+1) == 0) | |
2043 | return -1; | |
2044 | newargv[j] = (char *) alloca (strlen (tempmaccmdname)+1); | |
2045 | strcpy (newargv[j], tempmaccmdname); | |
2046 | } | |
2047 | } | |
2048 | else | |
2049 | newargv[j] = argv[j]; | |
2050 | paramlen += strlen (newargv[j]) + 1; | |
2051 | } | |
2052 | } | |
2053 | ||
2054 | /* After expanding all the arguments, we now know the length of the | |
2055 | parameter block to be sent to the subprocess as a message | |
2056 | attached to the HLE. */ | |
2057 | param = (char *) malloc (paramlen + 1); | |
2058 | if (!param) | |
2059 | return -1; | |
2060 | ||
2061 | p = param; | |
2062 | *p++ = newargc; | |
2063 | /* first byte of message contains number of arguments for command */ | |
2064 | strcpy (p, macworkdir); | |
2065 | p += strlen (macworkdir); | |
2066 | *p++ = '\0'; | |
2067 | /* null terminate strings sent so it's possible to use strcpy over there */ | |
2068 | strcpy (p, macinfn); | |
2069 | p += strlen (macinfn); | |
2070 | *p++ = '\0'; | |
2071 | strcpy (p, macoutfn); | |
2072 | p += strlen (macoutfn); | |
2073 | *p++ = '\0'; | |
2074 | strcpy (p, macerrfn); | |
2075 | p += strlen (macerrfn); | |
2076 | *p++ = '\0'; | |
2077 | for (j = 1; j < newargc; j++) | |
2078 | { | |
2079 | strcpy (p, newargv[j]); | |
2080 | p += strlen (newargv[j]); | |
2081 | *p++ = '\0'; | |
2082 | } | |
2083 | ||
2084 | c2pstr (macappname); | |
2085 | ||
2086 | iErr = FSMakeFSSpec (0, 0, macappname, &spec); | |
2087 | ||
2088 | if (iErr != noErr) | |
2089 | { | |
2090 | free (param); | |
2091 | return -1; | |
2092 | } | |
2093 | ||
2094 | lpbr.launchBlockID = extendedBlock; | |
2095 | lpbr.launchEPBLength = extendedBlockLen; | |
2096 | lpbr.launchControlFlags = launchContinue + launchNoFileFlags; | |
2097 | lpbr.launchAppSpec = &spec; | |
2098 | lpbr.launchAppParameters = NULL; | |
2099 | ||
2100 | iErr = LaunchApplication (&lpbr); /* call the subprocess */ | |
2101 | if (iErr != noErr) | |
2102 | { | |
2103 | free (param); | |
2104 | return -1; | |
2105 | } | |
2106 | ||
2107 | send_event.what = kHighLevelEvent; | |
2108 | send_event.message = kEmacsSubprocessSend; | |
2109 | /* Event ID stored in "where" unused */ | |
2110 | ||
2111 | retries = 3; | |
2112 | /* OS may think current subprocess has terminated if previous one | |
2113 | terminated recently. */ | |
2114 | do | |
2115 | { | |
2116 | iErr = PostHighLevelEvent (&send_event, &lpbr.launchProcessSN, 0, param, | |
2117 | paramlen + 1, receiverIDisPSN); | |
2118 | } | |
2119 | while (iErr == sessClosedErr && retries-- > 0); | |
2120 | ||
2121 | if (iErr != noErr) | |
2122 | { | |
2123 | free (param); | |
2124 | return -1; | |
2125 | } | |
2126 | ||
2127 | cursor_region_handle = NewRgn (); | |
2128 | ||
2129 | /* Wait for the subprocess to finish, when it will send us a ERPY | |
2130 | high level event. */ | |
2131 | while (1) | |
2132 | if (WaitNextEvent (highLevelEventMask, &reply_event, 180, | |
2133 | cursor_region_handle) | |
2134 | && reply_event.message == kEmacsSubprocessReply) | |
2135 | break; | |
2136 | ||
2137 | /* The return code is sent through the refCon */ | |
2138 | iErr = AcceptHighLevelEvent (&targ, &ref_con, NULL, &len); | |
2139 | if (iErr != noErr) | |
2140 | { | |
2141 | DisposeHandle ((Handle) cursor_region_handle); | |
2142 | free (param); | |
2143 | return -1; | |
2144 | } | |
2145 | ||
2146 | DisposeHandle ((Handle) cursor_region_handle); | |
2147 | free (param); | |
2148 | ||
2149 | return ref_con; | |
2150 | } | |
2151 | ||
2152 | ||
2153 | DIR * | |
2154 | opendir (const char *dirname) | |
2155 | { | |
2156 | char true_pathname[MAXPATHLEN+1], fully_resolved_name[MAXPATHLEN+1]; | |
2157 | char mac_pathname[MAXPATHLEN+1], vol_name[MAXPATHLEN+1]; | |
2158 | DIR *dirp; | |
2159 | CInfoPBRec cipb; | |
2160 | HVolumeParam vpb; | |
2161 | int len, vol_name_len; | |
2162 | ||
2163 | if (find_true_pathname (dirname, true_pathname, MAXPATHLEN+1) == -1) | |
2164 | return 0; | |
2165 | ||
2166 | len = readlink (true_pathname, fully_resolved_name, MAXPATHLEN); | |
2167 | if (len > -1) | |
2168 | fully_resolved_name[len] = '\0'; | |
2169 | else | |
2170 | strcpy (fully_resolved_name, true_pathname); | |
2171 | ||
2172 | dirp = (DIR *) malloc (sizeof(DIR)); | |
2173 | if (!dirp) | |
2174 | return 0; | |
2175 | ||
2176 | /* Handle special case when dirname is "/": sets up for readir to | |
2177 | get all mount volumes. */ | |
2178 | if (strcmp (fully_resolved_name, "/") == 0) | |
2179 | { | |
2180 | dirp->getting_volumes = 1; /* special all mounted volumes DIR struct */ | |
2181 | dirp->current_index = 1; /* index for first volume */ | |
2182 | return dirp; | |
2183 | } | |
2184 | ||
2185 | /* Handle typical cases: not accessing all mounted volumes. */ | |
2186 | if (!unix_to_mac_pathname (fully_resolved_name, mac_pathname, MAXPATHLEN+1)) | |
2187 | return 0; | |
2188 | ||
2189 | /* Emacs calls opendir without the trailing '/', Mac needs trailing ':' */ | |
2190 | len = strlen (mac_pathname); | |
2191 | if (mac_pathname[len - 1] != ':' && len < MAXPATHLEN) | |
2192 | strcat (mac_pathname, ":"); | |
2193 | ||
2194 | /* Extract volume name */ | |
2195 | vol_name_len = strchr (mac_pathname, ':') - mac_pathname; | |
2196 | strncpy (vol_name, mac_pathname, vol_name_len); | |
2197 | vol_name[vol_name_len] = '\0'; | |
2198 | strcat (vol_name, ":"); | |
2199 | ||
2200 | c2pstr (mac_pathname); | |
2201 | cipb.hFileInfo.ioNamePtr = mac_pathname; | |
2202 | /* using full pathname so vRefNum and DirID ignored */ | |
2203 | cipb.hFileInfo.ioVRefNum = 0; | |
2204 | cipb.hFileInfo.ioDirID = 0; | |
2205 | cipb.hFileInfo.ioFDirIndex = 0; | |
2206 | /* set to 0 to get information about specific dir or file */ | |
2207 | ||
2208 | errno = PBGetCatInfo (&cipb, false); | |
2209 | if (errno != noErr) | |
2210 | { | |
2211 | errno = ENOENT; | |
2212 | return 0; | |
2213 | } | |
2214 | ||
2215 | if (!(cipb.hFileInfo.ioFlAttrib & 0x10)) /* bit 4 = 1 for directories */ | |
2216 | return 0; /* not a directory */ | |
2217 | ||
2218 | dirp->dir_id = cipb.dirInfo.ioDrDirID; /* used later in readdir */ | |
2219 | dirp->getting_volumes = 0; | |
2220 | dirp->current_index = 1; /* index for first file/directory */ | |
2221 | ||
2222 | c2pstr (vol_name); | |
2223 | vpb.ioNamePtr = vol_name; | |
2224 | /* using full pathname so vRefNum and DirID ignored */ | |
2225 | vpb.ioVRefNum = 0; | |
2226 | vpb.ioVolIndex = -1; | |
2227 | errno = PBHGetVInfo ((union HParamBlockRec *) &vpb, false); | |
2228 | if (errno != noErr) | |
2229 | { | |
2230 | errno = ENOENT; | |
2231 | return 0; | |
2232 | } | |
2233 | ||
2234 | dirp->vol_ref_num = vpb.ioVRefNum; | |
2235 | ||
2236 | return dirp; | |
2237 | } | |
2238 | ||
2239 | int | |
2240 | closedir (DIR *dp) | |
2241 | { | |
2242 | free (dp); | |
2243 | ||
2244 | return 0; | |
2245 | } | |
2246 | ||
2247 | ||
2248 | struct dirent * | |
2249 | readdir (DIR *dp) | |
2250 | { | |
2251 | HParamBlockRec hpblock; | |
2252 | CInfoPBRec cipb; | |
2253 | static struct dirent s_dirent; | |
2254 | static Str255 s_name; | |
2255 | int done; | |
2256 | char *p; | |
2257 | ||
2258 | /* Handle the root directory containing the mounted volumes. Call | |
2259 | PBHGetVInfo specifying an index to obtain the info for a volume. | |
2260 | PBHGetVInfo returns an error when it receives an index beyond the | |
2261 | last volume, at which time we should return a nil dirent struct | |
2262 | pointer. */ | |
2263 | if (dp->getting_volumes) | |
2264 | { | |
2265 | hpblock.volumeParam.ioNamePtr = s_name; | |
2266 | hpblock.volumeParam.ioVRefNum = 0; | |
2267 | hpblock.volumeParam.ioVolIndex = dp->current_index; | |
2268 | ||
2269 | errno = PBHGetVInfo (&hpblock, false); | |
2270 | if (errno != noErr) | |
2271 | { | |
2272 | errno = ENOENT; | |
2273 | return 0; | |
2274 | } | |
2275 | ||
2276 | p2cstr (s_name); | |
2277 | strcat (s_name, "/"); /* need "/" for stat to work correctly */ | |
2278 | ||
2279 | dp->current_index++; | |
2280 | ||
2281 | s_dirent.d_ino = hpblock.volumeParam.ioVRefNum; | |
2282 | s_dirent.d_name = s_name; | |
2283 | ||
2284 | return &s_dirent; | |
2285 | } | |
2286 | else | |
2287 | { | |
2288 | cipb.hFileInfo.ioVRefNum = dp->vol_ref_num; | |
2289 | cipb.hFileInfo.ioNamePtr = s_name; | |
2290 | /* location to receive filename returned */ | |
2291 | ||
2292 | /* return only visible files */ | |
2293 | done = false; | |
2294 | while (!done) | |
2295 | { | |
2296 | cipb.hFileInfo.ioDirID = dp->dir_id; | |
2297 | /* directory ID found by opendir */ | |
2298 | cipb.hFileInfo.ioFDirIndex = dp->current_index; | |
2299 | ||
2300 | errno = PBGetCatInfo (&cipb, false); | |
2301 | if (errno != noErr) | |
2302 | { | |
2303 | errno = ENOENT; | |
2304 | return 0; | |
2305 | } | |
2306 | ||
2307 | /* insist on an visibile entry */ | |
2308 | if (cipb.hFileInfo.ioFlAttrib & 0x10) /* directory? */ | |
2309 | done = !(cipb.dirInfo.ioDrUsrWds.frFlags & fInvisible); | |
2310 | else | |
2311 | done = !(cipb.hFileInfo.ioFlFndrInfo.fdFlags & fInvisible); | |
2312 | ||
2313 | dp->current_index++; | |
2314 | } | |
2315 | ||
2316 | p2cstr (s_name); | |
2317 | ||
2318 | p = s_name; | |
2319 | while (*p) | |
2320 | { | |
2321 | if (*p == '/') | |
2322 | *p = ':'; | |
2323 | p++; | |
2324 | } | |
2325 | ||
2326 | s_dirent.d_ino = cipb.dirInfo.ioDrDirID; | |
2327 | /* value unimportant: non-zero for valid file */ | |
2328 | s_dirent.d_name = s_name; | |
2329 | ||
2330 | return &s_dirent; | |
2331 | } | |
2332 | } | |
2333 | ||
2334 | ||
2335 | char * | |
2336 | getwd (char *path) | |
2337 | { | |
2338 | char mac_pathname[MAXPATHLEN+1]; | |
2339 | Str255 directory_name; | |
2340 | OSErr errno; | |
2341 | CInfoPBRec cipb; | |
2342 | ||
2343 | if (path_from_vol_dir_name (mac_pathname, 255, 0, 0, "\p") == 0) | |
2344 | return NULL; | |
2345 | ||
2346 | if (mac_to_unix_pathname (mac_pathname, path, MAXPATHLEN+1) == 0) | |
2347 | return 0; | |
2348 | else | |
2349 | return path; | |
2350 | } | |
2351 | ||
2352 | ||
2353 | void | |
2354 | initialize_applescript () | |
2355 | { | |
2356 | AEDesc null_desc; | |
2357 | OSAError osaerror; | |
2358 | ||
2359 | /* if open fails, as_scripting_component is set to NULL. Its | |
2360 | subsequent use in OSA calls will fail with badComponentInstance | |
2361 | error. */ | |
2362 | as_scripting_component = OpenDefaultComponent (kOSAComponentType, | |
2363 | kAppleScriptSubtype); | |
2364 | ||
2365 | null_desc.descriptorType = typeNull; | |
2366 | null_desc.dataHandle = 0; | |
2367 | osaerror = OSAMakeContext (as_scripting_component, &null_desc, | |
2368 | kOSANullScript, &as_script_context); | |
2369 | if (osaerror) | |
2370 | as_script_context = kOSANullScript; | |
2371 | /* use default context if create fails */ | |
2372 | } | |
2373 | ||
2374 | ||
2375 | void terminate_applescript() | |
2376 | { | |
2377 | OSADispose (as_scripting_component, as_script_context); | |
2378 | CloseComponent (as_scripting_component); | |
2379 | } | |
2380 | ||
2381 | ||
2382 | /* Compile and execute the AppleScript SCRIPT and return the error | |
2383 | status as function value. A zero is returned if compilation and | |
2384 | execution is successful, in which case RESULT returns a pointer to | |
2385 | a string containing the resulting script value. Otherwise, the Mac | |
2386 | error code is returned and RESULT returns a pointer to an error | |
2387 | string. In both cases the caller should deallocate the storage | |
2388 | used by the string pointed to by RESULT if it is non-NULL. For | |
2389 | documentation on the MacOS scripting architecture, see Inside | |
2390 | Macintosh - Interapplication Communications: Scripting Components. */ | |
2391 | ||
2392 | static long | |
2393 | do_applescript (char *script, char **result) | |
2394 | { | |
2395 | AEDesc script_desc, result_desc, error_desc; | |
2396 | OSErr error; | |
2397 | OSAError osaerror; | |
2398 | long length; | |
2399 | ||
2400 | *result = 0; | |
2401 | ||
2402 | error = AECreateDesc (typeChar, script, strlen(script), &script_desc); | |
2403 | if (error) | |
2404 | return error; | |
2405 | ||
2406 | osaerror = OSADoScript (as_scripting_component, &script_desc, kOSANullScript, | |
2407 | typeChar, kOSAModeNull, &result_desc); | |
2408 | ||
2409 | if (osaerror == errOSAScriptError) | |
2410 | { | |
2411 | /* error executing AppleScript: retrieve error message */ | |
2412 | if (!OSAScriptError (as_scripting_component, kOSAErrorMessage, typeChar, | |
2413 | &error_desc)) | |
2414 | { | |
2415 | HLock (error_desc.dataHandle); | |
2416 | length = GetHandleSize(error_desc.dataHandle); | |
2417 | *result = (char *) xmalloc (length + 1); | |
2418 | if (*result) | |
2419 | { | |
2420 | memcpy (*result, *(error_desc.dataHandle), length); | |
2421 | *(*result + length) = '\0'; | |
2422 | } | |
2423 | HUnlock (error_desc.dataHandle); | |
2424 | AEDisposeDesc (&error_desc); | |
2425 | } | |
2426 | } | |
2427 | else if (osaerror == noErr) /* success: retrieve resulting script value */ | |
2428 | { | |
2429 | HLock (result_desc.dataHandle); | |
2430 | length = GetHandleSize(result_desc.dataHandle); | |
2431 | *result = (char *) xmalloc (length + 1); | |
2432 | if (*result) | |
2433 | { | |
2434 | memcpy (*result, *(result_desc.dataHandle), length); | |
2435 | *(*result + length) = '\0'; | |
2436 | } | |
2437 | HUnlock (result_desc.dataHandle); | |
2438 | } | |
2439 | ||
2440 | AEDisposeDesc (&script_desc); | |
2441 | AEDisposeDesc (&result_desc); | |
2442 | ||
2443 | return osaerror; | |
2444 | } | |
2445 | ||
2446 | ||
2447 | DEFUN ("do-applescript", Fdo_applescript, Sdo_applescript, 1, 1, 0, | |
2448 | "Compile and execute AppleScript SCRIPT and retrieve and return the\n\ | |
2449 | result. If compilation and execution are successful, the resulting script\n\ | |
2450 | value is returned as a string. Otherwise the function aborts and\n\ | |
2451 | displays the error message returned by the AppleScript scripting\n\ | |
2452 | component.") | |
2453 | (script) | |
2454 | Lisp_Object script; | |
2455 | { | |
2456 | char *result, *temp; | |
2457 | Lisp_Object lisp_result; | |
2458 | long status; | |
2459 | ||
2460 | CHECK_STRING (script, 0); | |
2461 | ||
2462 | status = do_applescript (XSTRING (script)->data, &result); | |
2463 | if (status) | |
2464 | { | |
2465 | if (!result) | |
2466 | error ("AppleScript error %ld", status); | |
2467 | else | |
2468 | { | |
2469 | /* Unfortunately only OSADoScript in do_applescript knows how | |
2470 | how large the resulting script value or error message is | |
2471 | going to be and therefore as caller memory must be | |
2472 | deallocated here. It is necessary to free the error | |
2473 | message before calling error to avoid a memory leak. */ | |
2474 | temp = (char *) alloca (strlen (result) + 1); | |
2475 | strcpy (temp, result); | |
2476 | xfree (result); | |
2477 | error (temp); | |
2478 | } | |
2479 | } | |
2480 | else | |
2481 | { | |
2482 | lisp_result = build_string (result); | |
2483 | xfree (result); | |
2484 | return lisp_result; | |
2485 | } | |
2486 | } | |
2487 | ||
2488 | ||
2489 | DEFUN ("mac-filename-to-unix", Fmac_filename_to_unix, Smac_filename_to_unix, 1, | |
2490 | 1, 0, | |
2491 | "Convert Macintosh filename to Unix form.") | |
2492 | (mac_filename) | |
2493 | Lisp_Object mac_filename; | |
2494 | { | |
2495 | char unix_filename[MAXPATHLEN+1]; | |
2496 | ||
2497 | CHECK_STRING (mac_filename, 0); | |
2498 | ||
2499 | if (mac_to_unix_pathname(XSTRING (mac_filename)->data, unix_filename, | |
2500 | MAXPATHLEN)) | |
2501 | return build_string (unix_filename); | |
2502 | else | |
2503 | return Qnil; | |
2504 | } | |
2505 | ||
2506 | ||
2507 | DEFUN ("unix-filename-to-mac", Funix_filename_to_mac, Sunix_filename_to_mac, 1, | |
2508 | 1, 0, | |
2509 | "Convert Unix filename to Mac form.") | |
2510 | (unix_filename) | |
2511 | Lisp_Object unix_filename; | |
2512 | { | |
2513 | char mac_filename[MAXPATHLEN+1]; | |
2514 | ||
2515 | CHECK_STRING (unix_filename, 0); | |
2516 | ||
2517 | if (unix_to_mac_pathname(XSTRING (unix_filename)->data, mac_filename, | |
2518 | MAXPATHLEN)) | |
2519 | return build_string (mac_filename); | |
2520 | else | |
2521 | return Qnil; | |
2522 | } | |
2523 | ||
2524 | ||
2525 | /* set interprogram-paste-function to mac-paste-function in mac-win.el | |
2526 | to enable Emacs to obtain the contents of the Mac clipboard. */ | |
2527 | DEFUN ("mac-paste-function", Fmac_paste_function, Smac_paste_function, 0, 0, 0, | |
2528 | "Return the contents of the Mac clipboard as a string.") | |
2529 | () | |
2530 | { | |
2531 | Lisp_Object value; | |
2532 | Handle my_handle; | |
2533 | long scrap_offset, rc, i; | |
2534 | ||
2535 | my_handle = NewHandle (0); /* allocate 0-length data area */ | |
2536 | ||
2537 | rc = GetScrap (my_handle, 'TEXT', &scrap_offset); | |
2538 | if (rc < 0) | |
2539 | return Qnil; | |
2540 | ||
2541 | HLock (my_handle); | |
2542 | ||
2543 | /* Emacs expects clipboard contents have Unix-style eol's */ | |
2544 | for (i = 0; i < rc; i++) | |
2545 | if ((*my_handle)[i] == '\r') | |
2546 | (*my_handle)[i] = '\n'; | |
2547 | ||
2548 | value = make_string (*my_handle, rc); | |
2549 | ||
2550 | HUnlock (my_handle); | |
2551 | ||
2552 | DisposeHandle (my_handle); | |
2553 | ||
2554 | return value; | |
2555 | } | |
2556 | ||
2557 | ||
2558 | /* set interprogram-cut-function to mac-cut-function in mac-win.el | |
2559 | to enable Emacs to write the top of the kill-ring to the Mac clipboard. */ | |
2560 | DEFUN ("mac-cut-function", Fmac_cut_function, Smac_cut_function, 1, 2, 0, | |
2561 | "Put the value of the string parameter to the Mac clipboard.") | |
2562 | (value, push) | |
2563 | Lisp_Object value, push; | |
2564 | { | |
2565 | char *buf; | |
2566 | int len, i; | |
2567 | ||
2568 | /* fixme: ignore the push flag for now */ | |
2569 | ||
2570 | CHECK_STRING (value, 0); | |
2571 | ||
2572 | len = XSTRING (value)->size; | |
2573 | buf = (char *) alloca (len); | |
2574 | bcopy(XSTRING (value)->data, buf, len); | |
2575 | ||
2576 | /* convert to Mac-style eol's before sending to clipboard */ | |
2577 | for (i = 0; i < len; i++) | |
2578 | if (buf[i] == '\n') | |
2579 | buf[i] = '\r'; | |
2580 | ||
2581 | ZeroScrap (); | |
2582 | PutScrap (len, 'TEXT', buf); | |
2583 | ||
2584 | return Qnil; | |
2585 | } | |
2586 | ||
2587 | ||
2588 | DEFUN ("x-selection-exists-p", Fx_selection_exists_p, Sx_selection_exists_p, | |
2589 | 0, 1, 0, | |
2590 | "Whether there is an owner for the given X Selection.\n\ | |
2591 | The arg should be the name of the selection in question, typically one of\n\ | |
2592 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'.\n\ | |
2593 | \(Those are literal upper-case symbol names, since that's what X expects.)\n\ | |
2594 | For convenience, the symbol nil is the same as `PRIMARY',\n\ | |
2595 | and t is the same as `SECONDARY'.") | |
2596 | (selection) | |
2597 | Lisp_Object selection; | |
2598 | { | |
2599 | CHECK_SYMBOL (selection, 0); | |
2600 | ||
2601 | /* Return nil for PRIMARY and SECONDARY selections; for CLIPBOARD, check | |
2602 | if the clipboard currently has valid text format contents. */ | |
2603 | ||
2604 | if (EQ (selection, QCLIPBOARD)) | |
2605 | { | |
2606 | Lisp_Object val = Qnil; | |
2607 | Lisp_Object value; | |
2608 | Handle my_handle; | |
2609 | long rc, scrap_offset; | |
2610 | ||
2611 | my_handle = NewHandle (0); | |
2612 | ||
2613 | rc = GetScrap (my_handle, 'TEXT', &scrap_offset); | |
2614 | if (rc >= 0) | |
2615 | val = Qt; | |
2616 | ||
2617 | DisposeHandle (my_handle); | |
2618 | ||
2619 | return val; | |
2620 | } | |
2621 | return Qnil; | |
2622 | } | |
2623 | ||
2624 | ||
2625 | void | |
2626 | syms_of_mac () | |
2627 | { | |
2628 | QCLIPBOARD = intern ("CLIPBOARD"); | |
2629 | staticpro (&QCLIPBOARD); | |
2630 | ||
2631 | defsubr (&Smac_paste_function); | |
2632 | defsubr (&Smac_cut_function); | |
2633 | defsubr (&Sx_selection_exists_p); | |
2634 | ||
2635 | defsubr (&Sdo_applescript); | |
2636 | defsubr (&Smac_filename_to_unix); | |
2637 | defsubr (&Sunix_filename_to_mac); | |
2638 | } |