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1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: utilscmn.cpp | |
3 | // Purpose: Miscellaneous utility functions and classes | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 29/01/98 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) 1998 Julian Smart | |
9 | // Licence: wxWindows license | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifdef __GNUG__ | |
13 | #pragma implementation "utils.h" | |
14 | #endif | |
15 | ||
16 | // For compilers that support precompilation, includes "wx.h". | |
17 | #include "wx/wxprec.h" | |
18 | ||
19 | #ifdef __BORLANDC__ | |
20 | #pragma hdrstop | |
21 | #endif | |
22 | ||
23 | #ifndef WX_PRECOMP | |
24 | #include "wx/defs.h" | |
25 | #include "wx/utils.h" | |
26 | #include "wx/window.h" | |
27 | #include "wx/menu.h" | |
28 | #include "wx/frame.h" | |
29 | #endif | |
30 | ||
31 | #if USE_IOSTREAMH | |
32 | #include <iostream.h> | |
33 | #else | |
34 | #include <iostream> | |
35 | #endif | |
36 | ||
37 | #include <fstream.h> | |
38 | #include <ctype.h> | |
39 | #include <stdio.h> | |
40 | #include <stdlib.h> | |
41 | #include <string.h> | |
42 | #if !defined(__WATCOMC__) | |
43 | #if !(defined(_MSC_VER) && (_MSC_VER > 800)) | |
44 | #include <errno.h> | |
45 | #endif | |
46 | #endif | |
47 | #include <time.h> | |
48 | #include <sys/types.h> | |
49 | #include <sys/stat.h> | |
50 | ||
51 | // Pattern matching code. | |
52 | // Yes, this path is deliberate (for Borland compilation) | |
53 | #ifdef wx_mac /* MATTHEW: [5] Mac doesn't like paths with "/" */ | |
54 | #include "glob.inc" | |
55 | #else | |
56 | #include "../common/glob.inc" | |
57 | #endif | |
58 | ||
59 | #ifdef __WINDOWS__ | |
60 | #include "windows.h" | |
61 | #endif | |
62 | ||
63 | #define _MAXPATHLEN 500 | |
64 | ||
65 | extern char *wxBuffer; | |
66 | ||
67 | #ifdef __VMS__ | |
68 | // we have no strI functions under VMS, therefore I have implemented | |
69 | // an inefficient but portable version: convert copies of strings to lowercase | |
70 | // and then use the normal comparison | |
71 | static void myLowerString(char *s) | |
72 | { | |
73 | while(*s){ | |
74 | if(isalpha(*s)) *s = (char)tolower(*s); | |
75 | s++; | |
76 | } | |
77 | } | |
78 | ||
79 | int strcasecmp(const char *str_1, const char *str_2) | |
80 | { | |
81 | char *temp1 = new char[strlen(str_1)+1]; | |
82 | char *temp2 = new char[strlen(str_2)+1]; | |
83 | strcpy(temp1,str_1); | |
84 | strcpy(temp2,str_2); | |
85 | myLowerString(temp1); | |
86 | myLowerString(temp2); | |
87 | ||
88 | int result = strcmp(temp1,temp2); | |
89 | delete[] temp1; | |
90 | delete[] temp2; | |
91 | ||
92 | return(result); | |
93 | } | |
94 | ||
95 | int strncasecmp(const char *str_1, const char *str_2, size_t maxchar) | |
96 | { | |
97 | char *temp1 = new char[strlen(str_1)+1]; | |
98 | char *temp2 = new char[strlen(str_2)+1]; | |
99 | strcpy(temp1,str_1); | |
100 | strcpy(temp2,str_2); | |
101 | myLowerString(temp1); | |
102 | myLowerString(temp2); | |
103 | ||
104 | int result = strncmp(temp1,temp2,maxchar); | |
105 | delete[] temp1; | |
106 | delete[] temp2; | |
107 | ||
108 | return(result); | |
109 | } | |
110 | #endif | |
111 | ||
112 | #ifdef __WINDOWS__ | |
113 | ||
114 | #ifndef __GNUWIN32__ | |
115 | #define strcasecmp stricmp | |
116 | #define strncasecmp strnicmp | |
117 | #endif | |
118 | ||
119 | #ifdef _MSC_VER | |
120 | #pragma warning (disable : 4245) | |
121 | #endif | |
122 | ||
123 | #ifdef _MSC_VER | |
124 | #pragma warning (default : 4245) | |
125 | #endif | |
126 | ||
127 | #else | |
128 | // This declaration is missing in SunOS! | |
129 | // (Yes, I know it is NOT ANSI-C but its in BSD libc) | |
130 | #if defined(__xlC) || defined(__AIX__) || defined(__GNUG__) | |
131 | extern "C" | |
132 | { | |
133 | int strcasecmp (const char *, const char *); | |
134 | int strncasecmp (const char *, const char *, size_t); | |
135 | } | |
136 | #endif | |
137 | #endif /* __WINDOWS__ */ | |
138 | ||
139 | ||
140 | char * | |
141 | copystring (const char *s) | |
142 | { | |
143 | if (s == NULL) s = ""; | |
144 | size_t len = strlen (s) + 1; | |
145 | ||
146 | char *news = new char[len]; | |
147 | memcpy (news, s, len); // Should be the fastest | |
148 | ||
149 | return news; | |
150 | } | |
151 | ||
152 | // Id generation | |
153 | static long wxCurrentId = 100; | |
154 | ||
155 | long | |
156 | wxNewId (void) | |
157 | { | |
158 | return wxCurrentId++; | |
159 | } | |
160 | ||
161 | long | |
162 | wxGetCurrentId(void) { return wxCurrentId; } | |
163 | ||
164 | void | |
165 | wxRegisterId (long id) | |
166 | { | |
167 | if (id >= wxCurrentId) | |
168 | wxCurrentId = id + 1; | |
169 | } | |
170 | ||
171 | void | |
172 | StringToFloat (char *s, float *number) | |
173 | { | |
174 | if (s && *s && number) | |
175 | *number = (float) strtod (s, NULL); | |
176 | } | |
177 | ||
178 | void | |
179 | StringToDouble (char *s, double *number) | |
180 | { | |
181 | if (s && *s && number) | |
182 | *number = strtod (s, NULL); | |
183 | } | |
184 | ||
185 | char * | |
186 | FloatToString (float number, const char *fmt) | |
187 | { | |
188 | static char buf[256]; | |
189 | ||
190 | // sprintf (buf, "%.2f", number); | |
191 | sprintf (buf, fmt, number); | |
192 | return buf; | |
193 | } | |
194 | ||
195 | char * | |
196 | DoubleToString (double number, const char *fmt) | |
197 | { | |
198 | static char buf[256]; | |
199 | ||
200 | sprintf (buf, fmt, number); | |
201 | return buf; | |
202 | } | |
203 | ||
204 | void | |
205 | StringToInt (char *s, int *number) | |
206 | { | |
207 | if (s && *s && number) | |
208 | *number = (int) strtol (s, NULL, 10); | |
209 | } | |
210 | ||
211 | void | |
212 | StringToLong (char *s, long *number) | |
213 | { | |
214 | if (s && *s && number) | |
215 | *number = strtol (s, NULL, 10); | |
216 | } | |
217 | ||
218 | char * | |
219 | IntToString (int number) | |
220 | { | |
221 | static char buf[20]; | |
222 | ||
223 | sprintf (buf, "%d", number); | |
224 | return buf; | |
225 | } | |
226 | ||
227 | char * | |
228 | LongToString (long number) | |
229 | { | |
230 | static char buf[20]; | |
231 | ||
232 | sprintf (buf, "%ld", number); | |
233 | return buf; | |
234 | } | |
235 | ||
236 | // Array used in DecToHex conversion routine. | |
237 | static char hexArray[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', | |
238 | 'C', 'D', 'E', 'F' }; | |
239 | ||
240 | // Convert 2-digit hex number to decimal | |
241 | int wxHexToDec(char *buf) | |
242 | { | |
243 | int firstDigit, secondDigit; | |
244 | ||
245 | if (buf[0] >= 'A') | |
246 | firstDigit = buf[0] - 'A' + 10; | |
247 | else | |
248 | firstDigit = buf[0] - '0'; | |
249 | ||
250 | if (buf[1] >= 'A') | |
251 | secondDigit = buf[1] - 'A' + 10; | |
252 | else | |
253 | secondDigit = buf[1] - '0'; | |
254 | ||
255 | return firstDigit * 16 + secondDigit; | |
256 | } | |
257 | ||
258 | // Convert decimal integer to 2-character hex string | |
259 | void wxDecToHex(int dec, char *buf) | |
260 | { | |
261 | int firstDigit = (int)(dec/16.0); | |
262 | int secondDigit = (int)(dec - (firstDigit*16.0)); | |
263 | buf[0] = hexArray[firstDigit]; | |
264 | buf[1] = hexArray[secondDigit]; | |
265 | buf[2] = 0; | |
266 | } | |
267 | ||
268 | // Match a string INDEPENDENT OF CASE | |
269 | bool | |
270 | StringMatch (char *str1, char *str2, bool subString, bool exact) | |
271 | { | |
272 | if (str1 == NULL || str2 == NULL) | |
273 | return FALSE; | |
274 | if (str1 == str2) | |
275 | return TRUE; | |
276 | ||
277 | if (subString) | |
278 | { | |
279 | int len1 = strlen (str1); | |
280 | int len2 = strlen (str2); | |
281 | int i; | |
282 | ||
283 | // Search for str1 in str2 | |
284 | // Slow .... but acceptable for short strings | |
285 | for (i = 0; i <= len2 - len1; i++) | |
286 | { | |
287 | if (strncasecmp (str1, str2 + i, len1) == 0) | |
288 | return TRUE; | |
289 | } | |
290 | } | |
291 | else if (exact) | |
292 | { | |
293 | if (strcasecmp (str1, str2) == 0) | |
294 | return TRUE; | |
295 | } | |
296 | else | |
297 | { | |
298 | int len1 = strlen (str1); | |
299 | int len2 = strlen (str2); | |
300 | ||
301 | if (strncasecmp (str1, str2, wxMin (len1, len2)) == 0) | |
302 | return TRUE; | |
303 | } | |
304 | ||
305 | return FALSE; | |
306 | } | |
307 | ||
308 | // Return the current date/time | |
309 | // [volatile] | |
310 | wxString wxNow( void ) | |
311 | { | |
312 | time_t now = time(NULL); | |
313 | char *date = ctime(&now); | |
314 | date[24] = '\0'; | |
315 | return wxString(date); | |
316 | } | |
317 | ||
318 | /* Get Full RFC822 style email address */ | |
319 | bool | |
320 | wxGetEmailAddress (char *address, int maxSize) | |
321 | { | |
322 | char host[65]; | |
323 | char user[65]; | |
324 | ||
325 | if (wxGetHostName(host, 64) == FALSE) | |
326 | return FALSE; | |
327 | if (wxGetUserId(user, 64) == FALSE) | |
328 | return FALSE; | |
329 | ||
330 | char tmp[130]; | |
331 | strcpy(tmp, user); | |
332 | strcat(tmp, "@"); | |
333 | strcat(tmp, host); | |
334 | ||
335 | strncpy(address, tmp, maxSize - 1); | |
336 | address[maxSize-1] = '\0'; | |
337 | return TRUE; | |
338 | } | |
339 | ||
340 | /* | |
341 | * Strip out any menu codes | |
342 | */ | |
343 | ||
344 | char *wxStripMenuCodes (char *in, char *out) | |
345 | { | |
346 | if (!in) | |
347 | return NULL; | |
348 | ||
349 | if (!out) | |
350 | out = copystring(in); | |
351 | ||
352 | char *tmpOut = out; | |
353 | ||
354 | while (*in) | |
355 | { | |
356 | if (*in == '&') | |
357 | { | |
358 | // Check && -> &, &x -> x | |
359 | if (*++in == '&') | |
360 | *out++ = *in++; | |
361 | } | |
362 | else if (*in == '\t') | |
363 | { | |
364 | // Remove all stuff after \t in X mode, and let the stuff as is | |
365 | // in Windows mode. | |
366 | // Accelerators are handled in wx_item.cc for Motif, and are not | |
367 | // YET supported in XView | |
368 | break; | |
369 | } | |
370 | else | |
371 | *out++ = *in++; | |
372 | } // while | |
373 | ||
374 | *out = '\0'; | |
375 | ||
376 | return tmpOut; | |
377 | } | |
378 | ||
379 | ||
380 | /* | |
381 | * Window search functions | |
382 | * | |
383 | */ | |
384 | ||
385 | /* | |
386 | * If parent is non-NULL, look through children for a label or title | |
387 | * matching the specified string. If NULL, look through all top-level windows. | |
388 | * | |
389 | */ | |
390 | ||
391 | static wxWindow *wxFindWindowByLabel1 (const wxString& title, wxWindow * parent); | |
392 | ||
393 | wxWindow * | |
394 | wxFindWindowByLabel (const wxString& title, wxWindow * parent) | |
395 | { | |
396 | if (parent) | |
397 | { | |
398 | return wxFindWindowByLabel1 (title, parent); | |
399 | } | |
400 | else | |
401 | { | |
402 | for (wxNode * node = wxTopLevelWindows.First (); node; node = node->Next ()) | |
403 | { | |
404 | wxWindow *win = (wxWindow *) node->Data (); | |
405 | wxWindow *retwin = wxFindWindowByLabel1 (title, win); | |
406 | if (retwin) | |
407 | return retwin; | |
408 | } // for() | |
409 | ||
410 | } | |
411 | return NULL; | |
412 | } | |
413 | ||
414 | // Recursive | |
415 | static wxWindow * | |
416 | wxFindWindowByLabel1 (const wxString& title, wxWindow * parent) | |
417 | { | |
418 | if (parent) | |
419 | { | |
420 | if (parent->GetLabel() == title) | |
421 | return parent; | |
422 | } | |
423 | ||
424 | if (parent) | |
425 | { | |
426 | for (wxNode * node = parent->GetChildren()->First (); node; node = node->Next ()) | |
427 | { | |
428 | wxWindow *win = (wxWindow *) node->Data (); | |
429 | wxWindow *retwin = wxFindWindowByLabel1 (title, win); | |
430 | if (retwin) | |
431 | return retwin; | |
432 | } // for() | |
433 | ||
434 | } | |
435 | ||
436 | return NULL; // Not found | |
437 | ||
438 | } | |
439 | ||
440 | /* | |
441 | * If parent is non-NULL, look through children for a name | |
442 | * matching the specified string. If NULL, look through all top-level windows. | |
443 | * | |
444 | */ | |
445 | ||
446 | static wxWindow *wxFindWindowByName1 (const wxString& title, wxWindow * parent); | |
447 | ||
448 | wxWindow * | |
449 | wxFindWindowByName (const wxString& title, wxWindow * parent) | |
450 | { | |
451 | if (parent) | |
452 | { | |
453 | return wxFindWindowByName1 (title, parent); | |
454 | } | |
455 | else | |
456 | { | |
457 | for (wxNode * node = wxTopLevelWindows.First (); node; node = node->Next ()) | |
458 | { | |
459 | wxWindow *win = (wxWindow *) node->Data (); | |
460 | wxWindow *retwin = wxFindWindowByName1 (title, win); | |
461 | if (retwin) | |
462 | return retwin; | |
463 | } // for() | |
464 | ||
465 | } | |
466 | // Failed? Try by label instead. | |
467 | return wxFindWindowByLabel(title, parent); | |
468 | } | |
469 | ||
470 | // Recursive | |
471 | static wxWindow * | |
472 | wxFindWindowByName1 (const wxString& title, wxWindow * parent) | |
473 | { | |
474 | if (parent) | |
475 | { | |
476 | if ( parent->GetName() == title ) | |
477 | return parent; | |
478 | } | |
479 | ||
480 | if (parent) | |
481 | { | |
482 | for (wxNode * node = parent->GetChildren()->First (); node; node = node->Next ()) | |
483 | { | |
484 | wxWindow *win = (wxWindow *) node->Data (); | |
485 | wxWindow *retwin = wxFindWindowByName1 (title, win); | |
486 | if (retwin) | |
487 | return retwin; | |
488 | } // for() | |
489 | ||
490 | } | |
491 | ||
492 | return NULL; // Not found | |
493 | ||
494 | } | |
495 | ||
496 | // Returns menu item id or -1 if none. | |
497 | int | |
498 | wxFindMenuItemId (wxFrame * frame, const wxString& menuString, const wxString& itemString) | |
499 | { | |
500 | wxMenuBar *menuBar = frame->GetMenuBar (); | |
501 | if (!menuBar) | |
502 | return -1; | |
503 | return menuBar->FindMenuItem (menuString, itemString); | |
504 | } | |
505 | ||
506 | /* | |
507 | * wxDebugStreamBuf | |
508 | */ | |
509 | #if !defined(_WINDLL) | |
510 | ||
511 | wxDebugStreamBuf::wxDebugStreamBuf(void) | |
512 | { | |
513 | if (allocate()) setp(base(),ebuf()); | |
514 | } | |
515 | ||
516 | int wxDebugStreamBuf::overflow(int WXUNUSED(i)) | |
517 | { | |
518 | int len = pptr() - pbase(); | |
519 | char *txt = new char[len+1]; | |
520 | strncpy(txt, pbase(), len); | |
521 | txt[len] = '\0'; | |
522 | #ifdef __WINDOWS__ | |
523 | OutputDebugString((LPCSTR)txt); | |
524 | #else | |
525 | fprintf(stderr, txt); | |
526 | #endif | |
527 | setp(pbase(), epptr()); | |
528 | delete[] txt; | |
529 | return EOF; | |
530 | } | |
531 | ||
532 | int wxDebugStreamBuf::sync(void) | |
533 | { | |
534 | int len = pptr() - pbase(); | |
535 | char *txt = new char[len+1]; | |
536 | strncpy(txt, pbase(), len); | |
537 | txt[len] = '\0'; | |
538 | #ifdef __WINDOWS__ | |
539 | OutputDebugString((LPCSTR)txt); | |
540 | #else | |
541 | fprintf(stderr, txt); | |
542 | #endif | |
543 | setp(pbase(), epptr()); | |
544 | delete[] txt; | |
545 | return 0; | |
546 | } | |
547 | ||
548 | #endif | |
549 | ||
550 | /* | |
551 | On Fri, 21 Jul 1995, Paul Craven wrote: | |
552 | ||
553 | > Is there a way to find the path of running program's executable? I can get | |
554 | > my home directory, and the current directory, but I don't know how to get the | |
555 | > executable directory. | |
556 | > | |
557 | ||
558 | The code below (warty as it is), does what you want on most Unix, | |
559 | DOS, and Mac platforms (it's from the ALS Prolog main). | |
560 | ||
561 | || Ken Bowen Applied Logic Systems, Inc. PO Box 180, | |
562 | ||==== Voice: +1 (617)965-9191 Newton Centre, | |
563 | || FAX: +1 (617)965-1636 MA 02159 USA | |
564 | Email: ken@als.com WWW: http://www.als.com | |
565 | ------------------------------------------------------------------------ | |
566 | */ | |
567 | ||
568 | // This code is commented out but it may be integrated with wxWin at | |
569 | // a later date, after testing. Thanks Ken! | |
570 | #if 0 | |
571 | ||
572 | /*--------------------------------------------------------------------* | |
573 | | whereami is given a filename f in the form: whereami(argv[0]) | |
574 | | It returns the directory in which the executable file (containing | |
575 | | this code [main.c] ) may be found. A dot will be returned to indicate | |
576 | | the current directory. | |
577 | *--------------------------------------------------------------------*/ | |
578 | ||
579 | static void | |
580 | whereami(name) | |
581 | char *name; | |
582 | { | |
583 | register char *cutoff = NULL; /* stifle -Wall */ | |
584 | register char *s; | |
585 | register char *t; | |
586 | int cc; | |
587 | char ebuf[4096]; | |
588 | ||
589 | /* | |
590 | * See if the file is accessible either through the current directory | |
591 | * or through an absolute path. | |
592 | */ | |
593 | ||
594 | if (access(name, R_OK) == 0) { | |
595 | ||
596 | /*-------------------------------------------------------------* | |
597 | * The file was accessible without any other work. But the current | |
598 | * working directory might change on us, so if it was accessible | |
599 | * through the cwd, then we should get it for later accesses. | |
600 | *-------------------------------------------------------------*/ | |
601 | ||
602 | t = imagedir; | |
603 | if (!absolute_pathname(name)) { | |
604 | #if defined(DOS) || defined(__WIN32__) | |
605 | int drive; | |
606 | char *newrbuf; | |
607 | ||
608 | newrbuf = imagedir; | |
609 | #ifndef __DJGPP__ | |
610 | if (*(name + 1) == ':') { | |
611 | if (*name >= 'a' && *name <= 'z') | |
612 | drive = (int) (*name - 'a' + 1); | |
613 | else | |
614 | drive = (int) (*name - 'A' + 1); | |
615 | *newrbuf++ = *name; | |
616 | *newrbuf++ = *(name + 1); | |
617 | *newrbuf++ = DIR_SEPARATOR; | |
618 | } | |
619 | else { | |
620 | drive = 0; | |
621 | *newrbuf++ = DIR_SEPARATOR; | |
622 | } | |
623 | if (getcwd(newrbuf, drive) == 0) { /* } */ | |
624 | #else | |
625 | if (getcwd(newrbuf, 1024) == 0) { /* } */ | |
626 | #endif | |
627 | #else /* DOS */ | |
628 | #ifdef HAVE_GETWD | |
629 | if (getwd(imagedir) == 0) { /* } */ | |
630 | #else /* !HAVE_GETWD */ | |
631 | if (getcwd(imagedir, 1024) == 0) { | |
632 | #endif /* !HAVE_GETWD */ | |
633 | #endif /* DOS */ | |
634 | fatal_error(FE_GETCWD, 0); | |
635 | } | |
636 | for (; *t; t++) /* Set t to end of buffer */ | |
637 | ; | |
638 | if (*(t - 1) == DIR_SEPARATOR) /* leave slash if already | |
639 | * last char | |
640 | */ | |
641 | cutoff = t - 1; | |
642 | else { | |
643 | cutoff = t; /* otherwise put one in */ | |
644 | *t++ = DIR_SEPARATOR; | |
645 | } | |
646 | } | |
647 | #if (!defined(__MAC__) && !defined(__DJGPP__) && !defined(__GO32__) && !defined(__WIN32__)) | |
648 | else | |
649 | (*t++ = DIR_SEPARATOR); | |
650 | #endif | |
651 | ||
652 | /*-------------------------------------------------------------* | |
653 | * Copy the rest of the string and set the cutoff if it was not | |
654 | * already set. If the first character of name is a slash, cutoff | |
655 | * is not presently set but will be on the first iteration of the | |
656 | * loop below. | |
657 | *-------------------------------------------------------------*/ | |
658 | ||
659 | for ((*name == DIR_SEPARATOR ? (s = name+1) : (s = name));;) { | |
660 | if (*s == DIR_SEPARATOR) | |
661 | cutoff = t; | |
662 | if (!(*t++ = *s++)) | |
663 | break; | |
664 | } | |
665 | ||
666 | } | |
667 | else { | |
668 | ||
669 | /*-------------------------------------------------------------* | |
670 | * Get the path list from the environment. If the path list is | |
671 | * inaccessible for any reason, leave with fatal error. | |
672 | *-------------------------------------------------------------*/ | |
673 | ||
674 | #ifdef __MAC__ | |
675 | if ((s = getenv("Commands")) == (char *) 0) | |
676 | #else | |
677 | if ((s = getenv("PATH")) == (char *) 0) | |
678 | #endif | |
679 | fatal_error(FE_PATH, 0); | |
680 | ||
681 | /* | |
682 | * Copy path list into ebuf and set the source pointer to the | |
683 | * beginning of this buffer. | |
684 | */ | |
685 | ||
686 | strcpy(ebuf, s); | |
687 | s = ebuf; | |
688 | ||
689 | for (;;) { | |
690 | t = imagedir; | |
691 | while (*s && *s != PATH_SEPARATOR) | |
692 | *t++ = *s++; | |
693 | if (t > imagedir && *(t - 1) == DIR_SEPARATOR) | |
694 | ; /* do nothing -- slash already is in place */ | |
695 | else | |
696 | *t++ = DIR_SEPARATOR; /* put in the slash */ | |
697 | cutoff = t - 1; /* set cutoff */ | |
698 | strcpy(t, name); | |
699 | if (access(imagedir, R_OK) == 0) | |
700 | break; | |
701 | ||
702 | if (*s) | |
703 | s++; /* advance source pointer */ | |
704 | else | |
705 | fatal_error(FE_INFND, 0); | |
706 | } | |
707 | ||
708 | } | |
709 | ||
710 | /*-------------------------------------------------------------* | |
711 | | At this point the full pathname should exist in imagedir and | |
712 | | cutoff should be set to the final slash. We must now determine | |
713 | | whether the file name is a symbolic link or not and chase it down | |
714 | | if it is. Note that we reuse ebuf for getting the link. | |
715 | *-------------------------------------------------------------*/ | |
716 | ||
717 | #ifdef HAVE_SYMLINK | |
718 | while ((cc = readlink(imagedir, ebuf, 512)) != -1) { | |
719 | ebuf[cc] = 0; | |
720 | s = ebuf; | |
721 | if (*s == DIR_SEPARATOR) { | |
722 | t = imagedir; | |
723 | } | |
724 | else { | |
725 | t = cutoff + 1; | |
726 | } | |
727 | for (;;) { | |
728 | if (*s == DIR_SEPARATOR) | |
729 | cutoff = t; /* mark the last slash seen */ | |
730 | if (!(*t++ = *s++)) /* copy the character */ | |
731 | break; | |
732 | } | |
733 | } | |
734 | ||
735 | #endif /* HAVE_SYMLINK */ | |
736 | ||
737 | strcpy(imagename, cutoff + 1); /* keep the image name */ | |
738 | *(cutoff + 1) = 0; /* chop off the filename part */ | |
739 | } | |
740 | ||
741 | #endif | |
742 |