1 /* arsup.c - Archive support for MRI compatibility
2    Copyright 1992, 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, 2003,
3    2004, 2007, 2008 Free Software Foundation, Inc.
4 
5    This file is part of GNU Binutils.
6 
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 3 of the License, or
10    (at your option) any later version.
11 
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16 
17    You should have received a copy of the GNU General Public License
18    along with this program; if not, write to the Free Software
19    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20    MA 02110-1301, USA.  */
21 
22 
23 /* Contributed by Steve Chamberlain
24    sac@cygnus.com
25 
26    This file looks after requests from arparse.y, to provide the MRI
27    style librarian command syntax + 1 word LIST.  */
28 
29 #include "sysdep.h"
30 #include "bfd.h"
31 #include "libiberty.h"
32 #include "filenames.h"
33 #include "bucomm.h"
34 #include "arsup.h"
35 
36 static void map_over_list
37   (bfd *, void (*function) (bfd *, bfd *), struct list *);
38 static void ar_directory_doer (bfd *, bfd *);
39 static void ar_addlib_doer (bfd *, bfd *);
40 
41 extern int verbose;
42 
43 static bfd *obfd;
44 static char *real_name;
45 static FILE *outfile;
46 
47 static void
48 map_over_list (bfd *arch, void (*function) (bfd *, bfd *), struct list *list)
49 {
50   bfd *head;
51 
52   if (list == NULL)
53     {
54       bfd *next;
55 
56       head = arch->archive_next;
57       while (head != NULL)
58 	{
59 	  next = head->archive_next;
60 	  function (head, (bfd *) NULL);
61 	  head = next;
62 	}
63     }
64   else
65     {
66       struct list *ptr;
67 
68       /* This may appear to be a baroque way of accomplishing what we
69 	 want.  however we have to iterate over the filenames in order
70 	 to notice where a filename is requested but does not exist in
71 	 the archive.  Ditto mapping over each file each time -- we
72 	 want to hack multiple references.  */
73       for (ptr = list; ptr; ptr = ptr->next)
74 	{
75 	  bfd_boolean found = FALSE;
76 	  bfd *prev = arch;
77 
78 	  for (head = arch->archive_next; head; head = head->archive_next)
79 	    {
80 	      if (head->filename != NULL
81 		  && FILENAME_CMP (ptr->name, head->filename) == 0)
82 		{
83 		  found = TRUE;
84 		  function (head, prev);
85 		}
86 	      prev = head;
87 	    }
88 	  if (! found)
89 	    fprintf (stderr, _("No entry %s in archive.\n"), ptr->name);
90 	}
91     }
92 }
93 
94 
95 
96 static void
97 ar_directory_doer (bfd *abfd, bfd *ignore ATTRIBUTE_UNUSED)
98 {
99   print_arelt_descr(outfile, abfd, verbose);
100 }
101 
102 void
103 ar_directory (char *ar_name, struct list *list, char *output)
104 {
105   bfd *arch;
106 
107   arch = open_inarch (ar_name, (char *) NULL);
108   if (output)
109     {
110       outfile = fopen(output,"w");
111       if (outfile == 0)
112 	{
113 	  outfile = stdout;
114 	  fprintf (stderr,_("Can't open file %s\n"), output);
115 	  output = 0;
116 	}
117     }
118   else
119     outfile = stdout;
120 
121   map_over_list (arch, ar_directory_doer, list);
122 
123   bfd_close (arch);
124 
125   if (output)
126    fclose (outfile);
127 }
128 
129 void
130 prompt (void)
131 {
132   extern int interactive;
133 
134   if (interactive)
135     {
136       printf ("AR >");
137       fflush (stdout);
138     }
139 }
140 
141 void
142 maybequit (void)
143 {
144   if (! interactive)
145     xexit (9);
146 }
147 
148 
149 void
150 ar_open (char *name, int t)
151 {
152   char *tname = (char *) xmalloc (strlen (name) + 10);
153   const char *bname = lbasename (name);
154   real_name = name;
155 
156   /* Prepend tmp- to the beginning, to avoid file-name clashes after
157      truncation on filesystems with limited namespaces (DOS).  */
158   sprintf (tname, "%.*stmp-%s", (int) (bname - name), name, bname);
159   obfd = bfd_openw (tname, NULL);
160 
161   if (!obfd)
162     {
163       fprintf (stderr,
164 	       _("%s: Can't open output archive %s\n"),
165 	       program_name,  tname);
166 
167       maybequit ();
168     }
169   else
170     {
171       if (!t)
172 	{
173 	  bfd **ptr;
174 	  bfd *element;
175 	  bfd *ibfd;
176 
177 	  ibfd = bfd_openr (name, NULL);
178 
179 	  if (!ibfd)
180 	    {
181 	      fprintf (stderr,_("%s: Can't open input archive %s\n"),
182 		       program_name, name);
183 	      maybequit ();
184 	      return;
185 	    }
186 
187 	  if (!bfd_check_format(ibfd, bfd_archive))
188 	    {
189 	      fprintf (stderr,
190 		       _("%s: file %s is not an archive\n"),
191 		       program_name, name);
192 	      maybequit ();
193 	      return;
194 	    }
195 
196 	  ptr = &(obfd->archive_head);
197 	  element = bfd_openr_next_archived_file (ibfd, NULL);
198 
199 	  while (element)
200 	    {
201 	      *ptr = element;
202 	      ptr = &element->archive_next;
203 	      element = bfd_openr_next_archived_file (ibfd, element);
204 	    }
205 	}
206 
207       bfd_set_format (obfd, bfd_archive);
208 
209       obfd->has_armap = 1;
210       obfd->is_thin_archive = 0;
211     }
212 }
213 
214 static void
215 ar_addlib_doer (bfd *abfd, bfd *prev)
216 {
217   /* Add this module to the output bfd.  */
218   if (prev != NULL)
219     prev->archive_next = abfd->archive_next;
220 
221   abfd->archive_next = obfd->archive_head;
222   obfd->archive_head = abfd;
223 }
224 
225 void
226 ar_addlib (char *name, struct list *list)
227 {
228   if (obfd == NULL)
229     {
230       fprintf (stderr, _("%s: no output archive specified yet\n"), program_name);
231       maybequit ();
232     }
233   else
234     {
235       bfd *arch;
236 
237       arch = open_inarch (name, (char *) NULL);
238       if (arch != NULL)
239 	map_over_list (arch, ar_addlib_doer, list);
240 
241       /* Don't close the bfd, since it will make the elements disappear.  */
242     }
243 }
244 
245 void
246 ar_addmod (struct list *list)
247 {
248   if (!obfd)
249     {
250       fprintf (stderr, _("%s: no open output archive\n"), program_name);
251       maybequit ();
252     }
253   else
254     {
255       while (list)
256 	{
257 	  bfd *abfd = bfd_openr (list->name, NULL);
258 
259 	  if (!abfd)
260 	    {
261 	      fprintf (stderr, _("%s: can't open file %s\n"),
262 		       program_name, list->name);
263 	      maybequit ();
264 	    }
265 	  else
266 	    {
267 	      abfd->archive_next = obfd->archive_head;
268 	      obfd->archive_head = abfd;
269 	    }
270 	  list = list->next;
271 	}
272     }
273 }
274 
275 
276 void
277 ar_clear (void)
278 {
279   if (obfd)
280     obfd->archive_head = 0;
281 }
282 
283 void
284 ar_delete (struct list *list)
285 {
286   if (!obfd)
287     {
288       fprintf (stderr, _("%s: no open output archive\n"), program_name);
289       maybequit ();
290     }
291   else
292     {
293       while (list)
294 	{
295 	  /* Find this name in the archive.  */
296 	  bfd *member = obfd->archive_head;
297 	  bfd **prev = &(obfd->archive_head);
298 	  int found = 0;
299 
300 	  while (member)
301 	    {
302 	      if (FILENAME_CMP(member->filename, list->name) == 0)
303 		{
304 		  *prev = member->archive_next;
305 		  found = 1;
306 		}
307 	      else
308 		prev = &(member->archive_next);
309 
310 	      member = member->archive_next;
311 	    }
312 
313 	  if (!found)
314 	    {
315 	      fprintf (stderr, _("%s: can't find module file %s\n"),
316 		       program_name, list->name);
317 	      maybequit ();
318 	    }
319 
320 	  list = list->next;
321 	}
322     }
323 }
324 
325 void
326 ar_save (void)
327 {
328   if (!obfd)
329     {
330       fprintf (stderr, _("%s: no open output archive\n"), program_name);
331       maybequit ();
332     }
333   else
334     {
335       char *ofilename = xstrdup (bfd_get_filename (obfd));
336 
337       bfd_close (obfd);
338 
339       smart_rename (ofilename, real_name, 0);
340       obfd = 0;
341       free (ofilename);
342     }
343 }
344 
345 void
346 ar_replace (struct list *list)
347 {
348   if (!obfd)
349     {
350       fprintf (stderr, _("%s: no open output archive\n"), program_name);
351       maybequit ();
352     }
353   else
354     {
355       while (list)
356 	{
357 	  /* Find this name in the archive.  */
358 	  bfd *member = obfd->archive_head;
359 	  bfd **prev = &(obfd->archive_head);
360 	  int found = 0;
361 
362 	  while (member)
363 	    {
364 	      if (FILENAME_CMP (member->filename, list->name) == 0)
365 		{
366 		  /* Found the one to replace.  */
367 		  bfd *abfd = bfd_openr (list->name, 0);
368 
369 		  if (!abfd)
370 		    {
371 		      fprintf (stderr, _("%s: can't open file %s\n"),
372 			       program_name, list->name);
373 		      maybequit ();
374 		    }
375 		  else
376 		    {
377 		      *prev = abfd;
378 		      abfd->archive_next = member->archive_next;
379 		      found = 1;
380 		    }
381 		}
382 	      else
383 		{
384 		  prev = &(member->archive_next);
385 		}
386 	      member = member->archive_next;
387 	    }
388 
389 	  if (!found)
390 	    {
391 	      bfd *abfd = bfd_openr (list->name, 0);
392 
393 	      fprintf (stderr,_("%s: can't find module file %s\n"),
394 		       program_name, list->name);
395 	      if (!abfd)
396 		{
397 		  fprintf (stderr, _("%s: can't open file %s\n"),
398 			   program_name, list->name);
399 		  maybequit ();
400 		}
401 	      else
402 		*prev = abfd;
403 	    }
404 
405 	  list = list->next;
406 	}
407     }
408 }
409 
410 /* And I added this one.  */
411 void
412 ar_list (void)
413 {
414   if (!obfd)
415     {
416       fprintf (stderr, _("%s: no open output archive\n"), program_name);
417       maybequit ();
418     }
419   else
420     {
421       bfd *abfd;
422 
423       outfile = stdout;
424       verbose =1 ;
425       printf (_("Current open archive is %s\n"), bfd_get_filename (obfd));
426 
427       for (abfd = obfd->archive_head;
428 	   abfd != (bfd *)NULL;
429 	   abfd = abfd->archive_next)
430 	ar_directory_doer (abfd, (bfd *) NULL);
431     }
432 }
433 
434 void
435 ar_end (void)
436 {
437   if (obfd)
438     {
439       bfd_cache_close (obfd);
440       unlink (bfd_get_filename (obfd));
441     }
442 }
443 
444 void
445 ar_extract (struct list *list)
446 {
447   if (!obfd)
448     {
449       fprintf (stderr, _("%s: no open archive\n"), program_name);
450       maybequit ();
451     }
452   else
453     {
454       while (list)
455 	{
456 	  /* Find this name in the archive.  */
457 	  bfd *member = obfd->archive_head;
458 	  int found = 0;
459 
460 	  while (member && !found)
461 	    {
462 	      if (FILENAME_CMP (member->filename, list->name) == 0)
463 		{
464 		  extract_file (member);
465 		  found = 1;
466 		}
467 
468 	      member = member->archive_next;
469 	    }
470 
471 	  if (!found)
472 	    {
473 	      bfd_openr (list->name, 0);
474 	      fprintf (stderr, _("%s: can't find module file %s\n"),
475 		       program_name, list->name);
476 	    }
477 
478 	  list = list->next;
479 	}
480     }
481 }
482