binutils/arsup.c

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