binutils/arsup.c

   1 /* arsup.c - Archive support for MRI compatibility
   2    Copyright (C) 1992-2015 Free Software Foundation, Inc.
   3
   4    This file is part of GNU Binutils.
   5
   6    This program 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 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program 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 this program; if not, write to the Free Software
  18    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  19    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 "sysdep.h"
  29 #include "bfd.h"
  30 #include "libiberty.h"
  31 #include "filenames.h"
  32 #include "bucomm.h"
  33 #include "arsup.h"
  34
  35 static void map_over_list
  36   (bfd *, void (*function) (bfd *, bfd *), struct list *);
  37 static void ar_directory_doer (bfd *, bfd *);
  38 static void ar_addlib_doer (bfd *, bfd *);
  39
  40 extern int verbose;
  41 extern int deterministic;
  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       if (deterministic > 0)
 338         obfd->flags |= BFD_DETERMINISTIC_OUTPUT;
 339
 340       bfd_close (obfd);
 341
 342       smart_rename (ofilename, real_name, 0);
 343       obfd = 0;
 344       free (ofilename);
 345     }
 346 }
 347
 348 void
 349 ar_replace (struct list *list)
 350 {
 351   if (!obfd)
 352     {
 353       fprintf (stderr, _("%s: no open output archive\n"), program_name);
 354       maybequit ();
 355     }
 356   else
 357     {
 358       while (list)
 359         {
 360           /* Find this name in the archive.  */
 361           bfd *member = obfd->archive_head;
 362           bfd **prev = &(obfd->archive_head);
 363           int found = 0;
 364
 365           while (member)
 366             {
 367               if (FILENAME_CMP (member->filename, list->name) == 0)
 368                 {
 369                   /* Found the one to replace.  */
 370                   bfd *abfd = bfd_openr (list->name, 0);
 371
 372                   if (!abfd)
 373                     {
 374                       fprintf (stderr, _("%s: can't open file %s\n"),
 375                                program_name, list->name);
 376                       maybequit ();
 377                     }
 378                   else
 379                     {
 380                       *prev = abfd;
 381                       abfd->archive_next = member->archive_next;
 382                       found = 1;
 383                     }
 384                 }
 385               else
 386                 {
 387                   prev = &(member->archive_next);
 388                 }
 389               member = member->archive_next;
 390             }
 391
 392           if (!found)
 393             {
 394               bfd *abfd = bfd_openr (list->name, 0);
 395
 396               fprintf (stderr,_("%s: can't find module file %s\n"),
 397                        program_name, list->name);
 398               if (!abfd)
 399                 {
 400                   fprintf (stderr, _("%s: can't open file %s\n"),
 401                            program_name, list->name);
 402                   maybequit ();
 403                 }
 404               else
 405                 *prev = abfd;
 406             }
 407
 408           list = list->next;
 409         }
 410     }
 411 }
 412
 413 /* And I added this one.  */
 414 void
 415 ar_list (void)
 416 {
 417   if (!obfd)
 418     {
 419       fprintf (stderr, _("%s: no open output archive\n"), program_name);
 420       maybequit ();
 421     }
 422   else
 423     {
 424       bfd *abfd;
 425
 426       outfile = stdout;
 427       verbose =1 ;
 428       printf (_("Current open archive is %s\n"), bfd_get_filename (obfd));
 429
 430       for (abfd = obfd->archive_head;
 431            abfd != (bfd *)NULL;
 432            abfd = abfd->archive_next)
 433         ar_directory_doer (abfd, (bfd *) NULL);
 434     }
 435 }
 436
 437 void
 438 ar_end (void)
 439 {
 440   if (obfd)
 441     {
 442       bfd_cache_close (obfd);
 443       unlink (bfd_get_filename (obfd));
 444     }
 445 }
 446
 447 void
 448 ar_extract (struct list *list)
 449 {
 450   if (!obfd)
 451     {
 452       fprintf (stderr, _("%s: no open archive\n"), program_name);
 453       maybequit ();
 454     }
 455   else
 456     {
 457       while (list)
 458         {
 459           /* Find this name in the archive.  */
 460           bfd *member = obfd->archive_head;
 461           int found = 0;
 462
 463           while (member && !found)
 464             {
 465               if (FILENAME_CMP (member->filename, list->name) == 0)
 466                 {
 467                   extract_file (member);
 468                   found = 1;
 469                 }
 470
 471               member = member->archive_next;
 472             }
 473
 474           if (!found)
 475             {
 476               bfd_openr (list->name, 0);
 477               fprintf (stderr, _("%s: can't find module file %s\n"),
 478                        program_name, list->name);
 479             }
 480
 481           list = list->next;
 482         }
 483     }
 484 }