tools/widl/widl.c

   1 /*
   2  * IDL Compiler
   3  *
   4  * Copyright 2002 Ove Kaaven
   5  * based on WRC code by Bertho Stultiens
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library 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 GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <errno.h>
  26 #include <limits.h>
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #ifdef HAVE_UNISTD_H
  30 # include <unistd.h>
  31 #endif
  32 #include <string.h>
  33 #include <assert.h>
  34 #include <ctype.h>
  35 #include <signal.h>
  36 #ifdef HAVE_GETOPT_H
  37 # include <getopt.h>
  38 #endif
  39
  40 #include "widl.h"
  41 #include "utils.h"
  42 #include "parser.h"
  43 #include "wine/wpp.h"
  44 #include "header.h"
  45
  46 /* future options to reserve characters for: */
  47 /* a = alignment of structures */
  48 /* A = ACF input filename */
  49 /* J = do not search standard include path */
  50 /* O = generate interpreted stubs */
  51 /* w = select win16/win32 output (?) */
  52
  53 static const char usage[] =
  54 "Usage: widl [options...] infile.idl\n"
  55 "   or: widl [options...] --dlldata-only name1 [name2...]\n"
  56 "   -c          Generate client stub\n"
  57 "   -C file     Name of client stub file (default is infile_c.c)\n"
  58 "   -d n        Set debug level to 'n'\n"
  59 "   -D id[=val] Define preprocessor identifier id=val\n"
  60 "   --dlldata=file  Name of the dlldata file (default is dlldata.c)\n"
  61 "   -E          Preprocess only\n"
  62 "   -h          Generate headers\n"
  63 "   -H file     Name of header file (default is infile.h)\n"
  64 "   -I path     Set include search dir to path (multiple -I allowed)\n"
  65 "   --local-stubs=file  Write empty stubs for call_as/local methods to file\n"
  66 "   -N          Do not preprocess input\n"
  67 "   --oldnames  Use old naming conventions\n"
  68 "   -p          Generate proxy\n"
  69 "   -P file     Name of proxy file (default is infile_p.c)\n"
  70 "   --prefix-all=p  Prefix names of client stubs / server functions with 'p'\n"
  71 "   --prefix-client=p  Prefix names of client stubs with 'p'\n"
  72 "   --prefix-server=p  Prefix names of server functions with 'p'\n"
  73 "   -s          Generate server stub\n"
  74 "   -S file     Name of server stub file (default is infile_s.c)\n"
  75 "   -t          Generate typelib\n"
  76 "   -T file     Name of typelib file (default is infile.tlb)\n"
  77 "   -u          Generate interface identifiers file\n"
  78 "   -U file     Name of interface identifiers file (default is infile_i.c)\n"
  79 "   -V          Print version and exit\n"
  80 "   -W          Enable pedantic warnings\n"
  81 "Debug level 'n' is a bitmask with following meaning:\n"
  82 "    * 0x01 Tell which resource is parsed (verbose mode)\n"
  83 "    * 0x02 Dump internal structures\n"
  84 "    * 0x04 Create a parser trace (yydebug=1)\n"
  85 "    * 0x08 Preprocessor messages\n"
  86 "    * 0x10 Preprocessor lex messages\n"
  87 "    * 0x20 Preprocessor yacc trace\n"
  88 ;
  89
  90 static const char version_string[] = "Wine IDL Compiler version " PACKAGE_VERSION "\n"
  91                         "Copyright 2002 Ove Kaaven\n";
  92
  93 int win32 = 1;
  94 int debuglevel = DEBUGLEVEL_NONE;
  95 int parser_debug, yy_flex_debug;
  96
  97 int pedantic = 0;
  98 int do_everything = 1;
  99 int preprocess_only = 0;
 100 int do_header = 0;
 101 int do_typelib = 0;
 102 int do_proxies = 0;
 103 int do_client = 0;
 104 int do_server = 0;
 105 int do_idfile = 0;
 106 int do_dlldata = 0;
 107 int no_preprocess = 0;
 108 int old_names = 0;
 109
 110 char *input_name;
 111 char *header_name;
 112 char *local_stubs_name;
 113 char *header_token;
 114 char *typelib_name;
 115 char *dlldata_name;
 116 char *proxy_name;
 117 char *proxy_token;
 118 char *client_name;
 119 char *client_token;
 120 char *server_name;
 121 char *server_token;
 122 char *idfile_name;
 123 char *idfile_token;
 124 char *temp_name;
 125 const char *prefix_client = "";
 126 const char *prefix_server = "";
 127
 128 int line_number = 1;
 129
 130 FILE *header;
 131 FILE *local_stubs;
 132 FILE *proxy;
 133 FILE *idfile;
 134
 135 time_t now;
 136
 137 enum {
 138     OLDNAMES_OPTION = CHAR_MAX + 1,
 139     DLLDATA_OPTION,
 140     DLLDATA_ONLY_OPTION,
 141     LOCAL_STUBS_OPTION,
 142     PREFIX_ALL_OPTION,
 143     PREFIX_CLIENT_OPTION,
 144     PREFIX_SERVER_OPTION
 145 };
 146
 147 static const char short_options[] =
 148     "cC:d:D:EhH:I:NpP:sS:tT:uU:VW";
 149 static const struct option long_options[] = {
 150     { "dlldata", required_argument, 0, DLLDATA_OPTION },
 151     { "dlldata-only", no_argument, 0, DLLDATA_ONLY_OPTION },
 152     { "local-stubs", required_argument, 0, LOCAL_STUBS_OPTION },
 153     { "oldnames", no_argument, 0, OLDNAMES_OPTION },
 154     { "prefix-all", required_argument, 0, PREFIX_ALL_OPTION },
 155     { "prefix-client", required_argument, 0, PREFIX_CLIENT_OPTION },
 156     { "prefix-server", required_argument, 0, PREFIX_SERVER_OPTION },
 157     { 0, 0, 0, 0 }
 158 };
 159
 160 static void rm_tempfile(void);
 161
 162 static char *make_token(const char *name)
 163 {
 164   char *token;
 165   char *slash;
 166   int i;
 167
 168   slash = strrchr(name, '/');
 169   if (slash) name = slash + 1;
 170
 171   token = xstrdup(name);
 172   for (i=0; token[i]; i++) {
 173     if (!isalnum(token[i])) token[i] = '_';
 174     else token[i] = toupper(token[i]);
 175   }
 176   return token;
 177 }
 178
 179 /* duplicate a basename into a valid C token */
 180 static char *dup_basename_token(const char *name, const char *ext)
 181 {
 182     char *p, *ret = dup_basename( name, ext );
 183     /* map invalid characters to '_' */
 184     for (p = ret; *p; p++) if (!isalnum(*p)) *p = '_';
 185     return ret;
 186 }
 187
 188 /* clean things up when aborting on a signal */
 189 static void exit_on_signal( int sig )
 190 {
 191     exit(1);  /* this will call the atexit functions */
 192 }
 193
 194 static void set_everything(int x)
 195 {
 196   do_header = x;
 197   do_typelib = x;
 198   do_proxies = x;
 199   do_client = x;
 200   do_server = x;
 201   do_idfile = x;
 202   do_dlldata = x;
 203 }
 204
 205 static void start_cplusplus_guard(FILE *fp)
 206 {
 207   fprintf(fp, "#ifdef __cplusplus\n");
 208   fprintf(fp, "extern \"C\" {\n");
 209   fprintf(fp, "#endif\n\n");
 210 }
 211
 212 static void end_cplusplus_guard(FILE *fp)
 213 {
 214   fprintf(fp, "#ifdef __cplusplus\n");
 215   fprintf(fp, "}\n");
 216   fprintf(fp, "#endif\n\n");
 217 }
 218
 219 typedef struct
 220 {
 221   char *filename;
 222   struct list link;
 223 } filename_node_t;
 224
 225 static void add_filename_node(struct list *list, const char *name)
 226 {
 227   filename_node_t *node = xmalloc(sizeof *node);
 228   node->filename = xstrdup(name);
 229   list_add_tail(list, &node->link);
 230 }
 231
 232 static void free_filename_nodes(struct list *list)
 233 {
 234   filename_node_t *node, *next;
 235   LIST_FOR_EACH_ENTRY_SAFE(node, next, list, filename_node_t, link) {
 236     list_remove(&node->link);
 237     free(node->filename);
 238     free(node);
 239   }
 240 }
 241
 242 static void write_dlldata_list(struct list *filenames)
 243 {
 244   FILE *dlldata;
 245   filename_node_t *node;
 246
 247   dlldata = fopen(dlldata_name, "w");
 248   if (!dlldata)
 249     error("couldn't open %s: %s\n", dlldata_name, strerror(errno));
 250
 251   fprintf(dlldata, "/*** Autogenerated by WIDL %s ", PACKAGE_VERSION);
 252   fprintf(dlldata, "- Do not edit ***/\n\n");
 253   fprintf(dlldata, "#include <objbase.h>\n");
 254   fprintf(dlldata, "#include <rpcproxy.h>\n\n");
 255   start_cplusplus_guard(dlldata);
 256
 257   LIST_FOR_EACH_ENTRY(node, filenames, filename_node_t, link)
 258     fprintf(dlldata, "EXTERN_PROXY_FILE(%s)\n", node->filename);
 259
 260   fprintf(dlldata, "\nPROXYFILE_LIST_START\n");
 261   fprintf(dlldata, "/* Start of list */\n");
 262   LIST_FOR_EACH_ENTRY(node, filenames, filename_node_t, link)
 263     fprintf(dlldata, "  REFERENCE_PROXY_FILE(%s),\n", node->filename);
 264   fprintf(dlldata, "/* End of list */\n");
 265   fprintf(dlldata, "PROXYFILE_LIST_END\n\n");
 266
 267   fprintf(dlldata, "DLLDATA_ROUTINES(aProxyFileList, GET_DLL_CLSID)\n\n");
 268   end_cplusplus_guard(dlldata);
 269   fclose(dlldata);
 270 }
 271
 272 static char *eat_space(char *s)
 273 {
 274   while (isspace((unsigned char) *s))
 275     ++s;
 276   return s;
 277 }
 278
 279 void write_dlldata(ifref_list_t *ifaces)
 280 {
 281   struct list filenames = LIST_INIT(filenames);
 282   filename_node_t *node;
 283   FILE *dlldata;
 284
 285   if (!do_dlldata || !need_proxy_file(ifaces))
 286     return;
 287
 288   dlldata = fopen(dlldata_name, "r");
 289   if (dlldata) {
 290     static char marker[] = "REFERENCE_PROXY_FILE";
 291     char *line = NULL;
 292     size_t len = 0;
 293
 294     while (widl_getline(&line, &len, dlldata)) {
 295       char *start, *end;
 296       start = eat_space(line);
 297       if (strncmp(start, marker, sizeof marker - 1) == 0) {
 298         start = eat_space(start + sizeof marker - 1);
 299         if (*start != '(')
 300           continue;
 301         end = start = eat_space(start + 1);
 302         while (*end && *end != ')')
 303           ++end;
 304         if (*end != ')')
 305           continue;
 306         while (isspace((unsigned char) end[-1]))
 307           --end;
 308         *end = '\0';
 309         if (start < end)
 310           add_filename_node(&filenames, start);
 311       }
 312     }
 313
 314     if (ferror(dlldata))
 315       error("couldn't read from %s: %s\n", dlldata_name, strerror(errno));
 316
 317     free(line);
 318     fclose(dlldata);
 319   }
 320
 321   LIST_FOR_EACH_ENTRY(node, &filenames, filename_node_t, link)
 322     if (strcmp(proxy_token, node->filename) == 0) {
 323       /* We're already in the list, no need to regenerate this file.  */
 324       free_filename_nodes(&filenames);
 325       return;
 326     }
 327
 328   add_filename_node(&filenames, proxy_token);
 329   write_dlldata_list(&filenames);
 330   free_filename_nodes(&filenames);
 331 }
 332
 333 int main(int argc,char *argv[])
 334 {
 335   extern char* optarg;
 336   extern int   optind;
 337   int optc;
 338   int ret = 0;
 339   int opti = 0;
 340
 341   signal( SIGTERM, exit_on_signal );
 342   signal( SIGINT, exit_on_signal );
 343 #ifdef SIGHUP
 344   signal( SIGHUP, exit_on_signal );
 345 #endif
 346
 347   now = time(NULL);
 348
 349   while((optc = getopt_long(argc, argv, short_options, long_options, &opti)) != EOF) {
 350     switch(optc) {
 351     case DLLDATA_OPTION:
 352       dlldata_name = xstrdup(optarg);
 353       break;
 354     case DLLDATA_ONLY_OPTION:
 355       do_everything = 0;
 356       do_dlldata = 1;
 357       break;
 358     case LOCAL_STUBS_OPTION:
 359       do_everything = 0;
 360       local_stubs_name = xstrdup(optarg);
 361       break;
 362     case OLDNAMES_OPTION:
 363       old_names = 1;
 364       break;
 365     case PREFIX_ALL_OPTION:
 366       prefix_client = xstrdup(optarg);
 367       prefix_server = xstrdup(optarg);
 368       break;
 369     case PREFIX_CLIENT_OPTION:
 370       prefix_client = xstrdup(optarg);
 371       break;
 372     case PREFIX_SERVER_OPTION:
 373       prefix_server = xstrdup(optarg);
 374       break;
 375     case 'c':
 376       do_everything = 0;
 377       do_client = 1;
 378       break;
 379     case 'C':
 380       client_name = xstrdup(optarg);
 381       break;
 382     case 'd':
 383       debuglevel = strtol(optarg, NULL, 0);
 384       break;
 385     case 'D':
 386       wpp_add_cmdline_define(optarg);
 387       break;
 388     case 'E':
 389       do_everything = 0;
 390       preprocess_only = 1;
 391       break;
 392     case 'h':
 393       do_everything = 0;
 394       do_header = 1;
 395       break;
 396     case 'H':
 397       header_name = xstrdup(optarg);
 398       break;
 399     case 'I':
 400       wpp_add_include_path(optarg);
 401       break;
 402     case 'N':
 403       no_preprocess = 1;
 404       break;
 405     case 'p':
 406       do_everything = 0;
 407       do_proxies = 1;
 408       break;
 409     case 'P':
 410       proxy_name = xstrdup(optarg);
 411       break;
 412     case 's':
 413       do_everything = 0;
 414       do_server = 1;
 415       break;
 416     case 'S':
 417       server_name = xstrdup(optarg);
 418       break;
 419     case 't':
 420       do_everything = 0;
 421       do_typelib = 1;
 422       break;
 423     case 'T':
 424       typelib_name = xstrdup(optarg);
 425       break;
 426     case 'u':
 427       do_everything = 0;
 428       do_idfile = 1;
 429       break;
 430     case 'U':
 431       idfile_name = xstrdup(optarg);
 432       break;
 433     case 'V':
 434       printf("%s", version_string);
 435       return 0;
 436     case 'W':
 437       pedantic = 1;
 438       break;
 439     default:
 440       fprintf(stderr, "%s", usage);
 441       return 1;
 442     }
 443   }
 444
 445   if(do_everything) {
 446     set_everything(TRUE);
 447   }
 448
 449   if (!dlldata_name && do_dlldata)
 450     dlldata_name = xstrdup("dlldata.c");
 451
 452   if(optind < argc) {
 453     if (do_dlldata && !do_everything) {
 454       struct list filenames = LIST_INIT(filenames);
 455       for ( ; optind < argc; ++optind)
 456         add_filename_node(&filenames, argv[optind]);
 457
 458       write_dlldata_list(&filenames);
 459       free_filename_nodes(&filenames);
 460       return 0;
 461     }
 462     else if (optind != argc - 1) {
 463       fprintf(stderr, "%s", usage);
 464       return 1;
 465     }
 466     else
 467       input_name = xstrdup(argv[optind]);
 468   }
 469   else {
 470     fprintf(stderr, "%s", usage);
 471     return 1;
 472   }
 473
 474   if(debuglevel)
 475   {
 476     setbuf(stdout,0);
 477     setbuf(stderr,0);
 478   }
 479
 480   parser_debug = debuglevel & DEBUGLEVEL_TRACE ? 1 : 0;
 481   yy_flex_debug = debuglevel & DEBUGLEVEL_TRACE ? 1 : 0;
 482
 483   wpp_set_debug( (debuglevel & DEBUGLEVEL_PPLEX) != 0,
 484                  (debuglevel & DEBUGLEVEL_PPTRACE) != 0,
 485                  (debuglevel & DEBUGLEVEL_PPMSG) != 0 );
 486
 487   if (!header_name) {
 488     header_name = dup_basename(input_name, ".idl");
 489     strcat(header_name, ".h");
 490   }
 491
 492   if (!typelib_name && do_typelib) {
 493     typelib_name = dup_basename(input_name, ".idl");
 494     strcat(typelib_name, ".tlb");
 495   }
 496
 497   if (!proxy_name && do_proxies) {
 498     proxy_name = dup_basename(input_name, ".idl");
 499     strcat(proxy_name, "_p.c");
 500   }
 501
 502   if (!client_name && do_client) {
 503     client_name = dup_basename(input_name, ".idl");
 504     strcat(client_name, "_c.c");
 505   }
 506
 507   if (!server_name && do_server) {
 508     server_name = dup_basename(input_name, ".idl");
 509     strcat(server_name, "_s.c");
 510   }
 511
 512   if (!idfile_name && do_idfile) {
 513     idfile_name = dup_basename(input_name, ".idl");
 514     strcat(idfile_name, "_i.c");
 515   }
 516
 517   if (do_proxies) proxy_token = dup_basename_token(proxy_name,"_p.c");
 518   if (do_client) client_token = dup_basename_token(client_name,"_c.c");
 519   if (do_server) server_token = dup_basename_token(server_name,"_s.c");
 520
 521   wpp_add_cmdline_define("__WIDL__");
 522
 523   atexit(rm_tempfile);
 524   if (!no_preprocess)
 525   {
 526     chat("Starting preprocess\n");
 527
 528     if (!preprocess_only)
 529     {
 530         ret = wpp_parse_temp( input_name, header_name, &temp_name );
 531     }
 532     else
 533     {
 534         ret = wpp_parse( input_name, stdout );
 535     }
 536
 537     if(ret) exit(1);
 538     if(preprocess_only) exit(0);
 539     if(!(parser_in = fopen(temp_name, "r"))) {
 540       fprintf(stderr, "Could not open %s for input\n", temp_name);
 541       return 1;
 542     }
 543   }
 544   else {
 545     if(!(parser_in = fopen(input_name, "r"))) {
 546       fprintf(stderr, "Could not open %s for input\n", input_name);
 547       return 1;
 548     }
 549   }
 550
 551   if(do_header) {
 552     header_token = make_token(header_name);
 553
 554     if(!(header = fopen(header_name, "w"))) {
 555       fprintf(stderr, "Could not open %s for output\n", header_name);
 556       return 1;
 557     }
 558     fprintf(header, "/*** Autogenerated by WIDL %s from %s - Do not edit ***/\n", PACKAGE_VERSION, input_name);
 559     fprintf(header, "#include <rpc.h>\n" );
 560     fprintf(header, "#include <rpcndr.h>\n\n" );
 561     fprintf(header, "#ifndef __WIDL_%s\n", header_token);
 562     fprintf(header, "#define __WIDL_%s\n", header_token);
 563     start_cplusplus_guard(header);
 564   }
 565
 566   if (local_stubs_name) {
 567     local_stubs = fopen(local_stubs_name, "w");
 568     if (!local_stubs) {
 569       fprintf(stderr, "Could not open %s for output\n", local_stubs_name);
 570       return 1;
 571     }
 572     fprintf(local_stubs, "/* call_as/local stubs for %s */\n\n", input_name);
 573     fprintf(local_stubs, "#include <objbase.h>\n");
 574     fprintf(local_stubs, "#include \"%s\"\n\n", header_name);
 575   }
 576
 577   if (do_idfile) {
 578     idfile_token = make_token(idfile_name);
 579
 580     idfile = fopen(idfile_name, "w");
 581     if (! idfile) {
 582       fprintf(stderr, "Could not open %s for output\n", idfile_name);
 583       return 1;
 584     }
 585
 586     fprintf(idfile, "/*** Autogenerated by WIDL %s ", PACKAGE_VERSION);
 587     fprintf(idfile, "from %s - Do not edit ***/\n\n", input_name);
 588     fprintf(idfile, "#include <rpc.h>\n");
 589     fprintf(idfile, "#include <rpcndr.h>\n\n");
 590     fprintf(idfile, "#include <initguid.h>\n\n");
 591     start_cplusplus_guard(idfile);
 592   }
 593
 594   init_types();
 595   ret = parser_parse();
 596
 597   if(do_header) {
 598     fprintf(header, "/* Begin additional prototypes for all interfaces */\n");
 599     fprintf(header, "\n");
 600     write_user_types();
 601     write_context_handle_rundowns();
 602     fprintf(header, "\n");
 603     fprintf(header, "/* End additional prototypes */\n");
 604     fprintf(header, "\n");
 605     end_cplusplus_guard(header);
 606     fprintf(header, "#endif /* __WIDL_%s */\n", header_token);
 607     fclose(header);
 608   }
 609
 610   if (local_stubs) {
 611     fclose(local_stubs);
 612   }
 613
 614   if (do_idfile) {
 615     fprintf(idfile, "\n");
 616     end_cplusplus_guard(idfile);
 617
 618     fclose(idfile);
 619   }
 620
 621   fclose(parser_in);
 622
 623   if(ret) {
 624     exit(1);
 625   }
 626
 627   /* Everything has been done successfully, don't delete any files.  */
 628   set_everything(FALSE);
 629   local_stubs_name = NULL;
 630
 631   return 0;
 632 }
 633
 634 static void rm_tempfile(void)
 635 {
 636   abort_import();
 637   if(temp_name)
 638     unlink(temp_name);
 639   if (do_header)
 640     unlink(header_name);
 641   if (local_stubs_name)
 642     unlink(local_stubs_name);
 643   if (do_client)
 644     unlink(client_name);
 645   if (do_server)
 646     unlink(server_name);
 647   if (do_idfile)
 648     unlink(idfile_name);
 649   if (do_proxies)
 650     unlink(proxy_name);
 651   if (do_typelib)
 652     unlink(typelib_name);
 653 }