tools/winedump/main.c

   1 /*
   2  *  Option processing and main()
   3  *
   4  *  Copyright 2000 Jon Griffiths
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library 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 GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include "winedump.h"
  24
  25 _globals globals; /* All global variables */
  26
  27
  28 static void do_include (const char *arg)
  29 {
  30   if (!globals.directory)
  31     globals.directory = xstrdup(arg);
  32   else
  33     globals.directory = strmake( "%s %s", globals.directory, arg );
  34   globals.do_code = TRUE;
  35 }
  36
  37
  38 static inline const char* strip_ext (const char *str)
  39 {
  40   int len = strlen(str);
  41   if (len>4 && strcmp(str+len-4,".dll") == 0)
  42     return str_substring (str, str+len-4);
  43   else
  44     return xstrdup (str);
  45 }
  46
  47
  48 static void do_name (const char *arg)
  49 {
  50   globals.dll_name = strip_ext (arg);
  51 }
  52
  53
  54 static void do_spec (const char *arg)
  55 {
  56     if (globals.mode != NONE) fatal("Only one mode can be specified\n");
  57     globals.mode = SPEC;
  58 }
  59
  60
  61 static void do_demangle (const char *arg)
  62 {
  63     if (globals.mode != NONE) fatal("Only one mode can be specified\n");
  64     globals.mode = DMGL;
  65     globals.do_code = TRUE;
  66     globals.do_demangle = TRUE;
  67 }
  68
  69
  70 static void do_dump (const char *arg)
  71 {
  72     if (globals.mode != NONE) fatal("Only one mode can be specified\n");
  73     globals.mode = DUMP;
  74     globals.do_code = TRUE;
  75 }
  76
  77
  78 static void do_code (const char *arg)
  79 {
  80   globals.do_code = TRUE;
  81 }
  82
  83
  84 static void do_trace (const char *arg)
  85 {
  86   globals.do_trace = TRUE;
  87   globals.do_code = TRUE;
  88 }
  89
  90
  91 static void do_forward (const char *arg)
  92 {
  93   globals.forward_dll = arg;
  94   globals.do_trace = TRUE;
  95   globals.do_code = TRUE;
  96 }
  97
  98 static void do_document (const char *arg)
  99 {
 100   globals.do_documentation = TRUE;
 101 }
 102
 103 static void do_cdecl (const char *arg)
 104 {
 105   globals.do_cdecl = TRUE;
 106 }
 107
 108
 109 static void do_quiet (const char *arg)
 110 {
 111   globals.do_quiet = TRUE;
 112 }
 113
 114
 115 static void do_start (const char *arg)
 116 {
 117   globals.start_ordinal = atoi (arg);
 118   if (!globals.start_ordinal)
 119     fatal ("Invalid -s option (must be numeric)");
 120 }
 121
 122
 123 static void do_end (const char *arg)
 124 {
 125   globals.end_ordinal = atoi (arg);
 126   if (!globals.end_ordinal)
 127     fatal ("Invalid -e option (must be numeric)");
 128 }
 129
 130
 131 static void do_symfile (const char *arg)
 132 {
 133   FILE *f;
 134   char symstring[256];    /* keep count with "%<width>s" below */
 135   search_symbol *symbolp,**symbolptail = &globals.search_symbol;
 136
 137   if (!(f = fopen(arg, "rt")))
 138     fatal ("Cannot open <symfile>");
 139   while (1 == fscanf(f, "%255s", symstring))    /* keep count with [<width>] above */
 140   {
 141     symstring[sizeof(symstring)-1] = '\0';
 142     symbolp = xmalloc(sizeof(*symbolp) + strlen(symstring));
 143     strcpy(symbolp->symbolname, symstring);
 144     symbolp->found = FALSE;
 145     symbolp->next = NULL;
 146     *symbolptail = symbolp;
 147     symbolptail = &symbolp->next;
 148   }
 149   if (fclose(f))
 150     fatal ("Cannot close <symfile>");
 151 }
 152
 153
 154 static void do_verbose (const char *arg)
 155 {
 156   globals.do_verbose = TRUE;
 157 }
 158
 159
 160 static void do_symdmngl (const char *arg)
 161 {
 162     globals.do_demangle = TRUE;
 163 }
 164
 165 static void do_dumphead (const char *arg)
 166 {
 167     globals.do_dumpheader = TRUE;
 168 }
 169
 170 static void do_dumpsect (const char* arg)
 171 {
 172     unsigned count = 2;
 173     char* p;
 174     const char** out;
 175
 176     for (p = (char*)arg; (p = strchr(p, ',')) != NULL; p++, count++);
 177     out = malloc(count * sizeof(char*));
 178     globals.dumpsect = out;
 179     count = 0;
 180     p = strdup(arg);
 181     for (;;)
 182     {
 183         out[count++] = p;
 184         p = strchr(p, ',');
 185         if (!p) break;
 186         *p++ = '\0';
 187     }
 188     out[count] = NULL;
 189 }
 190
 191 static void do_rawdebug (const char *arg)
 192 {
 193     globals.do_debug = TRUE;
 194 }
 195
 196 static void do_dumpall(const char *arg)
 197 {
 198     globals.do_dumpheader = TRUE;
 199     globals.do_dump_rawdata = TRUE;
 200     globals.do_symbol_table = TRUE;
 201     do_dumpsect ("ALL");
 202 }
 203
 204 static void do_symtable(const char* arg)
 205 {
 206     globals.do_symbol_table = TRUE;
 207 }
 208
 209 struct my_option
 210 {
 211   const char *name;
 212   Mode mode;
 213   int   has_arg;
 214   void  (*func)(const char *arg);
 215   const char *usage;
 216 };
 217
 218 static const struct my_option option_table[] = {
 219   {"--help",NONE, 0, do_usage,    "--help          Display this help message"},
 220   {"-h",    NONE, 0, do_usage,    "-h              Synonym for --help"},
 221   {"-?",    NONE, 0, do_usage,    "-?              Synonym for --help"},
 222   {"dump",  DUMP, 0, do_dump,     "dump <file>     Dump the contents of 'file' (dll, exe, lib...)"},
 223   {"-C",    DUMP, 0, do_symdmngl, "-C              Turn on symbol demangling"},
 224   {"-f",    DUMP, 0, do_dumphead, "-f              Dump file header information"},
 225   {"-G",    DUMP, 0, do_rawdebug, "-G              Dump raw debug information"},
 226   {"-j",    DUMP, 1, do_dumpsect, "-j <sect_name>  Dump the content of section 'sect_name'\n"
 227                                   "                        (use '-j sect_name,sect_name2' to dump several sections)\n"
 228                                   "                        for NE: export, resource\n"
 229                                   "                        for PE: import, export, debug, resource, tls, loadcfg, clr, reloc, dynreloc, except, apiset\n"
 230                                   "                        for PDB: PDB, TPI, DBI, IPI, public, image\n"
 231                                   "                                 and suboptions: hash (PDB, TPI, TPI, DBI, public) and line (DBI)"},
 232   {"-t",    DUMP, 0, do_symtable, "-t              Dump symbol table"},
 233   {"-x",    DUMP, 0, do_dumpall,  "-x              Dump everything"},
 234   {"sym",   DMGL, 0, do_demangle, "sym <sym>       Demangle C++ symbol <sym> and exit"},
 235   {"spec",  SPEC, 0, do_spec,     "spec <dll>      Use 'dll' for input file and generate implementation code"},
 236   {"-I",    SPEC, 1, do_include,  "-I <dir>        Look for prototypes in 'dir' (implies -c)"},
 237   {"-c",    SPEC, 0, do_code,     "-c              Generate skeleton code (requires -I)"},
 238   {"-t",    SPEC, 0, do_trace,    "-t              TRACE arguments (implies -c)"},
 239   {"-f",    SPEC, 1, do_forward,  "-f <dll>        Forward calls to 'dll' (implies -t)"},
 240   {"-D",    SPEC, 0, do_document, "-D              Generate documentation"},
 241   {"-o",    SPEC, 1, do_name,     "-o <name>       Set the output dll name (default: dll). Note: strips .dll extensions"},
 242   {"-C",    SPEC, 0, do_cdecl,    "-C              Assume __cdecl calls (default: __stdcall)"},
 243   {"-s",    SPEC, 1, do_start,    "-s <num>        Start prototype search after symbol 'num'"},
 244   {"-e",    SPEC, 1, do_end,      "-e <num>        End prototype search after symbol 'num'"},
 245   {"-S",    SPEC, 1, do_symfile,  "-S <symfile>    Search only prototype names found in 'symfile'"},
 246   {"-q",    SPEC, 0, do_quiet,    "-q              Don't show progress (quiet)."},
 247   {"-v",    SPEC, 0, do_verbose,  "-v              Show lots of detail while working (verbose)."},
 248   {NULL,    NONE, 0, NULL,        NULL}
 249 };
 250
 251 void do_usage (const char *arg)
 252 {
 253     const struct my_option *opt;
 254     printf ("Usage: winedump [-h | sym <sym> | spec <dll> | dump <file>]\n");
 255     printf ("Mode options (can be put as the mode (sym/spec/dump...) is declared):\n");
 256     printf ("   When used in --help mode\n");
 257     for (opt = option_table; opt->name; opt++)
 258         if (opt->mode == NONE)
 259             printf ("      %s\n", opt->usage);
 260     printf ("   When used in sym mode\n");
 261     for (opt = option_table; opt->name; opt++)
 262         if (opt->mode == DMGL)
 263             printf ("      %s\n", opt->usage);
 264     printf ("   When used in spec mode\n");
 265     for (opt = option_table; opt->name; opt++)
 266         if (opt->mode == SPEC)
 267             printf ("      %s\n", opt->usage);
 268     printf ("   When used in dump mode\n");
 269     for (opt = option_table; opt->name; opt++)
 270         if (opt->mode == DUMP)
 271             printf ("      %s\n", opt->usage);
 272
 273     puts ("");
 274     exit (1);
 275 }
 276
 277
 278 /*******************************************************************
 279  *          parse_cmdline
 280  *
 281  * Parse options from the argv array
 282  */
 283 static void parse_cmdline (char *argv[])
 284 {
 285   const struct my_option *opt;
 286   char *const *ptr;
 287   const char *arg = NULL;
 288
 289   ptr = argv + 1;
 290
 291   while (*ptr != NULL)
 292   {
 293     for (opt = option_table; opt->name; opt++)
 294     {
 295      if (globals.mode != NONE && opt->mode != NONE && globals.mode != opt->mode)
 296        continue;
 297      if (((opt->has_arg == 1) && !strncmp (*ptr, opt->name, strlen (opt->name))) ||
 298          ((opt->has_arg == 2) && !strcmp (*ptr, opt->name)))
 299       {
 300         arg = *ptr + strlen (opt->name);
 301         if (*arg == '\0') arg = *++ptr;
 302         break;
 303       }
 304       if (!strcmp (*ptr, opt->name))
 305       {
 306         arg = NULL;
 307         break;
 308       }
 309     }
 310
 311     if (!opt->name)
 312     {
 313         if ((*ptr)[0] == '-')
 314             fatal ("Unrecognized option");
 315         if (globals.input_name != NULL)
 316             fatal ("Only one file can be treated at once");
 317         globals.input_name = *ptr;
 318     }
 319     else if (opt->has_arg && arg != NULL)
 320         opt->func (arg);
 321     else
 322         opt->func ("");
 323
 324     ptr++;
 325   }
 326
 327   if (globals.mode == SPEC && globals.do_code && !globals.directory)
 328     fatal ("-I must be used if generating code");
 329
 330   if (VERBOSE && QUIET)
 331     fatal ("Options -v and -q are mutually exclusive");
 332
 333   if (globals.mode == NONE)
 334       do_dump("");
 335 }
 336
 337 static void set_module_name(BOOL setUC)
 338 {
 339     /* FIXME: we shouldn't assume all module extensions are .dll in winedump
 340      * in some cases, we could have some .drv for example
 341      */
 342     globals.input_module = replace_extension( get_basename( globals.input_name ), ".dll", "" );
 343     OUTPUT_UC_DLL_NAME = (setUC) ? str_toupper( xstrdup (OUTPUT_DLL_NAME)) : "";
 344 }
 345
 346 /* Marks the symbol as 'found'! */
 347 /* return: perform-search */
 348 static BOOL symbol_searched(int count, const char *symbolname)
 349 {
 350     search_symbol *search_symbol;
 351
 352     if (!(count >= globals.start_ordinal
 353           && (!globals.end_ordinal || count <= globals.end_ordinal)))
 354         return FALSE;
 355     if (!globals.search_symbol)
 356         return TRUE;
 357     for (search_symbol = globals.search_symbol;
 358          search_symbol;
 359          search_symbol = search_symbol->next)
 360     {
 361         if (!strcmp(symbolname, search_symbol->symbolname))
 362         {
 363             search_symbol->found = TRUE;
 364             return TRUE;
 365         }
 366     }
 367     return FALSE;
 368 }
 369
 370 /* return: some symbols weren't found */
 371 static BOOL symbol_finish(void)
 372 {
 373     const search_symbol *search_symbol;
 374     BOOL started = FALSE;
 375
 376     for (search_symbol = globals.search_symbol;
 377          search_symbol;
 378          search_symbol = search_symbol->next)
 379     {
 380         if (search_symbol->found)
 381             continue;
 382         if (!started)
 383         {
 384             /* stderr? not a practice here */
 385             puts("These requested <symfile> symbols weren't found:");
 386             started = TRUE;
 387         }
 388         printf("\t%s\n",search_symbol->symbolname);
 389     }
 390     return started;
 391 }
 392
 393 BOOL globals_dump_sect(const char* s)
 394 {
 395     const char** sect;
 396
 397     if (!s || !globals.dumpsect) return FALSE;
 398     for (sect = globals.dumpsect; *sect; sect++)
 399         if (!strcmp(*sect, s) || !strcmp(*sect, "ALL")) return TRUE;
 400     return FALSE;
 401 }
 402
 403 /*******************************************************************
 404  *         main
 405  */
 406 #ifdef __GNUC__
 407 int   main (int argc __attribute__((unused)), char *argv[])
 408 #else
 409 int   main (int argc, char *argv[])
 410 #endif
 411 {
 412     parsed_symbol symbol;
 413     int count = 0;
 414
 415     globals.mode = NONE;
 416     globals.forward_dll = NULL;
 417     globals.input_name = NULL;
 418     globals.dumpsect = NULL;
 419
 420     parse_cmdline (argv);
 421
 422     memset (&symbol, 0, sizeof (parsed_symbol));
 423
 424     switch (globals.mode)
 425     {
 426     case DMGL:
 427         VERBOSE = TRUE;
 428
 429         if (globals.input_name == NULL)
 430             fatal("No symbol name has been given\n");
 431         printf("%s\n", get_symbol_str(globals.input_name));
 432         break;
 433
 434     case SPEC:
 435         if (globals.input_name == NULL)
 436             fatal("No file name has been given\n");
 437         set_module_name(TRUE);
 438         if (!dll_open (globals.input_name))
 439             break;
 440
 441         output_spec_preamble ();
 442         output_header_preamble ();
 443         output_c_preamble ();
 444
 445         while (dll_next_symbol (&symbol))
 446         {
 447             count++;
 448
 449             if (NORMAL)
 450                 printf ("Export %3d - '%s' ...%c", count, symbol.symbol,
 451                         VERBOSE ? '\n' : ' ');
 452
 453             if (globals.do_code && symbol_searched(count, symbol.symbol))
 454             {
 455                 /* Attempt to get information about the symbol */
 456                 BOOL result = symbol_demangle (&symbol) || symbol_search(&symbol);
 457
 458                 if (result && symbol.function_name)
 459                     /* Clean up the prototype */
 460                     symbol_clean_string (symbol.function_name);
 461
 462                 if (NORMAL)
 463                     puts (result ? "[OK]" : "[Not Found]");
 464             }
 465             else if (NORMAL)
 466                 puts ("[Ignoring]");
 467
 468             output_spec_symbol (&symbol);
 469             output_header_symbol (&symbol);
 470             output_c_symbol (&symbol);
 471
 472             symbol_clear (&symbol);
 473         }
 474
 475         output_makefile ();
 476
 477         if (VERBOSE)
 478             puts ("Finished, Cleaning up...");
 479         if (symbol_finish())
 480             return 1;
 481         break;
 482     case NONE:
 483         do_usage(0);
 484         break;
 485     case DUMP:
 486         if (globals.input_name == NULL)
 487             fatal("No file name has been given\n");
 488         set_module_name(FALSE);
 489         dump_file(globals.input_name);
 490         break;
 491     }
 492
 493     return 0;
 494 }