misc/options.c

   1 /*
   2  * Option parsing
   3  *
   4  * Copyright 2000 Alexandre Julliard
   5  */
   6
   7 #include "config.h"
   8 #include <string.h>
   9 #include <stdlib.h>
  10
  11 #include "winbase.h"
  12 #include "winnls.h"
  13 #include "wine/library.h"
  14 #include "options.h"
  15 #include "version.h"
  16 #include "debugtools.h"
  17
  18 struct option
  19 {
  20     const char *longname;
  21     char        shortname;
  22     int         has_arg;
  23     int         inherit;
  24     void      (*func)( const char *arg );
  25     const char *usage;
  26 };
  27
  28 /* default options */
  29 struct options Options =
  30 {
  31     NULL,           /* desktopGeometry */
  32     NULL,           /* display */
  33     NULL,           /* dllFlags */
  34     FALSE,          /* synchronous */
  35     FALSE,          /* Managed windows */
  36     NULL            /* Alternate config file name */
  37 };
  38
  39 const char *argv0;       /* the original argv[0] */
  40 const char *full_argv0;  /* the full path of argv[0] (if known) */
  41
  42 static char *inherit_str;  /* options to pass to child processes */
  43
  44 static int app_argc;       /* argc/argv to pass to application */
  45 static char **app_argv;
  46 static WCHAR **app_wargv;
  47
  48 static void out_of_memory(void) WINE_NORETURN;
  49 static void out_of_memory(void)
  50 {
  51     MESSAGE( "Virtual memory exhausted\n" );
  52     ExitProcess(1);
  53 }
  54
  55 static char *xstrdup( const char *str )
  56 {
  57     char *ret = strdup( str );
  58     if (!ret) out_of_memory();
  59     return ret;
  60 }
  61
  62 static void do_config( const char *arg );
  63 static void do_debugmsg( const char *arg );
  64 static void do_desktop( const char *arg );
  65 static void do_display( const char *arg );
  66 static void do_dll( const char *arg );
  67 static void do_help( const char *arg );
  68 static void do_language( const char *arg );
  69 static void do_managed( const char *arg );
  70 static void do_synchronous( const char *arg );
  71 static void do_version( const char *arg );
  72
  73 static const struct option option_table[] =
  74 {
  75     { "config",       0, 1, 0, do_config,
  76       "--config name    Specify config file to use" },
  77     { "debugmsg",     0, 1, 1, do_debugmsg,
  78       "--debugmsg name  Turn debugging-messages on or off" },
  79     { "desktop",      0, 1, 1, do_desktop,
  80       "--desktop geom   Use a desktop window of the given geometry" },
  81     { "display",      0, 1, 0, do_display,
  82       "--display name   Use the specified display" },
  83     { "dll",          0, 1, 1, do_dll,
  84       "--dll name       Enable or disable built-in DLLs" },
  85     { "dosver",       0, 1, 1, VERSION_ParseDosVersion,
  86       "--dosver x.xx    DOS version to imitate (e.g. 6.22)\n"
  87       "                    Only valid with --winver win31" },
  88     { "help",       'h', 0, 0, do_help,
  89       "--help,-h        Show this help message" },
  90     { "language",     0, 1, 1, do_language,
  91       "--language xx    Set the language (one of Br,Ca,Cs,Cy,Da,De,En,Eo,Es,Fi,Fr,Ga,Gd,Gv,\n"
  92       "                    He,Hr,Hu,It,Ja,Ko,Kw,Nl,No,Pl,Pt,Sk,Sv,Ru,Wa)" },
  93     { "managed",      0, 0, 0, do_managed,
  94       "--managed        Allow the window manager to manage created windows" },
  95     { "synchronous",  0, 0, 1, do_synchronous,
  96       "--synchronous    Turn on synchronous display mode" },
  97     { "version",    'v', 0, 0, do_version,
  98       "--version,-v     Display the Wine version" },
  99     { "winver",       0, 1, 1, VERSION_ParseWinVersion,
 100       "--winver         Version to imitate (win95,nt40,win31,nt2k,win98,nt351,win30,win20)" },
 101     { NULL,           0, 0, 0, NULL, NULL }  /* terminator */
 102 };
 103
 104
 105 static void do_help( const char *arg )
 106 {
 107     OPTIONS_Usage();
 108 }
 109
 110 static void do_version( const char *arg )
 111 {
 112     MESSAGE( "%s\n", WINE_RELEASE_INFO );
 113     ExitProcess(0);
 114 }
 115
 116 static void do_synchronous( const char *arg )
 117 {
 118     Options.synchronous = TRUE;
 119 }
 120
 121 static void do_desktop( const char *arg )
 122 {
 123     Options.desktopGeometry = xstrdup( arg );
 124 }
 125
 126 static void do_display( const char *arg )
 127 {
 128     Options.display = xstrdup( arg );
 129 }
 130
 131 static void do_dll( const char *arg )
 132 {
 133     if (Options.dllFlags)
 134     {
 135         Options.dllFlags = (char *) realloc ( Options.dllFlags,
 136                                             strlen ( Options.dllFlags ) + strlen ( arg ) + 2 );
 137         if ( !Options.dllFlags ) out_of_memory();
 138         strcat ( Options.dllFlags, "+" );
 139         strcat ( Options.dllFlags, arg );
 140     }
 141     else
 142     {
 143         Options.dllFlags = xstrdup( arg );
 144     }
 145 }
 146
 147 static void do_language( const char *arg )
 148 {
 149     SetEnvironmentVariableA( "LANGUAGE", arg );
 150 }
 151
 152 static void do_managed( const char *arg )
 153 {
 154     Options.managed = TRUE;
 155 }
 156
 157 static void do_config( const char *arg )
 158 {
 159     Options.configFileName = xstrdup( arg );
 160 }
 161
 162 static void do_debugmsg( const char *arg )
 163 {
 164     static const char * const debug_class_names[__DBCL_COUNT] = { "fixme", "err", "warn", "trace" };
 165
 166     char *opt, *options = strdup(arg);
 167     int i;
 168
 169     if (!(opt = strtok( options, "," ))) goto error;
 170     do
 171     {
 172         unsigned char set = 0, clear = 0;
 173         char *p = strchr( opt, '+' );
 174         if (!p) p = strchr( opt, '-' );
 175         if (!p || !p[1]) goto error;
 176         if (p > opt)
 177         {
 178             for (i = 0; i < __DBCL_COUNT; i++)
 179             {
 180                 int len = strlen(debug_class_names[i]);
 181                 if (len != (p - opt)) continue;
 182                 if (!memcmp( opt, debug_class_names[i], len ))  /* found it */
 183                 {
 184                     if (*p == '+') set |= 1 << i;
 185                     else clear |= 1 << i;
 186                     break;
 187                 }
 188             }
 189             if (i == __DBCL_COUNT) goto error;  /* class name not found */
 190         }
 191         else
 192         {
 193             if (*p == '+') set = ~0;
 194             else clear = ~0;
 195         }
 196         p++;
 197         if (!strcmp( p, "all" )) p = "";  /* empty string means all */
 198         wine_dbg_add_option( p, set, clear );
 199         opt = strtok( NULL, "," );
 200     } while(opt);
 201
 202     free( options );
 203     return;
 204
 205  error:
 206     MESSAGE("wine: Syntax: --debugmsg [class]+xxx,...  or "
 207             "-debugmsg [class]-xxx,...\n");
 208     MESSAGE("Example: --debugmsg +all,warn-heap\n"
 209             "  turn on all messages except warning heap messages\n");
 210     MESSAGE("Available message classes:\n");
 211     for( i = 0; i < __DBCL_COUNT; i++) MESSAGE( "%-9s", debug_class_names[i] );
 212     MESSAGE("\n\n");
 213     ExitProcess(1);
 214 }
 215
 216
 217 static void remove_options( char *argv[], int pos, int count, int inherit )
 218 {
 219     if (inherit)
 220     {
 221         int i, len = 0;
 222         for (i = 0; i < count; i++) len += strlen(argv[pos+i]) + 1;
 223         if (inherit_str)
 224         {
 225             if (!(inherit_str = realloc( inherit_str, strlen(inherit_str) + 1 + len )))
 226                 out_of_memory();
 227             strcat( inherit_str, " " );
 228         }
 229         else
 230         {
 231             if (!(inherit_str = malloc( len ))) out_of_memory();
 232             inherit_str[0] = 0;
 233         }
 234         for (i = 0; i < count; i++)
 235         {
 236             strcat( inherit_str, argv[pos+i] );
 237             if (i < count-1) strcat( inherit_str, " " );
 238         }
 239     }
 240     while ((argv[pos] = argv[pos+count])) pos++;
 241 }
 242
 243 /* parse options from the argv array and remove all the recognized ones */
 244 static void parse_options( char *argv[] )
 245 {
 246     const struct option *opt;
 247     int i;
 248
 249     for (i = 0; argv[i]; i++)
 250     {
 251         const char *equalarg = NULL;
 252         char *p = argv[i];
 253         if (*p++ != '-') continue;  /* not an option */
 254         if (*p && !p[1]) /* short name */
 255         {
 256             if (*p == '-') break; /* "--" option */
 257             for (opt = option_table; opt->longname; opt++) if (opt->shortname == *p) break;
 258         }
 259         else  /* long name */
 260         {
 261             const char *equal = strchr  (p, '=');
 262             if (*p == '-') p++;
 263             /* check for the long name */
 264             for (opt = option_table; opt->longname; opt++) {
 265                 /* Plain --option */
 266                 if (!strcmp( p, opt->longname )) break;
 267
 268                 /* --option=value */
 269                 if (opt->has_arg &&
 270                     equal &&
 271                     strlen (opt->longname) == equal - p &&
 272                     !strncmp (p, opt->longname, equal - p)) {
 273                         equalarg = equal + 1;
 274                         break;
 275                     }
 276             }
 277         }
 278         if (!opt->longname) continue;
 279
 280         if (equalarg)
 281         {
 282             opt->func( equalarg );
 283             remove_options( argv, i, 1, opt->inherit );
 284         }
 285         else if (opt->has_arg && argv[i+1])
 286         {
 287             opt->func( argv[i+1] );
 288             remove_options( argv, i, 2, opt->inherit );
 289         }
 290         else
 291         {
 292             opt->func( "" );
 293             remove_options( argv, i, 1, opt->inherit );
 294         }
 295         i--;
 296     }
 297 }
 298
 299 /* inherit options from WINEOPTIONS variable */
 300 static void inherit_options( char *buffer )
 301 {
 302     char *argv[256];
 303     unsigned int n;
 304
 305     char *p = strtok( buffer, " \t" );
 306     for (n = 0; n < sizeof(argv)/sizeof(argv[0])-1 && p; n++)
 307     {
 308         argv[n] = p;
 309         p = strtok( NULL, " \t" );
 310     }
 311     argv[n] = NULL;
 312     parse_options( argv );
 313     if (argv[0])  /* an option remains */
 314     {
 315         MESSAGE( "Unknown option '%s' in WINEOPTIONS variable\n\n", argv[0] );
 316         OPTIONS_Usage();
 317     }
 318 }
 319
 320 /***********************************************************************
 321  *              OPTIONS_Usage
 322  */
 323 void OPTIONS_Usage(void)
 324 {
 325     const struct option *opt;
 326     MESSAGE( "Usage: %s [options] [--] program_name [arguments]\n", argv0 );
 327     MESSAGE("The -- has to be used if you specify arguments (of the program)\n\n");
 328     MESSAGE( "Options:\n" );
 329     for (opt = option_table; opt->longname; opt++) MESSAGE( "   %s\n", opt->usage );
 330     ExitProcess(0);
 331 }
 332
 333 /***********************************************************************
 334  *              OPTIONS_ParseOptions
 335  */
 336 void OPTIONS_ParseOptions( char *argv[] )
 337 {
 338     char buffer[1024];
 339     int i;
 340
 341     if (GetEnvironmentVariableA( "WINEOPTIONS", buffer, sizeof(buffer) ) && buffer[0])
 342         inherit_options( buffer );
 343
 344     parse_options( argv + 1 );
 345
 346     SetEnvironmentVariableA( "WINEOPTIONS", inherit_str );
 347
 348     /* check if any option remains */
 349     for (i = 1; argv[i]; i++)
 350     {
 351         if (!strcmp( argv[i], "--" ))
 352         {
 353             remove_options( argv, i, 1, 0 );
 354             break;
 355         }
 356         if (argv[i][0] == '-')
 357         {
 358             MESSAGE( "Unknown option '%s'\n\n", argv[i] );
 359             OPTIONS_Usage();
 360         }
 361     }
 362
 363     /* count the resulting arguments */
 364     app_argv = argv;
 365     app_argc = 0;
 366     while (argv[app_argc]) app_argc++;
 367 }
 368
 369
 370 /***********************************************************************
 371  *              __wine_get_main_args
 372  *
 373  * Return the argc/argv that the application should see.
 374  * Used by the startup code generated in the .spec.c file.
 375  */
 376 int __wine_get_main_args( char ***argv )
 377 {
 378     *argv = app_argv;
 379     return app_argc;
 380 }
 381
 382
 383 /***********************************************************************
 384  *              __wine_get_wmain_args
 385  *
 386  * Same as __wine_get_main_args but for Unicode.
 387  */
 388 int __wine_get_wmain_args( WCHAR ***argv )
 389 {
 390     if (!app_wargv)
 391     {
 392         int i;
 393         WCHAR *p;
 394         DWORD total = 0;
 395
 396         for (i = 0; i < app_argc; i++)
 397             total += MultiByteToWideChar( CP_ACP, 0, app_argv[i], -1, NULL, 0 );
 398
 399         app_wargv = HeapAlloc( GetProcessHeap(), 0,
 400                                total * sizeof(WCHAR) + (app_argc + 1) * sizeof(*app_wargv) );
 401         p = (WCHAR *)(app_wargv + app_argc + 1);
 402         for (i = 0; i < app_argc; i++)
 403         {
 404             DWORD len = MultiByteToWideChar( CP_ACP, 0, app_argv[i], -1, p, total );
 405             app_wargv[i] = p;
 406             p += len;
 407             total -= len;
 408         }
 409         app_wargv[app_argc] = NULL;
 410     }
 411     *argv = app_wargv;
 412     return app_argc;
 413 }