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 "wine/library.h"
  13 #include "main.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 /* Most Windows C/C++ compilers use something like this to */
  29 /* access argc and argv globally: */
  30 int _ARGC;
  31 char **_ARGV;
  32
  33 /* default options */
  34 struct options Options =
  35 {
  36     NULL,           /* desktopGeometry */
  37     NULL,           /* display */
  38     NULL,           /* dllFlags */
  39     FALSE,          /* synchronous */
  40     FALSE,          /* Managed windows */
  41     NULL            /* Alternate config file name */
  42 };
  43
  44 const char *argv0;       /* the original argv[0] */
  45 const char *full_argv0;  /* the full path of argv[0] (if known) */
  46
  47 static char *inherit_str;  /* options to pass to child processes */
  48
  49 static void out_of_memory(void) WINE_NORETURN;
  50 static void out_of_memory(void)
  51 {
  52     MESSAGE( "Virtual memory exhausted\n" );
  53     ExitProcess(1);
  54 }
  55
  56 static char *xstrdup( const char *str )
  57 {
  58     char *ret = strdup( str );
  59     if (!ret) out_of_memory();
  60     return ret;
  61 }
  62
  63 static void do_config( const char *arg );
  64 static void do_debugmsg( const char *arg );
  65 static void do_desktop( const char *arg );
  66 static void do_display( const char *arg );
  67 static void do_dll( const char *arg );
  68 static void do_help( const char *arg );
  69 static void do_language( const char *arg );
  70 static void do_managed( const char *arg );
  71 static void do_synchronous( const char *arg );
  72 static void do_version( const char *arg );
  73
  74 static const struct option option_table[] =
  75 {
  76     { "config",       0, 1, 0, do_config,
  77       "--config name    Specify config file to use" },
  78     { "debugmsg",     0, 1, 1, do_debugmsg,
  79       "--debugmsg name  Turn debugging-messages on or off" },
  80     { "desktop",      0, 1, 1, do_desktop,
  81       "--desktop geom   Use a desktop window of the given geometry" },
  82     { "display",      0, 1, 0, do_display,
  83       "--display name   Use the specified display" },
  84     { "dll",          0, 1, 1, do_dll,
  85       "--dll name       Enable or disable built-in DLLs" },
  86     { "dosver",       0, 1, 1, VERSION_ParseDosVersion,
  87       "--dosver x.xx    DOS version to imitate (e.g. 6.22). 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       "                    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 (one of win31,win95,nt351,nt40)" },
 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         char *p = argv[i];
 252         if (*p++ != '-') continue;  /* not an option */
 253         if (*p && !p[1]) /* short name */
 254         {
 255             if (*p == '-') break; /* "--" option */
 256             for (opt = option_table; opt->longname; opt++) if (opt->shortname == *p) break;
 257         }
 258         else  /* long name */
 259         {
 260             if (*p == '-') p++;
 261             /* check for the long name */
 262             for (opt = option_table; opt->longname; opt++)
 263                 if (!strcmp( p, opt->longname )) break;
 264         }
 265         if (!opt->longname) continue;
 266
 267         if (opt->has_arg && argv[i+1])
 268         {
 269             opt->func( argv[i+1] );
 270             remove_options( argv, i, 2, opt->inherit );
 271         }
 272         else
 273         {
 274             opt->func( "" );
 275             remove_options( argv, i, 1, opt->inherit );
 276         }
 277         i--;
 278     }
 279 }
 280
 281 /* inherit options from WINEOPTIONS variable */
 282 static void inherit_options( char *buffer )
 283 {
 284     char *argv[256];
 285     unsigned int n;
 286
 287     char *p = strtok( buffer, " \t" );
 288     for (n = 0; n < sizeof(argv)/sizeof(argv[0])-1 && p; n++)
 289     {
 290         argv[n] = p;
 291         p = strtok( NULL, " \t" );
 292     }
 293     argv[n] = NULL;
 294     parse_options( argv );
 295     if (argv[0])  /* an option remains */
 296     {
 297         MESSAGE( "Unknown option '%s' in WINEOPTIONS variable\n\n", argv[0] );
 298         OPTIONS_Usage();
 299     }
 300 }
 301
 302 /***********************************************************************
 303  *              OPTIONS_Usage
 304  */
 305 void OPTIONS_Usage(void)
 306 {
 307     const struct option *opt;
 308     MESSAGE( "Usage: %s [options] program_name [arguments]\n\n", argv0 );
 309     MESSAGE( "Options:\n" );
 310     for (opt = option_table; opt->longname; opt++) MESSAGE( "   %s\n", opt->usage );
 311     ExitProcess(0);
 312 }
 313
 314 /***********************************************************************
 315  *              OPTIONS_ParseOptions
 316  */
 317 void OPTIONS_ParseOptions( char *argv[] )
 318 {
 319     char buffer[1024];
 320     int i;
 321
 322     if (GetEnvironmentVariableA( "WINEOPTIONS", buffer, sizeof(buffer) ) && buffer[0])
 323         inherit_options( buffer );
 324
 325     parse_options( argv + 1 );
 326
 327     SetEnvironmentVariableA( "WINEOPTIONS", inherit_str );
 328
 329     /* check if any option remains */
 330     for (i = 1; argv[i]; i++)
 331     {
 332         if (!strcmp( argv[i], "--" ))
 333         {
 334             remove_options( argv, i, 1, 0 );
 335             break;
 336         }
 337         if (argv[i][0] == '-')
 338         {
 339             MESSAGE( "Unknown option '%s'\n\n", argv[i] );
 340             OPTIONS_Usage();
 341         }
 342     }
 343
 344     /* count the resulting arguments */
 345     _ARGV = argv;
 346     _ARGC = 0;
 347     while (argv[_ARGC]) _ARGC++;
 348 }