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256 lines
7.1 KiB
C
256 lines
7.1 KiB
C
/*
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* Option parsing
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*
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* Copyright 2000 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include <stdarg.h>
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#include <string.h>
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#include <stdlib.h>
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#include "windef.h"
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#include "winbase.h"
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#include "winnls.h"
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#include "winreg.h"
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#include "winternl.h"
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#include "wine/library.h"
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#include "options.h"
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#include "module.h"
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#include "wine/debug.h"
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struct option_descr
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{
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const char *longname;
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char shortname;
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int has_arg;
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int inherit;
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void (*func)( const char *arg );
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const char *usage;
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};
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const char *argv0; /* the original argv[0] */
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const char *full_argv0; /* the full path of argv[0] (if known) */
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static char *inherit_str; /* options to pass to child processes */
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static void DECLSPEC_NORETURN out_of_memory(void);
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static void out_of_memory(void)
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{
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MESSAGE( "Virtual memory exhausted\n" );
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ExitProcess(1);
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}
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static void do_debugmsg( const char *arg );
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static void do_dll( const char *arg );
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static void do_help( const char *arg );
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static void do_version( const char *arg );
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static const struct option_descr option_table[] =
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{
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{ "debugmsg", 0, 1, 1, do_debugmsg,
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"--debugmsg name Turn debugging-messages on or off" },
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{ "dll", 0, 1, 1, do_dll,
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"--dll name This option is no longer supported" },
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{ "help", 'h', 0, 0, do_help,
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"--help,-h Show this help message" },
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{ "version", 'v', 0, 0, do_version,
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"--version,-v Display the Wine version" },
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{ NULL, 0, 0, 0, NULL, NULL } /* terminator */
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};
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static void do_help( const char *arg )
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{
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OPTIONS_Usage();
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}
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static void do_version( const char *arg )
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{
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MESSAGE( "%s\n", PACKAGE_STRING );
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ExitProcess(0);
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}
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static void do_debugmsg( const char *arg )
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{
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if (wine_dbg_parse_options( arg ))
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{
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MESSAGE("%s: Syntax: --debugmsg [class]+xxx,... or -debugmsg [class]-xxx,...\n", argv0);
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MESSAGE("Example: --debugmsg +all,warn-heap\n"
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" turn on all messages except warning heap messages\n");
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MESSAGE("Available message classes: err, warn, fixme, trace\n\n");
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ExitProcess(1);
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}
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}
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static void do_dll( const char *arg )
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{
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MESSAGE("The --dll option has been removed, you should use\n"
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"the WINEDLLOVERRIDES environment variable instead.\n"
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"To see a help message, run:\n"
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" WINEDLLOVERRIDES=help wine <program.exe>\n");
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ExitProcess(1);
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}
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static void remove_options( char *argv[], int pos, int count, int inherit )
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{
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if (inherit)
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{
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int i, len = 0;
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for (i = 0; i < count; i++) len += strlen(argv[pos+i]) + 1;
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if (inherit_str)
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{
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if (!(inherit_str = realloc( inherit_str, strlen(inherit_str) + 1 + len )))
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out_of_memory();
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strcat( inherit_str, " " );
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}
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else
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{
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if (!(inherit_str = malloc( len ))) out_of_memory();
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inherit_str[0] = 0;
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}
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for (i = 0; i < count; i++)
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{
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strcat( inherit_str, argv[pos+i] );
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if (i < count-1) strcat( inherit_str, " " );
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}
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}
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while ((argv[pos] = argv[pos+count])) pos++;
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}
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/* parse options from the argv array and remove all the recognized ones */
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static void parse_options( char *argv[] )
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{
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const struct option_descr *opt;
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int i;
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for (i = 0; argv[i]; i++)
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{
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const char *equalarg = NULL;
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char *p = argv[i];
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if (*p++ != '-') continue; /* not an option */
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if (*p && !p[1]) /* short name */
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{
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if (*p == '-') break; /* "--" option */
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for (opt = option_table; opt->longname; opt++) if (opt->shortname == *p) break;
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}
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else /* long name */
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{
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const char *equal = strchr (p, '=');
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if (*p == '-') p++;
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/* check for the long name */
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for (opt = option_table; opt->longname; opt++) {
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/* Plain --option */
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if (!strcmp( p, opt->longname )) break;
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/* --option=value */
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if (opt->has_arg &&
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equal &&
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strlen (opt->longname) == equal - p &&
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!strncmp (p, opt->longname, equal - p)) {
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equalarg = equal + 1;
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break;
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}
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}
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}
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if (!opt->longname) continue;
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if (equalarg)
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{
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opt->func( equalarg );
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remove_options( argv, i, 1, opt->inherit );
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}
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else if (opt->has_arg && argv[i+1])
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{
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opt->func( argv[i+1] );
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remove_options( argv, i, 2, opt->inherit );
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}
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else
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{
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opt->func( "" );
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remove_options( argv, i, 1, opt->inherit );
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}
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i--;
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}
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}
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/* inherit options from WINEOPTIONS variable */
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static void inherit_options( char *buffer )
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{
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char *argv[256];
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unsigned int n;
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char *p = strtok( buffer, " \t" );
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for (n = 0; n < sizeof(argv)/sizeof(argv[0])-1 && p; n++)
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{
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argv[n] = p;
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p = strtok( NULL, " \t" );
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}
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argv[n] = NULL;
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parse_options( argv );
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if (argv[0]) /* an option remains */
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{
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MESSAGE( "Unknown option '%s' in WINEOPTIONS variable\n\n", argv[0] );
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OPTIONS_Usage();
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}
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}
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/***********************************************************************
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* OPTIONS_Usage
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*/
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void OPTIONS_Usage(void)
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{
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const struct option_descr *opt;
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MESSAGE( "%s\n\n", PACKAGE_STRING );
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MESSAGE( "Usage: %s [options] [--] program_name [arguments]\n", argv0 );
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MESSAGE("The -- has to be used if you specify arguments (of the program)\n\n");
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MESSAGE( "Options:\n" );
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for (opt = option_table; opt->longname; opt++) MESSAGE( " %s\n", opt->usage );
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ExitProcess(0);
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}
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/***********************************************************************
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* OPTIONS_ParseOptions
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*/
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void OPTIONS_ParseOptions( char *argv[] )
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{
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char buffer[1024];
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int i;
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if (GetEnvironmentVariableA( "WINEOPTIONS", buffer, sizeof(buffer) ) && buffer[0])
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inherit_options( buffer );
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if (!argv) return;
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parse_options( argv + 1 );
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SetEnvironmentVariableA( "WINEOPTIONS", inherit_str );
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/* check if any option remains */
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for (i = 1; argv[i]; i++)
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{
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if (!strcmp( argv[i], "--" ))
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{
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remove_options( argv, i, 1, 0 );
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break;
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}
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if (argv[i][0] == '-')
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{
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MESSAGE( "Unknown option '%s'\n\n", argv[i] );
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OPTIONS_Usage();
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}
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}
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}
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