config.c

Linux下的类似softice的调试工具

/******************************************************************************
 *
 * Copyright (c) 2003 Gerhard W. Gruber
 *
 * PROJECT: pICE
 * $Source: /cvsroot/pice/pice/module/config.c,v $
 * $Revision: 1.1 $
 * $Date: 2004/02/17 23:12:26 $
 * $Author: lightweave $
 * $Name:  $
 *
 * $Log: config.c,v $
 * Revision 1.1  2004/02/17 23:12:26  lightweave
 * New configuration handler for reading config files. See CHANGES.txt for
 * details.
 *
 *
 *****************************************************************************/

/*
 * This file contains all code which is related to configuration. Specifically
 * it loads the config file from /etc/pice.conf and, in later versions might
 * also write it back.
 * The configuration is loaded once into memory and appropriate data structures
 * are created. After that the configuration is freed.
 *
 * Configuration in /etc/pice.conf will contain the general config for keybindings
 * and video mode in use. The format of the config file is similar to INI files
 * in Windows. Refer to profile.c for more details.
 *
 */

static char *ident = "$Header: /cvsroot/pice/pice/module/config.c,v 1.1 2004/02/17 23:12:26 lightweave Exp $";


/*++

Copyright (c) 2003 Gerhard W. Gruber

Module ModuleName:

    config.c

Abstract:

Environment:

    Kernel mode only

Author:

    Gerhard W. Gruber

Copyright notice:

  This file may be distributed under the terms of the GNU Public License.

--*/

////////////////////////////////////////////////////
// INCLUDES
////
#include "remods.h"

#include <linux/fs.h>   /* struct file, filp_open, etc. */

#include "precomp.h"
#include "profile.h"
#include "parse.h"

#define CONFIG
#include "config.h"

typedef struct {
	 ETERMINALMODE eTerminalMode;
	 char *ConsoleDriver;
}SConsoleMapping;

static SConsoleMapping ConsoleMapping[] = {
	 { TERMINAL_MODE_VGA_TEXT, "vga" },
	 { TERMINAL_MODE_HERCULES_GRAPHICS, "hercules" },
	 { TERMINAL_MODE_SERIAL, "serial" },
	 { TERMINAL_MODE_NONE, NULL }
};

//************************************************************************* 
// LoadConfig() 
//
// Load configuration file and construct appropriate objects.
//
//************************************************************************* 
BOOLEAN LoadConfig(VOID)
{
	 BOOLEAN rc = FALSE;
	 PROFILE_HANDLE *h;
	 PROFILE_SECTION *s;
	 PROFILE_MAP *m;
	 int i;

	 ENTER_FUNC();

	 if((h = OpenProfile("/etc/pice.conf", TRUE, FALSE)) == NULL)
	 {
		  DPRINT(PICE_DEBUG, DBT_CONFIG, DBL_INFO, "OpenProfile() failed\n");
		  goto Quit;
	 }

	 if(FindSection(h, "Display", &s) == -1)
	 {
		  DPRINT(PICE_DEBUG, DBT_CONFIG, DBL_INFO, "Unable to find Display section in INI file!\n");
		  goto Quit;
	 }

	 if(FindMap(s, "VideoDriver", TRUE, &m) == -1)
	 {
		  DPRINT(PICE_DEBUG, DBT_CONFIG, DBL_INFO, "Unable to find VideoDriver entry in INI file!\n");
		  goto Quit;
	 }

	 i = 0;
	 while(ConsoleMapping[i].ConsoleDriver != NULL)
	 {
		  DPRINT(PICE_DEBUG, DBT_CONFIG, DBL_INFO, "Entry for Consoledriver [%s:%s] %d\n", m->Value, ConsoleMapping[i].ConsoleDriver, stricmp(m->Value, ConsoleMapping[i].ConsoleDriver));
		  if(stricmp(m->Value, ConsoleMapping[i].ConsoleDriver) == 0)
		  {
			   eTerminalMode = ConsoleMapping[i].eTerminalMode;
			   break;
		  }

		  i++;
	 }

	 if(eTerminalMode == TERMINAL_MODE_NONE)
		  DPRINT(PICE_DEBUG, DBT_CONFIG, DBL_INFO, "Invalid entry for VideoDriver [%s]\n", m->Value);

	 // The next values are optional
	 rc = TRUE;
	 if(FindSection(h, "Init", &s) == -1)
	 {
		  DPRINT(PICE_DEBUG, DBT_CONFIG, DBL_INFO, "Unable to find Init section in INI file!\n");
		  goto Quit;
	 }

	 if(FindMap(s, "SystemMap", TRUE, &m) == -1)
	 {
		  DPRINT(PICE_DEBUG, DBT_CONFIG, DBL_INFO, "Unable to find SystemMap entry in INI file!\n");
		  goto Quit;
	 }

	 if((pCurrentSymbols = LoadSymbols(m->Value)) == NULL)
	 {
		  DPRINT(PICE_DEBUG, DBT_CONFIG, DBL_INFO, "Unable to load Symbol!\n");
		  goto Quit;
	 }
	 strcpy(szCurrentFile, m->Value);

	 rc = TRUE;

Quit:
	 if(h)
		  CloseProfile(h);

	 LEAVE_FUNC();
	 return(rc);
}