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/**********************************************************************
* This source code is copyright 1999 by Gus Hartmann & Peter Keller *
* It may be distributed under the terms of the GNU General Purpose *
* License, version 2 or above; see the file COPYING for more *
* information. *
* *
* $Id: files.c,v 1.10 2003-10-11 20:50:50 hartmann Exp $
* *
**********************************************************************/
#include "sweep.h"
int SourceFile(GameStats* Game,FILE* PrefsFile)
{
char RawBuffer[MAX_LINE];
char *NameBuffer, *ValueBuffer;
int Value=0;
while (feof(PrefsFile)==0)
{
if (fgets(RawBuffer,MAX_LINE,PrefsFile)==0)
{
return 0;
}
if ((NameBuffer=strtok(RawBuffer,DELIMITERS))!=0)
{
/* This is essentially a great big switch statement. */
if ((ValueBuffer=strtok(NULL,DELIMITERS))!=0)
{
if (strncasecmp(NameBuffer,"color",5)==0)
{
Value=atoi(ValueBuffer);
((CheckColor(Value)>0)?Game->Color=Value:fprintf(stderr,"Invalid value for color in preference file.\n"));
}
else if (strncasecmp(NameBuffer,"faststart",9)==0)
{
Value=atoi(ValueBuffer);
((CheckFast(Value)>0)?Game->Fast=Value:fprintf(stderr,"Invalid value for faststart in preference file.\n"));
}
else if (strncasecmp(NameBuffer,"height",6)==0)
{
Value=atoi(ValueBuffer);
((CheckHeight(Value)>0)?Game->Height=Value:fprintf(stderr,"Invalid value for height in preference file.\n"));
}
else if (strncasecmp(NameBuffer,"linedraw",8)==0)
{
Value=atoi(ValueBuffer);
((CheckLineDraw(Value)>0)?InitCharSet(Game,Value):fprintf(stderr,"Invalid value for linedraw in preference file.\n"));
}
else if (strncasecmp(NameBuffer,"percent",7)==0)
{
Value=atoi(ValueBuffer);
((CheckPercent(Value)>0)?Game->Percent=Value,Game->NumMines=0:fprintf(stderr,"Invalid value for percent in preference file.\n"));
}
else if (strncasecmp(NameBuffer,"mines",5)==0)
{
Value=atoi(ValueBuffer);
((CheckNumMines(Value,Game->Height,Game->Width)>0)?Game->NumMines=Value,Game->Percent=0:fprintf(stderr,"Invalid value for mines in preference file.\n"));
}
else if (strncasecmp(NameBuffer,"width",5)==0)
{
Value=atoi(ValueBuffer);
((CheckWidth(Value)>0)?Game->Width=Value:fprintf(stderr,"Invalid value for width in preference file.\n"));
}
else if (strncasecmp(NameBuffer,"alert",5)==0)
{
/* This option takes different strings as arguments. */
if (strncasecmp(ValueBuffer,"beep",4)==0)
{
Game->Alert=BEEP;
}
else if (strncasecmp(ValueBuffer,"flash",5)==0)
{
Game->Alert=FLASH;
}
else if (strncasecmp(ValueBuffer,"none",4)==0)
{
Game->Alert=NO_ALERT;
}
else
{
fprintf(stderr,"Bad value for Alert in preference file.\n");
}
}
else if (strncasecmp(NameBuffer,"#",1)!=0)
{
fprintf(stderr,"Unknown tag %s in file.\n",NameBuffer);
}
}
}
}
return 0;
}
int SourceHomeFile(GameStats* Game)
{
FILE* PrefsFile;
char *Buffer, *Pathname;
Pathname=(char*)xmalloc(MAX_LINE);
if ((Buffer=getenv("HOME"))==NULL)
{
perror("SourceHomeFile::getenv");
return 1;
}
#if defined(HAVE_SNPRINTF)
snprintf(Pathname, MAX_LINE, "%s/%s", Buffer, DFL_PREFS_FILE);
#else
snprintf(Pathname, MAX_LINE, "%s/%s", Buffer, DFL_PREFS_FILE);
#endif
if ((PrefsFile=fopen(Pathname,"r"))==NULL)
{
/* The user has no personal preferences. */
free(Pathname);
return 0;
}
else if (SourceFile(Game,PrefsFile)==1)
{
/* An error occurred while reading the file. Try closing it. */
fclose(PrefsFile);
free(Pathname);
return 1;
}
else
{
/* Done, so close the file. */
fclose(PrefsFile);
free(Pathname);
return 0;
}
}
int SourceGlobalFile(GameStats* Game)
{
FILE* PrefsFile;
if ((PrefsFile=fopen(GLOBAL_PREFS_FILE,"r"))==NULL)
{
/* The global file is invalid or non-existant. */
fprintf(stderr,"Unable to open the global prefernces file %s\n", GLOBAL_PREFS_FILE);
/* perror("SourceGlobalFile::fopen"); */
return 1;
}
else if (SourceFile(Game,PrefsFile)==1)
{
/* An error occurred while reading the file. Try closing it. */
fclose(PrefsFile);
return 1;
}
else
{
/* Done, so close the file. */
fclose(PrefsFile);
return 0;
}
}
int WritePrefsFile(GameStats* Game)
{
FILE* PrefsFile;
char *Buffer, Pathname[MAX_LINE+1];
if ((Buffer=getenv("HOME"))==NULL)
{
perror("WriteHomeFile::getenv");
return 1;
}
#if defined(HAVE_SNPRINTF)
snprintf(Pathname, MAX_LINE, "%s/%s", Buffer, DFL_PREFS_FILE);
#else
sprintf(Pathname, "%s/%s", Buffer, DFL_PREFS_FILE);
#endif
if ((PrefsFile=fopen(Pathname,"w"))==NULL)
{
perror("WritePrefsFile::fopen");
return 1;
}
else
{
fprintf(PrefsFile,"# Freesweep version %s\n",VERSION);
fprintf(PrefsFile,"# This is a generated file, but you can edit it if you like.\n");
fprintf(PrefsFile,"Height=%d\n",Game->Height);
fprintf(PrefsFile,"Width=%d\n",Game->Width);
if (Game->NumMines==0)
{
fprintf(PrefsFile,"Percent=%d\n",Game->Percent);
}
else
{
fprintf(PrefsFile,"Mines=%d\n",Game->NumMines);
}
fprintf(PrefsFile,"FastStart=%d\n",Game->Fast);
fprintf(PrefsFile,"Color=%d\n",Game->Color);
fprintf(PrefsFile,"LineDraw=%d\n",Game->LineDraw);
switch (Game->Alert)
{
case BEEP:
fprintf(PrefsFile,"Alert=Beep\n");
break;
case FLASH:
fprintf(PrefsFile,"Alert=Flash\n");
break;
case NO_ALERT:
fprintf(PrefsFile,"Alert=None\n");
break;
default:
break;
}
fclose(PrefsFile);
}
return 0;
}
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