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wine/dlls/winedos/dosconf.c
Andrew Talbot 044e76df92 winedos: Replace malloc/calloc with HeapAlloc().
2009-02-12 11:53:36 +01:00

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/*
* DOS CONFIG.SYS parser
*
* Copyright 1998 Andreas Mohr
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdarg.h>
#include <stdio.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include "windef.h"
#include "winbase.h"
#include "dosexe.h"
#include "wine/debug.h"
#include "wine/unicode.h"
WINE_DEFAULT_DEBUG_CHANNEL(profile);
static int DOSCONF_Device(char **confline);
static int DOSCONF_Dos(char **confline);
static int DOSCONF_Fcbs(char **confline);
static int DOSCONF_Break(char **confline);
static int DOSCONF_Files(char **confline);
static int DOSCONF_Install(char **confline);
static int DOSCONF_Lastdrive(char **confline);
static int DOSCONF_Menu(char **confline);
static int DOSCONF_Include(char **confline);
static int DOSCONF_Country(char **confline);
static int DOSCONF_Numlock(char **confline);
static int DOSCONF_Switches(char **confline);
static int DOSCONF_Shell(char **confline);
static int DOSCONF_Stacks(char **confline);
static int DOSCONF_Buffers(char **confline);
static void DOSCONF_Parse(char *menuname);
static DOSCONF DOSCONF_config =
{
'E', /* lastdrive */
0, /* brk_flag */
8, /* files */
9, /* stacks_nr */
256, /* stacks_sz */
15, /* buf */
1, /* buf2 */
4, /* fcbs */
0, /* flags */
NULL, /* shell */
NULL /* country */
};
static BOOL DOSCONF_loaded = FALSE;
typedef struct {
const char *tag_name;
int (*tag_handler)(char **p);
} TAG_ENTRY;
/*
* see
* http://egeria.cm.cf.ac.uk/User/P.L.Poulain/project/internal/allinter.htm
* or
* http://www.csulb.edu/~murdock/dosindex.html
*/
static const TAG_ENTRY DOSCONF_tag_entries[] =
{
{ ";", NULL },
{ "REM ", NULL },
{ "DEVICE", DOSCONF_Device },
{ "[", DOSCONF_Menu },
{ "SUBMENU", NULL },
{ "MENUDEFAULT", DOSCONF_Menu },
{ "INCLUDE", DOSCONF_Include },
{ "INSTALL", DOSCONF_Install },
{ "DOS", DOSCONF_Dos },
{ "FCBS", DOSCONF_Fcbs },
{ "BREAK", DOSCONF_Break },
{ "FILES", DOSCONF_Files },
{ "SHELL", DOSCONF_Shell },
{ "STACKS", DOSCONF_Stacks },
{ "BUFFERS", DOSCONF_Buffers },
{ "COUNTRY", DOSCONF_Country },
{ "NUMLOCK", DOSCONF_Numlock },
{ "SWITCHES", DOSCONF_Switches },
{ "LASTDRIVE", DOSCONF_Lastdrive }
};
static FILE *DOSCONF_fd = NULL;
static char *DOSCONF_menu_default = NULL;
static int DOSCONF_menu_in_listing = 0; /* we are in the [menu] section */
static int DOSCONF_menu_skip = 0; /* the current menu gets skipped */
static void DOSCONF_skip(char **pconfline)
{
char *p;
p = *pconfline;
while ( (*p == ' ') || (*p == '\t') ) p++;
*pconfline = p;
}
static int DOSCONF_JumpToEntry(char **pconfline, char separator)
{
char *p;
p = *pconfline;
while ( (*p != separator) && (*p != '\0') ) p++;
if (*p != separator)
return 0;
else
p++;
while ( (*p == ' ') || (*p == '\t') ) p++;
*pconfline = p;
return 1;
}
static int DOSCONF_Device(char **confline)
{
int loadhigh = 0;
*confline += 6; /* strlen("DEVICE") */
if (!(strncasecmp(*confline, "HIGH", 4)))
{
loadhigh = 1;
*confline += 4;
/* FIXME: get DEVICEHIGH parameters if avail ? */
}
if (!(DOSCONF_JumpToEntry(confline, '='))) return 0;
TRACE("Loading device '%s'\n", *confline);
#if 0
DOSMOD_LoadDevice(*confline, loadhigh);
#endif
return 1;
}
static int DOSCONF_Dos(char **confline)
{
*confline += 3; /* strlen("DOS") */
if (!(DOSCONF_JumpToEntry(confline, '='))) return 0;
while (**confline != '\0')
{
if (!(strncasecmp(*confline, "HIGH", 4)))
{
DOSCONF_config.flags |= DOSCONF_MEM_HIGH;
*confline += 4;
}
else if (!(strncasecmp(*confline, "UMB", 3)))
{
DOSCONF_config.flags |= DOSCONF_MEM_UMB;
*confline += 3;
}
else
{
(*confline)++;
}
DOSCONF_JumpToEntry(confline, ',');
}
TRACE( "DOSCONF_Dos: HIGH is %d, UMB is %d\n",
(DOSCONF_config.flags & DOSCONF_MEM_HIGH) != 0,
(DOSCONF_config.flags & DOSCONF_MEM_UMB) != 0 );
return 1;
}
static int DOSCONF_Fcbs(char **confline)
{
*confline += 4; /* strlen("FCBS") */
if (!(DOSCONF_JumpToEntry(confline, '='))) return 0;
DOSCONF_config.fcbs = atoi(*confline);
if (DOSCONF_config.fcbs > 255)
{
WARN( "The FCBS value in the config.sys file is too high! Setting to 255.\n" );
DOSCONF_config.fcbs = 255;
}
TRACE( "DOSCONF_Fcbs returning %d\n", DOSCONF_config.fcbs );
return 1;
}
static int DOSCONF_Break(char **confline)
{
*confline += 5; /* strlen("BREAK") */
if (!(DOSCONF_JumpToEntry(confline, '='))) return 0;
if (!(strcasecmp(*confline, "ON")))
DOSCONF_config.brk_flag = 1;
TRACE( "BREAK is %d\n", DOSCONF_config.brk_flag );
return 1;
}
static int DOSCONF_Files(char **confline)
{
*confline += 5; /* strlen("FILES") */
if (!(DOSCONF_JumpToEntry(confline, '='))) return 0;
DOSCONF_config.files = atoi(*confline);
if (DOSCONF_config.files > 255)
{
WARN( "The FILES value in the config.sys file is too high! Setting to 255.\n" );
DOSCONF_config.files = 255;
}
if (DOSCONF_config.files < 8)
{
WARN( "The FILES value in the config.sys file is too low! Setting to 8.\n" );
DOSCONF_config.files = 8;
}
TRACE( "DOSCONF_Files returning %d\n", DOSCONF_config.files );
return 1;
}
static int DOSCONF_Install(char **confline)
{
#if 0
int loadhigh = 0;
#endif
*confline += 7; /* strlen("INSTALL") */
if (!(DOSCONF_JumpToEntry(confline, '='))) return 0;
TRACE( "Installing '%s'\n", *confline );
#if 0
DOSMOD_Install(*confline, loadhigh);
#endif
return 1;
}
static int DOSCONF_Lastdrive(char **confline)
{
*confline += 9; /* strlen("LASTDRIVE") */
if (!(DOSCONF_JumpToEntry(confline, '='))) return 0;
DOSCONF_config.lastdrive = toupper(**confline);
TRACE( "Lastdrive %c\n", DOSCONF_config.lastdrive );
return 1;
}
static int DOSCONF_Country(char **confline)
{
*confline += 7; /* strlen("COUNTRY") */
if (!(DOSCONF_JumpToEntry(confline, '='))) return 0;
TRACE( "Country '%s'\n", *confline );
if (DOSCONF_config.country == NULL)
DOSCONF_config.country = HeapAlloc(GetProcessHeap(), 0, strlen(*confline) + 1);
strcpy(DOSCONF_config.country, *confline);
return 1;
}
static int DOSCONF_Numlock(char **confline)
{
*confline += 7; /* strlen("NUMLOCK") */
if (!(DOSCONF_JumpToEntry(confline, '='))) return 0;
if (!(strcasecmp(*confline, "ON")))
DOSCONF_config.flags |= DOSCONF_NUMLOCK;
TRACE( "NUMLOCK is %d\n",
(DOSCONF_config.flags & DOSCONF_NUMLOCK) != 0 );
return 1;
}
static int DOSCONF_Switches(char **confline)
{
char *p;
*confline += 8; /* strlen("SWITCHES") */
if (!(DOSCONF_JumpToEntry(confline, '='))) return 0;
p = strtok(*confline, "/");
do
{
if ( toupper(*p) == 'K')
DOSCONF_config.flags |= DOSCONF_KEYB_CONV;
}
while ((p = strtok(NULL, "/")));
TRACE( "'Force conventional keyboard' is %d\n",
(DOSCONF_config.flags & DOSCONF_KEYB_CONV) != 0 );
return 1;
}
static int DOSCONF_Shell(char **confline)
{
*confline += 5; /* strlen("SHELL") */
if (!(DOSCONF_JumpToEntry(confline, '='))) return 0;
TRACE( "Shell '%s'\n", *confline );
if (DOSCONF_config.shell == NULL)
DOSCONF_config.shell = HeapAlloc(GetProcessHeap(), 0, strlen(*confline) + 1);
strcpy(DOSCONF_config.shell, *confline);
return 1;
}
static int DOSCONF_Stacks(char **confline)
{
*confline += 6; /* strlen("STACKS") */
if (!(DOSCONF_JumpToEntry(confline, '='))) return 0;
DOSCONF_config.stacks_nr = atoi(strtok(*confline, ","));
DOSCONF_config.stacks_sz = atoi((strtok(NULL, ",")));
TRACE( "%d stacks of size %d\n",
DOSCONF_config.stacks_nr, DOSCONF_config.stacks_sz );
return 1;
}
static int DOSCONF_Buffers(char **confline)
{
char *p;
*confline += 7; /* strlen("BUFFERS") */
if (!(DOSCONF_JumpToEntry(confline, '='))) return 0;
p = strtok(*confline, ",");
DOSCONF_config.buf = atoi(p);
if ((p = strtok(NULL, ",")))
DOSCONF_config.buf2 = atoi(p);
TRACE( "%d primary buffers, %d secondary buffers\n",
DOSCONF_config.buf, DOSCONF_config.buf2 );
return 1;
}
static int DOSCONF_Menu(char **confline)
{
if (!(strncasecmp(*confline, "[MENU]", 6)))
{
DOSCONF_menu_in_listing = 1;
}
else if ((!(strncasecmp(*confline, "[COMMON]", 8)))
|| (!(strncasecmp(*confline, "[WINE]", 6))))
{
DOSCONF_menu_skip = 0;
}
else if (**confline == '[')
{
(*confline)++;
if ((DOSCONF_menu_default)
&& (!(strncasecmp(*confline, DOSCONF_menu_default,
strlen(DOSCONF_menu_default)))))
{
HeapFree(GetProcessHeap(), 0, DOSCONF_menu_default);
DOSCONF_menu_default = NULL;
DOSCONF_menu_skip = 0;
}
else
DOSCONF_menu_skip = 1;
DOSCONF_menu_in_listing = 0;
}
else if (!(strncasecmp(*confline, "menudefault", 11))
&& (DOSCONF_menu_in_listing))
{
if (!(DOSCONF_JumpToEntry(confline, '='))) return 0;
*confline = strtok(*confline, ",");
DOSCONF_menu_default = HeapAlloc(GetProcessHeap(), 0, strlen(*confline) + 1);
strcpy(DOSCONF_menu_default, *confline);
}
return 1;
}
static int DOSCONF_Include(char **confline)
{
fpos_t oldpos;
char *temp;
*confline += 7; /* strlen("INCLUDE") */
if (!(DOSCONF_JumpToEntry(confline, '='))) return 0;
fgetpos(DOSCONF_fd, &oldpos);
fseek(DOSCONF_fd, 0, SEEK_SET);
TRACE( "Including menu '%s'\n", *confline );
temp = HeapAlloc(GetProcessHeap(), 0, strlen(*confline) + 1);
strcpy(temp, *confline);
DOSCONF_Parse(temp);
HeapFree(GetProcessHeap(), 0, temp);
fsetpos(DOSCONF_fd, &oldpos);
return 1;
}
static void DOSCONF_Parse(char *menuname)
{
char confline[256];
char *p, *trail;
unsigned int i;
if (menuname != NULL) /* we need to jump to a certain sub menu */
{
while (fgets(confline, 255, DOSCONF_fd))
{
p = confline;
DOSCONF_skip(&p);
if (*p == '[')
{
p++;
if (!(trail = strrchr(p, ']')))
return;
if (!(strncasecmp(p, menuname, (int)trail - (int)p)))
break;
}
}
}
while (fgets(confline, 255, DOSCONF_fd))
{
p = confline;
DOSCONF_skip(&p);
if ((menuname) && (*p == '['))
/*
* we were handling a specific sub menu,
* but now next menu begins
*/
break;
if ((trail = strrchr(confline, '\n')))
*trail = '\0';
if ((trail = strrchr(confline, '\r')))
*trail = '\0';
if (!(DOSCONF_menu_skip))
{
for (i = 0; i < sizeof(DOSCONF_tag_entries) / sizeof(TAG_ENTRY);
i++)
if (!(strncasecmp(p, DOSCONF_tag_entries[i].tag_name,
strlen(DOSCONF_tag_entries[i].tag_name))))
{
TRACE( "tag '%s'\n", DOSCONF_tag_entries[i].tag_name );
if (DOSCONF_tag_entries[i].tag_handler != NULL)
DOSCONF_tag_entries[i].tag_handler(&p);
break;
}
}
else
{
/* the current menu gets skipped */
DOSCONF_Menu(&p);
}
}
}
DOSCONF *DOSCONF_GetConfig(void)
{
char *fullname;
WCHAR filename[MAX_PATH];
static const WCHAR configW[] = {'c','o','n','f','i','g','.','s','y','s',0};
if (DOSCONF_loaded)
return &DOSCONF_config;
/* look for config.sys at the root of the drive containing the windows dir */
GetWindowsDirectoryW( filename, MAX_PATH );
strcpyW( filename + 3, configW );
if ((fullname = wine_get_unix_file_name(filename)))
{
DOSCONF_fd = fopen(fullname, "r");
HeapFree( GetProcessHeap(), 0, fullname );
}
if (DOSCONF_fd)
{
DOSCONF_Parse(NULL);
fclose(DOSCONF_fd);
DOSCONF_fd = NULL;
}
else WARN( "Couldn't open %s\n", debugstr_w(filename) );
DOSCONF_loaded = TRUE;
return &DOSCONF_config;
}
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