Sweden-Number/msdos/dosconf.c

441 lines
11 KiB
C

/*
* DOS CONFIG.SYS parser
*
* Copyright 1998 Andreas Mohr
*
*/
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include "winbase.h"
#include "msdos.h"
#include "debug.h"
#include "options.h"
#include "file.h"
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);
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 */
};
typedef struct {
const char *tag_name;
int (*tag_handler)(char **p);
void *data;
} 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 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 *cfg_fd;
static char *menu_default = NULL;
static int menu_in_listing = 0; /* we are in the [menu] section */
static int 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(profile, "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(profile, "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)
{
MSG("The FCBS value in the config.sys file is too high ! Setting to 255.\n");
DOSCONF_config.fcbs = 255;
}
TRACE(profile, "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(profile, "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)
{
MSG("The FILES value in the config.sys file is too high ! Setting to 255.\n");
DOSCONF_config.files = 255;
}
if (DOSCONF_config.files < 8)
{
MSG("The FILES value in the config.sys file is too low ! Setting to 8.\n");
DOSCONF_config.files = 8;
}
TRACE(profile, "DOSCONF_Files returning %d\n", DOSCONF_config.files);
return 1;
}
static int DOSCONF_Install(char **confline)
{
int loadhigh = 0;
*confline += 7; /* strlen("INSTALL") */
if (!(DOSCONF_JumpToEntry(confline, '='))) return 0;
TRACE(profile, "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(profile, "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(profile, "Country '%s'\n", *confline);
if (DOSCONF_config.country == NULL)
DOSCONF_config.country = malloc(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(profile, "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(profile, "'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(profile, "Shell '%s'\n", *confline);
if (DOSCONF_config.shell == NULL)
DOSCONF_config.shell = malloc(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(profile, "%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(profile, "%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)))
menu_in_listing = 1;
else
if ((!(strncasecmp(*confline, "[COMMON]", 8)))
|| (!(strncasecmp(*confline, "[WINE]", 6))))
menu_skip = 0;
else
if (**confline == '[')
{
(*confline)++;
if ((menu_default)
&& (!(strncasecmp(*confline, menu_default, strlen(menu_default)))))
{
free(menu_default);
menu_default = NULL;
menu_skip = 0;
}
else
menu_skip = 1;
menu_in_listing = 0;
}
else
if (!(strncasecmp(*confline, "menudefault", 11)) && (menu_in_listing))
{
if (!(DOSCONF_JumpToEntry(confline, '='))) return 0;
*confline = strtok(*confline, ",");
menu_default = malloc(strlen(*confline) + 1);
strcpy(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(cfg_fd, &oldpos);
fseek(cfg_fd, 0, SEEK_SET);
TRACE(profile, "Including menu '%s'\n", *confline);
temp = malloc(strlen(*confline) + 1);
strcpy(temp, *confline);
DOSCONF_Parse(temp);
free(temp);
fsetpos(cfg_fd, &oldpos);
return 1;
}
static void DOSCONF_Parse(char *menuname)
{
char confline[256];
char *p, *trail;
int i;
if (menuname != NULL) /* we need to jump to a certain sub menu */
{
while (fgets(confline, 255, cfg_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, cfg_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 (!(menu_skip))
{
for (i = 0; i < sizeof(tag_entries) / sizeof(TAG_ENTRY); i++)
if (!(strncasecmp(p, tag_entries[i].tag_name,
strlen(tag_entries[i].tag_name))))
{
TRACE(profile, "tag '%s'\n", tag_entries[i].tag_name);
if (tag_entries[i].tag_handler != NULL)
tag_entries[i].tag_handler(&p);
break;
}
}
else /* the current menu gets skipped */
DOSCONF_Menu(&p);
}
}
int DOSCONF_ReadConfig(void)
{
char buffer[256];
DOS_FULL_NAME fullname;
char *filename, *menuname;
int ret = 1;
PROFILE_GetWineIniString( "wine", "config.sys", "", buffer, sizeof(buffer) );
filename = strtok(buffer, ",");
menuname = strtok(NULL, ",");
if (!filename) return ret;
DOSFS_GetFullName(filename, FALSE, &fullname);
if (menuname) menu_default = strdup(menuname);
if ((cfg_fd = fopen(fullname.long_name, "r")))
{
DOSCONF_Parse(NULL);
fclose(cfg_fd);
}
else
{
MSG("Couldn't open config.sys file given as \"%s\" in" \
" wine.conf or .winerc, section [wine] !\n", filename);
ret = 0;
}
if (menu_default) free(menu_default);
return ret;
}