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/* ----------------------------------------------------------------------- *
*
* Copyright 2003 Lars Munch Christensen - All Rights Reserved
*
* Based on the Linux installer program for SYSLINUX by H. Peter Anvin
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, Inc., 53 Temple Place Ste 330,
* Boston MA 02111-1307, USA; either version 2 of the License, or
* (at your option) any later version; incorporated herein by reference.
*
* ----------------------------------------------------------------------- */
/*
* syslinux-mingw.c - Win2k/WinXP installer program for SYSLINUX
*/
#include <windows.h>
#include <stdio.h>
#include <ctype.h>
#include "syslinux.h"
char *program; /* Name of program */
char *drive; /* Drive to install to */
/*
* Check Windows version.
*
* On Windows Me/98/95 you cannot open a directory, physical disk, or
* volume using CreateFile.
*/
int checkver()
{
OSVERSIONINFO osvi;
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx(&osvi);
return (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT) &&
((osvi.dwMajorVersion > 4) ||
((osvi.dwMajorVersion == 4) && (osvi.dwMinorVersion == 0)));
}
/*
* Windows error function
*/
void error(char* msg)
{
LPVOID lpMsgBuf;
/* Format the Windows error message */
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, GetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
(LPTSTR) &lpMsgBuf, 0, NULL );
/* Print it */
fprintf(stderr, "%s: %s", msg, (char*) lpMsgBuf);
/* Free the buffer */
LocalFree(lpMsgBuf);
}
void usage(void)
{
fprintf(stderr, "Usage: syslinux.exe [-sf] <drive>:\n");
exit(1);
}
int main(int argc, char *argv[])
{
HANDLE f_handle;
DWORD bytes_read;
DWORD bytes_written;
DWORD drives;
UINT drive_type;
static unsigned char sectbuf[512];
char **argp, *opt;
char drive_name[128];
char ldlinux_name[128];
const char *errmsg;
int force = 0; /* -f (force) option */
(void)argc;
if (!checkver()) {
fprintf(stderr, "You need to be running at least Windows NT\n");
exit(1);
}
program = argv[0];
drive = NULL;
for ( argp = argv+1 ; *argp ; argp++ ) {
if ( **argp == '-' ) {
opt = *argp + 1;
if ( !*opt )
usage();
while ( *opt ) {
if ( *opt == 's' ) {
syslinux_make_stupid(); /* Use "safe, slow and stupid" code */
} else if ( *opt == 'f' ) {
force = 1; /* Force install */
} else {
usage();
}
opt++;
}
} else {
if ( drive )
usage();
drive = *argp;
}
}
if ( !drive )
usage();
/* Test if drive exists */
drives = GetLogicalDrives();
if(!(drives & ( 1 << (tolower(drive[0]) - 'a')))) {
fprintf(stderr, "No such drive %c:\n", drive[0]);
exit(1);
}
/* Determines the drive type */
sprintf(drive_name, "%c:\\", drive[0]);
drive_type = GetDriveType(drive_name);
/* Test for removeable media */
if ((drive_type == DRIVE_FIXED) && (force == 0)) {
fprintf(stderr, "Not a removable drive (use -f to override) \n");
exit(1);
}
/* Test for unsupported media */
if ((drive_type != DRIVE_FIXED) && (drive_type != DRIVE_REMOVABLE)) {
fprintf(stderr, "Unsupported media\n");
exit(1);
}
/*
* First open the drive
*/
sprintf(drive_name, "\\\\.\\%c:", drive[0]);
f_handle = CreateFile(drive_name, GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, 0, NULL );
if(f_handle == INVALID_HANDLE_VALUE) {
error("Could not open drive");
exit(1);
}
/*
* Read the boot sector
*/
ReadFile(f_handle, sectbuf, 512, &bytes_read, NULL);
if(bytes_read != 512) {
fprintf(stderr, "Could not read the whole boot sector\n");
exit(1);
}
/* Check to see that what we got was indeed an MS-DOS boot sector/superblock */
if(!syslinux_check_bootsect(sectbuf,&errmsg)) {
fprintf(stderr, "%s\n", errmsg);
exit(1);
}
/* Make the syslinux boot sector */
syslinux_make_bootsect(sectbuf);
/* Write the syslinux boot sector into the boot sector */
SetFilePointer(f_handle, 0, NULL, FILE_BEGIN);
WriteFile( (HANDLE) f_handle, sectbuf, 512, &bytes_written, NULL ) ;
if(bytes_written != 512) {
fprintf(stderr, "Could not write the whole boot sector\n");
exit(1);
}
/* Close file */
CloseHandle(f_handle);
/* Create the filename */
sprintf(ldlinux_name, "%s%s", drive_name, "\\ldlinux.sys");
/* Change to normal attributes to enable deletion */
/* Just ignore error if the file do not exists */
SetFileAttributes(ldlinux_name, FILE_ATTRIBUTE_NORMAL);
/* Delete the file */
/* Just ignore error if the file do not exists */
DeleteFile(ldlinux_name);
/* Create ldlinux.sys file */
f_handle = CreateFile(ldlinux_name, GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, CREATE_ALWAYS,
FILE_ATTRIBUTE_ARCHIVE | FILE_ATTRIBUTE_READONLY,
NULL );
if(f_handle == INVALID_HANDLE_VALUE) {
error("Unable to create ldlinux.sys");
exit(1);
}
/* Write ldlinux.sys file */
if (!WriteFile(f_handle, syslinux_ldlinux, syslinux_ldlinux_len, &bytes_written, NULL)) {
error("Could not write ldlinux.sys");
exit(1);
}
if (bytes_written != syslinux_ldlinux_len) {
fprintf(stderr, "Could not write whole ldlinux.sys\n");
exit(1);
}
/* Now flush the media */
if(!FlushFileBuffers(f_handle)) {
error("FlushFileBuffers failed");
exit(1);
}
/* Close file */
CloseHandle(f_handle);
/* Done! */
return 0;
}
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