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我的 Windows 编译环境建立不起来，没有缘分，已经放弃。目前我的兴趣已经彻底转到 Linux 下了。在 Linux 下可做的事多着呢，根本忙不过来，恐怕以后再也没有机会回到 Windows 下编程了。
我把你提供的代码贴出来，方便有兴趣者查看。
- // mdisk.cpp : 定义控制台应用程序的入口点。
- //
- #include "stdafx.h"
- #include <stdio.h>
- #include <stdlib.h>
- #include <conio.h>
- #include <windows.h>
- #include <shellapi.h>
- //#include <winable.h>
- typedef BOOL(WINAPI *INITIALIZEWINTO)(void);
- typedef BOOL(WINAPI *SHUTDOWNWINIO)(void);
- typedef BOOL(WINAPI *GETPORTVAL)(WORD wPortAddr, PDWORD pdwPortVal, BYTE bSize);
- typedef BOOL(WINAPI *SETPORTVAL)(WORD wPortAddr, DWORD dwPortVal, BYTE bSize);
- typedef PBYTE(_stdcall *MAPPHYSTOLIN)(PBYTE pbPhysAddr, DWORD dwPhysSize, HANDLE *pPhysicalMemoryHandle);
- typedef BOOL(_stdcall *UNMAPPHYSICALMEMORY)(HANDLE PhysicalMemoryHandle, PBYTE pbLinAddr);
- typedef BOOL(WINAPI *GETPHYSLONG)(PBYTE pbPhysAddr, PDWORD pdwPhysVal);
- typedef BOOL(WINAPI *SETPHYSLONG)(PBYTE pbPhysAddr, DWORD dwPhysVal);
- //typedef BOOL(WINAPI *INSTALLWINIODRIVER)(PWSTR pszWinIoDriverPath, bool IsDemandLoaded = false);
- //typedef BOOL(WINAPI *REMOVEWINIODRIVER)();
- INITIALIZEWINTO InitializeWinIo = NULL;
- SHUTDOWNWINIO ShutdownWinIo = NULL;
- GETPORTVAL GetPortVal = NULL;
- SETPORTVAL SetPortVal = NULL;
- MAPPHYSTOLIN MapPhysToLin = NULL;
- UNMAPPHYSICALMEMORY UnmapPhysicalMemory = NULL;
- GETPHYSLONG GetPhysLong = NULL;
- SETPHYSLONG SetPhysLong = NULL;
- //INSTALLWINIODRIVER InstallWinIoDriver = NULL;
- //REMOVEWINIODRIVER RemoveWinIoDriver = NULL;
- BOOL InitFuncs(void)
- {
- HMODULE hMod = LoadLibrary(_T("WinIo32.dll"));
- InitializeWinIo= (INITIALIZEWINTO)GetProcAddress(hMod,"InitializeWinIo");
- ShutdownWinIo= (SHUTDOWNWINIO)GetProcAddress(hMod,"ShutdownWinIo");
- GetPortVal= (GETPORTVAL)GetProcAddress(hMod,"GetPortVal");
- SetPortVal= (SETPORTVAL)GetProcAddress(hMod,"SetPortVal");
- MapPhysToLin=(MAPPHYSTOLIN)GetProcAddress(hMod,"MapPhysToLin");
- UnmapPhysicalMemory=(UNMAPPHYSICALMEMORY)GetProcAddress(hMod,"UnmapPhysicalMemory");
- GetPhysLong=(GETPHYSLONG)GetProcAddress(hMod,"GetPhysLong");
- SetPhysLong=(SETPHYSLONG)GetProcAddress(hMod,"SetPhysLong");
- //InstallWinIoDriver=(INSTALLWINIODRIVER)GetProcAddress(hMod,"InstallWinIoDriver");
- //RemoveWinIoDriver=(REMOVEWINIODRIVER)GetProcAddress(hMod,"RemoveWinIoDriver");
- if(InitializeWinIo==NULL) return FALSE;
- if(ShutdownWinIo==NULL) return FALSE;
- if(GetPortVal==NULL) return FALSE;
- if(SetPortVal==NULL) return FALSE;
- if(MapPhysToLin==NULL) return FALSE;
- if(UnmapPhysicalMemory==NULL) return FALSE;
- if(GetPhysLong==NULL) return FALSE;
- if(SetPhysLong==NULL) return FALSE;
- //if(InstallWinIoDriver==NULL) return FALSE;
- //if(RemoveWinIoDriver==NULL) return FALSE;
-
- return TRUE;
- }
- BOOL ReadPhysicalMemory(unsigned int phyAddr, DWORD phySize, unsigned char *buf)
- {
- unsigned int addr;
- unsigned long data;
- unsigned long *p=(unsigned long *)buf;
- for(unsigned int i=0;i<phySize;i+=4)
- {
- addr=phyAddr+i;
- GetPhysLong((PBYTE)addr,&data);
- *p=data;
- p++;
- }
- return TRUE;
- }
- void print_buf(unsigned char *p)
- {
- for(int k=0;k<200;k++)
- {
- printf("%c",*(p+k));
- }
- printf("\n");
- }
- void find_g4d_drive(unsigned char* buf, int bufLen);
- int _tmain(int argc, _TCHAR* argv[])
- {
- if(InitFuncs()!=TRUE)
- {
- printf("Load WinIo.dll failed!\n");
- return 0;
- }
- if(InitializeWinIo()!=TRUE)
- {
- printf("InitializeWinIo failed!\n");
- return 0;
- }
- printf("InitializeWinIo OK!\n");
- printf("\n");
- //printf("DWORD length=%d\n",sizeof(DWORD));
- #if 0
- HANDLE hPhyMem;
- PBYTE pbLinAddr;
- //下面的语句让 0xf0000 地址的 65536 个字节可直接读写
- pbLinAddr = MapPhysToLin((unsigned char *)0xf0000,65536,&hPhyMem);
- printf("pbLinAddr=%x\n",pbLinAddr);
- DWORD ttmp;
- BOOL rtv;
- rtv=GetPhysLong((PBYTE)0xf0000,&ttmp);
- printf("rtv=%d, ttmp=%x\n",rtv, ttmp);
-
- #endif
- // real-mode RAM range 0-640KB
- const int nBytes=0xA0000;
- unsigned char buf[nBytes];
- memset(buf,0,nBytes);
- ReadPhysicalMemory(0,nBytes,buf);
- //print_buf(buf);
- find_g4d_drive(buf,nBytes);
- ShutdownWinIo();
- printf("Done!\n");
- return 0;
- }
- typedef struct _INTRVECT {
- UINT16 offset;
- UINT16 segment;
- } INTRVECT, *PINTRVECT;
- typedef struct _GRUB4DOS_DRIVE_MAP_SLOT {
- unsigned char from_drive;
- unsigned char to_drive; // 0xFF indicates a memdrive
- unsigned char max_head;
- unsigned char max_sector:6,
- disable_lba:1, // bit 6: disable lba
- read_only:1; // bit 7: read only
- unsigned short to_cylinder:13, // max cylinder of the TO drive
- from_cdrom:1, // bit 13: FROM drive is CDROM(with big 2048-byte sector)
- to_cdrom:1, // bit 14: TO drive is CDROM(with big 2048-byte sector)
- to_support_lba:1; // bit 15: TO drive support LBA
- unsigned char to_head; // max head of the TO drive
- unsigned char to_sector:6, // max sector of the TO drive
- fake_write:1, // bit 6: fake-write or safe-boot
- in_situ:1; // bit 7: in-situ
- UINT64 start_sector;
- UINT64 sector_count;
- } GRUB4DOS_DRIVE_MAP_SLOT, *PGRUB4DOS_DRIVE_MAP_SLOT;
- void print_drv_map(PGRUB4DOS_DRIVE_MAP_SLOT slot)
- {
- int dataLen=sizeof(GRUB4DOS_DRIVE_MAP_SLOT);
- printf("DATA: ");
- for(int k=0;k<dataLen;k++)
- {
- printf("%.2X ", *((unsigned char *)slot+k) );
- }
- printf("\n");
- UINT64 drvlen=slot->sector_count<<9;
- UINT64 address=slot->start_sector<<9;
- printf("Detected GRUB4DOS disk offset=0x%I64x bytes, len=%I64d KB\n",address, drvlen>>10);
-
- printf(" GRUB4DOS SourceDrive: 0x%02x\n", slot->from_drive);
- printf(" GRUB4DOS DestDrive: 0x%02x\n", slot->to_drive);
- printf(" GRUB4DOS MaxHead: %d\n", slot->max_head);
- printf(" GRUB4DOS MaxSector: %d\n", slot->max_sector);
- printf(" GRUB4DOS DestMaxCylinder: %d\n", slot->to_cylinder);
- printf(" GRUB4DOS DestMaxHead: %d\n", slot->to_head);
- printf(" GRUB4DOS DestMaxSector: %d\n", slot->to_sector);
- printf(" GRUB4DOS SectorStart: 0x%08x\n", slot->start_sector);
- printf(" GRUB4DOS SectorCount: %d\n", slot->sector_count);
- printf("\n");
- printf(" GRUB4DOS disable_lba=%d\n", slot->disable_lba);
- printf(" GRUB4DOS read_only=%d\n", slot->read_only);
- printf(" GRUB4DOS from_cdrom=%d\n", slot->from_cdrom);
- printf(" GRUB4DOS to_cdrom=%d\n", slot->to_cdrom);
- printf(" GRUB4DOS to_support_lba=%d\n", slot->to_support_lba);
- printf(" GRUB4DOS fake_write=%d\n", slot->fake_write);
- printf(" GRUB4DOS in_situ=%d\n", slot->in_situ);
- }
- void print_vector(INTRVECT * pvec)
- {
- printf("offset=0x%.4x ", pvec->offset);
- printf("segment=0x%.4x", pvec->segment);
- printf("\n");
- }
- void print_string(unsigned char *buf,UINT32 int13entry)
- {
- unsigned char tmp_str[9];
- memset(tmp_str,0,9);
- memcpy(tmp_str,buf+int13entry+3,8);
- printf("%s ",tmp_str);
- memset(tmp_str,0,9);
- memcpy(tmp_str,buf+int13entry+3+8,8);
- printf("%s\n",tmp_str);
- }
- int check_string(unsigned char *buf,UINT32 int13entry)
- {
- int cmp=-1;
-
- unsigned char tmp_str[9];
- memset(tmp_str,0,9);
- memcpy(tmp_str,buf+int13entry+3,8);
- cmp = strcmp((char *)tmp_str,"$INT13SF");
- if(cmp!=0) return 0;
- memset(tmp_str,0,9);
- memcpy(tmp_str,buf+int13entry+3+8,8);
- cmp = strcmp((char *)tmp_str,"GRUB4DOS");
- if(cmp==0)
- {
- //printf("Found GRUB4DOS\n");
- return 1;
- }
- return 0;
- }
- void find_g4d_drive(unsigned char* buf, int bufLen)
- {
- //bufLen=0xA0000; //640K
- INTRVECT int13vector;
- UINT32 int13entry;
- int found=0;
- /*for(int kk=0;kk<0x40;kk++)
- {
- int13vector = ((PINTRVECT)buf)[kk];
- int13entry = (((UINT32)int13vector.segment << 4) + int13vector.offset);
- printf("int13entry=0x%lX [%.4X:%.4X]\n",int13entry,int13vector.segment,int13vector.offset);
- }
- printf("\n");
- return;
- */
-
- int13vector = ((PINTRVECT)buf)[0x13];
- int13entry = (((UINT32)int13vector.segment << 4) + int13vector.offset);
- while(int13entry<0xA0000-27)
- {
- //if(int13entry==0) continue;
- printf("int13entry=0x%lX [%.4X:%.4X]\n",int13entry,int13vector.segment,int13vector.offset);
- found=check_string(buf,int13entry);
- if(found==1)
- {
- PGRUB4DOS_DRIVE_MAP_SLOT pdrvmap;
- //drive map slot starts at offset 0x20 of the same segment as int13 entry
- pdrvmap = (PGRUB4DOS_DRIVE_MAP_SLOT)(buf+(((UINT32)int13vector.segment << 4) + 0x20));
- printf("Found GRUBDOS drive at offset 0x%lX [%.4X:%.4X], data length=%d bytes\n",
- (unsigned char *)pdrvmap-buf,int13vector.segment,0x20,
- sizeof(GRUB4DOS_DRIVE_MAP_SLOT) );
- printf("\n");
- print_drv_map(pdrvmap);
- printf("\n");
-
- }
- int13vector = *((UNALIGNED INTRVECT *)(buf+int13entry+3+8+8));
- int13entry = (((UINT32)int13vector.segment << 4) + int13vector.offset);
- //printf("==>int13entry=0x%lX [%.4X:%.4X]\n",int13entry,int13vector.segment,int13vector.offset);
-
- }
- }
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发表于 2018-2-12 14:03:28
