关于文件自身复制的问题？

[qepjatdwj]

我的程序是根据一个MFC程序改过来的，结果不能完成复制。
程序的目的是运行时能够对自身对行复制。

#include<windows.h>
#include<string.h>
#include<stdio.h>
void main()
{	
	char name[256]; //当前程序的全路径,不包括文件名
	char SelfName[256]; //自己的文件名
	char *fPtr=GetCommandLine();
	strncpy(name,fPtr,255);
	for(int i=0;i<256;i++)
	{
		if(i>0&&name[i]=='\'')
		{ 
			name[i-1]=0;
			break; 
		}
		name[i]=fPtr[i+1];
	}
	i=strlen(name)-1;
	int len=strlen(name)-1;
	for(i=len;i>=0;i--)
	{
		if(name[i]=='\\') break;
	}
	memset(SelfName,0,256);
	strcpy(SelfName,name+i+1);
	name[i+1]=0;
	
	
	HANDLE hFile=NULL;
	DWORD dwSize, bytes_read;
	BYTE *ptr;
	char * filename=NULL;
	filename=(char*)malloc(100*sizeof(char));
	filename=name;
	strcat(filename,SelfName);
	
	hFile=CreateFile(filename, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,
		NULL, OPEN_EXISTING,
		FILE_FLAG_SEQUENTIAL_SCAN, NULL);
	if(hFile == INVALID_HANDLE_VALUE)
	{
		MessageBox(NULL,"不能打开文件!\n\n","1",MB_OK);
		return;
	}
	dwSize = GetFileSize(hFile, NULL);
    ptr=(BYTE*)calloc(1,dwSize);
	ReadFile(hFile, ptr, dwSize, &bytes_read, NULL);
	CloseHandle(hFile);
	
	char* newFile=NULL;
	newFile=(char*)malloc(100*sizeof(char));
	newFile="c:\\";
	strcat(newFile,SelfName);
	hFile = CreateFile(newFile, GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
		NULL, CREATE_ALWAYS,
		FILE_FLAG_SEQUENTIAL_SCAN, NULL);
	if(hFile == INVALID_HANDLE_VALUE)
	{
		MessageBox(NULL,"不能建立文件.\n\n","2",MB_OK);
		return;
	}
    WriteFile(hFile, ptr, dwSize, &bytes_read, NULL);
	CloseHandle(hFile);
    free(ptr);
    MessageBox(NULL,"自我复制成功!","3",MB_OK);
	
	
}

源MFC程序：http://down.csdn.net/source/1253821

[forimprove]

帮你调了一下，发现有个值不对

#include<windows.h>
#include<string.h>
#include<stdio.h>
void main()
{    
    char name[256]; //当前程序的全路径,不包括文件名
    char SelfName[256]; //自己的文件名
    char *fPtr=GetCommandLine();
    strncpy(name,fPtr,255);
    for(int i=0;i<256;i++)
    {
        if(i>0&&name[i]=='\'')
        { 
            name[i-1]=0;
            break; 
        }
        name[i]=fPtr[i+1];
    }
    i=strlen(name)-1;
    int len=strlen(name)-1;
    for(i=len;i>=0;i--)
    {
        if(name[i]=='\\') break;
    }
    memset(SelfName,0,256);
    strcpy(SelfName,name+i+1);
    name[i+1]=0;
    
    
    HANDLE hFile=NULL;
    DWORD dwSize, bytes_read;
    BYTE *ptr;
    char * filename=NULL;
    filename=(char*)malloc(100*sizeof(char));
    filename=name;
    strcat(filename,SelfName);
    
    hFile=CreateFile(filename, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,  //这里filename应该是源文件吧，盘符被你处理掉了
        NULL, OPEN_EXISTING,
        FILE_FLAG_SEQUENTIAL_SCAN, NULL);
    if(hFile == INVALID_HANDLE_VALUE)
    {
        MessageBox(NULL,"不能打开文件!\n\n","1",MB_OK);
        return;
    }
    dwSize = GetFileSize(hFile, NULL);
    ptr=(BYTE*)calloc(1,dwSize);
    ReadFile(hFile, ptr, dwSize, &bytes_read, NULL);
    CloseHandle(hFile);
    
    char* newFile=NULL;
    newFile=(char*)malloc(100*sizeof(char));
    newFile="c:\\";
    strcat(newFile,SelfName);
    hFile = CreateFile(newFile, GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
        NULL, CREATE_ALWAYS,
        FILE_FLAG_SEQUENTIAL_SCAN, NULL);
    if(hFile == INVALID_HANDLE_VALUE)
    {
        MessageBox(NULL,"不能建立文件.\n\n","2",MB_OK);
        return;
    }
    WriteFile(hFile, ptr, dwSize, &bytes_read, NULL);
    CloseHandle(hFile);
    free(ptr);
    MessageBox(NULL,"自我复制成功!","3",MB_OK);
    
    
}

你应该可以直接用CopyFile就可以了，不用那么多代码。

[qepjatdwj]

复制自身的话，CopyFile 好像不行，试过了

[qepjatdwj]

刚才把那年MFC程序传上去了但是半天还没出来。
干脆把代码发到这吧：

BOOL CCopyMeDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
char *fPtr=::GetCommandLine();
strncpy(name,fPtr,255);
for(int i=0;i<256;i++){
	if(i>0&&name[i]=='\"'){ name[i-1]=0; break; }
     name[i]=fPtr[i+1];
}
i=strlen(name)-1;

int len=strlen(name)-1;
for(i=len;i>=0;i--){
	if(name[i]=='\\')break;
}
memset(SelfName,0,256);
strcpy(SelfName,name+i+1);
name[i+1]=0;

	return TRUE;  // return TRUE  unless you set the focus to a control
}



void CCopyMeDlg::OnCopyMe() 
{

CString FilePtr=name;
//fptr 很长，必须使到空格处中断

//MessageBox(fPtr,FilePtr,MB_OK);
//CString FilePtr1=fPtr;
//CString inf; //可试验出fptr很长
//inf.Format("%s,,%d,%d",name,FilePtr.GetLength(),strlen(name));
//AfxMessageBox(inf);//
//return;
HANDLE hFile = {NULL};
DWORD dwSize, bytes_read;
BYTE *ptr;
CString filename=name;
filename+=SelfName;


	hFile = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,
		NULL, OPEN_EXISTING,
		FILE_FLAG_SEQUENTIAL_SCAN, NULL);
	if(hFile == INVALID_HANDLE_VALUE)
	{
		MessageBox("不能打开文件...\n\n");
		return;
	}
	dwSize = GetFileSize(hFile, NULL);
    ptr=(BYTE*)calloc(1,dwSize);
	ReadFile(hFile, ptr, dwSize, &bytes_read, NULL);
	CloseHandle(hFile);

	CString newFile="c:\\";
	newFile+=SelfName;
	hFile = CreateFile(newFile, GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
		NULL, CREATE_ALWAYS,
		FILE_FLAG_SEQUENTIAL_SCAN, NULL);
	if(hFile == INVALID_HANDLE_VALUE)
	{
		MessageBox("不能建立文件.\n\n");
		return;
	}
    WriteFile(hFile, ptr, dwSize, &bytes_read, NULL);
	CloseHandle(hFile);
    free(ptr);
    AfxMessageBox("自我复制成功!");
}



void CCopyMeDlg::OnCopyMe2() 
{
HMODULE h=GetModuleHandle(NULL);
char name[256];
FILE *fp;
if(GetModuleFileName(h,name,256))
{
	if(!(fp=fopen(name,"rb"))){
       AfxMessageBox("无法复制!");	
	   return;}
	FILE *fp2;
	CString str=name;
	CString newName;
	int pos=str.ReverseFind('\\');
    newName=str.Mid(pos+1,str.GetLength()-pos-1);
	str="c:\\";
	str+=newName;
	if(!(fp2=fopen(str.GetBuffer(0),"wb"))){
       AfxMessageBox("无法建立!");	
	   return;}         
	char buf[1024];int len;
    do{
      len=fread(buf,1,1024,fp);
      if(len==0)break;
	  fwrite(buf,1,len,fp2);
	}while(1);
    fclose(fp);
	fclose(fp2);
}
}

[biweilun]

每步都调试过了？不能完成情况是什么样的？

[Kalivn]

要求简单直接exec多方便啊~