socket传输文件的时候，接收了可执行程序如何打不开？ 小弟我用二进制文件形式的呀，如何还会有错呢？大家帮小弟我看看

#include "stdafx.h"
#include "MySocket.h"
#include <malloc.h>
#include <stdlib.h>
#include <string.h>

typedef struct FILEBUF
{
    char *pFileBuf;
    long nLen;
};

void GetFile(const char* szFileName, FILEBUF* pFileBuf);

int _tmain(int argc, _TCHAR* argv[])
{
    UseSocket(2, 2);
    SOCKET sockSrv = socket(AF_INET, SOCK_STREAM, 0);

    SOCKADDR_IN addrSrv;
    addrSrv.sin_family = AF_INET;
    addrSrv.sin_addr.S_un.S_addr = htonl(INADDR_ANY);
    addrSrv.sin_port = htons(1987);

    bind(sockSrv,(SOCKADDR*)&addrSrv, (int)sizeof(SOCKADDR_IN));

    listen(sockSrv, 100);
    
    SOCKADDR_IN addrCli;
    int nLen = sizeof(SOCKADDR_IN);
    while(true)
    {
        FILEBUF fb;
        GetFile("file.exe", &fb);
        printf("FB = %s \n %d\n",fb.pFileBuf, fb.nLen);
        SOCKET sockCli = accept(sockSrv, (SOCKADDR*)&addrCli, &nLen);
        char szFileLen[100];
        memset(szFileLen, 0, 100);
        wsprintfA(szFileLen, "%d", fb.nLen);//将长度存放字符串中
        send(sockCli, szFileLen, 100, 0);//首先发送长度
        send(sockCli, fb.pFileBuf, fb.nLen, 0);//再发送二进制文件内容
        closesocket(sockCli);
    }

    return 0;
}

void GetFile(const char* szFileName, FILEBUF* pFileBuf)
{
    FILE* pFile = NULL;
    FILE* pFileSave = NULL;
    long nLen = 0;

    pFile = fopen(szFileName, "rb");
    pFileSave = fopen("FileSave.exe", "wb");

    fseek(pFile, 0, SEEK_END);//将文件指针移动到尾
    nLen = ftell(pFile);//得到所在位置
    fseek(pFile, 0, SEEK_SET);//重新移动回开头

    char* pByte = (char*)malloc(nLen);
    pFileBuf->pFileBuf = (char*)malloc(nLen);
    pFileBuf->nLen = nLen;
    
    
    fread(pByte, nLen, 1, pFile);//从文件中读取所有二进制内容
    strcpy(pFileBuf->pFileBuf, pByte);//将二进制内容复制到结构中
    fwrite(pByte, nLen, 1, pFileSave);
    
    fclose(pFile);
    fclose(pFileSave);
}

#include "stdafx.h"
#include "MySocket.h"
#include <stdlib.h>
#include <malloc.h>

int _tmain(int argc, _TCHAR* argv[])
{
    UseSocket(2, 2);

    SOCKET sockSrv = socket(AF_INET, SOCK_STREAM, 0);
    
    SOCKADDR_IN addrSrv;
    addrSrv.sin_family = AF_INET;
    addrSrv.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
    addrSrv.sin_port = htons(1987);

    connect(sockSrv, (SOCKADDR*)&addrSrv, sizeof(SOCKADDR_IN));
    
    char szFileLen[100];
    recv(sockSrv, szFileLen, 100, 0);//先和到文件长度
    long nLen = atol(szFileLen);
    printf("文件长度=%d\n", nLen);

    char* pFileBuf = (char*)malloc(nLen);
    memset(pFileBuf, NULL, nLen);
    recv(sockSrv, pFileBuf, nLen, 0);

    FILE* pFile = fopen("RecvFile.exe", "wb+");
    char* pByte = (char*)malloc(nLen);
    strcpy(pByte, pFileBuf);
    fwrite(pByte, nLen, 1, pFile);
    printf("%s\n", pFileBuf);
    
    closesocket(sockSrv);
    fflush(pFile);
    fclose(pFile);
    return 0;
}