用代码检查Windows程序的位数

方法就是通过读取程序文件的头部来判断，具体代码如下：

 #include <stdio.h>

 #include <windows.h>

 int CrnGetImageFileMachine(LPCSTR lpFileName)

 {

     IMAGE_DOS_HEADER idh={};

     FILE *f = fopen(lpFileName, "rb");

     fread(&idh, sizeof(idh), , f);

     IMAGE_FILE_HEADER ifh;

     fseek(f, idh.e_lfanew + , SEEK_SET);

     fread(&ifh, sizeof(ifh), , f);

     fclose(f);

     return ifh.Machine;

 }

 int main(int c,char** v)

 {

     if(c != )

     {

         printf("usage: %s exepath/dllpath\n",v[]);

         getchar();

         return ;

     }

     printf("你查看的文件是: %s\n",v[]);

     printf("它的位数是:");

     int n = CrnGetImageFileMachine(v[]);

     if (n == 0x014C)

         printf("x86");

     else if (n == 0x0200)

         printf("IA64");

     else if (n == 0x8664)

         printf("x64");

     else

         printf("Unknown");

     printf("\n");

     getchar();

     return ;

 }