아날로그 DLL 로드

#include <stdio.h>

#include <malloc.h>

#include <sys/stat.h>

typedef int (*PFUNC)(int,int);

typedef struct

{

    int Position;

    int Length;

}Fun;



typedef struct

{

    int num;

    Fun *pFun;

}Lib;



int main()

{

 

    int FileSize =0;

    char FileName[] = "code.obj";

    FILE * FileHandle = fopen(FileName,"rb");

    if(FileHandle!=NULL)

    {

        Lib lib;

        fread(&lib.num,sizeof(char),4,FileHandle);

        //          

        lib.pFun =(Fun*)malloc(sizeof(Fun)*lib.num);

        fread(lib.pFun,sizeof(Fun),lib.num,FileHandle);

        //             ,(     )     

        char *instruction= (char*)malloc(sizeof(char)*lib.pFun->Length);

        //               

        fseek(FileHandle,lib.pFun->Position,0);

        //       ,      ,0         

        fread(instruction,sizeof(char),lib.pFun->Length,FileHandle);

        //           

        PFUNC pfunc = (PFUNC)instruction;

        printf("%d 
",pfunc(3,4));

        //    

    }

}



/*

  :

1)          ,          ,        DLL  

2)               char A[m],   char        

   ,           ,    A[0],            

                    ,      A[0],     

 10   ,     ,     A[10],  ,       fseek   

     

size_t fread(void *buffer,size_t size,size_t count,FILE *stream)

{

    int i=0;

    while(stream->ptr!=NULL && i<count)

    {

        buffer = stream->ptr;

        (stream->ptr)++;

    }

    return i;

} //         

 

int fseek( FILE *stream,long offset,int origin)

{

    stream->ptr = offset + origin

}

*/