rdhdr.cpp

来自「Jazmyn is a 32-bit, protected mode, mult」· C++ 代码 · 共 41 行

#include<stdio.h>
#include<fstream>

#define uint unsigned int

typedef struct
{
        uint	magic;
        uint	hdr_len;
        uint	entry_point;
        uint	cs;
        uint	ds;
        uint	bss;
}exe;

int main()
{
	exe exehdr;
	std::ifstream i;
	i.open("init.com",std::ios::binary);
        if(!i)
        {
               printf("open failed\n");
               exit(0);
        }
        i.read((char*)&exehdr,sizeof(exe));
        if(!i.gcount())
        {
               printf("read failed\n");
               exit(0);
        }
        printf("magic :%x\n",exehdr.magic);
        printf("hdrsz :%u\n",exehdr.hdr_len);
        printf("entry :%u\n",exehdr.entry_point); 
        printf("cs sz :%u\n",exehdr.cs);
        printf("ds sz :%u\n",exehdr.ds);
        printf("bss sz:%u\n",exehdr.bss);
        i.close();
        return 0;
}