Linux C | 查看二进制文件的小工具HexView

Linux C | 查看二进制文件的小工具HexView

源码：

/*******************************************************************
 *   > File Name: HexView.cpp
 *   > Create Time: 2021年11月22日 星期一 17时47分27秒
 ******************************************************************/

#include 
#include 
#include 
using namespace std;

int main(int argc, char* argv[])
{
   if(argc != 2) {
       cout << "Usage:" << argv[0] << " " << endl;
       return (-1);
   }

   FILE *fp = NULL;
   int c;

   if((fp = fopen(argv[1], "r")) == NULL){
        cout << "file " << argv[1] << " open error" << endl;
        return (-2);
   }

   int count = 1;
   while((c = fgetc(fp)) != EOF){
       if (count %  17 == 0){
            cout << endl;
       }else{
            cout << hex << setw(2) << setfill('0') << c << " ";
       }

       count ++;
   }
   cout << endl;

   fclose(fp);

    return 0;
}

编译：

lanfeiy@msil-virtual-machine:~/test$ make
g++ -o HexView HexView.cpp -g -Wall

运行：

lanfeiy@msil-virtual-machine:~/test$ ./HexView white.bmp
42 4d 76 01 00 00 00 00 00 00 36 00 00 00 28 00
00 0a 00 00 00 0a 00 00 00 01 00 18 00 00 00 00
40 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
00 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff 00 00
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff 00 00 ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff 00 00 ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff 00 00 ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff 00 00 ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff 00 00 ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff 00 00 ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
00 00 ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 00

lanfeiy@msil-virtual-machine:~/test$ ./HexView black.bmp
42 4d 76 01 00 00 00 00 00 00 36 00 00 00 28 00
00 0a 00 00 00 0a 00 00 00 01 00 18 00 00 00 00
40 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

---

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