I'd written an article [http://blog.youkuaiyun.com/wxqee/article/details/7644831] about this title. Here is the upgrade version as C++. It has been tested in Linux, you can just copy & paste the source codes into your project, then simply use as following to query a text in Hex style.
string str, hexstr;
str = "dasjfkldjsafl; jkdfdaifeoweqrnealknf1u4908278593721";
wx::TraceBin::tracebin (str, hexstr);
std::cout << hexstr;
Very simple, right? Here are the source codes.
tracebin_h
#ifndef _WX_TRACEBIN_H
#define _WX_TRACEBIN_H
#include <string>
namespace wx {
class BinaryTracer
{
private:
static const unsigned int step = 16;
private:
static char viewChar (const char ch);
static std::string viewHead (int i);
static std::string viewHexes (const std::string &str);
static std::string viewChars (const std::string &str);
public:
// 0 1 2 3 4 5 6 7
// 01234567890123456789012345678901234567890123456789012345678901234567890123456
// -----------------------------------------------------------------------------
// 0x000000 61 62 63 64 65 66 67 68 69 6A 6B 6C 6D 6E 6F 70 abcdefghijklmnop
// 0x000010 71 72 73 74 75 76 77 78 79 7A 30 31 32 33 34 35 qrstuvwxyz012345
// 0x000020 36 37 38 39 6789
static void tracebin (const std::string &str, std::string &hex);
// \brief trace file.
// [in] filename string, file name.
// [out] hex string, append to hex.
static void tracebin_f (const std::string filename, std::string &hex);
// \brief trace memory.
// [in] memory const char *, memory ready to trace.
// [in] length unsigned int, size of memory.
// [out] hex string, append to hex.
static void tracebin_m (const void * memory, unsigned int length, std::string &hex);
};
};
#endiftracebin_cpp
#include "tracebin.h"
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <iostream>
#include <fstream>
namespace wx {
char BinaryTracer::viewChar (const char ch)
{
if (ch >= 33 && ch <= 126)
{
return ch;
}
else
{
return '.';
}
}
std::string BinaryTracer::viewHead (int i)
{
enum { HeaderLength = 9 };
char buf[HeaderLength];
memset (buf, 0, HeaderLength);
sprintf (buf, "0x%06X ", i);
return buf;
}
std::string BinaryTracer::viewHexes (const std::string &str)
{
enum { HexesLength = step * 3 + 2 + 1};
char buf[HexesLength];
memset (buf, ' ', HexesLength);
buf[HexesLength - 1] = '\0';
int currentPosition = 0;
for (unsigned int i = 0; i < str.length(); i++)
{
sprintf (buf + currentPosition, "%02X ", (unsigned char) str[i]);
currentPosition += 3;
if (i + 1 == step / 2)
{
sprintf (buf + currentPosition, " ");
currentPosition += 1;
}
}
if (currentPosition + 1 < HexesLength)
{
buf[currentPosition] = ' ';
}
return buf;
}
std::string BinaryTracer::viewChars (const std::string &str)
{
char buf[step + 1];
memset (buf, 0, step + 1);
for (unsigned int i = 0; i < str.length(); i++)
{
sprintf (buf + i, "%c", viewChar(str[i]));
}
buf[str.length()] = '\0';
return buf;
}
void BinaryTracer::tracebin (const std::string &str, std::string &hex)
{
for (unsigned int i = 0; i < str.length(); i += step)
{
std::string currentLine = str.substr (i, step);
hex += viewHead (i);
hex += viewHexes (currentLine);
hex += viewChars (currentLine);
hex += "\n";
}
}
void BinaryTracer::tracebin_f (const std::string filename, std::string &hex)
{
std::string str;
std::ifstream infile;
infile.open (filename.c_str(), std::ifstream::in);
for (unsigned char ch = infile.get(); infile.good(); ch = infile.get())
{
str += ch;
}
infile.close();
wx::BinaryTracer::tracebin (str, hex);
}
void BinaryTracer::tracebin_m (const void * memory, unsigned int length, std::string &hex)
{
std::string str;
str.append ((char*)memory, length);
tracebin (str, hex);
}
};Makefile
NAME = tracebin
VERSION = 1.0.0
RELEASE = 01
ARNAME = lib$(NAME).a
OBJS = tracebin.o
CXXFLAGS = -Wall -g
CXXFLAGS += -I.
CPPFLAGS = -DNAME=\"$(NAME)\" -DVERSION=\"$(VERSION)\" -DRELEASE=\"$(RELEASE)\"
CPPFLAGS += -D_DEBUG
.PHONY: all clean
all: $(ARNAME) test$(NAME)
test$(NAME): main.o
$(CXX) $(CPPFLAGS) -L. $^ -o $@ -ltracebin
$(ARNAME): $(OBJS)
$(AR) -r $@ $^
%.o: %.cpp
$(CXX) -c $(CXXFLAGS) $(CPPFLAGS) $< -o $@
clean:
$(RM) $(ARNAME) $(OBJS) \
test$(NAME) main.omain_cpp (Demo)
#include <string.h>
#include <iostream>
#include <fstream>
#include "tracebin.h"
void test001 ();
void test002 ();
void test003 ();
int main (int argc, char **argv)
{
// Trace a text memory
test001();
// Trace a binary or text file
test002();
// Trace a memory.
test003();
return 0;
}
void test001 ()
{
std::string str;
std::string hex;
hex.clear();
std::cout << "Trace a std::string." << std::endl;
str = "abcdefghijklmnopqrstuvwxyz0123456789";
wx::BinaryTracer::tracebin (str, hex);
std::cout << hex << std::endl;
}
void test002 ()
{
std::string str;
std::string hex;
std::cout << "Trace a file." << std::endl;
wx::BinaryTracer::tracebin_f ("main.cpp", hex);
std::cout << hex << std::endl;
}
void test003 ()
{
std::string str;
std::string hex;
std::cout << "Trace a buf." << std::endl;
struct MyTest_M {
int a;
int b;
char c;
char d[20];
} test_buf;
test_buf.a = 1;
test_buf.b = 2;
test_buf.c = 'a';
strcpy (test_buf.d, "abcd你好啊abc");
wx::BinaryTracer::tracebin_m (&test_buf, sizeof (MyTest_M), hex);
std::cout << hex;
}
Compile & Run Demo (testtracebin)
$ ./testtracebin.exe
Trace a std::string.
0x000000 61 62 63 64 65 66 67 68 69 6A 6B 6C 6D 6E 6F 70 abcdefghijklmnop
0x000010 71 72 73 74 75 76 77 78 79 7A 30 31 32 33 34 35 qrstuvwxyz012345
0x000020 36 37 38 39 6789
Trace a file.
0x000000 23 69 6E 63 6C 75 64 65 20 3C 73 74 72 69 6E 67 #include.<string
0x000010 2E 68 3E 0A 0A 23 69 6E 63 6C 75 64 65 20 3C 69 .h>..#include.<i
0x000020 6F 73 74 72 65 61 6D 3E 0A 23 69 6E 63 6C 75 64 ostream>.#includ
0x000030 65 20 3C 66 73 74 72 65 61 6D 3E 0A 0A 23 69 6E e.<fstream>..#in
0x000040 63 6C 75 64 65 20 22 74 72 61 63 65 62 69 6E 2E clude."tracebin.
0x000050 68 22 0A 0A 76 6F 69 64 20 74 65 73 74 30 30 31 h"..void.test001
0x000060 20 28 29 3B 0A 76 6F 69 64 20 74 65 73 74 30 30 .();.void.test00
0x000070 32 20 28 29 3B 0A 76 6F 69 64 20 74 65 73 74 30 2.();.void.test0
0x000080 30 33 20 28 29 3B 0A 0A 69 6E 74 20 6D 61 69 6E 03.();..int.main
0x000090 20 28 69 6E 74 20 61 72 67 63 2C 20 63 68 61 72 .(int.argc,.char
0x0000A0 20 2A 2A 61 72 67 76 29 0A 7B 0A 0A 20 20 20 20 .**argv).{......
0x0000B0 2F 2F 20 54 72 61 63 65 20 61 20 74 65 78 74 20 //.Trace.a.text.
0x0000C0 6D 65 6D 6F 72 79 0A 20 20 20 20 74 65 73 74 30 memory.....test0
0x0000D0 30 31 28 29 3B 0A 0A 20 20 20 20 2F 2F 20 54 72 01();......//.Tr
0x0000E0 61 63 65 20 61 20 62 69 6E 61 72 79 20 6F 72 20 ace.a.binary.or.
0x0000F0 74 65 78 74 20 66 69 6C 65 0A 20 20 20 20 74 65 text.file.....te
0x000100 73 74 30 30 32 28 29 3B 0A 0A 20 20 20 20 2F 2F st002();......//
0x000110 20 54 72 61 63 65 20 61 20 6D 65 6D 6F 72 79 2E .Trace.a.memory.
0x000120 0A 20 20 20 20 74 65 73 74 30 30 33 28 29 3B 0A .....test003();.
0x000130 0A 20 20 20 20 72 65 74 75 72 6E 20 30 3B 0A 7D .....return.0;.}
0x000140 0A 0A 76 6F 69 64 20 74 65 73 74 30 30 31 20 28 ..void.test001.(
0x000150 29 0A 7B 0A 20 20 20 20 73 74 64 3A 3A 73 74 72 ).{.....std::str
0x000160 69 6E 67 20 73 74 72 3B 0A 20 20 20 20 73 74 64 ing.str;.....std
0x000170 3A 3A 73 74 72 69 6E 67 20 68 65 78 3B 0A 0A 20 ::string.hex;...
0x000180 20 20 20 68 65 78 2E 63 6C 65 61 72 28 29 3B 0A ...hex.clear();.
0x000190 20 20 20 20 73 74 64 3A 3A 63 6F 75 74 20 3C 3C ....std::cout.<<
0x0001A0 20 22 54 72 61 63 65 20 61 20 73 74 64 3A 3A 73 ."Trace.a.std::s
0x0001B0 74 72 69 6E 67 2E 22 20 3C 3C 20 73 74 64 3A 3A tring.".<<.std::
0x0001C0 65 6E 64 6C 3B 0A 0A 20 20 20 20 73 74 72 20 3D endl;......str.=
0x0001D0 20 22 61 62 63 64 65 66 67 68 69 6A 6B 6C 6D 6E ."abcdefghijklmn
0x0001E0 6F 70 71 72 73 74 75 76 77 78 79 7A 30 31 32 33 opqrstuvwxyz0123
0x0001F0 34 35 36 37 38 39 22 3B 0A 20 20 20 20 77 78 3A 456789";.....wx:
0x000200 3A 42 69 6E 61 72 79 54 72 61 63 65 72 3A 3A 74 :BinaryTracer::t
0x000210 72 61 63 65 62 69 6E 20 28 73 74 72 2C 20 68 65 racebin.(str,.he
0x000220 78 29 3B 0A 20 20 20 20 73 74 64 3A 3A 63 6F 75 x);.....std::cou
0x000230 74 20 3C 3C 20 68 65 78 20 3C 3C 20 73 74 64 3A t.<<.hex.<<.std:
0x000240 3A 65 6E 64 6C 3B 0A 7D 0A 0A 76 6F 69 64 20 74 :endl;.}..void.t
0x000250 65 73 74 30 30 32 20 28 29 0A 7B 0A 20 20 20 20 est002.().{.....
0x000260 73 74 64 3A 3A 73 74 72 69 6E 67 20 73 74 72 3B std::string.str;
0x000270 0A 20 20 20 20 73 74 64 3A 3A 73 74 72 69 6E 67 .....std::string
0x000280 20 68 65 78 3B 0A 0A 20 20 20 20 73 74 64 3A 3A .hex;......std::
0x000290 63 6F 75 74 20 3C 3C 20 22 54 72 61 63 65 20 61 cout.<<."Trace.a
0x0002A0 20 66 69 6C 65 2E 22 20 3C 3C 20 73 74 64 3A 3A .file.".<<.std::
0x0002B0 65 6E 64 6C 3B 0A 0A 20 20 20 20 77 78 3A 3A 42 endl;......wx::B
0x0002C0 69 6E 61 72 79 54 72 61 63 65 72 3A 3A 74 72 61 inaryTracer::tra
0x0002D0 63 65 62 69 6E 5F 66 20 28 22 6D 61 69 6E 2E 63 cebin_f.("main.c
0x0002E0 70 70 22 2C 20 68 65 78 29 3B 0A 20 20 20 20 73 pp",.hex);.....s
0x0002F0 74 64 3A 3A 63 6F 75 74 20 3C 3C 20 68 65 78 20 td::cout.<<.hex.
0x000300 3C 3C 20 73 74 64 3A 3A 65 6E 64 6C 3B 0A 7D 0A <<.std::endl;.}.
0x000310 0A 76 6F 69 64 20 74 65 73 74 30 30 33 20 28 29 .void.test003.()
0x000320 0A 7B 0A 20 20 20 20 73 74 64 3A 3A 73 74 72 69 .{.....std::stri
0x000330 6E 67 20 73 74 72 3B 0A 20 20 20 20 73 74 64 3A ng.str;.....std:
0x000340 3A 73 74 72 69 6E 67 20 68 65 78 3B 0A 0A 20 20 :string.hex;....
0x000350 20 20 73 74 64 3A 3A 63 6F 75 74 20 3C 3C 20 22 ..std::cout.<<."
0x000360 54 72 61 63 65 20 61 20 62 75 66 2E 22 20 3C 3C Trace.a.buf.".<<
0x000370 20 73 74 64 3A 3A 65 6E 64 6C 3B 0A 0A 20 20 20 .std::endl;.....
0x000380 20 73 74 72 75 63 74 20 4D 79 54 65 73 74 5F 4D .struct.MyTest_M
0x000390 20 7B 0A 20 20 20 20 20 20 20 20 69 6E 74 20 61 .{.........int.a
0x0003A0 3B 0A 20 20 20 20 20 20 20 20 69 6E 74 20 62 3B ;.........int.b;
0x0003B0 0A 20 20 20 20 20 20 20 20 63 68 61 72 20 63 3B .........char.c;
0x0003C0 0A 20 20 20 20 20 20 20 20 63 68 61 72 20 64 5B .........char.d[
0x0003D0 32 30 5D 3B 0A 20 20 20 20 7D 20 74 65 73 74 5F 20];.....}.test_
0x0003E0 62 75 66 3B 0A 20 20 20 20 74 65 73 74 5F 62 75 buf;.....test_bu
0x0003F0 66 2E 61 20 3D 20 31 3B 0A 20 20 20 20 74 65 73 f.a.=.1;.....tes
0x000400 74 5F 62 75 66 2E 62 20 3D 20 32 3B 0A 20 20 20 t_buf.b.=.2;....
0x000410 20 74 65 73 74 5F 62 75 66 2E 63 20 3D 20 27 61 .test_buf.c.=.'a
0x000420 27 3B 0A 20 20 20 20 73 74 72 63 70 79 20 28 74 ';.....strcpy.(t
0x000430 65 73 74 5F 62 75 66 2E 64 2C 20 22 61 62 63 64 est_buf.d,."abcd
0x000440 E4 BD A0 E5 A5 BD E5 95 8A 61 62 63 22 29 3B 0A .........abc");.
0x000450 20 20 20 20 77 78 3A 3A 42 69 6E 61 72 79 54 72 ....wx::BinaryTr
0x000460 61 63 65 72 3A 3A 74 72 61 63 65 62 69 6E 5F 6D acer::tracebin_m
0x000470 20 28 26 74 65 73 74 5F 62 75 66 2C 20 73 69 7A .(&test_buf,.siz
0x000480 65 6F 66 20 28 4D 79 54 65 73 74 5F 4D 29 2C 20 eof.(MyTest_M),.
0x000490 68 65 78 29 3B 0A 20 20 20 20 73 74 64 3A 3A 63 hex);.....std::c
0x0004A0 6F 75 74 20 3C 3C 20 68 65 78 3B 0A 7D 0A 0A 0A out.<<.hex;.}...
Trace a buf.
0x000000 01 00 00 00 02 00 00 00 61 61 62 63 64 E4 BD A0 ........aabcd...
0x000010 E5 A5 BD E5 95 8A 61 62 63 00 04 80 44 01 E7 49 ......abc...D..IVery useful right?
History:
2013-02-03
Interfaces that libtracebin.a extras are:
- static void tracebin (const std::string &str, std::string &hex);
- static void tracebin_f (const std::string filename, std::string &hex);
- static void tracebin_m (const void * memory, unsigned int length, std::string &hex);
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