정적 라이브러리 만들기

정적 라이브러리 만들기

http://www.darknet.org.uk/2016/07/dmitry-deepmagic-information-gathering-tool/

부제 :  dmitry 소스 쪼개서 사용하기

tcp_sock.h

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <arpa/inet.h>
#include <sys/uio.h>
#include <unistd.h>
#define MAX_TCP_CON 9
#define MAX_PART 20
#define STD_MSN_PORT 1863
        struct sockaddr_in sock;        /* Structure for socket address         */
        long address;                   /* Remote IP (4 octet) address          */
        struct hostent *ph;
        int tcp_sock;
        int args[2][1];
        char print[512];
        struct in_addr **pptr;
        int bind_sock;
        int con_sock;
        int irc_sock;



int tcp_socket(char *host, int port);
void readData(char *readbuff, int readsize);
void sendData(char *sendbuff, int sendsize);

tcp_sock.c

/* TCP Socket header
 * Coded by James Greig
 * James@mor-pah.net
 * Date: 16/06/03
 */
/* TCP Socket construction */
#include "tcp_sock.h"
#include <string.h>
#include <stdio.h>
#include <ctype.h>


int tcp_socket(char *host, int port)
{
        memset(&sock, '\0', sizeof(sock));
        if(isdigit(host[0])) {
                if ((address = inet_addr(host)) == -1) {
                        printf("Error: Unable to connect - Invalid Host\n");
                        return 1;
                        }

                sock.sin_addr.s_addr = address;

                }
        else {
                if(!(ph = gethostbyname(host))) {
                printf("Error: Unable to connect - Invalid Host\n");
                return 2;
                }

                pptr = (struct in_addr **) ph->h_addr_list;
                memcpy(&sock.sin_addr, *pptr, sizeof(struct in_addr));
        }

        sock.sin_family = AF_INET;

        /* Place port in sock information structure */

        sock.sin_port = htons(port);

        /* open socket */

        if(tcp_sock == 0) {
                if((tcp_sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
                        printf("Unable to connect: Error at socket build\n");
                        return 3;
                }

                /* Connet to remote host */

                if(connect(tcp_sock, (struct sockaddr *) &sock, sizeof (sock)) < 0) {
                        printf("Unable to connect: Socket Connect Error\n");
                        return 4;
                }
        return 0;
        }

        printf("Socket Error\n");
        return 1;

}

/* TCP Socket Disconnect */

void tcp_sockdcon()
{
if (close((int) tcp_sock)) printf("close error\n");
        tcp_sock = 0;

}

/* Read Data Function (Data IN)*/

void readData(char *readbuff, int readsize)
{
        memset(readbuff, '\0', readsize);       /* Clear read buffer (null) */
        read((int) tcp_sock, (char *) readbuff, (int) readsize);
/*      printf(">> %s\n", readbuff); */
}

/* Send Data Function (Data OUT) */

void sendData(char *sendbuff, int sendsize)
{
        write((int) tcp_sock, (char *) sendbuff, (int) sendsize);
/*      printf("<< %s\n", sendbuff); */
}

컴파일 하기

hacker@ubuntu$ gcc -c tcp_sock.c
hacker@ubuntu$ ar rc libtcpsock.a tcp_sock.o
hacker@ubuntu$ 
hacker@ubuntu$ gcc -o lib1_test lib1_test.c -L./ -ltcpsock

lib1_test.c 테스트 소스

#include "tcp_sock.h"
#include <stdio.h>
#include <string.h>

int main( int argc , char ** argv )
{

    char sendbuff[255];
    memset(sendbuff,0x00 , sizeof(sendbuff));

    char recvbuff[128];
    memset(recvbuff,0x00 , sizeof(recvbuff));


    char * host = "testphp.vulnweb.com";


    tcp_socket(host,80);

    snprintf(sendbuff, sizeof(sendbuff), "GET http://%s HTTP/1.0\r\n\r\n", host);
    sendData(sendbuff, strlen(sendbuff));

    while(1){
        memset(recvbuff, '\0', sizeof(recvbuff));

        readData(recvbuff, sizeof(recvbuff));

        if ( recvbuff[0] == '\0' ){

            close(tcp_sock);
            tcp_sock = 0;
            return 0;
        }else {
            printf("Information gathered\n");
            printf("data = %s\n", recvbuff);
        }
    }

    return 0;
}

lib1_test.c 컴파일하고 실행

hacker@ubuntu$ gcc -o lib1_test lib1_test.c -L./ -ltcpsock
./lib1_test

Information gathered
data = HTTP/1.1 200 OK
Server: nginx/1.4.1
Date: Tue, 19 Jul 2016 05:10:37 GMT
Content-Type: text/html
Connection: close
X-PoweredGET http://testphp.vulnweb.com HTTP/1.0


Information gathered
data = -By: PHP/5.3.10-1~lucid+2uwsgi2