c - How can I bypass websites that block direct connections? -

i'm trying access website https://www.000webhost.com c sockets:

#include <stdio.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <netdb.h> #include <stdlib.h> #include <string.h> #include <unistd.h>  int main(int argc, char** argv) {     struct sockaddr_in servaddr;     struct hostent *hp;     int sock_id;     char message[1024*1024];     char request[] = "get / http/1.1\n" "from: ...\n";      //get socket       if((sock_id = socket(af_inet, sock_stream, 0)) == -1) {         fprintf(stderr,"couldn't socket.\n");          exit(exit_failure);     }else {         fprintf(stderr,"got socket.\n");     }      memset(&servaddr,0,sizeof(servaddr));      //get address     if((hp = gethostbyname("000webhost.com")) == null) {         fprintf(stderr,"couldn't address.\n");          exit(exit_failure);     }else {         fprintf(stderr,"got address.\n");     }      memcpy((char *)&servaddr.sin_addr.s_addr, (char *)hp->h_addr, hp->h_length);      //port number , type     servaddr.sin_port = htons(80);     servaddr.sin_family = af_inet;      //connect     if(connect(sock_id, (struct sockaddr *)&servaddr, sizeof(servaddr)) != 0) {         fprintf(stderr, "couldn't connect.\n");     }else {         fprintf(stderr,"got connection.\n");     }      //request     write(sock_id,request,strlen(request));      //response     read(sock_id,message,1024*1024);      fprintf(stdout,"%s",message);      return 0; } 

if change request[] array "get / http/1.1\n" "from: ...\n" "get / http/1.1\n" "host: https://www.000webhost.com" "from: ...\n" (therefore removing direct-ip adress request), still error error 1003. direct ip access not allowed. there other part of request need modify? else need do?

your request malformed:

• each line needs terminated \r\n, not \n. (some web servers let away \n, have no idea whether that'll work on 000webhost.)

• every header needs \r\n after it. modified code mention in last paragraph missing \r\n @ end of host header.

• the host header needs hostname (e.g, "host: example.com"). don't include http://.