Solved

winsock and connect to proxy

Posted on 2001-06-11
5
241 Views
Last Modified: 2008-02-26
Please help me.

I can't figure out why the connect does not response.

Sample code. Not sure if you need more.

  printf("send header\n");
  //GET / \r\nHost:abc.go.com\r\n
  //sprintf(head,"GET %s HTTP/1.0\n\n",_fil);
  sprintf(head,"GET http://abc.go.com HTTP/1.0\r\n");
  if (send(soc,head,strlen(head),0) != (int) strlen(head))
  {
   printf("error sending header!\n");
   exit(1);
  }
 
     //fd_set fds;

    FD_ZERO(&fds);
   FD_SET(soc,&fds);

  select (soc + 1, &fds, NULL, NULL, NULL);//This one i lazy.
  if (FD_ISSET(soc,&fds))
  {
       
       char cc[100];
          if(recv(soc,cc,sizeof(cc),0)>0)
           abc(cc);
  }

Regards
Andla
0
Comment
Question by:andla
  • 2
  • 2
5 Comments
 
LVL 5

Expert Comment

by:robpitt
ID: 6180424
You HTTP headers are unterminated, the server is waiting for the rest of the data. HTTP headers must end in a blank line, add another \r\n to the end of your headers to achieve this.


Also consider using HTTP1.1 and specifying a HOST header - see the RFC2616 for more info.
0
 
LVL 1

Author Comment

by:andla
ID: 6181536
Thanks!

I have tried that if you mean
"GET http://abc.go.com HTTP/1.0\r\n\r\n");

Yesterday just before i went to sleep i searched for an answer in the newsgroups. I saw that i missed a "/" character after the http://abc.go.com and. After that it worked, hurray. I'm pretty new to this and i value your experience with winsock programming. I will remember the two '\r\n\r\n'. What i think (not sure)is that if i want to cover a broader functionality of the GET string i will also have to try one \r\n or \n\n. Is it general that i must use a '/' after the URL ?

/Andla
0
 
LVL 5

Accepted Solution

by:
robpitt earned 50 total points
ID: 6194354
Ooops, yes I should have spotted the missing "/" from the end.

I would also encourage you to use HTTP1.1 as many websites require it these days.
E.g.
  "GET www.blah.com/ HTTP/1.1\r\n"
  "Host: www.blah.com\r\n"
  "\r\n"

0
 
LVL 11

Expert Comment

by:griessh
ID: 6814562
I think you forgot this question. I will ask Community Support to close it unless you finalize it within 7 days. Unless there is objection or further activity,  I will suggest to refund the points and PAQ at zero points since you found your own solution.

The link to the Community Support area is: http://www.experts-exchange.com/jsp/qList.jsp?ta=commspt

Please do not accept this comment as an answer!
======
Werner
0
 
LVL 1

Author Comment

by:andla
ID: 6815460
I'm very sorry that i have forgotten this :-( . Shame on me.
Very sorry.
Andla
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article will show you some of the more useful Standard Template Library (STL) algorithms through the use of working examples.  You will learn about how these algorithms fit into the STL architecture, how they work with STL containers, and why t…
Introduction This article is a continuation of the C/C++ Visual Studio Express debugger series. Part 1 provided a quick start guide in using the debugger. Part 2 focused on additional topics in breakpoints. As your assignments become a little more …
The viewer will learn how to user default arguments when defining functions. This method of defining functions will be contrasted with the non-default-argument of defining functions.
The viewer will learn how to clear a vector as well as how to detect empty vectors in C++.

895 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

13 Experts available now in Live!

Get 1:1 Help Now