> From: Daniel Stenberg <daniel_at_haxx.se>
> Date: 2006-12-21
> On Wed, 20 Dec 2006, Robert Foreman wrote:
>
>> I'm having a problem concerning the http_proxy and no_proxy environment
>> variables.
>
> $ setenv http_proxy localhost:80
> $ setenv no_proxy www.haxx.se,127.0.0.1

I have set those variables (I have to use www-cache for the proxy or I
can't connect outside my local network; the problem happens exactly the
same if I use localhost:80).

$ echo $http_proxy
http://www-cache:80
$ echo $no_proxy
www.haxx.se,127.0.0.1

> Tests:
>
> curl 127.0.0.1 => does not use proxy
> curl www.haxx.se => does not use proxy
> curl curl.haxx.se => uses proxy
> curl www.ibm.se => uses proxy
>
> Seems to do exactly right in my eyes!?

Using the curl executable, this works for me exactly as you say.

> Can you please provide us with a recipe on how to repeat your observed
> problems?

I've made a version of your simple.c example that shows my problem.

#include <stdio.h>
#include <curl/curl.h>

int main() {
   CURL *curl;
   CURLcode res;

   curl = curl_easy_init();
   if (curl) {
     curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
     curl_easy_setopt(curl, CURLOPT_URL, "http://127.0.0.1");
     res = curl_easy_perform(curl);
     curl_easy_setopt(curl, CURLOPT_URL, "http://www.haxx.se");
     res = curl_easy_perform(curl);
     curl_easy_setopt(curl, CURLOPT_URL, "http://curl.haxx.se");
     res = curl_easy_perform(curl);
     curl_easy_setopt(curl, CURLOPT_URL, "http://www.ibm.se");
     res = curl_easy_perform(curl);
     curl_easy_setopt(curl, CURLOPT_URL, "http://www.haxx.se");
     res = curl_easy_perform(curl);
     curl_easy_cleanup(curl);
   }
   return 0;
}

When I run this program, the following happens:

- It connects to 127.0.0.1, does not use proxy
* About to connect() to 127.0.0.1 port 80 (#0)

- It connects to www.haxx.se, does not use proxy
* About to connect() to www.haxx.se port 80 (#1)

- It connects to curl.haxx.se, uses proxy
* About to connect() to proxy www-cache port 80 (#1)

- It connects to www.ibm.se, uses proxy
* Re-using existing connection! (#1) with host www-cache

- It connects to www.haxx.se, uses proxy <-- problem
* Re-using existing connection! (#1) with host www-cache

Yours,

Rob

(Apologies if my reply doesn't thread correctly, I think I got my
mailing list settings wrong).
Received on 2006-12-21