From: Mike Hommey <mh@glandium.org>
Date: Fri, 08 Feb 2008 21:31:48 GMT
Subject: Re: [PATCH] Work around curl-gnutls not liking to be reinitialized
Message-ID: <20080208213148.GA2823@glandium.org>
In-Reply-To: <1202501335-28205-1-git-send-email-mh@glandium.org>

>  In the end, it was a bit of git's fault, but either curl or gnutls is the
>  actual culprit. I've not looked into either code to find out who's
>  responsible, but a very simplified testcase is as follows:
> 
> 	#include <curl/curl.h>
> 	#include <curl/easy.h>
> 
> 	int main(void) {
> 	        CURL *easy = curl_easy_init();
> 	        curl_easy_setopt(easy, CURLOPT_VERBOSE, 1);
> 	        curl_easy_setopt(easy, CURLOPT_URL, "https://www.verisign.com/");
> 	        curl_easy_perform(easy);
> 	        curl_global_cleanup();
> 	        easy = curl_easy_init();
> 	        curl_easy_setopt(easy, CURLOPT_VERBOSE, 1);
> 	        curl_easy_setopt(easy, CURLOPT_URL, "https://www.verisign.com/");
> 	        curl_easy_perform(easy);
> 	}
> 
> 	(build with gcc -o test test.c -lcurl)
> 	(note curl_easy_init does curl_global_init behind the curtains, even the
> 	second time. You can convince yourself by adding
> 	curl_global_init(CURL_GLOBAL_ALL);)

And the winner is... curl !
The bug was introduced in this commit:
http://cool.haxx.se/cvs.cgi/curl/lib/gtls.c.diff?r1=1.26&r2=1.27
Note how gtls_inited is not set back to FALSE in cleanup.

This ended up released in 7.16.3. I'm filing a bug.

Mike