On Wed, 22 Apr 2009, John Whaley wrote:
We're running into a segfault when setting an explicit "Host:" header with
CURLOPT_HTTPHEADER and CURLOPT_FOLLOWLOCATION is set to 1. The bug occurs
when the server returns a redirect and curl is trying to decide whether to
keep track of the original host name for cookies.
The line of code that crashes is in Curl_http(). It is trying to
string-compare data->state.first_host, unfortunately data->state.first_host
is null at that point because this_is_a_follow is true at the time we called
Curl_http_connect()
Thanks for your work and patch. I'm just not sure yet your suggested fix is
the best possible one:
... if this_is_a_follow is true, why isn't first_host already set from the
previous request that this follows from?
--
/ daniel.haxx.se
