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authorDaniel Stenberg <daniel@haxx.se>2019-02-18 16:33:36 +0100
committerDaniel Stenberg <daniel@haxx.se>2019-02-19 08:18:57 +0100
commitf510a2ec95bd92cc2c566eebdb0376e665b0d2ce (patch)
tree9b21479df5a7ef1d4447f68f6804b6c20cf14564
parent21b33b9a0b505a16027ca0c6de998b36e55d1ece (diff)
downloadcurl-f510a2ec95bd92cc2c566eebdb0376e665b0d2ce.tar.gz
connection: never reuse CONNECT_ONLY conections
and make CONNECT_ONLY conections never reuse any existing ones either. Reported-by: Pavel Löbl Bug: https://curl.haxx.se/mail/lib-2019-02/0064.html
-rw-r--r--docs/libcurl/opts/CURLOPT_CONNECT_ONLY.35
-rw-r--r--lib/url.c11
-rw-r--r--lib/urldata.h1
3 files changed, 13 insertions, 4 deletions
diff --git a/docs/libcurl/opts/CURLOPT_CONNECT_ONLY.3 b/docs/libcurl/opts/CURLOPT_CONNECT_ONLY.3
index 89a2fc12b..375d5d4d6 100644
--- a/docs/libcurl/opts/CURLOPT_CONNECT_ONLY.3
+++ b/docs/libcurl/opts/CURLOPT_CONNECT_ONLY.3
@@ -5,7 +5,7 @@
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
-.\" * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+.\" * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
@@ -37,6 +37,9 @@ useful when used with the \fICURLINFO_ACTIVESOCKET(3)\fP option to
\fIcurl_easy_getinfo(3)\fP as the library can set up the connection and then
the application can obtain the most recently used socket for special data
transfers.
+
+Transfers marked connect only will not reuse any existing connections and
+connections marked connect only will not be allowed to get reused.
.SH DEFAULT
0
.SH PROTOCOLS
diff --git a/lib/url.c b/lib/url.c
index 335889903..61971a4ea 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -1133,6 +1133,10 @@ ConnectionExists(struct Curl_easy *data,
check = curr->ptr;
curr = curr->next;
+ if(check->bits.connect_only)
+ /* connect-only connections will not be reused */
+ continue;
+
if(extract_if_dead(check, data)) {
/* disconnect it */
(void)Curl_disconnect(data, check, /* dead_connection */TRUE);
@@ -1893,8 +1897,8 @@ static struct connectdata *allocate_conn(struct Curl_easy *data)
data->set.proxy_ssl.primary.verifystatus;
conn->proxy_ssl_config.verifypeer = data->set.proxy_ssl.primary.verifypeer;
conn->proxy_ssl_config.verifyhost = data->set.proxy_ssl.primary.verifyhost;
-
conn->ip_version = data->set.ipver;
+ conn->bits.connect_only = data->set.connect_only;
#if !defined(CURL_DISABLE_HTTP) && defined(USE_NTLM) && \
defined(NTLM_WB_ENABLED)
@@ -3871,8 +3875,9 @@ static CURLcode create_conn(struct Curl_easy *data,
/* reuse_fresh is TRUE if we are told to use a new connection by force, but
we only acknowledge this option if this is not a re-used connection
already (which happens due to follow-location or during a HTTP
- authentication phase). */
- if(data->set.reuse_fresh && !data->state.this_is_a_follow)
+ authentication phase). CONNECT_ONLY transfers also refuse reuse. */
+ if((data->set.reuse_fresh && !data->state.this_is_a_follow) ||
+ data->set.connect_only)
reuse = FALSE;
else
reuse = ConnectionExists(data, conn, &conn_temp, &force_reuse, &waitpipe);
diff --git a/lib/urldata.h b/lib/urldata.h
index b194fde23..cdedb8fb1 100644
--- a/lib/urldata.h
+++ b/lib/urldata.h
@@ -452,6 +452,7 @@ struct ConnectBits {
bool proxy_ssl_connected[2]; /* TRUE when SSL initialization for HTTPS proxy
is complete */
bool socksproxy_connecting; /* connecting through a socks proxy */
+ bool connect_only;
};
struct hostname {