Todd Kulesza reported a flaw in the proxy option, since a numerical IPv6

address was not possible to use. It is now, but requires it written
RFC2732-style, within brackets - which incidently is how you enter numerical
IPv6 addresses in URLs. Test case 263 added to verify.

CHANGES

@@ -7,6 +7,12 @@
                                   Changelog
 
 
+Daniel (31 May 2005)
+- Todd Kulesza reported a flaw in the proxy option, since a numerical IPv6
+  address was not possible to use. It is now, but requires it written
+  RFC2732-style, within brackets - which incidently is how you enter numerical
+  IPv6 addresses in URLs. Test case 263 added to verify.
+
 Daniel (30 May 2005)
 - Eric Cooper reported about a problem with HTTP servers that responds with
   binary zeroes within the headers. They confused libcurl to do wrong so the

RELEASE-NOTES

@@ -5,7 +5,7 @@ Curl and libcurl 7.14.1
  Available command line options:           107
  Available curl_easy_setopt() options:     122
  Number of public functions in libcurl:    46
- Amount of public web site mirrors:        23
+ Amount of public web site mirrors:        24
  Number of known libcurl bindings:         31
  Number of contributors:                   437
 
@@ -15,10 +15,11 @@ This release includes the following changes:
 
 This release includes the following bugfixes:
 
+ o proxy host set with numerical IPv6 address
  o better treatment of binary zeroes in HTTP response headers
  o fixed the notorius FTP server failure in the test suite
  o better checking of text output in the test suite on windows
- o TYPE response check less strict
+ o FTP servers' TYPE command response check made less strict
  o URL-without-slash as in http://somehost?data
  o strerror_r() configure check for HP-UX 10.20 (and others)
  o time parse work-around on HP-UX 10.20 since its gmtime_r() is broken
@@ -30,6 +31,6 @@ Other curl-related news since the previous public release:
 This release would not have looked like this without help, code, reports and
 advice from friends like these:
 
- John McGowan, Georg Wicherski, Andres Garcia, Eric Cooper
+ John McGowan, Georg Wicherski, Andres Garcia, Eric Cooper, Todd Kulesza
 
         Thanks! (and sorry if I forgot to mention someone)

lib/url.c

@@ -2943,25 +2943,44 @@ static CURLcode CreateConnection(struct SessionHandle *data,
 
     /* We use 'proxyptr' to point to the proxy name from now on... */
     char *proxyptr=proxydup;
+    char *portptr;
 
     if(NULL == proxydup) {
       failf(data, "memory shortage");
       return CURLE_OUT_OF_MEMORY;
     }
 
-    /* Daniel Dec 10, 1998:
-       We do the proxy host string parsing here. We want the host name and the
-       port name. Accept a protocol:// prefix, even though it should just be
-       ignored. */
+    /* We do the proxy host string parsing here. We want the host name and the
+     * port name. Accept a protocol:// prefix, even though it should just be
+     * ignored.
+     */
 
-    /* 1. skip the protocol part if present */
+    /* Skip the protocol part if present */
     endofprot=strstr(proxyptr, "://");
-    if(endofprot) {
+    if(endofprot)
       proxyptr = endofprot+3;
+
+    /* start scanning for port number at this point */
+    portptr = proxyptr;
+
+    /* detect and extract RFC2732-style IPv6-addresses */
+    if(*proxyptr == '[') {
+      char *ptr = ++proxyptr; /* advance beyond the initial bracket */
+      while(*ptr && (isxdigit((int)*ptr) || (*ptr == ':')))
+        ptr++;
+      if(*ptr == ']') {
+        /* yeps, it ended nicely with a bracket as well */
+        *ptr = 0;
+        portptr = ptr+1;
+      }
+      /* Note that if this didn't end with a bracket, we still advanced the
+       * proxyptr first, but I can't see anything wrong with that as no host
+       * name nor a numeric can legally start with a bracket.
+       */
     }
 
-    /* allow user to specify proxy.server.com:1080 if desired */
-    prox_portno = strchr (proxyptr, ':');
+    /* Get port number off proxy.server.com:1080 */
+    prox_portno = strchr(portptr, ':');
     if (prox_portno) {
       *prox_portno = 0x0; /* cut off number from host name */
       prox_portno ++;

tests/data/Makefile.am

@@ -32,4 +32,4 @@ EXTRA_DIST = test1 test108 test117 test127 test20 test27 test34 test46	   \
  test231 test232 test228 test229 test233 test234 test235 test236 test520   \
  test237 test238 test239 test243 test245 test246 test247 test248 test249   \
  test250 test251 test252 test253 test254 test255 test521 test522 test523   \
- test256 test257 test258 test259 test260 test261 test262
+ test256 test257 test258 test259 test260 test261 test262 test263

tests/data/test263

@@ -0,0 +1,53 @@
+<info>
+<keywords>
+HTTP
+HTTP GET
+IPv6
+HTTP proxy
+</keywords>
+</info>
+#
+# Server-side
+<reply>
+<data>
+HTTP/1.1 200 OK
+Date: Thu, 09 Nov 2010 14:49:00 GMT
+Content-Length: 6
+Content-Type: text/html
+
+hello
+</data>
+</reply>
+
+#
+# Client-side
+<client>
+<features>
+ipv6
+</features>
+<server>
+http-ipv6
+</server>
+ <name>
+HTTP-IPv6 GET with proxy specified using IPv6-numerical address
+ </name>
+ <command>
+-g -x "http://%HOST6IP:%HTTP6PORT" http://veryveryremotesite.com/263
+</command>
+</client>
+
+#
+# Verify data after the test has been "shot"
+<verify>
+<strip>
+^User-Agent:
+</strip>
+<protocol>
+GET http://veryveryremotesite.com/263 HTTP/1.1
+Host: veryveryremotesite.com
+Pragma: no-cache
+Accept: */*
+Proxy-Connection: Keep-Alive
+
+</protocol>
+</verify>