[GNUnet-SVN] [gnurl] 37/41: ipv6_scope: support unique local addresses

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ng0 pushed a commit to annotated tag gnurl-7.55.1
in repository gnurl.

commit b748d7af7ea4bb9baf5517cc53756f8d4d7be1ca
Author: Daniel Stenberg <address@hidden>
AuthorDate: Sun Aug 13 17:51:52 2017 +0200

    ipv6_scope: support unique local addresses
    
    Fixes #1764
    Closes #1773
    Reported-by: James Slaughter
---
 lib/if2ip.c | 4 +++-
 lib/if2ip.h | 5 +++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/lib/if2ip.c b/lib/if2ip.c
index 3e74cc687..a91b6d2ab 100644
--- a/lib/if2ip.c
+++ b/lib/if2ip.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2016, Daniel Stenberg, <address@hidden>, et al.
+ * Copyright (C) 1998 - 2017, Daniel Stenberg, <address@hidden>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -71,6 +71,8 @@ unsigned int Curl_ipv6_scope(const struct sockaddr *sa)
     const unsigned char *b = sa6->sin6_addr.s6_addr;
     unsigned short w = (unsigned short) ((b[0] << 8) | b[1]);
 
+    if((b[0] & 0xFE) == 0xFC) /* Handle ULAs */
+      return IPV6_SCOPE_UNIQUELOCAL;
     switch(w & 0xFFC0) {
     case 0xFE80:
       return IPV6_SCOPE_LINKLOCAL;
diff --git a/lib/if2ip.h b/lib/if2ip.h
index f3a7ff0b2..a90e66216 100644
--- a/lib/if2ip.h
+++ b/lib/if2ip.h
@@ -7,7 +7,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2014, Daniel Stenberg, <address@hidden>, et al.
+ * Copyright (C) 1998 - 2017, Daniel Stenberg, <address@hidden>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -27,7 +27,8 @@
 #define IPV6_SCOPE_GLOBAL       0       /* Global scope. */
 #define IPV6_SCOPE_LINKLOCAL    1       /* Link-local scope. */
 #define IPV6_SCOPE_SITELOCAL    2       /* Site-local scope (deprecated). */
-#define IPV6_SCOPE_NODELOCAL    3       /* Loopback. */
+#define IPV6_SCOPE_UNIQUELOCAL  3       /* Unique local */
+#define IPV6_SCOPE_NODELOCAL    4       /* Loopback. */
 
 unsigned int Curl_ipv6_scope(const struct sockaddr *sa);
 

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