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ipv6_scope: support unique local addresses

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Fixes #1764
Closes #1773
Reported-by: James Slaughter
This commit is contained in:
Daniel Stenberg 2017-08-13 17:51:52 +02:00
parent 10b3df1059
commit b748d7af7e
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GPG key ID: 5CC908FDB71E12C2
2 changed files with 6 additions and 3 deletions
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4
lib/if2ip.c
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@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 1998 - 2017, 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
@ -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;

5
lib/if2ip.h
View file

@ -7,7 +7,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 1998 - 2017, 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
@ -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);