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authorUlrich Drepper <drepper@redhat.com>2006-09-24 17:14:11 +0000
committerUlrich Drepper <drepper@redhat.com>2006-09-24 17:14:11 +0000
commit457b559e2ec7bd66c6da9e99d27f0d1723da4874 (patch)
tree7cef3d8309f8ce3b683daeed319918a25ea03ce0 /sysdeps/posix/getaddrinfo.c
parent4a132246b1a34c6fe5d777a810e332236977e66a (diff)
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* sysdeps/posix/getaddrinfo.c (rfc3484_sort): Implement rule 4,
	home addresses.
	* sysdeps/unix/sysv/linux/check_pf.c (make_request): Recognize
	IFA_F_HOMEADDRESS flag for interfaces.
	* include/ifaddrs.h (struct in6addrinfo): Define
	in6ai_homeaddress.
Diffstat (limited to 'sysdeps/posix/getaddrinfo.c')
-rw-r--r--sysdeps/posix/getaddrinfo.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 185957be6a..dd5a57d9e0 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -1390,8 +1390,16 @@ rfc3484_sort (const void *p1, const void *p2)
 	return 1;
     }
 
-  /* Rule 4: Prefer home addresses.
-     Another thing only the kernel can decide.  */
+  /* Rule 4: Prefer home addresses.  */
+  if (a1->got_source_addr)
+    {
+      if (!(a1->source_addr_flags & in6ai_homeaddress)
+	  && (a2->source_addr_flags & in6ai_homeaddress))
+	return -1;
+      if ((a1->source_addr_flags & in6ai_homeaddress)
+	  && !(a2->source_addr_flags & in6ai_homeaddress))
+	return 1;
+    }
 
   /* Rule 5: Prefer matching label.  */
   if (a1->got_source_addr)