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Diffstat (limited to 'ares/ares_getnameinfo.c')
-rw-r--r--ares/ares_getnameinfo.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/ares/ares_getnameinfo.c b/ares/ares_getnameinfo.c
index 5499705b8..a63c9b6ad 100644
--- a/ares/ares_getnameinfo.c
+++ b/ares/ares_getnameinfo.c
@@ -322,6 +322,9 @@ static char *lookup_service(unsigned short port, int flags,
static void append_scopeid(struct sockaddr_in6 *addr6, unsigned int flags,
char *buf, size_t buflen)
{
+#ifdef HAVE_IF_INDEXTONAME
+ int is_ll, is_mcll;
+#endif
char fmt_u[] = "%u";
char fmt_lu[] = "%lu";
char tmpbuf[IF_NAMESIZE + 2];
@@ -331,9 +334,10 @@ static void append_scopeid(struct sockaddr_in6 *addr6, unsigned int flags,
tmpbuf[0] = '%';
#ifdef HAVE_IF_INDEXTONAME
+ is_ll = IN6_IS_ADDR_LINKLOCAL(&addr6->sin6_addr);
+ is_mcll = IN6_IS_ADDR_MC_LINKLOCAL(&addr6->sin6_addr);
if ((flags & ARES_NI_NUMERICSCOPE) ||
- (!IN6_IS_ADDR_LINKLOCAL(&addr6->sin6_addr)
- && !IN6_IS_ADDR_MC_LINKLOCAL(&addr6->sin6_addr)))
+ (!is_ll && !is_mcll))
{
sprintf(&tmpbuf[1], fmt, addr6->sin6_scope_id);
}