deps: reapply c-ares floating patch

bnoordhuis · bnoordhuis · commit 3afa5e6b714c · 2013-05-15T21:25:11.000+02:00
diff --git a/deps/cares/src/ares_init.c b/deps/cares/src/ares_init.c
@@ -997,6 +997,11 @@ static int get_DNS_AdaptersAddresses(char **outptr)
       }
       else if (namesrvr.sa->sa_family == AF_INET6)
       {
+        /* Windows apparently always reports some IPv6 DNS servers that
+         * prefixed with fec0:0:0:ffff. These ususally do not point to
+         * working DNS servers, so we ignore them. */
+        if (strncmp(txtaddr, "fec0:0:0:ffff:", 14) == 0)
+          continue;
         if (memcmp(&namesrvr.sa6->sin6_addr, &ares_in6addr_any,
                    sizeof(namesrvr.sa6->sin6_addr)) == 0)
           continue;

Original file line number	Diff line number	Diff line change
`@@ -997,6 +997,11 @@ static int get_DNS_AdaptersAddresses(char **outptr)`
`997`	`997`	`}`
`998`	`998`	`else if (namesrvr.sa->sa_family == AF_INET6)`
`999`	`999`	`{`
	`1000`	`+ /* Windows apparently always reports some IPv6 DNS servers that`
	`1001`	`+ * prefixed with fec0:0:0:ffff. These ususally do not point to`
	`1002`	`+ * working DNS servers, so we ignore them. */`
	`1003`	`+ if (strncmp(txtaddr, "fec0:0:0:ffff:", 14) == 0)`
	`1004`	`+ continue;`
`1000`	`1005`	`if (memcmp(&namesrvr.sa6->sin6_addr, &ares_in6addr_any,`
`1001`	`1006`	`sizeof(namesrvr.sa6->sin6_addr)) == 0)`
`1002`	`1007`	`continue;`