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-rw-r--r--dirmngr/dns-stuff.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/dirmngr/dns-stuff.c b/dirmngr/dns-stuff.c
index c9ce40a2c..728f662ae 100644
--- a/dirmngr/dns-stuff.c
+++ b/dirmngr/dns-stuff.c
@@ -123,6 +123,10 @@ static int opt_timeout;
* returned A records. */
static int opt_disable_ipv4;
+/* The flag to disable IPv6 access - right now this only skips
+ * returned AAAA records. */
+static int opt_disable_ipv6;
+
/* If set force the use of the standard resolver. */
static int standard_resolver;
@@ -248,6 +252,15 @@ set_dns_disable_ipv4 (int yes)
}
+/* Set the Disable-IPv6 flag so that the name resolver does not return
+ * AAAA addresses. */
+void
+set_dns_disable_ipv6 (int yes)
+{
+ opt_disable_ipv6 = !!yes;
+}
+
+
/* Set the timeout for libdns requests to SECONDS. A value of 0 sets
* the default timeout and values are capped at 10 minutes. */
void
@@ -953,6 +966,8 @@ resolve_name_standard (const char *name, unsigned short port,
continue;
if (opt_disable_ipv4 && ai->ai_family == AF_INET)
continue;
+ if (opt_disable_ipv6 && ai->ai_family == AF_INET6)
+ continue;
dai = xtrymalloc (sizeof *dai + ai->ai_addrlen - 1);
dai->family = ai->ai_family;