diff options
Diffstat (limited to '')
| -rw-r--r-- | dirmngr/dns-stuff.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/dirmngr/dns-stuff.c b/dirmngr/dns-stuff.c index 9347196b3..ad19fc2ce 100644 --- a/dirmngr/dns-stuff.c +++ b/dirmngr/dns-stuff.c @@ -119,6 +119,10 @@ static int opt_debug; /* The timeout in seconds for libdns requests. */ static int opt_timeout; +/* The flag to disable IPv4 access - right now this only skips + * returned A records. */ +static int opt_disable_ipv4; + /* If set force the use of the standard resolver. */ static int standard_resolver; @@ -227,6 +231,15 @@ set_dns_verbose (int verbose, int debug) } +/* Set the Disable-IPv4 flag so that the name resolver does not return + * A addresses. */ +void +set_dns_disable_ipv4 (int yes) +{ + opt_disable_ipv4 = !!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 @@ -873,6 +886,8 @@ resolve_name_standard (const char *name, unsigned short port, { if (ai->ai_family != AF_INET6 && ai->ai_family != AF_INET) continue; + if (opt_disable_ipv4 && ai->ai_family == AF_INET) + continue; dai = xtrymalloc (sizeof *dai + ai->ai_addrlen - 1); dai->family = ai->ai_family; |