Introduce FEATURE_PREFER_IPV4_ADDRESS. If selected, we have:
function old new delta
str2sockaddr 328 344 +16
diff --git a/networking/Config.in b/networking/Config.in
index b5b4597..b50aacf 100644
--- a/networking/Config.in
+++ b/networking/Config.in
@@ -12,6 +12,21 @@
Enable IPv6 support in busybox.
This adds IPv6 support in the networking applets.
+config FEATURE_PREFER_IPV4_ADDRESS
+ bool "Preferentially use IPv4 addresses from DNS queries"
+ default y
+ depends on FEATURE_IPV6
+ help
+ Use IPv4 address of network host if it has one.
+
+ If this option is off, the first returned address will be used.
+ This may cause problems when your DNS server is IPv6-capable and
+ is returning IPv6 host addresses too. If IPv6 address
+ precedes IPv4 one in DNS reply, busybox network applets
+ (e.g. wget) will use IPv6 address. On an IPv6-incapable host
+ or network applets will fail to connect to the host
+ using IPv6 address.
+
config VERBOSE_RESOLUTION_ERRORS
bool "Verbose resolution errors"
default n