From 01ef1d365e5776b130e8b65772a80b6adcb0ed46 Mon Sep 17 00:00:00 2001 From: John Denker Date: Thu, 26 Jul 2012 11:00:48 -0700 Subject: files added by IPv6 patch --- ucspi-tcp-0.88/dns_sortip6.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 ucspi-tcp-0.88/dns_sortip6.c (limited to 'ucspi-tcp-0.88/dns_sortip6.c') diff --git a/ucspi-tcp-0.88/dns_sortip6.c b/ucspi-tcp-0.88/dns_sortip6.c new file mode 100644 index 0000000..7e752e9 --- /dev/null +++ b/ucspi-tcp-0.88/dns_sortip6.c @@ -0,0 +1,20 @@ +#include "byte.h" +#include "dns.h" + +/* XXX: sort servers by configurable notion of closeness? */ +/* XXX: pay attention to competence of each server? */ + +void dns_sortip6(char *s,unsigned int n) +{ + unsigned int i; + char tmp[16]; + + n >>= 4; + while (n > 1) { + i = dns_random(n); + --n; + byte_copy(tmp,16,s + (i << 4)); + byte_copy(s + (i << 4),16,s + (n << 4)); + byte_copy(s + (n << 4),16,tmp); + } +} -- cgit v1.2.3