From 9d6c46955fb51d7867e0d8d0ed94006ab72e4821 Mon Sep 17 00:00:00 2001
From: Denis Vlasenko <vda.linux@googlemail.com>
Date: Wed, 14 Nov 2007 10:18:33 +0000
Subject: Introduce FEATURE_PREFER_IPV4_ADDRESS. If selected, we have: function
old new delta str2sockaddr
328 344 +16
---
libbb/xconnect.c | 19 ++++++++++++++++---
1 file changed, 16 insertions(+), 3 deletions(-)
(limited to 'libbb')
diff --git a/libbb/xconnect.c b/libbb/xconnect.c
index cb5ac2c8e..91c12f4d3 100644
--- a/libbb/xconnect.c
+++ b/libbb/xconnect.c
@@ -125,6 +125,7 @@ USE_FEATURE_IPV6(sa_family_t af,)
int rc;
len_and_sockaddr *r = NULL;
struct addrinfo *result = NULL;
+ struct addrinfo *used_res;
const char *org_host = host; /* only for error msg */
const char *cp;
struct addrinfo hint;
@@ -169,9 +170,21 @@ USE_FEATURE_IPV6(sa_family_t af,)
xfunc_die();
goto ret;
}
- r = xmalloc(offsetof(len_and_sockaddr, sa) + result->ai_addrlen);
- r->len = result->ai_addrlen;
- memcpy(&r->sa, result->ai_addr, result->ai_addrlen);
+ used_res = result;
+#if ENABLE_FEATURE_PREFER_IPV4_ADDRESS
+ while (1) {
+ if (used_res->ai_family == AF_INET)
+ break;
+ used_res = used_res->ai_next;
+ if (!used_res) {
+ used_res = result;
+ break;
+ }
+ }
+#endif
+ r = xmalloc(offsetof(len_and_sockaddr, sa) + used_res->ai_addrlen);
+ r->len = used_res->ai_addrlen;
+ memcpy(&r->sa, used_res->ai_addr, used_res->ai_addrlen);
set_nport(r, htons(port));
ret:
freeaddrinfo(result);
--
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