1 files changed, 49 insertions, 0 deletions
diff --git a/user/lua-socket/0001-Create-socket-on-first-sendto-if-family-agnostic-udp.patch b/user/lua-socket/0001-Create-socket-on-first-sendto-if-family-agnostic-udp.patch
new file mode 100644
index 000000000..61bae6fbf
--- /dev/null
+++ b/user/lua-socket/0001-Create-socket-on-first-sendto-if-family-agnostic-udp.patch
@@ -0,0 +1,49 @@
+From 3041a808c3797e3c87272d71666e7b2f7c7a9f46 Mon Sep 17 00:00:00 2001
+From: Natanael Copa <ncopa@alpinelinux.org>
+Date: Wed, 25 Jan 2017 12:43:29 +0100
+Subject: [PATCH] Create socket on first sendto if family agnostic udp() was
+ used
+
+Create socket and set family on first sendto() if udp() was created
+without address family.
+
+Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
+---
+ src/udp.c | 21 +++++++++++++++++++++
+ 1 file changed, 21 insertions(+)
+
+diff --git a/src/udp.c b/src/udp.c
+index ec97252..605c195 100644
+--- a/src/udp.c
++++ b/src/udp.c
+@@ -189,6 +189,27 @@ static int meth_sendto(lua_State *L) {
+         lua_pushstring(L, gai_strerror(err));
+         return 2;
+     }
++
++    /* create socket if on first sendto if AF_UNSPEC was set */
++    if (udp->family == AF_UNSPEC && udp->sock == SOCKET_INVALID) {
++        struct addrinfo *ap;
++        const char *errstr = NULL;
++        for (ap = ai; ap != NULL; ap = ap->ai_next) {
++            errstr = inet_trycreate(&udp->sock, ap->ai_family, SOCK_DGRAM, 0);
++            if (errstr == NULL) {
++                socket_setnonblocking(&udp->sock);
++                udp->family = ap->ai_family;
++                break;
++            }
++        }
++        if (errstr != NULL) {
++            lua_pushnil(L);
++            lua_pushstring(L, errstr);
++            freeaddrinfo(ai);
++            return 2;
++        }
++    }
++
+     timeout_markstart(tm);
+     err = socket_sendto(&udp->sock, data, count, &sent, ai->ai_addr,
+         (socklen_t) ai->ai_addrlen, tm);
+-- 
+2.11.0
+