From 0e5b2871ca6456b01d4bf037a6e68badf1ff1a41 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Henryk=20Pl=C3=B6tz?= Date: Fri, 3 Oct 2014 19:58:52 +0200 Subject: Initial commit of djbdns-1.05.tar.gz Source was http://cr.yp.to/djbdns/djbdns-1.05.tar.gz, SHA1 2efdb3a039d0c548f40936aa9cb30829e0ce8c3d --- socket_bind.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 socket_bind.c (limited to 'socket_bind.c') diff --git a/socket_bind.c b/socket_bind.c new file mode 100644 index 0000000..20830a4 --- /dev/null +++ b/socket_bind.c @@ -0,0 +1,33 @@ +#include +#include +#include +#include +#include "byte.h" +#include "socket.h" + +int socket_bind4(int s,char ip[4],uint16 port) +{ + struct sockaddr_in sa; + + byte_zero(&sa,sizeof sa); + sa.sin_family = AF_INET; + uint16_pack_big((char *) &sa.sin_port,port); + byte_copy((char *) &sa.sin_addr,4,ip); + + return bind(s,(struct sockaddr *) &sa,sizeof sa); +} + +int socket_bind4_reuse(int s,char ip[4],uint16 port) +{ + int opt = 1; + setsockopt(s,SOL_SOCKET,SO_REUSEADDR,&opt,sizeof opt); + return socket_bind4(s,ip,port); +} + +void socket_tryreservein(int s,int size) +{ + while (size >= 1024) { + if (setsockopt(s,SOL_SOCKET,SO_RCVBUF,&size,sizeof size) == 0) return; + size -= (size >> 5); + } +} -- cgit v1.2.3