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#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include "socket.h"
#include "uint16.h"
int socket_bind4(int s,char ip[4],u16 port)
{
struct sockaddr_in sa;
memset(&sa,0,sizeof sa);
sa.sin_family = AF_INET;
u16_pack_big((char *) &sa.sin_port,port);
memcpy((char *) &sa.sin_addr,ip,4);
return bind(s,(struct sockaddr *) &sa,sizeof sa);
}
int socket_bind4_reuse(int s,char ip[4],u16 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);
}
}
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