Mirror of :pserver:cvs@cvs.fefe.de:/cvs libowfat https://www.fefe.de/libowfat/
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#include "socket.h"
#ifndef __MINGW32__
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#endif
#include <errno.h>
#if defined(TCP_FASTOPEN) && !defined(SOL_TCP) && defined(IPPROTO_TCP)
#define SOL_TCP IPPROTO_TCP
#endif
int socket_fastopen(int s) {
#if defined(SOL_TCP) && defined(TCP_FASTOPEN)
return setsockopt(s,SOL_TCP,TCP_FASTOPEN,(int[]){ 5 }, sizeof(int));
#else
#ifdef ENOPROTOOPT
errno=ENOPROTOOPT;
#else
errno=ENOSYS;
#endif
return -1;
#endif
}