iperf3/src/net.h

/*
 * Copyright (c) 2009-2011, The Regents of the University of California,
 * through Lawrence Berkeley National Laboratory (subject to receipt of any
 * required approvals from the U.S. Dept. of Energy).  All rights reserved.
 *
 * This code is distributed under a BSD style license, see the LICENSE file
 * for complete information.
 */

#ifndef __NET_H
#define __NET_H

int netdial(int domain, int proto, char *local, char *server, int port);
int netannounce(int domain, int proto, char *local, int port);
int Nread(int fd, char *buf, size_t count, int prot);
int Nwrite(int fd, const char *buf, size_t count, int prot) /* __attribute__((hot)) */;
int has_sendfile(void);
int Nsendfile(int fromfd, int tofd, const char *buf, size_t count) /* __attribute__((hot)) */;
int getsock_tcp_mss(int inSock);
int set_tcp_options(int sock, int no_delay, int mss);
int setnonblocking(int fd);

#define NET_SOFTERROR -1
#define NET_HARDERROR -2

unsigned long long htonll(unsigned long long);
unsigned long long ntohll(unsigned long long);

/* XXX: Need a better check for byte order */
#if BYTE_ORDER == BIG_ENDIAN
#define HTONLL(n) (n)
#define NTOHLL(n) (n)
#else
#define HTONLL(n) ((((unsigned long long)(n) & 0xFF) << 56) | \
                   (((unsigned long long)(n) & 0xFF00) << 40) | \
                   (((unsigned long long)(n) & 0xFF0000) << 24) | \
                   (((unsigned long long)(n) & 0xFF000000) << 8) | \
                   (((unsigned long long)(n) & 0xFF00000000) >> 8) | \
                   (((unsigned long long)(n) & 0xFF0000000000) >> 24) | \
                   (((unsigned long long)(n) & 0xFF000000000000) >> 40) | \
                   (((unsigned long long)(n) & 0xFF00000000000000) >> 56))

#define NTOHLL(n) ((((unsigned long long)(n) & 0xFF) << 56) | \
                   (((unsigned long long)(n) & 0xFF00) << 40) | \
                   (((unsigned long long)(n) & 0xFF0000) << 24) | \
                   (((unsigned long long)(n) & 0xFF000000) << 8) | \
                   (((unsigned long long)(n) & 0xFF00000000) >> 8) | \
                   (((unsigned long long)(n) & 0xFF0000000000) >> 24) | \
                   (((unsigned long long)(n) & 0xFF000000000000) >> 40) | \
                   (((unsigned long long)(n) & 0xFF00000000000000) >> 56))
#endif

#define htonll(n) HTONLL(n)
#define ntohll(n) NTOHLL(n)

#endif