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-rw-r--r--inet/Makefile3
-rw-r--r--inet/getnameinfo.c238
-rw-r--r--inet/in6_addr.c28
-rw-r--r--inet/net/ethernet.h76
-rw-r--r--inet/netinet/ip.h167
-rw-r--r--inet/netinet/tcp.h112
6 files changed, 344 insertions, 280 deletions
diff --git a/inet/Makefile b/inet/Makefile
index e965390a63..02e10335f4 100644
--- a/inet/Makefile
+++ b/inet/Makefile
@@ -43,7 +43,8 @@ routines := ntohl ntohs htonl htons \
ether_ntoa ether_ntoa_r ether_ntoh \
rcmd rexec ruserpass \
getnetgrent_r getnetgrent \
- getaliasent_r getaliasent getaliasname getaliasname_r
+ getaliasent_r getaliasent getaliasname getaliasname_r \
+ in6_addr getnameinfo
# No warnings about losing BSD code.
CFLAGS-rcmd.c = -w
diff --git a/inet/getnameinfo.c b/inet/getnameinfo.c
new file mode 100644
index 0000000000..b9454f6396
--- /dev/null
+++ b/inet/getnameinfo.c
@@ -0,0 +1,238 @@
+/* The Inner Net License, Version 2.00
+
+ The author(s) grant permission for redistribution and use in source and
+binary forms, with or without modification, of the software and documentation
+provided that the following conditions are met:
+
+0. If you receive a version of the software that is specifically labelled
+ as not being for redistribution (check the version message and/or README),
+ you are not permitted to redistribute that version of the software in any
+ way or form.
+1. All terms of the all other applicable copyrights and licenses must be
+ followed.
+2. Redistributions of source code must retain the authors' copyright
+ notice(s), this list of conditions, and the following disclaimer.
+3. Redistributions in binary form must reproduce the authors' copyright
+ notice(s), this list of conditions, and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+4. All advertising materials mentioning features or use of this software
+ must display the following acknowledgement with the name(s) of the
+ authors as specified in the copyright notice(s) substituted where
+ indicated:
+
+ This product includes software developed by <name(s)>, The Inner
+ Net, and other contributors.
+
+5. Neither the name(s) of the author(s) nor the names of its contributors
+ may be used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY ITS AUTHORS AND CONTRIBUTORS ``AS IS'' AND ANY
+EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+ If these license terms cause you a real problem, contact the author. */
+
+/* This software is Copyright 1996 by Craig Metz, All Rights Reserved. */
+
+#define INET6 1
+#define LOCAL 1
+#define HOSTTABLE 0
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <netinet/in.h>
+#if LOCAL
+#include <sys/un.h>
+#include <sys/utsname.h>
+#endif /* LOCAL */
+#include <netdb.h>
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#ifndef AF_LOCAL
+#define AF_LOCAL AF_UNIX
+#endif /* AF_LOCAL */
+
+#if HOSTTABLE
+struct hostent *_addr2hostname_hosts(const char *, int, int);
+#endif /* HOSTTABLE */
+
+#ifndef MAXHOSTNAMELEN
+#define MAXHOSTNAMELEN 128
+#endif
+
+#ifndef min
+#define min(x,y) (((x) > (y)) ? (y) : (x))
+#endif /* min */
+
+static char *domain;
+static char domainbuffer[MAXHOSTNAMELEN];
+
+
+static char *
+nrl_domainname (void)
+{
+ static int first = 1;
+
+ if (first) {
+ char *c;
+ struct hostent *h;
+
+ first = 0;
+
+ if ((h = gethostbyname("localhost")) && (c = strchr(h->h_name, '.')))
+ return strcpy(domain = domainbuffer, ++c);
+
+ if (!gethostname(domainbuffer, sizeof(domainbuffer))) {
+ if (c = strchr(domainbuffer, '.'))
+ return (domain = ++c);
+
+ if ((h = gethostbyname(domainbuffer)) && (c = strchr(h->h_name, '.')))
+ return strcpy(domain = domainbuffer, ++c);
+ }
+
+ {
+ struct in_addr in_addr;
+
+ in_addr.s_addr = htonl(0x7f000001);
+
+ if ((h = gethostbyaddr((const char *)&in_addr, sizeof(struct in_addr), AF_INET)) && (c = strchr(h->h_name, '.')))
+ return strcpy(domain = domainbuffer, ++c);
+ }
+
+ return NULL;
+ };
+
+ return domain;
+};
+
+int getnameinfo(const struct sockaddr *sa, size_t addrlen, char *host, size_t hostlen, char *serv, size_t servlen, int flags)
+{
+ int serrno = errno;
+
+ if (!sa)
+ return -1;
+
+ if (host && (hostlen > 0))
+ switch(sa->sa_family) {
+ case AF_INET:
+#if INET6
+ case AF_INET6:
+#endif /* INET6 */
+ if (!(flags & NI_NUMERICHOST)) {
+ struct hostent *h = NULL;
+#if HOSTTABLE
+#if INET6
+ if (sa->sa_family == AF_INET6)
+ h = _addr2hostname_hosts((void *)&(((struct sockaddr_in6 *)sa)->sin6_addr), sizeof(struct in6_addr), AF_INET6);
+ else
+#endif /* INET6 */
+ h = _addr2hostname_hosts((void *)&(((struct sockaddr_in *)sa)->sin_addr), sizeof(struct in_addr), AF_INET);
+#endif /* HOSTTABLE */
+
+#if RESOLVER
+ if (!h) {
+#if INET6
+ if (sa->sa_family == AF_INET6)
+ h = gethostbyaddr((void *)&(((struct sockaddr_in6 *)sa)->sin6_addr), sizeof(struct in6_addr), AF_INET6);
+ else
+#endif /* INET6 */
+ h = gethostbyaddr((void *)&(((struct sockaddr_in *)sa)->sin_addr), sizeof(struct in_addr), AF_INET);
+ endhostent();
+ };
+#endif /* RESOLVER */
+
+ if (h) {
+ if (flags & NI_NOFQDN) {
+ char *c;
+ if ((c = nrl_domainname()) && (c = strstr(h->h_name, c)) && (c != h->h_name) && (*(--c) == '.')) {
+ strncpy(host, h->h_name, min(hostlen, (c - h->h_name)));
+ break;
+ };
+ };
+ strncpy(host, h->h_name, hostlen);
+ break;
+ };
+ };
+
+ if (flags & NI_NAMEREQD)
+ goto fail;
+
+ {
+ const char *c;
+#if INET6
+ if (sa->sa_family == AF_INET6)
+ c = inet_ntop(AF_INET6, (void *)&(((struct sockaddr_in6 *)sa)->sin6_addr), host, hostlen);
+ else
+#endif /* INET6 */
+ c = inet_ntop(AF_INET, (void *)&(((struct sockaddr_in *)sa)->sin_addr), host, hostlen);
+
+ if (!c)
+ goto fail;
+ };
+ break;
+#if LOCAL
+ case AF_LOCAL:
+ if (!(flags & NI_NUMERICHOST)) {
+ struct utsname utsname;
+
+ if (!uname(&utsname)) {
+ strncpy(host, utsname.nodename, hostlen);
+ break;
+ };
+ };
+
+ if (flags & NI_NAMEREQD)
+ goto fail;
+
+ strncpy(host, "localhost", hostlen);
+ break;
+#endif /* LOCAL */
+ default:
+ return -1;
+ };
+
+ if (serv && (servlen > 0))
+ switch(sa->sa_family) {
+ case AF_INET:
+#if INET6
+ case AF_INET6:
+#endif /* INET6 */
+ if (!(flags & NI_NUMERICSERV)) {
+ struct servent *s;
+ if (s = getservbyport(((struct sockaddr_in *)sa)->sin_port, (flags & NI_DGRAM) ? "udp" : "tcp")) {
+ strncpy(serv, s->s_name, servlen);
+ break;
+ };
+ };
+ snprintf(serv, servlen, "%d", ntohs(((struct sockaddr_in *)sa)->sin_port));
+ break;
+#if LOCAL
+ case AF_LOCAL:
+ strncpy(serv, ((struct sockaddr_un *)sa)->sun_path, servlen);
+ break;
+#endif /* LOCAL */
+ };
+
+ if (host && (hostlen > 0))
+ host[hostlen-1] = 0;
+ if (serv && (servlen > 0))
+ serv[servlen-1] = 0;
+ errno = serrno;
+ return 0;
+
+fail:
+ errno = serrno;
+ return -1;
+};
diff --git a/inet/in6_addr.c b/inet/in6_addr.c
new file mode 100644
index 0000000000..a68990e160
--- /dev/null
+++ b/inet/in6_addr.c
@@ -0,0 +1,28 @@
+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Philip Blundell <pjb27@cam.ac.uk>, 1997.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <netinet/in.h>
+
+const struct in6_addr in6addr_any = { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } };
+const struct in6_addr in6addr_loopback = { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } };
+
+int inet6_isipv4mapped(const struct in6_addr *addr)
+{
+ return IN6_IS_ADDR_V4MAPPED(addr);
+}
diff --git a/inet/net/ethernet.h b/inet/net/ethernet.h
new file mode 100644
index 0000000000..89a92c53f1
--- /dev/null
+++ b/inet/net/ethernet.h
@@ -0,0 +1,76 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+/* Based on the FreeBSD version of this file. Curiously, that file
+ lacks a copyright in the header. */
+
+#ifndef __NET_ETHERNET_H
+#define __NET_ETHERNET_H 1
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <linux/if_ether.h> /* IEEE 802.3 Ethernet constants */
+
+__BEGIN_DECLS
+
+/* This is a name for the 48 bit ethernet address available on many
+ systems. */
+struct ether_addr
+{
+ u_int8_t ether_addr_octet[ETH_ALEN];
+};
+
+/* 10Mb/s ethernet header */
+struct ether_header
+{
+ u_int8_t ether_dhost[ETH_ALEN]; /* destination eth addr */
+ u_int8_t ether_shost[ETH_ALEN]; /* source ether addr */
+ u_int16_t ether_type; /* packet type ID field */
+};
+
+/* Ethernet protocol ID's */
+#define ETHERTYPE_PUP 0x0200 /* Xerox PUP */
+#define ETHERTYPE_IP 0x0800 /* IP */
+#define ETHERTYPE_ARP 0x0806 /* Address resolution */
+#define ETHERTYPE_REVARP 0x8035 /* Reverse ARP */
+
+#define ETHER_ADDR_LEN ETH_ALEN /* size of ethernet addr */
+#define ETHER_TYPE_LEN 2 /* bytes in type field */
+#define ETHER_CRC_LEN 4 /* bytes in CRC field */
+#define ETHER_HDR_LEN ETH_HLEN /* total octets in header */
+#define ETHER_MIN_LEN (ETH_ZLEN + ETH_CRC_LEN) /* min packet length */
+#define ETHER_MAX_LEN (ETH_FRAME_LEN + ETH_CRC_LEN) /* max packet length */
+
+/* make sure ethenet length is valid */
+#define ETHER_IS_VALID_LEN(foo) \
+ ((foo) >= ETHER_MIN_LEN && (foo) <= ETHER_MAX_LEN)
+
+/*
+ * The ETHERTYPE_NTRAILER packet types starting at ETHERTYPE_TRAIL have
+ * (type-ETHERTYPE_TRAIL)*512 bytes of data followed
+ * by an ETHER type (as given above) and then the (variable-length) header.
+ */
+#define ETHERTYPE_TRAIL 0x1000 /* Trailer packet */
+#define ETHERTYPE_NTRAILER 16
+
+#define ETHERMTU ETH_DATA_LEN
+#define ETHERMIN (ETHER_MIN_LEN-ETHER_HDR_LEN-ETHER_CRC_LEN)
+
+__END_DECLS
+
+#endif /* net/ethernet.h */
diff --git a/inet/netinet/ip.h b/inet/netinet/ip.h
deleted file mode 100644
index 191ac8e9c8..0000000000
--- a/inet/netinet/ip.h
+++ /dev/null
@@ -1,167 +0,0 @@
-/*
- * Copyright (c) 1982, 1986, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)ip.h 8.1 (Berkeley) 6/10/93
- */
-
-#include <gnu/types.h>
-#include <endian.h>
-#include <netinet/in.h>
-
-/*
- * Definitions for internet protocol version 4.
- * Per RFC 791, September 1981.
- */
-#define IPVERSION 4
-
-/*
- * Structure of an internet header, naked of options.
- */
-struct ip {
-#if __BYTE_ORDER == __LITTLE_ENDIAN
- __u_char ip_hl:4, /* header length */
- ip_v:4; /* version */
-#endif
-#if __BYTE_ORDER == __BIG_ENDIAN
- __u_char ip_v:4, /* version */
- ip_hl:4; /* header length */
-#endif
- __u_char ip_tos; /* type of service */
- __u_short ip_len; /* total length */
- __u_short ip_id; /* identification */
- __u_short ip_off; /* fragment offset field */
-#define IP_RF 0x8000 /* reserved fragment flag */
-#define IP_DF 0x4000 /* dont fragment flag */
-#define IP_MF 0x2000 /* more fragments flag */
-#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */
- __u_char ip_ttl; /* time to live */
- __u_char ip_p; /* protocol */
- __u_short ip_sum; /* checksum */
- struct in_addr ip_src, ip_dst; /* source and dest address */
-};
-
-#define IP_MAXPACKET 65535 /* maximum packet size */
-
-/*
- * Definitions for IP type of service (ip_tos)
- */
-#define IPTOS_LOWDELAY 0x10
-#define IPTOS_THROUGHPUT 0x08
-#define IPTOS_RELIABILITY 0x04
-#define IPTOS_LOWCOST 0x02
-#define IPTOS_MINCOST IPTOS_LOWCOST
-
-/*
- * Definitions for IP precedence (also in ip_tos) (hopefully unused)
- */
-#define IPTOS_PREC_NETCONTROL 0xe0
-#define IPTOS_PREC_INTERNETCONTROL 0xc0
-#define IPTOS_PREC_CRITIC_ECP 0xa0
-#define IPTOS_PREC_FLASHOVERRIDE 0x80
-#define IPTOS_PREC_FLASH 0x60
-#define IPTOS_PREC_IMMEDIATE 0x40
-#define IPTOS_PREC_PRIORITY 0x20
-#define IPTOS_PREC_ROUTINE 0x00
-
-/*
- * Definitions for options.
- */
-#define IPOPT_COPIED(o) ((o)&0x80)
-#define IPOPT_CLASS(o) ((o)&0x60)
-#define IPOPT_NUMBER(o) ((o)&0x1f)
-
-#define IPOPT_CONTROL 0x00
-#define IPOPT_RESERVED1 0x20
-#define IPOPT_DEBMEAS 0x40
-#define IPOPT_RESERVED2 0x60
-
-#define IPOPT_EOL 0 /* end of option list */
-#define IPOPT_NOP 1 /* no operation */
-
-#define IPOPT_RR 7 /* record packet route */
-#define IPOPT_TS 68 /* timestamp */
-#define IPOPT_SECURITY 130 /* provide s,c,h,tcc */
-#define IPOPT_LSRR 131 /* loose source route */
-#define IPOPT_SATID 136 /* satnet id */
-#define IPOPT_SSRR 137 /* strict source route */
-
-/*
- * Offsets to fields in options other than EOL and NOP.
- */
-#define IPOPT_OPTVAL 0 /* option ID */
-#define IPOPT_OLEN 1 /* option length */
-#define IPOPT_OFFSET 2 /* offset within option */
-#define IPOPT_MINOFF 4 /* min value of above */
-
-#define MAX_IPOPTLEN 40
-
-/*
- * Time stamp option structure.
- */
-struct ip_timestamp {
- __u_char ipt_code; /* IPOPT_TS */
- __u_char ipt_len; /* size of structure (variable) */
- __u_char ipt_ptr; /* index of current entry */
-#if __BYTE_ORDER == __LITTLE_ENDIAN
- __u_char ipt_flg:4, /* flags, see below */
- ipt_oflw:4; /* overflow counter */
-#endif
-#if __BYTE_ORDER == __BIG_ENDIAN
- __u_char ipt_oflw:4, /* overflow counter */
- ipt_flg:4; /* flags, see below */
-#endif
- __u_long data[9];
-};
-
-/* flag bits for ipt_flg */
-#define IPOPT_TS_TSONLY 0 /* timestamps only */
-#define IPOPT_TS_TSANDADDR 1 /* timestamps and addresses */
-#define IPOPT_TS_PRESPEC 3 /* specified modules only */
-
-/* bits for security (not byte swapped) */
-#define IPOPT_SECUR_UNCLASS 0x0000
-#define IPOPT_SECUR_CONFID 0xf135
-#define IPOPT_SECUR_EFTO 0x789a
-#define IPOPT_SECUR_MMMM 0xbc4d
-#define IPOPT_SECUR_RESTR 0xaf13
-#define IPOPT_SECUR_SECRET 0xd788
-#define IPOPT_SECUR_TOPSECRET 0x6bc5
-
-/*
- * Internet implementation parameters.
- */
-#define MAXTTL 255 /* maximum time to live (seconds) */
-#define IPDEFTTL 64 /* default ttl, from RFC 1340 */
-#define IPFRAGTTL 60 /* time to live for frags, slowhz */
-#define IPTTLDEC 1 /* subtracted when forwarding */
-
-#define IP_MSS 576 /* default maximum segment size */
diff --git a/inet/netinet/tcp.h b/inet/netinet/tcp.h
deleted file mode 100644
index e5011b053c..0000000000
--- a/inet/netinet/tcp.h
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * Copyright (c) 1982, 1986, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)tcp.h 8.1 (Berkeley) 6/10/93
- */
-
-#ifndef _NETINET_TCP_H
-
-#define _NETINET_TCP_H 1
-#include <sys/cdefs.h>
-
-
-__BEGIN_DECLS
-
-typedef unsigned int tcp_seq;
-/*
- * TCP header.
- * Per RFC 793, September, 1981.
- */
-struct tcphdr {
- u_short th_sport; /* source port */
- u_short th_dport; /* destination port */
- tcp_seq th_seq; /* sequence number */
- tcp_seq th_ack; /* acknowledgement number */
-#if __BYTE_ORDER == __LITTLE_ENDIAN
- u_char th_x2:4, /* (unused) */
- th_off:4; /* data offset */
-#endif
-#if __BYTE_ORDER == __BIG_ENDIAN
- u_char th_off:4, /* data offset */
- th_x2:4; /* (unused) */
-#endif
- u_char th_flags;
-#define TH_FIN 0x01
-#define TH_SYN 0x02
-#define TH_RST 0x04
-#define TH_PUSH 0x08
-#define TH_ACK 0x10
-#define TH_URG 0x20
- u_short th_win; /* window */
- u_short th_sum; /* checksum */
- u_short th_urp; /* urgent pointer */
-};
-
-#define TCPOPT_EOL 0
-#define TCPOPT_NOP 1
-#define TCPOPT_MAXSEG 2
-#define TCPOLEN_MAXSEG 4
-#define TCPOPT_WINDOW 3
-#define TCPOLEN_WINDOW 3
-#define TCPOPT_SACK_PERMITTED 4 /* Experimental */
-#define TCPOLEN_SACK_PERMITTED 2
-#define TCPOPT_SACK 5 /* Experimental */
-#define TCPOPT_TIMESTAMP 8
-#define TCPOLEN_TIMESTAMP 10
-#define TCPOLEN_TSTAMP_APPA (TCPOLEN_TIMESTAMP+2) /* appendix A */
-
-#define TCPOPT_TSTAMP_HDR \
- (TCPOPT_NOP<<24|TCPOPT_NOP<<16|TCPOPT_TIMESTAMP<<8|TCPOLEN_TIMESTAMP)
-
-/*
- * Default maximum segment size for TCP.
- * With an IP MSS of 576, this is 536,
- * but 512 is probably more convenient.
- * This should be defined as MIN(512, IP_MSS - sizeof (struct tcpiphdr)).
- */
-#define TCP_MSS 512
-
-#define TCP_MAXWIN 65535 /* largest value for (unscaled) window */
-
-#define TCP_MAX_WINSHIFT 14 /* maximum window shift */
-
-/*
- * User-settable options (used with setsockopt).
- */
-#define TCP_NODELAY 0x01 /* don't delay send to coalesce packets */
-#define TCP_MAXSEG 0x02 /* set maximum segment size */
-
-#define SOL_TCP 6 /* TCP level */
-
-__END_DECLS
-
-#endif /* netinet/tcp.h */