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authorDavid E. O'Brien <obrien@FreeBSD.org>1999-02-10 09:10:13 +0000
committerDavid E. O'Brien <obrien@FreeBSD.org>1999-02-10 09:10:13 +0000
commitcd2d014aab8332077aba9b0f6e0d06678fbe1aff (patch)
tree238471ef1d73dff2645de45ab083d2123bf56b83 /contrib/isc-dhcp/includes
downloadsrc-cd2d014aab8332077aba9b0f6e0d06678fbe1aff.tar.gz
src-cd2d014aab8332077aba9b0f6e0d06678fbe1aff.zip
Virgin import of ISC-DHCP v2.0b1pl6vendor/isc-dhcp/2.0b1-pl.6
Notes
Notes: svn path=/vendor/isc-dhcp/dist/; revision=43829 svn path=/vendor/isc-dhcp/2.0b1-pl.6/; revision=43831; tag=vendor/isc-dhcp/2.0b1-pl.6
Diffstat (limited to 'contrib/isc-dhcp/includes')
-rw-r--r--contrib/isc-dhcp/includes/arpa/nameser.h237
-rw-r--r--contrib/isc-dhcp/includes/cdefs.h57
-rw-r--r--contrib/isc-dhcp/includes/cf/freebsd.h89
-rw-r--r--contrib/isc-dhcp/includes/dhcp.h167
-rw-r--r--contrib/isc-dhcp/includes/dhcpd.h947
-rw-r--r--contrib/isc-dhcp/includes/dhctoken.h131
-rw-r--r--contrib/isc-dhcp/includes/hash.h56
-rw-r--r--contrib/isc-dhcp/includes/inet.h52
-rw-r--r--contrib/isc-dhcp/includes/netinet/if_ether.h74
-rw-r--r--contrib/isc-dhcp/includes/netinet/ip.h171
-rw-r--r--contrib/isc-dhcp/includes/netinet/ip_icmp.h182
-rw-r--r--contrib/isc-dhcp/includes/netinet/udp.h47
-rw-r--r--contrib/isc-dhcp/includes/osdep.h220
-rw-r--r--contrib/isc-dhcp/includes/site.h100
-rw-r--r--contrib/isc-dhcp/includes/sysconf.h52
-rw-r--r--contrib/isc-dhcp/includes/tree.h107
16 files changed, 2689 insertions, 0 deletions
diff --git a/contrib/isc-dhcp/includes/arpa/nameser.h b/contrib/isc-dhcp/includes/arpa/nameser.h
new file mode 100644
index 000000000000..5b38997aba01
--- /dev/null
+++ b/contrib/isc-dhcp/includes/arpa/nameser.h
@@ -0,0 +1,237 @@
+/*
+ * ++Copyright++ 1983, 1989, 1993
+ * -
+ * Copyright (c) 1983, 1989, 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.
+ * -
+ * Portions Copyright (c) 1993 by Digital Equipment Corporation.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies, and that
+ * the name of Digital Equipment Corporation not be used in advertising or
+ * publicity pertaining to distribution of the document or software without
+ * specific, written prior permission.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
+ * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ * -
+ * --Copyright--
+ */
+
+/*
+ * @(#)nameser.h 8.1 (Berkeley) 6/2/93
+ * $Id: nameser.h,v 8.3 1995/08/21 01:27:12 vixie Exp
+ */
+
+#ifndef _NAMESER_H_
+#define _NAMESER_H_
+
+/*
+ * Define constants based on rfc883
+ */
+#define PACKETSZ 512 /* maximum packet size */
+#define MAXDNAME 256 /* maximum domain name */
+#define MAXCDNAME 255 /* maximum compressed domain name */
+#define MAXLABEL 63 /* maximum length of domain label */
+#define HFIXEDSZ 12 /* #/bytes of fixed data in header */
+#define QFIXEDSZ 4 /* #/bytes of fixed data in query */
+#define RRFIXEDSZ 10 /* #/bytes of fixed data in r record */
+#define INT32SZ 4 /* for systems without 32-bit ints */
+#define INT16SZ 2 /* for systems without 16-bit ints */
+#define INADDRSZ 4 /* for sizeof(struct inaddr) != 4 */
+
+/*
+ * Internet nameserver port number
+ */
+#define NAMESERVER_PORT 53
+
+/*
+ * Currently defined opcodes
+ */
+#define QUERY 0x0 /* standard query */
+#define IQUERY 0x1 /* inverse query */
+#define STATUS 0x2 /* nameserver status query */
+/*#define xxx 0x3*/ /* 0x3 reserved */
+#define NS_NOTIFY_OP 0x4 /* notify secondary of SOA change */
+#ifdef ALLOW_UPDATES
+ /* non standard - supports ALLOW_UPDATES stuff from Mike Schwartz */
+# define UPDATEA 0x9 /* add resource record */
+# define UPDATED 0xa /* delete a specific resource record */
+# define UPDATEDA 0xb /* delete all named resource record */
+# define UPDATEM 0xc /* modify a specific resource record */
+# define UPDATEMA 0xd /* modify all named resource record */
+# define ZONEINIT 0xe /* initial zone transfer */
+# define ZONEREF 0xf /* incremental zone referesh */
+#endif
+
+/*
+ * Currently defined response codes
+ */
+#define NOERROR 0 /* no error */
+#define FORMERR 1 /* format error */
+#define SERVFAIL 2 /* server failure */
+#define NXDOMAIN 3 /* non existent domain */
+#define NOTIMP 4 /* not implemented */
+#define REFUSED 5 /* query refused */
+#ifdef ALLOW_UPDATES
+ /* non standard */
+# define NOCHANGE 0xf /* update failed to change db */
+#endif
+
+/*
+ * Type values for resources and queries
+ */
+#define T_A 1 /* host address */
+#define T_NS 2 /* authoritative server */
+#define T_MD 3 /* mail destination */
+#define T_MF 4 /* mail forwarder */
+#define T_CNAME 5 /* canonical name */
+#define T_SOA 6 /* start of authority zone */
+#define T_MB 7 /* mailbox domain name */
+#define T_MG 8 /* mail group member */
+#define T_MR 9 /* mail rename name */
+#define T_NULL 10 /* null resource record */
+#define T_WKS 11 /* well known service */
+#define T_PTR 12 /* domain name pointer */
+#define T_HINFO 13 /* host information */
+#define T_MINFO 14 /* mailbox information */
+#define T_MX 15 /* mail routing information */
+#define T_TXT 16 /* text strings */
+#define T_RP 17 /* responsible person */
+#define T_AFSDB 18 /* AFS cell database */
+#define T_X25 19 /* X_25 calling address */
+#define T_ISDN 20 /* ISDN calling address */
+#define T_RT 21 /* router */
+#define T_NSAP 22 /* NSAP address */
+#define T_NSAP_PTR 23 /* reverse NSAP lookup (deprecated) */
+#define T_SIG 24 /* security signature */
+#define T_KEY 25 /* security key */
+#define T_PX 26 /* X.400 mail mapping */
+#define T_GPOS 27 /* geographical position (withdrawn) */
+#define T_AAAA 28 /* IP6 Address */
+#define T_LOC 29 /* Location Information */
+ /* non standard */
+#define T_UINFO 100 /* user (finger) information */
+#define T_UID 101 /* user ID */
+#define T_GID 102 /* group ID */
+#define T_UNSPEC 103 /* Unspecified format (binary data) */
+ /* Query type values which do not appear in resource records */
+#define T_AXFR 252 /* transfer zone of authority */
+#define T_MAILB 253 /* transfer mailbox records */
+#define T_MAILA 254 /* transfer mail agent records */
+#define T_ANY 255 /* wildcard match */
+
+/*
+ * Values for class field
+ */
+
+#define C_IN 1 /* the arpa internet */
+#define C_CHAOS 3 /* for chaos net (MIT) */
+#define C_HS 4 /* for Hesiod name server (MIT) (XXX) */
+ /* Query class values which do not appear in resource records */
+#define C_ANY 255 /* wildcard match */
+
+/*
+ * Status return codes for T_UNSPEC conversion routines
+ */
+#define CONV_SUCCESS 0
+#define CONV_OVERFLOW (-1)
+#define CONV_BADFMT (-2)
+#define CONV_BADCKSUM (-3)
+#define CONV_BADBUFLEN (-4)
+
+/*
+ * Structure for query header. The order of the fields is machine- and
+ * compiler-dependent, depending on the byte/bit order and the layout
+ * of bit fields. We use bit fields only in int variables, as this
+ * is all ANSI requires. This requires a somewhat confusing rearrangement.
+ */
+
+typedef struct {
+ unsigned id :16; /* query identification number */
+#if BYTE_ORDER == BIG_ENDIAN
+ /* fields in third byte */
+ unsigned qr: 1; /* response flag */
+ unsigned opcode: 4; /* purpose of message */
+ unsigned aa: 1; /* authoritive answer */
+ unsigned tc: 1; /* truncated message */
+ unsigned rd: 1; /* recursion desired */
+ /* fields in fourth byte */
+ unsigned ra: 1; /* recursion available */
+ unsigned pr:1; /* primary server required (non standard) */
+ unsigned unused :2; /* unused bits (MBZ as of 4.9.3a3) */
+ unsigned rcode :4; /* response code */
+#endif
+#if BYTE_ORDER == LITTLE_ENDIAN || BYTE_ORDER == PDP_ENDIAN
+ /* fields in third byte */
+ unsigned rd :1; /* recursion desired */
+ unsigned tc :1; /* truncated message */
+ unsigned aa :1; /* authoritive answer */
+ unsigned opcode :4; /* purpose of message */
+ unsigned qr :1; /* response flag */
+ /* fields in fourth byte */
+ unsigned rcode :4; /* response code */
+ unsigned unused :2; /* unused bits (MBZ as of 4.9.3a3) */
+ unsigned pr:1; /* primary server required (non standard) */
+ unsigned ra :1; /* recursion available */
+#endif
+ /* remaining bytes */
+ unsigned qdcount :16; /* number of question entries */
+ unsigned ancount :16; /* number of answer entries */
+ unsigned nscount :16; /* number of authority entries */
+ unsigned arcount :16; /* number of resource entries */
+} HEADER;
+
+/*
+ * Defines for handling compressed domain names
+ */
+#define INDIR_MASK 0xc0
+
+/*
+ * Structure for passing resource records around.
+ */
+struct rrec {
+ int16_t r_zone; /* zone number */
+ int16_t r_class; /* class number */
+ int16_t r_type; /* type number */
+ u_int32_t r_ttl; /* time to live */
+ int r_size; /* size of data area */
+ char *r_data; /* pointer to data */
+};
+
+#endif /* !_NAMESER_H_ */
diff --git a/contrib/isc-dhcp/includes/cdefs.h b/contrib/isc-dhcp/includes/cdefs.h
new file mode 100644
index 000000000000..2bc67a5251a9
--- /dev/null
+++ b/contrib/isc-dhcp/includes/cdefs.h
@@ -0,0 +1,57 @@
+/* cdefs.h
+
+ Standard C definitions... */
+
+/*
+ * Copyright (c) 1996 The Internet Software Consortium.
+ * All Rights Reserved.
+ * Copyright (c) 1995 RadioMail Corporation. 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. Neither the name of RadioMail Corporation, the Internet Software
+ * Consortium 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 RADIOMAIL CORPORATION, THE INTERNET
+ * SOFTWARE CONSORTIUM 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 RADIOMAIL CORPORATION 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.
+ *
+ * This software was written for RadioMail Corporation by Ted Lemon
+ * under a contract with Vixie Enterprises. Further modifications have
+ * been made for the Internet Software Consortium under a contract
+ * with Vixie Laboratories.
+ */
+
+#if (defined (__GNUC__) || defined (__STDC__)) && !defined (BROKEN_ANSI)
+#define PROTO(x) x
+#define KandR(x)
+#define ANSI_DECL(x) x
+#if defined (__GNUC__)
+#define INLINE inline
+#else
+#define INLINE
+#endif /* __GNUC__ */
+#else
+#define PROTO(x) ()
+#define KandR(x) x
+#define ANSI_DECL(x)
+#define INLINE
+#endif /* __GNUC__ || __STDC__ */
diff --git a/contrib/isc-dhcp/includes/cf/freebsd.h b/contrib/isc-dhcp/includes/cf/freebsd.h
new file mode 100644
index 000000000000..965d33236f23
--- /dev/null
+++ b/contrib/isc-dhcp/includes/cf/freebsd.h
@@ -0,0 +1,89 @@
+/* freebsd.h
+
+ System dependencies for FreeBSD... */
+
+/*
+ * Copyright (c) 1996 The Internet Software Consortium. 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. Neither the name of The Internet Software Consortium 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 INTERNET SOFTWARE CONSORTIUM 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 INTERNET SOFTWARE CONSORTIUM 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.
+ *
+ * This software was written for the Internet Software Consortium by Ted Lemon
+ * under a contract with Vixie Laboratories.
+ */
+
+#define _ANSI_SOURCE
+
+#include <syslog.h>
+#include <sys/types.h>
+#include <string.h>
+#include <paths.h>
+#include <errno.h>
+#include <unistd.h>
+#include <setjmp.h>
+#include <limits.h>
+
+#include <sys/wait.h>
+#include <signal.h>
+
+extern int h_errno;
+
+#include <net/if.h>
+#include <net/if_dl.h>
+#define INADDR_LOOPBACK ((u_int32_t)0x7f000001)
+
+/* Varargs stuff... */
+#include <stdarg.h>
+#define VA_DOTDOTDOT ...
+#define va_dcl
+#define VA_start(list, last) va_start (list, last)
+
+#ifndef _PATH_DHCPD_PID
+#define _PATH_DHCPD_PID "/var/run/dhcpd.pid"
+#endif
+#ifndef _PATH_DHCPD_DB
+#define _PATH_DHCPD_DB "/var/db/dhcpd.leases"
+#endif
+#ifndef _PATH_DHCLIENT_PID
+#define _PATH_DHCLIENT_PID "/var/run/dhclient.pid"
+#endif
+#ifndef _PATH_DHCLIENT_DB
+#define _PATH_DHCLIENT_DB "/var/db/dhclient.leases"
+#endif
+
+#define EOL '\n'
+#define VOIDPTR void *
+
+/* Time stuff... */
+#include <sys/time.h>
+#define TIME time_t
+#define GET_TIME(x) time ((x))
+
+#define HAVE_SA_LEN
+
+#if defined (USE_DEFAULT_NETWORK)
+# define USE_BPF
+#endif
diff --git a/contrib/isc-dhcp/includes/dhcp.h b/contrib/isc-dhcp/includes/dhcp.h
new file mode 100644
index 000000000000..181277579527
--- /dev/null
+++ b/contrib/isc-dhcp/includes/dhcp.h
@@ -0,0 +1,167 @@
+/* dhcp.h
+
+ Protocol structures... */
+
+/*
+ * Copyright (c) 1995, 1996 The Internet Software Consortium.
+ * 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. Neither the name of The Internet Software Consortium 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 INTERNET SOFTWARE CONSORTIUM 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 INTERNET SOFTWARE CONSORTIUM 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.
+ *
+ * This software has been written for the Internet Software Consortium
+ * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
+ * Enterprises. To learn more about the Internet Software Consortium,
+ * see ``http://www.vix.com/isc''. To learn more about Vixie
+ * Enterprises, see ``http://www.vix.com''.
+ */
+
+#define DHCP_UDP_OVERHEAD (14 + /* Ethernet header */ \
+ 20 + /* IP header */ \
+ 8) /* UDP header */
+#define DHCP_SNAME_LEN 64
+#define DHCP_FILE_LEN 128
+#define DHCP_FIXED_NON_UDP 236
+#define DHCP_FIXED_LEN (DHCP_FIXED_NON_UDP + DHCP_UDP_OVERHEAD)
+ /* Everything but options. */
+#define DHCP_MTU_MAX 1500
+#define DHCP_OPTION_LEN (DHCP_MTU_MAX - DHCP_FIXED_LEN)
+
+#define BOOTP_MIN_LEN 300
+#define DHCP_MIN_LEN 548
+
+struct dhcp_packet {
+ u_int8_t op; /* Message opcode/type */
+ u_int8_t htype; /* Hardware addr type (see net/if_types.h) */
+ u_int8_t hlen; /* Hardware addr length */
+ u_int8_t hops; /* Number of relay agent hops from client */
+ u_int32_t xid; /* Transaction ID */
+ u_int16_t secs; /* Seconds since client started looking */
+ u_int16_t flags; /* Flag bits */
+ struct in_addr ciaddr; /* Client IP address (if already in use) */
+ struct in_addr yiaddr; /* Client IP address */
+ struct in_addr siaddr; /* IP address of next server to talk to */
+ struct in_addr giaddr; /* DHCP relay agent IP address */
+ unsigned char chaddr [16]; /* Client hardware address */
+ char sname [DHCP_SNAME_LEN]; /* Server name */
+ char file [DHCP_FILE_LEN]; /* Boot filename */
+ unsigned char options [DHCP_OPTION_LEN];
+ /* Optional parameters
+ (actual length dependent on MTU). */
+};
+
+/* BOOTP (rfc951) message types */
+#define BOOTREQUEST 1
+#define BOOTREPLY 2
+
+/* Possible values for flags field... */
+#define BOOTP_BROADCAST 32768L
+
+/* Possible values for hardware type (htype) field... */
+#define HTYPE_ETHER 1 /* Ethernet 10Mbps */
+#define HTYPE_IEEE802 6 /* IEEE 802.2 Token Ring... */
+
+/* Magic cookie validating dhcp options field (and bootp vendor
+ extensions field). */
+#define DHCP_OPTIONS_COOKIE "\143\202\123\143"
+
+/* DHCP Option codes: */
+
+#define DHO_PAD 0
+#define DHO_SUBNET_MASK 1
+#define DHO_TIME_OFFSET 2
+#define DHO_ROUTERS 3
+#define DHO_TIME_SERVERS 4
+#define DHO_NAME_SERVERS 5
+#define DHO_DOMAIN_NAME_SERVERS 6
+#define DHO_LOG_SERVERS 7
+#define DHO_COOKIE_SERVERS 8
+#define DHO_LPR_SERVERS 9
+#define DHO_IMPRESS_SERVERS 10
+#define DHO_RESOURCE_LOCATION_SERVERS 11
+#define DHO_HOST_NAME 12
+#define DHO_BOOT_SIZE 13
+#define DHO_MERIT_DUMP 14
+#define DHO_DOMAIN_NAME 15
+#define DHO_SWAP_SERVER 16
+#define DHO_ROOT_PATH 17
+#define DHO_EXTENSIONS_PATH 18
+#define DHO_IP_FORWARDING 19
+#define DHO_NON_LOCAL_SOURCE_ROUTING 20
+#define DHO_POLICY_FILTER 21
+#define DHO_MAX_DGRAM_REASSEMBLY 22
+#define DHO_DEFAULT_IP_TTL 23
+#define DHO_PATH_MTU_AGING_TIMEOUT 24
+#define DHO_PATH_MTU_PLATEAU_TABLE 25
+#define DHO_INTERFACE_MTU 26
+#define DHO_ALL_SUBNETS_LOCAL 27
+#define DHO_BROADCAST_ADDRESS 28
+#define DHO_PERFORM_MASK_DISCOVERY 29
+#define DHO_MASK_SUPPLIER 30
+#define DHO_ROUTER_DISCOVERY 31
+#define DHO_ROUTER_SOLICITATION_ADDRESS 32
+#define DHO_STATIC_ROUTES 33
+#define DHO_TRAILER_ENCAPSULATION 34
+#define DHO_ARP_CACHE_TIMEOUT 35
+#define DHO_IEEE802_3_ENCAPSULATION 36
+#define DHO_DEFAULT_TCP_TTL 37
+#define DHO_TCP_KEEPALIVE_INTERVAL 38
+#define DHO_TCP_KEEPALIVE_GARBAGE 39
+#define DHO_NIS_DOMAIN 40
+#define DHO_NIS_SERVERS 41
+#define DHO_NTP_SERVERS 42
+#define DHO_VENDOR_ENCAPSULATED_OPTIONS 43
+#define DHO_NETBIOS_NAME_SERVERS 44
+#define DHO_NETBIOS_DD_SERVER 45
+#define DHO_NETBIOS_NODE_TYPE 46
+#define DHO_NETBIOS_SCOPE 47
+#define DHO_FONT_SERVERS 48
+#define DHO_X_DISPLAY_MANAGER 49
+#define DHO_DHCP_REQUESTED_ADDRESS 50
+#define DHO_DHCP_LEASE_TIME 51
+#define DHO_DHCP_OPTION_OVERLOAD 52
+#define DHO_DHCP_MESSAGE_TYPE 53
+#define DHO_DHCP_SERVER_IDENTIFIER 54
+#define DHO_DHCP_PARAMETER_REQUEST_LIST 55
+#define DHO_DHCP_MESSAGE 56
+#define DHO_DHCP_MAX_MESSAGE_SIZE 57
+#define DHO_DHCP_RENEWAL_TIME 58
+#define DHO_DHCP_REBINDING_TIME 59
+#define DHO_DHCP_CLASS_IDENTIFIER 60
+#define DHO_DHCP_CLIENT_IDENTIFIER 61
+#define DHO_DHCP_USER_CLASS_ID 77
+#define DHO_END 255
+
+/* DHCP message types. */
+#define DHCPDISCOVER 1
+#define DHCPOFFER 2
+#define DHCPREQUEST 3
+#define DHCPDECLINE 4
+#define DHCPACK 5
+#define DHCPNAK 6
+#define DHCPRELEASE 7
+#define DHCPINFORM 8
diff --git a/contrib/isc-dhcp/includes/dhcpd.h b/contrib/isc-dhcp/includes/dhcpd.h
new file mode 100644
index 000000000000..cf82132bc74b
--- /dev/null
+++ b/contrib/isc-dhcp/includes/dhcpd.h
@@ -0,0 +1,947 @@
+/* dhcpd.h
+
+ Definitions for dhcpd... */
+
+/*
+ * Copyright (c) 1995, 1996, 1997, 1998 The Internet Software Consortium.
+ * 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. Neither the name of The Internet Software Consortium 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 INTERNET SOFTWARE CONSORTIUM 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 INTERNET SOFTWARE CONSORTIUM 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.
+ *
+ * This software has been written for the Internet Software Consortium
+ * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
+ * Enterprises. To learn more about the Internet Software Consortium,
+ * see ``http://www.vix.com/isc''. To learn more about Vixie
+ * Enterprises, see ``http://www.vix.com''.
+ */
+
+#ifndef __CYGWIN32__
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#else
+#define fd_set cygwin_fd_set
+#include <sys/types.h>
+#endif
+#include <fcntl.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <ctype.h>
+#include <time.h>
+
+#include "cdefs.h"
+#include "osdep.h"
+#include "dhcp.h"
+#include "tree.h"
+#include "hash.h"
+#include "inet.h"
+#include "sysconf.h"
+
+struct option_data {
+ int len;
+ u_int8_t *data;
+};
+
+struct string_list {
+ struct string_list *next;
+ char string [1];
+};
+
+/* A name server, from /etc/resolv.conf. */
+struct name_server {
+ struct name_server *next;
+ struct sockaddr_in addr;
+ TIME rcdate;
+};
+
+/* A domain search list element. */
+struct domain_search_list {
+ struct domain_search_list *next;
+ char *domain;
+ TIME rcdate;
+};
+
+/* A dhcp packet and the pointers to its option values. */
+struct packet {
+ struct dhcp_packet *raw;
+ int packet_length;
+ int packet_type;
+ int options_valid;
+ int client_port;
+ struct iaddr client_addr;
+ struct interface_info *interface; /* Interface on which packet
+ was received. */
+ struct hardware *haddr; /* Physical link address
+ of local sender (maybe gateway). */
+ struct shared_network *shared_network;
+ struct option_data options [256];
+};
+
+struct hardware {
+ u_int8_t htype;
+ u_int8_t hlen;
+ u_int8_t haddr [16];
+};
+
+/* A dhcp lease declaration structure. */
+struct lease {
+ struct lease *next;
+ struct lease *prev;
+ struct lease *n_uid, *n_hw;
+ struct lease *waitq_next;
+
+ struct iaddr ip_addr;
+ TIME starts, ends, timestamp;
+ unsigned char *uid;
+ int uid_len;
+ int uid_max;
+ unsigned char uid_buf [32];
+ char *hostname;
+ char *client_hostname;
+ struct host_decl *host;
+ struct subnet *subnet;
+ struct shared_network *shared_network;
+ struct hardware hardware_addr;
+
+ int flags;
+# define STATIC_LEASE 1
+# define BOOTP_LEASE 2
+# define DYNAMIC_BOOTP_OK 4
+# define PERSISTENT_FLAGS (DYNAMIC_BOOTP_OK)
+# define EPHEMERAL_FLAGS (BOOTP_LEASE)
+# define MS_NULL_TERMINATION 8
+# define ABANDONED_LEASE 16
+
+ struct lease_state *state;
+};
+
+struct lease_state {
+ struct lease_state *next;
+
+ struct interface_info *ip;
+
+ TIME offered_expiry;
+
+ struct tree_cache *options [256];
+ u_int32_t expiry, renewal, rebind;
+ char *filename, *server_name;
+
+ u_int32_t xid;
+ u_int16_t secs;
+ u_int16_t bootp_flags;
+ struct in_addr ciaddr;
+ struct in_addr giaddr;
+ u_int8_t hops;
+ u_int8_t offer;
+};
+
+#define ROOT_GROUP 0
+#define HOST_DECL 1
+#define SHARED_NET_DECL 2
+#define SUBNET_DECL 3
+#define CLASS_DECL 4
+#define GROUP_DECL 5
+
+/* Possible modes in which discover_interfaces can run. */
+
+#define DISCOVER_RUNNING 0
+#define DISCOVER_SERVER 1
+#define DISCOVER_UNCONFIGURED 2
+#define DISCOVER_RELAY 3
+#define DISCOVER_REQUESTED 4
+
+/* Group of declarations that share common parameters. */
+struct group {
+ struct group *next;
+
+ struct subnet *subnet;
+ struct shared_network *shared_network;
+
+ TIME default_lease_time;
+ TIME max_lease_time;
+ TIME bootp_lease_cutoff;
+ TIME bootp_lease_length;
+
+ char *filename;
+ char *server_name;
+ struct iaddr next_server;
+
+ int boot_unknown_clients;
+ int dynamic_bootp;
+ int allow_bootp;
+ int allow_booting;
+ int one_lease_per_client;
+ int get_lease_hostnames;
+ int use_host_decl_names;
+
+ struct tree_cache *options [256];
+};
+
+/* A dhcp host declaration structure. */
+struct host_decl {
+ struct host_decl *n_ipaddr;
+ char *name;
+ struct hardware interface;
+ struct tree_cache *fixed_addr;
+ struct group *group;
+};
+
+struct shared_network {
+ struct shared_network *next;
+ char *name;
+ struct subnet *subnets;
+ struct interface_info *interface;
+ struct lease *leases;
+ struct lease *insertion_point;
+ struct lease *last_lease;
+
+ struct group *group;
+};
+
+struct subnet {
+ struct subnet *next_subnet;
+ struct subnet *next_sibling;
+ struct shared_network *shared_network;
+ struct interface_info *interface;
+ struct iaddr interface_address;
+ struct iaddr net;
+ struct iaddr netmask;
+
+ struct group *group;
+};
+
+struct class {
+ char *name;
+
+ struct group *group;
+};
+
+/* DHCP client lease structure... */
+struct client_lease {
+ struct client_lease *next; /* Next lease in list. */
+ TIME expiry, renewal, rebind; /* Lease timeouts. */
+ struct iaddr address; /* Address being leased. */
+ char *server_name; /* Name of boot server. */
+ char *filename; /* Name of file we're supposed to boot. */
+ struct string_list *medium; /* Network medium. */
+
+ unsigned int is_static : 1; /* If set, lease is from config file. */
+ unsigned int is_bootp: 1; /* If set, lease was aquired with BOOTP. */
+
+ struct option_data options [256]; /* Options supplied with lease. */
+};
+
+/* Possible states in which the client can be. */
+enum dhcp_state {
+ S_REBOOTING,
+ S_INIT,
+ S_SELECTING,
+ S_REQUESTING,
+ S_BOUND,
+ S_RENEWING,
+ S_REBINDING
+};
+
+/* Configuration information from the config file... */
+struct client_config {
+ struct option_data defaults [256]; /* Default values for options. */
+ enum {
+ ACTION_DEFAULT, /* Use server value if present,
+ otherwise default. */
+ ACTION_SUPERSEDE, /* Always use default. */
+ ACTION_PREPEND, /* Prepend default to server. */
+ ACTION_APPEND, /* Append default to server. */
+ } default_actions [256];
+
+ struct option_data send_options [256]; /* Send these to server. */
+ u_int8_t required_options [256]; /* Options server must supply. */
+ u_int8_t requested_options [256]; /* Options to request from server. */
+ int requested_option_count; /* Number of requested options. */
+ TIME timeout; /* Start to panic if we don't get a
+ lease in this time period when
+ SELECTING. */
+ TIME initial_interval; /* All exponential backoff intervals
+ start here. */
+ TIME retry_interval; /* If the protocol failed to produce
+ an address before the timeout,
+ try the protocol again after this
+ many seconds. */
+ TIME select_interval; /* Wait this many seconds from the
+ first DHCPDISCOVER before
+ picking an offered lease. */
+ TIME reboot_timeout; /* When in INIT-REBOOT, wait this
+ long before giving up and going
+ to INIT. */
+ TIME backoff_cutoff; /* When doing exponential backoff,
+ never back off to an interval
+ longer than this amount. */
+ struct string_list *media; /* Possible network media values. */
+ char *script_name; /* Name of config script. */
+ enum { IGNORE, ACCEPT, PREFER } bootp_policy;
+ /* Ignore, accept or prefer BOOTP
+ responses. */
+ struct string_list *medium; /* Current network medium. */
+
+ struct iaddrlist *reject_list; /* Servers to reject. */
+};
+
+/* Per-interface state used in the dhcp client... */
+struct client_state {
+ struct client_lease *active; /* Currently active lease. */
+ struct client_lease *new; /* New lease. */
+ struct client_lease *offered_leases; /* Leases offered to us. */
+ struct client_lease *leases; /* Leases we currently hold. */
+ struct client_lease *alias; /* Alias lease. */
+
+ enum dhcp_state state; /* Current state for this interface. */
+ struct iaddr destination; /* Where to send packet. */
+ u_int32_t xid; /* Transaction ID. */
+ TIME first_sending; /* When was first copy sent? */
+ TIME interval; /* What's the current resend interval? */
+ struct string_list *medium; /* Last media type tried. */
+
+ struct dhcp_packet packet; /* Outgoing DHCP packet. */
+ int packet_length; /* Actual length of generated packet. */
+
+ struct iaddr requested_address; /* Address we would like to get. */
+
+ struct client_config *config; /* Information from config file. */
+};
+
+/* Information about each network interface. */
+
+struct interface_info {
+ struct interface_info *next; /* Next interface in list... */
+ struct shared_network *shared_network;
+ /* Networks connected to this interface. */
+ struct hardware hw_address; /* Its physical address. */
+ struct in_addr primary_address; /* Primary interface address. */
+ char name [IFNAMSIZ]; /* Its name... */
+ int rfdesc; /* Its read file descriptor. */
+ int wfdesc; /* Its write file descriptor, if
+ different. */
+ unsigned char *rbuf; /* Read buffer, if required. */
+ size_t rbuf_max; /* Size of read buffer. */
+ size_t rbuf_offset; /* Current offset into buffer. */
+ size_t rbuf_len; /* Length of data in buffer. */
+
+ struct ifreq *ifp; /* Pointer to ifreq struct. */
+ u_int32_t flags; /* Control flags... */
+#define INTERFACE_REQUESTED 1
+#define INTERFACE_AUTOMATIC 2
+
+ /* Only used by DHCP client code. */
+ struct client_state *client;
+};
+
+struct hardware_link {
+ struct hardware_link *next;
+ char name [IFNAMSIZ];
+ struct hardware address;
+};
+
+struct timeout {
+ struct timeout *next;
+ TIME when;
+ void (*func) PROTO ((void *));
+ void *what;
+};
+
+struct protocol {
+ struct protocol *next;
+ int fd;
+ void (*handler) PROTO ((struct protocol *));
+ void *local;
+};
+
+/* Bitmask of dhcp option codes. */
+typedef unsigned char option_mask [16];
+
+/* DHCP Option mask manipulation macros... */
+#define OPTION_ZERO(mask) (memset (mask, 0, 16))
+#define OPTION_SET(mask, bit) (mask [bit >> 8] |= (1 << (bit & 7)))
+#define OPTION_CLR(mask, bit) (mask [bit >> 8] &= ~(1 << (bit & 7)))
+#define OPTION_ISSET(mask, bit) (mask [bit >> 8] & (1 << (bit & 7)))
+#define OPTION_ISCLR(mask, bit) (!OPTION_ISSET (mask, bit))
+
+/* An option occupies its length plus two header bytes (code and
+ length) for every 255 bytes that must be stored. */
+#define OPTION_SPACE(x) ((x) + 2 * ((x) / 255 + 1))
+
+/* Default path to dhcpd config file. */
+#ifdef DEBUG
+#undef _PATH_DHCPD_CONF
+#define _PATH_DHCPD_CONF "dhcpd.conf"
+#undef _PATH_DHCPD_DB
+#define _PATH_DHCPD_DB "dhcpd.leases"
+#else
+#ifndef _PATH_DHCPD_CONF
+#define _PATH_DHCPD_CONF "/etc/dhcpd.conf"
+#endif
+
+#ifndef _PATH_DHCPD_DB
+#define _PATH_DHCPD_DB "/etc/dhcpd.leases"
+#endif
+
+#ifndef _PATH_DHCPD_PID
+#define _PATH_DHCPD_PID "/var/run/dhcpd.pid"
+#endif
+#endif
+
+#ifndef _PATH_DHCLIENT_CONF
+#define _PATH_DHCLIENT_CONF "/etc/dhclient.conf"
+#endif
+
+#ifndef _PATH_DHCLIENT_PID
+#define _PATH_DHCLIENT_PID "/var/run/dhclient.pid"
+#endif
+
+#ifndef _PATH_DHCLIENT_DB
+#define _PATH_DHCLIENT_DB "/etc/dhclient.leases"
+#endif
+
+#ifndef _PATH_RESOLV_CONF
+#define _PATH_RESOLV_CONF "/etc/resolv.conf"
+#endif
+
+#ifndef _PATH_DHCRELAY_PID
+#define _PATH_DHCRELAY_PID "/var/run/dhcrelay.pid"
+#endif
+
+#ifndef DHCPD_LOG_FACILITY
+#define DHCPD_LOG_FACILITY LOG_DAEMON
+#endif
+
+#define MAX_TIME 0x7fffffff
+#define MIN_TIME 0
+
+/* External definitions... */
+
+/* options.c */
+
+void parse_options PROTO ((struct packet *));
+void parse_option_buffer PROTO ((struct packet *, unsigned char *, int));
+int cons_options PROTO ((struct packet *, struct dhcp_packet *,
+ struct tree_cache **, int, int, int));
+int store_options PROTO ((unsigned char *, int, struct tree_cache **,
+ unsigned char *, int, int, int, int));
+char *pretty_print_option PROTO ((unsigned int,
+ unsigned char *, int, int, int));
+void do_packet PROTO ((struct interface_info *,
+ struct dhcp_packet *, int,
+ unsigned int, struct iaddr, struct hardware *));
+
+/* errwarn.c */
+extern int warnings_occurred;
+void error PROTO ((char *, ...));
+int warn PROTO ((char *, ...));
+int note PROTO ((char *, ...));
+int debug PROTO ((char *, ...));
+int parse_warn PROTO ((char *, ...));
+
+/* dhcpd.c */
+extern TIME cur_time;
+extern struct group root_group;
+
+extern u_int16_t local_port;
+extern u_int16_t remote_port;
+extern int log_priority;
+extern int log_perror;
+
+#ifdef USE_FALLBACK
+extern struct interface_info fallback_interface;
+#endif
+
+extern char *path_dhcpd_conf;
+extern char *path_dhcpd_db;
+extern char *path_dhcpd_pid;
+
+int main PROTO ((int, char **, char **));
+void cleanup PROTO ((void));
+void lease_pinged PROTO ((struct iaddr, u_int8_t *, int));
+void lease_ping_timeout PROTO ((void *));
+
+/* conflex.c */
+extern int lexline, lexchar;
+extern char *token_line, *tlname;
+extern char comments [4096];
+extern int comment_index;
+extern int eol_token;
+void new_parse PROTO ((char *));
+int next_token PROTO ((char **, FILE *));
+int peek_token PROTO ((char **, FILE *));
+
+/* confpars.c */
+int readconf PROTO ((void));
+void read_leases PROTO ((void));
+int parse_statement PROTO ((FILE *,
+ struct group *, int, struct host_decl *, int));
+void parse_allow_deny PROTO ((FILE *, struct group *, int));
+void skip_to_semi PROTO ((FILE *));
+int parse_boolean PROTO ((FILE *));
+int parse_semi PROTO ((FILE *));
+int parse_lbrace PROTO ((FILE *));
+void parse_host_declaration PROTO ((FILE *, struct group *));
+char *parse_host_name PROTO ((FILE *));
+void parse_class_declaration PROTO ((FILE *, struct group *, int));
+void parse_lease_time PROTO ((FILE *, TIME *));
+void parse_shared_net_declaration PROTO ((FILE *, struct group *));
+void parse_subnet_declaration PROTO ((FILE *, struct shared_network *));
+void parse_group_declaration PROTO ((FILE *, struct group *));
+void parse_hardware_param PROTO ((FILE *, struct hardware *));
+char *parse_string PROTO ((FILE *));
+struct tree *parse_ip_addr_or_hostname PROTO ((FILE *, int));
+struct tree_cache *parse_fixed_addr_param PROTO ((FILE *));
+void parse_option_param PROTO ((FILE *, struct group *));
+TIME parse_timestamp PROTO ((FILE *));
+struct lease *parse_lease_declaration PROTO ((FILE *));
+void parse_address_range PROTO ((FILE *, struct subnet *));
+TIME parse_date PROTO ((FILE *));
+unsigned char *parse_numeric_aggregate PROTO ((FILE *,
+ unsigned char *, int *,
+ int, int, int));
+void convert_num PROTO ((unsigned char *, char *, int, int));
+
+/* tree.c */
+pair cons PROTO ((caddr_t, pair));
+struct tree_cache *tree_cache PROTO ((struct tree *));
+struct tree *tree_host_lookup PROTO ((char *));
+struct dns_host_entry *enter_dns_host PROTO ((char *));
+struct tree *tree_const PROTO ((unsigned char *, int));
+struct tree *tree_concat PROTO ((struct tree *, struct tree *));
+struct tree *tree_limit PROTO ((struct tree *, int));
+int tree_evaluate PROTO ((struct tree_cache *));
+
+/* dhcp.c */
+extern int outstanding_pings;
+
+void dhcp PROTO ((struct packet *));
+void dhcpdiscover PROTO ((struct packet *));
+void dhcprequest PROTO ((struct packet *));
+void dhcprelease PROTO ((struct packet *));
+void dhcpdecline PROTO ((struct packet *));
+void dhcpinform PROTO ((struct packet *));
+void nak_lease PROTO ((struct packet *, struct iaddr *cip));
+void ack_lease PROTO ((struct packet *, struct lease *, unsigned int, TIME));
+void dhcp_reply PROTO ((struct lease *));
+struct lease *find_lease PROTO ((struct packet *,
+ struct shared_network *, int *));
+struct lease *mockup_lease PROTO ((struct packet *,
+ struct shared_network *,
+ struct host_decl *));
+
+/* bootp.c */
+void bootp PROTO ((struct packet *));
+
+/* memory.c */
+void enter_host PROTO ((struct host_decl *));
+struct host_decl *find_hosts_by_haddr PROTO ((int, unsigned char *, int));
+struct host_decl *find_hosts_by_uid PROTO ((unsigned char *, int));
+struct subnet *find_host_for_network PROTO ((struct host_decl **,
+ struct iaddr *,
+ struct shared_network *));
+void new_address_range PROTO ((struct iaddr, struct iaddr,
+ struct subnet *, int));
+extern struct subnet *find_grouped_subnet PROTO ((struct shared_network *,
+ struct iaddr));
+extern struct subnet *find_subnet PROTO ((struct iaddr));
+void enter_shared_network PROTO ((struct shared_network *));
+void enter_subnet PROTO ((struct subnet *));
+void enter_lease PROTO ((struct lease *));
+int supersede_lease PROTO ((struct lease *, struct lease *, int));
+void release_lease PROTO ((struct lease *));
+void abandon_lease PROTO ((struct lease *, char *));
+struct lease *find_lease_by_uid PROTO ((unsigned char *, int));
+struct lease *find_lease_by_hw_addr PROTO ((unsigned char *, int));
+struct lease *find_lease_by_ip_addr PROTO ((struct iaddr));
+void uid_hash_add PROTO ((struct lease *));
+void uid_hash_delete PROTO ((struct lease *));
+void hw_hash_add PROTO ((struct lease *));
+void hw_hash_delete PROTO ((struct lease *));
+struct class *add_class PROTO ((int, char *));
+struct class *find_class PROTO ((int, unsigned char *, int));
+struct group *clone_group PROTO ((struct group *, char *));
+void write_leases PROTO ((void));
+void dump_subnets PROTO ((void));
+
+/* alloc.c */
+VOIDPTR dmalloc PROTO ((int, char *));
+void dfree PROTO ((VOIDPTR, char *));
+struct packet *new_packet PROTO ((char *));
+struct dhcp_packet *new_dhcp_packet PROTO ((char *));
+struct tree *new_tree PROTO ((char *));
+struct tree_cache *new_tree_cache PROTO ((char *));
+struct hash_table *new_hash_table PROTO ((int, char *));
+struct hash_bucket *new_hash_bucket PROTO ((char *));
+struct lease *new_lease PROTO ((char *));
+struct lease *new_leases PROTO ((int, char *));
+struct subnet *new_subnet PROTO ((char *));
+struct class *new_class PROTO ((char *));
+struct shared_network *new_shared_network PROTO ((char *));
+struct group *new_group PROTO ((char *));
+struct protocol *new_protocol PROTO ((char *));
+struct lease_state *new_lease_state PROTO ((char *));
+struct domain_search_list *new_domain_search_list PROTO ((char *));
+struct name_server *new_name_server PROTO ((char *));
+void free_name_server PROTO ((struct name_server *, char *));
+void free_domain_search_list PROTO ((struct domain_search_list *, char *));
+void free_lease_state PROTO ((struct lease_state *, char *));
+void free_protocol PROTO ((struct protocol *, char *));
+void free_group PROTO ((struct group *, char *));
+void free_shared_network PROTO ((struct shared_network *, char *));
+void free_class PROTO ((struct class *, char *));
+void free_subnet PROTO ((struct subnet *, char *));
+void free_lease PROTO ((struct lease *, char *));
+void free_hash_bucket PROTO ((struct hash_bucket *, char *));
+void free_hash_table PROTO ((struct hash_table *, char *));
+void free_tree_cache PROTO ((struct tree_cache *, char *));
+void free_packet PROTO ((struct packet *, char *));
+void free_dhcp_packet PROTO ((struct dhcp_packet *, char *));
+void free_tree PROTO ((struct tree *, char *));
+
+/* print.c */
+char *print_hw_addr PROTO ((int, int, unsigned char *));
+void print_lease PROTO ((struct lease *));
+void dump_raw PROTO ((unsigned char *, int));
+void dump_packet PROTO ((struct packet *));
+void hash_dump PROTO ((struct hash_table *));
+
+/* socket.c */
+#if defined (USE_SOCKET_SEND) || defined (USE_SOCKET_RECEIVE) \
+ || defined (USE_SOCKET_FALLBACK)
+int if_register_socket PROTO ((struct interface_info *));
+#endif
+
+#ifdef USE_SOCKET_FALLBACK
+void if_reinitialize_fallback PROTO ((struct interface_info *));
+void if_register_fallback PROTO ((struct interface_info *));
+ssize_t send_fallback PROTO ((struct interface_info *,
+ struct packet *, struct dhcp_packet *, size_t,
+ struct in_addr,
+ struct sockaddr_in *, struct hardware *));
+void fallback_discard PROTO ((struct protocol *));
+#endif
+
+#ifdef USE_SOCKET_SEND
+void if_reinitialize_send PROTO ((struct interface_info *));
+void if_register_send PROTO ((struct interface_info *));
+ssize_t send_packet PROTO ((struct interface_info *,
+ struct packet *, struct dhcp_packet *, size_t,
+ struct in_addr,
+ struct sockaddr_in *, struct hardware *));
+#endif
+#ifdef USE_SOCKET_RECEIVE
+void if_reinitialize_receive PROTO ((struct interface_info *));
+void if_register_receive PROTO ((struct interface_info *));
+ssize_t receive_packet PROTO ((struct interface_info *,
+ unsigned char *, size_t,
+ struct sockaddr_in *, struct hardware *));
+#endif
+#if defined (USE_SOCKET_SEND) && !defined (USE_SOCKET_FALLBACK)
+void if_enable PROTO ((struct interface_info *));
+#endif
+
+/* bpf.c */
+#if defined (USE_BPF_SEND) || defined (USE_BPF_RECEIVE)
+int if_register_bpf PROTO ( (struct interface_info *));
+#endif
+#ifdef USE_BPF_SEND
+void if_reinitialize_send PROTO ((struct interface_info *));
+void if_register_send PROTO ((struct interface_info *));
+ssize_t send_packet PROTO ((struct interface_info *,
+ struct packet *, struct dhcp_packet *, size_t,
+ struct in_addr,
+ struct sockaddr_in *, struct hardware *));
+#endif
+#ifdef USE_BPF_RECEIVE
+void if_reinitialize_receive PROTO ((struct interface_info *));
+void if_register_receive PROTO ((struct interface_info *));
+ssize_t receive_packet PROTO ((struct interface_info *,
+ unsigned char *, size_t,
+ struct sockaddr_in *, struct hardware *));
+#endif
+#if defined (USE_BPF_SEND)
+void if_enable PROTO ((struct interface_info *));
+#endif
+
+/* nit.c */
+#if defined (USE_NIT_SEND) || defined (USE_NIT_RECEIVE)
+int if_register_nit PROTO ( (struct interface_info *));
+#endif
+
+#ifdef USE_NIT_SEND
+void if_reinitialize_send PROTO ((struct interface_info *));
+void if_register_send PROTO ((struct interface_info *));
+ssize_t send_packet PROTO ((struct interface_info *,
+ struct packet *, struct dhcp_packet *, size_t,
+ struct in_addr,
+ struct sockaddr_in *, struct hardware *));
+#endif
+#ifdef USE_NIT_RECEIVE
+void if_reinitialize_receive PROTO ((struct interface_info *));
+void if_register_receive PROTO ((struct interface_info *));
+ssize_t receive_packet PROTO ((struct interface_info *,
+ unsigned char *, size_t,
+ struct sockaddr_in *, struct hardware *));
+#endif
+#if defined (USE_BPF_SEND)
+void if_enable PROTO ((struct interface_info *));
+#endif
+
+/* raw.c */
+#ifdef USE_RAW_SEND
+void if_reinitialize_send PROTO ((struct interface_info *));
+void if_register_send PROTO ((struct interface_info *));
+ssize_t send_packet PROTO ((struct interface_info *,
+ struct packet *, struct dhcp_packet *, size_t,
+ struct in_addr,
+ struct sockaddr_in *, struct hardware *));
+#endif
+
+/* dispatch.c */
+extern struct interface_info *interfaces, *dummy_interfaces;
+extern struct protocol *protocols;
+extern int quiet_interface_discovery;
+extern void (*bootp_packet_handler) PROTO ((struct interface_info *,
+ struct dhcp_packet *, int,
+ unsigned int,
+ struct iaddr, struct hardware *));
+extern struct timeout *timeouts;
+void discover_interfaces PROTO ((int));
+void reinitialize_interfaces PROTO ((void));
+void dispatch PROTO ((void));
+int locate_network PROTO ((struct packet *));
+void add_timeout PROTO ((TIME, void (*) PROTO ((void *)), void *));
+#if 0
+void add_fast_timeout PROTO ((UTIME, void (*) PROTO ((void *)), void *));
+#endif
+void cancel_timeout PROTO ((void (*) PROTO ((void *)), void *));
+void add_protocol PROTO ((char *, int,
+ void (*) PROTO ((struct protocol *)), void *));
+
+void remove_protocol PROTO ((struct protocol *));
+
+/* hash.c */
+struct hash_table *new_hash PROTO ((void));
+void add_hash PROTO ((struct hash_table *, unsigned char *,
+ int, unsigned char *));
+void delete_hash_entry PROTO ((struct hash_table *, unsigned char *, int));
+unsigned char *hash_lookup PROTO ((struct hash_table *, unsigned char *, int));
+
+/* tables.c */
+extern struct option dhcp_options [256];
+extern unsigned char dhcp_option_default_priority_list [];
+extern int sizeof_dhcp_option_default_priority_list;
+extern char *hardware_types [256];
+extern struct hash_table universe_hash;
+extern struct universe dhcp_universe;
+void initialize_universes PROTO ((void));
+
+/* convert.c */
+u_int32_t getULong PROTO ((unsigned char *));
+int32_t getLong PROTO ((unsigned char *));
+u_int16_t getUShort PROTO ((unsigned char *));
+int16_t getShort PROTO ((unsigned char *));
+void putULong PROTO ((unsigned char *, u_int32_t));
+void putLong PROTO ((unsigned char *, int32_t));
+void putUShort PROTO ((unsigned char *, unsigned int));
+void putShort PROTO ((unsigned char *, int));
+
+/* inet.c */
+struct iaddr subnet_number PROTO ((struct iaddr, struct iaddr));
+struct iaddr ip_addr PROTO ((struct iaddr, struct iaddr, u_int32_t));
+struct iaddr broadcast_addr PROTO ((struct iaddr, struct iaddr));
+u_int32_t host_addr PROTO ((struct iaddr, struct iaddr));
+int addr_eq PROTO ((struct iaddr, struct iaddr));
+char *piaddr PROTO ((struct iaddr));
+
+/* dhclient.c */
+extern char *path_dhclient_conf;
+extern char *path_dhclient_db;
+extern char *path_dhclient_pid;
+extern int interfaces_requested;
+
+extern struct client_config top_level_config;
+
+void dhcpoffer PROTO ((struct packet *));
+void dhcpack PROTO ((struct packet *));
+void dhcpnak PROTO ((struct packet *));
+
+void send_discover PROTO ((void *));
+void send_request PROTO ((void *));
+void send_release PROTO ((void *));
+void send_decline PROTO ((void *));
+
+void state_reboot PROTO ((void *));
+void state_init PROTO ((void *));
+void state_selecting PROTO ((void *));
+void state_requesting PROTO ((void *));
+void state_bound PROTO ((void *));
+void state_panic PROTO ((void *));
+
+void bind_lease PROTO ((struct interface_info *));
+
+void make_discover PROTO ((struct interface_info *, struct client_lease *));
+void make_request PROTO ((struct interface_info *, struct client_lease *));
+void make_decline PROTO ((struct interface_info *, struct client_lease *));
+void make_release PROTO ((struct interface_info *, struct client_lease *));
+
+void free_client_lease PROTO ((struct client_lease *));
+void rewrite_client_leases PROTO ((void));
+void write_client_lease PROTO ((struct interface_info *,
+ struct client_lease *));
+char *dhcp_option_ev_name PROTO ((struct option *));
+
+void script_init PROTO ((struct interface_info *, char *,
+ struct string_list *));
+void script_write_params PROTO ((struct interface_info *,
+ char *, struct client_lease *));
+int script_go PROTO ((struct interface_info *));
+
+struct client_lease *packet_to_lease PROTO ((struct packet *));
+void go_daemon PROTO ((void));
+void write_client_pid_file PROTO ((void));
+void status_message PROTO ((struct sysconf_header *, void *));
+void client_location_changed PROTO ((void));
+
+/* db.c */
+int write_lease PROTO ((struct lease *));
+int commit_leases PROTO ((void));
+void db_startup PROTO ((void));
+void new_lease_file PROTO ((void));
+
+/* packet.c */
+u_int32_t checksum PROTO ((unsigned char *, int, u_int32_t));
+u_int32_t wrapsum PROTO ((u_int32_t));
+void assemble_hw_header PROTO ((struct interface_info *, unsigned char *,
+ int *, struct hardware *));
+void assemble_udp_ip_header PROTO ((struct interface_info *, unsigned char *,
+ int *, u_int32_t, u_int32_t, unsigned int,
+ unsigned char *, int));
+ssize_t decode_hw_header PROTO ((struct interface_info *, unsigned char *,
+ int, struct hardware *));
+ssize_t decode_udp_ip_header PROTO ((struct interface_info *, unsigned char *,
+ int, struct sockaddr_in *,
+ unsigned char *, int));
+
+/* dhxpxlt.c */
+void convert_statement PROTO ((FILE *));
+void convert_host_statement PROTO ((FILE *, jrefproto));
+void convert_host_name PROTO ((FILE *, jrefproto));
+void convert_class_statement PROTO ((FILE *, jrefproto, int));
+void convert_class_decl PROTO ((FILE *, jrefproto));
+void convert_lease_time PROTO ((FILE *, jrefproto, char *));
+void convert_shared_net_statement PROTO ((FILE *, jrefproto));
+void convert_subnet_statement PROTO ((FILE *, jrefproto));
+void convert_subnet_decl PROTO ((FILE *, jrefproto));
+void convert_host_decl PROTO ((FILE *, jrefproto));
+void convert_hardware_decl PROTO ((FILE *, jrefproto));
+void convert_hardware_addr PROTO ((FILE *, jrefproto));
+void convert_filename_decl PROTO ((FILE *, jrefproto));
+void convert_servername_decl PROTO ((FILE *, jrefproto));
+void convert_ip_addr_or_hostname PROTO ((FILE *, jrefproto, int));
+void convert_fixed_addr_decl PROTO ((FILE *, jrefproto));
+void convert_option_decl PROTO ((FILE *, jrefproto));
+void convert_timestamp PROTO ((FILE *, jrefproto));
+void convert_lease_statement PROTO ((FILE *, jrefproto));
+void convert_address_range PROTO ((FILE *, jrefproto));
+void convert_date PROTO ((FILE *, jrefproto, char *));
+void convert_numeric_aggregate PROTO ((FILE *, jrefproto, int, int, int, int));
+void indent PROTO ((int));
+
+/* route.c */
+void add_route_direct PROTO ((struct interface_info *, struct in_addr));
+void add_route_net PROTO ((struct interface_info *, struct in_addr,
+ struct in_addr));
+void add_route_default_gateway PROTO ((struct interface_info *,
+ struct in_addr));
+void remove_routes PROTO ((struct in_addr));
+void remove_if_route PROTO ((struct interface_info *, struct in_addr));
+void remove_all_if_routes PROTO ((struct interface_info *));
+void set_netmask PROTO ((struct interface_info *, struct in_addr));
+void set_broadcast_addr PROTO ((struct interface_info *, struct in_addr));
+void set_ip_address PROTO ((struct interface_info *, struct in_addr));
+
+/* clparse.c */
+int read_client_conf PROTO ((void));
+void read_client_leases PROTO ((void));
+void parse_client_statement PROTO ((FILE *, struct interface_info *,
+ struct client_config *));
+int parse_X PROTO ((FILE *, u_int8_t *, int));
+int parse_option_list PROTO ((FILE *, u_int8_t *));
+void parse_interface_declaration PROTO ((FILE *, struct client_config *));
+struct interface_info *interface_or_dummy PROTO ((char *));
+void make_client_state PROTO ((struct interface_info *));
+void make_client_config PROTO ((struct interface_info *,
+ struct client_config *));
+void parse_client_lease_statement PROTO ((FILE *, int));
+void parse_client_lease_declaration PROTO ((FILE *, struct client_lease *,
+ struct interface_info **));
+struct option *parse_option_decl PROTO ((FILE *, struct option_data *));
+void parse_string_list PROTO ((FILE *, struct string_list **, int));
+int parse_ip_addr PROTO ((FILE *, struct iaddr *));
+void parse_reject_statement PROTO ((FILE *, struct client_config *));
+
+/* dhcrelay.c */
+void relay PROTO ((struct interface_info *, struct dhcp_packet *, int,
+ unsigned int, struct iaddr, struct hardware *));
+
+/* icmp.c */
+void icmp_startup PROTO ((int, void (*) PROTO ((struct iaddr,
+ u_int8_t *, int))));
+int icmp_echorequest PROTO ((struct iaddr *));
+void icmp_echoreply PROTO ((struct protocol *));
+
+/* dns.c */
+void dns_startup PROTO ((void));
+int ns_inaddr_lookup PROTO ((u_int16_t, struct iaddr));
+void dns_packet PROTO ((struct protocol *));
+
+/* resolv.c */
+extern char path_resolv_conf [];
+struct name_server *name_servers;
+struct domain_search_list *domains;
+
+void read_resolv_conf PROTO ((TIME));
+struct sockaddr_in *pick_name_server PROTO ((void));
+
+/* inet_addr.c */
+#ifdef NEED_INET_ATON
+int inet_aton PROTO ((const char *, struct in_addr *));
+#endif
+
+/* sysconf.c */
+void sysconf_startup PROTO ((void (*) (struct sysconf_header *, void *)));
+void sysconf_restart PROTO ((void *));
+void sysconf_message PROTO ((struct protocol *proto));
diff --git a/contrib/isc-dhcp/includes/dhctoken.h b/contrib/isc-dhcp/includes/dhctoken.h
new file mode 100644
index 000000000000..88acd1622983
--- /dev/null
+++ b/contrib/isc-dhcp/includes/dhctoken.h
@@ -0,0 +1,131 @@
+/* dhctoken.h
+
+ Tokens for config file lexer and parser. */
+
+/*
+ * Copyright (c) 1995, 1996, 1997 The Internet Software Consortium.
+ * 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. Neither the name of The Internet Software Consortium 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 INTERNET SOFTWARE CONSORTIUM 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 INTERNET SOFTWARE CONSORTIUM 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.
+ *
+ * This software has been written for the Internet Software Consortium
+ * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
+ * Enterprises. To learn more about the Internet Software Consortium,
+ * see ``http://www.vix.com/isc''. To learn more about Vixie
+ * Enterprises, see ``http://www.vix.com''.
+ */
+
+#define SEMI ';'
+#define DOT '.'
+#define COLON ':'
+#define COMMA ','
+#define SLASH '/'
+#define LBRACE '{'
+#define RBRACE '}'
+
+#define FIRST_TOKEN HOST
+#define HOST 256
+#define HARDWARE 257
+#define FILENAME 258
+#define FIXED_ADDR 259
+#define OPTION 260
+#define ETHERNET 261
+#define STRING 262
+#define NUMBER 263
+#define NUMBER_OR_NAME 264
+#define NAME 265
+#define TIMESTAMP 266
+#define STARTS 267
+#define ENDS 268
+#define UID 269
+#define CLASS 270
+#define LEASE 271
+#define RANGE 272
+#define PACKET 273
+#define CIADDR 274
+#define YIADDR 275
+#define SIADDR 276
+#define GIADDR 277
+#define SUBNET 278
+#define NETMASK 279
+#define DEFAULT_LEASE_TIME 280
+#define MAX_LEASE_TIME 281
+#define VENDOR_CLASS 282
+#define USER_CLASS 283
+#define SHARED_NETWORK 284
+#define SERVER_NAME 285
+#define DYNAMIC_BOOTP 286
+#define SERVER_IDENTIFIER 287
+#define DYNAMIC_BOOTP_LEASE_CUTOFF 288
+#define DYNAMIC_BOOTP_LEASE_LENGTH 289
+#define BOOT_UNKNOWN_CLIENTS 290
+#define NEXT_SERVER 291
+#define TOKEN_RING 292
+#define GROUP 293
+#define ONE_LEASE_PER_CLIENT 294
+#define GET_LEASE_HOSTNAMES 295
+#define USE_HOST_DECL_NAMES 296
+#define SEND 297
+#define CLIENT_IDENTIFIER 298
+#define REQUEST 299
+#define REQUIRE 300
+#define TIMEOUT 301
+#define RETRY 302
+#define SELECT_TIMEOUT 303
+#define SCRIPT 304
+#define INTERFACE 305
+#define RENEW 306
+#define REBIND 307
+#define EXPIRE 308
+#define UNKNOWN_CLIENTS 309
+#define ALLOW 310
+#define BOOTP 311
+#define DENY 312
+#define BOOTING 313
+#define DEFAULT 314
+#define MEDIA 315
+#define MEDIUM 316
+#define ALIAS 317
+#define REBOOT 318
+#define ABANDONED 319
+#define BACKOFF_CUTOFF 320
+#define INITIAL_INTERVAL 321
+#define NAMESERVER 322
+#define DOMAIN 323
+#define SEARCH 324
+#define SUPERSEDE 325
+#define APPEND 326
+#define PREPEND 327
+#define HOSTNAME 328
+#define CLIENT_HOSTNAME 329
+#define REJECT 330
+
+#define is_identifier(x) ((x) >= FIRST_TOKEN && \
+ (x) != STRING && \
+ (x) != NUMBER && \
+ (x) != EOF)
diff --git a/contrib/isc-dhcp/includes/hash.h b/contrib/isc-dhcp/includes/hash.h
new file mode 100644
index 000000000000..1bebb3140f80
--- /dev/null
+++ b/contrib/isc-dhcp/includes/hash.h
@@ -0,0 +1,56 @@
+/* hash.h
+
+ Definitions for hashing... */
+
+/*
+ * Copyright (c) 1995, 1996 The Internet Software Consortium.
+ * 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. Neither the name of The Internet Software Consortium 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 INTERNET SOFTWARE CONSORTIUM 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 INTERNET SOFTWARE CONSORTIUM 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.
+ *
+ * This software has been written for the Internet Software Consortium
+ * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
+ * Enterprises. To learn more about the Internet Software Consortium,
+ * see ``http://www.vix.com/isc''. To learn more about Vixie
+ * Enterprises, see ``http://www.vix.com''.
+ */
+
+#define DEFAULT_HASH_SIZE 97
+
+struct hash_bucket {
+ struct hash_bucket *next;
+ unsigned char *name;
+ int len;
+ unsigned char *value;
+};
+
+struct hash_table {
+ int hash_count;
+ struct hash_bucket *buckets [DEFAULT_HASH_SIZE];
+};
+
diff --git a/contrib/isc-dhcp/includes/inet.h b/contrib/isc-dhcp/includes/inet.h
new file mode 100644
index 000000000000..1cedc2331a24
--- /dev/null
+++ b/contrib/isc-dhcp/includes/inet.h
@@ -0,0 +1,52 @@
+/* inet.h
+
+ Portable definitions for internet addresses */
+
+/*
+ * Copyright (c) 1996 The Internet Software Consortium. 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. Neither the name of The Internet Software Consortium 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 INTERNET SOFTWARE CONSORTIUM 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 INTERNET SOFTWARE CONSORTIUM 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.
+ *
+ * This software has been written for the Internet Software Consortium
+ * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
+ * Enterprises. To learn more about the Internet Software Consortium,
+ * see ``http://www.vix.com/isc''. To learn more about Vixie
+ * Enterprises, see ``http://www.vix.com''.
+ */
+
+/* An internet address of up to 128 bits. */
+
+struct iaddr {
+ int len;
+ unsigned char iabuf [16];
+};
+
+struct iaddrlist {
+ struct iaddrlist *next;
+ struct iaddr addr;
+};
diff --git a/contrib/isc-dhcp/includes/netinet/if_ether.h b/contrib/isc-dhcp/includes/netinet/if_ether.h
new file mode 100644
index 000000000000..cae53863c54c
--- /dev/null
+++ b/contrib/isc-dhcp/includes/netinet/if_ether.h
@@ -0,0 +1,74 @@
+/* $NetBSD: if_ether.h,v 1.20 1995/06/12 00:47:27 mycroft Exp $ */
+
+/*
+ * 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.
+ *
+ * @(#)if_ether.h 8.1 (Berkeley) 6/10/93
+ */
+
+/*
+ * Ethernet address - 6 octets
+ * this is only used by the ethers(3) functions.
+ */
+struct ether_addr {
+ u_int8_t ether_addr_octet[6];
+};
+
+/*
+ * Structure of a 10Mb/s Ethernet header.
+ */
+#define ETHER_ADDR_LEN 6
+
+struct ether_header {
+ u_int8_t ether_dhost[ETHER_ADDR_LEN];
+ u_int8_t ether_shost[ETHER_ADDR_LEN];
+ u_int16_t ether_type;
+};
+
+#define ETHERTYPE_PUP 0x0200 /* PUP protocol */
+#define ETHERTYPE_IP 0x0800 /* IP protocol */
+#define ETHERTYPE_ARP 0x0806 /* address resolution protocol */
+#define ETHERTYPE_REVARP 0x8035 /* reverse addr resolution protocol */
+
+/*
+ * 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 ETHER_IS_MULTICAST(addr) (*(addr) & 0x01) /* is address mcast/bcast? */
+
+#define ETHERMTU 1500
+#define ETHERMIN (60-14)
+
diff --git a/contrib/isc-dhcp/includes/netinet/ip.h b/contrib/isc-dhcp/includes/netinet/ip.h
new file mode 100644
index 000000000000..233abd6e69b5
--- /dev/null
+++ b/contrib/isc-dhcp/includes/netinet/ip.h
@@ -0,0 +1,171 @@
+/* $NetBSD: ip.h,v 1.9 1995/05/15 01:22:44 cgd Exp $ */
+
+/*
+ * 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
+ */
+
+/*
+ * Definitions for internet protocol version 4.
+ * Per RFC 791, September 1981.
+ */
+#define IPVERSION 4
+
+/*
+ * Structure of an internet header, naked of options.
+ *
+ * We declare ip_len and ip_off to be short, rather than u_short
+ * pragmatically since otherwise unsigned comparisons can result
+ * against negative integers quite easily, and fail in subtle ways.
+ */
+struct ip {
+#if BYTE_ORDER == LITTLE_ENDIAN
+ u_int8_t ip_hl:4, /* header length */
+ ip_v:4; /* version */
+#endif
+#if BYTE_ORDER == BIG_ENDIAN
+ u_int8_t ip_v:4, /* version */
+ ip_hl:4; /* header length */
+#endif
+ u_int8_t ip_tos; /* type of service */
+ int16_t ip_len; /* total length */
+ u_int16_t ip_id; /* identification */
+ int16_t ip_off; /* fragment offset field */
+#define IP_DF 0x4000 /* dont fragment flag */
+#define IP_MF 0x2000 /* more fragments flag */
+#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */
+ u_int8_t ip_ttl; /* time to live */
+ u_int8_t ip_p; /* protocol */
+ u_int16_t 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
+/* IPTOS_LOWCOST 0x02 XXX */
+
+/*
+ * 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 */
+
+/*
+ * Time stamp option structure.
+ */
+struct ip_timestamp {
+ u_int8_t ipt_code; /* IPOPT_TS */
+ u_int8_t ipt_len; /* size of structure (variable) */
+ u_int8_t ipt_ptr; /* index of current entry */
+#if BYTE_ORDER == LITTLE_ENDIAN
+ u_int8_t ipt_flg:4, /* flags, see below */
+ ipt_oflw:4; /* overflow counter */
+#endif
+#if BYTE_ORDER == BIG_ENDIAN
+ u_int8_t ipt_oflw:4, /* overflow counter */
+ ipt_flg:4; /* flags, see below */
+#endif
+ union ipt_timestamp {
+ u_int32_t ipt_time[1];
+ struct ipt_ta {
+ struct in_addr ipt_addr;
+ u_int32_t ipt_time;
+ } ipt_ta[1];
+ } ipt_timestamp;
+};
+
+/* 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/contrib/isc-dhcp/includes/netinet/ip_icmp.h b/contrib/isc-dhcp/includes/netinet/ip_icmp.h
new file mode 100644
index 000000000000..8fffb58b7362
--- /dev/null
+++ b/contrib/isc-dhcp/includes/netinet/ip_icmp.h
@@ -0,0 +1,182 @@
+/* $NetBSD: ip_icmp.h,v 1.11 1996/08/03 15:48:18 neil Exp $ */
+
+/*
+ * 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_icmp.h 8.1 (Berkeley) 6/10/93
+ */
+
+
+/*
+ * Interface Control Message Protocol Definitions.
+ * Per RFC 792, September 1981.
+ */
+
+/*
+ * Internal of an ICMP Router Advertisement
+ */
+struct icmp_ra_addr {
+ u_int32_t ira_addr;
+ u_int32_t ira_preference;
+};
+
+/*
+ * Structure of an icmp header.
+ */
+struct icmp {
+ u_int8_t icmp_type; /* type of message, see below */
+ u_int8_t icmp_code; /* type sub code */
+ u_int16_t icmp_cksum; /* ones complement cksum of struct */
+ union {
+ u_int8_t ih_pptr; /* ICMP_PARAMPROB */
+ struct in_addr ih_gwaddr; /* ICMP_REDIRECT */
+ struct ih_idseq {
+ int16_t icd_id;
+ int16_t icd_seq;
+ } ih_idseq;
+ int32_t ih_void;
+
+ /* ICMP_UNREACH_NEEDFRAG -- Path MTU Discovery (RFC1191) */
+ struct ih_pmtu {
+ int16_t ipm_void;
+ int16_t ipm_nextmtu;
+ } ih_pmtu;
+ struct ih_rtradv {
+ u_int8_t irt_num_addrs;
+ u_int8_t irt_wpa;
+ u_int16_t irt_lifetime;
+ } ih_rtradv;
+ } icmp_hun;
+#define icmp_pptr icmp_hun.ih_pptr
+#define icmp_gwaddr icmp_hun.ih_gwaddr
+#define icmp_id icmp_hun.ih_idseq.icd_id
+#define icmp_seq icmp_hun.ih_idseq.icd_seq
+#define icmp_void icmp_hun.ih_void
+#define icmp_pmvoid icmp_hun.ih_pmtu.ipm_void
+#define icmp_nextmtu icmp_hun.ih_pmtu.ipm_nextmtu
+#define icmp_num_addrs icmp_hun.ih_rtradv.irt_num_addrs
+#define icmp_wpa icmp_hun.ih_rtradv.irt_wpa
+#define icmp_lifetime icmp_hun.ih_rtradv.irt_lifetime
+ union {
+ struct id_ts {
+ u_int32_t its_otime;
+ u_int32_t its_rtime;
+ u_int32_t its_ttime;
+ } id_ts;
+ struct id_ip {
+ struct ip idi_ip;
+ /* options and then 64 bits of data */
+ } id_ip;
+ struct icmp_ra_addr id_radv;
+ u_int32_t id_mask;
+ int8_t id_data[1];
+ } icmp_dun;
+#define icmp_otime icmp_dun.id_ts.its_otime
+#define icmp_rtime icmp_dun.id_ts.its_rtime
+#define icmp_ttime icmp_dun.id_ts.its_ttime
+#define icmp_ip icmp_dun.id_ip.idi_ip
+#define icmp_radv icmp_dun.id_mask
+#define icmp_mask icmp_dun.id_mask
+#define icmp_data icmp_dun.id_data
+};
+
+/*
+ * Lower bounds on packet lengths for various types.
+ * For the error advice packets must first insure that the
+ * packet is large enought to contain the returned ip header.
+ * Only then can we do the check to see if 64 bits of packet
+ * data have been returned, since we need to check the returned
+ * ip header length.
+ */
+#define ICMP_MINLEN 8 /* abs minimum */
+#define ICMP_TSLEN (8 + 3 * sizeof (u_int32_t)) /* timestamp */
+#define ICMP_MASKLEN 12 /* address mask */
+#define ICMP_ADVLENMIN (8 + sizeof (struct ip) + 8) /* min */
+#define ICMP_ADVLEN(p) (8 + ((p)->icmp_ip.ip_hl << 2) + 8)
+ /* N.B.: must separately check that ip_hl >= 5 */
+
+/*
+ * Definition of type and code field values.
+ */
+#define ICMP_ECHOREPLY 0 /* echo reply */
+#define ICMP_UNREACH 3 /* dest unreachable, codes: */
+#define ICMP_UNREACH_NET 0 /* bad net */
+#define ICMP_UNREACH_HOST 1 /* bad host */
+#define ICMP_UNREACH_PROTOCOL 2 /* bad protocol */
+#define ICMP_UNREACH_PORT 3 /* bad port */
+#define ICMP_UNREACH_NEEDFRAG 4 /* IP_DF caused drop */
+#define ICMP_UNREACH_SRCFAIL 5 /* src route failed */
+#define ICMP_UNREACH_NET_UNKNOWN 6 /* unknown net */
+#define ICMP_UNREACH_HOST_UNKNOWN 7 /* unknown host */
+#define ICMP_UNREACH_ISOLATED 8 /* src host isolated */
+#define ICMP_UNREACH_NET_PROHIB 9 /* prohibited access */
+#define ICMP_UNREACH_HOST_PROHIB 10 /* ditto */
+#define ICMP_UNREACH_TOSNET 11 /* bad tos for net */
+#define ICMP_UNREACH_TOSHOST 12 /* bad tos for host */
+#define ICMP_SOURCEQUENCH 4 /* packet lost, slow down */
+#define ICMP_REDIRECT 5 /* shorter route, codes: */
+#define ICMP_REDIRECT_NET 0 /* for network */
+#define ICMP_REDIRECT_HOST 1 /* for host */
+#define ICMP_REDIRECT_TOSNET 2 /* for tos and net */
+#define ICMP_REDIRECT_TOSHOST 3 /* for tos and host */
+#define ICMP_ECHO 8 /* echo service */
+#define ICMP_ROUTERADVERT 9 /* router advertisement */
+#define ICMP_ROUTERSOLICIT 10 /* router solicitation */
+#define ICMP_TIMXCEED 11 /* time exceeded, code: */
+#define ICMP_TIMXCEED_INTRANS 0 /* ttl==0 in transit */
+#define ICMP_TIMXCEED_REASS 1 /* ttl==0 in reass */
+#define ICMP_PARAMPROB 12 /* ip header bad */
+#define ICMP_PARAMPROB_OPTABSENT 1 /* req. opt. absent */
+#define ICMP_TSTAMP 13 /* timestamp request */
+#define ICMP_TSTAMPREPLY 14 /* timestamp reply */
+#define ICMP_IREQ 15 /* information request */
+#define ICMP_IREQREPLY 16 /* information reply */
+#define ICMP_MASKREQ 17 /* address mask request */
+#define ICMP_MASKREPLY 18 /* address mask reply */
+
+#define ICMP_MAXTYPE 18
+
+#define ICMP_INFOTYPE(type) \
+ ((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \
+ (type) == ICMP_ROUTERADVERT || (type) == ICMP_ROUTERSOLICIT || \
+ (type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \
+ (type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \
+ (type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY)
+
+#ifdef _KERNEL
+void icmp_error __P((struct mbuf *, int, int, n_long, struct ifnet *));
+void icmp_input __P((struct mbuf *, ...));
+void icmp_reflect __P((struct mbuf *));
+void icmp_send __P((struct mbuf *, struct mbuf *));
+int icmp_sysctl __P((int *, u_int, void *, size_t *, void *, size_t));
+#endif
+
diff --git a/contrib/isc-dhcp/includes/netinet/udp.h b/contrib/isc-dhcp/includes/netinet/udp.h
new file mode 100644
index 000000000000..c7964dfd30fc
--- /dev/null
+++ b/contrib/isc-dhcp/includes/netinet/udp.h
@@ -0,0 +1,47 @@
+/* $NetBSD: udp.h,v 1.6 1995/04/13 06:37:10 cgd Exp $ */
+
+/*
+ * 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.
+ *
+ * @(#)udp.h 8.1 (Berkeley) 6/10/93
+ */
+
+/*
+ * Udp protocol header.
+ * Per RFC 768, September, 1981.
+ */
+struct udphdr {
+ u_int16_t uh_sport; /* source port */
+ u_int16_t uh_dport; /* destination port */
+ int16_t uh_ulen; /* udp length */
+ u_int16_t uh_sum; /* udp checksum */
+};
diff --git a/contrib/isc-dhcp/includes/osdep.h b/contrib/isc-dhcp/includes/osdep.h
new file mode 100644
index 000000000000..4ea4cd863d75
--- /dev/null
+++ b/contrib/isc-dhcp/includes/osdep.h
@@ -0,0 +1,220 @@
+/* osdep.h
+
+ Operating system dependencies... */
+
+/*
+ * Copyright (c) 1996, 1997, 1998 The Internet Software Consortium.
+ * 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. Neither the name of The Internet Software Consortium 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 INTERNET SOFTWARE CONSORTIUM 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 INTERNET SOFTWARE CONSORTIUM 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.
+ *
+ * This software was written for the Internet Software Consortium by Ted Lemon
+ * under a contract with Vixie Laboratories.
+ */
+
+#include "site.h"
+
+/* Porting::
+
+ If you add a new network API, you must add a check for it below: */
+
+#if !defined (USE_SOCKETS) && \
+ !defined (USE_SOCKET_SEND) && \
+ !defined (USE_SOCKET_RECEIVE) && \
+ !defined (USE_RAW_SOCKETS) && \
+ !defined (USE_RAW_SEND) && \
+ !defined (USE_SOCKET_RECEIVE) && \
+ !defined (USE_BPF) && \
+ !defined (USE_BPF_SEND) && \
+ !defined (USE_BPF_RECEIVE) && \
+ !defined (USE_NIT) && \
+ !defined (USE_NIT_SEND) && \
+ !defined (USE_NIT_RECEIVE) && \
+ !defined (USR_DLPI_SEND) && \
+ !defined (USE_DLPI_RECEIVE)
+# define USE_DEFAULT_NETWORK
+#endif
+
+
+/* Porting::
+
+ If you add a new system configuration file, include it here: */
+
+#if defined (sun)
+# if defined (__svr4__) || defined (__SVR4)
+# include "cf/sunos5-5.h"
+# else
+# include "cf/sunos4.h"
+# endif
+#endif
+
+#ifdef bsdi
+# include "cf/bsdos.h"
+#endif
+
+#ifdef __NetBSD__
+# include "cf/netbsd.h"
+#endif
+
+#ifdef __FreeBSD__
+# include "cf/freebsd.h"
+#endif
+
+#if defined (__osf__) && defined (__alpha)
+# include "cf/alphaosf.h"
+#endif
+
+#ifdef ultrix
+# include "cf/ultrix.h"
+#endif
+
+#ifdef linux
+# include "cf/linux.h"
+#endif
+
+#ifdef SCO
+# include "cf/sco.h"
+#endif
+
+#ifdef hpux
+# include "cf/hpux.h"
+#endif
+
+#ifdef __QNX__
+# include "cf/qnx.h"
+#endif
+
+#ifdef __CYGWIN32__
+# include "cf/cygwin32.h"
+#endif
+
+#ifdef NeXT
+# ifdef __APPLE__
+# include "cf/rhapsody.h"
+# else
+# include "cf/nextstep.h"
+# endif
+#endif
+
+/* Porting::
+
+ If you add a new network API, and have it set up so that it can be
+ used for sending or receiving, but doesn't have to be used for both,
+ then set up an ifdef like the ones below: */
+
+#ifdef USE_SOCKETS
+# define USE_SOCKET_SEND
+# define USE_SOCKET_RECEIVE
+#endif
+
+#ifdef USE_RAW_SOCKETS
+# define USE_RAW_SEND
+# define USE_SOCKET_RECEIVE
+#endif
+
+#ifdef USE_BPF
+# define USE_BPF_SEND
+# define USE_BPF_RECEIVE
+#endif
+
+#ifdef USE_NIT
+# define USE_NIT_SEND
+# define USE_NIT_RECEIVE
+#endif
+
+#ifdef USE_DLPI
+# define USE_DLPI_SEND
+# define USE_DLPI_RECEIVE
+#endif
+
+#ifdef USE_UPF
+# define USE_UPF_SEND
+# define USE_UPF_RECEIVE
+#endif
+
+/* Porting::
+
+ If you add support for sending packets directly out an interface,
+ and your support does not do ARP or routing, you must use a fallback
+ mechanism to deal with packets that need to be sent to routers.
+ Currently, all low-level packet interfaces use BSD sockets as a
+ fallback. */
+
+#if defined (USE_BPF_SEND) || defined (USE_NIT_SEND) || \
+ defined (USE_DLPI_SEND) || defined (USE_UPF_SEND)
+# define USE_SOCKET_FALLBACK
+# define USE_FALLBACK
+#endif
+
+/* Porting::
+
+ If you add support for sending packets directly out an interface
+ and need to be able to assemble packets, add the USE_XXX_SEND
+ definition for your interface to the list tested below. */
+
+#if defined (USE_RAW_SEND) || defined (USE_BPF_SEND) || \
+ defined (USE_NIT_SEND) || defined (USE_UPF_SEND) || \
+ defined (USE_DLPI_SEND)
+# define PACKET_ASSEMBLY
+#endif
+
+/* Porting::
+
+ If you add support for receiving packets directly from an interface
+ and need to be able to decode raw packets, add the USE_XXX_RECEIVE
+ definition for your interface to the list tested below. */
+
+#if defined (USE_RAW_RECEIVE) || defined (USE_BPF_SEND) || \
+ defined (USE_NIT_RECEIVE) || defined (USE_UPF_RECEIVE) || \
+ defined (USE_DLPI_RECEIVE)
+# define PACKET_DECODING
+#endif
+
+/* If we don't have a DLPI packet filter, we have to filter in userland.
+ Probably not worth doing, actually. */
+#if defined (USE_DLPI_RECEIVE) && !defined (USE_DLPI_PFMOD)
+# define USERLAND_FILTER
+#endif
+
+/* jmp_buf is assumed to be a struct unless otherwise defined in the
+ system header. */
+#ifndef jbp_decl
+# define jbp_decl(x) jmp_buf *x
+#endif
+#ifndef jref
+# define jref(x) (&(x))
+#endif
+#ifndef jdref
+# define jdref(x) (*(x))
+#endif
+#ifndef jrefproto
+# define jrefproto jmp_buf *
+#endif
+
+#ifndef BPF_FORMAT
+# define BPF_FORMAT "/dev/bpf%d"
+#endif
diff --git a/contrib/isc-dhcp/includes/site.h b/contrib/isc-dhcp/includes/site.h
new file mode 100644
index 000000000000..30fdb7030050
--- /dev/null
+++ b/contrib/isc-dhcp/includes/site.h
@@ -0,0 +1,100 @@
+/* Site-specific definitions.
+
+ For supported systems, you shouldn't need to make any changes here.
+ However, you may want to, in order to deal with site-specific
+ differences. */
+
+/* Add any site-specific definitions and inclusions here... */
+
+/* #include <site-foo-bar.h> */
+/* #define SITE_FOOBAR */
+
+/* Define this if you don't want dhcpd to run as a daemon and do want
+ to see all its output printed to stdout instead of being logged via
+ syslog(). This also makes dhcpd use the dhcpd.conf in its working
+ directory and write the dhcpd.leases file there. */
+
+/* #define DEBUG */
+
+/* Define this to see what the parser is parsing. You probably don't
+ want to see this. */
+
+/* #define DEBUG_TOKENS */
+
+/* Define this to see dumps of incoming and outgoing packets. This
+ slows things down quite a bit... */
+
+/* #define DEBUG_PACKET */
+
+/* Define this if you want to see dumps of tree evaluations. The most
+ common reason for doing this is to watch what happens with DNS name
+ lookups. */
+
+/* #define DEBUG_EVAL */
+
+/* Define this if you want the dhcpd.pid file to go somewhere other than
+ the default (which varies from system to system, but is usually either
+ /etc or /var/run. */
+
+/* #define _PATH_DHCPD_PID "/var/run/dhcpd.pid" */
+
+/* Define this if you want the dhcpd.leases file (the dynamic lease database)
+ to go somewhere other than the default location, which is normally
+ /etc/dhcpd.leases. */
+
+/* #define _PATH_DHCPD_DB "/etc/dhcpd.leases" */
+
+/* Define this if you want the dhcpd.conf file to go somewhere other than
+ the default location. By default, it goes in /etc/dhcpd.conf. */
+
+/* #define _PATH_DHCPD_CONF "/etc/dhcpd.conf" */
+
+/* Network API definitions. You do not need to choose one of these - if
+ you don't choose, one will be chosen for you in your system's config
+ header. DON'T MESS WITH THIS UNLESS YOU KNOW WHAT YOU'RE DOING!!! */
+
+/* Define this to use the standard BSD socket API.
+
+ On many systems, the BSD socket API does not provide the ability to
+ send packets to the 255.255.255.255 broadcast address, which can
+ prevent some clients (e.g., Win95) from seeing replies. This is
+ not a problem on Solaris.
+
+ In addition, the BSD socket API will not work when more than one
+ network interface is configured on the server.
+
+ However, the BSD socket API is about as efficient as you can get, so if
+ the aforementioned problems do not matter to you, or if no other
+ API is supported for your system, you may want to go with it. */
+
+/* #define USE_SOCKETS */
+
+/* Define this to use the Sun Streams NIT API.
+
+ The Sun Streams NIT API is only supported on SunOS 4.x releases. */
+
+/* #define USE_NIT */
+
+/* Define this to use the Berkeley Packet Filter API.
+
+ The BPF API is available on all 4.4-BSD derivatives, including
+ NetBSD, FreeBSD and BSDI's BSD/OS. It's also available on
+ DEC Alpha OSF/1 in a compatibility mode supported by the Alpha OSF/1
+ packetfilter interface. */
+
+/* #define USE_BPF */
+
+/* Define this to use the raw socket API.
+
+ The raw socket API is provided on many BSD derivatives, and provides
+ a way to send out raw IP packets. It is only supported for sending
+ packets - packets must be received with the regular socket API.
+ This code is experimental - I've never gotten it to actually transmit
+ a packet to the 255.255.255.255 broadcast address - so use it at your
+ own risk. */
+
+/* #define USE_RAW_SOCKETS */
+
+/* Define this to change the logging facility used by dhcpd. */
+
+/* #define DHCPD_LOG_FACILITY LOG_DAEMON */
diff --git a/contrib/isc-dhcp/includes/sysconf.h b/contrib/isc-dhcp/includes/sysconf.h
new file mode 100644
index 000000000000..5feb4c75c706
--- /dev/null
+++ b/contrib/isc-dhcp/includes/sysconf.h
@@ -0,0 +1,52 @@
+/* systat.h
+
+ Definitions for systat protocol... */
+
+/*
+ * Copyright (c) 1997 The Internet Software Consortium.
+ * 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. Neither the name of The Internet Software Consortium 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 INTERNET SOFTWARE CONSORTIUM 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 INTERNET SOFTWARE CONSORTIUM 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.
+ *
+ * This software has been written for the Internet Software Consortium
+ * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
+ * Enterprises. To learn more about the Internet Software Consortium,
+ * see ``http://www.vix.com/isc''. To learn more about Vixie
+ * Enterprises, see ``http://www.vix.com''.
+ */
+
+#define SYSCONF_SOCKET "/var/run/sysconf"
+
+struct sysconf_header {
+ u_int32_t type; /* Type of status message... */
+ u_int32_t length; /* Length of message. */
+};
+
+/* Message types... */
+#define NETWORK_LOCATION_CHANGED 1
+
diff --git a/contrib/isc-dhcp/includes/tree.h b/contrib/isc-dhcp/includes/tree.h
new file mode 100644
index 000000000000..c2df41f52b11
--- /dev/null
+++ b/contrib/isc-dhcp/includes/tree.h
@@ -0,0 +1,107 @@
+/* tree.h
+
+ Definitions for address trees... */
+
+/*
+ * Copyright (c) 1995 The Internet Software Consortium. 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. Neither the name of The Internet Software Consortium 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 INTERNET SOFTWARE CONSORTIUM 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 INTERNET SOFTWARE CONSORTIUM 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.
+ *
+ * This software has been written for the Internet Software Consortium
+ * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
+ * Enterprises. To learn more about the Internet Software Consortium,
+ * see ``http://www.vix.com/isc''. To learn more about Vixie
+ * Enterprises, see ``http://www.vix.com''.
+ */
+
+/* A pair of pointers, suitable for making a linked list. */
+typedef struct _pair {
+ caddr_t car;
+ struct _pair *cdr;
+} *pair;
+
+/* Tree node types... */
+#define TREE_CONCAT 1
+#define TREE_HOST_LOOKUP 2
+#define TREE_CONST 3
+#define TREE_LIMIT 4
+
+/* Tree structure for deferred evaluation of changing values. */
+struct tree {
+ int op;
+ union {
+ struct concat {
+ struct tree *left;
+ struct tree *right;
+ } concat;
+ struct host_lookup {
+ struct dns_host_entry *host;
+ } host_lookup;
+ struct const_val {
+ unsigned char *data;
+ int len;
+ } const_val;
+ struct limit {
+ struct tree *tree;
+ int limit;
+ } limit;
+ } data;
+};
+
+/* DNS host entry structure... */
+struct dns_host_entry {
+ char *hostname;
+ unsigned char *data;
+ int data_len;
+ int buf_len;
+ TIME timeout;
+};
+
+struct tree_cache {
+ unsigned char *value;
+ int len;
+ int buf_size;
+ TIME timeout;
+ struct tree *tree;
+ int flags;
+#define TC_AWAITING_RESOLUTION 1
+#define TC_TEMPORARY 2
+};
+
+struct universe {
+ char *name;
+ struct hash_table *hash;
+ struct option *options [256];
+};
+
+struct option {
+ char *name;
+ char *format;
+ struct universe *universe;
+ unsigned char code;
+};