+++ /dev/null
-/* dns.c
-
- Domain Name Service subroutines. */
-
-/*
- * Copyright (C) 1992 by Ted Lemon.
- * 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 file is based on software written in 1992 by Ted Lemon for
- * a portable network boot loader. That original code base has been
- * substantially modified for use in the Internet Software Consortium
- * DHCP suite.
- *
- * These later modifications were done on behalf of 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 lint
-static char copyright[] =
-"$Id: dns.c,v 1.5 1997/11/29 07:51:49 mellon Exp $ Copyright (c) 1997 The Internet Software Consortium. All rights reserved.\n";
-#endif /* not lint */
-
-#include "dhcpd.h"
-#include "arpa/nameser.h"
-
-int dns_protocol_initialized;
-int dns_protocol_fd;
-
-static int addlabel PROTO ((u_int8_t *, char *));
-static int skipname PROTO ((u_int8_t *));
-static int copy_out_name PROTO ((u_int8_t *, u_int8_t *, char *));
-static int nslookup PROTO ((u_int8_t, char *, int, u_int16_t, u_int16_t));
-static int zonelookup PROTO ((u_int8_t, char *, int, u_int16_t));
-u_int16_t dns_port;
-
-/* Initialize the DNS protocol. */
-
-void dns_startup ()
-{
- struct servent *srv;
- struct sockaddr_in from;
-
- /* Only initialize icmp once. */
- if (dns_protocol_initialized)
- error ("attempted to reinitialize dns protocol");
- dns_protocol_initialized = 1;
-
- /* Get the protocol number (should be 1). */
- srv = getservbyname ("domain", "tcp");
- if (srv)
- dns_port = srv -> s_port;
- else
- dns_port = htons (53);
-
- /* Get a socket for the DNS protocol. */
- dns_protocol_fd = socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP);
- if (dns_protocol_fd < 0)
- error ("unable to create dns socket: %m");
-
- pick_name_server ();
-
- add_protocol ("dns", dns_protocol_fd, dns_packet, 0);
-}
-
-/* Label manipulation stuff; see RFC1035, page 28 section 4.1.2 and
- page 30, section 4.1.4. */
-
-/* addlabel copies a label into the specified buffer, putting the length of
- the label in the first character, the contents of the label in subsequent
- characters, and returning the length of the conglomeration. */
-
-static int addlabel (buf, label)
- u_int8_t *buf;
- char *label;
-{
- *buf = strlen (label);
- memcpy (buf + 1, label, *buf);
- return *buf + 1;
-}
-
-/* skipname skips over all of the labels in a single domain name,
- returning the length of the domain name. */
-
-static int skipname (label)
- u_int8_t *label;
-{
- if (*label & INDIR_MASK)
- return 2;
- if (*label == 0)
- return 1;
- return *label + 1 + skipname (label + *label + 1);
-}
-
-/* copy_out_name copies out the name appearing at the specified location
- into a string, stored as fields seperated by dots rather than lengths
- and labels. The length of the label-formatted name is returned. */
-
-static int copy_out_name (base, name, buf)
- u_int8_t *base;
- u_int8_t *name;
- char *buf;
-{
- if (*name & INDIR_MASK) {
- int offset = (*name & ~INDIR_MASK) + (*name + 1);
- return copy_out_name (base, base + offset, buf);
- }
- if (!*name) {
- *buf = 0;
- return 1;
- }
- memcpy (buf, name + 1, *name);
- *(buf + *name) = '.';
- return (*name + 1
- + copy_out_name (base, name + *name + 1, buf + *name + 1));
-}
-
-/* ns_inaddr_lookup constructs a PTR lookup query for an internet address -
- e.g., 1.200.9.192.in-addr.arpa. If the specified timeout period passes
- before the query is satisfied, or if the query fails, the callback is
- called with a null pointer. Otherwise, the callback is called with the
- address of the string returned by the name server. */
-
-int ns_inaddr_lookup (id, inaddr)
- u_int16_t id;
- struct iaddr inaddr;
-{
- unsigned char namebuf [512];
- unsigned char *s = namebuf;
- unsigned char *label;
- int i;
- unsigned char c;
-
- for (i = 3; i >= 0; --i) {
- label = s++;
- *label = 1;
- c = inaddr.iabuf [i];
- if (c > 100) {
- ++*label;
- *s++ = '0' + c / 100;
- }
- if (c > 10) {
- ++*label;
- *s++ = '0' + ((c / 10) % 10);
- }
- *s++ = '0' + (c % 10);
- }
- s += addlabel (s, "in-addr");
- s += addlabel (s, "arpa");
- *s++ = 0;
-/* return nslookup (id, namebuf, s - namebuf, T_PTR, C_IN); */
- return zonelookup (id, namebuf, s - namebuf, C_IN);
-}
-
-/* Construct and transmit a name server query. */
-
-static int nslookup (id, qname, namelen, qtype, qclass)
- u_int8_t id;
- char *qname;
- int namelen;
- u_int16_t qtype;
- u_int16_t qclass;
-{
- HEADER *hdr;
- unsigned char query [512];
- u_int8_t *s;
- int len;
- int i, status;
- struct sockaddr_in *server = pick_name_server ();
-
- if (!server)
- return 0;
-
- /* Construct a header... */
- hdr = (HEADER *)query;
- memset (hdr, 0, sizeof *hdr);
- hdr -> id = htons (id);
- hdr -> rd = 1;
- hdr -> opcode = QUERY;
- hdr -> qdcount = htons (1);
-
- /* Copy in the name we're looking up. */
- s = (u_int8_t *)(hdr + 1);
- memcpy (s, qname, namelen);
- s += namelen;
-
- /* Set the query type. */
- putUShort (s, qtype);
- s += sizeof (u_int16_t);
-
- /* Set the query class. */
- putUShort (s, qclass);
- s += sizeof (u_int16_t);
-
- /* Send the query. */
- status = sendto (dns_protocol_fd, query, s - query, 0,
- (struct sockaddr *)server, sizeof *server);
-
- /* If the send failed, report the failure. */
- if (status < 0)
- return 0;
- return 1;
-}
-
-/* Construct a query for the SOA for a specified name.
- Try every possible SOA name starting from the name specified and going
- to the root name - e.g., for
-
- 215.5.5.192.in-addr.arpa, look for SOAs matching:
-
- 215.5.5.5.192.in-addr.arpa
- 5.5.192.in-addr.arpa
- 5.192.in-addr.arpa
- 192.in-addr.arpa
- in-addr.arpa
- arpa */
-
-static int zonelookup (id, qname, namelen, qclass)
- u_int8_t id;
- char *qname;
- int namelen;
- u_int16_t qclass;
-{
- HEADER *hdr;
- unsigned char query [512];
- u_int8_t *s, *nptr;
- int len;
- int i, status, count;
- struct sockaddr_in *server = pick_name_server ();
-
- if (!server)
- return 0;
-
- /* Construct a header... */
- hdr = (HEADER *)query;
- memset (hdr, 0, sizeof *hdr);
- hdr -> id = htons (id);
- hdr -> rd = 1;
- hdr -> opcode = QUERY;
-
- /* Copy in the name we're looking up. */
- s = (u_int8_t *)(hdr + 1);
- memcpy (s, qname, namelen);
- s += namelen;
-
- /* Set the query type. */
- putUShort (s, T_SOA);
- s += sizeof (u_int16_t);
-
- /* Set the query class. */
- putUShort (s, qclass);
- s += sizeof (u_int16_t);
- count = 1;
-
- /* Now query up the hierarchy. */
- nptr = (u_int8_t *)(hdr + 1);
- while (*(nptr += *nptr + 1)) {
- /* Store a compressed reference from the full name. */
- putUShort (s, ntohs (htons (0xC000) |
- htons (nptr - &query [0])));
- s += sizeof (u_int16_t);
-
- /* Store the query type. */
- putUShort (s, T_SOA);
- s += sizeof (u_int16_t);
-
- putUShort (s, qclass);
- s += sizeof (u_int16_t);
-
- /* Increment the query count... */
- ++count;
-break;
- }
- hdr -> qdcount = htons (count);
-
-dump_raw (query, s - query);
- /* Send the query. */
- status = sendto (dns_protocol_fd, query, s - query, 0,
- (struct sockaddr *)server, sizeof *server);
-
- /* If the send failed, report the failure. */
- if (status < 0)
- return 0;
- return 1;
-}
-
-/* Process a reply from a name server. */
-
-void dns_packet (protocol)
- struct protocol *protocol;
-{
- HEADER *ns_header;
- struct sockaddr_in from;
- int fl;
- unsigned char buf [4096];
- unsigned char nbuf [512];
- unsigned char *base;
- unsigned char *dptr;
- u_int16_t type;
- u_int16_t class;
- TIME ttl;
- u_int16_t rdlength;
- int len, status;
- int i;
-
- len = sizeof from;
- status = recvfrom (protocol -> fd, buf, sizeof buf, 0,
- (struct sockaddr *)&from, &len);
- if (status < 0) {
- warn ("icmp_echoreply: %m");
- return;
- }
-
- ns_header = (HEADER *)buf;
- base = (unsigned char *)(ns_header + 1);
-
-#if 0
- /* Ignore invalid packets... */
- if (ntohs (ns_header -> id) > ns_query_max) {
- printf ("Out-of-range NS message; id = %d\n",
- ntohs (ns_header -> id));
- return;
- }
-#endif
-
- /* Parse the response... */
- dptr = base;
-
- /* Skip over the queries... */
- for (i = 0; i < ntohs (ns_header -> qdcount); i++) {
- dptr += skipname (dptr);
- /* Skip over the query type and query class. */
- dptr += 2 * sizeof (u_int16_t);
- }
-
- /* Process the answers... */
- for (i = 0; i < ntohs (ns_header -> ancount); i++) {
- /* Skip over the name we looked up. */
- dptr += skipname (dptr);
-
- /* Get the type. */
- type = getUShort (dptr);
- dptr += sizeof type;
-
- /* Get the class. */
- class = getUShort (dptr);
- dptr += sizeof class;
-
- /* Get the time-to-live. */
- ttl = getULong (dptr);
- dptr += sizeof ttl;
-
- /* Get the length of the reply. */
- rdlength = getUShort (dptr);
- dptr += sizeof rdlength;
-
- switch (type) {
- case T_A:
- note ("A record; value is %d.%d.%d.%d",
- dptr [0], dptr [1], dptr [2], dptr [3]);
- break;
-
- case T_CNAME:
- case T_PTR:
- copy_out_name (base, dptr, nbuf);
- note ("Domain name; value is %s\n", nbuf);
- return;
-
- default:
- note ("unhandled type: %x", type);
- }
- }
-}
+++ /dev/null
-/* resolv.c
-
- Parser for /etc/resolv.conf file. */
-
-/*
- * 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''.
- */
-
-#ifndef lint
-static char copyright[] =
-"$Id: resolv.c,v 1.5 1997/12/06 04:04:07 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n";
-#endif /* not lint */
-
-#include "dhcpd.h"
-#include "dhctoken.h"
-
-struct name_server *name_servers;
-struct domain_search_list *domains;
-char path_resolv_conf [] = _PATH_RESOLV_CONF;
-
-void read_resolv_conf (parse_time)
- TIME parse_time;
-{
- FILE *cfile;
- char *val;
- int token;
- int declaration = 0;
- struct name_server *sp, *sl, *ns;
- struct domain_search_list *dp, *dl, *nd;
- struct iaddr *iaddr;
-
- new_parse (path_resolv_conf);
-
- eol_token = 1;
- if ((cfile = fopen (path_resolv_conf, "r")) == NULL) {
- warn ("Can't open %s: %m", path_resolv_conf);
- return;
- }
-
- do {
- token = next_token (&val, cfile);
- if (token == EOF)
- break;
- else if (token == EOL)
- continue;
- else if (token == DOMAIN || token == SEARCH) {
- do {
- struct domain_search_list *nd, **dp;
- char *dn;
-
- dn = parse_host_name (cfile);
- if (!dn)
- break;
-
- dp = &domains;
- for (nd = domains; nd; nd = nd -> next) {
- dp = &nd -> next;
- if (!strcmp (nd -> domain, dn))
- break;
- }
- if (!nd) {
- nd = new_domain_search_list
- ("read_resolv_conf");
- if (!nd)
- error ("No memory for %s", dn);
- nd -> next =
- (struct domain_search_list *)0;
- *dp = nd;
- nd -> domain = dn;
- dn = (char *)0;
- }
- nd -> rcdate = parse_time;
- token = peek_token (&val, cfile);
- } while (token != EOL);
- if (token != EOL) {
- parse_warn ("junk after domain declaration");
- skip_to_semi (cfile);
- }
- token = next_token (&val, cfile);
- } else if (token == NAMESERVER) {
- struct name_server *ns, **sp;
- struct iaddr iaddr;
-
- parse_ip_addr (cfile, &iaddr);
-
- sp = &name_servers;
- for (ns = name_servers; ns; ns = ns -> next) {
- sp = &ns -> next;
- if (!memcmp (&ns -> addr.sin_addr,
- iaddr.iabuf, iaddr.len))
- break;
- }
- if (!ns) {
- ns = new_name_server ("read_resolv_conf");
- if (!ns)
- error ("No memory for nameserver %s",
- piaddr (iaddr));
- ns -> next = (struct name_server *)0;
- *sp = ns;
- memcpy (&ns -> addr.sin_addr,
- iaddr.iabuf, iaddr.len);
-#ifdef HAVE_SA_LEN
- ns -> addr.sin_len = sizeof ns -> addr;
-#endif
- ns -> addr.sin_family = AF_INET;
- ns -> addr.sin_port = htons (53);
- memset (ns -> addr.sin_zero, 0,
- sizeof ns -> addr.sin_zero);
- }
- ns -> rcdate = parse_time;
- skip_to_semi (cfile);
- } else
- skip_to_semi (cfile); /* Ignore what we don't grok. */
- } while (1);
- token = next_token (&val, cfile); /* Clear the peek buffer */
-
- /* Lose servers that are no longer in /etc/resolv.conf. */
- sl = (struct name_server *)0;
- for (sp = name_servers; sp; sp = ns) {
- ns = sp -> next;
- if (sp -> rcdate != parse_time) {
- if (sl)
- sl -> next = sp -> next;
- else
- name_servers = sp -> next;
- free_name_server (sp, "pick_name_server");
- } else
- sl = sp;
- }
-
- /* Lose domains that are no longer in /etc/resolv.conf. */
- dl = (struct domain_search_list *)0;
- for (dp = domains; dp; dp = nd) {
- nd = dp -> next;
- if (dp -> rcdate != parse_time) {
- if (dl)
- dl -> next = dp -> next;
- else
- domains = dp -> next;
- free_domain_search_list (dp, "pick_name_server");
- } else
- dl = dp;
- }
- eol_token = 0;
-}
-
-/* Pick a name server from the /etc/resolv.conf file. */
-
-struct sockaddr_in *pick_name_server ()
-{
- FILE *rc;
- static TIME rcdate;
- struct stat st;
-
- /* Check /etc/resolv.conf and reload it if it's changed. */
- if (cur_time > rcdate) {
- if (stat (path_resolv_conf, &st) < 0) {
- warn ("Can't stat %s", path_resolv_conf);
- return (struct sockaddr_in *)0;
- }
- if (st.st_mtime > rcdate) {
- char rcbuf [512];
- char *s, *t, *u;
- rcdate = cur_time + 1;
-
- read_resolv_conf (rcdate);
- }
- }
-
- if (name_servers)
- return &name_servers -> addr;
- return (struct sockaddr_in *)0;
-}
+++ /dev/null
-/* sysconf.c
-
- System status watcher...
-
- !!!Boy, howdy, is this ever not guaranteed not to change!!! */
-
-/*
- * 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''.
- */
-
-#ifndef lint
-static char copyright[] =
-"$Id: sysconf.c,v 1.3 1997/11/29 07:52:33 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n";
-#endif /* not lint */
-
-#include "dhcpd.h"
-
-int sysconf_initialized;
-int sysconf_fd;
-
-void sysconf_startup (handler)
- void (*handler) PROTO ((struct sysconf_header *, void *));
-{
- struct sockaddr_un name;
- static int once;
- int len;
-
- /* Only initialize sysconf once. */
- if (sysconf_initialized)
- error ("attempted to reinitialize sysconf protocol");
- sysconf_initialized = 1;
-
- sysconf_fd = socket (AF_UNIX, SOCK_STREAM, 0);
- if (sysconf_fd < 0)
- error ("unable to create sysconf socket: %m");
-
- /* XXX for now... */
- name.sun_family = PF_UNIX;
- strcpy (name.sun_path, "/var/run/sysconf");
-#if defined (HAVE_SA_LEN)
- name.sun_len =
-#endif
- len = ((sizeof name) - (sizeof name.sun_path) +
- strlen (name.sun_path));
-
- if (connect (sysconf_fd, (struct sockaddr *)&name, len) < 0) {
- if (!once)
- warn ("can't connect to sysconf socket: %m");
- once = 1;
- close (sysconf_fd);
- sysconf_initialized = 0;
- add_timeout (cur_time + 60, sysconf_restart, handler);
- } else
- add_protocol ("sysconf", sysconf_fd, sysconf_message, handler);
-}
-
-void sysconf_restart (v)
- void *v;
-{
- void (*handler) PROTO ((struct sysconf_header *, void *)) = v;
-
- sysconf_startup (handler);
-}
-
-void sysconf_message (proto)
- struct protocol *proto;
-{
- struct sysconf_header hdr;
- int status;
- char *buf;
- void (*handler) PROTO ((struct sysconf_header *, void *));
-
- status = read (sysconf_fd, &hdr, sizeof hdr);
- if (status < 0) {
- warn ("sysconf_message: %m");
- lose:
- add_timeout (cur_time + 60, sysconf_restart, proto -> local);
- remove_protocol (proto);
- return;
- }
- if (status < sizeof (hdr)) {
- warn ("sysconf_message: short message");
- goto lose;
- }
-
- if (hdr.length) {
- buf = malloc (hdr.length);
- if (!buf)
- error ("sysconf_message: can't buffer payload");
- status = read (sysconf_fd, buf, hdr.length);
- if (status < 0)
- error ("sysconf_message payload read: %m");
- if (status != hdr.length)
- error ("sysconf_message payload: short read");
- } else
- buf = (char *)0;
-
- /* Call the handler... */
- if ((handler = proto -> local))
- (*handler) (&hdr, buf);
-
- if (buf)
- free (buf);
-}
+++ /dev/null
-# Makefile.dist
-#
-# 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.
-#
-
-CATMANPAGES =
-SRCS = main.c
-OBJS = main.o
-PROG = statmsg
-MAN =
-
-DEBUG = -g
-INCLUDES = -I.. -I../includes
-DHCPLIB = ../common/libdhcp.a
-CFLAGS = $(DEBUG) $(PREDEFINES) $(INCLUDES) $(COPTS)
-
-all: $(PROG) $(CATMANPAGES)
-
-install: $(PROG) $(CATMANPAGES)
- $(INSTALL) statmsg $(BINDIR)
- $(CHMOD) 755 $(BINDIR)/statmsg
- if [ ! -d $(ADMMANDIR) ]; then \
- mkdir $(ADMMANDIR); \
- chmod 755 $(ADMMANDIR); \
- fi
-# $(MANINSTALL) $(MANFROM) statmsg.cat8 $(MANTO) \
-# $(ADMMANDIR)/statmsg$(ADMMANEXT)
-
-clean:
- -rm -f $(OBJS)
-
-realclean: clean
- -rm -f $(PROG) $(CATMANPAGES) *~ #*
-
-distclean: realclean
- -rm -f Makefile
-
-# These should only be done on 4.4 BSD-based systems, since the mandoc
-# macros aren't available on older unices. Catted man pages are
-# provided in the distribution so that this doesn't become a problem.
-
-statmsg.cat8: statmsg.8
- sed -e "s#ETCDIR#$(ETC)#" -e "s#DBDIR#$(VARDB)#" \
- -e "s#RUNDIR#$(VARRUN)#" < statmsg.8 \
- | nroff -man >statmsg.cat8
-
-$(PROG): $(OBJS) $(DHCPLIB)
- $(CC) $(LFLAGS) -o $(PROG) $(OBJS) $(DHCPLIB) $(LIBS)
-
-# Dependencies (semi-automatically-generated)
+++ /dev/null
-/* main.c
-
- System status updater...
-
- !!!Boy, howdy, is this ever not guaranteed not to change!!! */
-
-/*
- * 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''.
- */
-
-#ifndef lint
-static char copyright[] =
-"$Id: main.c,v 1.3 1997/11/29 07:48:37 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n";
-#endif /* not lint */
-
-#include "dhcpd.h"
-
-int log_priority;
-int log_perror = 1;
-
-int main (argc, argv, envp)
- int argc;
- char **argv;
- char **envp;
-{
- struct sockaddr_un name;
- int sysconf_fd;
- struct sysconf_header hdr;
- int status;
- char *buf;
- int len;
-
-#ifdef SYSLOG_4_2
- openlog ("statmsg", LOG_NDELAY);
- log_priority = LOG_DAEMON;
-#else
- openlog ("statmsg", LOG_NDELAY, LOG_DAEMON);
-#endif
-
-#if !(defined (DEBUG) || defined (SYSLOG_4_2) || defined (__CYGWIN32__))
- setlogmask (LOG_UPTO (LOG_INFO));
-#endif
-
- if (argc < 2)
- error ("usage: statmsg type [data]");
-
- hdr.length = 0;
- if (!strcmp (argv [1], "network-location-changed"))
- hdr.type = NETWORK_LOCATION_CHANGED;
- else
- error ("unknown status message type %s", argv [1]);
-
- sysconf_fd = socket (AF_UNIX, SOCK_STREAM, 0);
- if (sysconf_fd < 0)
- error ("unable to create sysconf socket: %m");
-
- /* XXX for now... */
- name.sun_family = PF_UNIX;
- strcpy (name.sun_path, "/var/run/sysconf");
-#if defined (HAVE_SA_LEN)
- name.sun_len =
-#endif
- len = ((sizeof name) - (sizeof name.sun_path) +
- strlen (name.sun_path));
-
- if (connect (sysconf_fd, (struct sockaddr *)&name, len) < 0)
- error ("can't connect to sysconf socket: %m");
-
- status = write (sysconf_fd, &hdr, sizeof hdr);
- if (status < 0)
- error ("sysconf: %m");
- if (status < sizeof (hdr))
- error ("sysconf: short write");
-
- if (hdr.length) {
- status = write (sysconf_fd, buf, hdr.length);
- if (status < 0)
- error ("sysconf payload write: %m");
- if (status != hdr.length)
- error ("sysconf payload: short write");
- }
-
- exit (0);
-}
-
-void cleanup ()
-{
-}
+++ /dev/null
-# Makefile.dist
-#
-# 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.
-#
-
-CATMANPAGES =
-SRCS = sysconfd.c
-OBJS = sysconfd.o
-PROG = sysconfd
-MAN =
-
-DEBUG = -g
-INCLUDES = -I.. -I../includes
-DHCPLIB = ../common/libdhcp.a
-CFLAGS = $(DEBUG) $(PREDEFINES) $(INCLUDES) $(COPTS)
-
-all: $(PROG) $(CATMANPAGES)
-
-install: $(PROG) $(CATMANPAGES)
- $(INSTALL) sysconfd $(BINDIR)
- $(CHMOD) 755 $(BINDIR)/sysconfd
- if [ ! -d $(ADMMANDIR) ]; then \
- mkdir $(ADMMANDIR); \
- chmod 755 $(ADMMANDIR); \
- fi
-# $(MANINSTALL) $(MANFROM) sysconfd.cat8 $(MANTO) \
-# $(ADMMANDIR)/sysconfd$(ADMMANEXT)
-
-clean:
- -rm -f $(OBJS)
-
-realclean: clean
- -rm -f $(PROG) $(CATMANPAGES) *~ #*
-
-distclean: realclean
- -rm -f Makefile
-
-# These should only be done on 4.4 BSD-based systems, since the mandoc
-# macros aren't available on older unices. Catted man pages are
-# provided in the distribution so that this doesn't become a problem.
-
-sysconfd.cat8: sysconfd.8
- sed -e "s#ETCDIR#$(ETC)#" -e "s#DBDIR#$(VARDB)#" \
- -e "s#RUNDIR#$(VARRUN)#" < sysconfd.8 \
- | nroff -man >sysconfd.cat8
-
-$(PROG): $(OBJS) $(DHCPLIB)
- $(CC) $(LFLAGS) -o $(PROG) $(OBJS) $(DHCPLIB) $(LIBS)
-
-# Dependencies (semi-automatically-generated)
+++ /dev/null
-/* main.c
-
- System configuration status daemon...
-
- !!!Boy, howdy, is this ever not guaranteed not to change!!! */
-
-/*
- * 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''.
- */
-
-#ifndef lint
-static char copyright[] =
-"$Id: sysconfd.c,v 1.3 1997/11/29 07:49:06 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n";
-#endif /* not lint */
-
-#include "dhcpd.h"
-
-int sysconf_fd;
-
-struct sysconf_client {
- struct sysconf_client *next;
- int fd;
-} *clients;
-
-static void new_connection PROTO ((struct protocol *));
-static void client_input PROTO ((struct protocol *));
-
-int log_priority;
-int log_perror;
-
-struct interface_info fallback_interface;
-TIME cur_time;
-u_int16_t local_port;
-
-
-int main (argc, argv, envp)
- int argc;
- char **argv;
- char **envp;
-{
- struct sockaddr_un name;
- int sysconf_fd;
- int pid;
- int len;
-
-#ifdef SYSLOG_4_2
- openlog ("sysconfd", LOG_NDELAY);
- log_priority = LOG_DAEMON;
-#else
- openlog ("sysconfd", LOG_NDELAY, LOG_DAEMON);
-#endif
-
-#if !(defined (DEBUG) || defined (SYSLOG_4_2) || defined (__CYGWIN32__))
- setlogmask (LOG_UPTO (LOG_INFO));
-#endif
-
- /* Make a socket... */
- sysconf_fd = socket (AF_UNIX, SOCK_STREAM, 0);
- if (sysconf_fd < 0)
- error ("unable to create sysconf socket: %m");
-
- /* XXX for now... */
- name.sun_family = PF_UNIX;
- strcpy (name.sun_path, "/var/run/sysconf");
-#if defined (HAVE_SA_LEN)
- name.sun_len =
-#endif
- len = ((sizeof name) - (sizeof name.sun_path) +
- strlen (name.sun_path));
- unlink (name.sun_path);
-
- /* Bind to it... */
- if (bind (sysconf_fd, (struct sockaddr *)&name, len) < 0)
- error ("can't bind to sysconf socket: %m");
-
- /* Listen for connections... */
- if (listen (sysconf_fd, 1) < 0)
- error ("can't listen on sysconf socket: %m");
-
- /* Stop logging to stderr... */
- log_perror = 0;
-
- /* Become a daemon... */
- if ((pid = fork ()) < 0)
- error ("Can't fork daemon: %m");
- else if (pid)
- exit (0);
-
- /* Become session leader... */
- (void)setsid ();
-
- /* Set up a protocol structure for it... */
- add_protocol ("listener", sysconf_fd, new_connection, 0);
-
- /* Kernel status stuff goes here... */
-
- /* Wait for something to happen... */
- dispatch ();
-
- exit (0);
-}
-
-void new_connection (proto)
- struct protocol *proto;
-{
- struct sockaddr_un name;
- int namelen;
- struct sysconf_client *tmp;
- int new_fd;
-
- tmp = (struct sysconf_client *)malloc (sizeof *tmp);
- if (tmp < 0)
- error ("Can't find memory for new client!");
- memset (tmp, 0, sizeof *tmp);
-
- namelen = sizeof name;
- new_fd = accept (proto -> fd, (struct sockaddr *)&name, &namelen);
- if (new_fd < 0)
- warn ("accept: %m");
-
- tmp -> next = clients;
- tmp -> fd = new_fd;
- clients = tmp;
-
- add_protocol ("aclient", new_fd, client_input, 0);
-}
-
-void client_input (proto)
- struct protocol *proto;
-{
- struct sysconf_header hdr;
- int status;
- char *buf;
- void (*handler) PROTO ((struct sysconf_header *, void *));
- struct sysconf_client *client;
-
- status = read (proto -> fd, &hdr, sizeof hdr);
- if (status < 0) {
- blow:
- warn ("client_input: %m");
- close (proto -> fd);
- remove_protocol (proto);
- return;
- }
- if (status < sizeof (hdr)) {
- warn ("client_input: short message");
- goto blow;
- }
-
- if (hdr.length) {
- buf = malloc (hdr.length);
- if (!buf) {
- warn ("client_input: can't buffer payload");
- goto blow;
- }
- status = read (proto -> fd, buf, hdr.length);
- if (status < 0) {
- warn ("client_input payload read: %m");
- goto blow;
- }
- if (status != hdr.length) {
- warn ("client_input payload: short read");
- goto blow;
- }
- } else
- buf = (char *)0;
-
- for (client = clients; client; client = client -> next) {
- if (client -> fd == proto -> fd)
- continue;
-
- status = write (client -> fd, &hdr, sizeof hdr);
- if (status < 0) {
- warn ("client_input: %m");
- continue;
- }
- if (status < sizeof (hdr)) {
- warn ("client_input: short write");
- continue;
- }
-
- if (hdr.length) {
- status = write (client -> fd, buf, hdr.length);
- if (status < 0) {
- warn ("client_input payload write: %m");
- continue;
- }
- if (status != hdr.length) {
- warn ("client_input payload: short write");
- continue;
- }
- }
- }
-
- if (buf)
- free (buf);
-}
-
-void cleanup ()
-{
-}
-
-int commit_leases ()
-{
- return 0;
-}
-
-int write_lease (lease)
- struct lease *lease;
-{
- return 0;
-}
-
-void db_startup ()
-{
-}
-
-void bootp (packet)
- struct packet *packet;
-{
-}
-
-void dhcp (packet)
- struct packet *packet;
-{
-}
-
-
projects / thirdparty / dhcp.git / commitdiff
