1482 lines
33 KiB
C
1482 lines
33 KiB
C
/*
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* Copyright (c) 1983, 1989, 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1983, 1989, 1991, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)route.c 8.3 (Berkeley) 3/19/94";
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#endif
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static const char rcsid[] =
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"$Id$";
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/file.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <sys/sysctl.h>
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#include <net/if.h>
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#include <net/route.h>
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#include <net/if_dl.h>
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#include <netinet/in.h>
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#include <netatalk/at.h>
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#ifdef NS
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#include <netns/ns.h>
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#endif
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sysexits.h>
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#include <unistd.h>
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struct keytab {
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char *kt_cp;
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int kt_i;
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} keywords[] = {
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#include "keywords.h"
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{0, 0}
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};
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struct ortentry route;
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union sockunion {
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struct sockaddr sa;
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struct sockaddr_in sin;
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struct sockaddr_at sat;
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#ifdef NS
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struct sockaddr_ns sns;
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#endif
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struct sockaddr_dl sdl;
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} so_dst, so_gate, so_mask, so_genmask, so_ifa, so_ifp;
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typedef union sockunion *sup;
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int pid, rtm_addrs, uid;
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int s;
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int forcehost, forcenet, doflush, nflag, af, qflag, tflag, keyword();
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int iflag, verbose, aflen = sizeof (struct sockaddr_in);
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int locking, lockrest, debugonly;
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struct rt_metrics rt_metrics;
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u_long rtm_inits;
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struct in_addr inet_makeaddr();
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int atalk_aton __P((const char *, struct at_addr *));
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char *atalk_ntoa __P((struct at_addr));
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char *routename(), *netname();
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void flushroutes(), newroute(), monitor(), sockaddr(), sodump(), bprintf();
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void print_getmsg(), print_rtmsg(), pmsg_common(), pmsg_addrs(), mask_addr();
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int getaddr(), rtmsg(), x25_makemask();
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extern char *inet_ntoa(), *iso_ntoa(), *link_ntoa();
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void usage __P((const char *)) __dead2;
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void
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usage(cp)
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const char *cp;
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{
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if (cp)
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warnx("bad keyword: %s", cp);
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(void) fprintf(stderr,
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"usage: route [-dnqtv] command [[modifiers] args]\n");
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exit(EX_USAGE);
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/* NOTREACHED */
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}
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#define ROUNDUP(a) \
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((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
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#define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
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int
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main(argc, argv)
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int argc;
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char **argv;
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{
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int ch;
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if (argc < 2)
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usage((char *)NULL);
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while ((ch = getopt(argc, argv, "nqdtv")) != -1)
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switch(ch) {
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case 'n':
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nflag = 1;
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break;
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case 'q':
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qflag = 1;
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break;
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case 'v':
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verbose = 1;
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break;
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case 't':
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tflag = 1;
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break;
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case 'd':
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debugonly = 1;
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break;
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case '?':
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default:
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usage((char *)NULL);
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}
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argc -= optind;
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argv += optind;
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pid = getpid();
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uid = getuid();
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if (tflag)
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s = open("/dev/null", O_WRONLY, 0);
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else
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s = socket(PF_ROUTE, SOCK_RAW, 0);
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if (s < 0)
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err(EX_OSERR, "socket");
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setuid(uid);
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if (*argv)
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switch (keyword(*argv)) {
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case K_GET:
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uid = 0;
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/* FALLTHROUGH */
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case K_CHANGE:
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case K_ADD:
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case K_DELETE:
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newroute(argc, argv);
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exit(0);
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/* NOTREACHED */
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case K_MONITOR:
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monitor();
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/* NOTREACHED */
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case K_FLUSH:
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flushroutes(argc, argv);
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exit(0);
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/* NOTREACHED */
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}
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usage(*argv);
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/* NOTREACHED */
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}
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/*
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* Purge all entries in the routing tables not
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* associated with network interfaces.
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*/
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void
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flushroutes(argc, argv)
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int argc;
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char *argv[];
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{
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size_t needed;
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int mib[6], rlen, seqno;
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char *buf, *next, *lim;
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register struct rt_msghdr *rtm;
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if (uid) {
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errx(EX_NOPERM, "must be root to alter routing table");
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}
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shutdown(s, 0); /* Don't want to read back our messages */
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if (argc > 1) {
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argv++;
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if (argc == 2 && **argv == '-')
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switch (keyword(*argv + 1)) {
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case K_INET:
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af = AF_INET;
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break;
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case K_ATALK:
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af = AF_APPLETALK;
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break;
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#ifdef NS
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case K_XNS:
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af = AF_NS;
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break;
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#endif
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case K_LINK:
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af = AF_LINK;
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break;
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default:
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goto bad;
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} else
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bad: usage(*argv);
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}
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mib[0] = CTL_NET;
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mib[1] = PF_ROUTE;
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mib[2] = 0; /* protocol */
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mib[3] = 0; /* wildcard address family */
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mib[4] = NET_RT_DUMP;
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mib[5] = 0; /* no flags */
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if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
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err(EX_OSERR, "route-sysctl-estimate");
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if ((buf = malloc(needed)) == NULL)
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errx(EX_OSERR, "malloc failed");
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if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
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err(EX_OSERR, "route-sysctl-get");
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lim = buf + needed;
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if (verbose)
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(void) printf("Examining routing table from sysctl\n");
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seqno = 0; /* ??? */
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for (next = buf; next < lim; next += rtm->rtm_msglen) {
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rtm = (struct rt_msghdr *)next;
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if (verbose)
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print_rtmsg(rtm, rtm->rtm_msglen);
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if ((rtm->rtm_flags & RTF_GATEWAY) == 0)
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continue;
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if (af) {
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struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
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if (sa->sa_family != af)
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continue;
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}
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if (debugonly)
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continue;
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rtm->rtm_type = RTM_DELETE;
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rtm->rtm_seq = seqno;
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rlen = write(s, next, rtm->rtm_msglen);
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if (rlen < (int)rtm->rtm_msglen) {
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warn("write to routing socket");
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(void) printf("got only %d for rlen\n", rlen);
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break;
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}
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seqno++;
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if (qflag)
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continue;
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if (verbose)
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print_rtmsg(rtm, rlen);
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else {
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struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
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(void) printf("%-20.20s ", rtm->rtm_flags & RTF_HOST ?
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routename(sa) : netname(sa));
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sa = (struct sockaddr *)(sa->sa_len + (char *)sa);
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(void) printf("%-20.20s ", routename(sa));
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(void) printf("done\n");
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}
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}
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}
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char *
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routename(sa)
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struct sockaddr *sa;
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{
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register char *cp;
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static char line[MAXHOSTNAMELEN + 1];
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struct hostent *hp;
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static char domain[MAXHOSTNAMELEN + 1];
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static int first = 1;
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#ifdef NS
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char *ns_print();
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#endif
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if (first) {
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first = 0;
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if (gethostname(domain, MAXHOSTNAMELEN) == 0 &&
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(cp = index(domain, '.'))) {
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domain[MAXHOSTNAMELEN] = '\0';
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(void) strcpy(domain, cp + 1);
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} else
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domain[0] = 0;
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}
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if (sa->sa_len == 0)
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strcpy(line, "default");
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else switch (sa->sa_family) {
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case AF_INET:
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{ struct in_addr in;
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in = ((struct sockaddr_in *)sa)->sin_addr;
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cp = 0;
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if (in.s_addr == INADDR_ANY || sa->sa_len < 4)
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cp = "default";
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if (cp == 0 && !nflag) {
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hp = gethostbyaddr((char *)&in, sizeof (struct in_addr),
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AF_INET);
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if (hp) {
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if ((cp = index(hp->h_name, '.')) &&
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!strcmp(cp + 1, domain))
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*cp = 0;
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cp = hp->h_name;
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}
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}
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if (cp) {
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strncpy(line, cp, sizeof(line) - 1);
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line[sizeof(line) - 1] = '\0';
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} else {
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/* XXX - why not inet_ntoa()? */
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#define C(x) (unsigned)((x) & 0xff)
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in.s_addr = ntohl(in.s_addr);
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(void) sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24),
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C(in.s_addr >> 16), C(in.s_addr >> 8), C(in.s_addr));
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}
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break;
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}
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case AF_APPLETALK:
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(void) snprintf(line, sizeof(line), "atalk %s",
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atalk_ntoa(((struct sockaddr_at *)sa)->sat_addr));
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break;
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#ifdef NS
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case AF_NS:
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return (ns_print((struct sockaddr_ns *)sa));
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#endif
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case AF_LINK:
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return (link_ntoa((struct sockaddr_dl *)sa));
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default:
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{ u_short *s = (u_short *)sa;
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u_short *slim = s + ((sa->sa_len + 1) >> 1);
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char *cp = line + sprintf(line, "(%d)", sa->sa_family);
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char *cpe = line + sizeof(line);
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while (++s < slim && cp < cpe) /* start with sa->sa_data */
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cp += snprintf(cp, cpe - cp, " %x", *s);
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break;
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}
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}
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return (line);
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}
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/*
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* Return the name of the network whose address is given.
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* The address is assumed to be that of a net or subnet, not a host.
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*/
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char *
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netname(sa)
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struct sockaddr *sa;
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{
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char *cp = 0;
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static char line[MAXHOSTNAMELEN + 1];
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struct netent *np = 0;
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u_long net, mask;
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register u_long i;
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int subnetshift;
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#ifdef NS
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char *ns_print();
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#endif
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switch (sa->sa_family) {
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case AF_INET:
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{ struct in_addr in;
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in = ((struct sockaddr_in *)sa)->sin_addr;
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i = in.s_addr = ntohl(in.s_addr);
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if (in.s_addr == 0)
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cp = "default";
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else if (!nflag) {
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if (IN_CLASSA(i)) {
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mask = IN_CLASSA_NET;
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subnetshift = 8;
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} else if (IN_CLASSB(i)) {
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mask = IN_CLASSB_NET;
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subnetshift = 8;
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} else {
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mask = IN_CLASSC_NET;
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subnetshift = 4;
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}
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/*
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* If there are more bits than the standard mask
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* would suggest, subnets must be in use.
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* Guess at the subnet mask, assuming reasonable
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* width subnet fields.
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*/
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while (in.s_addr &~ mask)
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mask = (long)mask >> subnetshift;
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net = in.s_addr & mask;
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while ((mask & 1) == 0)
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mask >>= 1, net >>= 1;
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np = getnetbyaddr(net, AF_INET);
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if (np)
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cp = np->n_name;
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}
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if (cp)
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strncpy(line, cp, sizeof(line));
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else if ((in.s_addr & 0xffffff) == 0)
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(void) sprintf(line, "%u", C(in.s_addr >> 24));
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else if ((in.s_addr & 0xffff) == 0)
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(void) sprintf(line, "%u.%u", C(in.s_addr >> 24),
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C(in.s_addr >> 16));
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else if ((in.s_addr & 0xff) == 0)
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(void) sprintf(line, "%u.%u.%u", C(in.s_addr >> 24),
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C(in.s_addr >> 16), C(in.s_addr >> 8));
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else
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(void) sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24),
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C(in.s_addr >> 16), C(in.s_addr >> 8),
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C(in.s_addr));
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break;
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}
|
|
|
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case AF_APPLETALK:
|
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(void) snprintf(line, sizeof(line), "atalk %s",
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atalk_ntoa(((struct sockaddr_at *)sa)->sat_addr));
|
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break;
|
|
|
|
#ifdef NS
|
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case AF_NS:
|
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return (ns_print((struct sockaddr_ns *)sa));
|
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break;
|
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#endif
|
|
|
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case AF_LINK:
|
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return (link_ntoa((struct sockaddr_dl *)sa));
|
|
|
|
|
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default:
|
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{ u_short *s = (u_short *)sa->sa_data;
|
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u_short *slim = s + ((sa->sa_len + 1)>>1);
|
|
char *cp = line + sprintf(line, "af %d:", sa->sa_family);
|
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char *cpe = line + sizeof(line);
|
|
|
|
while (s < slim && cp < cpe)
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cp += snprintf(cp, cpe - cp, " %x", *s++);
|
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break;
|
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}
|
|
}
|
|
return (line);
|
|
}
|
|
|
|
void
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|
set_metric(value, key)
|
|
char *value;
|
|
int key;
|
|
{
|
|
int flag = 0;
|
|
u_long noval, *valp = &noval;
|
|
|
|
switch (key) {
|
|
#define caseof(x, y, z) case x: valp = &rt_metrics.z; flag = y; break
|
|
caseof(K_MTU, RTV_MTU, rmx_mtu);
|
|
caseof(K_HOPCOUNT, RTV_HOPCOUNT, rmx_hopcount);
|
|
caseof(K_EXPIRE, RTV_EXPIRE, rmx_expire);
|
|
caseof(K_RECVPIPE, RTV_RPIPE, rmx_recvpipe);
|
|
caseof(K_SENDPIPE, RTV_SPIPE, rmx_sendpipe);
|
|
caseof(K_SSTHRESH, RTV_SSTHRESH, rmx_ssthresh);
|
|
caseof(K_RTT, RTV_RTT, rmx_rtt);
|
|
caseof(K_RTTVAR, RTV_RTTVAR, rmx_rttvar);
|
|
}
|
|
rtm_inits |= flag;
|
|
if (lockrest || locking)
|
|
rt_metrics.rmx_locks |= flag;
|
|
if (locking)
|
|
locking = 0;
|
|
*valp = atoi(value);
|
|
}
|
|
|
|
void
|
|
newroute(argc, argv)
|
|
int argc;
|
|
register char **argv;
|
|
{
|
|
char *cmd, *dest = "", *gateway = "", *err;
|
|
int ishost = 0, ret, attempts, oerrno, flags = RTF_STATIC;
|
|
int key;
|
|
struct hostent *hp = 0;
|
|
|
|
if (uid) {
|
|
errx(EX_NOPERM, "must be root to alter routing table");
|
|
}
|
|
cmd = argv[0];
|
|
if (*cmd != 'g')
|
|
shutdown(s, 0); /* Don't want to read back our messages */
|
|
while (--argc > 0) {
|
|
if (**(++argv)== '-') {
|
|
switch (key = keyword(1 + *argv)) {
|
|
case K_LINK:
|
|
af = AF_LINK;
|
|
aflen = sizeof(struct sockaddr_dl);
|
|
break;
|
|
case K_INET:
|
|
af = AF_INET;
|
|
aflen = sizeof(struct sockaddr_in);
|
|
break;
|
|
case K_ATALK:
|
|
af = AF_APPLETALK;
|
|
aflen = sizeof(struct sockaddr_at);
|
|
break;
|
|
case K_SA:
|
|
af = PF_ROUTE;
|
|
aflen = sizeof(union sockunion);
|
|
break;
|
|
#ifdef NS
|
|
case K_XNS:
|
|
af = AF_NS;
|
|
aflen = sizeof(struct sockaddr_ns);
|
|
break;
|
|
#endif
|
|
case K_IFACE:
|
|
case K_INTERFACE:
|
|
iflag++;
|
|
break;
|
|
case K_NOSTATIC:
|
|
flags &= ~RTF_STATIC;
|
|
break;
|
|
case K_LLINFO:
|
|
flags |= RTF_LLINFO;
|
|
break;
|
|
case K_LOCK:
|
|
locking = 1;
|
|
break;
|
|
case K_LOCKREST:
|
|
lockrest = 1;
|
|
break;
|
|
case K_HOST:
|
|
forcehost++;
|
|
break;
|
|
case K_REJECT:
|
|
flags |= RTF_REJECT;
|
|
break;
|
|
case K_BLACKHOLE:
|
|
flags |= RTF_BLACKHOLE;
|
|
break;
|
|
case K_PROTO1:
|
|
flags |= RTF_PROTO1;
|
|
break;
|
|
case K_PROTO2:
|
|
flags |= RTF_PROTO2;
|
|
break;
|
|
case K_CLONING:
|
|
flags |= RTF_CLONING;
|
|
break;
|
|
case K_XRESOLVE:
|
|
flags |= RTF_XRESOLVE;
|
|
break;
|
|
case K_STATIC:
|
|
flags |= RTF_STATIC;
|
|
break;
|
|
case K_IFA:
|
|
argc--;
|
|
(void) getaddr(RTA_IFA, *++argv, 0);
|
|
break;
|
|
case K_IFP:
|
|
argc--;
|
|
(void) getaddr(RTA_IFP, *++argv, 0);
|
|
break;
|
|
case K_GENMASK:
|
|
argc--;
|
|
(void) getaddr(RTA_GENMASK, *++argv, 0);
|
|
break;
|
|
case K_GATEWAY:
|
|
argc--;
|
|
(void) getaddr(RTA_GATEWAY, *++argv, 0);
|
|
break;
|
|
case K_DST:
|
|
argc--;
|
|
ishost = getaddr(RTA_DST, *++argv, &hp);
|
|
dest = *argv;
|
|
break;
|
|
case K_NETMASK:
|
|
argc--;
|
|
(void) getaddr(RTA_NETMASK, *++argv, 0);
|
|
/* FALLTHROUGH */
|
|
case K_NET:
|
|
forcenet++;
|
|
break;
|
|
case K_MTU:
|
|
case K_HOPCOUNT:
|
|
case K_EXPIRE:
|
|
case K_RECVPIPE:
|
|
case K_SENDPIPE:
|
|
case K_SSTHRESH:
|
|
case K_RTT:
|
|
case K_RTTVAR:
|
|
argc--;
|
|
set_metric(*++argv, key);
|
|
break;
|
|
default:
|
|
usage(1+*argv);
|
|
}
|
|
} else {
|
|
if ((rtm_addrs & RTA_DST) == 0) {
|
|
dest = *argv;
|
|
ishost = getaddr(RTA_DST, *argv, &hp);
|
|
} else if ((rtm_addrs & RTA_GATEWAY) == 0) {
|
|
gateway = *argv;
|
|
(void) getaddr(RTA_GATEWAY, *argv, &hp);
|
|
} else {
|
|
(void) getaddr(RTA_NETMASK, *argv, 0);
|
|
}
|
|
}
|
|
}
|
|
if (forcehost)
|
|
ishost = 1;
|
|
if (forcenet)
|
|
ishost = 0;
|
|
flags |= RTF_UP;
|
|
if (ishost)
|
|
flags |= RTF_HOST;
|
|
if (iflag == 0)
|
|
flags |= RTF_GATEWAY;
|
|
for (attempts = 1; ; attempts++) {
|
|
errno = 0;
|
|
if ((ret = rtmsg(*cmd, flags)) == 0)
|
|
break;
|
|
if (errno != ENETUNREACH && errno != ESRCH)
|
|
break;
|
|
if (af == AF_INET && *gateway && hp && hp->h_addr_list[1]) {
|
|
hp->h_addr_list++;
|
|
bcopy(hp->h_addr_list[0], &so_gate.sin.sin_addr,
|
|
MIN(hp->h_length, sizeof(so_gate.sin.sin_addr)));
|
|
} else
|
|
break;
|
|
}
|
|
if (*cmd == 'g')
|
|
exit(0);
|
|
oerrno = errno;
|
|
(void) printf("%s %s %s", cmd, ishost? "host" : "net", dest);
|
|
if (*gateway) {
|
|
(void) printf(": gateway %s", gateway);
|
|
if (attempts > 1 && ret == 0 && af == AF_INET)
|
|
(void) printf(" (%s)",
|
|
inet_ntoa(((struct sockaddr_in *)&route.rt_gateway)->sin_addr));
|
|
}
|
|
if (ret == 0)
|
|
(void) printf("\n");
|
|
else {
|
|
switch (oerrno) {
|
|
case ESRCH:
|
|
err = "not in table";
|
|
break;
|
|
case EBUSY:
|
|
err = "entry in use";
|
|
break;
|
|
case ENOBUFS:
|
|
err = "routing table overflow";
|
|
break;
|
|
default:
|
|
err = strerror(oerrno);
|
|
break;
|
|
}
|
|
(void) printf(": %s\n", err);
|
|
}
|
|
}
|
|
|
|
void
|
|
inet_makenetandmask(net, sin, bits)
|
|
u_long net, bits;
|
|
register struct sockaddr_in *sin;
|
|
{
|
|
u_long addr, mask = 0;
|
|
register char *cp;
|
|
|
|
rtm_addrs |= RTA_NETMASK;
|
|
if (net == 0)
|
|
mask = addr = 0;
|
|
else if (bits) {
|
|
addr = net;
|
|
mask = 0xffffffff << (32 - bits);
|
|
} else if (net < 128) {
|
|
addr = net << IN_CLASSA_NSHIFT;
|
|
mask = IN_CLASSA_NET;
|
|
} else if (net < 65536) {
|
|
addr = net << IN_CLASSB_NSHIFT;
|
|
mask = IN_CLASSB_NET;
|
|
} else if (net < 16777216L) {
|
|
addr = net << IN_CLASSC_NSHIFT;
|
|
mask = IN_CLASSC_NET;
|
|
} else {
|
|
addr = net;
|
|
if ((addr & IN_CLASSA_HOST) == 0)
|
|
mask = IN_CLASSA_NET;
|
|
else if ((addr & IN_CLASSB_HOST) == 0)
|
|
mask = IN_CLASSB_NET;
|
|
else if ((addr & IN_CLASSC_HOST) == 0)
|
|
mask = IN_CLASSC_NET;
|
|
else
|
|
mask = -1;
|
|
}
|
|
sin->sin_addr.s_addr = htonl(addr);
|
|
sin = &so_mask.sin;
|
|
sin->sin_addr.s_addr = htonl(mask);
|
|
sin->sin_len = 0;
|
|
sin->sin_family = 0;
|
|
cp = (char *)(&sin->sin_addr + 1);
|
|
while (*--cp == 0 && cp > (char *)sin)
|
|
;
|
|
sin->sin_len = 1 + cp - (char *)sin;
|
|
}
|
|
|
|
/*
|
|
* Interpret an argument as a network address of some kind,
|
|
* returning 1 if a host address, 0 if a network address.
|
|
*/
|
|
int
|
|
getaddr(which, s, hpp)
|
|
int which;
|
|
char *s;
|
|
struct hostent **hpp;
|
|
{
|
|
register sup su;
|
|
#ifdef NS
|
|
struct ns_addr ns_addr();
|
|
#endif
|
|
struct hostent *hp;
|
|
struct netent *np;
|
|
u_long val;
|
|
char *q,qs;
|
|
|
|
if (af == 0) {
|
|
af = AF_INET;
|
|
aflen = sizeof(struct sockaddr_in);
|
|
}
|
|
rtm_addrs |= which;
|
|
switch (which) {
|
|
case RTA_DST:
|
|
su = &so_dst;
|
|
break;
|
|
case RTA_GATEWAY:
|
|
su = &so_gate;
|
|
if (iflag) {
|
|
#define MAX_IFACES 400
|
|
int sock;
|
|
struct ifreq iflist[MAX_IFACES];
|
|
struct ifconf ifconf;
|
|
struct ifreq *ifr, *ifr_end;
|
|
struct sockaddr_dl *dl, *sdl = NULL;
|
|
|
|
/* Get socket */
|
|
if ((sock = socket(PF_INET, SOCK_DGRAM, 0)) < 0)
|
|
err(1, "socket");
|
|
|
|
/* Get interface list */
|
|
ifconf.ifc_req = iflist;
|
|
ifconf.ifc_len = sizeof(iflist);
|
|
if (ioctl(sock, SIOCGIFCONF, &ifconf) < 0)
|
|
err(1, "ioctl(SIOCGIFCONF)");
|
|
close(sock);
|
|
|
|
/* Look for this interface in the list */
|
|
for (ifr = ifconf.ifc_req,
|
|
ifr_end = (struct ifreq *)
|
|
(ifconf.ifc_buf + ifconf.ifc_len);
|
|
ifr < ifr_end;
|
|
ifr = (struct ifreq *) ((char *) &ifr->ifr_addr
|
|
+ ifr->ifr_addr.sa_len)) {
|
|
dl = (struct sockaddr_dl *)&ifr->ifr_addr;
|
|
if (ifr->ifr_addr.sa_family == AF_LINK
|
|
&& (ifr->ifr_flags & IFF_POINTOPOINT)
|
|
&& !strncmp(s, dl->sdl_data, dl->sdl_nlen)
|
|
&& s[dl->sdl_nlen] == 0) {
|
|
sdl = dl;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* If we found it, then use it */
|
|
if (sdl) {
|
|
su->sdl = *sdl;
|
|
return(1);
|
|
}
|
|
}
|
|
break;
|
|
case RTA_NETMASK:
|
|
su = &so_mask;
|
|
break;
|
|
case RTA_GENMASK:
|
|
su = &so_genmask;
|
|
break;
|
|
case RTA_IFP:
|
|
su = &so_ifp;
|
|
break;
|
|
case RTA_IFA:
|
|
su = &so_ifa;
|
|
break;
|
|
default:
|
|
usage("internal error");
|
|
/*NOTREACHED*/
|
|
}
|
|
su->sa.sa_len = aflen;
|
|
su->sa.sa_family = af; /* cases that don't want it have left already */
|
|
if (strcmp(s, "default") == 0) {
|
|
/*
|
|
* Default is net 0.0.0.0/0
|
|
*/
|
|
switch (which) {
|
|
case RTA_DST:
|
|
forcenet++;
|
|
/* bzero(su, sizeof(*su)); *//* for readability */
|
|
(void) getaddr(RTA_NETMASK, s, 0);
|
|
break;
|
|
case RTA_NETMASK:
|
|
case RTA_GENMASK:
|
|
/* bzero(su, sizeof(*su)); *//* for readability */
|
|
}
|
|
return (0);
|
|
}
|
|
switch (af) {
|
|
#ifdef NS
|
|
case AF_NS:
|
|
if (which == RTA_DST) {
|
|
extern short ns_bh[3];
|
|
struct sockaddr_ns *sms = &(so_mask.sns);
|
|
bzero((char *)sms, sizeof(*sms));
|
|
sms->sns_family = 0;
|
|
sms->sns_len = 6;
|
|
sms->sns_addr.x_net = *(union ns_net *)ns_bh;
|
|
rtm_addrs |= RTA_NETMASK;
|
|
}
|
|
su->sns.sns_addr = ns_addr(s);
|
|
return (!ns_nullhost(su->sns.sns_addr));
|
|
#endif
|
|
|
|
|
|
case AF_APPLETALK:
|
|
if (!atalk_aton(s, &su->sat.sat_addr))
|
|
errx(EX_NOHOST, "bad address: %s", s);
|
|
rtm_addrs |= RTA_NETMASK;
|
|
return(forcehost || su->sat.sat_addr.s_node != 0);
|
|
|
|
case AF_LINK:
|
|
link_addr(s, &su->sdl);
|
|
return (1);
|
|
|
|
|
|
case PF_ROUTE:
|
|
su->sa.sa_len = sizeof(*su);
|
|
sockaddr(s, &su->sa);
|
|
return (1);
|
|
|
|
case AF_INET:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (hpp == NULL)
|
|
hpp = &hp;
|
|
*hpp = NULL;
|
|
|
|
q = strchr(s,'/');
|
|
if (q && which == RTA_DST) {
|
|
qs = *q;
|
|
*q = '\0';
|
|
if (((val = inet_addr(s)) != INADDR_NONE)) {
|
|
inet_makenetandmask(
|
|
htonl(val), &su->sin, strtoul(q+1, 0, 0));
|
|
return (0);
|
|
}
|
|
*q =qs;
|
|
}
|
|
if (((val = inet_addr(s)) != INADDR_NONE) &&
|
|
(which != RTA_DST || forcenet == 0)) {
|
|
su->sin.sin_addr.s_addr = val;
|
|
if (inet_lnaof(su->sin.sin_addr) != INADDR_ANY)
|
|
return (1);
|
|
else {
|
|
val = ntohl(val);
|
|
goto netdone;
|
|
}
|
|
}
|
|
if ((val = inet_network(s)) != INADDR_NONE ||
|
|
(forcehost == 0 && (np = getnetbyname(s)) != NULL &&
|
|
(val = np->n_net) != 0)) {
|
|
netdone:
|
|
if (which == RTA_DST)
|
|
inet_makenetandmask(val, &su->sin, 0);
|
|
return (0);
|
|
}
|
|
hp = gethostbyname(s);
|
|
if (hp) {
|
|
*hpp = hp;
|
|
su->sin.sin_family = hp->h_addrtype;
|
|
bcopy(hp->h_addr, (char *)&su->sin.sin_addr,
|
|
MIN(hp->h_length, sizeof(su->sin.sin_addr)));
|
|
return (1);
|
|
}
|
|
errx(EX_NOHOST, "bad address: %s", s);
|
|
}
|
|
|
|
|
|
#ifdef NS
|
|
short ns_nullh[] = {0,0,0};
|
|
short ns_bh[] = {-1,-1,-1};
|
|
|
|
char *
|
|
ns_print(sns)
|
|
struct sockaddr_ns *sns;
|
|
{
|
|
struct ns_addr work;
|
|
union { union ns_net net_e; u_long long_e; } net;
|
|
u_short port;
|
|
static char mybuf[50+MAXHOSTNAMELEN], cport[10], chost[25];
|
|
char *host = "";
|
|
register char *p;
|
|
register u_char *q;
|
|
|
|
work = sns->sns_addr;
|
|
port = ntohs(work.x_port);
|
|
work.x_port = 0;
|
|
net.net_e = work.x_net;
|
|
if (ns_nullhost(work) && net.long_e == 0) {
|
|
if (!port)
|
|
return ("*.*");
|
|
(void) sprintf(mybuf, "*.%XH", port);
|
|
return (mybuf);
|
|
}
|
|
|
|
if (bcmp((char *)ns_bh, (char *)work.x_host.c_host, 6) == 0)
|
|
host = "any";
|
|
else if (bcmp((char *)ns_nullh, (char *)work.x_host.c_host, 6) == 0)
|
|
host = "*";
|
|
else {
|
|
q = work.x_host.c_host;
|
|
(void) sprintf(chost, "%02X%02X%02X%02X%02X%02XH",
|
|
q[0], q[1], q[2], q[3], q[4], q[5]);
|
|
for (p = chost; *p == '0' && p < chost + 12; p++)
|
|
/* void */;
|
|
host = p;
|
|
}
|
|
if (port)
|
|
(void) sprintf(cport, ".%XH", htons(port));
|
|
else
|
|
*cport = 0;
|
|
|
|
(void) snprintf(mybuf, sizeof(mybuf), "%lxH.%s%s",
|
|
(unsigned long)ntohl(net.long_e),
|
|
host, cport);
|
|
return (mybuf);
|
|
}
|
|
#endif
|
|
|
|
void
|
|
interfaces()
|
|
{
|
|
size_t needed;
|
|
int mib[6];
|
|
char *buf, *lim, *next;
|
|
register struct rt_msghdr *rtm;
|
|
|
|
mib[0] = CTL_NET;
|
|
mib[1] = PF_ROUTE;
|
|
mib[2] = 0; /* protocol */
|
|
mib[3] = 0; /* wildcard address family */
|
|
mib[4] = NET_RT_IFLIST;
|
|
mib[5] = 0; /* no flags */
|
|
if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
|
|
err(EX_OSERR, "route-sysctl-estimate");
|
|
if ((buf = malloc(needed)) == NULL)
|
|
errx(EX_OSERR, "malloc failed");
|
|
if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
|
|
err(EX_OSERR, "actual retrieval of interface table");
|
|
lim = buf + needed;
|
|
for (next = buf; next < lim; next += rtm->rtm_msglen) {
|
|
rtm = (struct rt_msghdr *)next;
|
|
print_rtmsg(rtm, rtm->rtm_msglen);
|
|
}
|
|
}
|
|
|
|
void
|
|
monitor()
|
|
{
|
|
int n;
|
|
char msg[2048];
|
|
|
|
verbose = 1;
|
|
if (debugonly) {
|
|
interfaces();
|
|
exit(0);
|
|
}
|
|
for(;;) {
|
|
n = read(s, msg, 2048);
|
|
(void) printf("got message of size %d\n", n);
|
|
print_rtmsg((struct rt_msghdr *)msg, n);
|
|
}
|
|
}
|
|
|
|
struct {
|
|
struct rt_msghdr m_rtm;
|
|
char m_space[512];
|
|
} m_rtmsg;
|
|
|
|
int
|
|
rtmsg(cmd, flags)
|
|
int cmd, flags;
|
|
{
|
|
static int seq;
|
|
int rlen;
|
|
register char *cp = m_rtmsg.m_space;
|
|
register int l;
|
|
|
|
#define NEXTADDR(w, u) \
|
|
if (rtm_addrs & (w)) {\
|
|
l = ROUNDUP(u.sa.sa_len); bcopy((char *)&(u), cp, l); cp += l;\
|
|
if (verbose) sodump(&(u),"u");\
|
|
}
|
|
|
|
errno = 0;
|
|
bzero((char *)&m_rtmsg, sizeof(m_rtmsg));
|
|
if (cmd == 'a')
|
|
cmd = RTM_ADD;
|
|
else if (cmd == 'c')
|
|
cmd = RTM_CHANGE;
|
|
else if (cmd == 'g') {
|
|
cmd = RTM_GET;
|
|
if (so_ifp.sa.sa_family == 0) {
|
|
so_ifp.sa.sa_family = AF_LINK;
|
|
so_ifp.sa.sa_len = sizeof(struct sockaddr_dl);
|
|
rtm_addrs |= RTA_IFP;
|
|
}
|
|
} else
|
|
cmd = RTM_DELETE;
|
|
#define rtm m_rtmsg.m_rtm
|
|
rtm.rtm_type = cmd;
|
|
rtm.rtm_flags = flags;
|
|
rtm.rtm_version = RTM_VERSION;
|
|
rtm.rtm_seq = ++seq;
|
|
rtm.rtm_addrs = rtm_addrs;
|
|
rtm.rtm_rmx = rt_metrics;
|
|
rtm.rtm_inits = rtm_inits;
|
|
|
|
if (rtm_addrs & RTA_NETMASK)
|
|
mask_addr();
|
|
NEXTADDR(RTA_DST, so_dst);
|
|
NEXTADDR(RTA_GATEWAY, so_gate);
|
|
NEXTADDR(RTA_NETMASK, so_mask);
|
|
NEXTADDR(RTA_GENMASK, so_genmask);
|
|
NEXTADDR(RTA_IFP, so_ifp);
|
|
NEXTADDR(RTA_IFA, so_ifa);
|
|
rtm.rtm_msglen = l = cp - (char *)&m_rtmsg;
|
|
if (verbose)
|
|
print_rtmsg(&rtm, l);
|
|
if (debugonly)
|
|
return (0);
|
|
if ((rlen = write(s, (char *)&m_rtmsg, l)) < 0) {
|
|
warn("writing to routing socket");
|
|
return (-1);
|
|
}
|
|
if (cmd == RTM_GET) {
|
|
do {
|
|
l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg));
|
|
} while (l > 0 && (rtm.rtm_seq != seq || rtm.rtm_pid != pid));
|
|
if (l < 0)
|
|
warn("read from routing socket");
|
|
else
|
|
print_getmsg(&rtm, l);
|
|
}
|
|
#undef rtm
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
mask_addr()
|
|
{
|
|
int olen = so_mask.sa.sa_len;
|
|
register char *cp1 = olen + (char *)&so_mask, *cp2;
|
|
|
|
for (so_mask.sa.sa_len = 0; cp1 > (char *)&so_mask; )
|
|
if (*--cp1 != 0) {
|
|
so_mask.sa.sa_len = 1 + cp1 - (char *)&so_mask;
|
|
break;
|
|
}
|
|
if ((rtm_addrs & RTA_DST) == 0)
|
|
return;
|
|
switch (so_dst.sa.sa_family) {
|
|
#ifdef NS
|
|
case AF_NS:
|
|
#endif
|
|
case AF_INET:
|
|
case AF_APPLETALK:
|
|
case 0:
|
|
return;
|
|
}
|
|
cp1 = so_mask.sa.sa_len + 1 + (char *)&so_dst;
|
|
cp2 = so_dst.sa.sa_len + 1 + (char *)&so_dst;
|
|
while (cp2 > cp1)
|
|
*--cp2 = 0;
|
|
cp2 = so_mask.sa.sa_len + 1 + (char *)&so_mask;
|
|
while (cp1 > so_dst.sa.sa_data)
|
|
*--cp1 &= *--cp2;
|
|
}
|
|
|
|
char *msgtypes[] = {
|
|
"",
|
|
"RTM_ADD: Add Route",
|
|
"RTM_DELETE: Delete Route",
|
|
"RTM_CHANGE: Change Metrics or flags",
|
|
"RTM_GET: Report Metrics",
|
|
"RTM_LOSING: Kernel Suspects Partitioning",
|
|
"RTM_REDIRECT: Told to use different route",
|
|
"RTM_MISS: Lookup failed on this address",
|
|
"RTM_LOCK: fix specified metrics",
|
|
"RTM_OLDADD: caused by SIOCADDRT",
|
|
"RTM_OLDDEL: caused by SIOCDELRT",
|
|
"RTM_RESOLVE: Route created by cloning",
|
|
"RTM_NEWADDR: address being added to iface",
|
|
"RTM_DELADDR: address being removed from iface",
|
|
"RTM_IFINFO: iface status change",
|
|
"RTM_NEWMADDR: new multicast group membership on iface",
|
|
"RTM_DELMADDR: multicast group membership removed from iface",
|
|
0,
|
|
};
|
|
|
|
char metricnames[] =
|
|
"\011pksent\010rttvar\7rtt\6ssthresh\5sendpipe\4recvpipe\3expire\2hopcount"
|
|
"\1mtu";
|
|
char routeflags[] =
|
|
"\1UP\2GATEWAY\3HOST\4REJECT\5DYNAMIC\6MODIFIED\7DONE\010MASK_PRESENT"
|
|
"\011CLONING\012XRESOLVE\013LLINFO\014STATIC\015BLACKHOLE\016b016"
|
|
"\017PROTO2\020PROTO1\021PRCLONING\022WASCLONED\023PROTO3\024CHAINDELETE"
|
|
"\025PINNED\026LOCAL\027BROADCAST\030MULTICAST";
|
|
char ifnetflags[] =
|
|
"\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5PTP\6b6\7RUNNING\010NOARP"
|
|
"\011PPROMISC\012ALLMULTI\013OACTIVE\014SIMPLEX\015LINK0\016LINK1"
|
|
"\017LINK2\020MULTICAST";
|
|
char addrnames[] =
|
|
"\1DST\2GATEWAY\3NETMASK\4GENMASK\5IFP\6IFA\7AUTHOR\010BRD";
|
|
|
|
void
|
|
print_rtmsg(rtm, msglen)
|
|
register struct rt_msghdr *rtm;
|
|
int msglen;
|
|
{
|
|
struct if_msghdr *ifm;
|
|
struct ifa_msghdr *ifam;
|
|
#ifdef RTM_NEWMADDR
|
|
struct ifma_msghdr *ifmam;
|
|
#endif
|
|
|
|
if (verbose == 0)
|
|
return;
|
|
if (rtm->rtm_version != RTM_VERSION) {
|
|
(void) printf("routing message version %d not understood\n",
|
|
rtm->rtm_version);
|
|
return;
|
|
}
|
|
(void)printf("%s: len %d, ", msgtypes[rtm->rtm_type], rtm->rtm_msglen);
|
|
switch (rtm->rtm_type) {
|
|
case RTM_IFINFO:
|
|
ifm = (struct if_msghdr *)rtm;
|
|
(void) printf("if# %d, flags:", ifm->ifm_index);
|
|
bprintf(stdout, ifm->ifm_flags, ifnetflags);
|
|
pmsg_addrs((char *)(ifm + 1), ifm->ifm_addrs);
|
|
break;
|
|
case RTM_NEWADDR:
|
|
case RTM_DELADDR:
|
|
ifam = (struct ifa_msghdr *)rtm;
|
|
(void) printf("metric %d, flags:", ifam->ifam_metric);
|
|
bprintf(stdout, ifam->ifam_flags, routeflags);
|
|
pmsg_addrs((char *)(ifam + 1), ifam->ifam_addrs);
|
|
break;
|
|
#ifdef RTM_NEWMADDR
|
|
case RTM_NEWMADDR:
|
|
case RTM_DELMADDR:
|
|
ifmam = (struct ifma_msghdr *)rtm;
|
|
pmsg_addrs((char *)(ifmam + 1), ifmam->ifmam_addrs);
|
|
break;
|
|
#endif
|
|
default:
|
|
(void) printf("pid: %ld, seq %d, errno %d, flags:",
|
|
(long)rtm->rtm_pid, rtm->rtm_seq, rtm->rtm_errno);
|
|
bprintf(stdout, rtm->rtm_flags, routeflags);
|
|
pmsg_common(rtm);
|
|
}
|
|
}
|
|
|
|
void
|
|
print_getmsg(rtm, msglen)
|
|
register struct rt_msghdr *rtm;
|
|
int msglen;
|
|
{
|
|
struct sockaddr *dst = NULL, *gate = NULL, *mask = NULL;
|
|
struct sockaddr_dl *ifp = NULL;
|
|
register struct sockaddr *sa;
|
|
register char *cp;
|
|
register int i;
|
|
|
|
(void) printf(" route to: %s\n", routename(&so_dst));
|
|
if (rtm->rtm_version != RTM_VERSION) {
|
|
warnx("routing message version %d not understood",
|
|
rtm->rtm_version);
|
|
return;
|
|
}
|
|
if (rtm->rtm_msglen > msglen) {
|
|
warnx("message length mismatch, in packet %d, returned %d",
|
|
rtm->rtm_msglen, msglen);
|
|
}
|
|
if (rtm->rtm_errno) {
|
|
errno = rtm->rtm_errno;
|
|
warn("message indicates error %d", errno);
|
|
return;
|
|
}
|
|
cp = ((char *)(rtm + 1));
|
|
if (rtm->rtm_addrs)
|
|
for (i = 1; i; i <<= 1)
|
|
if (i & rtm->rtm_addrs) {
|
|
sa = (struct sockaddr *)cp;
|
|
switch (i) {
|
|
case RTA_DST:
|
|
dst = sa;
|
|
break;
|
|
case RTA_GATEWAY:
|
|
gate = sa;
|
|
break;
|
|
case RTA_NETMASK:
|
|
mask = sa;
|
|
break;
|
|
case RTA_IFP:
|
|
if (sa->sa_family == AF_LINK &&
|
|
((struct sockaddr_dl *)sa)->sdl_nlen)
|
|
ifp = (struct sockaddr_dl *)sa;
|
|
break;
|
|
}
|
|
ADVANCE(cp, sa);
|
|
}
|
|
if (dst && mask)
|
|
mask->sa_family = dst->sa_family; /* XXX */
|
|
if (dst)
|
|
(void)printf("destination: %s\n", routename(dst));
|
|
if (mask) {
|
|
int savenflag = nflag;
|
|
|
|
nflag = 1;
|
|
(void)printf(" mask: %s\n", routename(mask));
|
|
nflag = savenflag;
|
|
}
|
|
if (gate && rtm->rtm_flags & RTF_GATEWAY)
|
|
(void)printf(" gateway: %s\n", routename(gate));
|
|
if (ifp)
|
|
(void)printf(" interface: %.*s\n",
|
|
ifp->sdl_nlen, ifp->sdl_data);
|
|
(void)printf(" flags: ");
|
|
bprintf(stdout, rtm->rtm_flags, routeflags);
|
|
|
|
#define lock(f) ((rtm->rtm_rmx.rmx_locks & __CONCAT(RTV_,f)) ? 'L' : ' ')
|
|
#define msec(u) (((u) + 500) / 1000) /* usec to msec */
|
|
|
|
(void) printf("\n%s\n", "\
|
|
recvpipe sendpipe ssthresh rtt,msec rttvar hopcount mtu expire");
|
|
printf("%8ld%c ", rtm->rtm_rmx.rmx_recvpipe, lock(RPIPE));
|
|
printf("%8ld%c ", rtm->rtm_rmx.rmx_sendpipe, lock(SPIPE));
|
|
printf("%8ld%c ", rtm->rtm_rmx.rmx_ssthresh, lock(SSTHRESH));
|
|
printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rtt), lock(RTT));
|
|
printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rttvar), lock(RTTVAR));
|
|
printf("%8ld%c ", rtm->rtm_rmx.rmx_hopcount, lock(HOPCOUNT));
|
|
printf("%8ld%c ", rtm->rtm_rmx.rmx_mtu, lock(MTU));
|
|
if (rtm->rtm_rmx.rmx_expire)
|
|
rtm->rtm_rmx.rmx_expire -= time(0);
|
|
printf("%8ld%c\n", rtm->rtm_rmx.rmx_expire, lock(EXPIRE));
|
|
#undef lock
|
|
#undef msec
|
|
#define RTA_IGN (RTA_DST|RTA_GATEWAY|RTA_NETMASK|RTA_IFP|RTA_IFA|RTA_BRD)
|
|
if (verbose)
|
|
pmsg_common(rtm);
|
|
else if (rtm->rtm_addrs &~ RTA_IGN) {
|
|
(void) printf("sockaddrs: ");
|
|
bprintf(stdout, rtm->rtm_addrs, addrnames);
|
|
putchar('\n');
|
|
}
|
|
#undef RTA_IGN
|
|
}
|
|
|
|
void
|
|
pmsg_common(rtm)
|
|
register struct rt_msghdr *rtm;
|
|
{
|
|
(void) printf("\nlocks: ");
|
|
bprintf(stdout, rtm->rtm_rmx.rmx_locks, metricnames);
|
|
(void) printf(" inits: ");
|
|
bprintf(stdout, rtm->rtm_inits, metricnames);
|
|
pmsg_addrs(((char *)(rtm + 1)), rtm->rtm_addrs);
|
|
}
|
|
|
|
void
|
|
pmsg_addrs(cp, addrs)
|
|
char *cp;
|
|
int addrs;
|
|
{
|
|
register struct sockaddr *sa;
|
|
int i;
|
|
|
|
if (addrs == 0)
|
|
return;
|
|
(void) printf("\nsockaddrs: ");
|
|
bprintf(stdout, addrs, addrnames);
|
|
(void) putchar('\n');
|
|
for (i = 1; i; i <<= 1)
|
|
if (i & addrs) {
|
|
sa = (struct sockaddr *)cp;
|
|
(void) printf(" %s", routename(sa));
|
|
ADVANCE(cp, sa);
|
|
}
|
|
(void) putchar('\n');
|
|
(void) fflush(stdout);
|
|
}
|
|
|
|
void
|
|
bprintf(fp, b, s)
|
|
register FILE *fp;
|
|
register int b;
|
|
register u_char *s;
|
|
{
|
|
register int i;
|
|
int gotsome = 0;
|
|
|
|
if (b == 0)
|
|
return;
|
|
while ((i = *s++) != 0) {
|
|
if (b & (1 << (i-1))) {
|
|
if (gotsome == 0)
|
|
i = '<';
|
|
else
|
|
i = ',';
|
|
(void) putc(i, fp);
|
|
gotsome = 1;
|
|
for (; (i = *s) > 32; s++)
|
|
(void) putc(i, fp);
|
|
} else
|
|
while (*s > 32)
|
|
s++;
|
|
}
|
|
if (gotsome)
|
|
(void) putc('>', fp);
|
|
}
|
|
|
|
int
|
|
keyword(cp)
|
|
char *cp;
|
|
{
|
|
register struct keytab *kt = keywords;
|
|
|
|
while (kt->kt_cp && strcmp(kt->kt_cp, cp))
|
|
kt++;
|
|
return kt->kt_i;
|
|
}
|
|
|
|
void
|
|
sodump(su, which)
|
|
register sup su;
|
|
char *which;
|
|
{
|
|
switch (su->sa.sa_family) {
|
|
case AF_LINK:
|
|
(void) printf("%s: link %s; ",
|
|
which, link_ntoa(&su->sdl));
|
|
break;
|
|
case AF_INET:
|
|
(void) printf("%s: inet %s; ",
|
|
which, inet_ntoa(su->sin.sin_addr));
|
|
break;
|
|
case AF_APPLETALK:
|
|
(void) printf("%s: atalk %s; ",
|
|
which, atalk_ntoa(su->sat.sat_addr));
|
|
break;
|
|
#ifdef NS
|
|
case AF_NS:
|
|
(void) printf("%s: xns %s; ",
|
|
which, ns_ntoa(su->sns.sns_addr));
|
|
break;
|
|
#endif
|
|
}
|
|
(void) fflush(stdout);
|
|
}
|
|
|
|
/* States*/
|
|
#define VIRGIN 0
|
|
#define GOTONE 1
|
|
#define GOTTWO 2
|
|
/* Inputs */
|
|
#define DIGIT (4*0)
|
|
#define END (4*1)
|
|
#define DELIM (4*2)
|
|
|
|
void
|
|
sockaddr(addr, sa)
|
|
register char *addr;
|
|
register struct sockaddr *sa;
|
|
{
|
|
register char *cp = (char *)sa;
|
|
int size = sa->sa_len;
|
|
char *cplim = cp + size;
|
|
register int byte = 0, state = VIRGIN, new = 0 /* foil gcc */;
|
|
|
|
bzero(cp, size);
|
|
cp++;
|
|
do {
|
|
if ((*addr >= '0') && (*addr <= '9')) {
|
|
new = *addr - '0';
|
|
} else if ((*addr >= 'a') && (*addr <= 'f')) {
|
|
new = *addr - 'a' + 10;
|
|
} else if ((*addr >= 'A') && (*addr <= 'F')) {
|
|
new = *addr - 'A' + 10;
|
|
} else if (*addr == 0)
|
|
state |= END;
|
|
else
|
|
state |= DELIM;
|
|
addr++;
|
|
switch (state /* | INPUT */) {
|
|
case GOTTWO | DIGIT:
|
|
*cp++ = byte; /*FALLTHROUGH*/
|
|
case VIRGIN | DIGIT:
|
|
state = GOTONE; byte = new; continue;
|
|
case GOTONE | DIGIT:
|
|
state = GOTTWO; byte = new + (byte << 4); continue;
|
|
default: /* | DELIM */
|
|
state = VIRGIN; *cp++ = byte; byte = 0; continue;
|
|
case GOTONE | END:
|
|
case GOTTWO | END:
|
|
*cp++ = byte; /* FALLTHROUGH */
|
|
case VIRGIN | END:
|
|
break;
|
|
}
|
|
break;
|
|
} while (cp < cplim);
|
|
sa->sa_len = cp - (char *)sa;
|
|
}
|
|
|
|
int
|
|
atalk_aton(const char *text, struct at_addr *addr)
|
|
{
|
|
u_int net, node;
|
|
|
|
if (sscanf(text, "%u.%u", &net, &node) != 2
|
|
|| net > 0xffff || node > 0xff)
|
|
return(0);
|
|
addr->s_net = htons(net);
|
|
addr->s_node = node;
|
|
return(1);
|
|
}
|
|
|
|
char *
|
|
atalk_ntoa(struct at_addr at)
|
|
{
|
|
static char buf[20];
|
|
|
|
(void) snprintf(buf, sizeof(buf), "%u.%u", ntohs(at.s_net), at.s_node);
|
|
return(buf);
|
|
}
|