xref: /illumos-gate/usr/src/lib/libresolv/res_comp.c (revision 7257d1b4)
17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * CDDL HEADER START
37c478bd9Sstevel@tonic-gate  *
47c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7257d1b4Sraf  * Common Development and Distribution License (the "License").
6*7257d1b4Sraf  * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate  *
87c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate  * and limitations under the License.
127c478bd9Sstevel@tonic-gate  *
137c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate  *
197c478bd9Sstevel@tonic-gate  * CDDL HEADER END
207c478bd9Sstevel@tonic-gate  */
21e8031f0aSraf 
227c478bd9Sstevel@tonic-gate /*
23*7257d1b4Sraf  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
247c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate  */
267c478bd9Sstevel@tonic-gate 
277c478bd9Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
287c478bd9Sstevel@tonic-gate /*	  All Rights Reserved  	*/
297c478bd9Sstevel@tonic-gate 
307c478bd9Sstevel@tonic-gate /*
317c478bd9Sstevel@tonic-gate  * University Copyright- Copyright (c) 1982, 1986, 1988
327c478bd9Sstevel@tonic-gate  * The Regents of the University of California
337c478bd9Sstevel@tonic-gate  * All Rights Reserved
347c478bd9Sstevel@tonic-gate  *
357c478bd9Sstevel@tonic-gate  * University Acknowledgment- Portions of this document are derived from
367c478bd9Sstevel@tonic-gate  * software developed by the University of California, Berkeley, and its
377c478bd9Sstevel@tonic-gate  * contributors.
387c478bd9Sstevel@tonic-gate  */
397c478bd9Sstevel@tonic-gate 
407c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
417c478bd9Sstevel@tonic-gate 
427c478bd9Sstevel@tonic-gate #include <sys/types.h>
437c478bd9Sstevel@tonic-gate #include <stdio.h>
447c478bd9Sstevel@tonic-gate #include <arpa/nameser.h>
457c478bd9Sstevel@tonic-gate 
466a1c6faaSanay static int dn_find(u_char *exp_dn, u_char *msg, u_char **dnptrs,
476a1c6faaSanay 	u_char **lastdnptr);
487c478bd9Sstevel@tonic-gate 
497c478bd9Sstevel@tonic-gate 
507c478bd9Sstevel@tonic-gate /*
517c478bd9Sstevel@tonic-gate  * Expand compressed domain name 'comp_dn' to full domain name.
527c478bd9Sstevel@tonic-gate  * 'msg' is a pointer to the begining of the message,
537c478bd9Sstevel@tonic-gate  * 'eomorig' points to the first location after the message,
547c478bd9Sstevel@tonic-gate  * 'exp_dn' is a pointer to a buffer of size 'length' for the result.
557c478bd9Sstevel@tonic-gate  * Return size of compressed name or -1 if there was an error.
567c478bd9Sstevel@tonic-gate  */
576a1c6faaSanay int
dn_expand(msg,eomorig,comp_dn,exp_dn,length)587c478bd9Sstevel@tonic-gate dn_expand(msg, eomorig, comp_dn, exp_dn, length)
597c478bd9Sstevel@tonic-gate 	u_char *msg, *eomorig, *comp_dn, *exp_dn;
607c478bd9Sstevel@tonic-gate 	int length;
617c478bd9Sstevel@tonic-gate {
627c478bd9Sstevel@tonic-gate 	register u_char *cp, *dn;
637c478bd9Sstevel@tonic-gate 	register int n, c;
647c478bd9Sstevel@tonic-gate 	u_char *eom;
657c478bd9Sstevel@tonic-gate 	int len = -1, checked = 0;
667c478bd9Sstevel@tonic-gate 
677c478bd9Sstevel@tonic-gate 	dn = exp_dn;
687c478bd9Sstevel@tonic-gate 	cp = comp_dn;
697c478bd9Sstevel@tonic-gate 	eom = exp_dn + length;
707c478bd9Sstevel@tonic-gate 	/*
717c478bd9Sstevel@tonic-gate 	 * fetch next label in domain name
727c478bd9Sstevel@tonic-gate 	 */
737c478bd9Sstevel@tonic-gate 	while (n = *cp++) {
747c478bd9Sstevel@tonic-gate 		/*
757c478bd9Sstevel@tonic-gate 		 * Check for indirection
767c478bd9Sstevel@tonic-gate 		 */
777c478bd9Sstevel@tonic-gate 		switch (n & INDIR_MASK) {
787c478bd9Sstevel@tonic-gate 		case 0:
797c478bd9Sstevel@tonic-gate 			if (dn != exp_dn) {
807c478bd9Sstevel@tonic-gate 				if (dn >= eom)
817c478bd9Sstevel@tonic-gate 					return (-1);
827c478bd9Sstevel@tonic-gate 				*dn++ = '.';
837c478bd9Sstevel@tonic-gate 			}
847c478bd9Sstevel@tonic-gate 			if (dn+n >= eom)
857c478bd9Sstevel@tonic-gate 				return (-1);
867c478bd9Sstevel@tonic-gate 			checked += n + 1;
877c478bd9Sstevel@tonic-gate 			while (--n >= 0) {
887c478bd9Sstevel@tonic-gate 				if ((c = *cp++) == '.') {
897c478bd9Sstevel@tonic-gate 					if (dn + n + 2 >= eom)
907c478bd9Sstevel@tonic-gate 						return (-1);
917c478bd9Sstevel@tonic-gate 					*dn++ = '\\';
927c478bd9Sstevel@tonic-gate 				}
937c478bd9Sstevel@tonic-gate 				*dn++ = c;
947c478bd9Sstevel@tonic-gate 				if (cp >= eomorig)	/* out of range */
957c478bd9Sstevel@tonic-gate 					return (-1);
967c478bd9Sstevel@tonic-gate 			}
977c478bd9Sstevel@tonic-gate 			break;
987c478bd9Sstevel@tonic-gate 
997c478bd9Sstevel@tonic-gate 		case INDIR_MASK:
1007c478bd9Sstevel@tonic-gate 			if (len < 0)
1017c478bd9Sstevel@tonic-gate 				len = cp - comp_dn + 1;
1027c478bd9Sstevel@tonic-gate 			cp = msg + (((n & 0x3f) << 8) | (*cp & 0xff));
1037c478bd9Sstevel@tonic-gate 			if (cp < msg || cp >= eomorig)	/* out of range */
1047c478bd9Sstevel@tonic-gate 				return (-1);
1057c478bd9Sstevel@tonic-gate 			checked += 2;
1067c478bd9Sstevel@tonic-gate 			/*
1077c478bd9Sstevel@tonic-gate 			 * Check for loops in the compressed name;
1087c478bd9Sstevel@tonic-gate 			 * if we've looked at the whole message,
1097c478bd9Sstevel@tonic-gate 			 * there must be a loop.
1107c478bd9Sstevel@tonic-gate 			 */
1117c478bd9Sstevel@tonic-gate 			if (checked >= eomorig - msg)
1127c478bd9Sstevel@tonic-gate 				return (-1);
1137c478bd9Sstevel@tonic-gate 			break;
1147c478bd9Sstevel@tonic-gate 
1157c478bd9Sstevel@tonic-gate 		default:
1167c478bd9Sstevel@tonic-gate 			return (-1);			/* flag error */
1177c478bd9Sstevel@tonic-gate 		}
1187c478bd9Sstevel@tonic-gate 	}
1197c478bd9Sstevel@tonic-gate 	*dn = '\0';
1207c478bd9Sstevel@tonic-gate 	if (len < 0)
1217c478bd9Sstevel@tonic-gate 		len = cp - comp_dn;
1227c478bd9Sstevel@tonic-gate 	return (len);
1237c478bd9Sstevel@tonic-gate }
1247c478bd9Sstevel@tonic-gate 
1257c478bd9Sstevel@tonic-gate /*
1267c478bd9Sstevel@tonic-gate  * Compress domain name 'exp_dn' into 'comp_dn'.
1277c478bd9Sstevel@tonic-gate  * Return the size of the compressed name or -1.
1287c478bd9Sstevel@tonic-gate  * 'length' is the size of the array pointed to by 'comp_dn'.
1297c478bd9Sstevel@tonic-gate  * 'dnptrs' is a list of pointers to previous compressed names. dnptrs[0]
1307c478bd9Sstevel@tonic-gate  * is a pointer to the beginning of the message. The list ends with NULL.
1317c478bd9Sstevel@tonic-gate  * 'lastdnptr' is a pointer to the end of the arrary pointed to
1327c478bd9Sstevel@tonic-gate  * by 'dnptrs'. Side effect is to update the list of pointers for
1337c478bd9Sstevel@tonic-gate  * labels inserted into the message as we compress the name.
1347c478bd9Sstevel@tonic-gate  * If 'dnptr' is NULL, we don't try to compress names. If 'lastdnptr'
1357c478bd9Sstevel@tonic-gate  * is NULL, we don't update the list.
1367c478bd9Sstevel@tonic-gate  */
1376a1c6faaSanay int
dn_comp(exp_dn,comp_dn,length,dnptrs,lastdnptr)1387c478bd9Sstevel@tonic-gate dn_comp(exp_dn, comp_dn, length, dnptrs, lastdnptr)
1397c478bd9Sstevel@tonic-gate 	u_char *exp_dn, *comp_dn;
1407c478bd9Sstevel@tonic-gate 	int length;
1417c478bd9Sstevel@tonic-gate 	u_char **dnptrs, **lastdnptr;
1427c478bd9Sstevel@tonic-gate {
1437c478bd9Sstevel@tonic-gate 	register u_char *cp, *dn;
1447c478bd9Sstevel@tonic-gate 	register int c, l;
1457c478bd9Sstevel@tonic-gate 	u_char **cpp, **lpp, *sp, *eob;
1467c478bd9Sstevel@tonic-gate 	u_char *msg;
1477c478bd9Sstevel@tonic-gate 
1487c478bd9Sstevel@tonic-gate 	dn = exp_dn;
1497c478bd9Sstevel@tonic-gate 	cp = comp_dn;
1507c478bd9Sstevel@tonic-gate 	eob = cp + length;
1517c478bd9Sstevel@tonic-gate 	if (dnptrs != NULL) {
1527c478bd9Sstevel@tonic-gate 		if ((msg = *dnptrs++) != NULL) {
1537c478bd9Sstevel@tonic-gate 			for (cpp = dnptrs; *cpp != NULL; cpp++)
1547c478bd9Sstevel@tonic-gate 				;
1557c478bd9Sstevel@tonic-gate 			lpp = cpp;	/* end of list to search */
1567c478bd9Sstevel@tonic-gate 		}
1577c478bd9Sstevel@tonic-gate 	} else
1587c478bd9Sstevel@tonic-gate 		msg = NULL;
1597c478bd9Sstevel@tonic-gate 	for (c = *dn++; c != '\0'; /*EMPTY*/) {
1607c478bd9Sstevel@tonic-gate 		/* look to see if we can use pointers */
1617c478bd9Sstevel@tonic-gate 		if (msg != NULL) {
1627c478bd9Sstevel@tonic-gate 			if ((l = dn_find(dn-1, msg, dnptrs, lpp)) >= 0) {
1637c478bd9Sstevel@tonic-gate 				if (cp+1 >= eob)
1647c478bd9Sstevel@tonic-gate 					return (-1);
1657c478bd9Sstevel@tonic-gate 				*cp++ = (l >> 8) | INDIR_MASK;
1667c478bd9Sstevel@tonic-gate 				*cp++ = l % 256;
1677c478bd9Sstevel@tonic-gate 				return (cp - comp_dn);
1687c478bd9Sstevel@tonic-gate 			}
1697c478bd9Sstevel@tonic-gate 			/* not found, save it */
1707c478bd9Sstevel@tonic-gate 			if (lastdnptr != NULL && cpp < lastdnptr-1) {
1717c478bd9Sstevel@tonic-gate 				*cpp++ = cp;
1727c478bd9Sstevel@tonic-gate 				*cpp = NULL;
1737c478bd9Sstevel@tonic-gate 			}
1747c478bd9Sstevel@tonic-gate 		}
1757c478bd9Sstevel@tonic-gate 		sp = cp++;	/* save ptr to length byte */
1767c478bd9Sstevel@tonic-gate 		do {
1777c478bd9Sstevel@tonic-gate 			if (c == '.') {
1787c478bd9Sstevel@tonic-gate 				c = *dn++;
1797c478bd9Sstevel@tonic-gate 				break;
1807c478bd9Sstevel@tonic-gate 			}
1817c478bd9Sstevel@tonic-gate 			if (c == '\\') {
1827c478bd9Sstevel@tonic-gate 				if ((c = *dn++) == '\0')
1837c478bd9Sstevel@tonic-gate 					break;
1847c478bd9Sstevel@tonic-gate 			}
1857c478bd9Sstevel@tonic-gate 			if (cp >= eob) {
1867c478bd9Sstevel@tonic-gate 				if (msg != NULL)
1877c478bd9Sstevel@tonic-gate 					*lpp = NULL;
1887c478bd9Sstevel@tonic-gate 				return (-1);
1897c478bd9Sstevel@tonic-gate 			}
1907c478bd9Sstevel@tonic-gate 			*cp++ = c;
1917c478bd9Sstevel@tonic-gate 		} while ((c = *dn++) != '\0');
1927c478bd9Sstevel@tonic-gate 		/* catch trailing '.'s but not '..' */
1937c478bd9Sstevel@tonic-gate 		if ((l = cp - sp - 1) == 0 && c == '\0') {
1947c478bd9Sstevel@tonic-gate 			cp--;
1957c478bd9Sstevel@tonic-gate 			break;
1967c478bd9Sstevel@tonic-gate 		}
1977c478bd9Sstevel@tonic-gate 		if (l <= 0 || l > MAXLABEL) {
1987c478bd9Sstevel@tonic-gate 			if (msg != NULL)
1997c478bd9Sstevel@tonic-gate 				*lpp = NULL;
2007c478bd9Sstevel@tonic-gate 			return (-1);
2017c478bd9Sstevel@tonic-gate 		}
2027c478bd9Sstevel@tonic-gate 		*sp = l;
2037c478bd9Sstevel@tonic-gate 	}
2047c478bd9Sstevel@tonic-gate 	if (cp >= eob) {
2057c478bd9Sstevel@tonic-gate 		if (msg != NULL)
2067c478bd9Sstevel@tonic-gate 			*lpp = NULL;
2077c478bd9Sstevel@tonic-gate 		return (-1);
2087c478bd9Sstevel@tonic-gate 	}
2097c478bd9Sstevel@tonic-gate 	*cp++ = '\0';
2107c478bd9Sstevel@tonic-gate 	return (cp - comp_dn);
2117c478bd9Sstevel@tonic-gate }
2127c478bd9Sstevel@tonic-gate 
2137c478bd9Sstevel@tonic-gate /*
2147c478bd9Sstevel@tonic-gate  * Skip over a compressed domain name. Return the size or -1.
2157c478bd9Sstevel@tonic-gate  */
2166a1c6faaSanay int
dn_skipname(comp_dn,eom)2177c478bd9Sstevel@tonic-gate dn_skipname(comp_dn, eom)
2187c478bd9Sstevel@tonic-gate 	u_char *comp_dn, *eom;
2197c478bd9Sstevel@tonic-gate {
2207c478bd9Sstevel@tonic-gate 	register u_char *cp;
2217c478bd9Sstevel@tonic-gate 	register int n;
2227c478bd9Sstevel@tonic-gate 
2237c478bd9Sstevel@tonic-gate 	cp = comp_dn;
2247c478bd9Sstevel@tonic-gate 	while (cp < eom && (n = *cp++)) {
2257c478bd9Sstevel@tonic-gate 		/*
2267c478bd9Sstevel@tonic-gate 		 * check for indirection
2277c478bd9Sstevel@tonic-gate 		 */
2287c478bd9Sstevel@tonic-gate 		switch (n & INDIR_MASK) {
2297c478bd9Sstevel@tonic-gate 		case 0:		/* normal case, n == len */
2307c478bd9Sstevel@tonic-gate 			cp += n;
2317c478bd9Sstevel@tonic-gate 			continue;
2327c478bd9Sstevel@tonic-gate 		default:	/* illegal type */
2337c478bd9Sstevel@tonic-gate 			return (-1);
2347c478bd9Sstevel@tonic-gate 		case INDIR_MASK:	/* indirection */
2357c478bd9Sstevel@tonic-gate 			cp++;
2367c478bd9Sstevel@tonic-gate 		}
2377c478bd9Sstevel@tonic-gate 		break;
2387c478bd9Sstevel@tonic-gate 	}
2397c478bd9Sstevel@tonic-gate 	return (cp - comp_dn);
2407c478bd9Sstevel@tonic-gate }
2417c478bd9Sstevel@tonic-gate 
2427c478bd9Sstevel@tonic-gate /*
2437c478bd9Sstevel@tonic-gate  * Search for expanded name from a list of previously compressed names.
2447c478bd9Sstevel@tonic-gate  * Return the offset from msg if found or -1.
2457c478bd9Sstevel@tonic-gate  * dnptrs is the pointer to the first name on the list,
2467c478bd9Sstevel@tonic-gate  * not the pointer to the start of the message.
2477c478bd9Sstevel@tonic-gate  */
2486a1c6faaSanay static int
dn_find(u_char * exp_dn,u_char * msg,u_char ** dnptrs,u_char ** lastdnptr)2496a1c6faaSanay dn_find(u_char *exp_dn, u_char *msg, u_char **dnptrs, u_char **lastdnptr)
2507c478bd9Sstevel@tonic-gate {
2517c478bd9Sstevel@tonic-gate 	register u_char *dn, *cp, **cpp;
2527c478bd9Sstevel@tonic-gate 	register int n;
2537c478bd9Sstevel@tonic-gate 	u_char *sp;
2547c478bd9Sstevel@tonic-gate 
2557c478bd9Sstevel@tonic-gate 	for (cpp = dnptrs; cpp < lastdnptr; cpp++) {
2567c478bd9Sstevel@tonic-gate 		dn = exp_dn;
2577c478bd9Sstevel@tonic-gate 		sp = cp = *cpp;
2587c478bd9Sstevel@tonic-gate 		while (n = *cp++) {
2597c478bd9Sstevel@tonic-gate 			/*
2607c478bd9Sstevel@tonic-gate 			 * check for indirection
2617c478bd9Sstevel@tonic-gate 			 */
2627c478bd9Sstevel@tonic-gate 			switch (n & INDIR_MASK) {
2637c478bd9Sstevel@tonic-gate 			case 0:		/* normal case, n == len */
2647c478bd9Sstevel@tonic-gate 				while (--n >= 0) {
2657c478bd9Sstevel@tonic-gate 					if (*dn == '.')
2667c478bd9Sstevel@tonic-gate 						goto next;
2677c478bd9Sstevel@tonic-gate 					if (*dn == '\\')
2687c478bd9Sstevel@tonic-gate 						dn++;
2697c478bd9Sstevel@tonic-gate 					if (*dn++ != *cp++)
2707c478bd9Sstevel@tonic-gate 						goto next;
2717c478bd9Sstevel@tonic-gate 				}
2727c478bd9Sstevel@tonic-gate 				if ((n = *dn++) == '\0' && *cp == '\0')
2737c478bd9Sstevel@tonic-gate 					return (sp - msg);
2747c478bd9Sstevel@tonic-gate 				if (n == '.')
2757c478bd9Sstevel@tonic-gate 					continue;
2767c478bd9Sstevel@tonic-gate 				goto next;
2777c478bd9Sstevel@tonic-gate 
2787c478bd9Sstevel@tonic-gate 			default:	/* illegal type */
2797c478bd9Sstevel@tonic-gate 				return (-1);
2807c478bd9Sstevel@tonic-gate 
2817c478bd9Sstevel@tonic-gate 			case INDIR_MASK:	/* indirection */
2827c478bd9Sstevel@tonic-gate 				cp = msg + (((n & 0x3f) << 8) | *cp);
2837c478bd9Sstevel@tonic-gate 			}
2847c478bd9Sstevel@tonic-gate 		}
2857c478bd9Sstevel@tonic-gate 		if (*dn == '\0')
2867c478bd9Sstevel@tonic-gate 			return (sp - msg);
2877c478bd9Sstevel@tonic-gate 	next:	/*EMPTY*/;
2887c478bd9Sstevel@tonic-gate 	}
2897c478bd9Sstevel@tonic-gate 	return (-1);
2907c478bd9Sstevel@tonic-gate }
2917c478bd9Sstevel@tonic-gate 
2927c478bd9Sstevel@tonic-gate /*
2937c478bd9Sstevel@tonic-gate  * Routines to insert/extract short/long's. Must account for byte
2947c478bd9Sstevel@tonic-gate  * order and non-alignment problems. This code at least has the
2957c478bd9Sstevel@tonic-gate  * advantage of being portable.
2967c478bd9Sstevel@tonic-gate  *
2977c478bd9Sstevel@tonic-gate  * used by sendmail.
2987c478bd9Sstevel@tonic-gate  */
2997c478bd9Sstevel@tonic-gate 
3007c478bd9Sstevel@tonic-gate u_short
_getshort(msgp)3017c478bd9Sstevel@tonic-gate _getshort(msgp)
3027c478bd9Sstevel@tonic-gate 	u_char *msgp;
3037c478bd9Sstevel@tonic-gate {
3047c478bd9Sstevel@tonic-gate 	register u_char *p = (u_char *) msgp;
3057c478bd9Sstevel@tonic-gate #ifdef vax
3067c478bd9Sstevel@tonic-gate 	/*
3077c478bd9Sstevel@tonic-gate 	 * vax compiler doesn't put shorts in registers
3087c478bd9Sstevel@tonic-gate 	 */
3097c478bd9Sstevel@tonic-gate 	register u_long u;
3107c478bd9Sstevel@tonic-gate #else
3117c478bd9Sstevel@tonic-gate 	register u_short u;
3127c478bd9Sstevel@tonic-gate #endif
3137c478bd9Sstevel@tonic-gate 
3147c478bd9Sstevel@tonic-gate 	u = *p++ << 8;
3157c478bd9Sstevel@tonic-gate 	return ((u_short)(u | *p));
3167c478bd9Sstevel@tonic-gate }
3177c478bd9Sstevel@tonic-gate 
3187c478bd9Sstevel@tonic-gate u_long
_getlong(msgp)3197c478bd9Sstevel@tonic-gate _getlong(msgp)
3207c478bd9Sstevel@tonic-gate 	u_char *msgp;
3217c478bd9Sstevel@tonic-gate {
3227c478bd9Sstevel@tonic-gate 	register u_char *p = (u_char *) msgp;
3237c478bd9Sstevel@tonic-gate 	register u_long u;
3247c478bd9Sstevel@tonic-gate 
3257c478bd9Sstevel@tonic-gate 	u = *p++; u <<= 8;
3267c478bd9Sstevel@tonic-gate 	u |= *p++; u <<= 8;
3277c478bd9Sstevel@tonic-gate 	u |= *p++; u <<= 8;
3287c478bd9Sstevel@tonic-gate 	return (u | *p);
3297c478bd9Sstevel@tonic-gate }
3307c478bd9Sstevel@tonic-gate 
3316a1c6faaSanay void
putshort(s,msgp)3327c478bd9Sstevel@tonic-gate putshort(s, msgp)
3337c478bd9Sstevel@tonic-gate 	register u_short s;
3347c478bd9Sstevel@tonic-gate 	register u_char *msgp;
3357c478bd9Sstevel@tonic-gate {
3367c478bd9Sstevel@tonic-gate 
3377c478bd9Sstevel@tonic-gate 	msgp[1] = s;
3387c478bd9Sstevel@tonic-gate 	msgp[0] = s >> 8;
3397c478bd9Sstevel@tonic-gate }
3407c478bd9Sstevel@tonic-gate 
3416a1c6faaSanay void
putlong(l,msgp)3427c478bd9Sstevel@tonic-gate putlong(l, msgp)
3437c478bd9Sstevel@tonic-gate 	register u_long l;
3447c478bd9Sstevel@tonic-gate 	register u_char *msgp;
3457c478bd9Sstevel@tonic-gate {
3467c478bd9Sstevel@tonic-gate 
3477c478bd9Sstevel@tonic-gate 	msgp[3] = l;
3487c478bd9Sstevel@tonic-gate 	msgp[2] = (l >>= 8);
3497c478bd9Sstevel@tonic-gate 	msgp[1] = (l >>= 8);
3507c478bd9Sstevel@tonic-gate 	msgp[0] = l >> 8;
3517c478bd9Sstevel@tonic-gate }
352