1f62c4786SHajimu UMEMOTO /* 2f62c4786SHajimu UMEMOTO * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") 3f62c4786SHajimu UMEMOTO * Copyright (c) 1996-1999 by Internet Software Consortium. 4f62c4786SHajimu UMEMOTO * 5f62c4786SHajimu UMEMOTO * Permission to use, copy, modify, and distribute this software for any 6f62c4786SHajimu UMEMOTO * purpose with or without fee is hereby granted, provided that the above 7f62c4786SHajimu UMEMOTO * copyright notice and this permission notice appear in all copies. 8f62c4786SHajimu UMEMOTO * 9f62c4786SHajimu UMEMOTO * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES 10f62c4786SHajimu UMEMOTO * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11f62c4786SHajimu UMEMOTO * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR 12f62c4786SHajimu UMEMOTO * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13f62c4786SHajimu UMEMOTO * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14f62c4786SHajimu UMEMOTO * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 15f62c4786SHajimu UMEMOTO * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16f62c4786SHajimu UMEMOTO */ 17f62c4786SHajimu UMEMOTO 18dde4a85dSHajimu UMEMOTO /*! \file 19dde4a85dSHajimu UMEMOTO * \brief 20f62c4786SHajimu UMEMOTO * Based on the Dynamic DNS reference implementation by Viraj Bais 21dde4a85dSHajimu UMEMOTO * <viraj_bais@ccm.fm.intel.com> 22f62c4786SHajimu UMEMOTO */ 23f62c4786SHajimu UMEMOTO 24f62c4786SHajimu UMEMOTO #if !defined(lint) && !defined(SABER) 25046c3635SPedro F. Giffuni static const char rcsid[] = "$Id: res_mkupdate.c,v 1.10 2008/12/11 09:59:00 marka Exp $"; 26f62c4786SHajimu UMEMOTO #endif /* not lint */ 27d808369aSHajimu UMEMOTO #include <sys/cdefs.h> 28d808369aSHajimu UMEMOTO __FBSDID("$FreeBSD$"); 29f62c4786SHajimu UMEMOTO 30f62c4786SHajimu UMEMOTO #include "port_before.h" 31f62c4786SHajimu UMEMOTO 32f62c4786SHajimu UMEMOTO #include <sys/types.h> 33f62c4786SHajimu UMEMOTO #include <sys/param.h> 34f62c4786SHajimu UMEMOTO 35f62c4786SHajimu UMEMOTO #include <netinet/in.h> 36f62c4786SHajimu UMEMOTO #include <arpa/nameser.h> 37f62c4786SHajimu UMEMOTO #include <arpa/inet.h> 38f62c4786SHajimu UMEMOTO 39f62c4786SHajimu UMEMOTO #include <errno.h> 40f62c4786SHajimu UMEMOTO #include <limits.h> 41f62c4786SHajimu UMEMOTO #include <netdb.h> 42f62c4786SHajimu UMEMOTO #include <resolv.h> 43f62c4786SHajimu UMEMOTO #include <res_update.h> 44f62c4786SHajimu UMEMOTO #include <stdio.h> 45f62c4786SHajimu UMEMOTO #include <stdlib.h> 46f62c4786SHajimu UMEMOTO #include <string.h> 47f62c4786SHajimu UMEMOTO #include <unistd.h> 48f62c4786SHajimu UMEMOTO #include <ctype.h> 49f62c4786SHajimu UMEMOTO 50d808369aSHajimu UMEMOTO #ifdef _LIBC 51d808369aSHajimu UMEMOTO #include <isc/list.h> 52d808369aSHajimu UMEMOTO #endif 53d808369aSHajimu UMEMOTO 54f62c4786SHajimu UMEMOTO #include "port_after.h" 55f62c4786SHajimu UMEMOTO 56f62c4786SHajimu UMEMOTO /* Options. Leave them on. */ 57f62c4786SHajimu UMEMOTO #define DEBUG 58f62c4786SHajimu UMEMOTO #define MAXPORT 1024 59f62c4786SHajimu UMEMOTO 60f62c4786SHajimu UMEMOTO static int getnum_str(u_char **, u_char *); 61f62c4786SHajimu UMEMOTO static int gethexnum_str(u_char **, u_char *); 62f62c4786SHajimu UMEMOTO static int getword_str(char *, int, u_char **, u_char *); 63f62c4786SHajimu UMEMOTO static int getstr_str(char *, int, u_char **, u_char *); 64f62c4786SHajimu UMEMOTO 65f62c4786SHajimu UMEMOTO #define ShrinkBuffer(x) if ((buflen -= x) < 0) return (-2); 66f62c4786SHajimu UMEMOTO 67f62c4786SHajimu UMEMOTO /* Forward. */ 68f62c4786SHajimu UMEMOTO 69d808369aSHajimu UMEMOTO #ifdef _LIBC 70d808369aSHajimu UMEMOTO static 71d808369aSHajimu UMEMOTO #endif 72f62c4786SHajimu UMEMOTO int res_protocolnumber(const char *); 73d808369aSHajimu UMEMOTO #ifdef _LIBC 74d808369aSHajimu UMEMOTO static 75d808369aSHajimu UMEMOTO #endif 76f62c4786SHajimu UMEMOTO int res_servicenumber(const char *); 77f62c4786SHajimu UMEMOTO 78dde4a85dSHajimu UMEMOTO /*% 79f62c4786SHajimu UMEMOTO * Form update packets. 80f62c4786SHajimu UMEMOTO * Returns the size of the resulting packet if no error 81dde4a85dSHajimu UMEMOTO * 82f62c4786SHajimu UMEMOTO * On error, 83dde4a85dSHajimu UMEMOTO * returns 84dde4a85dSHajimu UMEMOTO *\li -1 if error in reading a word/number in rdata 85f62c4786SHajimu UMEMOTO * portion for update packets 86dde4a85dSHajimu UMEMOTO *\li -2 if length of buffer passed is insufficient 87dde4a85dSHajimu UMEMOTO *\li -3 if zone section is not the first section in 88f62c4786SHajimu UMEMOTO * the linked list, or section order has a problem 89dde4a85dSHajimu UMEMOTO *\li -4 on a number overflow 90dde4a85dSHajimu UMEMOTO *\li -5 unknown operation or no records 91f62c4786SHajimu UMEMOTO */ 92f62c4786SHajimu UMEMOTO int 93f62c4786SHajimu UMEMOTO res_nmkupdate(res_state statp, ns_updrec *rrecp_in, u_char *buf, int buflen) { 94f62c4786SHajimu UMEMOTO ns_updrec *rrecp_start = rrecp_in; 95f62c4786SHajimu UMEMOTO HEADER *hp; 96f62c4786SHajimu UMEMOTO u_char *cp, *sp2, *startp, *endp; 97f62c4786SHajimu UMEMOTO int n, i, soanum, multiline; 98f62c4786SHajimu UMEMOTO ns_updrec *rrecp; 99f62c4786SHajimu UMEMOTO struct in_addr ina; 100f62c4786SHajimu UMEMOTO struct in6_addr in6a; 101f62c4786SHajimu UMEMOTO char buf2[MAXDNAME]; 102f62c4786SHajimu UMEMOTO u_char buf3[MAXDNAME]; 103f62c4786SHajimu UMEMOTO int section, numrrs = 0, counts[ns_s_max]; 104f62c4786SHajimu UMEMOTO u_int16_t rtype, rclass; 105f62c4786SHajimu UMEMOTO u_int32_t n1, rttl; 106f62c4786SHajimu UMEMOTO u_char *dnptrs[20], **dpp, **lastdnptr; 107d808369aSHajimu UMEMOTO #ifndef _LIBC 108d808369aSHajimu UMEMOTO int siglen; 109d808369aSHajimu UMEMOTO #endif 110d808369aSHajimu UMEMOTO int keylen, certlen; 111f62c4786SHajimu UMEMOTO 112f62c4786SHajimu UMEMOTO /* 113f62c4786SHajimu UMEMOTO * Initialize header fields. 114f62c4786SHajimu UMEMOTO */ 115f62c4786SHajimu UMEMOTO if ((buf == NULL) || (buflen < HFIXEDSZ)) 116f62c4786SHajimu UMEMOTO return (-1); 117f62c4786SHajimu UMEMOTO memset(buf, 0, HFIXEDSZ); 118f62c4786SHajimu UMEMOTO hp = (HEADER *) buf; 119046c3635SPedro F. Giffuni statp->id = res_nrandomid(statp); 120046c3635SPedro F. Giffuni hp->id = htons(statp->id); 121f62c4786SHajimu UMEMOTO hp->opcode = ns_o_update; 122f62c4786SHajimu UMEMOTO hp->rcode = NOERROR; 123f62c4786SHajimu UMEMOTO cp = buf + HFIXEDSZ; 124f62c4786SHajimu UMEMOTO buflen -= HFIXEDSZ; 125f62c4786SHajimu UMEMOTO dpp = dnptrs; 126f62c4786SHajimu UMEMOTO *dpp++ = buf; 127f62c4786SHajimu UMEMOTO *dpp++ = NULL; 128f62c4786SHajimu UMEMOTO lastdnptr = dnptrs + sizeof dnptrs / sizeof dnptrs[0]; 129f62c4786SHajimu UMEMOTO 130f62c4786SHajimu UMEMOTO if (rrecp_start == NULL) 131f62c4786SHajimu UMEMOTO return (-5); 132f62c4786SHajimu UMEMOTO else if (rrecp_start->r_section != S_ZONE) 133f62c4786SHajimu UMEMOTO return (-3); 134f62c4786SHajimu UMEMOTO 135f62c4786SHajimu UMEMOTO memset(counts, 0, sizeof counts); 136f62c4786SHajimu UMEMOTO for (rrecp = rrecp_start; rrecp; rrecp = NEXT(rrecp, r_glink)) { 137f62c4786SHajimu UMEMOTO numrrs++; 138f62c4786SHajimu UMEMOTO section = rrecp->r_section; 139f62c4786SHajimu UMEMOTO if (section < 0 || section >= ns_s_max) 140f62c4786SHajimu UMEMOTO return (-1); 141f62c4786SHajimu UMEMOTO counts[section]++; 142f62c4786SHajimu UMEMOTO for (i = section + 1; i < ns_s_max; i++) 143f62c4786SHajimu UMEMOTO if (counts[i]) 144f62c4786SHajimu UMEMOTO return (-3); 145f62c4786SHajimu UMEMOTO rtype = rrecp->r_type; 146f62c4786SHajimu UMEMOTO rclass = rrecp->r_class; 147f62c4786SHajimu UMEMOTO rttl = rrecp->r_ttl; 148f62c4786SHajimu UMEMOTO /* overload class and type */ 149f62c4786SHajimu UMEMOTO if (section == S_PREREQ) { 150f62c4786SHajimu UMEMOTO rttl = 0; 151f62c4786SHajimu UMEMOTO switch (rrecp->r_opcode) { 152f62c4786SHajimu UMEMOTO case YXDOMAIN: 153f62c4786SHajimu UMEMOTO rclass = C_ANY; 154f62c4786SHajimu UMEMOTO rtype = T_ANY; 155f62c4786SHajimu UMEMOTO rrecp->r_size = 0; 156f62c4786SHajimu UMEMOTO break; 157f62c4786SHajimu UMEMOTO case NXDOMAIN: 158f62c4786SHajimu UMEMOTO rclass = C_NONE; 159f62c4786SHajimu UMEMOTO rtype = T_ANY; 160f62c4786SHajimu UMEMOTO rrecp->r_size = 0; 161f62c4786SHajimu UMEMOTO break; 162f62c4786SHajimu UMEMOTO case NXRRSET: 163f62c4786SHajimu UMEMOTO rclass = C_NONE; 164f62c4786SHajimu UMEMOTO rrecp->r_size = 0; 165f62c4786SHajimu UMEMOTO break; 166f62c4786SHajimu UMEMOTO case YXRRSET: 167f62c4786SHajimu UMEMOTO if (rrecp->r_size == 0) 168f62c4786SHajimu UMEMOTO rclass = C_ANY; 169f62c4786SHajimu UMEMOTO break; 170f62c4786SHajimu UMEMOTO default: 171f62c4786SHajimu UMEMOTO fprintf(stderr, 172f62c4786SHajimu UMEMOTO "res_mkupdate: incorrect opcode: %d\n", 173f62c4786SHajimu UMEMOTO rrecp->r_opcode); 174f62c4786SHajimu UMEMOTO fflush(stderr); 175f62c4786SHajimu UMEMOTO return (-1); 176f62c4786SHajimu UMEMOTO } 177f62c4786SHajimu UMEMOTO } else if (section == S_UPDATE) { 178f62c4786SHajimu UMEMOTO switch (rrecp->r_opcode) { 179f62c4786SHajimu UMEMOTO case DELETE: 180f62c4786SHajimu UMEMOTO rclass = rrecp->r_size == 0 ? C_ANY : C_NONE; 181f62c4786SHajimu UMEMOTO break; 182f62c4786SHajimu UMEMOTO case ADD: 183f62c4786SHajimu UMEMOTO break; 184f62c4786SHajimu UMEMOTO default: 185f62c4786SHajimu UMEMOTO fprintf(stderr, 186f62c4786SHajimu UMEMOTO "res_mkupdate: incorrect opcode: %d\n", 187f62c4786SHajimu UMEMOTO rrecp->r_opcode); 188f62c4786SHajimu UMEMOTO fflush(stderr); 189f62c4786SHajimu UMEMOTO return (-1); 190f62c4786SHajimu UMEMOTO } 191f62c4786SHajimu UMEMOTO } 192f62c4786SHajimu UMEMOTO 193f62c4786SHajimu UMEMOTO /* 194f62c4786SHajimu UMEMOTO * XXX appending default domain to owner name is omitted, 195f62c4786SHajimu UMEMOTO * fqdn must be provided 196f62c4786SHajimu UMEMOTO */ 197f62c4786SHajimu UMEMOTO if ((n = dn_comp(rrecp->r_dname, cp, buflen, dnptrs, 198f62c4786SHajimu UMEMOTO lastdnptr)) < 0) 199f62c4786SHajimu UMEMOTO return (-1); 200f62c4786SHajimu UMEMOTO cp += n; 201f62c4786SHajimu UMEMOTO ShrinkBuffer(n + 2*INT16SZ); 202f62c4786SHajimu UMEMOTO PUTSHORT(rtype, cp); 203f62c4786SHajimu UMEMOTO PUTSHORT(rclass, cp); 204f62c4786SHajimu UMEMOTO if (section == S_ZONE) { 205f62c4786SHajimu UMEMOTO if (numrrs != 1 || rrecp->r_type != T_SOA) 206f62c4786SHajimu UMEMOTO return (-3); 207f62c4786SHajimu UMEMOTO continue; 208f62c4786SHajimu UMEMOTO } 209f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ + INT16SZ); 210f62c4786SHajimu UMEMOTO PUTLONG(rttl, cp); 211dde4a85dSHajimu UMEMOTO sp2 = cp; /*%< save pointer to length byte */ 212f62c4786SHajimu UMEMOTO cp += INT16SZ; 213f62c4786SHajimu UMEMOTO if (rrecp->r_size == 0) { 214f62c4786SHajimu UMEMOTO if (section == S_UPDATE && rclass != C_ANY) 215f62c4786SHajimu UMEMOTO return (-1); 216f62c4786SHajimu UMEMOTO else { 217f62c4786SHajimu UMEMOTO PUTSHORT(0, sp2); 218f62c4786SHajimu UMEMOTO continue; 219f62c4786SHajimu UMEMOTO } 220f62c4786SHajimu UMEMOTO } 221f62c4786SHajimu UMEMOTO startp = rrecp->r_data; 222f62c4786SHajimu UMEMOTO endp = startp + rrecp->r_size - 1; 223f62c4786SHajimu UMEMOTO /* XXX this should be done centrally. */ 224f62c4786SHajimu UMEMOTO switch (rrecp->r_type) { 225f62c4786SHajimu UMEMOTO case T_A: 226f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 227f62c4786SHajimu UMEMOTO return (-1); 228f62c4786SHajimu UMEMOTO if (!inet_aton(buf2, &ina)) 229f62c4786SHajimu UMEMOTO return (-1); 230f62c4786SHajimu UMEMOTO n1 = ntohl(ina.s_addr); 231f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 232f62c4786SHajimu UMEMOTO PUTLONG(n1, cp); 233f62c4786SHajimu UMEMOTO break; 234f62c4786SHajimu UMEMOTO case T_CNAME: 235f62c4786SHajimu UMEMOTO case T_MB: 236f62c4786SHajimu UMEMOTO case T_MG: 237f62c4786SHajimu UMEMOTO case T_MR: 238f62c4786SHajimu UMEMOTO case T_NS: 239f62c4786SHajimu UMEMOTO case T_PTR: 240f62c4786SHajimu UMEMOTO case ns_t_dname: 241f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 242f62c4786SHajimu UMEMOTO return (-1); 243f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, dnptrs, lastdnptr); 244f62c4786SHajimu UMEMOTO if (n < 0) 245f62c4786SHajimu UMEMOTO return (-1); 246f62c4786SHajimu UMEMOTO cp += n; 247f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 248f62c4786SHajimu UMEMOTO break; 249f62c4786SHajimu UMEMOTO case T_MINFO: 250f62c4786SHajimu UMEMOTO case T_SOA: 251f62c4786SHajimu UMEMOTO case T_RP: 252f62c4786SHajimu UMEMOTO for (i = 0; i < 2; i++) { 253f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, 254f62c4786SHajimu UMEMOTO endp)) 255f62c4786SHajimu UMEMOTO return (-1); 256f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, 257f62c4786SHajimu UMEMOTO dnptrs, lastdnptr); 258f62c4786SHajimu UMEMOTO if (n < 0) 259f62c4786SHajimu UMEMOTO return (-1); 260f62c4786SHajimu UMEMOTO cp += n; 261f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 262f62c4786SHajimu UMEMOTO } 263f62c4786SHajimu UMEMOTO if (rrecp->r_type == T_SOA) { 264f62c4786SHajimu UMEMOTO ShrinkBuffer(5 * INT32SZ); 265f62c4786SHajimu UMEMOTO while (isspace(*startp) || !*startp) 266f62c4786SHajimu UMEMOTO startp++; 267f62c4786SHajimu UMEMOTO if (*startp == '(') { 268f62c4786SHajimu UMEMOTO multiline = 1; 269f62c4786SHajimu UMEMOTO startp++; 270f62c4786SHajimu UMEMOTO } else 271f62c4786SHajimu UMEMOTO multiline = 0; 272f62c4786SHajimu UMEMOTO /* serial, refresh, retry, expire, minimum */ 273f62c4786SHajimu UMEMOTO for (i = 0; i < 5; i++) { 274f62c4786SHajimu UMEMOTO soanum = getnum_str(&startp, endp); 275f62c4786SHajimu UMEMOTO if (soanum < 0) 276f62c4786SHajimu UMEMOTO return (-1); 277f62c4786SHajimu UMEMOTO PUTLONG(soanum, cp); 278f62c4786SHajimu UMEMOTO } 279f62c4786SHajimu UMEMOTO if (multiline) { 280f62c4786SHajimu UMEMOTO while (isspace(*startp) || !*startp) 281f62c4786SHajimu UMEMOTO startp++; 282f62c4786SHajimu UMEMOTO if (*startp != ')') 283f62c4786SHajimu UMEMOTO return (-1); 284f62c4786SHajimu UMEMOTO } 285f62c4786SHajimu UMEMOTO } 286f62c4786SHajimu UMEMOTO break; 287f62c4786SHajimu UMEMOTO case T_MX: 288f62c4786SHajimu UMEMOTO case T_AFSDB: 289f62c4786SHajimu UMEMOTO case T_RT: 290f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 291f62c4786SHajimu UMEMOTO if (n < 0) 292f62c4786SHajimu UMEMOTO return (-1); 293f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 294f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 295f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 296f62c4786SHajimu UMEMOTO return (-1); 297f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, dnptrs, lastdnptr); 298f62c4786SHajimu UMEMOTO if (n < 0) 299f62c4786SHajimu UMEMOTO return (-1); 300f62c4786SHajimu UMEMOTO cp += n; 301f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 302f62c4786SHajimu UMEMOTO break; 303f62c4786SHajimu UMEMOTO case T_SRV: 304f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 305f62c4786SHajimu UMEMOTO if (n < 0) 306f62c4786SHajimu UMEMOTO return (-1); 307f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 308f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 309f62c4786SHajimu UMEMOTO 310f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 311f62c4786SHajimu UMEMOTO if (n < 0) 312f62c4786SHajimu UMEMOTO return (-1); 313f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 314f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 315f62c4786SHajimu UMEMOTO 316f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 317f62c4786SHajimu UMEMOTO if (n < 0) 318f62c4786SHajimu UMEMOTO return (-1); 319f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 320f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 321f62c4786SHajimu UMEMOTO 322f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 323f62c4786SHajimu UMEMOTO return (-1); 324f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, NULL, NULL); 325f62c4786SHajimu UMEMOTO if (n < 0) 326f62c4786SHajimu UMEMOTO return (-1); 327f62c4786SHajimu UMEMOTO cp += n; 328f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 329f62c4786SHajimu UMEMOTO break; 330f62c4786SHajimu UMEMOTO case T_PX: 331f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 332f62c4786SHajimu UMEMOTO if (n < 0) 333f62c4786SHajimu UMEMOTO return (-1); 334f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 335f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 336f62c4786SHajimu UMEMOTO for (i = 0; i < 2; i++) { 337f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, 338f62c4786SHajimu UMEMOTO endp)) 339f62c4786SHajimu UMEMOTO return (-1); 340f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, dnptrs, 341f62c4786SHajimu UMEMOTO lastdnptr); 342f62c4786SHajimu UMEMOTO if (n < 0) 343f62c4786SHajimu UMEMOTO return (-1); 344f62c4786SHajimu UMEMOTO cp += n; 345f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 346f62c4786SHajimu UMEMOTO } 347f62c4786SHajimu UMEMOTO break; 348f62c4786SHajimu UMEMOTO case T_WKS: { 349f62c4786SHajimu UMEMOTO char bm[MAXPORT/8]; 350f62c4786SHajimu UMEMOTO unsigned int maxbm = 0; 351f62c4786SHajimu UMEMOTO 352f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 353f62c4786SHajimu UMEMOTO return (-1); 354f62c4786SHajimu UMEMOTO if (!inet_aton(buf2, &ina)) 355f62c4786SHajimu UMEMOTO return (-1); 356f62c4786SHajimu UMEMOTO n1 = ntohl(ina.s_addr); 357f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 358f62c4786SHajimu UMEMOTO PUTLONG(n1, cp); 359f62c4786SHajimu UMEMOTO 360f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 361f62c4786SHajimu UMEMOTO return (-1); 362f62c4786SHajimu UMEMOTO if ((i = res_protocolnumber(buf2)) < 0) 363f62c4786SHajimu UMEMOTO return (-1); 364f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 365f62c4786SHajimu UMEMOTO *cp++ = i & 0xff; 366f62c4786SHajimu UMEMOTO 367f62c4786SHajimu UMEMOTO for (i = 0; i < MAXPORT/8 ; i++) 368f62c4786SHajimu UMEMOTO bm[i] = 0; 369f62c4786SHajimu UMEMOTO 370f62c4786SHajimu UMEMOTO while (getword_str(buf2, sizeof buf2, &startp, endp)) { 371f62c4786SHajimu UMEMOTO if ((n = res_servicenumber(buf2)) <= 0) 372f62c4786SHajimu UMEMOTO return (-1); 373f62c4786SHajimu UMEMOTO 374f62c4786SHajimu UMEMOTO if (n < MAXPORT) { 375f62c4786SHajimu UMEMOTO bm[n/8] |= (0x80>>(n%8)); 376f62c4786SHajimu UMEMOTO if ((unsigned)n > maxbm) 377f62c4786SHajimu UMEMOTO maxbm = n; 378f62c4786SHajimu UMEMOTO } else 379f62c4786SHajimu UMEMOTO return (-1); 380f62c4786SHajimu UMEMOTO } 381f62c4786SHajimu UMEMOTO maxbm = maxbm/8 + 1; 382f62c4786SHajimu UMEMOTO ShrinkBuffer(maxbm); 383f62c4786SHajimu UMEMOTO memcpy(cp, bm, maxbm); 384f62c4786SHajimu UMEMOTO cp += maxbm; 385f62c4786SHajimu UMEMOTO break; 386f62c4786SHajimu UMEMOTO } 387f62c4786SHajimu UMEMOTO case T_HINFO: 388f62c4786SHajimu UMEMOTO for (i = 0; i < 2; i++) { 389f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 390f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 391f62c4786SHajimu UMEMOTO return (-1); 392f62c4786SHajimu UMEMOTO if (n > 255) 393f62c4786SHajimu UMEMOTO return (-1); 394f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 395f62c4786SHajimu UMEMOTO *cp++ = n; 396f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 397f62c4786SHajimu UMEMOTO cp += n; 398f62c4786SHajimu UMEMOTO } 399f62c4786SHajimu UMEMOTO break; 400f62c4786SHajimu UMEMOTO case T_TXT: 401f62c4786SHajimu UMEMOTO for (;;) { 402f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 403f62c4786SHajimu UMEMOTO &startp, endp)) < 0) { 404f62c4786SHajimu UMEMOTO if (cp != (sp2 + INT16SZ)) 405f62c4786SHajimu UMEMOTO break; 406f62c4786SHajimu UMEMOTO return (-1); 407f62c4786SHajimu UMEMOTO } 408f62c4786SHajimu UMEMOTO if (n > 255) 409f62c4786SHajimu UMEMOTO return (-1); 410f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 411f62c4786SHajimu UMEMOTO *cp++ = n; 412f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 413f62c4786SHajimu UMEMOTO cp += n; 414f62c4786SHajimu UMEMOTO } 415f62c4786SHajimu UMEMOTO break; 416f62c4786SHajimu UMEMOTO case T_X25: 417f62c4786SHajimu UMEMOTO /* RFC1183 */ 418f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, &startp, 419f62c4786SHajimu UMEMOTO endp)) < 0) 420f62c4786SHajimu UMEMOTO return (-1); 421f62c4786SHajimu UMEMOTO if (n > 255) 422f62c4786SHajimu UMEMOTO return (-1); 423f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 424f62c4786SHajimu UMEMOTO *cp++ = n; 425f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 426f62c4786SHajimu UMEMOTO cp += n; 427f62c4786SHajimu UMEMOTO break; 428f62c4786SHajimu UMEMOTO case T_ISDN: 429f62c4786SHajimu UMEMOTO /* RFC1183 */ 430f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, &startp, 431f62c4786SHajimu UMEMOTO endp)) < 0) 432f62c4786SHajimu UMEMOTO return (-1); 433f62c4786SHajimu UMEMOTO if ((n > 255) || (n == 0)) 434f62c4786SHajimu UMEMOTO return (-1); 435f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 436f62c4786SHajimu UMEMOTO *cp++ = n; 437f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 438f62c4786SHajimu UMEMOTO cp += n; 439f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, &startp, 440f62c4786SHajimu UMEMOTO endp)) < 0) 441f62c4786SHajimu UMEMOTO n = 0; 442f62c4786SHajimu UMEMOTO if (n > 255) 443f62c4786SHajimu UMEMOTO return (-1); 444f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 445f62c4786SHajimu UMEMOTO *cp++ = n; 446f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 447f62c4786SHajimu UMEMOTO cp += n; 448f62c4786SHajimu UMEMOTO break; 449f62c4786SHajimu UMEMOTO case T_NSAP: 450f62c4786SHajimu UMEMOTO if ((n = inet_nsap_addr((char *)startp, (u_char *)buf2, sizeof(buf2))) != 0) { 451f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 452f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 453f62c4786SHajimu UMEMOTO cp += n; 454f62c4786SHajimu UMEMOTO } else { 455f62c4786SHajimu UMEMOTO return (-1); 456f62c4786SHajimu UMEMOTO } 457f62c4786SHajimu UMEMOTO break; 458f62c4786SHajimu UMEMOTO case T_LOC: 459f62c4786SHajimu UMEMOTO if ((n = loc_aton((char *)startp, (u_char *)buf2)) != 0) { 460f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 461f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 462f62c4786SHajimu UMEMOTO cp += n; 463f62c4786SHajimu UMEMOTO } else 464f62c4786SHajimu UMEMOTO return (-1); 465f62c4786SHajimu UMEMOTO break; 466f62c4786SHajimu UMEMOTO case ns_t_sig: 467d808369aSHajimu UMEMOTO #ifdef _LIBC 468d808369aSHajimu UMEMOTO return (-1); 469d808369aSHajimu UMEMOTO #else 470f62c4786SHajimu UMEMOTO { 471f62c4786SHajimu UMEMOTO int sig_type, success, dateerror; 472f62c4786SHajimu UMEMOTO u_int32_t exptime, timesigned; 473f62c4786SHajimu UMEMOTO 474f62c4786SHajimu UMEMOTO /* type */ 475f62c4786SHajimu UMEMOTO if ((n = getword_str(buf2, sizeof buf2, 476f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 477f62c4786SHajimu UMEMOTO return (-1); 478f62c4786SHajimu UMEMOTO sig_type = sym_ston(__p_type_syms, buf2, &success); 479f62c4786SHajimu UMEMOTO if (!success || sig_type == ns_t_any) 480f62c4786SHajimu UMEMOTO return (-1); 481f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 482f62c4786SHajimu UMEMOTO PUTSHORT(sig_type, cp); 483f62c4786SHajimu UMEMOTO /* alg */ 484f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 485f62c4786SHajimu UMEMOTO if (n < 0) 486f62c4786SHajimu UMEMOTO return (-1); 487f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 488f62c4786SHajimu UMEMOTO *cp++ = n; 489f62c4786SHajimu UMEMOTO /* labels */ 490f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 491f62c4786SHajimu UMEMOTO if (n <= 0 || n > 255) 492f62c4786SHajimu UMEMOTO return (-1); 493f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 494f62c4786SHajimu UMEMOTO *cp++ = n; 495f62c4786SHajimu UMEMOTO /* ottl & expire */ 496f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 497f62c4786SHajimu UMEMOTO return (-1); 498f62c4786SHajimu UMEMOTO exptime = ns_datetosecs(buf2, &dateerror); 499f62c4786SHajimu UMEMOTO if (!dateerror) { 500f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 501f62c4786SHajimu UMEMOTO PUTLONG(rttl, cp); 502f62c4786SHajimu UMEMOTO } 503f62c4786SHajimu UMEMOTO else { 504f62c4786SHajimu UMEMOTO char *ulendp; 505f62c4786SHajimu UMEMOTO u_int32_t ottl; 506f62c4786SHajimu UMEMOTO 507f62c4786SHajimu UMEMOTO errno = 0; 508f62c4786SHajimu UMEMOTO ottl = strtoul(buf2, &ulendp, 10); 509f62c4786SHajimu UMEMOTO if (errno != 0 || 510f62c4786SHajimu UMEMOTO (ulendp != NULL && *ulendp != '\0')) 511f62c4786SHajimu UMEMOTO return (-1); 512f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 513f62c4786SHajimu UMEMOTO PUTLONG(ottl, cp); 514f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, 515f62c4786SHajimu UMEMOTO endp)) 516f62c4786SHajimu UMEMOTO return (-1); 517f62c4786SHajimu UMEMOTO exptime = ns_datetosecs(buf2, &dateerror); 518f62c4786SHajimu UMEMOTO if (dateerror) 519f62c4786SHajimu UMEMOTO return (-1); 520f62c4786SHajimu UMEMOTO } 521f62c4786SHajimu UMEMOTO /* expire */ 522f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 523f62c4786SHajimu UMEMOTO PUTLONG(exptime, cp); 524f62c4786SHajimu UMEMOTO /* timesigned */ 525f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 526f62c4786SHajimu UMEMOTO return (-1); 527f62c4786SHajimu UMEMOTO timesigned = ns_datetosecs(buf2, &dateerror); 528f62c4786SHajimu UMEMOTO if (!dateerror) { 529f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 530f62c4786SHajimu UMEMOTO PUTLONG(timesigned, cp); 531f62c4786SHajimu UMEMOTO } 532f62c4786SHajimu UMEMOTO else 533f62c4786SHajimu UMEMOTO return (-1); 534f62c4786SHajimu UMEMOTO /* footprint */ 535f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 536f62c4786SHajimu UMEMOTO if (n < 0) 537f62c4786SHajimu UMEMOTO return (-1); 538f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 539f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 540f62c4786SHajimu UMEMOTO /* signer name */ 541f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 542f62c4786SHajimu UMEMOTO return (-1); 543f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, dnptrs, lastdnptr); 544f62c4786SHajimu UMEMOTO if (n < 0) 545f62c4786SHajimu UMEMOTO return (-1); 546f62c4786SHajimu UMEMOTO cp += n; 547f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 548f62c4786SHajimu UMEMOTO /* sig */ 549f62c4786SHajimu UMEMOTO if ((n = getword_str(buf2, sizeof buf2, 550f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 551f62c4786SHajimu UMEMOTO return (-1); 552f62c4786SHajimu UMEMOTO siglen = b64_pton(buf2, buf3, sizeof(buf3)); 553f62c4786SHajimu UMEMOTO if (siglen < 0) 554f62c4786SHajimu UMEMOTO return (-1); 555f62c4786SHajimu UMEMOTO ShrinkBuffer(siglen); 556f62c4786SHajimu UMEMOTO memcpy(cp, buf3, siglen); 557f62c4786SHajimu UMEMOTO cp += siglen; 558f62c4786SHajimu UMEMOTO break; 559f62c4786SHajimu UMEMOTO } 560d808369aSHajimu UMEMOTO #endif 561f62c4786SHajimu UMEMOTO case ns_t_key: 562f62c4786SHajimu UMEMOTO /* flags */ 563f62c4786SHajimu UMEMOTO n = gethexnum_str(&startp, endp); 564f62c4786SHajimu UMEMOTO if (n < 0) 565f62c4786SHajimu UMEMOTO return (-1); 566f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 567f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 568f62c4786SHajimu UMEMOTO /* proto */ 569f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 570f62c4786SHajimu UMEMOTO if (n < 0) 571f62c4786SHajimu UMEMOTO return (-1); 572f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 573f62c4786SHajimu UMEMOTO *cp++ = n; 574f62c4786SHajimu UMEMOTO /* alg */ 575f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 576f62c4786SHajimu UMEMOTO if (n < 0) 577f62c4786SHajimu UMEMOTO return (-1); 578f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 579f62c4786SHajimu UMEMOTO *cp++ = n; 580f62c4786SHajimu UMEMOTO /* key */ 581f62c4786SHajimu UMEMOTO if ((n = getword_str(buf2, sizeof buf2, 582f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 583f62c4786SHajimu UMEMOTO return (-1); 584f62c4786SHajimu UMEMOTO keylen = b64_pton(buf2, buf3, sizeof(buf3)); 585f62c4786SHajimu UMEMOTO if (keylen < 0) 586f62c4786SHajimu UMEMOTO return (-1); 587f62c4786SHajimu UMEMOTO ShrinkBuffer(keylen); 588f62c4786SHajimu UMEMOTO memcpy(cp, buf3, keylen); 589f62c4786SHajimu UMEMOTO cp += keylen; 590f62c4786SHajimu UMEMOTO break; 591f62c4786SHajimu UMEMOTO case ns_t_nxt: 592f62c4786SHajimu UMEMOTO { 593f62c4786SHajimu UMEMOTO int success, nxt_type; 594f62c4786SHajimu UMEMOTO u_char data[32]; 595f62c4786SHajimu UMEMOTO int maxtype; 596f62c4786SHajimu UMEMOTO 597f62c4786SHajimu UMEMOTO /* next name */ 598f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 599f62c4786SHajimu UMEMOTO return (-1); 600f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, NULL, NULL); 601f62c4786SHajimu UMEMOTO if (n < 0) 602f62c4786SHajimu UMEMOTO return (-1); 603f62c4786SHajimu UMEMOTO cp += n; 604f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 605f62c4786SHajimu UMEMOTO maxtype = 0; 606f62c4786SHajimu UMEMOTO memset(data, 0, sizeof data); 607f62c4786SHajimu UMEMOTO for (;;) { 608f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, 609f62c4786SHajimu UMEMOTO endp)) 610f62c4786SHajimu UMEMOTO break; 611f62c4786SHajimu UMEMOTO nxt_type = sym_ston(__p_type_syms, buf2, 612f62c4786SHajimu UMEMOTO &success); 613f62c4786SHajimu UMEMOTO if (!success || !ns_t_rr_p(nxt_type)) 614f62c4786SHajimu UMEMOTO return (-1); 615f62c4786SHajimu UMEMOTO NS_NXT_BIT_SET(nxt_type, data); 616f62c4786SHajimu UMEMOTO if (nxt_type > maxtype) 617f62c4786SHajimu UMEMOTO maxtype = nxt_type; 618f62c4786SHajimu UMEMOTO } 619f62c4786SHajimu UMEMOTO n = maxtype/NS_NXT_BITS+1; 620f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 621f62c4786SHajimu UMEMOTO memcpy(cp, data, n); 622f62c4786SHajimu UMEMOTO cp += n; 623f62c4786SHajimu UMEMOTO break; 624f62c4786SHajimu UMEMOTO } 625f62c4786SHajimu UMEMOTO case ns_t_cert: 626f62c4786SHajimu UMEMOTO /* type */ 627f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 628f62c4786SHajimu UMEMOTO if (n < 0) 629f62c4786SHajimu UMEMOTO return (-1); 630f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 631f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 632f62c4786SHajimu UMEMOTO /* key tag */ 633f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 634f62c4786SHajimu UMEMOTO if (n < 0) 635f62c4786SHajimu UMEMOTO return (-1); 636f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 637f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 638f62c4786SHajimu UMEMOTO /* alg */ 639f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 640f62c4786SHajimu UMEMOTO if (n < 0) 641f62c4786SHajimu UMEMOTO return (-1); 642f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 643f62c4786SHajimu UMEMOTO *cp++ = n; 644f62c4786SHajimu UMEMOTO /* cert */ 645f62c4786SHajimu UMEMOTO if ((n = getword_str(buf2, sizeof buf2, 646f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 647f62c4786SHajimu UMEMOTO return (-1); 648f62c4786SHajimu UMEMOTO certlen = b64_pton(buf2, buf3, sizeof(buf3)); 649f62c4786SHajimu UMEMOTO if (certlen < 0) 650f62c4786SHajimu UMEMOTO return (-1); 651f62c4786SHajimu UMEMOTO ShrinkBuffer(certlen); 652f62c4786SHajimu UMEMOTO memcpy(cp, buf3, certlen); 653f62c4786SHajimu UMEMOTO cp += certlen; 654f62c4786SHajimu UMEMOTO break; 655f62c4786SHajimu UMEMOTO case ns_t_aaaa: 656f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 657f62c4786SHajimu UMEMOTO return (-1); 658f62c4786SHajimu UMEMOTO if (inet_pton(AF_INET6, buf2, &in6a) <= 0) 659f62c4786SHajimu UMEMOTO return (-1); 660f62c4786SHajimu UMEMOTO ShrinkBuffer(NS_IN6ADDRSZ); 661f62c4786SHajimu UMEMOTO memcpy(cp, &in6a, NS_IN6ADDRSZ); 662f62c4786SHajimu UMEMOTO cp += NS_IN6ADDRSZ; 663f62c4786SHajimu UMEMOTO break; 664f62c4786SHajimu UMEMOTO case ns_t_naptr: 665f62c4786SHajimu UMEMOTO /* Order Preference Flags Service Replacement Regexp */ 666f62c4786SHajimu UMEMOTO /* Order */ 667f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 668f62c4786SHajimu UMEMOTO if (n < 0 || n > 65535) 669f62c4786SHajimu UMEMOTO return (-1); 670f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 671f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 672f62c4786SHajimu UMEMOTO /* Preference */ 673f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 674f62c4786SHajimu UMEMOTO if (n < 0 || n > 65535) 675f62c4786SHajimu UMEMOTO return (-1); 676f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 677f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 678f62c4786SHajimu UMEMOTO /* Flags */ 679f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 680f62c4786SHajimu UMEMOTO &startp, endp)) < 0) { 681f62c4786SHajimu UMEMOTO return (-1); 682f62c4786SHajimu UMEMOTO } 683f62c4786SHajimu UMEMOTO if (n > 255) 684f62c4786SHajimu UMEMOTO return (-1); 685f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 686f62c4786SHajimu UMEMOTO *cp++ = n; 687f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 688f62c4786SHajimu UMEMOTO cp += n; 689f62c4786SHajimu UMEMOTO /* Service Classes */ 690f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 691f62c4786SHajimu UMEMOTO &startp, endp)) < 0) { 692f62c4786SHajimu UMEMOTO return (-1); 693f62c4786SHajimu UMEMOTO } 694f62c4786SHajimu UMEMOTO if (n > 255) 695f62c4786SHajimu UMEMOTO return (-1); 696f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 697f62c4786SHajimu UMEMOTO *cp++ = n; 698f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 699f62c4786SHajimu UMEMOTO cp += n; 700f62c4786SHajimu UMEMOTO /* Pattern */ 701f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 702f62c4786SHajimu UMEMOTO &startp, endp)) < 0) { 703f62c4786SHajimu UMEMOTO return (-1); 704f62c4786SHajimu UMEMOTO } 705f62c4786SHajimu UMEMOTO if (n > 255) 706f62c4786SHajimu UMEMOTO return (-1); 707f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 708f62c4786SHajimu UMEMOTO *cp++ = n; 709f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 710f62c4786SHajimu UMEMOTO cp += n; 711f62c4786SHajimu UMEMOTO /* Replacement */ 712f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 713f62c4786SHajimu UMEMOTO return (-1); 714f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, NULL, NULL); 715f62c4786SHajimu UMEMOTO if (n < 0) 716f62c4786SHajimu UMEMOTO return (-1); 717f62c4786SHajimu UMEMOTO cp += n; 718f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 719f62c4786SHajimu UMEMOTO break; 720f62c4786SHajimu UMEMOTO default: 721f62c4786SHajimu UMEMOTO return (-1); 722f62c4786SHajimu UMEMOTO } /*switch*/ 723f62c4786SHajimu UMEMOTO n = (u_int16_t)((cp - sp2) - INT16SZ); 724f62c4786SHajimu UMEMOTO PUTSHORT(n, sp2); 725f62c4786SHajimu UMEMOTO } /*for*/ 726f62c4786SHajimu UMEMOTO 727f62c4786SHajimu UMEMOTO hp->qdcount = htons(counts[0]); 728f62c4786SHajimu UMEMOTO hp->ancount = htons(counts[1]); 729f62c4786SHajimu UMEMOTO hp->nscount = htons(counts[2]); 730f62c4786SHajimu UMEMOTO hp->arcount = htons(counts[3]); 731f62c4786SHajimu UMEMOTO return (cp - buf); 732f62c4786SHajimu UMEMOTO } 733f62c4786SHajimu UMEMOTO 734dde4a85dSHajimu UMEMOTO /*% 735f62c4786SHajimu UMEMOTO * Get a whitespace delimited word from a string (not file) 736f62c4786SHajimu UMEMOTO * into buf. modify the start pointer to point after the 737f62c4786SHajimu UMEMOTO * word in the string. 738f62c4786SHajimu UMEMOTO */ 739f62c4786SHajimu UMEMOTO static int 740f62c4786SHajimu UMEMOTO getword_str(char *buf, int size, u_char **startpp, u_char *endp) { 741f62c4786SHajimu UMEMOTO char *cp; 742f62c4786SHajimu UMEMOTO int c; 743f62c4786SHajimu UMEMOTO 744f62c4786SHajimu UMEMOTO for (cp = buf; *startpp <= endp; ) { 745f62c4786SHajimu UMEMOTO c = **startpp; 746f62c4786SHajimu UMEMOTO if (isspace(c) || c == '\0') { 747dde4a85dSHajimu UMEMOTO if (cp != buf) /*%< trailing whitespace */ 748f62c4786SHajimu UMEMOTO break; 749dde4a85dSHajimu UMEMOTO else { /*%< leading whitespace */ 750f62c4786SHajimu UMEMOTO (*startpp)++; 751f62c4786SHajimu UMEMOTO continue; 752f62c4786SHajimu UMEMOTO } 753f62c4786SHajimu UMEMOTO } 754f62c4786SHajimu UMEMOTO (*startpp)++; 755f62c4786SHajimu UMEMOTO if (cp >= buf+size-1) 756f62c4786SHajimu UMEMOTO break; 757f62c4786SHajimu UMEMOTO *cp++ = (u_char)c; 758f62c4786SHajimu UMEMOTO } 759f62c4786SHajimu UMEMOTO *cp = '\0'; 760f62c4786SHajimu UMEMOTO return (cp != buf); 761f62c4786SHajimu UMEMOTO } 762f62c4786SHajimu UMEMOTO 763dde4a85dSHajimu UMEMOTO /*% 764f62c4786SHajimu UMEMOTO * get a white spae delimited string from memory. Process quoted strings 765dde4a85dSHajimu UMEMOTO * and \\DDD escapes. Return length or -1 on error. Returned string may 766f62c4786SHajimu UMEMOTO * contain nulls. 767f62c4786SHajimu UMEMOTO */ 768f62c4786SHajimu UMEMOTO static char digits[] = "0123456789"; 769f62c4786SHajimu UMEMOTO static int 770f62c4786SHajimu UMEMOTO getstr_str(char *buf, int size, u_char **startpp, u_char *endp) { 771f62c4786SHajimu UMEMOTO char *cp; 772f62c4786SHajimu UMEMOTO int c, c1 = 0; 773f62c4786SHajimu UMEMOTO int inquote = 0; 774f62c4786SHajimu UMEMOTO int seen_quote = 0; 775f62c4786SHajimu UMEMOTO int escape = 0; 776f62c4786SHajimu UMEMOTO int dig = 0; 777f62c4786SHajimu UMEMOTO 778f62c4786SHajimu UMEMOTO for (cp = buf; *startpp <= endp; ) { 779f62c4786SHajimu UMEMOTO if ((c = **startpp) == '\0') 780f62c4786SHajimu UMEMOTO break; 781f62c4786SHajimu UMEMOTO /* leading white space */ 782f62c4786SHajimu UMEMOTO if ((cp == buf) && !seen_quote && isspace(c)) { 783f62c4786SHajimu UMEMOTO (*startpp)++; 784f62c4786SHajimu UMEMOTO continue; 785f62c4786SHajimu UMEMOTO } 786f62c4786SHajimu UMEMOTO 787f62c4786SHajimu UMEMOTO switch (c) { 788f62c4786SHajimu UMEMOTO case '\\': 789f62c4786SHajimu UMEMOTO if (!escape) { 790f62c4786SHajimu UMEMOTO escape = 1; 791f62c4786SHajimu UMEMOTO dig = 0; 792f62c4786SHajimu UMEMOTO c1 = 0; 793f62c4786SHajimu UMEMOTO (*startpp)++; 794f62c4786SHajimu UMEMOTO continue; 795f62c4786SHajimu UMEMOTO } 796f62c4786SHajimu UMEMOTO goto do_escape; 797f62c4786SHajimu UMEMOTO case '"': 798f62c4786SHajimu UMEMOTO if (!escape) { 799f62c4786SHajimu UMEMOTO inquote = !inquote; 800f62c4786SHajimu UMEMOTO seen_quote = 1; 801f62c4786SHajimu UMEMOTO (*startpp)++; 802f62c4786SHajimu UMEMOTO continue; 803f62c4786SHajimu UMEMOTO } 804f62c4786SHajimu UMEMOTO /* fall through */ 805f62c4786SHajimu UMEMOTO default: 806f62c4786SHajimu UMEMOTO do_escape: 807f62c4786SHajimu UMEMOTO if (escape) { 808f62c4786SHajimu UMEMOTO switch (c) { 809f62c4786SHajimu UMEMOTO case '0': 810f62c4786SHajimu UMEMOTO case '1': 811f62c4786SHajimu UMEMOTO case '2': 812f62c4786SHajimu UMEMOTO case '3': 813f62c4786SHajimu UMEMOTO case '4': 814f62c4786SHajimu UMEMOTO case '5': 815f62c4786SHajimu UMEMOTO case '6': 816f62c4786SHajimu UMEMOTO case '7': 817f62c4786SHajimu UMEMOTO case '8': 818f62c4786SHajimu UMEMOTO case '9': 819f62c4786SHajimu UMEMOTO c1 = c1 * 10 + 820f62c4786SHajimu UMEMOTO (strchr(digits, c) - digits); 821f62c4786SHajimu UMEMOTO 822f62c4786SHajimu UMEMOTO if (++dig == 3) { 823f62c4786SHajimu UMEMOTO c = c1 &0xff; 824f62c4786SHajimu UMEMOTO break; 825f62c4786SHajimu UMEMOTO } 826f62c4786SHajimu UMEMOTO (*startpp)++; 827f62c4786SHajimu UMEMOTO continue; 828f62c4786SHajimu UMEMOTO } 829f62c4786SHajimu UMEMOTO escape = 0; 830f62c4786SHajimu UMEMOTO } else if (!inquote && isspace(c)) 831f62c4786SHajimu UMEMOTO goto done; 832f62c4786SHajimu UMEMOTO if (cp >= buf+size-1) 833f62c4786SHajimu UMEMOTO goto done; 834f62c4786SHajimu UMEMOTO *cp++ = (u_char)c; 835f62c4786SHajimu UMEMOTO (*startpp)++; 836f62c4786SHajimu UMEMOTO } 837f62c4786SHajimu UMEMOTO } 838f62c4786SHajimu UMEMOTO done: 839f62c4786SHajimu UMEMOTO *cp = '\0'; 840f62c4786SHajimu UMEMOTO return ((cp == buf)? (seen_quote? 0: -1): (cp - buf)); 841f62c4786SHajimu UMEMOTO } 842dde4a85dSHajimu UMEMOTO 843dde4a85dSHajimu UMEMOTO /*% 844f62c4786SHajimu UMEMOTO * Get a whitespace delimited base 16 number from a string (not file) into buf 845f62c4786SHajimu UMEMOTO * update the start pointer to point after the number in the string. 846f62c4786SHajimu UMEMOTO */ 847f62c4786SHajimu UMEMOTO static int 848f62c4786SHajimu UMEMOTO gethexnum_str(u_char **startpp, u_char *endp) { 849f62c4786SHajimu UMEMOTO int c, n; 850f62c4786SHajimu UMEMOTO int seendigit = 0; 851f62c4786SHajimu UMEMOTO int m = 0; 852f62c4786SHajimu UMEMOTO 853f62c4786SHajimu UMEMOTO if (*startpp + 2 >= endp || strncasecmp((char *)*startpp, "0x", 2) != 0) 854f62c4786SHajimu UMEMOTO return getnum_str(startpp, endp); 855f62c4786SHajimu UMEMOTO (*startpp)+=2; 856f62c4786SHajimu UMEMOTO for (n = 0; *startpp <= endp; ) { 857f62c4786SHajimu UMEMOTO c = **startpp; 858f62c4786SHajimu UMEMOTO if (isspace(c) || c == '\0') { 859dde4a85dSHajimu UMEMOTO if (seendigit) /*%< trailing whitespace */ 860f62c4786SHajimu UMEMOTO break; 861dde4a85dSHajimu UMEMOTO else { /*%< leading whitespace */ 862f62c4786SHajimu UMEMOTO (*startpp)++; 863f62c4786SHajimu UMEMOTO continue; 864f62c4786SHajimu UMEMOTO } 865f62c4786SHajimu UMEMOTO } 866f62c4786SHajimu UMEMOTO if (c == ';') { 867f62c4786SHajimu UMEMOTO while ((*startpp <= endp) && 868f62c4786SHajimu UMEMOTO ((c = **startpp) != '\n')) 869f62c4786SHajimu UMEMOTO (*startpp)++; 870f62c4786SHajimu UMEMOTO if (seendigit) 871f62c4786SHajimu UMEMOTO break; 872f62c4786SHajimu UMEMOTO continue; 873f62c4786SHajimu UMEMOTO } 874f62c4786SHajimu UMEMOTO if (!isxdigit(c)) { 875f62c4786SHajimu UMEMOTO if (c == ')' && seendigit) { 876f62c4786SHajimu UMEMOTO (*startpp)--; 877f62c4786SHajimu UMEMOTO break; 878f62c4786SHajimu UMEMOTO } 879f62c4786SHajimu UMEMOTO return (-1); 880f62c4786SHajimu UMEMOTO } 881f62c4786SHajimu UMEMOTO (*startpp)++; 882f62c4786SHajimu UMEMOTO if (isdigit(c)) 883f62c4786SHajimu UMEMOTO n = n * 16 + (c - '0'); 884f62c4786SHajimu UMEMOTO else 885f62c4786SHajimu UMEMOTO n = n * 16 + (tolower(c) - 'a' + 10); 886f62c4786SHajimu UMEMOTO seendigit = 1; 887f62c4786SHajimu UMEMOTO } 888f62c4786SHajimu UMEMOTO return (n + m); 889f62c4786SHajimu UMEMOTO } 890f62c4786SHajimu UMEMOTO 891dde4a85dSHajimu UMEMOTO /*% 892f62c4786SHajimu UMEMOTO * Get a whitespace delimited base 10 number from a string (not file) into buf 893f62c4786SHajimu UMEMOTO * update the start pointer to point after the number in the string. 894f62c4786SHajimu UMEMOTO */ 895f62c4786SHajimu UMEMOTO static int 896f62c4786SHajimu UMEMOTO getnum_str(u_char **startpp, u_char *endp) { 897f62c4786SHajimu UMEMOTO int c, n; 898f62c4786SHajimu UMEMOTO int seendigit = 0; 899f62c4786SHajimu UMEMOTO int m = 0; 900f62c4786SHajimu UMEMOTO 901f62c4786SHajimu UMEMOTO for (n = 0; *startpp <= endp; ) { 902f62c4786SHajimu UMEMOTO c = **startpp; 903f62c4786SHajimu UMEMOTO if (isspace(c) || c == '\0') { 904dde4a85dSHajimu UMEMOTO if (seendigit) /*%< trailing whitespace */ 905f62c4786SHajimu UMEMOTO break; 906dde4a85dSHajimu UMEMOTO else { /*%< leading whitespace */ 907f62c4786SHajimu UMEMOTO (*startpp)++; 908f62c4786SHajimu UMEMOTO continue; 909f62c4786SHajimu UMEMOTO } 910f62c4786SHajimu UMEMOTO } 911f62c4786SHajimu UMEMOTO if (c == ';') { 912f62c4786SHajimu UMEMOTO while ((*startpp <= endp) && 913f62c4786SHajimu UMEMOTO ((c = **startpp) != '\n')) 914f62c4786SHajimu UMEMOTO (*startpp)++; 915f62c4786SHajimu UMEMOTO if (seendigit) 916f62c4786SHajimu UMEMOTO break; 917f62c4786SHajimu UMEMOTO continue; 918f62c4786SHajimu UMEMOTO } 919f62c4786SHajimu UMEMOTO if (!isdigit(c)) { 920f62c4786SHajimu UMEMOTO if (c == ')' && seendigit) { 921f62c4786SHajimu UMEMOTO (*startpp)--; 922f62c4786SHajimu UMEMOTO break; 923f62c4786SHajimu UMEMOTO } 924f62c4786SHajimu UMEMOTO return (-1); 925f62c4786SHajimu UMEMOTO } 926f62c4786SHajimu UMEMOTO (*startpp)++; 927f62c4786SHajimu UMEMOTO n = n * 10 + (c - '0'); 928f62c4786SHajimu UMEMOTO seendigit = 1; 929f62c4786SHajimu UMEMOTO } 930f62c4786SHajimu UMEMOTO return (n + m); 931f62c4786SHajimu UMEMOTO } 932f62c4786SHajimu UMEMOTO 933dde4a85dSHajimu UMEMOTO /*% 934f62c4786SHajimu UMEMOTO * Allocate a resource record buffer & save rr info. 935f62c4786SHajimu UMEMOTO */ 936f62c4786SHajimu UMEMOTO ns_updrec * 937f62c4786SHajimu UMEMOTO res_mkupdrec(int section, const char *dname, 938f62c4786SHajimu UMEMOTO u_int class, u_int type, u_long ttl) { 939f62c4786SHajimu UMEMOTO ns_updrec *rrecp = (ns_updrec *)calloc(1, sizeof(ns_updrec)); 940f62c4786SHajimu UMEMOTO 941f62c4786SHajimu UMEMOTO if (!rrecp || !(rrecp->r_dname = strdup(dname))) { 942f62c4786SHajimu UMEMOTO if (rrecp) 943f62c4786SHajimu UMEMOTO free((char *)rrecp); 944f62c4786SHajimu UMEMOTO return (NULL); 945f62c4786SHajimu UMEMOTO } 946f62c4786SHajimu UMEMOTO INIT_LINK(rrecp, r_link); 947f62c4786SHajimu UMEMOTO INIT_LINK(rrecp, r_glink); 948f62c4786SHajimu UMEMOTO rrecp->r_class = (ns_class)class; 949f62c4786SHajimu UMEMOTO rrecp->r_type = (ns_type)type; 950f62c4786SHajimu UMEMOTO rrecp->r_ttl = ttl; 951f62c4786SHajimu UMEMOTO rrecp->r_section = (ns_sect)section; 952f62c4786SHajimu UMEMOTO return (rrecp); 953f62c4786SHajimu UMEMOTO } 954f62c4786SHajimu UMEMOTO 955dde4a85dSHajimu UMEMOTO /*% 956f62c4786SHajimu UMEMOTO * Free a resource record buffer created by res_mkupdrec. 957f62c4786SHajimu UMEMOTO */ 958f62c4786SHajimu UMEMOTO void 959f62c4786SHajimu UMEMOTO res_freeupdrec(ns_updrec *rrecp) { 960f62c4786SHajimu UMEMOTO /* Note: freeing r_dp is the caller's responsibility. */ 961f62c4786SHajimu UMEMOTO if (rrecp->r_dname != NULL) 962f62c4786SHajimu UMEMOTO free(rrecp->r_dname); 963f62c4786SHajimu UMEMOTO free(rrecp); 964f62c4786SHajimu UMEMOTO } 965f62c4786SHajimu UMEMOTO 966f62c4786SHajimu UMEMOTO struct valuelist { 967f62c4786SHajimu UMEMOTO struct valuelist * next; 968f62c4786SHajimu UMEMOTO struct valuelist * prev; 969f62c4786SHajimu UMEMOTO char * name; 970f62c4786SHajimu UMEMOTO char * proto; 971f62c4786SHajimu UMEMOTO int port; 972f62c4786SHajimu UMEMOTO }; 973f62c4786SHajimu UMEMOTO static struct valuelist *servicelist, *protolist; 974f62c4786SHajimu UMEMOTO 975f62c4786SHajimu UMEMOTO static void 976c6a7de08SCraig Rodrigues res_buildservicelist(void) { 977f62c4786SHajimu UMEMOTO struct servent *sp; 978f62c4786SHajimu UMEMOTO struct valuelist *slp; 979f62c4786SHajimu UMEMOTO 980f62c4786SHajimu UMEMOTO #ifdef MAYBE_HESIOD 981f62c4786SHajimu UMEMOTO setservent(0); 982f62c4786SHajimu UMEMOTO #else 983f62c4786SHajimu UMEMOTO setservent(1); 984f62c4786SHajimu UMEMOTO #endif 985f62c4786SHajimu UMEMOTO while ((sp = getservent()) != NULL) { 986f62c4786SHajimu UMEMOTO slp = (struct valuelist *)malloc(sizeof(struct valuelist)); 987f62c4786SHajimu UMEMOTO if (!slp) 988f62c4786SHajimu UMEMOTO break; 989f62c4786SHajimu UMEMOTO slp->name = strdup(sp->s_name); 990f62c4786SHajimu UMEMOTO slp->proto = strdup(sp->s_proto); 991f62c4786SHajimu UMEMOTO if ((slp->name == NULL) || (slp->proto == NULL)) { 992f62c4786SHajimu UMEMOTO if (slp->name) free(slp->name); 993f62c4786SHajimu UMEMOTO if (slp->proto) free(slp->proto); 994f62c4786SHajimu UMEMOTO free(slp); 995f62c4786SHajimu UMEMOTO break; 996f62c4786SHajimu UMEMOTO } 997dde4a85dSHajimu UMEMOTO slp->port = ntohs((u_int16_t)sp->s_port); /*%< host byt order */ 998f62c4786SHajimu UMEMOTO slp->next = servicelist; 999f62c4786SHajimu UMEMOTO slp->prev = NULL; 1000f62c4786SHajimu UMEMOTO if (servicelist) 1001f62c4786SHajimu UMEMOTO servicelist->prev = slp; 1002f62c4786SHajimu UMEMOTO servicelist = slp; 1003f62c4786SHajimu UMEMOTO } 1004f62c4786SHajimu UMEMOTO endservent(); 1005f62c4786SHajimu UMEMOTO } 1006f62c4786SHajimu UMEMOTO 1007d808369aSHajimu UMEMOTO #ifndef _LIBC 1008f62c4786SHajimu UMEMOTO void 1009f62c4786SHajimu UMEMOTO res_destroyservicelist() { 1010f62c4786SHajimu UMEMOTO struct valuelist *slp, *slp_next; 1011f62c4786SHajimu UMEMOTO 1012f62c4786SHajimu UMEMOTO for (slp = servicelist; slp != NULL; slp = slp_next) { 1013f62c4786SHajimu UMEMOTO slp_next = slp->next; 1014f62c4786SHajimu UMEMOTO free(slp->name); 1015f62c4786SHajimu UMEMOTO free(slp->proto); 1016f62c4786SHajimu UMEMOTO free(slp); 1017f62c4786SHajimu UMEMOTO } 1018f62c4786SHajimu UMEMOTO servicelist = (struct valuelist *)0; 1019f62c4786SHajimu UMEMOTO } 1020d808369aSHajimu UMEMOTO #endif 1021f62c4786SHajimu UMEMOTO 1022d808369aSHajimu UMEMOTO #ifdef _LIBC 1023d808369aSHajimu UMEMOTO static 1024d808369aSHajimu UMEMOTO #endif 1025f62c4786SHajimu UMEMOTO void 1026f62c4786SHajimu UMEMOTO res_buildprotolist(void) { 1027f62c4786SHajimu UMEMOTO struct protoent *pp; 1028f62c4786SHajimu UMEMOTO struct valuelist *slp; 1029f62c4786SHajimu UMEMOTO 1030f62c4786SHajimu UMEMOTO #ifdef MAYBE_HESIOD 1031f62c4786SHajimu UMEMOTO setprotoent(0); 1032f62c4786SHajimu UMEMOTO #else 1033f62c4786SHajimu UMEMOTO setprotoent(1); 1034f62c4786SHajimu UMEMOTO #endif 1035f62c4786SHajimu UMEMOTO while ((pp = getprotoent()) != NULL) { 1036f62c4786SHajimu UMEMOTO slp = (struct valuelist *)malloc(sizeof(struct valuelist)); 1037f62c4786SHajimu UMEMOTO if (!slp) 1038f62c4786SHajimu UMEMOTO break; 1039f62c4786SHajimu UMEMOTO slp->name = strdup(pp->p_name); 1040f62c4786SHajimu UMEMOTO if (slp->name == NULL) { 1041f62c4786SHajimu UMEMOTO free(slp); 1042f62c4786SHajimu UMEMOTO break; 1043f62c4786SHajimu UMEMOTO } 1044dde4a85dSHajimu UMEMOTO slp->port = pp->p_proto; /*%< host byte order */ 1045f62c4786SHajimu UMEMOTO slp->next = protolist; 1046f62c4786SHajimu UMEMOTO slp->prev = NULL; 1047f62c4786SHajimu UMEMOTO if (protolist) 1048f62c4786SHajimu UMEMOTO protolist->prev = slp; 1049f62c4786SHajimu UMEMOTO protolist = slp; 1050f62c4786SHajimu UMEMOTO } 1051f62c4786SHajimu UMEMOTO endprotoent(); 1052f62c4786SHajimu UMEMOTO } 1053f62c4786SHajimu UMEMOTO 1054d808369aSHajimu UMEMOTO #ifndef _LIBC 1055f62c4786SHajimu UMEMOTO void 1056f62c4786SHajimu UMEMOTO res_destroyprotolist(void) { 1057f62c4786SHajimu UMEMOTO struct valuelist *plp, *plp_next; 1058f62c4786SHajimu UMEMOTO 1059f62c4786SHajimu UMEMOTO for (plp = protolist; plp != NULL; plp = plp_next) { 1060f62c4786SHajimu UMEMOTO plp_next = plp->next; 1061f62c4786SHajimu UMEMOTO free(plp->name); 1062f62c4786SHajimu UMEMOTO free(plp); 1063f62c4786SHajimu UMEMOTO } 1064f62c4786SHajimu UMEMOTO protolist = (struct valuelist *)0; 1065f62c4786SHajimu UMEMOTO } 1066d808369aSHajimu UMEMOTO #endif 1067f62c4786SHajimu UMEMOTO 1068f62c4786SHajimu UMEMOTO static int 1069f62c4786SHajimu UMEMOTO findservice(const char *s, struct valuelist **list) { 1070f62c4786SHajimu UMEMOTO struct valuelist *lp = *list; 1071f62c4786SHajimu UMEMOTO int n; 1072f62c4786SHajimu UMEMOTO 1073f62c4786SHajimu UMEMOTO for (; lp != NULL; lp = lp->next) 1074f62c4786SHajimu UMEMOTO if (strcasecmp(lp->name, s) == 0) { 1075f62c4786SHajimu UMEMOTO if (lp != *list) { 1076f62c4786SHajimu UMEMOTO lp->prev->next = lp->next; 1077f62c4786SHajimu UMEMOTO if (lp->next) 1078f62c4786SHajimu UMEMOTO lp->next->prev = lp->prev; 1079f62c4786SHajimu UMEMOTO (*list)->prev = lp; 1080f62c4786SHajimu UMEMOTO lp->next = *list; 1081f62c4786SHajimu UMEMOTO *list = lp; 1082f62c4786SHajimu UMEMOTO } 1083dde4a85dSHajimu UMEMOTO return (lp->port); /*%< host byte order */ 1084f62c4786SHajimu UMEMOTO } 1085f62c4786SHajimu UMEMOTO if (sscanf(s, "%d", &n) != 1 || n <= 0) 1086f62c4786SHajimu UMEMOTO n = -1; 1087f62c4786SHajimu UMEMOTO return (n); 1088f62c4786SHajimu UMEMOTO } 1089f62c4786SHajimu UMEMOTO 1090dde4a85dSHajimu UMEMOTO /*% 1091f62c4786SHajimu UMEMOTO * Convert service name or (ascii) number to int. 1092f62c4786SHajimu UMEMOTO */ 1093d808369aSHajimu UMEMOTO #ifdef _LIBC 1094d808369aSHajimu UMEMOTO static 1095d808369aSHajimu UMEMOTO #endif 1096f62c4786SHajimu UMEMOTO int 1097f62c4786SHajimu UMEMOTO res_servicenumber(const char *p) { 1098f62c4786SHajimu UMEMOTO if (servicelist == (struct valuelist *)0) 1099f62c4786SHajimu UMEMOTO res_buildservicelist(); 1100f62c4786SHajimu UMEMOTO return (findservice(p, &servicelist)); 1101f62c4786SHajimu UMEMOTO } 1102f62c4786SHajimu UMEMOTO 1103dde4a85dSHajimu UMEMOTO /*% 1104f62c4786SHajimu UMEMOTO * Convert protocol name or (ascii) number to int. 1105f62c4786SHajimu UMEMOTO */ 1106d808369aSHajimu UMEMOTO #ifdef _LIBC 1107d808369aSHajimu UMEMOTO static 1108d808369aSHajimu UMEMOTO #endif 1109f62c4786SHajimu UMEMOTO int 1110f62c4786SHajimu UMEMOTO res_protocolnumber(const char *p) { 1111f62c4786SHajimu UMEMOTO if (protolist == (struct valuelist *)0) 1112f62c4786SHajimu UMEMOTO res_buildprotolist(); 1113f62c4786SHajimu UMEMOTO return (findservice(p, &protolist)); 1114f62c4786SHajimu UMEMOTO } 1115f62c4786SHajimu UMEMOTO 1116d808369aSHajimu UMEMOTO #ifndef _LIBC 1117f62c4786SHajimu UMEMOTO static struct servent * 1118dde4a85dSHajimu UMEMOTO cgetservbyport(u_int16_t port, const char *proto) { /*%< Host byte order. */ 1119f62c4786SHajimu UMEMOTO struct valuelist **list = &servicelist; 1120f62c4786SHajimu UMEMOTO struct valuelist *lp = *list; 1121f62c4786SHajimu UMEMOTO static struct servent serv; 1122f62c4786SHajimu UMEMOTO 1123f62c4786SHajimu UMEMOTO port = ntohs(port); 1124f62c4786SHajimu UMEMOTO for (; lp != NULL; lp = lp->next) { 1125dde4a85dSHajimu UMEMOTO if (port != (u_int16_t)lp->port) /*%< Host byte order. */ 1126f62c4786SHajimu UMEMOTO continue; 1127f62c4786SHajimu UMEMOTO if (strcasecmp(lp->proto, proto) == 0) { 1128f62c4786SHajimu UMEMOTO if (lp != *list) { 1129f62c4786SHajimu UMEMOTO lp->prev->next = lp->next; 1130f62c4786SHajimu UMEMOTO if (lp->next) 1131f62c4786SHajimu UMEMOTO lp->next->prev = lp->prev; 1132f62c4786SHajimu UMEMOTO (*list)->prev = lp; 1133f62c4786SHajimu UMEMOTO lp->next = *list; 1134f62c4786SHajimu UMEMOTO *list = lp; 1135f62c4786SHajimu UMEMOTO } 1136f62c4786SHajimu UMEMOTO serv.s_name = lp->name; 1137f62c4786SHajimu UMEMOTO serv.s_port = htons((u_int16_t)lp->port); 1138f62c4786SHajimu UMEMOTO serv.s_proto = lp->proto; 1139f62c4786SHajimu UMEMOTO return (&serv); 1140f62c4786SHajimu UMEMOTO } 1141f62c4786SHajimu UMEMOTO } 1142f62c4786SHajimu UMEMOTO return (0); 1143f62c4786SHajimu UMEMOTO } 1144f62c4786SHajimu UMEMOTO 1145f62c4786SHajimu UMEMOTO static struct protoent * 1146dde4a85dSHajimu UMEMOTO cgetprotobynumber(int proto) { /*%< Host byte order. */ 1147f62c4786SHajimu UMEMOTO struct valuelist **list = &protolist; 1148f62c4786SHajimu UMEMOTO struct valuelist *lp = *list; 1149f62c4786SHajimu UMEMOTO static struct protoent prot; 1150f62c4786SHajimu UMEMOTO 1151f62c4786SHajimu UMEMOTO for (; lp != NULL; lp = lp->next) 1152dde4a85dSHajimu UMEMOTO if (lp->port == proto) { /*%< Host byte order. */ 1153f62c4786SHajimu UMEMOTO if (lp != *list) { 1154f62c4786SHajimu UMEMOTO lp->prev->next = lp->next; 1155f62c4786SHajimu UMEMOTO if (lp->next) 1156f62c4786SHajimu UMEMOTO lp->next->prev = lp->prev; 1157f62c4786SHajimu UMEMOTO (*list)->prev = lp; 1158f62c4786SHajimu UMEMOTO lp->next = *list; 1159f62c4786SHajimu UMEMOTO *list = lp; 1160f62c4786SHajimu UMEMOTO } 1161f62c4786SHajimu UMEMOTO prot.p_name = lp->name; 1162dde4a85dSHajimu UMEMOTO prot.p_proto = lp->port; /*%< Host byte order. */ 1163f62c4786SHajimu UMEMOTO return (&prot); 1164f62c4786SHajimu UMEMOTO } 1165f62c4786SHajimu UMEMOTO return (0); 1166f62c4786SHajimu UMEMOTO } 1167f62c4786SHajimu UMEMOTO 1168f62c4786SHajimu UMEMOTO const char * 1169f62c4786SHajimu UMEMOTO res_protocolname(int num) { 1170f62c4786SHajimu UMEMOTO static char number[8]; 1171f62c4786SHajimu UMEMOTO struct protoent *pp; 1172f62c4786SHajimu UMEMOTO 1173f62c4786SHajimu UMEMOTO if (protolist == (struct valuelist *)0) 1174f62c4786SHajimu UMEMOTO res_buildprotolist(); 1175f62c4786SHajimu UMEMOTO pp = cgetprotobynumber(num); 1176f62c4786SHajimu UMEMOTO if (pp == 0) { 1177f62c4786SHajimu UMEMOTO (void) sprintf(number, "%d", num); 1178f62c4786SHajimu UMEMOTO return (number); 1179f62c4786SHajimu UMEMOTO } 1180f62c4786SHajimu UMEMOTO return (pp->p_name); 1181f62c4786SHajimu UMEMOTO } 1182f62c4786SHajimu UMEMOTO 1183f62c4786SHajimu UMEMOTO const char * 1184dde4a85dSHajimu UMEMOTO res_servicename(u_int16_t port, const char *proto) { /*%< Host byte order. */ 1185f62c4786SHajimu UMEMOTO static char number[8]; 1186f62c4786SHajimu UMEMOTO struct servent *ss; 1187f62c4786SHajimu UMEMOTO 1188f62c4786SHajimu UMEMOTO if (servicelist == (struct valuelist *)0) 1189f62c4786SHajimu UMEMOTO res_buildservicelist(); 1190f62c4786SHajimu UMEMOTO ss = cgetservbyport(htons(port), proto); 1191f62c4786SHajimu UMEMOTO if (ss == 0) { 1192f62c4786SHajimu UMEMOTO (void) sprintf(number, "%d", port); 1193f62c4786SHajimu UMEMOTO return (number); 1194f62c4786SHajimu UMEMOTO } 1195f62c4786SHajimu UMEMOTO return (ss->s_name); 1196f62c4786SHajimu UMEMOTO } 1197d808369aSHajimu UMEMOTO #endif 1198