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. */ 578a615d0fSEnji Cooper #ifndef DEBUG 58f62c4786SHajimu UMEMOTO #define DEBUG 598a615d0fSEnji Cooper #endif 60f62c4786SHajimu UMEMOTO #define MAXPORT 1024 61f62c4786SHajimu UMEMOTO 62f62c4786SHajimu UMEMOTO static int getnum_str(u_char **, u_char *); 63f62c4786SHajimu UMEMOTO static int gethexnum_str(u_char **, u_char *); 64f62c4786SHajimu UMEMOTO static int getword_str(char *, int, u_char **, u_char *); 65f62c4786SHajimu UMEMOTO static int getstr_str(char *, int, u_char **, u_char *); 66f62c4786SHajimu UMEMOTO 67f62c4786SHajimu UMEMOTO #define ShrinkBuffer(x) if ((buflen -= x) < 0) return (-2); 68f62c4786SHajimu UMEMOTO 69f62c4786SHajimu UMEMOTO /* Forward. */ 70f62c4786SHajimu UMEMOTO 71d808369aSHajimu UMEMOTO #ifdef _LIBC 72d808369aSHajimu UMEMOTO static 73d808369aSHajimu UMEMOTO #endif 74f62c4786SHajimu UMEMOTO int res_protocolnumber(const char *); 75d808369aSHajimu UMEMOTO #ifdef _LIBC 76d808369aSHajimu UMEMOTO static 77d808369aSHajimu UMEMOTO #endif 78f62c4786SHajimu UMEMOTO int res_servicenumber(const char *); 79f62c4786SHajimu UMEMOTO 80dde4a85dSHajimu UMEMOTO /*% 81f62c4786SHajimu UMEMOTO * Form update packets. 82f62c4786SHajimu UMEMOTO * Returns the size of the resulting packet if no error 83dde4a85dSHajimu UMEMOTO * 84f62c4786SHajimu UMEMOTO * On error, 85dde4a85dSHajimu UMEMOTO * returns 86dde4a85dSHajimu UMEMOTO *\li -1 if error in reading a word/number in rdata 87f62c4786SHajimu UMEMOTO * portion for update packets 88dde4a85dSHajimu UMEMOTO *\li -2 if length of buffer passed is insufficient 89dde4a85dSHajimu UMEMOTO *\li -3 if zone section is not the first section in 90f62c4786SHajimu UMEMOTO * the linked list, or section order has a problem 91dde4a85dSHajimu UMEMOTO *\li -4 on a number overflow 92dde4a85dSHajimu UMEMOTO *\li -5 unknown operation or no records 93f62c4786SHajimu UMEMOTO */ 94f62c4786SHajimu UMEMOTO int 95f62c4786SHajimu UMEMOTO res_nmkupdate(res_state statp, ns_updrec *rrecp_in, u_char *buf, int buflen) { 96f62c4786SHajimu UMEMOTO ns_updrec *rrecp_start = rrecp_in; 97f62c4786SHajimu UMEMOTO HEADER *hp; 98f62c4786SHajimu UMEMOTO u_char *cp, *sp2, *startp, *endp; 99f62c4786SHajimu UMEMOTO int n, i, soanum, multiline; 100f62c4786SHajimu UMEMOTO ns_updrec *rrecp; 101f62c4786SHajimu UMEMOTO struct in_addr ina; 102f62c4786SHajimu UMEMOTO struct in6_addr in6a; 103f62c4786SHajimu UMEMOTO char buf2[MAXDNAME]; 104f62c4786SHajimu UMEMOTO u_char buf3[MAXDNAME]; 105f62c4786SHajimu UMEMOTO int section, numrrs = 0, counts[ns_s_max]; 106f62c4786SHajimu UMEMOTO u_int16_t rtype, rclass; 107f62c4786SHajimu UMEMOTO u_int32_t n1, rttl; 108f62c4786SHajimu UMEMOTO u_char *dnptrs[20], **dpp, **lastdnptr; 109d808369aSHajimu UMEMOTO #ifndef _LIBC 110d808369aSHajimu UMEMOTO int siglen; 111d808369aSHajimu UMEMOTO #endif 112d808369aSHajimu UMEMOTO int keylen, certlen; 113f62c4786SHajimu UMEMOTO 114f62c4786SHajimu UMEMOTO /* 115f62c4786SHajimu UMEMOTO * Initialize header fields. 116f62c4786SHajimu UMEMOTO */ 117f62c4786SHajimu UMEMOTO if ((buf == NULL) || (buflen < HFIXEDSZ)) 118f62c4786SHajimu UMEMOTO return (-1); 119f62c4786SHajimu UMEMOTO memset(buf, 0, HFIXEDSZ); 120f62c4786SHajimu UMEMOTO hp = (HEADER *) buf; 121046c3635SPedro F. Giffuni statp->id = res_nrandomid(statp); 122046c3635SPedro F. Giffuni hp->id = htons(statp->id); 123f62c4786SHajimu UMEMOTO hp->opcode = ns_o_update; 124f62c4786SHajimu UMEMOTO hp->rcode = NOERROR; 125f62c4786SHajimu UMEMOTO cp = buf + HFIXEDSZ; 126f62c4786SHajimu UMEMOTO buflen -= HFIXEDSZ; 127f62c4786SHajimu UMEMOTO dpp = dnptrs; 128f62c4786SHajimu UMEMOTO *dpp++ = buf; 129f62c4786SHajimu UMEMOTO *dpp++ = NULL; 130f62c4786SHajimu UMEMOTO lastdnptr = dnptrs + sizeof dnptrs / sizeof dnptrs[0]; 131f62c4786SHajimu UMEMOTO 132f62c4786SHajimu UMEMOTO if (rrecp_start == NULL) 133f62c4786SHajimu UMEMOTO return (-5); 134f62c4786SHajimu UMEMOTO else if (rrecp_start->r_section != S_ZONE) 135f62c4786SHajimu UMEMOTO return (-3); 136f62c4786SHajimu UMEMOTO 137f62c4786SHajimu UMEMOTO memset(counts, 0, sizeof counts); 138f62c4786SHajimu UMEMOTO for (rrecp = rrecp_start; rrecp; rrecp = NEXT(rrecp, r_glink)) { 139f62c4786SHajimu UMEMOTO numrrs++; 140f62c4786SHajimu UMEMOTO section = rrecp->r_section; 141f62c4786SHajimu UMEMOTO if (section < 0 || section >= ns_s_max) 142f62c4786SHajimu UMEMOTO return (-1); 143f62c4786SHajimu UMEMOTO counts[section]++; 144f62c4786SHajimu UMEMOTO for (i = section + 1; i < ns_s_max; i++) 145f62c4786SHajimu UMEMOTO if (counts[i]) 146f62c4786SHajimu UMEMOTO return (-3); 147f62c4786SHajimu UMEMOTO rtype = rrecp->r_type; 148f62c4786SHajimu UMEMOTO rclass = rrecp->r_class; 149f62c4786SHajimu UMEMOTO rttl = rrecp->r_ttl; 150f62c4786SHajimu UMEMOTO /* overload class and type */ 151f62c4786SHajimu UMEMOTO if (section == S_PREREQ) { 152f62c4786SHajimu UMEMOTO rttl = 0; 153f62c4786SHajimu UMEMOTO switch (rrecp->r_opcode) { 154f62c4786SHajimu UMEMOTO case YXDOMAIN: 155f62c4786SHajimu UMEMOTO rclass = C_ANY; 156f62c4786SHajimu UMEMOTO rtype = T_ANY; 157f62c4786SHajimu UMEMOTO rrecp->r_size = 0; 158f62c4786SHajimu UMEMOTO break; 159f62c4786SHajimu UMEMOTO case NXDOMAIN: 160f62c4786SHajimu UMEMOTO rclass = C_NONE; 161f62c4786SHajimu UMEMOTO rtype = T_ANY; 162f62c4786SHajimu UMEMOTO rrecp->r_size = 0; 163f62c4786SHajimu UMEMOTO break; 164f62c4786SHajimu UMEMOTO case NXRRSET: 165f62c4786SHajimu UMEMOTO rclass = C_NONE; 166f62c4786SHajimu UMEMOTO rrecp->r_size = 0; 167f62c4786SHajimu UMEMOTO break; 168f62c4786SHajimu UMEMOTO case YXRRSET: 169f62c4786SHajimu UMEMOTO if (rrecp->r_size == 0) 170f62c4786SHajimu UMEMOTO rclass = C_ANY; 171f62c4786SHajimu UMEMOTO break; 172f62c4786SHajimu UMEMOTO default: 173f62c4786SHajimu UMEMOTO fprintf(stderr, 174f62c4786SHajimu UMEMOTO "res_mkupdate: incorrect opcode: %d\n", 175f62c4786SHajimu UMEMOTO rrecp->r_opcode); 176f62c4786SHajimu UMEMOTO fflush(stderr); 177f62c4786SHajimu UMEMOTO return (-1); 178f62c4786SHajimu UMEMOTO } 179f62c4786SHajimu UMEMOTO } else if (section == S_UPDATE) { 180f62c4786SHajimu UMEMOTO switch (rrecp->r_opcode) { 181f62c4786SHajimu UMEMOTO case DELETE: 182f62c4786SHajimu UMEMOTO rclass = rrecp->r_size == 0 ? C_ANY : C_NONE; 183f62c4786SHajimu UMEMOTO break; 184f62c4786SHajimu UMEMOTO case ADD: 185f62c4786SHajimu UMEMOTO break; 186f62c4786SHajimu UMEMOTO default: 187f62c4786SHajimu UMEMOTO fprintf(stderr, 188f62c4786SHajimu UMEMOTO "res_mkupdate: incorrect opcode: %d\n", 189f62c4786SHajimu UMEMOTO rrecp->r_opcode); 190f62c4786SHajimu UMEMOTO fflush(stderr); 191f62c4786SHajimu UMEMOTO return (-1); 192f62c4786SHajimu UMEMOTO } 193f62c4786SHajimu UMEMOTO } 194f62c4786SHajimu UMEMOTO 195f62c4786SHajimu UMEMOTO /* 196f62c4786SHajimu UMEMOTO * XXX appending default domain to owner name is omitted, 197f62c4786SHajimu UMEMOTO * fqdn must be provided 198f62c4786SHajimu UMEMOTO */ 199f62c4786SHajimu UMEMOTO if ((n = dn_comp(rrecp->r_dname, cp, buflen, dnptrs, 200f62c4786SHajimu UMEMOTO lastdnptr)) < 0) 201f62c4786SHajimu UMEMOTO return (-1); 202f62c4786SHajimu UMEMOTO cp += n; 203f62c4786SHajimu UMEMOTO ShrinkBuffer(n + 2*INT16SZ); 204f62c4786SHajimu UMEMOTO PUTSHORT(rtype, cp); 205f62c4786SHajimu UMEMOTO PUTSHORT(rclass, cp); 206f62c4786SHajimu UMEMOTO if (section == S_ZONE) { 207f62c4786SHajimu UMEMOTO if (numrrs != 1 || rrecp->r_type != T_SOA) 208f62c4786SHajimu UMEMOTO return (-3); 209f62c4786SHajimu UMEMOTO continue; 210f62c4786SHajimu UMEMOTO } 211f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ + INT16SZ); 212f62c4786SHajimu UMEMOTO PUTLONG(rttl, cp); 213dde4a85dSHajimu UMEMOTO sp2 = cp; /*%< save pointer to length byte */ 214f62c4786SHajimu UMEMOTO cp += INT16SZ; 215f62c4786SHajimu UMEMOTO if (rrecp->r_size == 0) { 216f62c4786SHajimu UMEMOTO if (section == S_UPDATE && rclass != C_ANY) 217f62c4786SHajimu UMEMOTO return (-1); 218f62c4786SHajimu UMEMOTO else { 219f62c4786SHajimu UMEMOTO PUTSHORT(0, sp2); 220f62c4786SHajimu UMEMOTO continue; 221f62c4786SHajimu UMEMOTO } 222f62c4786SHajimu UMEMOTO } 223f62c4786SHajimu UMEMOTO startp = rrecp->r_data; 224f62c4786SHajimu UMEMOTO endp = startp + rrecp->r_size - 1; 225f62c4786SHajimu UMEMOTO /* XXX this should be done centrally. */ 226f62c4786SHajimu UMEMOTO switch (rrecp->r_type) { 227f62c4786SHajimu UMEMOTO case T_A: 228f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 229f62c4786SHajimu UMEMOTO return (-1); 230f62c4786SHajimu UMEMOTO if (!inet_aton(buf2, &ina)) 231f62c4786SHajimu UMEMOTO return (-1); 232f62c4786SHajimu UMEMOTO n1 = ntohl(ina.s_addr); 233f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 234f62c4786SHajimu UMEMOTO PUTLONG(n1, cp); 235f62c4786SHajimu UMEMOTO break; 236f62c4786SHajimu UMEMOTO case T_CNAME: 237f62c4786SHajimu UMEMOTO case T_MB: 238f62c4786SHajimu UMEMOTO case T_MG: 239f62c4786SHajimu UMEMOTO case T_MR: 240f62c4786SHajimu UMEMOTO case T_NS: 241f62c4786SHajimu UMEMOTO case T_PTR: 242f62c4786SHajimu UMEMOTO case ns_t_dname: 243f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 244f62c4786SHajimu UMEMOTO return (-1); 245f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, dnptrs, lastdnptr); 246f62c4786SHajimu UMEMOTO if (n < 0) 247f62c4786SHajimu UMEMOTO return (-1); 248f62c4786SHajimu UMEMOTO cp += n; 249f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 250f62c4786SHajimu UMEMOTO break; 251f62c4786SHajimu UMEMOTO case T_MINFO: 252f62c4786SHajimu UMEMOTO case T_SOA: 253f62c4786SHajimu UMEMOTO case T_RP: 254f62c4786SHajimu UMEMOTO for (i = 0; i < 2; i++) { 255f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, 256f62c4786SHajimu UMEMOTO endp)) 257f62c4786SHajimu UMEMOTO return (-1); 258f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, 259f62c4786SHajimu UMEMOTO dnptrs, lastdnptr); 260f62c4786SHajimu UMEMOTO if (n < 0) 261f62c4786SHajimu UMEMOTO return (-1); 262f62c4786SHajimu UMEMOTO cp += n; 263f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 264f62c4786SHajimu UMEMOTO } 265f62c4786SHajimu UMEMOTO if (rrecp->r_type == T_SOA) { 266f62c4786SHajimu UMEMOTO ShrinkBuffer(5 * INT32SZ); 267f62c4786SHajimu UMEMOTO while (isspace(*startp) || !*startp) 268f62c4786SHajimu UMEMOTO startp++; 269f62c4786SHajimu UMEMOTO if (*startp == '(') { 270f62c4786SHajimu UMEMOTO multiline = 1; 271f62c4786SHajimu UMEMOTO startp++; 272f62c4786SHajimu UMEMOTO } else 273f62c4786SHajimu UMEMOTO multiline = 0; 274f62c4786SHajimu UMEMOTO /* serial, refresh, retry, expire, minimum */ 275f62c4786SHajimu UMEMOTO for (i = 0; i < 5; i++) { 276f62c4786SHajimu UMEMOTO soanum = getnum_str(&startp, endp); 277f62c4786SHajimu UMEMOTO if (soanum < 0) 278f62c4786SHajimu UMEMOTO return (-1); 279f62c4786SHajimu UMEMOTO PUTLONG(soanum, cp); 280f62c4786SHajimu UMEMOTO } 281f62c4786SHajimu UMEMOTO if (multiline) { 282f62c4786SHajimu UMEMOTO while (isspace(*startp) || !*startp) 283f62c4786SHajimu UMEMOTO startp++; 284f62c4786SHajimu UMEMOTO if (*startp != ')') 285f62c4786SHajimu UMEMOTO return (-1); 286f62c4786SHajimu UMEMOTO } 287f62c4786SHajimu UMEMOTO } 288f62c4786SHajimu UMEMOTO break; 289f62c4786SHajimu UMEMOTO case T_MX: 290f62c4786SHajimu UMEMOTO case T_AFSDB: 291f62c4786SHajimu UMEMOTO case T_RT: 292f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 293f62c4786SHajimu UMEMOTO if (n < 0) 294f62c4786SHajimu UMEMOTO return (-1); 295f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 296f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 297f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 298f62c4786SHajimu UMEMOTO return (-1); 299f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, dnptrs, lastdnptr); 300f62c4786SHajimu UMEMOTO if (n < 0) 301f62c4786SHajimu UMEMOTO return (-1); 302f62c4786SHajimu UMEMOTO cp += n; 303f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 304f62c4786SHajimu UMEMOTO break; 305f62c4786SHajimu UMEMOTO case T_SRV: 306f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 307f62c4786SHajimu UMEMOTO if (n < 0) 308f62c4786SHajimu UMEMOTO return (-1); 309f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 310f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 311f62c4786SHajimu UMEMOTO 312f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 313f62c4786SHajimu UMEMOTO if (n < 0) 314f62c4786SHajimu UMEMOTO return (-1); 315f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 316f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 317f62c4786SHajimu UMEMOTO 318f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 319f62c4786SHajimu UMEMOTO if (n < 0) 320f62c4786SHajimu UMEMOTO return (-1); 321f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 322f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 323f62c4786SHajimu UMEMOTO 324f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 325f62c4786SHajimu UMEMOTO return (-1); 326f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, NULL, NULL); 327f62c4786SHajimu UMEMOTO if (n < 0) 328f62c4786SHajimu UMEMOTO return (-1); 329f62c4786SHajimu UMEMOTO cp += n; 330f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 331f62c4786SHajimu UMEMOTO break; 332f62c4786SHajimu UMEMOTO case T_PX: 333f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 334f62c4786SHajimu UMEMOTO if (n < 0) 335f62c4786SHajimu UMEMOTO return (-1); 336f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 337f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 338f62c4786SHajimu UMEMOTO for (i = 0; i < 2; i++) { 339f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, 340f62c4786SHajimu UMEMOTO endp)) 341f62c4786SHajimu UMEMOTO return (-1); 342f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, dnptrs, 343f62c4786SHajimu UMEMOTO lastdnptr); 344f62c4786SHajimu UMEMOTO if (n < 0) 345f62c4786SHajimu UMEMOTO return (-1); 346f62c4786SHajimu UMEMOTO cp += n; 347f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 348f62c4786SHajimu UMEMOTO } 349f62c4786SHajimu UMEMOTO break; 350f62c4786SHajimu UMEMOTO case T_WKS: { 351f62c4786SHajimu UMEMOTO char bm[MAXPORT/8]; 352f62c4786SHajimu UMEMOTO unsigned int maxbm = 0; 353f62c4786SHajimu UMEMOTO 354f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 355f62c4786SHajimu UMEMOTO return (-1); 356f62c4786SHajimu UMEMOTO if (!inet_aton(buf2, &ina)) 357f62c4786SHajimu UMEMOTO return (-1); 358f62c4786SHajimu UMEMOTO n1 = ntohl(ina.s_addr); 359f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 360f62c4786SHajimu UMEMOTO PUTLONG(n1, cp); 361f62c4786SHajimu UMEMOTO 362f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 363f62c4786SHajimu UMEMOTO return (-1); 364f62c4786SHajimu UMEMOTO if ((i = res_protocolnumber(buf2)) < 0) 365f62c4786SHajimu UMEMOTO return (-1); 366f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 367f62c4786SHajimu UMEMOTO *cp++ = i & 0xff; 368f62c4786SHajimu UMEMOTO 369f62c4786SHajimu UMEMOTO for (i = 0; i < MAXPORT/8 ; i++) 370f62c4786SHajimu UMEMOTO bm[i] = 0; 371f62c4786SHajimu UMEMOTO 372f62c4786SHajimu UMEMOTO while (getword_str(buf2, sizeof buf2, &startp, endp)) { 373f62c4786SHajimu UMEMOTO if ((n = res_servicenumber(buf2)) <= 0) 374f62c4786SHajimu UMEMOTO return (-1); 375f62c4786SHajimu UMEMOTO 376f62c4786SHajimu UMEMOTO if (n < MAXPORT) { 377f62c4786SHajimu UMEMOTO bm[n/8] |= (0x80>>(n%8)); 378f62c4786SHajimu UMEMOTO if ((unsigned)n > maxbm) 379f62c4786SHajimu UMEMOTO maxbm = n; 380f62c4786SHajimu UMEMOTO } else 381f62c4786SHajimu UMEMOTO return (-1); 382f62c4786SHajimu UMEMOTO } 383f62c4786SHajimu UMEMOTO maxbm = maxbm/8 + 1; 384f62c4786SHajimu UMEMOTO ShrinkBuffer(maxbm); 385f62c4786SHajimu UMEMOTO memcpy(cp, bm, maxbm); 386f62c4786SHajimu UMEMOTO cp += maxbm; 387f62c4786SHajimu UMEMOTO break; 388f62c4786SHajimu UMEMOTO } 389f62c4786SHajimu UMEMOTO case T_HINFO: 390f62c4786SHajimu UMEMOTO for (i = 0; i < 2; i++) { 391f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 392f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 393f62c4786SHajimu UMEMOTO return (-1); 394f62c4786SHajimu UMEMOTO if (n > 255) 395f62c4786SHajimu UMEMOTO return (-1); 396f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 397f62c4786SHajimu UMEMOTO *cp++ = n; 398f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 399f62c4786SHajimu UMEMOTO cp += n; 400f62c4786SHajimu UMEMOTO } 401f62c4786SHajimu UMEMOTO break; 402f62c4786SHajimu UMEMOTO case T_TXT: 403f62c4786SHajimu UMEMOTO for (;;) { 404f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 405f62c4786SHajimu UMEMOTO &startp, endp)) < 0) { 406f62c4786SHajimu UMEMOTO if (cp != (sp2 + INT16SZ)) 407f62c4786SHajimu UMEMOTO break; 408f62c4786SHajimu UMEMOTO return (-1); 409f62c4786SHajimu UMEMOTO } 410f62c4786SHajimu UMEMOTO if (n > 255) 411f62c4786SHajimu UMEMOTO return (-1); 412f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 413f62c4786SHajimu UMEMOTO *cp++ = n; 414f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 415f62c4786SHajimu UMEMOTO cp += n; 416f62c4786SHajimu UMEMOTO } 417f62c4786SHajimu UMEMOTO break; 418f62c4786SHajimu UMEMOTO case T_X25: 419f62c4786SHajimu UMEMOTO /* RFC1183 */ 420f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, &startp, 421f62c4786SHajimu UMEMOTO endp)) < 0) 422f62c4786SHajimu UMEMOTO return (-1); 423f62c4786SHajimu UMEMOTO if (n > 255) 424f62c4786SHajimu UMEMOTO return (-1); 425f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 426f62c4786SHajimu UMEMOTO *cp++ = n; 427f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 428f62c4786SHajimu UMEMOTO cp += n; 429f62c4786SHajimu UMEMOTO break; 430f62c4786SHajimu UMEMOTO case T_ISDN: 431f62c4786SHajimu UMEMOTO /* RFC1183 */ 432f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, &startp, 433f62c4786SHajimu UMEMOTO endp)) < 0) 434f62c4786SHajimu UMEMOTO return (-1); 435f62c4786SHajimu UMEMOTO if ((n > 255) || (n == 0)) 436f62c4786SHajimu UMEMOTO return (-1); 437f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 438f62c4786SHajimu UMEMOTO *cp++ = n; 439f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 440f62c4786SHajimu UMEMOTO cp += n; 441f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, &startp, 442f62c4786SHajimu UMEMOTO endp)) < 0) 443f62c4786SHajimu UMEMOTO n = 0; 444f62c4786SHajimu UMEMOTO if (n > 255) 445f62c4786SHajimu UMEMOTO return (-1); 446f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 447f62c4786SHajimu UMEMOTO *cp++ = n; 448f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 449f62c4786SHajimu UMEMOTO cp += n; 450f62c4786SHajimu UMEMOTO break; 451f62c4786SHajimu UMEMOTO case T_NSAP: 452f62c4786SHajimu UMEMOTO if ((n = inet_nsap_addr((char *)startp, (u_char *)buf2, sizeof(buf2))) != 0) { 453f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 454f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 455f62c4786SHajimu UMEMOTO cp += n; 456f62c4786SHajimu UMEMOTO } else { 457f62c4786SHajimu UMEMOTO return (-1); 458f62c4786SHajimu UMEMOTO } 459f62c4786SHajimu UMEMOTO break; 460f62c4786SHajimu UMEMOTO case T_LOC: 461f62c4786SHajimu UMEMOTO if ((n = loc_aton((char *)startp, (u_char *)buf2)) != 0) { 462f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 463f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 464f62c4786SHajimu UMEMOTO cp += n; 465f62c4786SHajimu UMEMOTO } else 466f62c4786SHajimu UMEMOTO return (-1); 467f62c4786SHajimu UMEMOTO break; 468f62c4786SHajimu UMEMOTO case ns_t_sig: 469d808369aSHajimu UMEMOTO #ifdef _LIBC 470d808369aSHajimu UMEMOTO return (-1); 471d808369aSHajimu UMEMOTO #else 472f62c4786SHajimu UMEMOTO { 473f62c4786SHajimu UMEMOTO int sig_type, success, dateerror; 474f62c4786SHajimu UMEMOTO u_int32_t exptime, timesigned; 475f62c4786SHajimu UMEMOTO 476f62c4786SHajimu UMEMOTO /* type */ 477f62c4786SHajimu UMEMOTO if ((n = getword_str(buf2, sizeof buf2, 478f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 479f62c4786SHajimu UMEMOTO return (-1); 480f62c4786SHajimu UMEMOTO sig_type = sym_ston(__p_type_syms, buf2, &success); 481f62c4786SHajimu UMEMOTO if (!success || sig_type == ns_t_any) 482f62c4786SHajimu UMEMOTO return (-1); 483f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 484f62c4786SHajimu UMEMOTO PUTSHORT(sig_type, cp); 485f62c4786SHajimu UMEMOTO /* alg */ 486f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 487f62c4786SHajimu UMEMOTO if (n < 0) 488f62c4786SHajimu UMEMOTO return (-1); 489f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 490f62c4786SHajimu UMEMOTO *cp++ = n; 491f62c4786SHajimu UMEMOTO /* labels */ 492f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 493f62c4786SHajimu UMEMOTO if (n <= 0 || n > 255) 494f62c4786SHajimu UMEMOTO return (-1); 495f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 496f62c4786SHajimu UMEMOTO *cp++ = n; 497f62c4786SHajimu UMEMOTO /* ottl & expire */ 498f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 499f62c4786SHajimu UMEMOTO return (-1); 500f62c4786SHajimu UMEMOTO exptime = ns_datetosecs(buf2, &dateerror); 501f62c4786SHajimu UMEMOTO if (!dateerror) { 502f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 503f62c4786SHajimu UMEMOTO PUTLONG(rttl, cp); 504f62c4786SHajimu UMEMOTO } 505f62c4786SHajimu UMEMOTO else { 506f62c4786SHajimu UMEMOTO char *ulendp; 507f62c4786SHajimu UMEMOTO u_int32_t ottl; 508f62c4786SHajimu UMEMOTO 509f62c4786SHajimu UMEMOTO errno = 0; 510f62c4786SHajimu UMEMOTO ottl = strtoul(buf2, &ulendp, 10); 511f62c4786SHajimu UMEMOTO if (errno != 0 || 512f62c4786SHajimu UMEMOTO (ulendp != NULL && *ulendp != '\0')) 513f62c4786SHajimu UMEMOTO return (-1); 514f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 515f62c4786SHajimu UMEMOTO PUTLONG(ottl, cp); 516f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, 517f62c4786SHajimu UMEMOTO endp)) 518f62c4786SHajimu UMEMOTO return (-1); 519f62c4786SHajimu UMEMOTO exptime = ns_datetosecs(buf2, &dateerror); 520f62c4786SHajimu UMEMOTO if (dateerror) 521f62c4786SHajimu UMEMOTO return (-1); 522f62c4786SHajimu UMEMOTO } 523f62c4786SHajimu UMEMOTO /* expire */ 524f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 525f62c4786SHajimu UMEMOTO PUTLONG(exptime, cp); 526f62c4786SHajimu UMEMOTO /* timesigned */ 527f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 528f62c4786SHajimu UMEMOTO return (-1); 529f62c4786SHajimu UMEMOTO timesigned = ns_datetosecs(buf2, &dateerror); 530f62c4786SHajimu UMEMOTO if (!dateerror) { 531f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 532f62c4786SHajimu UMEMOTO PUTLONG(timesigned, cp); 533f62c4786SHajimu UMEMOTO } 534f62c4786SHajimu UMEMOTO else 535f62c4786SHajimu UMEMOTO return (-1); 536f62c4786SHajimu UMEMOTO /* footprint */ 537f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 538f62c4786SHajimu UMEMOTO if (n < 0) 539f62c4786SHajimu UMEMOTO return (-1); 540f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 541f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 542f62c4786SHajimu UMEMOTO /* signer name */ 543f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 544f62c4786SHajimu UMEMOTO return (-1); 545f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, dnptrs, lastdnptr); 546f62c4786SHajimu UMEMOTO if (n < 0) 547f62c4786SHajimu UMEMOTO return (-1); 548f62c4786SHajimu UMEMOTO cp += n; 549f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 550f62c4786SHajimu UMEMOTO /* sig */ 551f62c4786SHajimu UMEMOTO if ((n = getword_str(buf2, sizeof buf2, 552f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 553f62c4786SHajimu UMEMOTO return (-1); 554f62c4786SHajimu UMEMOTO siglen = b64_pton(buf2, buf3, sizeof(buf3)); 555f62c4786SHajimu UMEMOTO if (siglen < 0) 556f62c4786SHajimu UMEMOTO return (-1); 557f62c4786SHajimu UMEMOTO ShrinkBuffer(siglen); 558f62c4786SHajimu UMEMOTO memcpy(cp, buf3, siglen); 559f62c4786SHajimu UMEMOTO cp += siglen; 560f62c4786SHajimu UMEMOTO break; 561f62c4786SHajimu UMEMOTO } 562d808369aSHajimu UMEMOTO #endif 563f62c4786SHajimu UMEMOTO case ns_t_key: 564f62c4786SHajimu UMEMOTO /* flags */ 565f62c4786SHajimu UMEMOTO n = gethexnum_str(&startp, endp); 566f62c4786SHajimu UMEMOTO if (n < 0) 567f62c4786SHajimu UMEMOTO return (-1); 568f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 569f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 570f62c4786SHajimu UMEMOTO /* proto */ 571f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 572f62c4786SHajimu UMEMOTO if (n < 0) 573f62c4786SHajimu UMEMOTO return (-1); 574f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 575f62c4786SHajimu UMEMOTO *cp++ = n; 576f62c4786SHajimu UMEMOTO /* alg */ 577f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 578f62c4786SHajimu UMEMOTO if (n < 0) 579f62c4786SHajimu UMEMOTO return (-1); 580f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 581f62c4786SHajimu UMEMOTO *cp++ = n; 582f62c4786SHajimu UMEMOTO /* key */ 583f62c4786SHajimu UMEMOTO if ((n = getword_str(buf2, sizeof buf2, 584f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 585f62c4786SHajimu UMEMOTO return (-1); 586f62c4786SHajimu UMEMOTO keylen = b64_pton(buf2, buf3, sizeof(buf3)); 587f62c4786SHajimu UMEMOTO if (keylen < 0) 588f62c4786SHajimu UMEMOTO return (-1); 589f62c4786SHajimu UMEMOTO ShrinkBuffer(keylen); 590f62c4786SHajimu UMEMOTO memcpy(cp, buf3, keylen); 591f62c4786SHajimu UMEMOTO cp += keylen; 592f62c4786SHajimu UMEMOTO break; 593f62c4786SHajimu UMEMOTO case ns_t_nxt: 594f62c4786SHajimu UMEMOTO { 595f62c4786SHajimu UMEMOTO int success, nxt_type; 596f62c4786SHajimu UMEMOTO u_char data[32]; 597f62c4786SHajimu UMEMOTO int maxtype; 598f62c4786SHajimu UMEMOTO 599f62c4786SHajimu UMEMOTO /* next name */ 600f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 601f62c4786SHajimu UMEMOTO return (-1); 602f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, NULL, NULL); 603f62c4786SHajimu UMEMOTO if (n < 0) 604f62c4786SHajimu UMEMOTO return (-1); 605f62c4786SHajimu UMEMOTO cp += n; 606f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 607f62c4786SHajimu UMEMOTO maxtype = 0; 608f62c4786SHajimu UMEMOTO memset(data, 0, sizeof data); 609f62c4786SHajimu UMEMOTO for (;;) { 610f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, 611f62c4786SHajimu UMEMOTO endp)) 612f62c4786SHajimu UMEMOTO break; 613f62c4786SHajimu UMEMOTO nxt_type = sym_ston(__p_type_syms, buf2, 614f62c4786SHajimu UMEMOTO &success); 615f62c4786SHajimu UMEMOTO if (!success || !ns_t_rr_p(nxt_type)) 616f62c4786SHajimu UMEMOTO return (-1); 617f62c4786SHajimu UMEMOTO NS_NXT_BIT_SET(nxt_type, data); 618f62c4786SHajimu UMEMOTO if (nxt_type > maxtype) 619f62c4786SHajimu UMEMOTO maxtype = nxt_type; 620f62c4786SHajimu UMEMOTO } 621f62c4786SHajimu UMEMOTO n = maxtype/NS_NXT_BITS+1; 622f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 623f62c4786SHajimu UMEMOTO memcpy(cp, data, n); 624f62c4786SHajimu UMEMOTO cp += n; 625f62c4786SHajimu UMEMOTO break; 626f62c4786SHajimu UMEMOTO } 627f62c4786SHajimu UMEMOTO case ns_t_cert: 628f62c4786SHajimu UMEMOTO /* type */ 629f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 630f62c4786SHajimu UMEMOTO if (n < 0) 631f62c4786SHajimu UMEMOTO return (-1); 632f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 633f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 634f62c4786SHajimu UMEMOTO /* key tag */ 635f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 636f62c4786SHajimu UMEMOTO if (n < 0) 637f62c4786SHajimu UMEMOTO return (-1); 638f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 639f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 640f62c4786SHajimu UMEMOTO /* alg */ 641f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 642f62c4786SHajimu UMEMOTO if (n < 0) 643f62c4786SHajimu UMEMOTO return (-1); 644f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 645f62c4786SHajimu UMEMOTO *cp++ = n; 646f62c4786SHajimu UMEMOTO /* cert */ 647f62c4786SHajimu UMEMOTO if ((n = getword_str(buf2, sizeof buf2, 648f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 649f62c4786SHajimu UMEMOTO return (-1); 650f62c4786SHajimu UMEMOTO certlen = b64_pton(buf2, buf3, sizeof(buf3)); 651f62c4786SHajimu UMEMOTO if (certlen < 0) 652f62c4786SHajimu UMEMOTO return (-1); 653f62c4786SHajimu UMEMOTO ShrinkBuffer(certlen); 654f62c4786SHajimu UMEMOTO memcpy(cp, buf3, certlen); 655f62c4786SHajimu UMEMOTO cp += certlen; 656f62c4786SHajimu UMEMOTO break; 657f62c4786SHajimu UMEMOTO case ns_t_aaaa: 658f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 659f62c4786SHajimu UMEMOTO return (-1); 660f62c4786SHajimu UMEMOTO if (inet_pton(AF_INET6, buf2, &in6a) <= 0) 661f62c4786SHajimu UMEMOTO return (-1); 662f62c4786SHajimu UMEMOTO ShrinkBuffer(NS_IN6ADDRSZ); 663f62c4786SHajimu UMEMOTO memcpy(cp, &in6a, NS_IN6ADDRSZ); 664f62c4786SHajimu UMEMOTO cp += NS_IN6ADDRSZ; 665f62c4786SHajimu UMEMOTO break; 666f62c4786SHajimu UMEMOTO case ns_t_naptr: 667f62c4786SHajimu UMEMOTO /* Order Preference Flags Service Replacement Regexp */ 668f62c4786SHajimu UMEMOTO /* Order */ 669f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 670f62c4786SHajimu UMEMOTO if (n < 0 || n > 65535) 671f62c4786SHajimu UMEMOTO return (-1); 672f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 673f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 674f62c4786SHajimu UMEMOTO /* Preference */ 675f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 676f62c4786SHajimu UMEMOTO if (n < 0 || n > 65535) 677f62c4786SHajimu UMEMOTO return (-1); 678f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 679f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 680f62c4786SHajimu UMEMOTO /* Flags */ 681f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 682f62c4786SHajimu UMEMOTO &startp, endp)) < 0) { 683f62c4786SHajimu UMEMOTO return (-1); 684f62c4786SHajimu UMEMOTO } 685f62c4786SHajimu UMEMOTO if (n > 255) 686f62c4786SHajimu UMEMOTO return (-1); 687f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 688f62c4786SHajimu UMEMOTO *cp++ = n; 689f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 690f62c4786SHajimu UMEMOTO cp += n; 691f62c4786SHajimu UMEMOTO /* Service Classes */ 692f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 693f62c4786SHajimu UMEMOTO &startp, endp)) < 0) { 694f62c4786SHajimu UMEMOTO return (-1); 695f62c4786SHajimu UMEMOTO } 696f62c4786SHajimu UMEMOTO if (n > 255) 697f62c4786SHajimu UMEMOTO return (-1); 698f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 699f62c4786SHajimu UMEMOTO *cp++ = n; 700f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 701f62c4786SHajimu UMEMOTO cp += n; 702f62c4786SHajimu UMEMOTO /* Pattern */ 703f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 704f62c4786SHajimu UMEMOTO &startp, endp)) < 0) { 705f62c4786SHajimu UMEMOTO return (-1); 706f62c4786SHajimu UMEMOTO } 707f62c4786SHajimu UMEMOTO if (n > 255) 708f62c4786SHajimu UMEMOTO return (-1); 709f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 710f62c4786SHajimu UMEMOTO *cp++ = n; 711f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 712f62c4786SHajimu UMEMOTO cp += n; 713f62c4786SHajimu UMEMOTO /* Replacement */ 714f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 715f62c4786SHajimu UMEMOTO return (-1); 716f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, NULL, NULL); 717f62c4786SHajimu UMEMOTO if (n < 0) 718f62c4786SHajimu UMEMOTO return (-1); 719f62c4786SHajimu UMEMOTO cp += n; 720f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 721f62c4786SHajimu UMEMOTO break; 722f62c4786SHajimu UMEMOTO default: 723f62c4786SHajimu UMEMOTO return (-1); 724f62c4786SHajimu UMEMOTO } /*switch*/ 725f62c4786SHajimu UMEMOTO n = (u_int16_t)((cp - sp2) - INT16SZ); 726f62c4786SHajimu UMEMOTO PUTSHORT(n, sp2); 727f62c4786SHajimu UMEMOTO } /*for*/ 728f62c4786SHajimu UMEMOTO 729f62c4786SHajimu UMEMOTO hp->qdcount = htons(counts[0]); 730f62c4786SHajimu UMEMOTO hp->ancount = htons(counts[1]); 731f62c4786SHajimu UMEMOTO hp->nscount = htons(counts[2]); 732f62c4786SHajimu UMEMOTO hp->arcount = htons(counts[3]); 733f62c4786SHajimu UMEMOTO return (cp - buf); 734f62c4786SHajimu UMEMOTO } 735f62c4786SHajimu UMEMOTO 736dde4a85dSHajimu UMEMOTO /*% 737f62c4786SHajimu UMEMOTO * Get a whitespace delimited word from a string (not file) 738f62c4786SHajimu UMEMOTO * into buf. modify the start pointer to point after the 739f62c4786SHajimu UMEMOTO * word in the string. 740f62c4786SHajimu UMEMOTO */ 741f62c4786SHajimu UMEMOTO static int 742f62c4786SHajimu UMEMOTO getword_str(char *buf, int size, u_char **startpp, u_char *endp) { 743f62c4786SHajimu UMEMOTO char *cp; 744f62c4786SHajimu UMEMOTO int c; 745f62c4786SHajimu UMEMOTO 746f62c4786SHajimu UMEMOTO for (cp = buf; *startpp <= endp; ) { 747f62c4786SHajimu UMEMOTO c = **startpp; 748f62c4786SHajimu UMEMOTO if (isspace(c) || c == '\0') { 749dde4a85dSHajimu UMEMOTO if (cp != buf) /*%< trailing whitespace */ 750f62c4786SHajimu UMEMOTO break; 751dde4a85dSHajimu UMEMOTO else { /*%< leading whitespace */ 752f62c4786SHajimu UMEMOTO (*startpp)++; 753f62c4786SHajimu UMEMOTO continue; 754f62c4786SHajimu UMEMOTO } 755f62c4786SHajimu UMEMOTO } 756f62c4786SHajimu UMEMOTO (*startpp)++; 757f62c4786SHajimu UMEMOTO if (cp >= buf+size-1) 758f62c4786SHajimu UMEMOTO break; 759f62c4786SHajimu UMEMOTO *cp++ = (u_char)c; 760f62c4786SHajimu UMEMOTO } 761f62c4786SHajimu UMEMOTO *cp = '\0'; 762f62c4786SHajimu UMEMOTO return (cp != buf); 763f62c4786SHajimu UMEMOTO } 764f62c4786SHajimu UMEMOTO 765dde4a85dSHajimu UMEMOTO /*% 766f62c4786SHajimu UMEMOTO * get a white spae delimited string from memory. Process quoted strings 767dde4a85dSHajimu UMEMOTO * and \\DDD escapes. Return length or -1 on error. Returned string may 768f62c4786SHajimu UMEMOTO * contain nulls. 769f62c4786SHajimu UMEMOTO */ 770f62c4786SHajimu UMEMOTO static char digits[] = "0123456789"; 771f62c4786SHajimu UMEMOTO static int 772f62c4786SHajimu UMEMOTO getstr_str(char *buf, int size, u_char **startpp, u_char *endp) { 773f62c4786SHajimu UMEMOTO char *cp; 774f62c4786SHajimu UMEMOTO int c, c1 = 0; 775f62c4786SHajimu UMEMOTO int inquote = 0; 776f62c4786SHajimu UMEMOTO int seen_quote = 0; 777f62c4786SHajimu UMEMOTO int escape = 0; 778f62c4786SHajimu UMEMOTO int dig = 0; 779f62c4786SHajimu UMEMOTO 780f62c4786SHajimu UMEMOTO for (cp = buf; *startpp <= endp; ) { 781f62c4786SHajimu UMEMOTO if ((c = **startpp) == '\0') 782f62c4786SHajimu UMEMOTO break; 783f62c4786SHajimu UMEMOTO /* leading white space */ 784f62c4786SHajimu UMEMOTO if ((cp == buf) && !seen_quote && isspace(c)) { 785f62c4786SHajimu UMEMOTO (*startpp)++; 786f62c4786SHajimu UMEMOTO continue; 787f62c4786SHajimu UMEMOTO } 788f62c4786SHajimu UMEMOTO 789f62c4786SHajimu UMEMOTO switch (c) { 790f62c4786SHajimu UMEMOTO case '\\': 791f62c4786SHajimu UMEMOTO if (!escape) { 792f62c4786SHajimu UMEMOTO escape = 1; 793f62c4786SHajimu UMEMOTO dig = 0; 794f62c4786SHajimu UMEMOTO c1 = 0; 795f62c4786SHajimu UMEMOTO (*startpp)++; 796f62c4786SHajimu UMEMOTO continue; 797f62c4786SHajimu UMEMOTO } 798f62c4786SHajimu UMEMOTO goto do_escape; 799f62c4786SHajimu UMEMOTO case '"': 800f62c4786SHajimu UMEMOTO if (!escape) { 801f62c4786SHajimu UMEMOTO inquote = !inquote; 802f62c4786SHajimu UMEMOTO seen_quote = 1; 803f62c4786SHajimu UMEMOTO (*startpp)++; 804f62c4786SHajimu UMEMOTO continue; 805f62c4786SHajimu UMEMOTO } 806f62c4786SHajimu UMEMOTO /* fall through */ 807f62c4786SHajimu UMEMOTO default: 808f62c4786SHajimu UMEMOTO do_escape: 809f62c4786SHajimu UMEMOTO if (escape) { 810f62c4786SHajimu UMEMOTO switch (c) { 811f62c4786SHajimu UMEMOTO case '0': 812f62c4786SHajimu UMEMOTO case '1': 813f62c4786SHajimu UMEMOTO case '2': 814f62c4786SHajimu UMEMOTO case '3': 815f62c4786SHajimu UMEMOTO case '4': 816f62c4786SHajimu UMEMOTO case '5': 817f62c4786SHajimu UMEMOTO case '6': 818f62c4786SHajimu UMEMOTO case '7': 819f62c4786SHajimu UMEMOTO case '8': 820f62c4786SHajimu UMEMOTO case '9': 821f62c4786SHajimu UMEMOTO c1 = c1 * 10 + 822f62c4786SHajimu UMEMOTO (strchr(digits, c) - digits); 823f62c4786SHajimu UMEMOTO 824f62c4786SHajimu UMEMOTO if (++dig == 3) { 825f62c4786SHajimu UMEMOTO c = c1 &0xff; 826f62c4786SHajimu UMEMOTO break; 827f62c4786SHajimu UMEMOTO } 828f62c4786SHajimu UMEMOTO (*startpp)++; 829f62c4786SHajimu UMEMOTO continue; 830f62c4786SHajimu UMEMOTO } 831f62c4786SHajimu UMEMOTO escape = 0; 832f62c4786SHajimu UMEMOTO } else if (!inquote && isspace(c)) 833f62c4786SHajimu UMEMOTO goto done; 834f62c4786SHajimu UMEMOTO if (cp >= buf+size-1) 835f62c4786SHajimu UMEMOTO goto done; 836f62c4786SHajimu UMEMOTO *cp++ = (u_char)c; 837f62c4786SHajimu UMEMOTO (*startpp)++; 838f62c4786SHajimu UMEMOTO } 839f62c4786SHajimu UMEMOTO } 840f62c4786SHajimu UMEMOTO done: 841f62c4786SHajimu UMEMOTO *cp = '\0'; 842f62c4786SHajimu UMEMOTO return ((cp == buf)? (seen_quote? 0: -1): (cp - buf)); 843f62c4786SHajimu UMEMOTO } 844dde4a85dSHajimu UMEMOTO 845dde4a85dSHajimu UMEMOTO /*% 846f62c4786SHajimu UMEMOTO * Get a whitespace delimited base 16 number from a string (not file) into buf 847f62c4786SHajimu UMEMOTO * update the start pointer to point after the number in the string. 848f62c4786SHajimu UMEMOTO */ 849f62c4786SHajimu UMEMOTO static int 850f62c4786SHajimu UMEMOTO gethexnum_str(u_char **startpp, u_char *endp) { 851f62c4786SHajimu UMEMOTO int c, n; 852f62c4786SHajimu UMEMOTO int seendigit = 0; 853f62c4786SHajimu UMEMOTO int m = 0; 854f62c4786SHajimu UMEMOTO 855f62c4786SHajimu UMEMOTO if (*startpp + 2 >= endp || strncasecmp((char *)*startpp, "0x", 2) != 0) 856f62c4786SHajimu UMEMOTO return getnum_str(startpp, endp); 857f62c4786SHajimu UMEMOTO (*startpp)+=2; 858f62c4786SHajimu UMEMOTO for (n = 0; *startpp <= endp; ) { 859f62c4786SHajimu UMEMOTO c = **startpp; 860f62c4786SHajimu UMEMOTO if (isspace(c) || c == '\0') { 861dde4a85dSHajimu UMEMOTO if (seendigit) /*%< trailing whitespace */ 862f62c4786SHajimu UMEMOTO break; 863dde4a85dSHajimu UMEMOTO else { /*%< leading whitespace */ 864f62c4786SHajimu UMEMOTO (*startpp)++; 865f62c4786SHajimu UMEMOTO continue; 866f62c4786SHajimu UMEMOTO } 867f62c4786SHajimu UMEMOTO } 868f62c4786SHajimu UMEMOTO if (c == ';') { 869f62c4786SHajimu UMEMOTO while ((*startpp <= endp) && 870f62c4786SHajimu UMEMOTO ((c = **startpp) != '\n')) 871f62c4786SHajimu UMEMOTO (*startpp)++; 872f62c4786SHajimu UMEMOTO if (seendigit) 873f62c4786SHajimu UMEMOTO break; 874f62c4786SHajimu UMEMOTO continue; 875f62c4786SHajimu UMEMOTO } 876f62c4786SHajimu UMEMOTO if (!isxdigit(c)) { 877f62c4786SHajimu UMEMOTO if (c == ')' && seendigit) { 878f62c4786SHajimu UMEMOTO (*startpp)--; 879f62c4786SHajimu UMEMOTO break; 880f62c4786SHajimu UMEMOTO } 881f62c4786SHajimu UMEMOTO return (-1); 882f62c4786SHajimu UMEMOTO } 883f62c4786SHajimu UMEMOTO (*startpp)++; 884f62c4786SHajimu UMEMOTO if (isdigit(c)) 885f62c4786SHajimu UMEMOTO n = n * 16 + (c - '0'); 886f62c4786SHajimu UMEMOTO else 887f62c4786SHajimu UMEMOTO n = n * 16 + (tolower(c) - 'a' + 10); 888f62c4786SHajimu UMEMOTO seendigit = 1; 889f62c4786SHajimu UMEMOTO } 890f62c4786SHajimu UMEMOTO return (n + m); 891f62c4786SHajimu UMEMOTO } 892f62c4786SHajimu UMEMOTO 893dde4a85dSHajimu UMEMOTO /*% 894f62c4786SHajimu UMEMOTO * Get a whitespace delimited base 10 number from a string (not file) into buf 895f62c4786SHajimu UMEMOTO * update the start pointer to point after the number in the string. 896f62c4786SHajimu UMEMOTO */ 897f62c4786SHajimu UMEMOTO static int 898f62c4786SHajimu UMEMOTO getnum_str(u_char **startpp, u_char *endp) { 899f62c4786SHajimu UMEMOTO int c, n; 900f62c4786SHajimu UMEMOTO int seendigit = 0; 901f62c4786SHajimu UMEMOTO int m = 0; 902f62c4786SHajimu UMEMOTO 903f62c4786SHajimu UMEMOTO for (n = 0; *startpp <= endp; ) { 904f62c4786SHajimu UMEMOTO c = **startpp; 905f62c4786SHajimu UMEMOTO if (isspace(c) || c == '\0') { 906dde4a85dSHajimu UMEMOTO if (seendigit) /*%< trailing whitespace */ 907f62c4786SHajimu UMEMOTO break; 908dde4a85dSHajimu UMEMOTO else { /*%< leading whitespace */ 909f62c4786SHajimu UMEMOTO (*startpp)++; 910f62c4786SHajimu UMEMOTO continue; 911f62c4786SHajimu UMEMOTO } 912f62c4786SHajimu UMEMOTO } 913f62c4786SHajimu UMEMOTO if (c == ';') { 914f62c4786SHajimu UMEMOTO while ((*startpp <= endp) && 915f62c4786SHajimu UMEMOTO ((c = **startpp) != '\n')) 916f62c4786SHajimu UMEMOTO (*startpp)++; 917f62c4786SHajimu UMEMOTO if (seendigit) 918f62c4786SHajimu UMEMOTO break; 919f62c4786SHajimu UMEMOTO continue; 920f62c4786SHajimu UMEMOTO } 921f62c4786SHajimu UMEMOTO if (!isdigit(c)) { 922f62c4786SHajimu UMEMOTO if (c == ')' && seendigit) { 923f62c4786SHajimu UMEMOTO (*startpp)--; 924f62c4786SHajimu UMEMOTO break; 925f62c4786SHajimu UMEMOTO } 926f62c4786SHajimu UMEMOTO return (-1); 927f62c4786SHajimu UMEMOTO } 928f62c4786SHajimu UMEMOTO (*startpp)++; 929f62c4786SHajimu UMEMOTO n = n * 10 + (c - '0'); 930f62c4786SHajimu UMEMOTO seendigit = 1; 931f62c4786SHajimu UMEMOTO } 932f62c4786SHajimu UMEMOTO return (n + m); 933f62c4786SHajimu UMEMOTO } 934f62c4786SHajimu UMEMOTO 935dde4a85dSHajimu UMEMOTO /*% 936f62c4786SHajimu UMEMOTO * Allocate a resource record buffer & save rr info. 937f62c4786SHajimu UMEMOTO */ 938f62c4786SHajimu UMEMOTO ns_updrec * 939f62c4786SHajimu UMEMOTO res_mkupdrec(int section, const char *dname, 940f62c4786SHajimu UMEMOTO u_int class, u_int type, u_long ttl) { 941f62c4786SHajimu UMEMOTO ns_updrec *rrecp = (ns_updrec *)calloc(1, sizeof(ns_updrec)); 942f62c4786SHajimu UMEMOTO 943f62c4786SHajimu UMEMOTO if (!rrecp || !(rrecp->r_dname = strdup(dname))) { 944f62c4786SHajimu UMEMOTO if (rrecp) 945f62c4786SHajimu UMEMOTO free((char *)rrecp); 946f62c4786SHajimu UMEMOTO return (NULL); 947f62c4786SHajimu UMEMOTO } 948f62c4786SHajimu UMEMOTO INIT_LINK(rrecp, r_link); 949f62c4786SHajimu UMEMOTO INIT_LINK(rrecp, r_glink); 950f62c4786SHajimu UMEMOTO rrecp->r_class = (ns_class)class; 951f62c4786SHajimu UMEMOTO rrecp->r_type = (ns_type)type; 952f62c4786SHajimu UMEMOTO rrecp->r_ttl = ttl; 953f62c4786SHajimu UMEMOTO rrecp->r_section = (ns_sect)section; 954f62c4786SHajimu UMEMOTO return (rrecp); 955f62c4786SHajimu UMEMOTO } 956f62c4786SHajimu UMEMOTO 957dde4a85dSHajimu UMEMOTO /*% 958f62c4786SHajimu UMEMOTO * Free a resource record buffer created by res_mkupdrec. 959f62c4786SHajimu UMEMOTO */ 960f62c4786SHajimu UMEMOTO void 961f62c4786SHajimu UMEMOTO res_freeupdrec(ns_updrec *rrecp) { 962f62c4786SHajimu UMEMOTO /* Note: freeing r_dp is the caller's responsibility. */ 963f62c4786SHajimu UMEMOTO if (rrecp->r_dname != NULL) 964f62c4786SHajimu UMEMOTO free(rrecp->r_dname); 965f62c4786SHajimu UMEMOTO free(rrecp); 966f62c4786SHajimu UMEMOTO } 967f62c4786SHajimu UMEMOTO 968f62c4786SHajimu UMEMOTO struct valuelist { 969f62c4786SHajimu UMEMOTO struct valuelist * next; 970f62c4786SHajimu UMEMOTO struct valuelist * prev; 971f62c4786SHajimu UMEMOTO char * name; 972f62c4786SHajimu UMEMOTO char * proto; 973f62c4786SHajimu UMEMOTO int port; 974f62c4786SHajimu UMEMOTO }; 975f62c4786SHajimu UMEMOTO static struct valuelist *servicelist, *protolist; 976f62c4786SHajimu UMEMOTO 977f62c4786SHajimu UMEMOTO static void 978c6a7de08SCraig Rodrigues res_buildservicelist(void) { 979f62c4786SHajimu UMEMOTO struct servent *sp; 980f62c4786SHajimu UMEMOTO struct valuelist *slp; 981f62c4786SHajimu UMEMOTO 982f62c4786SHajimu UMEMOTO #ifdef MAYBE_HESIOD 983f62c4786SHajimu UMEMOTO setservent(0); 984f62c4786SHajimu UMEMOTO #else 985f62c4786SHajimu UMEMOTO setservent(1); 986f62c4786SHajimu UMEMOTO #endif 987f62c4786SHajimu UMEMOTO while ((sp = getservent()) != NULL) { 988f62c4786SHajimu UMEMOTO slp = (struct valuelist *)malloc(sizeof(struct valuelist)); 989f62c4786SHajimu UMEMOTO if (!slp) 990f62c4786SHajimu UMEMOTO break; 991f62c4786SHajimu UMEMOTO slp->name = strdup(sp->s_name); 992f62c4786SHajimu UMEMOTO slp->proto = strdup(sp->s_proto); 993f62c4786SHajimu UMEMOTO if ((slp->name == NULL) || (slp->proto == NULL)) { 994f62c4786SHajimu UMEMOTO if (slp->name) free(slp->name); 995f62c4786SHajimu UMEMOTO if (slp->proto) free(slp->proto); 996f62c4786SHajimu UMEMOTO free(slp); 997f62c4786SHajimu UMEMOTO break; 998f62c4786SHajimu UMEMOTO } 999dde4a85dSHajimu UMEMOTO slp->port = ntohs((u_int16_t)sp->s_port); /*%< host byt order */ 1000f62c4786SHajimu UMEMOTO slp->next = servicelist; 1001f62c4786SHajimu UMEMOTO slp->prev = NULL; 1002f62c4786SHajimu UMEMOTO if (servicelist) 1003f62c4786SHajimu UMEMOTO servicelist->prev = slp; 1004f62c4786SHajimu UMEMOTO servicelist = slp; 1005f62c4786SHajimu UMEMOTO } 1006f62c4786SHajimu UMEMOTO endservent(); 1007f62c4786SHajimu UMEMOTO } 1008f62c4786SHajimu UMEMOTO 1009d808369aSHajimu UMEMOTO #ifndef _LIBC 1010f62c4786SHajimu UMEMOTO void 1011f62c4786SHajimu UMEMOTO res_destroyservicelist() { 1012f62c4786SHajimu UMEMOTO struct valuelist *slp, *slp_next; 1013f62c4786SHajimu UMEMOTO 1014f62c4786SHajimu UMEMOTO for (slp = servicelist; slp != NULL; slp = slp_next) { 1015f62c4786SHajimu UMEMOTO slp_next = slp->next; 1016f62c4786SHajimu UMEMOTO free(slp->name); 1017f62c4786SHajimu UMEMOTO free(slp->proto); 1018f62c4786SHajimu UMEMOTO free(slp); 1019f62c4786SHajimu UMEMOTO } 1020f62c4786SHajimu UMEMOTO servicelist = (struct valuelist *)0; 1021f62c4786SHajimu UMEMOTO } 1022d808369aSHajimu UMEMOTO #endif 1023f62c4786SHajimu UMEMOTO 1024d808369aSHajimu UMEMOTO #ifdef _LIBC 1025d808369aSHajimu UMEMOTO static 1026d808369aSHajimu UMEMOTO #endif 1027f62c4786SHajimu UMEMOTO void 1028f62c4786SHajimu UMEMOTO res_buildprotolist(void) { 1029f62c4786SHajimu UMEMOTO struct protoent *pp; 1030f62c4786SHajimu UMEMOTO struct valuelist *slp; 1031f62c4786SHajimu UMEMOTO 1032f62c4786SHajimu UMEMOTO #ifdef MAYBE_HESIOD 1033f62c4786SHajimu UMEMOTO setprotoent(0); 1034f62c4786SHajimu UMEMOTO #else 1035f62c4786SHajimu UMEMOTO setprotoent(1); 1036f62c4786SHajimu UMEMOTO #endif 1037f62c4786SHajimu UMEMOTO while ((pp = getprotoent()) != NULL) { 1038f62c4786SHajimu UMEMOTO slp = (struct valuelist *)malloc(sizeof(struct valuelist)); 1039f62c4786SHajimu UMEMOTO if (!slp) 1040f62c4786SHajimu UMEMOTO break; 1041f62c4786SHajimu UMEMOTO slp->name = strdup(pp->p_name); 1042f62c4786SHajimu UMEMOTO if (slp->name == NULL) { 1043f62c4786SHajimu UMEMOTO free(slp); 1044f62c4786SHajimu UMEMOTO break; 1045f62c4786SHajimu UMEMOTO } 1046dde4a85dSHajimu UMEMOTO slp->port = pp->p_proto; /*%< host byte order */ 1047f62c4786SHajimu UMEMOTO slp->next = protolist; 1048f62c4786SHajimu UMEMOTO slp->prev = NULL; 1049f62c4786SHajimu UMEMOTO if (protolist) 1050f62c4786SHajimu UMEMOTO protolist->prev = slp; 1051f62c4786SHajimu UMEMOTO protolist = slp; 1052f62c4786SHajimu UMEMOTO } 1053f62c4786SHajimu UMEMOTO endprotoent(); 1054f62c4786SHajimu UMEMOTO } 1055f62c4786SHajimu UMEMOTO 1056d808369aSHajimu UMEMOTO #ifndef _LIBC 1057f62c4786SHajimu UMEMOTO void 1058f62c4786SHajimu UMEMOTO res_destroyprotolist(void) { 1059f62c4786SHajimu UMEMOTO struct valuelist *plp, *plp_next; 1060f62c4786SHajimu UMEMOTO 1061f62c4786SHajimu UMEMOTO for (plp = protolist; plp != NULL; plp = plp_next) { 1062f62c4786SHajimu UMEMOTO plp_next = plp->next; 1063f62c4786SHajimu UMEMOTO free(plp->name); 1064f62c4786SHajimu UMEMOTO free(plp); 1065f62c4786SHajimu UMEMOTO } 1066f62c4786SHajimu UMEMOTO protolist = (struct valuelist *)0; 1067f62c4786SHajimu UMEMOTO } 1068d808369aSHajimu UMEMOTO #endif 1069f62c4786SHajimu UMEMOTO 1070f62c4786SHajimu UMEMOTO static int 1071f62c4786SHajimu UMEMOTO findservice(const char *s, struct valuelist **list) { 1072f62c4786SHajimu UMEMOTO struct valuelist *lp = *list; 1073f62c4786SHajimu UMEMOTO int n; 1074f62c4786SHajimu UMEMOTO 1075f62c4786SHajimu UMEMOTO for (; lp != NULL; lp = lp->next) 1076f62c4786SHajimu UMEMOTO if (strcasecmp(lp->name, s) == 0) { 1077f62c4786SHajimu UMEMOTO if (lp != *list) { 1078f62c4786SHajimu UMEMOTO lp->prev->next = lp->next; 1079f62c4786SHajimu UMEMOTO if (lp->next) 1080f62c4786SHajimu UMEMOTO lp->next->prev = lp->prev; 1081f62c4786SHajimu UMEMOTO (*list)->prev = lp; 1082f62c4786SHajimu UMEMOTO lp->next = *list; 1083f62c4786SHajimu UMEMOTO *list = lp; 1084f62c4786SHajimu UMEMOTO } 1085dde4a85dSHajimu UMEMOTO return (lp->port); /*%< host byte order */ 1086f62c4786SHajimu UMEMOTO } 1087f62c4786SHajimu UMEMOTO if (sscanf(s, "%d", &n) != 1 || n <= 0) 1088f62c4786SHajimu UMEMOTO n = -1; 1089f62c4786SHajimu UMEMOTO return (n); 1090f62c4786SHajimu UMEMOTO } 1091f62c4786SHajimu UMEMOTO 1092dde4a85dSHajimu UMEMOTO /*% 1093f62c4786SHajimu UMEMOTO * Convert service name or (ascii) number to int. 1094f62c4786SHajimu UMEMOTO */ 1095d808369aSHajimu UMEMOTO #ifdef _LIBC 1096d808369aSHajimu UMEMOTO static 1097d808369aSHajimu UMEMOTO #endif 1098f62c4786SHajimu UMEMOTO int 1099f62c4786SHajimu UMEMOTO res_servicenumber(const char *p) { 1100f62c4786SHajimu UMEMOTO if (servicelist == (struct valuelist *)0) 1101f62c4786SHajimu UMEMOTO res_buildservicelist(); 1102f62c4786SHajimu UMEMOTO return (findservice(p, &servicelist)); 1103f62c4786SHajimu UMEMOTO } 1104f62c4786SHajimu UMEMOTO 1105dde4a85dSHajimu UMEMOTO /*% 1106f62c4786SHajimu UMEMOTO * Convert protocol name or (ascii) number to int. 1107f62c4786SHajimu UMEMOTO */ 1108d808369aSHajimu UMEMOTO #ifdef _LIBC 1109d808369aSHajimu UMEMOTO static 1110d808369aSHajimu UMEMOTO #endif 1111f62c4786SHajimu UMEMOTO int 1112f62c4786SHajimu UMEMOTO res_protocolnumber(const char *p) { 1113f62c4786SHajimu UMEMOTO if (protolist == (struct valuelist *)0) 1114f62c4786SHajimu UMEMOTO res_buildprotolist(); 1115f62c4786SHajimu UMEMOTO return (findservice(p, &protolist)); 1116f62c4786SHajimu UMEMOTO } 1117f62c4786SHajimu UMEMOTO 1118d808369aSHajimu UMEMOTO #ifndef _LIBC 1119f62c4786SHajimu UMEMOTO static struct servent * 1120dde4a85dSHajimu UMEMOTO cgetservbyport(u_int16_t port, const char *proto) { /*%< Host byte order. */ 1121f62c4786SHajimu UMEMOTO struct valuelist **list = &servicelist; 1122f62c4786SHajimu UMEMOTO struct valuelist *lp = *list; 1123f62c4786SHajimu UMEMOTO static struct servent serv; 1124f62c4786SHajimu UMEMOTO 1125f62c4786SHajimu UMEMOTO port = ntohs(port); 1126f62c4786SHajimu UMEMOTO for (; lp != NULL; lp = lp->next) { 1127dde4a85dSHajimu UMEMOTO if (port != (u_int16_t)lp->port) /*%< Host byte order. */ 1128f62c4786SHajimu UMEMOTO continue; 1129f62c4786SHajimu UMEMOTO if (strcasecmp(lp->proto, proto) == 0) { 1130f62c4786SHajimu UMEMOTO if (lp != *list) { 1131f62c4786SHajimu UMEMOTO lp->prev->next = lp->next; 1132f62c4786SHajimu UMEMOTO if (lp->next) 1133f62c4786SHajimu UMEMOTO lp->next->prev = lp->prev; 1134f62c4786SHajimu UMEMOTO (*list)->prev = lp; 1135f62c4786SHajimu UMEMOTO lp->next = *list; 1136f62c4786SHajimu UMEMOTO *list = lp; 1137f62c4786SHajimu UMEMOTO } 1138f62c4786SHajimu UMEMOTO serv.s_name = lp->name; 1139f62c4786SHajimu UMEMOTO serv.s_port = htons((u_int16_t)lp->port); 1140f62c4786SHajimu UMEMOTO serv.s_proto = lp->proto; 1141f62c4786SHajimu UMEMOTO return (&serv); 1142f62c4786SHajimu UMEMOTO } 1143f62c4786SHajimu UMEMOTO } 1144f62c4786SHajimu UMEMOTO return (0); 1145f62c4786SHajimu UMEMOTO } 1146f62c4786SHajimu UMEMOTO 1147f62c4786SHajimu UMEMOTO static struct protoent * 1148dde4a85dSHajimu UMEMOTO cgetprotobynumber(int proto) { /*%< Host byte order. */ 1149f62c4786SHajimu UMEMOTO struct valuelist **list = &protolist; 1150f62c4786SHajimu UMEMOTO struct valuelist *lp = *list; 1151f62c4786SHajimu UMEMOTO static struct protoent prot; 1152f62c4786SHajimu UMEMOTO 1153f62c4786SHajimu UMEMOTO for (; lp != NULL; lp = lp->next) 1154dde4a85dSHajimu UMEMOTO if (lp->port == proto) { /*%< Host byte order. */ 1155f62c4786SHajimu UMEMOTO if (lp != *list) { 1156f62c4786SHajimu UMEMOTO lp->prev->next = lp->next; 1157f62c4786SHajimu UMEMOTO if (lp->next) 1158f62c4786SHajimu UMEMOTO lp->next->prev = lp->prev; 1159f62c4786SHajimu UMEMOTO (*list)->prev = lp; 1160f62c4786SHajimu UMEMOTO lp->next = *list; 1161f62c4786SHajimu UMEMOTO *list = lp; 1162f62c4786SHajimu UMEMOTO } 1163f62c4786SHajimu UMEMOTO prot.p_name = lp->name; 1164dde4a85dSHajimu UMEMOTO prot.p_proto = lp->port; /*%< Host byte order. */ 1165f62c4786SHajimu UMEMOTO return (&prot); 1166f62c4786SHajimu UMEMOTO } 1167f62c4786SHajimu UMEMOTO return (0); 1168f62c4786SHajimu UMEMOTO } 1169f62c4786SHajimu UMEMOTO 1170f62c4786SHajimu UMEMOTO const char * 1171f62c4786SHajimu UMEMOTO res_protocolname(int num) { 1172f62c4786SHajimu UMEMOTO static char number[8]; 1173f62c4786SHajimu UMEMOTO struct protoent *pp; 1174f62c4786SHajimu UMEMOTO 1175f62c4786SHajimu UMEMOTO if (protolist == (struct valuelist *)0) 1176f62c4786SHajimu UMEMOTO res_buildprotolist(); 1177f62c4786SHajimu UMEMOTO pp = cgetprotobynumber(num); 1178513004a2SPedro F. Giffuni if (pp == NULL) { 1179f62c4786SHajimu UMEMOTO (void) sprintf(number, "%d", num); 1180f62c4786SHajimu UMEMOTO return (number); 1181f62c4786SHajimu UMEMOTO } 1182f62c4786SHajimu UMEMOTO return (pp->p_name); 1183f62c4786SHajimu UMEMOTO } 1184f62c4786SHajimu UMEMOTO 1185f62c4786SHajimu UMEMOTO const char * 1186dde4a85dSHajimu UMEMOTO res_servicename(u_int16_t port, const char *proto) { /*%< Host byte order. */ 1187f62c4786SHajimu UMEMOTO static char number[8]; 1188f62c4786SHajimu UMEMOTO struct servent *ss; 1189f62c4786SHajimu UMEMOTO 1190f62c4786SHajimu UMEMOTO if (servicelist == (struct valuelist *)0) 1191f62c4786SHajimu UMEMOTO res_buildservicelist(); 1192f62c4786SHajimu UMEMOTO ss = cgetservbyport(htons(port), proto); 1193513004a2SPedro F. Giffuni if (ss == NULL) { 1194f62c4786SHajimu UMEMOTO (void) sprintf(number, "%d", port); 1195f62c4786SHajimu UMEMOTO return (number); 1196f62c4786SHajimu UMEMOTO } 1197f62c4786SHajimu UMEMOTO return (ss->s_name); 1198f62c4786SHajimu UMEMOTO } 1199d808369aSHajimu UMEMOTO #endif 1200