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 18861249f5SHajimu UMEMOTO /*! \file 19861249f5SHajimu UMEMOTO * \brief 20f62c4786SHajimu UMEMOTO * Based on the Dynamic DNS reference implementation by Viraj Bais 21861249f5SHajimu 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 */ 27f62c4786SHajimu UMEMOTO 28f62c4786SHajimu UMEMOTO #include "port_before.h" 29f62c4786SHajimu UMEMOTO 30f62c4786SHajimu UMEMOTO #include <sys/types.h> 31f62c4786SHajimu UMEMOTO #include <sys/param.h> 32f62c4786SHajimu UMEMOTO 33f62c4786SHajimu UMEMOTO #include <netinet/in.h> 34f62c4786SHajimu UMEMOTO #include <arpa/nameser.h> 35f62c4786SHajimu UMEMOTO #include <arpa/inet.h> 36f62c4786SHajimu UMEMOTO 37f62c4786SHajimu UMEMOTO #include <errno.h> 38f62c4786SHajimu UMEMOTO #include <limits.h> 39f62c4786SHajimu UMEMOTO #include <netdb.h> 40f62c4786SHajimu UMEMOTO #include <resolv.h> 41f62c4786SHajimu UMEMOTO #include <res_update.h> 42f62c4786SHajimu UMEMOTO #include <stdio.h> 43f62c4786SHajimu UMEMOTO #include <stdlib.h> 44f62c4786SHajimu UMEMOTO #include <string.h> 45f62c4786SHajimu UMEMOTO #include <unistd.h> 46f62c4786SHajimu UMEMOTO #include <ctype.h> 47f62c4786SHajimu UMEMOTO 48f62c4786SHajimu UMEMOTO #include "port_after.h" 49f62c4786SHajimu UMEMOTO 50f62c4786SHajimu UMEMOTO /* Options. Leave them on. */ 51f62c4786SHajimu UMEMOTO #define DEBUG 52f62c4786SHajimu UMEMOTO #define MAXPORT 1024 53f62c4786SHajimu UMEMOTO 54f62c4786SHajimu UMEMOTO static int getnum_str(u_char **, u_char *); 55f62c4786SHajimu UMEMOTO static int gethexnum_str(u_char **, u_char *); 56f62c4786SHajimu UMEMOTO static int getword_str(char *, int, u_char **, u_char *); 57f62c4786SHajimu UMEMOTO static int getstr_str(char *, int, u_char **, u_char *); 58f62c4786SHajimu UMEMOTO 59f62c4786SHajimu UMEMOTO #define ShrinkBuffer(x) if ((buflen -= x) < 0) return (-2); 60f62c4786SHajimu UMEMOTO 61f62c4786SHajimu UMEMOTO /* Forward. */ 62f62c4786SHajimu UMEMOTO 63f62c4786SHajimu UMEMOTO int res_protocolnumber(const char *); 64f62c4786SHajimu UMEMOTO int res_servicenumber(const char *); 65f62c4786SHajimu UMEMOTO 66861249f5SHajimu UMEMOTO /*% 67f62c4786SHajimu UMEMOTO * Form update packets. 68f62c4786SHajimu UMEMOTO * Returns the size of the resulting packet if no error 69861249f5SHajimu UMEMOTO * 70f62c4786SHajimu UMEMOTO * On error, 71861249f5SHajimu UMEMOTO * returns 72861249f5SHajimu UMEMOTO *\li -1 if error in reading a word/number in rdata 73f62c4786SHajimu UMEMOTO * portion for update packets 74861249f5SHajimu UMEMOTO *\li -2 if length of buffer passed is insufficient 75861249f5SHajimu UMEMOTO *\li -3 if zone section is not the first section in 76f62c4786SHajimu UMEMOTO * the linked list, or section order has a problem 77861249f5SHajimu UMEMOTO *\li -4 on a number overflow 78861249f5SHajimu UMEMOTO *\li -5 unknown operation or no records 79f62c4786SHajimu UMEMOTO */ 80f62c4786SHajimu UMEMOTO int 81f62c4786SHajimu UMEMOTO res_nmkupdate(res_state statp, ns_updrec *rrecp_in, u_char *buf, int buflen) { 82f62c4786SHajimu UMEMOTO ns_updrec *rrecp_start = rrecp_in; 83f62c4786SHajimu UMEMOTO HEADER *hp; 84f62c4786SHajimu UMEMOTO u_char *cp, *sp2, *startp, *endp; 85f62c4786SHajimu UMEMOTO int n, i, soanum, multiline; 86f62c4786SHajimu UMEMOTO ns_updrec *rrecp; 87f62c4786SHajimu UMEMOTO struct in_addr ina; 88f62c4786SHajimu UMEMOTO struct in6_addr in6a; 89f62c4786SHajimu UMEMOTO char buf2[MAXDNAME]; 90f62c4786SHajimu UMEMOTO u_char buf3[MAXDNAME]; 91f62c4786SHajimu UMEMOTO int section, numrrs = 0, counts[ns_s_max]; 92f62c4786SHajimu UMEMOTO u_int16_t rtype, rclass; 93f62c4786SHajimu UMEMOTO u_int32_t n1, rttl; 94f62c4786SHajimu UMEMOTO u_char *dnptrs[20], **dpp, **lastdnptr; 95f62c4786SHajimu UMEMOTO int siglen, keylen, certlen; 96f62c4786SHajimu UMEMOTO 97f62c4786SHajimu UMEMOTO /* 98f62c4786SHajimu UMEMOTO * Initialize header fields. 99f62c4786SHajimu UMEMOTO */ 100f62c4786SHajimu UMEMOTO if ((buf == NULL) || (buflen < HFIXEDSZ)) 101f62c4786SHajimu UMEMOTO return (-1); 102f62c4786SHajimu UMEMOTO memset(buf, 0, HFIXEDSZ); 103f62c4786SHajimu UMEMOTO hp = (HEADER *) buf; 104046c3635SPedro F. Giffuni statp->id = res_nrandomid(statp); 105046c3635SPedro F. Giffuni hp->id = htons(statp->id); 106f62c4786SHajimu UMEMOTO hp->opcode = ns_o_update; 107f62c4786SHajimu UMEMOTO hp->rcode = NOERROR; 108f62c4786SHajimu UMEMOTO cp = buf + HFIXEDSZ; 109f62c4786SHajimu UMEMOTO buflen -= HFIXEDSZ; 110f62c4786SHajimu UMEMOTO dpp = dnptrs; 111f62c4786SHajimu UMEMOTO *dpp++ = buf; 112f62c4786SHajimu UMEMOTO *dpp++ = NULL; 113f62c4786SHajimu UMEMOTO lastdnptr = dnptrs + sizeof dnptrs / sizeof dnptrs[0]; 114f62c4786SHajimu UMEMOTO 115f62c4786SHajimu UMEMOTO if (rrecp_start == NULL) 116f62c4786SHajimu UMEMOTO return (-5); 117f62c4786SHajimu UMEMOTO else if (rrecp_start->r_section != S_ZONE) 118f62c4786SHajimu UMEMOTO return (-3); 119f62c4786SHajimu UMEMOTO 120f62c4786SHajimu UMEMOTO memset(counts, 0, sizeof counts); 121f62c4786SHajimu UMEMOTO for (rrecp = rrecp_start; rrecp; rrecp = NEXT(rrecp, r_glink)) { 122f62c4786SHajimu UMEMOTO numrrs++; 123f62c4786SHajimu UMEMOTO section = rrecp->r_section; 124f62c4786SHajimu UMEMOTO if (section < 0 || section >= ns_s_max) 125f62c4786SHajimu UMEMOTO return (-1); 126f62c4786SHajimu UMEMOTO counts[section]++; 127f62c4786SHajimu UMEMOTO for (i = section + 1; i < ns_s_max; i++) 128f62c4786SHajimu UMEMOTO if (counts[i]) 129f62c4786SHajimu UMEMOTO return (-3); 130f62c4786SHajimu UMEMOTO rtype = rrecp->r_type; 131f62c4786SHajimu UMEMOTO rclass = rrecp->r_class; 132f62c4786SHajimu UMEMOTO rttl = rrecp->r_ttl; 133f62c4786SHajimu UMEMOTO /* overload class and type */ 134f62c4786SHajimu UMEMOTO if (section == S_PREREQ) { 135f62c4786SHajimu UMEMOTO rttl = 0; 136f62c4786SHajimu UMEMOTO switch (rrecp->r_opcode) { 137f62c4786SHajimu UMEMOTO case YXDOMAIN: 138f62c4786SHajimu UMEMOTO rclass = C_ANY; 139f62c4786SHajimu UMEMOTO rtype = T_ANY; 140f62c4786SHajimu UMEMOTO rrecp->r_size = 0; 141f62c4786SHajimu UMEMOTO break; 142f62c4786SHajimu UMEMOTO case NXDOMAIN: 143f62c4786SHajimu UMEMOTO rclass = C_NONE; 144f62c4786SHajimu UMEMOTO rtype = T_ANY; 145f62c4786SHajimu UMEMOTO rrecp->r_size = 0; 146f62c4786SHajimu UMEMOTO break; 147f62c4786SHajimu UMEMOTO case NXRRSET: 148f62c4786SHajimu UMEMOTO rclass = C_NONE; 149f62c4786SHajimu UMEMOTO rrecp->r_size = 0; 150f62c4786SHajimu UMEMOTO break; 151f62c4786SHajimu UMEMOTO case YXRRSET: 152f62c4786SHajimu UMEMOTO if (rrecp->r_size == 0) 153f62c4786SHajimu UMEMOTO rclass = C_ANY; 154f62c4786SHajimu UMEMOTO break; 155f62c4786SHajimu UMEMOTO default: 156f62c4786SHajimu UMEMOTO fprintf(stderr, 157f62c4786SHajimu UMEMOTO "res_mkupdate: incorrect opcode: %d\n", 158f62c4786SHajimu UMEMOTO rrecp->r_opcode); 159f62c4786SHajimu UMEMOTO fflush(stderr); 160f62c4786SHajimu UMEMOTO return (-1); 161f62c4786SHajimu UMEMOTO } 162f62c4786SHajimu UMEMOTO } else if (section == S_UPDATE) { 163f62c4786SHajimu UMEMOTO switch (rrecp->r_opcode) { 164f62c4786SHajimu UMEMOTO case DELETE: 165f62c4786SHajimu UMEMOTO rclass = rrecp->r_size == 0 ? C_ANY : C_NONE; 166f62c4786SHajimu UMEMOTO break; 167f62c4786SHajimu UMEMOTO case ADD: 168f62c4786SHajimu UMEMOTO break; 169f62c4786SHajimu UMEMOTO default: 170f62c4786SHajimu UMEMOTO fprintf(stderr, 171f62c4786SHajimu UMEMOTO "res_mkupdate: incorrect opcode: %d\n", 172f62c4786SHajimu UMEMOTO rrecp->r_opcode); 173f62c4786SHajimu UMEMOTO fflush(stderr); 174f62c4786SHajimu UMEMOTO return (-1); 175f62c4786SHajimu UMEMOTO } 176f62c4786SHajimu UMEMOTO } 177f62c4786SHajimu UMEMOTO 178f62c4786SHajimu UMEMOTO /* 179f62c4786SHajimu UMEMOTO * XXX appending default domain to owner name is omitted, 180f62c4786SHajimu UMEMOTO * fqdn must be provided 181f62c4786SHajimu UMEMOTO */ 182f62c4786SHajimu UMEMOTO if ((n = dn_comp(rrecp->r_dname, cp, buflen, dnptrs, 183f62c4786SHajimu UMEMOTO lastdnptr)) < 0) 184f62c4786SHajimu UMEMOTO return (-1); 185f62c4786SHajimu UMEMOTO cp += n; 186f62c4786SHajimu UMEMOTO ShrinkBuffer(n + 2*INT16SZ); 187f62c4786SHajimu UMEMOTO PUTSHORT(rtype, cp); 188f62c4786SHajimu UMEMOTO PUTSHORT(rclass, cp); 189f62c4786SHajimu UMEMOTO if (section == S_ZONE) { 190f62c4786SHajimu UMEMOTO if (numrrs != 1 || rrecp->r_type != T_SOA) 191f62c4786SHajimu UMEMOTO return (-3); 192f62c4786SHajimu UMEMOTO continue; 193f62c4786SHajimu UMEMOTO } 194f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ + INT16SZ); 195f62c4786SHajimu UMEMOTO PUTLONG(rttl, cp); 196861249f5SHajimu UMEMOTO sp2 = cp; /*%< save pointer to length byte */ 197f62c4786SHajimu UMEMOTO cp += INT16SZ; 198f62c4786SHajimu UMEMOTO if (rrecp->r_size == 0) { 199f62c4786SHajimu UMEMOTO if (section == S_UPDATE && rclass != C_ANY) 200f62c4786SHajimu UMEMOTO return (-1); 201f62c4786SHajimu UMEMOTO else { 202f62c4786SHajimu UMEMOTO PUTSHORT(0, sp2); 203f62c4786SHajimu UMEMOTO continue; 204f62c4786SHajimu UMEMOTO } 205f62c4786SHajimu UMEMOTO } 206f62c4786SHajimu UMEMOTO startp = rrecp->r_data; 207f62c4786SHajimu UMEMOTO endp = startp + rrecp->r_size - 1; 208f62c4786SHajimu UMEMOTO /* XXX this should be done centrally. */ 209f62c4786SHajimu UMEMOTO switch (rrecp->r_type) { 210f62c4786SHajimu UMEMOTO case T_A: 211f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 212f62c4786SHajimu UMEMOTO return (-1); 213f62c4786SHajimu UMEMOTO if (!inet_aton(buf2, &ina)) 214f62c4786SHajimu UMEMOTO return (-1); 215f62c4786SHajimu UMEMOTO n1 = ntohl(ina.s_addr); 216f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 217f62c4786SHajimu UMEMOTO PUTLONG(n1, cp); 218f62c4786SHajimu UMEMOTO break; 219f62c4786SHajimu UMEMOTO case T_CNAME: 220f62c4786SHajimu UMEMOTO case T_MB: 221f62c4786SHajimu UMEMOTO case T_MG: 222f62c4786SHajimu UMEMOTO case T_MR: 223f62c4786SHajimu UMEMOTO case T_NS: 224f62c4786SHajimu UMEMOTO case T_PTR: 225f62c4786SHajimu UMEMOTO case ns_t_dname: 226f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 227f62c4786SHajimu UMEMOTO return (-1); 228f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, dnptrs, lastdnptr); 229f62c4786SHajimu UMEMOTO if (n < 0) 230f62c4786SHajimu UMEMOTO return (-1); 231f62c4786SHajimu UMEMOTO cp += n; 232f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 233f62c4786SHajimu UMEMOTO break; 234f62c4786SHajimu UMEMOTO case T_MINFO: 235f62c4786SHajimu UMEMOTO case T_SOA: 236f62c4786SHajimu UMEMOTO case T_RP: 237f62c4786SHajimu UMEMOTO for (i = 0; i < 2; i++) { 238f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, 239f62c4786SHajimu UMEMOTO endp)) 240f62c4786SHajimu UMEMOTO return (-1); 241f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, 242f62c4786SHajimu UMEMOTO dnptrs, lastdnptr); 243f62c4786SHajimu UMEMOTO if (n < 0) 244f62c4786SHajimu UMEMOTO return (-1); 245f62c4786SHajimu UMEMOTO cp += n; 246f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 247f62c4786SHajimu UMEMOTO } 248f62c4786SHajimu UMEMOTO if (rrecp->r_type == T_SOA) { 249f62c4786SHajimu UMEMOTO ShrinkBuffer(5 * INT32SZ); 250f62c4786SHajimu UMEMOTO while (isspace(*startp) || !*startp) 251f62c4786SHajimu UMEMOTO startp++; 252f62c4786SHajimu UMEMOTO if (*startp == '(') { 253f62c4786SHajimu UMEMOTO multiline = 1; 254f62c4786SHajimu UMEMOTO startp++; 255f62c4786SHajimu UMEMOTO } else 256f62c4786SHajimu UMEMOTO multiline = 0; 257f62c4786SHajimu UMEMOTO /* serial, refresh, retry, expire, minimum */ 258f62c4786SHajimu UMEMOTO for (i = 0; i < 5; i++) { 259f62c4786SHajimu UMEMOTO soanum = getnum_str(&startp, endp); 260f62c4786SHajimu UMEMOTO if (soanum < 0) 261f62c4786SHajimu UMEMOTO return (-1); 262f62c4786SHajimu UMEMOTO PUTLONG(soanum, cp); 263f62c4786SHajimu UMEMOTO } 264f62c4786SHajimu UMEMOTO if (multiline) { 265f62c4786SHajimu UMEMOTO while (isspace(*startp) || !*startp) 266f62c4786SHajimu UMEMOTO startp++; 267f62c4786SHajimu UMEMOTO if (*startp != ')') 268f62c4786SHajimu UMEMOTO return (-1); 269f62c4786SHajimu UMEMOTO } 270f62c4786SHajimu UMEMOTO } 271f62c4786SHajimu UMEMOTO break; 272f62c4786SHajimu UMEMOTO case T_MX: 273f62c4786SHajimu UMEMOTO case T_AFSDB: 274f62c4786SHajimu UMEMOTO case T_RT: 275f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 276f62c4786SHajimu UMEMOTO if (n < 0) 277f62c4786SHajimu UMEMOTO return (-1); 278f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 279f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 280f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 281f62c4786SHajimu UMEMOTO return (-1); 282f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, dnptrs, lastdnptr); 283f62c4786SHajimu UMEMOTO if (n < 0) 284f62c4786SHajimu UMEMOTO return (-1); 285f62c4786SHajimu UMEMOTO cp += n; 286f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 287f62c4786SHajimu UMEMOTO break; 288f62c4786SHajimu UMEMOTO case T_SRV: 289f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 290f62c4786SHajimu UMEMOTO if (n < 0) 291f62c4786SHajimu UMEMOTO return (-1); 292f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 293f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 294f62c4786SHajimu UMEMOTO 295f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 296f62c4786SHajimu UMEMOTO if (n < 0) 297f62c4786SHajimu UMEMOTO return (-1); 298f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 299f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 300f62c4786SHajimu UMEMOTO 301f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 302f62c4786SHajimu UMEMOTO if (n < 0) 303f62c4786SHajimu UMEMOTO return (-1); 304f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 305f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 306f62c4786SHajimu UMEMOTO 307f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 308f62c4786SHajimu UMEMOTO return (-1); 309f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, NULL, NULL); 310f62c4786SHajimu UMEMOTO if (n < 0) 311f62c4786SHajimu UMEMOTO return (-1); 312f62c4786SHajimu UMEMOTO cp += n; 313f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 314f62c4786SHajimu UMEMOTO break; 315f62c4786SHajimu UMEMOTO case T_PX: 316f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 317f62c4786SHajimu UMEMOTO if (n < 0) 318f62c4786SHajimu UMEMOTO return (-1); 319f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 320f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 321f62c4786SHajimu UMEMOTO for (i = 0; i < 2; i++) { 322f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, 323f62c4786SHajimu UMEMOTO endp)) 324f62c4786SHajimu UMEMOTO return (-1); 325f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, dnptrs, 326f62c4786SHajimu UMEMOTO lastdnptr); 327f62c4786SHajimu UMEMOTO if (n < 0) 328f62c4786SHajimu UMEMOTO return (-1); 329f62c4786SHajimu UMEMOTO cp += n; 330f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 331f62c4786SHajimu UMEMOTO } 332f62c4786SHajimu UMEMOTO break; 333f62c4786SHajimu UMEMOTO case T_WKS: { 334f62c4786SHajimu UMEMOTO char bm[MAXPORT/8]; 335f62c4786SHajimu UMEMOTO unsigned int maxbm = 0; 336f62c4786SHajimu UMEMOTO 337f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 338f62c4786SHajimu UMEMOTO return (-1); 339f62c4786SHajimu UMEMOTO if (!inet_aton(buf2, &ina)) 340f62c4786SHajimu UMEMOTO return (-1); 341f62c4786SHajimu UMEMOTO n1 = ntohl(ina.s_addr); 342f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 343f62c4786SHajimu UMEMOTO PUTLONG(n1, cp); 344f62c4786SHajimu UMEMOTO 345f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 346f62c4786SHajimu UMEMOTO return (-1); 347f62c4786SHajimu UMEMOTO if ((i = res_protocolnumber(buf2)) < 0) 348f62c4786SHajimu UMEMOTO return (-1); 349f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 350f62c4786SHajimu UMEMOTO *cp++ = i & 0xff; 351f62c4786SHajimu UMEMOTO 352f62c4786SHajimu UMEMOTO for (i = 0; i < MAXPORT/8 ; i++) 353f62c4786SHajimu UMEMOTO bm[i] = 0; 354f62c4786SHajimu UMEMOTO 355f62c4786SHajimu UMEMOTO while (getword_str(buf2, sizeof buf2, &startp, endp)) { 356f62c4786SHajimu UMEMOTO if ((n = res_servicenumber(buf2)) <= 0) 357f62c4786SHajimu UMEMOTO return (-1); 358f62c4786SHajimu UMEMOTO 359f62c4786SHajimu UMEMOTO if (n < MAXPORT) { 360f62c4786SHajimu UMEMOTO bm[n/8] |= (0x80>>(n%8)); 361f62c4786SHajimu UMEMOTO if ((unsigned)n > maxbm) 362f62c4786SHajimu UMEMOTO maxbm = n; 363f62c4786SHajimu UMEMOTO } else 364f62c4786SHajimu UMEMOTO return (-1); 365f62c4786SHajimu UMEMOTO } 366f62c4786SHajimu UMEMOTO maxbm = maxbm/8 + 1; 367f62c4786SHajimu UMEMOTO ShrinkBuffer(maxbm); 368f62c4786SHajimu UMEMOTO memcpy(cp, bm, maxbm); 369f62c4786SHajimu UMEMOTO cp += maxbm; 370f62c4786SHajimu UMEMOTO break; 371f62c4786SHajimu UMEMOTO } 372f62c4786SHajimu UMEMOTO case T_HINFO: 373f62c4786SHajimu UMEMOTO for (i = 0; i < 2; i++) { 374f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 375f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 376f62c4786SHajimu UMEMOTO return (-1); 377f62c4786SHajimu UMEMOTO if (n > 255) 378f62c4786SHajimu UMEMOTO return (-1); 379f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 380f62c4786SHajimu UMEMOTO *cp++ = n; 381f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 382f62c4786SHajimu UMEMOTO cp += n; 383f62c4786SHajimu UMEMOTO } 384f62c4786SHajimu UMEMOTO break; 385f62c4786SHajimu UMEMOTO case T_TXT: 386f62c4786SHajimu UMEMOTO for (;;) { 387f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 388f62c4786SHajimu UMEMOTO &startp, endp)) < 0) { 389f62c4786SHajimu UMEMOTO if (cp != (sp2 + INT16SZ)) 390f62c4786SHajimu UMEMOTO break; 391f62c4786SHajimu UMEMOTO return (-1); 392f62c4786SHajimu UMEMOTO } 393f62c4786SHajimu UMEMOTO if (n > 255) 394f62c4786SHajimu UMEMOTO return (-1); 395f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 396f62c4786SHajimu UMEMOTO *cp++ = n; 397f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 398f62c4786SHajimu UMEMOTO cp += n; 399f62c4786SHajimu UMEMOTO } 400f62c4786SHajimu UMEMOTO break; 401f62c4786SHajimu UMEMOTO case T_X25: 402f62c4786SHajimu UMEMOTO /* RFC1183 */ 403f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, &startp, 404f62c4786SHajimu UMEMOTO endp)) < 0) 405f62c4786SHajimu UMEMOTO return (-1); 406f62c4786SHajimu UMEMOTO if (n > 255) 407f62c4786SHajimu UMEMOTO return (-1); 408f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 409f62c4786SHajimu UMEMOTO *cp++ = n; 410f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 411f62c4786SHajimu UMEMOTO cp += n; 412f62c4786SHajimu UMEMOTO break; 413f62c4786SHajimu UMEMOTO case T_ISDN: 414f62c4786SHajimu UMEMOTO /* RFC1183 */ 415f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, &startp, 416f62c4786SHajimu UMEMOTO endp)) < 0) 417f62c4786SHajimu UMEMOTO return (-1); 418f62c4786SHajimu UMEMOTO if ((n > 255) || (n == 0)) 419f62c4786SHajimu UMEMOTO return (-1); 420f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 421f62c4786SHajimu UMEMOTO *cp++ = n; 422f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 423f62c4786SHajimu UMEMOTO cp += n; 424f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, &startp, 425f62c4786SHajimu UMEMOTO endp)) < 0) 426f62c4786SHajimu UMEMOTO n = 0; 427f62c4786SHajimu UMEMOTO if (n > 255) 428f62c4786SHajimu UMEMOTO return (-1); 429f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 430f62c4786SHajimu UMEMOTO *cp++ = n; 431f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 432f62c4786SHajimu UMEMOTO cp += n; 433f62c4786SHajimu UMEMOTO break; 434f62c4786SHajimu UMEMOTO case T_NSAP: 435f62c4786SHajimu UMEMOTO if ((n = inet_nsap_addr((char *)startp, (u_char *)buf2, sizeof(buf2))) != 0) { 436f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 437f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 438f62c4786SHajimu UMEMOTO cp += n; 439f62c4786SHajimu UMEMOTO } else { 440f62c4786SHajimu UMEMOTO return (-1); 441f62c4786SHajimu UMEMOTO } 442f62c4786SHajimu UMEMOTO break; 443f62c4786SHajimu UMEMOTO case T_LOC: 444f62c4786SHajimu UMEMOTO if ((n = loc_aton((char *)startp, (u_char *)buf2)) != 0) { 445f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 446f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 447f62c4786SHajimu UMEMOTO cp += n; 448f62c4786SHajimu UMEMOTO } else 449f62c4786SHajimu UMEMOTO return (-1); 450f62c4786SHajimu UMEMOTO break; 451f62c4786SHajimu UMEMOTO case ns_t_sig: 452f62c4786SHajimu UMEMOTO { 453f62c4786SHajimu UMEMOTO int sig_type, success, dateerror; 454f62c4786SHajimu UMEMOTO u_int32_t exptime, timesigned; 455f62c4786SHajimu UMEMOTO 456f62c4786SHajimu UMEMOTO /* type */ 457f62c4786SHajimu UMEMOTO if ((n = getword_str(buf2, sizeof buf2, 458f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 459f62c4786SHajimu UMEMOTO return (-1); 460f62c4786SHajimu UMEMOTO sig_type = sym_ston(__p_type_syms, buf2, &success); 461f62c4786SHajimu UMEMOTO if (!success || sig_type == ns_t_any) 462f62c4786SHajimu UMEMOTO return (-1); 463f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 464f62c4786SHajimu UMEMOTO PUTSHORT(sig_type, cp); 465f62c4786SHajimu UMEMOTO /* alg */ 466f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 467f62c4786SHajimu UMEMOTO if (n < 0) 468f62c4786SHajimu UMEMOTO return (-1); 469f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 470f62c4786SHajimu UMEMOTO *cp++ = n; 471f62c4786SHajimu UMEMOTO /* labels */ 472f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 473f62c4786SHajimu UMEMOTO if (n <= 0 || n > 255) 474f62c4786SHajimu UMEMOTO return (-1); 475f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 476f62c4786SHajimu UMEMOTO *cp++ = n; 477f62c4786SHajimu UMEMOTO /* ottl & expire */ 478f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 479f62c4786SHajimu UMEMOTO return (-1); 480f62c4786SHajimu UMEMOTO exptime = ns_datetosecs(buf2, &dateerror); 481f62c4786SHajimu UMEMOTO if (!dateerror) { 482f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 483f62c4786SHajimu UMEMOTO PUTLONG(rttl, cp); 484f62c4786SHajimu UMEMOTO } 485f62c4786SHajimu UMEMOTO else { 486f62c4786SHajimu UMEMOTO char *ulendp; 487f62c4786SHajimu UMEMOTO u_int32_t ottl; 488f62c4786SHajimu UMEMOTO 489f62c4786SHajimu UMEMOTO errno = 0; 490f62c4786SHajimu UMEMOTO ottl = strtoul(buf2, &ulendp, 10); 491f62c4786SHajimu UMEMOTO if (errno != 0 || 492f62c4786SHajimu UMEMOTO (ulendp != NULL && *ulendp != '\0')) 493f62c4786SHajimu UMEMOTO return (-1); 494f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 495f62c4786SHajimu UMEMOTO PUTLONG(ottl, cp); 496f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, 497f62c4786SHajimu UMEMOTO endp)) 498f62c4786SHajimu UMEMOTO return (-1); 499f62c4786SHajimu UMEMOTO exptime = ns_datetosecs(buf2, &dateerror); 500f62c4786SHajimu UMEMOTO if (dateerror) 501f62c4786SHajimu UMEMOTO return (-1); 502f62c4786SHajimu UMEMOTO } 503f62c4786SHajimu UMEMOTO /* expire */ 504f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 505f62c4786SHajimu UMEMOTO PUTLONG(exptime, cp); 506f62c4786SHajimu UMEMOTO /* timesigned */ 507f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 508f62c4786SHajimu UMEMOTO return (-1); 509f62c4786SHajimu UMEMOTO timesigned = ns_datetosecs(buf2, &dateerror); 510f62c4786SHajimu UMEMOTO if (!dateerror) { 511f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 512f62c4786SHajimu UMEMOTO PUTLONG(timesigned, cp); 513f62c4786SHajimu UMEMOTO } 514f62c4786SHajimu UMEMOTO else 515f62c4786SHajimu UMEMOTO return (-1); 516f62c4786SHajimu UMEMOTO /* footprint */ 517f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 518f62c4786SHajimu UMEMOTO if (n < 0) 519f62c4786SHajimu UMEMOTO return (-1); 520f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 521f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 522f62c4786SHajimu UMEMOTO /* signer name */ 523f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 524f62c4786SHajimu UMEMOTO return (-1); 525f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, dnptrs, lastdnptr); 526f62c4786SHajimu UMEMOTO if (n < 0) 527f62c4786SHajimu UMEMOTO return (-1); 528f62c4786SHajimu UMEMOTO cp += n; 529f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 530f62c4786SHajimu UMEMOTO /* sig */ 531f62c4786SHajimu UMEMOTO if ((n = getword_str(buf2, sizeof buf2, 532f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 533f62c4786SHajimu UMEMOTO return (-1); 534f62c4786SHajimu UMEMOTO siglen = b64_pton(buf2, buf3, sizeof(buf3)); 535f62c4786SHajimu UMEMOTO if (siglen < 0) 536f62c4786SHajimu UMEMOTO return (-1); 537f62c4786SHajimu UMEMOTO ShrinkBuffer(siglen); 538f62c4786SHajimu UMEMOTO memcpy(cp, buf3, siglen); 539f62c4786SHajimu UMEMOTO cp += siglen; 540f62c4786SHajimu UMEMOTO break; 541f62c4786SHajimu UMEMOTO } 542f62c4786SHajimu UMEMOTO case ns_t_key: 543f62c4786SHajimu UMEMOTO /* flags */ 544f62c4786SHajimu UMEMOTO n = gethexnum_str(&startp, endp); 545f62c4786SHajimu UMEMOTO if (n < 0) 546f62c4786SHajimu UMEMOTO return (-1); 547f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 548f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 549f62c4786SHajimu UMEMOTO /* proto */ 550f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 551f62c4786SHajimu UMEMOTO if (n < 0) 552f62c4786SHajimu UMEMOTO return (-1); 553f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 554f62c4786SHajimu UMEMOTO *cp++ = n; 555f62c4786SHajimu UMEMOTO /* alg */ 556f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 557f62c4786SHajimu UMEMOTO if (n < 0) 558f62c4786SHajimu UMEMOTO return (-1); 559f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 560f62c4786SHajimu UMEMOTO *cp++ = n; 561f62c4786SHajimu UMEMOTO /* key */ 562f62c4786SHajimu UMEMOTO if ((n = getword_str(buf2, sizeof buf2, 563f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 564f62c4786SHajimu UMEMOTO return (-1); 565f62c4786SHajimu UMEMOTO keylen = b64_pton(buf2, buf3, sizeof(buf3)); 566f62c4786SHajimu UMEMOTO if (keylen < 0) 567f62c4786SHajimu UMEMOTO return (-1); 568f62c4786SHajimu UMEMOTO ShrinkBuffer(keylen); 569f62c4786SHajimu UMEMOTO memcpy(cp, buf3, keylen); 570f62c4786SHajimu UMEMOTO cp += keylen; 571f62c4786SHajimu UMEMOTO break; 572f62c4786SHajimu UMEMOTO case ns_t_nxt: 573f62c4786SHajimu UMEMOTO { 574f62c4786SHajimu UMEMOTO int success, nxt_type; 575f62c4786SHajimu UMEMOTO u_char data[32]; 576f62c4786SHajimu UMEMOTO int maxtype; 577f62c4786SHajimu UMEMOTO 578f62c4786SHajimu UMEMOTO /* next name */ 579f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 580f62c4786SHajimu UMEMOTO return (-1); 581f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, NULL, NULL); 582f62c4786SHajimu UMEMOTO if (n < 0) 583f62c4786SHajimu UMEMOTO return (-1); 584f62c4786SHajimu UMEMOTO cp += n; 585f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 586f62c4786SHajimu UMEMOTO maxtype = 0; 587f62c4786SHajimu UMEMOTO memset(data, 0, sizeof data); 588f62c4786SHajimu UMEMOTO for (;;) { 589f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, 590f62c4786SHajimu UMEMOTO endp)) 591f62c4786SHajimu UMEMOTO break; 592f62c4786SHajimu UMEMOTO nxt_type = sym_ston(__p_type_syms, buf2, 593f62c4786SHajimu UMEMOTO &success); 594f62c4786SHajimu UMEMOTO if (!success || !ns_t_rr_p(nxt_type)) 595f62c4786SHajimu UMEMOTO return (-1); 596f62c4786SHajimu UMEMOTO NS_NXT_BIT_SET(nxt_type, data); 597f62c4786SHajimu UMEMOTO if (nxt_type > maxtype) 598f62c4786SHajimu UMEMOTO maxtype = nxt_type; 599f62c4786SHajimu UMEMOTO } 600f62c4786SHajimu UMEMOTO n = maxtype/NS_NXT_BITS+1; 601f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 602f62c4786SHajimu UMEMOTO memcpy(cp, data, n); 603f62c4786SHajimu UMEMOTO cp += n; 604f62c4786SHajimu UMEMOTO break; 605f62c4786SHajimu UMEMOTO } 606f62c4786SHajimu UMEMOTO case ns_t_cert: 607f62c4786SHajimu UMEMOTO /* type */ 608f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 609f62c4786SHajimu UMEMOTO if (n < 0) 610f62c4786SHajimu UMEMOTO return (-1); 611f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 612f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 613f62c4786SHajimu UMEMOTO /* key tag */ 614f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 615f62c4786SHajimu UMEMOTO if (n < 0) 616f62c4786SHajimu UMEMOTO return (-1); 617f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 618f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 619f62c4786SHajimu UMEMOTO /* alg */ 620f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 621f62c4786SHajimu UMEMOTO if (n < 0) 622f62c4786SHajimu UMEMOTO return (-1); 623f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 624f62c4786SHajimu UMEMOTO *cp++ = n; 625f62c4786SHajimu UMEMOTO /* cert */ 626f62c4786SHajimu UMEMOTO if ((n = getword_str(buf2, sizeof buf2, 627f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 628f62c4786SHajimu UMEMOTO return (-1); 629f62c4786SHajimu UMEMOTO certlen = b64_pton(buf2, buf3, sizeof(buf3)); 630f62c4786SHajimu UMEMOTO if (certlen < 0) 631f62c4786SHajimu UMEMOTO return (-1); 632f62c4786SHajimu UMEMOTO ShrinkBuffer(certlen); 633f62c4786SHajimu UMEMOTO memcpy(cp, buf3, certlen); 634f62c4786SHajimu UMEMOTO cp += certlen; 635f62c4786SHajimu UMEMOTO break; 636f62c4786SHajimu UMEMOTO case ns_t_aaaa: 637f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 638f62c4786SHajimu UMEMOTO return (-1); 639f62c4786SHajimu UMEMOTO if (inet_pton(AF_INET6, buf2, &in6a) <= 0) 640f62c4786SHajimu UMEMOTO return (-1); 641f62c4786SHajimu UMEMOTO ShrinkBuffer(NS_IN6ADDRSZ); 642f62c4786SHajimu UMEMOTO memcpy(cp, &in6a, NS_IN6ADDRSZ); 643f62c4786SHajimu UMEMOTO cp += NS_IN6ADDRSZ; 644f62c4786SHajimu UMEMOTO break; 645f62c4786SHajimu UMEMOTO case ns_t_naptr: 646f62c4786SHajimu UMEMOTO /* Order Preference Flags Service Replacement Regexp */ 647f62c4786SHajimu UMEMOTO /* Order */ 648f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 649f62c4786SHajimu UMEMOTO if (n < 0 || n > 65535) 650f62c4786SHajimu UMEMOTO return (-1); 651f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 652f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 653f62c4786SHajimu UMEMOTO /* Preference */ 654f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 655f62c4786SHajimu UMEMOTO if (n < 0 || n > 65535) 656f62c4786SHajimu UMEMOTO return (-1); 657f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 658f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 659f62c4786SHajimu UMEMOTO /* Flags */ 660f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 661f62c4786SHajimu UMEMOTO &startp, endp)) < 0) { 662f62c4786SHajimu UMEMOTO return (-1); 663f62c4786SHajimu UMEMOTO } 664f62c4786SHajimu UMEMOTO if (n > 255) 665f62c4786SHajimu UMEMOTO return (-1); 666f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 667f62c4786SHajimu UMEMOTO *cp++ = n; 668f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 669f62c4786SHajimu UMEMOTO cp += n; 670f62c4786SHajimu UMEMOTO /* Service Classes */ 671f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 672f62c4786SHajimu UMEMOTO &startp, endp)) < 0) { 673f62c4786SHajimu UMEMOTO return (-1); 674f62c4786SHajimu UMEMOTO } 675f62c4786SHajimu UMEMOTO if (n > 255) 676f62c4786SHajimu UMEMOTO return (-1); 677f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 678f62c4786SHajimu UMEMOTO *cp++ = n; 679f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 680f62c4786SHajimu UMEMOTO cp += n; 681f62c4786SHajimu UMEMOTO /* Pattern */ 682f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 683f62c4786SHajimu UMEMOTO &startp, endp)) < 0) { 684f62c4786SHajimu UMEMOTO return (-1); 685f62c4786SHajimu UMEMOTO } 686f62c4786SHajimu UMEMOTO if (n > 255) 687f62c4786SHajimu UMEMOTO return (-1); 688f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 689f62c4786SHajimu UMEMOTO *cp++ = n; 690f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 691f62c4786SHajimu UMEMOTO cp += n; 692f62c4786SHajimu UMEMOTO /* Replacement */ 693f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 694f62c4786SHajimu UMEMOTO return (-1); 695f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, NULL, NULL); 696f62c4786SHajimu UMEMOTO if (n < 0) 697f62c4786SHajimu UMEMOTO return (-1); 698f62c4786SHajimu UMEMOTO cp += n; 699f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 700f62c4786SHajimu UMEMOTO break; 701f62c4786SHajimu UMEMOTO default: 702f62c4786SHajimu UMEMOTO return (-1); 703f62c4786SHajimu UMEMOTO } /*switch*/ 704f62c4786SHajimu UMEMOTO n = (u_int16_t)((cp - sp2) - INT16SZ); 705f62c4786SHajimu UMEMOTO PUTSHORT(n, sp2); 706f62c4786SHajimu UMEMOTO } /*for*/ 707f62c4786SHajimu UMEMOTO 708f62c4786SHajimu UMEMOTO hp->qdcount = htons(counts[0]); 709f62c4786SHajimu UMEMOTO hp->ancount = htons(counts[1]); 710f62c4786SHajimu UMEMOTO hp->nscount = htons(counts[2]); 711f62c4786SHajimu UMEMOTO hp->arcount = htons(counts[3]); 712f62c4786SHajimu UMEMOTO return (cp - buf); 713f62c4786SHajimu UMEMOTO } 714f62c4786SHajimu UMEMOTO 715861249f5SHajimu UMEMOTO /*% 716f62c4786SHajimu UMEMOTO * Get a whitespace delimited word from a string (not file) 717f62c4786SHajimu UMEMOTO * into buf. modify the start pointer to point after the 718f62c4786SHajimu UMEMOTO * word in the string. 719f62c4786SHajimu UMEMOTO */ 720f62c4786SHajimu UMEMOTO static int 721f62c4786SHajimu UMEMOTO getword_str(char *buf, int size, u_char **startpp, u_char *endp) { 722f62c4786SHajimu UMEMOTO char *cp; 723f62c4786SHajimu UMEMOTO int c; 724f62c4786SHajimu UMEMOTO 725f62c4786SHajimu UMEMOTO for (cp = buf; *startpp <= endp; ) { 726f62c4786SHajimu UMEMOTO c = **startpp; 727f62c4786SHajimu UMEMOTO if (isspace(c) || c == '\0') { 728861249f5SHajimu UMEMOTO if (cp != buf) /*%< trailing whitespace */ 729f62c4786SHajimu UMEMOTO break; 730861249f5SHajimu UMEMOTO else { /*%< leading whitespace */ 731f62c4786SHajimu UMEMOTO (*startpp)++; 732f62c4786SHajimu UMEMOTO continue; 733f62c4786SHajimu UMEMOTO } 734f62c4786SHajimu UMEMOTO } 735f62c4786SHajimu UMEMOTO (*startpp)++; 736f62c4786SHajimu UMEMOTO if (cp >= buf+size-1) 737f62c4786SHajimu UMEMOTO break; 738f62c4786SHajimu UMEMOTO *cp++ = (u_char)c; 739f62c4786SHajimu UMEMOTO } 740f62c4786SHajimu UMEMOTO *cp = '\0'; 741f62c4786SHajimu UMEMOTO return (cp != buf); 742f62c4786SHajimu UMEMOTO } 743f62c4786SHajimu UMEMOTO 744861249f5SHajimu UMEMOTO /*% 745f62c4786SHajimu UMEMOTO * get a white spae delimited string from memory. Process quoted strings 746861249f5SHajimu UMEMOTO * and \\DDD escapes. Return length or -1 on error. Returned string may 747f62c4786SHajimu UMEMOTO * contain nulls. 748f62c4786SHajimu UMEMOTO */ 749f62c4786SHajimu UMEMOTO static char digits[] = "0123456789"; 750f62c4786SHajimu UMEMOTO static int 751f62c4786SHajimu UMEMOTO getstr_str(char *buf, int size, u_char **startpp, u_char *endp) { 752f62c4786SHajimu UMEMOTO char *cp; 753f62c4786SHajimu UMEMOTO int c, c1 = 0; 754f62c4786SHajimu UMEMOTO int inquote = 0; 755f62c4786SHajimu UMEMOTO int seen_quote = 0; 756f62c4786SHajimu UMEMOTO int escape = 0; 757f62c4786SHajimu UMEMOTO int dig = 0; 758f62c4786SHajimu UMEMOTO 759f62c4786SHajimu UMEMOTO for (cp = buf; *startpp <= endp; ) { 760f62c4786SHajimu UMEMOTO if ((c = **startpp) == '\0') 761f62c4786SHajimu UMEMOTO break; 762f62c4786SHajimu UMEMOTO /* leading white space */ 763f62c4786SHajimu UMEMOTO if ((cp == buf) && !seen_quote && isspace(c)) { 764f62c4786SHajimu UMEMOTO (*startpp)++; 765f62c4786SHajimu UMEMOTO continue; 766f62c4786SHajimu UMEMOTO } 767f62c4786SHajimu UMEMOTO 768f62c4786SHajimu UMEMOTO switch (c) { 769f62c4786SHajimu UMEMOTO case '\\': 770f62c4786SHajimu UMEMOTO if (!escape) { 771f62c4786SHajimu UMEMOTO escape = 1; 772f62c4786SHajimu UMEMOTO dig = 0; 773f62c4786SHajimu UMEMOTO c1 = 0; 774f62c4786SHajimu UMEMOTO (*startpp)++; 775f62c4786SHajimu UMEMOTO continue; 776f62c4786SHajimu UMEMOTO } 777f62c4786SHajimu UMEMOTO goto do_escape; 778f62c4786SHajimu UMEMOTO case '"': 779f62c4786SHajimu UMEMOTO if (!escape) { 780f62c4786SHajimu UMEMOTO inquote = !inquote; 781f62c4786SHajimu UMEMOTO seen_quote = 1; 782f62c4786SHajimu UMEMOTO (*startpp)++; 783f62c4786SHajimu UMEMOTO continue; 784f62c4786SHajimu UMEMOTO } 785f62c4786SHajimu UMEMOTO /* fall through */ 786f62c4786SHajimu UMEMOTO default: 787f62c4786SHajimu UMEMOTO do_escape: 788f62c4786SHajimu UMEMOTO if (escape) { 789f62c4786SHajimu UMEMOTO switch (c) { 790f62c4786SHajimu UMEMOTO case '0': 791f62c4786SHajimu UMEMOTO case '1': 792f62c4786SHajimu UMEMOTO case '2': 793f62c4786SHajimu UMEMOTO case '3': 794f62c4786SHajimu UMEMOTO case '4': 795f62c4786SHajimu UMEMOTO case '5': 796f62c4786SHajimu UMEMOTO case '6': 797f62c4786SHajimu UMEMOTO case '7': 798f62c4786SHajimu UMEMOTO case '8': 799f62c4786SHajimu UMEMOTO case '9': 800f62c4786SHajimu UMEMOTO c1 = c1 * 10 + 801f62c4786SHajimu UMEMOTO (strchr(digits, c) - digits); 802f62c4786SHajimu UMEMOTO 803f62c4786SHajimu UMEMOTO if (++dig == 3) { 804f62c4786SHajimu UMEMOTO c = c1 &0xff; 805f62c4786SHajimu UMEMOTO break; 806f62c4786SHajimu UMEMOTO } 807f62c4786SHajimu UMEMOTO (*startpp)++; 808f62c4786SHajimu UMEMOTO continue; 809f62c4786SHajimu UMEMOTO } 810f62c4786SHajimu UMEMOTO escape = 0; 811f62c4786SHajimu UMEMOTO } else if (!inquote && isspace(c)) 812f62c4786SHajimu UMEMOTO goto done; 813f62c4786SHajimu UMEMOTO if (cp >= buf+size-1) 814f62c4786SHajimu UMEMOTO goto done; 815f62c4786SHajimu UMEMOTO *cp++ = (u_char)c; 816f62c4786SHajimu UMEMOTO (*startpp)++; 817f62c4786SHajimu UMEMOTO } 818f62c4786SHajimu UMEMOTO } 819f62c4786SHajimu UMEMOTO done: 820f62c4786SHajimu UMEMOTO *cp = '\0'; 821f62c4786SHajimu UMEMOTO return ((cp == buf)? (seen_quote? 0: -1): (cp - buf)); 822f62c4786SHajimu UMEMOTO } 823861249f5SHajimu UMEMOTO 824861249f5SHajimu UMEMOTO /*% 825f62c4786SHajimu UMEMOTO * Get a whitespace delimited base 16 number from a string (not file) into buf 826f62c4786SHajimu UMEMOTO * update the start pointer to point after the number in the string. 827f62c4786SHajimu UMEMOTO */ 828f62c4786SHajimu UMEMOTO static int 829f62c4786SHajimu UMEMOTO gethexnum_str(u_char **startpp, u_char *endp) { 830f62c4786SHajimu UMEMOTO int c, n; 831f62c4786SHajimu UMEMOTO int seendigit = 0; 832f62c4786SHajimu UMEMOTO int m = 0; 833f62c4786SHajimu UMEMOTO 834f62c4786SHajimu UMEMOTO if (*startpp + 2 >= endp || strncasecmp((char *)*startpp, "0x", 2) != 0) 835f62c4786SHajimu UMEMOTO return getnum_str(startpp, endp); 836f62c4786SHajimu UMEMOTO (*startpp)+=2; 837f62c4786SHajimu UMEMOTO for (n = 0; *startpp <= endp; ) { 838f62c4786SHajimu UMEMOTO c = **startpp; 839f62c4786SHajimu UMEMOTO if (isspace(c) || c == '\0') { 840861249f5SHajimu UMEMOTO if (seendigit) /*%< trailing whitespace */ 841f62c4786SHajimu UMEMOTO break; 842861249f5SHajimu UMEMOTO else { /*%< leading whitespace */ 843f62c4786SHajimu UMEMOTO (*startpp)++; 844f62c4786SHajimu UMEMOTO continue; 845f62c4786SHajimu UMEMOTO } 846f62c4786SHajimu UMEMOTO } 847f62c4786SHajimu UMEMOTO if (c == ';') { 848f62c4786SHajimu UMEMOTO while ((*startpp <= endp) && 849f62c4786SHajimu UMEMOTO ((c = **startpp) != '\n')) 850f62c4786SHajimu UMEMOTO (*startpp)++; 851f62c4786SHajimu UMEMOTO if (seendigit) 852f62c4786SHajimu UMEMOTO break; 853f62c4786SHajimu UMEMOTO continue; 854f62c4786SHajimu UMEMOTO } 855f62c4786SHajimu UMEMOTO if (!isxdigit(c)) { 856f62c4786SHajimu UMEMOTO if (c == ')' && seendigit) { 857f62c4786SHajimu UMEMOTO (*startpp)--; 858f62c4786SHajimu UMEMOTO break; 859f62c4786SHajimu UMEMOTO } 860f62c4786SHajimu UMEMOTO return (-1); 861f62c4786SHajimu UMEMOTO } 862f62c4786SHajimu UMEMOTO (*startpp)++; 863f62c4786SHajimu UMEMOTO if (isdigit(c)) 864f62c4786SHajimu UMEMOTO n = n * 16 + (c - '0'); 865f62c4786SHajimu UMEMOTO else 866f62c4786SHajimu UMEMOTO n = n * 16 + (tolower(c) - 'a' + 10); 867f62c4786SHajimu UMEMOTO seendigit = 1; 868f62c4786SHajimu UMEMOTO } 869f62c4786SHajimu UMEMOTO return (n + m); 870f62c4786SHajimu UMEMOTO } 871f62c4786SHajimu UMEMOTO 872861249f5SHajimu UMEMOTO /*% 873f62c4786SHajimu UMEMOTO * Get a whitespace delimited base 10 number from a string (not file) into buf 874f62c4786SHajimu UMEMOTO * update the start pointer to point after the number in the string. 875f62c4786SHajimu UMEMOTO */ 876f62c4786SHajimu UMEMOTO static int 877f62c4786SHajimu UMEMOTO getnum_str(u_char **startpp, u_char *endp) { 878f62c4786SHajimu UMEMOTO int c, n; 879f62c4786SHajimu UMEMOTO int seendigit = 0; 880f62c4786SHajimu UMEMOTO int m = 0; 881f62c4786SHajimu UMEMOTO 882f62c4786SHajimu UMEMOTO for (n = 0; *startpp <= endp; ) { 883f62c4786SHajimu UMEMOTO c = **startpp; 884f62c4786SHajimu UMEMOTO if (isspace(c) || c == '\0') { 885861249f5SHajimu UMEMOTO if (seendigit) /*%< trailing whitespace */ 886f62c4786SHajimu UMEMOTO break; 887861249f5SHajimu UMEMOTO else { /*%< leading whitespace */ 888f62c4786SHajimu UMEMOTO (*startpp)++; 889f62c4786SHajimu UMEMOTO continue; 890f62c4786SHajimu UMEMOTO } 891f62c4786SHajimu UMEMOTO } 892f62c4786SHajimu UMEMOTO if (c == ';') { 893f62c4786SHajimu UMEMOTO while ((*startpp <= endp) && 894f62c4786SHajimu UMEMOTO ((c = **startpp) != '\n')) 895f62c4786SHajimu UMEMOTO (*startpp)++; 896f62c4786SHajimu UMEMOTO if (seendigit) 897f62c4786SHajimu UMEMOTO break; 898f62c4786SHajimu UMEMOTO continue; 899f62c4786SHajimu UMEMOTO } 900f62c4786SHajimu UMEMOTO if (!isdigit(c)) { 901f62c4786SHajimu UMEMOTO if (c == ')' && seendigit) { 902f62c4786SHajimu UMEMOTO (*startpp)--; 903f62c4786SHajimu UMEMOTO break; 904f62c4786SHajimu UMEMOTO } 905f62c4786SHajimu UMEMOTO return (-1); 906f62c4786SHajimu UMEMOTO } 907f62c4786SHajimu UMEMOTO (*startpp)++; 908f62c4786SHajimu UMEMOTO n = n * 10 + (c - '0'); 909f62c4786SHajimu UMEMOTO seendigit = 1; 910f62c4786SHajimu UMEMOTO } 911f62c4786SHajimu UMEMOTO return (n + m); 912f62c4786SHajimu UMEMOTO } 913f62c4786SHajimu UMEMOTO 914861249f5SHajimu UMEMOTO /*% 915f62c4786SHajimu UMEMOTO * Allocate a resource record buffer & save rr info. 916f62c4786SHajimu UMEMOTO */ 917f62c4786SHajimu UMEMOTO ns_updrec * 918f62c4786SHajimu UMEMOTO res_mkupdrec(int section, const char *dname, 919f62c4786SHajimu UMEMOTO u_int class, u_int type, u_long ttl) { 920f62c4786SHajimu UMEMOTO ns_updrec *rrecp = (ns_updrec *)calloc(1, sizeof(ns_updrec)); 921f62c4786SHajimu UMEMOTO 922f62c4786SHajimu UMEMOTO if (!rrecp || !(rrecp->r_dname = strdup(dname))) { 923f62c4786SHajimu UMEMOTO if (rrecp) 924f62c4786SHajimu UMEMOTO free((char *)rrecp); 925f62c4786SHajimu UMEMOTO return (NULL); 926f62c4786SHajimu UMEMOTO } 927f62c4786SHajimu UMEMOTO INIT_LINK(rrecp, r_link); 928f62c4786SHajimu UMEMOTO INIT_LINK(rrecp, r_glink); 929f62c4786SHajimu UMEMOTO rrecp->r_class = (ns_class)class; 930f62c4786SHajimu UMEMOTO rrecp->r_type = (ns_type)type; 931f62c4786SHajimu UMEMOTO rrecp->r_ttl = ttl; 932f62c4786SHajimu UMEMOTO rrecp->r_section = (ns_sect)section; 933f62c4786SHajimu UMEMOTO return (rrecp); 934f62c4786SHajimu UMEMOTO } 935f62c4786SHajimu UMEMOTO 936861249f5SHajimu UMEMOTO /*% 937f62c4786SHajimu UMEMOTO * Free a resource record buffer created by res_mkupdrec. 938f62c4786SHajimu UMEMOTO */ 939f62c4786SHajimu UMEMOTO void 940f62c4786SHajimu UMEMOTO res_freeupdrec(ns_updrec *rrecp) { 941f62c4786SHajimu UMEMOTO /* Note: freeing r_dp is the caller's responsibility. */ 942f62c4786SHajimu UMEMOTO if (rrecp->r_dname != NULL) 943f62c4786SHajimu UMEMOTO free(rrecp->r_dname); 944f62c4786SHajimu UMEMOTO free(rrecp); 945f62c4786SHajimu UMEMOTO } 946f62c4786SHajimu UMEMOTO 947f62c4786SHajimu UMEMOTO struct valuelist { 948f62c4786SHajimu UMEMOTO struct valuelist * next; 949f62c4786SHajimu UMEMOTO struct valuelist * prev; 950f62c4786SHajimu UMEMOTO char * name; 951f62c4786SHajimu UMEMOTO char * proto; 952f62c4786SHajimu UMEMOTO int port; 953f62c4786SHajimu UMEMOTO }; 954f62c4786SHajimu UMEMOTO static struct valuelist *servicelist, *protolist; 955f62c4786SHajimu UMEMOTO 956f62c4786SHajimu UMEMOTO static void 957f62c4786SHajimu UMEMOTO res_buildservicelist() { 958f62c4786SHajimu UMEMOTO struct servent *sp; 959f62c4786SHajimu UMEMOTO struct valuelist *slp; 960f62c4786SHajimu UMEMOTO 961f62c4786SHajimu UMEMOTO #ifdef MAYBE_HESIOD 962f62c4786SHajimu UMEMOTO setservent(0); 963f62c4786SHajimu UMEMOTO #else 964f62c4786SHajimu UMEMOTO setservent(1); 965f62c4786SHajimu UMEMOTO #endif 966f62c4786SHajimu UMEMOTO while ((sp = getservent()) != NULL) { 967f62c4786SHajimu UMEMOTO slp = (struct valuelist *)malloc(sizeof(struct valuelist)); 968f62c4786SHajimu UMEMOTO if (!slp) 969f62c4786SHajimu UMEMOTO break; 970f62c4786SHajimu UMEMOTO slp->name = strdup(sp->s_name); 971f62c4786SHajimu UMEMOTO slp->proto = strdup(sp->s_proto); 972f62c4786SHajimu UMEMOTO if ((slp->name == NULL) || (slp->proto == NULL)) { 973f62c4786SHajimu UMEMOTO if (slp->name) free(slp->name); 974f62c4786SHajimu UMEMOTO if (slp->proto) free(slp->proto); 975f62c4786SHajimu UMEMOTO free(slp); 976f62c4786SHajimu UMEMOTO break; 977f62c4786SHajimu UMEMOTO } 978861249f5SHajimu UMEMOTO slp->port = ntohs((u_int16_t)sp->s_port); /*%< host byt order */ 979f62c4786SHajimu UMEMOTO slp->next = servicelist; 980f62c4786SHajimu UMEMOTO slp->prev = NULL; 981f62c4786SHajimu UMEMOTO if (servicelist) 982f62c4786SHajimu UMEMOTO servicelist->prev = slp; 983f62c4786SHajimu UMEMOTO servicelist = slp; 984f62c4786SHajimu UMEMOTO } 985f62c4786SHajimu UMEMOTO endservent(); 986f62c4786SHajimu UMEMOTO } 987f62c4786SHajimu UMEMOTO 988f62c4786SHajimu UMEMOTO void 989f62c4786SHajimu UMEMOTO res_destroyservicelist() { 990f62c4786SHajimu UMEMOTO struct valuelist *slp, *slp_next; 991f62c4786SHajimu UMEMOTO 992f62c4786SHajimu UMEMOTO for (slp = servicelist; slp != NULL; slp = slp_next) { 993f62c4786SHajimu UMEMOTO slp_next = slp->next; 994f62c4786SHajimu UMEMOTO free(slp->name); 995f62c4786SHajimu UMEMOTO free(slp->proto); 996f62c4786SHajimu UMEMOTO free(slp); 997f62c4786SHajimu UMEMOTO } 998f62c4786SHajimu UMEMOTO servicelist = (struct valuelist *)0; 999f62c4786SHajimu UMEMOTO } 1000f62c4786SHajimu UMEMOTO 1001f62c4786SHajimu UMEMOTO void 1002f62c4786SHajimu UMEMOTO res_buildprotolist(void) { 1003f62c4786SHajimu UMEMOTO struct protoent *pp; 1004f62c4786SHajimu UMEMOTO struct valuelist *slp; 1005f62c4786SHajimu UMEMOTO 1006f62c4786SHajimu UMEMOTO #ifdef MAYBE_HESIOD 1007f62c4786SHajimu UMEMOTO setprotoent(0); 1008f62c4786SHajimu UMEMOTO #else 1009f62c4786SHajimu UMEMOTO setprotoent(1); 1010f62c4786SHajimu UMEMOTO #endif 1011f62c4786SHajimu UMEMOTO while ((pp = getprotoent()) != NULL) { 1012f62c4786SHajimu UMEMOTO slp = (struct valuelist *)malloc(sizeof(struct valuelist)); 1013f62c4786SHajimu UMEMOTO if (!slp) 1014f62c4786SHajimu UMEMOTO break; 1015f62c4786SHajimu UMEMOTO slp->name = strdup(pp->p_name); 1016f62c4786SHajimu UMEMOTO if (slp->name == NULL) { 1017f62c4786SHajimu UMEMOTO free(slp); 1018f62c4786SHajimu UMEMOTO break; 1019f62c4786SHajimu UMEMOTO } 1020861249f5SHajimu UMEMOTO slp->port = pp->p_proto; /*%< host byte order */ 1021f62c4786SHajimu UMEMOTO slp->next = protolist; 1022f62c4786SHajimu UMEMOTO slp->prev = NULL; 1023f62c4786SHajimu UMEMOTO if (protolist) 1024f62c4786SHajimu UMEMOTO protolist->prev = slp; 1025f62c4786SHajimu UMEMOTO protolist = slp; 1026f62c4786SHajimu UMEMOTO } 1027f62c4786SHajimu UMEMOTO endprotoent(); 1028f62c4786SHajimu UMEMOTO } 1029f62c4786SHajimu UMEMOTO 1030f62c4786SHajimu UMEMOTO void 1031f62c4786SHajimu UMEMOTO res_destroyprotolist(void) { 1032f62c4786SHajimu UMEMOTO struct valuelist *plp, *plp_next; 1033f62c4786SHajimu UMEMOTO 1034f62c4786SHajimu UMEMOTO for (plp = protolist; plp != NULL; plp = plp_next) { 1035f62c4786SHajimu UMEMOTO plp_next = plp->next; 1036f62c4786SHajimu UMEMOTO free(plp->name); 1037f62c4786SHajimu UMEMOTO free(plp); 1038f62c4786SHajimu UMEMOTO } 1039f62c4786SHajimu UMEMOTO protolist = (struct valuelist *)0; 1040f62c4786SHajimu UMEMOTO } 1041f62c4786SHajimu UMEMOTO 1042f62c4786SHajimu UMEMOTO static int 1043f62c4786SHajimu UMEMOTO findservice(const char *s, struct valuelist **list) { 1044f62c4786SHajimu UMEMOTO struct valuelist *lp = *list; 1045f62c4786SHajimu UMEMOTO int n; 1046f62c4786SHajimu UMEMOTO 1047f62c4786SHajimu UMEMOTO for (; lp != NULL; lp = lp->next) 1048f62c4786SHajimu UMEMOTO if (strcasecmp(lp->name, s) == 0) { 1049f62c4786SHajimu UMEMOTO if (lp != *list) { 1050f62c4786SHajimu UMEMOTO lp->prev->next = lp->next; 1051f62c4786SHajimu UMEMOTO if (lp->next) 1052f62c4786SHajimu UMEMOTO lp->next->prev = lp->prev; 1053f62c4786SHajimu UMEMOTO (*list)->prev = lp; 1054f62c4786SHajimu UMEMOTO lp->next = *list; 1055f62c4786SHajimu UMEMOTO *list = lp; 1056f62c4786SHajimu UMEMOTO } 1057861249f5SHajimu UMEMOTO return (lp->port); /*%< host byte order */ 1058f62c4786SHajimu UMEMOTO } 1059f62c4786SHajimu UMEMOTO if (sscanf(s, "%d", &n) != 1 || n <= 0) 1060f62c4786SHajimu UMEMOTO n = -1; 1061f62c4786SHajimu UMEMOTO return (n); 1062f62c4786SHajimu UMEMOTO } 1063f62c4786SHajimu UMEMOTO 1064861249f5SHajimu UMEMOTO /*% 1065f62c4786SHajimu UMEMOTO * Convert service name or (ascii) number to int. 1066f62c4786SHajimu UMEMOTO */ 1067f62c4786SHajimu UMEMOTO int 1068f62c4786SHajimu UMEMOTO res_servicenumber(const char *p) { 1069f62c4786SHajimu UMEMOTO if (servicelist == (struct valuelist *)0) 1070f62c4786SHajimu UMEMOTO res_buildservicelist(); 1071f62c4786SHajimu UMEMOTO return (findservice(p, &servicelist)); 1072f62c4786SHajimu UMEMOTO } 1073f62c4786SHajimu UMEMOTO 1074861249f5SHajimu UMEMOTO /*% 1075f62c4786SHajimu UMEMOTO * Convert protocol name or (ascii) number to int. 1076f62c4786SHajimu UMEMOTO */ 1077f62c4786SHajimu UMEMOTO int 1078f62c4786SHajimu UMEMOTO res_protocolnumber(const char *p) { 1079f62c4786SHajimu UMEMOTO if (protolist == (struct valuelist *)0) 1080f62c4786SHajimu UMEMOTO res_buildprotolist(); 1081f62c4786SHajimu UMEMOTO return (findservice(p, &protolist)); 1082f62c4786SHajimu UMEMOTO } 1083f62c4786SHajimu UMEMOTO 1084f62c4786SHajimu UMEMOTO static struct servent * 1085861249f5SHajimu UMEMOTO cgetservbyport(u_int16_t port, const char *proto) { /*%< Host byte order. */ 1086f62c4786SHajimu UMEMOTO struct valuelist **list = &servicelist; 1087f62c4786SHajimu UMEMOTO struct valuelist *lp = *list; 1088f62c4786SHajimu UMEMOTO static struct servent serv; 1089f62c4786SHajimu UMEMOTO 1090f62c4786SHajimu UMEMOTO port = ntohs(port); 1091f62c4786SHajimu UMEMOTO for (; lp != NULL; lp = lp->next) { 1092861249f5SHajimu UMEMOTO if (port != (u_int16_t)lp->port) /*%< Host byte order. */ 1093f62c4786SHajimu UMEMOTO continue; 1094f62c4786SHajimu UMEMOTO if (strcasecmp(lp->proto, proto) == 0) { 1095f62c4786SHajimu UMEMOTO if (lp != *list) { 1096f62c4786SHajimu UMEMOTO lp->prev->next = lp->next; 1097f62c4786SHajimu UMEMOTO if (lp->next) 1098f62c4786SHajimu UMEMOTO lp->next->prev = lp->prev; 1099f62c4786SHajimu UMEMOTO (*list)->prev = lp; 1100f62c4786SHajimu UMEMOTO lp->next = *list; 1101f62c4786SHajimu UMEMOTO *list = lp; 1102f62c4786SHajimu UMEMOTO } 1103f62c4786SHajimu UMEMOTO serv.s_name = lp->name; 1104f62c4786SHajimu UMEMOTO serv.s_port = htons((u_int16_t)lp->port); 1105f62c4786SHajimu UMEMOTO serv.s_proto = lp->proto; 1106f62c4786SHajimu UMEMOTO return (&serv); 1107f62c4786SHajimu UMEMOTO } 1108f62c4786SHajimu UMEMOTO } 1109f62c4786SHajimu UMEMOTO return (0); 1110f62c4786SHajimu UMEMOTO } 1111f62c4786SHajimu UMEMOTO 1112f62c4786SHajimu UMEMOTO static struct protoent * 1113861249f5SHajimu UMEMOTO cgetprotobynumber(int proto) { /*%< Host byte order. */ 1114f62c4786SHajimu UMEMOTO struct valuelist **list = &protolist; 1115f62c4786SHajimu UMEMOTO struct valuelist *lp = *list; 1116f62c4786SHajimu UMEMOTO static struct protoent prot; 1117f62c4786SHajimu UMEMOTO 1118f62c4786SHajimu UMEMOTO for (; lp != NULL; lp = lp->next) 1119861249f5SHajimu UMEMOTO if (lp->port == proto) { /*%< Host byte order. */ 1120f62c4786SHajimu UMEMOTO if (lp != *list) { 1121f62c4786SHajimu UMEMOTO lp->prev->next = lp->next; 1122f62c4786SHajimu UMEMOTO if (lp->next) 1123f62c4786SHajimu UMEMOTO lp->next->prev = lp->prev; 1124f62c4786SHajimu UMEMOTO (*list)->prev = lp; 1125f62c4786SHajimu UMEMOTO lp->next = *list; 1126f62c4786SHajimu UMEMOTO *list = lp; 1127f62c4786SHajimu UMEMOTO } 1128f62c4786SHajimu UMEMOTO prot.p_name = lp->name; 1129861249f5SHajimu UMEMOTO prot.p_proto = lp->port; /*%< Host byte order. */ 1130f62c4786SHajimu UMEMOTO return (&prot); 1131f62c4786SHajimu UMEMOTO } 1132f62c4786SHajimu UMEMOTO return (0); 1133f62c4786SHajimu UMEMOTO } 1134f62c4786SHajimu UMEMOTO 1135f62c4786SHajimu UMEMOTO const char * 1136f62c4786SHajimu UMEMOTO res_protocolname(int num) { 1137f62c4786SHajimu UMEMOTO static char number[8]; 1138f62c4786SHajimu UMEMOTO struct protoent *pp; 1139f62c4786SHajimu UMEMOTO 1140f62c4786SHajimu UMEMOTO if (protolist == (struct valuelist *)0) 1141f62c4786SHajimu UMEMOTO res_buildprotolist(); 1142f62c4786SHajimu UMEMOTO pp = cgetprotobynumber(num); 1143f62c4786SHajimu UMEMOTO if (pp == 0) { 1144f62c4786SHajimu UMEMOTO (void) sprintf(number, "%d", num); 1145f62c4786SHajimu UMEMOTO return (number); 1146f62c4786SHajimu UMEMOTO } 1147f62c4786SHajimu UMEMOTO return (pp->p_name); 1148f62c4786SHajimu UMEMOTO } 1149f62c4786SHajimu UMEMOTO 1150f62c4786SHajimu UMEMOTO const char * 1151861249f5SHajimu UMEMOTO res_servicename(u_int16_t port, const char *proto) { /*%< Host byte order. */ 1152f62c4786SHajimu UMEMOTO static char number[8]; 1153f62c4786SHajimu UMEMOTO struct servent *ss; 1154f62c4786SHajimu UMEMOTO 1155f62c4786SHajimu UMEMOTO if (servicelist == (struct valuelist *)0) 1156f62c4786SHajimu UMEMOTO res_buildservicelist(); 1157f62c4786SHajimu UMEMOTO ss = cgetservbyport(htons(port), proto); 1158f62c4786SHajimu UMEMOTO if (ss == 0) { 1159f62c4786SHajimu UMEMOTO (void) sprintf(number, "%d", port); 1160f62c4786SHajimu UMEMOTO return (number); 1161f62c4786SHajimu UMEMOTO } 1162f62c4786SHajimu UMEMOTO return (ss->s_name); 1163f62c4786SHajimu UMEMOTO } 1164