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-rw-r--r--lib/libc/net/Makefile.inc3
-rw-r--r--lib/libc/net/Symbol.map4
-rw-r--r--lib/libc/net/res_mkupdate.c406
-rw-r--r--lib/libc/net/res_update.c522
4 files changed, 0 insertions, 935 deletions
diff --git a/lib/libc/net/Makefile.inc b/lib/libc/net/Makefile.inc
index 9921f8d..2d710d0 100644
--- a/lib/libc/net/Makefile.inc
+++ b/lib/libc/net/Makefile.inc
@@ -19,9 +19,6 @@ SRCS+= addr2ascii.c ascii2addr.c base64.c ether_addr.c eui64.c \
SRCS+= nscache.c nscachedcli.c
.endif
-# for binary backward compatibility against FreeBSD 6.X and earlier
-SRCS+= res_mkupdate.c res_update.c
-
SYM_MAPS+=${.CURDIR}/net/Symbol.map
CFLAGS+=-DINET6 -I${.OBJDIR}
diff --git a/lib/libc/net/Symbol.map b/lib/libc/net/Symbol.map
index 849d392..908d651 100644
--- a/lib/libc/net/Symbol.map
+++ b/lib/libc/net/Symbol.map
@@ -103,10 +103,6 @@ FBSD_1.0 {
iruserok_sa;
rcmdsh;
recv;
- __res_freeupdrec;
- __res_mkupdrec;
- __res_nmkupdate;
- __res_nupdate;
inet6_rthdr_space;
inet6_rthdr_init;
inet6_rthdr_add;
diff --git a/lib/libc/net/res_mkupdate.c b/lib/libc/net/res_mkupdate.c
deleted file mode 100644
index ebcaba2..0000000
--- a/lib/libc/net/res_mkupdate.c
+++ /dev/null
@@ -1,406 +0,0 @@
-/*
- * Copyright (c) 1996 by Internet Software Consortium.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
- * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
- * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
- * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
- * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
- * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- * SOFTWARE.
- */
-
-/*
- * Based on the Dynamic DNS reference implementation by Viraj Bais
- * <viraj_bais@ccm.fm.intel.com>
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/types.h>
-#include <sys/param.h>
-
-#include <netinet/in.h>
-#include <arpa/nameser.h>
-#include <arpa/inet.h>
-
-#include <limits.h>
-#include <netdb.h>
-#include <resolv.h>
-#include <res_update.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <ctype.h>
-
-#include "res_config.h"
-
-static int getnum_str(u_char **, u_char *);
-static int getword_str(char *, int, u_char **, u_char *);
-
-#define ShrinkBuffer(x) if ((buflen -= x) < 0) return (-2);
-
-/*
- * Form update packets.
- * Returns the size of the resulting packet if no error
- * On error,
- * returns -1 if error in reading a word/number in rdata
- * portion for update packets
- * -2 if length of buffer passed is insufficient
- * -3 if zone section is not the first section in
- * the linked list, or section order has a problem
- * -4 on a number overflow
- * -5 unknown operation or no records
- */
-int
-res_nmkupdate(res_state statp, ns_updrec *rrecp_in, u_char *buf, int buflen) {
- ns_updrec *rrecp_start = rrecp_in;
- HEADER *hp;
- u_char *cp, *sp2, *startp, *endp;
- int n, i, soanum, multiline;
- ns_updrec *rrecp;
- struct in_addr ina;
- char buf2[MAXDNAME];
- int section, numrrs = 0, counts[ns_s_max];
- u_int16_t rtype, rclass;
- u_int32_t n1, rttl;
- u_char *dnptrs[20], **dpp, **lastdnptr;
-
- /*
- * Initialize header fields.
- */
- if ((buf == NULL) || (buflen < HFIXEDSZ))
- return (-1);
- memset(buf, 0, HFIXEDSZ);
- hp = (HEADER *) buf;
- hp->id = htons(++statp->id);
- hp->opcode = ns_o_update;
- hp->rcode = NOERROR;
- cp = buf + HFIXEDSZ;
- buflen -= HFIXEDSZ;
- dpp = dnptrs;
- *dpp++ = buf;
- *dpp++ = NULL;
- lastdnptr = dnptrs + sizeof dnptrs / sizeof dnptrs[0];
-
- if (rrecp_start == NULL)
- return (-5);
- else if (rrecp_start->r_section != S_ZONE)
- return (-3);
-
- memset(counts, 0, sizeof counts);
- for (rrecp = rrecp_start; rrecp; rrecp = rrecp->r_grpnext) {
- numrrs++;
- section = rrecp->r_section;
- if (section < 0 || section >= ns_s_max)
- return (-1);
- counts[section]++;
- for (i = section + 1; i < ns_s_max; i++)
- if (counts[i])
- return (-3);
- rtype = rrecp->r_type;
- rclass = rrecp->r_class;
- rttl = rrecp->r_ttl;
- /* overload class and type */
- if (section == S_PREREQ) {
- rttl = 0;
- switch (rrecp->r_opcode) {
- case YXDOMAIN:
- rclass = C_ANY;
- rtype = T_ANY;
- rrecp->r_size = 0;
- break;
- case NXDOMAIN:
- rclass = C_NONE;
- rtype = T_ANY;
- rrecp->r_size = 0;
- break;
- case NXRRSET:
- rclass = C_NONE;
- rrecp->r_size = 0;
- break;
- case YXRRSET:
- if (rrecp->r_size == 0)
- rclass = C_ANY;
- break;
- default:
- fprintf(stderr,
- "res_nmkupdate: incorrect opcode: %d\n",
- rrecp->r_opcode);
- fflush(stderr);
- return (-1);
- }
- } else if (section == S_UPDATE) {
- switch (rrecp->r_opcode) {
- case DELETE:
- rclass = rrecp->r_size == 0 ? C_ANY : C_NONE;
- break;
- case ADD:
- break;
- default:
- fprintf(stderr,
- "res_nmkupdate: incorrect opcode: %d\n",
- rrecp->r_opcode);
- fflush(stderr);
- return (-1);
- }
- }
-
- /*
- * XXX appending default domain to owner name is omitted,
- * fqdn must be provided
- */
- if ((n = dn_comp(rrecp->r_dname, cp, buflen, dnptrs,
- lastdnptr)) < 0)
- return (-1);
- cp += n;
- ShrinkBuffer(n + 2*INT16SZ);
- PUTSHORT(rtype, cp);
- PUTSHORT(rclass, cp);
- if (section == S_ZONE) {
- if (numrrs != 1 || rrecp->r_type != T_SOA)
- return (-3);
- continue;
- }
- ShrinkBuffer(INT32SZ + INT16SZ);
- PUTLONG(rttl, cp);
- sp2 = cp; /* save pointer to length byte */
- cp += INT16SZ;
- if (rrecp->r_size == 0) {
- if (section == S_UPDATE && rclass != C_ANY)
- return (-1);
- else {
- PUTSHORT(0, sp2);
- continue;
- }
- }
- startp = rrecp->r_data;
- endp = startp + rrecp->r_size - 1;
- /* XXX this should be done centrally. */
- switch (rrecp->r_type) {
- case T_A:
- if (!getword_str(buf2, sizeof buf2, &startp, endp))
- return (-1);
- if (!inet_aton(buf2, &ina))
- return (-1);
- n1 = ntohl(ina.s_addr);
- ShrinkBuffer(INT32SZ);
- PUTLONG(n1, cp);
- break;
- case T_CNAME:
- case T_MB:
- case T_MG:
- case T_MR:
- case T_NS:
- case T_PTR:
- if (!getword_str(buf2, sizeof buf2, &startp, endp))
- return (-1);
- n = dn_comp(buf2, cp, buflen, dnptrs, lastdnptr);
- if (n < 0)
- return (-1);
- cp += n;
- ShrinkBuffer(n);
- break;
- case T_MINFO:
- case T_SOA:
- case T_RP:
- for (i = 0; i < 2; i++) {
- if (!getword_str(buf2, sizeof buf2, &startp,
- endp))
- return (-1);
- n = dn_comp(buf2, cp, buflen,
- dnptrs, lastdnptr);
- if (n < 0)
- return (-1);
- cp += n;
- ShrinkBuffer(n);
- }
- if (rrecp->r_type == T_SOA) {
- ShrinkBuffer(5 * INT32SZ);
- while (isspace(*startp) || !*startp)
- startp++;
- if (*startp == '(') {
- multiline = 1;
- startp++;
- } else
- multiline = 0;
- /* serial, refresh, retry, expire, minimum */
- for (i = 0; i < 5; i++) {
- soanum = getnum_str(&startp, endp);
- if (soanum < 0)
- return (-1);
- PUTLONG(soanum, cp);
- }
- if (multiline) {
- while (isspace(*startp) || !*startp)
- startp++;
- if (*startp != ')')
- return (-1);
- }
- }
- break;
- case T_MX:
- case T_AFSDB:
- case T_RT:
- n = getnum_str(&startp, endp);
- if (n < 0)
- return (-1);
- PUTSHORT(n, cp);
- ShrinkBuffer(INT16SZ);
- if (!getword_str(buf2, sizeof buf2, &startp, endp))
- return (-1);
- n = dn_comp(buf2, cp, buflen, dnptrs, lastdnptr);
- if (n < 0)
- return (-1);
- cp += n;
- ShrinkBuffer(n);
- break;
- case T_PX:
- n = getnum_str(&startp, endp);
- if (n < 0)
- return (-1);
- PUTSHORT(n, cp);
- ShrinkBuffer(INT16SZ);
- for (i = 0; i < 2; i++) {
- if (!getword_str(buf2, sizeof buf2, &startp,
- endp))
- return (-1);
- n = dn_comp(buf2, cp, buflen, dnptrs,
- lastdnptr);
- if (n < 0)
- return (-1);
- cp += n;
- ShrinkBuffer(n);
- }
- break;
- case T_WKS:
- case T_HINFO:
- case T_TXT:
- case T_X25:
- case T_ISDN:
- case T_NSAP:
- case T_LOC:
- /* XXX - more fine tuning needed here */
- ShrinkBuffer(rrecp->r_size);
- memcpy(cp, rrecp->r_data, rrecp->r_size);
- cp += rrecp->r_size;
- break;
- default:
- return (-1);
- } /*switch*/
- n = (u_int16_t)((cp - sp2) - INT16SZ);
- PUTSHORT(n, sp2);
- } /*for*/
-
- hp->qdcount = htons(counts[0]);
- hp->ancount = htons(counts[1]);
- hp->nscount = htons(counts[2]);
- hp->arcount = htons(counts[3]);
- return (cp - buf);
-}
-
-/*
- * Get a whitespace delimited word from a string (not file)
- * into buf. modify the start pointer to point after the
- * word in the string.
- */
-static int
-getword_str(char *buf, int size, u_char **startpp, u_char *endp) {
- char *cp;
- int c;
-
- for (cp = buf; *startpp <= endp; ) {
- c = **startpp;
- if (isspace(c) || c == '\0') {
- if (cp != buf) /* trailing whitespace */
- break;
- else { /* leading whitespace */
- (*startpp)++;
- continue;
- }
- }
- (*startpp)++;
- if (cp >= buf+size-1)
- break;
- *cp++ = (u_char)c;
- }
- *cp = '\0';
- return (cp != buf);
-}
-
-/*
- * Get a whitespace delimited number from a string (not file) into buf
- * update the start pointer to point after the number in the string.
- */
-static int
-getnum_str(u_char **startpp, u_char *endp) {
- int c, n;
- int seendigit = 0;
- int m = 0;
-
- for (n = 0; *startpp <= endp; ) {
- c = **startpp;
- if (isspace(c) || c == '\0') {
- if (seendigit) /* trailing whitespace */
- break;
- else { /* leading whitespace */
- (*startpp)++;
- continue;
- }
- }
- if (c == ';') {
- while ((*startpp <= endp) &&
- ((c = **startpp) != '\n'))
- (*startpp)++;
- if (seendigit)
- break;
- continue;
- }
- if (!isdigit(c)) {
- if (c == ')' && seendigit) {
- (*startpp)--;
- break;
- }
- return (-1);
- }
- (*startpp)++;
- n = n * 10 + (c - '0');
- seendigit = 1;
- }
- return (n + m);
-}
-
-/*
- * Allocate a resource record buffer & save rr info.
- */
-ns_updrec *
-res_mkupdrec(int section, const char *dname,
- u_int class, u_int type, u_long ttl) {
- ns_updrec *rrecp = (ns_updrec *)calloc(1, sizeof(ns_updrec));
-
- if (!rrecp || !(rrecp->r_dname = strdup(dname)))
- return (NULL);
- rrecp->r_class = class;
- rrecp->r_type = type;
- rrecp->r_ttl = ttl;
- rrecp->r_section = section;
- return (rrecp);
-}
-
-/*
- * Free a resource record buffer created by res_mkupdrec.
- */
-void
-res_freeupdrec(ns_updrec *rrecp) {
- /* Note: freeing r_dp is the caller's responsibility. */
- if (rrecp->r_dname != NULL)
- free(rrecp->r_dname);
- free(rrecp);
-}
diff --git a/lib/libc/net/res_update.c b/lib/libc/net/res_update.c
deleted file mode 100644
index 46f1efa..0000000
--- a/lib/libc/net/res_update.c
+++ /dev/null
@@ -1,522 +0,0 @@
-/*
- * Copyright (c) 1996 by Internet Software Consortium.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
- * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
- * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
- * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
- * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
- * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- * SOFTWARE.
- */
-
-/*
- * Based on the Dynamic DNS reference implementation by Viraj Bais
- * <viraj_bais@ccm.fm.intel.com>
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/socket.h>
-#include <sys/time.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <arpa/nameser.h>
-#include <limits.h>
-#include <netdb.h>
-#include <resolv.h>
-#include <res_update.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-/*
- * Separate a linked list of records into groups so that all records
- * in a group will belong to a single zone on the nameserver.
- * Create a dynamic update packet for each zone and send it to the
- * nameservers for that zone, and await answer.
- * Abort if error occurs in updating any zone.
- * Return the number of zones updated on success, < 0 on error.
- *
- * On error, caller must deal with the unsynchronized zones
- * eg. an A record might have been successfully added to the forward
- * zone but the corresponding PTR record would be missing if error
- * was encountered while updating the reverse zone.
- */
-
-#define NSMAX 16
-
-struct ns1 {
- char nsname[MAXDNAME];
- struct in_addr nsaddr1;
-};
-
-struct zonegrp {
- char z_origin[MAXDNAME];
- int16_t z_class;
- char z_soardata[MAXDNAME + 5 * INT32SZ];
- struct ns1 z_ns[NSMAX];
- int z_nscount;
- ns_updrec * z_rr;
- struct zonegrp *z_next;
-};
-
-
-int
-res_nupdate(res_state statp, ns_updrec *rrecp_in, ns_tsig_key *key) {
- ns_updrec *rrecp, *tmprrecp;
- u_char buf[PACKETSZ], answer[PACKETSZ], packet[2*PACKETSZ];
- char name[MAXDNAME], zname[MAXDNAME], primary[MAXDNAME],
- mailaddr[MAXDNAME];
- u_char soardata[2*MAXCDNAME+5*INT32SZ];
- char *dname, *svdname, *cp1, *target;
- u_char *cp, *eom;
- HEADER *hp = (HEADER *) answer;
- struct zonegrp *zptr = NULL, *tmpzptr, *prevzptr, *zgrp_start = NULL;
- int i, j, k = 0, n, ancount, nscount, arcount, rcode, rdatasize,
- newgroup, done, myzone, seen_before, numzones = 0;
- u_int16_t dlen, class, qclass, type, qtype;
- u_int32_t ttl;
-
- if (key != NULL) {
- /* TSIG is not supported. */
- RES_SET_H_ERRNO(statp, NO_RECOVERY);
- return (-1);
- }
-
- for (rrecp = rrecp_in; rrecp; rrecp = rrecp->r_next) {
- dname = rrecp->r_dname;
- n = strlen(dname);
- if (dname[n-1] == '.')
- dname[n-1] = '\0';
- qtype = T_SOA;
- qclass = rrecp->r_class;
- done = 0;
- seen_before = 0;
-
- while (!done && dname) {
- if (qtype == T_SOA) {
- for (tmpzptr = zgrp_start;
- tmpzptr && !seen_before;
- tmpzptr = tmpzptr->z_next) {
- if (strcasecmp(dname,
- tmpzptr->z_origin) == 0 &&
- tmpzptr->z_class == qclass)
- seen_before++;
- for (tmprrecp = tmpzptr->z_rr;
- tmprrecp && !seen_before;
- tmprrecp = tmprrecp->r_grpnext)
- if (strcasecmp(dname, tmprrecp->r_dname) == 0
- && tmprrecp->r_class == qclass) {
- seen_before++;
- break;
- }
- if (seen_before) {
- /*
- * Append to the end of
- * current group.
- */
- for (tmprrecp = tmpzptr->z_rr;
- tmprrecp->r_grpnext;
- tmprrecp = tmprrecp->r_grpnext)
- (void)NULL;
- tmprrecp->r_grpnext = rrecp;
- rrecp->r_grpnext = NULL;
- done = 1;
- break;
- }
- }
- } else if (qtype == T_A) {
- for (tmpzptr = zgrp_start;
- tmpzptr && !done;
- tmpzptr = tmpzptr->z_next)
- for (i = 0; i < tmpzptr->z_nscount; i++)
- if (tmpzptr->z_class == qclass &&
- strcasecmp(tmpzptr->z_ns[i].nsname,
- dname) == 0 &&
- tmpzptr->z_ns[i].nsaddr1.s_addr != 0) {
- zptr->z_ns[k].nsaddr1.s_addr =
- tmpzptr->z_ns[i].nsaddr1.s_addr;
- done = 1;
- break;
- }
- }
- if (done)
- break;
- n = res_nmkquery(statp, QUERY, dname, qclass, qtype, NULL,
- 0, NULL, buf, sizeof buf);
- if (n <= 0) {
- fprintf(stderr, "res_nupdate: mkquery failed\n");
- return (n);
- }
- n = res_nsend(statp, buf, n, answer, sizeof answer);
- if (n < 0) {
- fprintf(stderr, "res_nupdate: send error for %s\n",
- rrecp->r_dname);
- return (n);
- } else if (n > sizeof(answer)) {
- fprintf(stderr, "res_nupdate: buffer too small\n");
- return (-1);
- }
- if (n < HFIXEDSZ)
- return (-1);
- ancount = ntohs(hp->ancount);
- nscount = ntohs(hp->nscount);
- arcount = ntohs(hp->arcount);
- rcode = hp->rcode;
- cp = answer + HFIXEDSZ;
- eom = answer + n;
- /* skip the question section */
- n = dn_skipname(cp, eom);
- if (n < 0 || cp + n + 2 * INT16SZ > eom)
- return (-1);
- cp += n + 2 * INT16SZ;
-
- if (qtype == T_SOA) {
- if (ancount == 0 && nscount == 0 && arcount == 0) {
- /*
- * if (rcode == NOERROR) then the dname exists but
- * has no soa record associated with it.
- * if (rcode == NXDOMAIN) then the dname does not
- * exist and the server is replying out of NCACHE.
- * in either case, proceed with the next try
- */
- dname = strchr(dname, '.');
- if (dname != NULL)
- dname++;
- continue;
- } else if ((rcode == NOERROR || rcode == NXDOMAIN) &&
- ancount == 0 &&
- nscount == 1 && arcount == 0) {
- /*
- * name/data does not exist, soa record supplied in the
- * authority section
- */
- /* authority section must contain the soa record */
- if ((n = dn_expand(answer, eom, cp, zname,
- sizeof zname)) < 0)
- return (n);
- cp += n;
- if (cp + 2 * INT16SZ > eom)
- return (-1);
- GETSHORT(type, cp);
- GETSHORT(class, cp);
- if (type != T_SOA || class != qclass) {
- fprintf(stderr, "unknown answer\n");
- return (-1);
- }
- myzone = 0;
- svdname = dname;
- while (dname)
- if (strcasecmp(dname, zname) == 0) {
- myzone = 1;
- break;
- } else if ((dname = strchr(dname, '.')) != NULL)
- dname++;
- if (!myzone) {
- dname = strchr(svdname, '.');
- if (dname != NULL)
- dname++;
- continue;
- }
- nscount = 0;
- /* fallthrough */
- } else if (rcode == NOERROR && ancount == 1) {
- /*
- * found the zone name
- * new servers will supply NS records for the zone
- * in authority section and A records for those
- * nameservers in the additional section
- * older servers have to be explicitly queried for
- * NS records for the zone
- */
- /* answer section must contain the soa record */
- if ((n = dn_expand(answer, eom, cp, zname,
- sizeof zname)) < 0)
- return (n);
- else
- cp += n;
- if (cp + 2 * INT16SZ > eom)
- return (-1);
- GETSHORT(type, cp);
- GETSHORT(class, cp);
- if (type == T_CNAME) {
- dname = strchr(dname, '.');
- if (dname != NULL)
- dname++;
- continue;
- }
- if (strcasecmp(dname, zname) != 0 ||
- type != T_SOA ||
- class != rrecp->r_class) {
- fprintf(stderr, "unknown answer\n");
- return (-1);
- }
- /* FALLTHROUGH */
- } else {
- fprintf(stderr,
- "unknown response: ans=%d, auth=%d, add=%d, rcode=%d\n",
- ancount, nscount, arcount, hp->rcode);
- return (-1);
- }
- if (cp + INT32SZ + INT16SZ > eom)
- return (-1);
- /* continue processing the soa record */
- GETLONG(ttl, cp);
- GETSHORT(dlen, cp);
- if (cp + dlen > eom)
- return (-1);
- newgroup = 1;
- zptr = zgrp_start;
- prevzptr = NULL;
- while (zptr) {
- if (strcasecmp(zname, zptr->z_origin) == 0 &&
- type == T_SOA && class == qclass) {
- newgroup = 0;
- break;
- }
- prevzptr = zptr;
- zptr = zptr->z_next;
- }
- if (!newgroup) {
- for (tmprrecp = zptr->z_rr;
- tmprrecp->r_grpnext;
- tmprrecp = tmprrecp->r_grpnext)
- ;
- tmprrecp->r_grpnext = rrecp;
- rrecp->r_grpnext = NULL;
- done = 1;
- cp += dlen;
- break;
- } else {
- if ((n = dn_expand(answer, eom, cp, primary,
- sizeof primary)) < 0)
- return (n);
- cp += n;
- /*
- * We don't have to bounds check here because the
- * next use of 'cp' is in dn_expand().
- */
- cp1 = (char *)soardata;
- strcpy(cp1, primary);
- cp1 += strlen(cp1) + 1;
- if ((n = dn_expand(answer, eom, cp, mailaddr,
- sizeof mailaddr)) < 0)
- return (n);
- cp += n;
- strcpy(cp1, mailaddr);
- cp1 += strlen(cp1) + 1;
- if (cp + 5*INT32SZ > eom)
- return (-1);
- memcpy(cp1, cp, 5*INT32SZ);
- cp += 5*INT32SZ;
- cp1 += 5*INT32SZ;
- rdatasize = (u_char *)cp1 - soardata;
- zptr = calloc(1, sizeof(struct zonegrp));
- if (zptr == NULL)
- return (-1);
- if (zgrp_start == NULL)
- zgrp_start = zptr;
- else
- prevzptr->z_next = zptr;
- zptr->z_rr = rrecp;
- rrecp->r_grpnext = NULL;
- strcpy(zptr->z_origin, zname);
- zptr->z_class = class;
- memcpy(zptr->z_soardata, soardata, rdatasize);
- /* fallthrough to process NS and A records */
- }
- } else if (qtype == T_NS) {
- if (rcode == NOERROR && ancount > 0) {
- strcpy(zname, dname);
- for (zptr = zgrp_start; zptr; zptr = zptr->z_next) {
- if (strcasecmp(zname, zptr->z_origin) == 0)
- break;
- }
- if (zptr == NULL)
- /* should not happen */
- return (-1);
- if (nscount > 0) {
- /*
- * answer and authority sections contain
- * the same information, skip answer section
- */
- for (j = 0; j < ancount; j++) {
- n = dn_skipname(cp, eom);
- if (n < 0)
- return (-1);
- n += 2*INT16SZ + INT32SZ;
- if (cp + n + INT16SZ > eom)
- return (-1);
- cp += n;
- GETSHORT(dlen, cp);
- cp += dlen;
- }
- } else
- nscount = ancount;
- /* fallthrough to process NS and A records */
- } else {
- fprintf(stderr, "cannot determine nameservers for %s:\
-ans=%d, auth=%d, add=%d, rcode=%d\n",
- dname, ancount, nscount, arcount, hp->rcode);
- return (-1);
- }
- } else if (qtype == T_A) {
- if (rcode == NOERROR && ancount > 0) {
- arcount = ancount;
- ancount = nscount = 0;
- /* fallthrough to process A records */
- } else {
- fprintf(stderr, "cannot determine address for %s:\
-ans=%d, auth=%d, add=%d, rcode=%d\n",
- dname, ancount, nscount, arcount, hp->rcode);
- return (-1);
- }
- }
- /* process NS records for the zone */
- j = 0;
- for (i = 0; i < nscount; i++) {
- if ((n = dn_expand(answer, eom, cp, name,
- sizeof name)) < 0)
- return (n);
- cp += n;
- if (cp + 3 * INT16SZ + INT32SZ > eom)
- return (-1);
- GETSHORT(type, cp);
- GETSHORT(class, cp);
- GETLONG(ttl, cp);
- GETSHORT(dlen, cp);
- if (cp + dlen > eom)
- return (-1);
- if (strcasecmp(name, zname) == 0 &&
- type == T_NS && class == qclass) {
- if ((n = dn_expand(answer, eom, cp,
- name, sizeof name)) < 0)
- return (n);
- target = zptr->z_ns[j++].nsname;
- strcpy(target, name);
- }
- cp += dlen;
- }
- if (zptr->z_nscount == 0)
- zptr->z_nscount = j;
- /* get addresses for the nameservers */
- for (i = 0; i < arcount; i++) {
- if ((n = dn_expand(answer, eom, cp, name,
- sizeof name)) < 0)
- return (n);
- cp += n;
- if (cp + 3 * INT16SZ + INT32SZ > eom)
- return (-1);
- GETSHORT(type, cp);
- GETSHORT(class, cp);
- GETLONG(ttl, cp);
- GETSHORT(dlen, cp);
- if (cp + dlen > eom)
- return (-1);
- if (type == T_A && dlen == INT32SZ && class == qclass) {
- for (j = 0; j < zptr->z_nscount; j++)
- if (strcasecmp(name, zptr->z_ns[j].nsname) == 0) {
- memcpy(&zptr->z_ns[j].nsaddr1.s_addr, cp,
- INT32SZ);
- break;
- }
- }
- cp += dlen;
- }
- if (zptr->z_nscount == 0) {
- dname = zname;
- qtype = T_NS;
- continue;
- }
- done = 1;
- for (k = 0; k < zptr->z_nscount; k++)
- if (zptr->z_ns[k].nsaddr1.s_addr == 0) {
- done = 0;
- dname = zptr->z_ns[k].nsname;
- qtype = T_A;
- }
-
- } /* while */
- }
-
- statp->options |= RES_DEBUG;
- for (zptr = zgrp_start; zptr; zptr = zptr->z_next) {
-
- /* append zone section */
- rrecp = res_mkupdrec(ns_s_zn, zptr->z_origin,
- zptr->z_class, ns_t_soa, 0);
- if (rrecp == NULL) {
- fprintf(stderr, "saverrec error\n");
- fflush(stderr);
- return (-1);
- }
- rrecp->r_grpnext = zptr->z_rr;
- zptr->z_rr = rrecp;
-
- n = res_nmkupdate(statp, zptr->z_rr, packet, sizeof packet);
- if (n < 0) {
- fprintf(stderr, "res_nmkupdate error\n");
- fflush(stderr);
- return (-1);
- } else
- fprintf(stdout, "res_nmkupdate: packet size = %d\n", n);
-
- /*
- * Override the list of NS records from res_ninit() with
- * the authoritative nameservers for the zone being updated.
- * Sort primary to be the first in the list of nameservers.
- */
- for (i = 0; i < zptr->z_nscount; i++) {
- if (strcasecmp(zptr->z_ns[i].nsname,
- zptr->z_soardata) == 0) {
- struct in_addr tmpaddr;
-
- if (i != 0) {
- strcpy(zptr->z_ns[i].nsname,
- zptr->z_ns[0].nsname);
- strcpy(zptr->z_ns[0].nsname,
- zptr->z_soardata);
- tmpaddr = zptr->z_ns[i].nsaddr1;
- zptr->z_ns[i].nsaddr1 =
- zptr->z_ns[0].nsaddr1;
- zptr->z_ns[0].nsaddr1 = tmpaddr;
- }
- break;
- }
- }
- for (i = 0; i < MAXNS; i++) {
- statp->nsaddr_list[i].sin_addr = zptr->z_ns[i].nsaddr1;
- statp->nsaddr_list[i].sin_family = AF_INET;
- statp->nsaddr_list[i].sin_port = htons(NAMESERVER_PORT);
- }
- statp->nscount = (zptr->z_nscount < MAXNS) ?
- zptr->z_nscount : MAXNS;
- n = res_nsend(statp, packet, n, answer, sizeof(answer));
- if (n < 0) {
- fprintf(stderr, "res_nsend: send error, n=%d\n", n);
- break;
- } else if (n > sizeof(answer)) {
- fprintf(stderr, "res_nsend: buffer too small\n");
- break;
- }
- numzones++;
- }
-
- /* free malloc'ed memory */
- while(zgrp_start) {
- zptr = zgrp_start;
- zgrp_start = zgrp_start->z_next;
- res_freeupdrec(zptr->z_rr); /* Zone section we allocated. */
- free((char *)zptr);
- }
-
- return (numzones);
-}
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