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Diffstat (limited to 'contrib/bind/tools/nslookup/getinfo.c')
-rw-r--r-- | contrib/bind/tools/nslookup/getinfo.c | 843 |
1 files changed, 843 insertions, 0 deletions
diff --git a/contrib/bind/tools/nslookup/getinfo.c b/contrib/bind/tools/nslookup/getinfo.c new file mode 100644 index 0000000..4587fb6 --- /dev/null +++ b/contrib/bind/tools/nslookup/getinfo.c @@ -0,0 +1,843 @@ +/* + * ++Copyright++ 1985, 1989 + * - + * Copyright (c) 1985, 1989 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * - + * Portions Copyright (c) 1993 by Digital Equipment Corporation. + * + * 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, and that + * the name of Digital Equipment Corporation not be used in advertising or + * publicity pertaining to distribution of the document or software without + * specific, written prior permission. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL + * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT + * CORPORATION 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. + * - + * --Copyright-- + */ + +#ifndef lint +static char sccsid[] = "@(#)getinfo.c 5.26 (Berkeley) 3/21/91"; +static char rcsid[] = "$Id: getinfo.c,v 8.3 1995/12/29 07:16:27 vixie Exp $"; +#endif /* not lint */ + +/* + ****************************************************************************** + * + * getinfo.c -- + * + * Routines to create requests to name servers + * and interpret the answers. + * + * Adapted from 4.3BSD BIND gethostnamadr.c + * + ****************************************************************************** + */ + +#include <sys/param.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/nameser.h> +#include <arpa/inet.h> +#include <resolv.h> +#include <stdio.h> +#include <ctype.h> +#include "res.h" +#include "../../conf/portability.h" + +extern char *_res_resultcodes[]; +extern char *res_skip(); + +#define MAXALIASES 35 +#define MAXADDRS 35 +#define MAXDOMAINS 35 +#define MAXSERVERS 10 + +static char *addr_list[MAXADDRS + 1]; + +static char *host_aliases[MAXALIASES]; +static int host_aliases_len[MAXALIASES]; +static u_char hostbuf[BUFSIZ+1]; + +typedef struct { + char *name; + char *domain[MAXDOMAINS]; + int numDomains; + char *address[MAXADDRS]; + int numAddresses; +} ServerTable; + +ServerTable server[MAXSERVERS]; + +typedef union { + HEADER qb1; + u_char qb2[PACKETSZ*2]; +} querybuf; + +typedef union { + int32_t al; + char ac; +} align; + +#define GetShort(cp) _getshort(cp); cp += INT16SZ; + + +/* + ****************************************************************************** + * + * GetAnswer -- + * + * Interprets an answer packet and retrieves the following + * information: + * + * Results: + * SUCCESS the info was retrieved. + * NO_INFO the packet did not contain an answer. + * NONAUTH non-authoritative information was found. + * ERROR the answer was malformed. + * Other errors returned in the packet header. + * + ****************************************************************************** + */ + +static int +GetAnswer(nsAddrPtr, queryType, msg, msglen, iquery, hostPtr, isServer) + struct in_addr *nsAddrPtr; + char *msg; + int queryType; + int msglen; + Boolean iquery; + register HostInfo *hostPtr; + Boolean isServer; +{ + register HEADER *headerPtr; + register u_char *cp; + querybuf answer; + char **aliasPtr; + u_char *eom, *bp; + char **addrPtr; + char *namePtr; + char *dnamePtr; + int type, class; + int qdcount, ancount, arcount, nscount, buflen; + int origClass; + int numAliases = 0; + int numAddresses = 0; + int n, i, j; + int len; + int dlen; + int status; + int numServers; + Boolean haveAnswer; + Boolean printedAnswers = FALSE; + + + /* + * If the hostPtr was used before, free up the calloc'd areas. + */ + FreeHostInfoPtr(hostPtr); + + status = SendRequest(nsAddrPtr, msg, msglen, (char *) &answer, + sizeof(answer), &n); + + if (status != SUCCESS) { + if (_res.options & RES_DEBUG2) + printf("SendRequest failed\n"); + return (status); + } + eom = (u_char *) &answer + n; + + headerPtr = (HEADER *) &answer; + + if (headerPtr->rcode != NOERROR) { + return (headerPtr->rcode); + } + + qdcount = ntohs(headerPtr->qdcount); + ancount = ntohs(headerPtr->ancount); + arcount = ntohs(headerPtr->arcount); + nscount = ntohs(headerPtr->nscount); + + /* + * If there are no answer, n.s. or additional records + * then return with an error. + */ + if (ancount == 0 && nscount == 0 && arcount == 0) { + return (NO_INFO); + } + + + bp = hostbuf; + buflen = sizeof(hostbuf); + cp = (u_char *) &answer + HFIXEDSZ; + + /* Skip over question section. */ + while (qdcount-- > 0) { + cp += dn_skipname(cp, eom) + QFIXEDSZ; + } + + aliasPtr = host_aliases; + addrPtr = addr_list; + haveAnswer = FALSE; + + /* + * Scan through the answer resource records. + * Answers for address query types are saved. + * Other query type answers are just printed. + */ + if (ancount != 0) { + if (!isServer && !headerPtr->aa) { + printf("Non-authoritative answer:\n"); + } + + if (queryType != T_A && !(iquery && queryType == T_PTR)) { + while (--ancount >= 0 && cp < eom) { + if ((cp = (u_char *)Print_rr(cp, + (char *)&answer, eom, stdout)) == NULL) { + return(ERROR); + } + } + printedAnswers = TRUE; + } else { + while (--ancount >= 0 && cp < eom) { + n = dn_expand(answer.qb2, eom, cp, (char *)bp, buflen); + if (n < 0) { + return(ERROR); + } + cp += n; + type = GetShort(cp); + class = GetShort(cp); + cp += INT32SZ; /* skip TTL */ + dlen = GetShort(cp); + if (type == T_CNAME) { + /* + * Found an alias. + */ + cp += dlen; + if (aliasPtr >= &host_aliases[MAXALIASES-1]) { + continue; + } + *aliasPtr++ = (char *)bp; + n = strlen((char *)bp) + 1; + host_aliases_len[numAliases] = n; + numAliases++; + bp += n; + buflen -= n; + continue; + } else if (type == T_PTR) { + /* + * Found a "pointer" to the real name. + */ + n = dn_expand(answer.qb2, eom, cp, (char *)bp, buflen); + if (n < 0) { + cp += n; + continue; + } + cp += n; + len = strlen((char *)bp) + 1; + hostPtr->name = Calloc(1, len); + bcopy(bp, hostPtr->name, len); + haveAnswer = TRUE; + break; + } else if (type != T_A) { + cp += dlen; + continue; + } + if (haveAnswer) { + /* + * If we've already got 1 address, we aren't interested + * in addresses with a different length or class. + */ + if (dlen != hostPtr->addrLen) { + cp += dlen; + continue; + } + if (class != origClass) { + cp += dlen; + continue; + } + } else { + /* + * First address: record its length and class so we + * only save additonal ones with the same attributes. + */ + hostPtr->addrLen = dlen; + origClass = class; + hostPtr->addrType = (class == C_IN) ? AF_INET : AF_UNSPEC; + len = strlen((char *)bp) + 1; + hostPtr->name = Calloc(1, len); + bcopy(bp, hostPtr->name, len); + } + bp += (((u_int32_t)bp) % sizeof(align)); + + if (bp + dlen >= &hostbuf[sizeof(hostbuf)]) { + if (_res.options & RES_DEBUG) { + printf("Size (%d) too big\n", dlen); + } + break; + } + bcopy(cp, *addrPtr++ = (char *)bp, dlen); + bp +=dlen; + cp += dlen; + numAddresses++; + haveAnswer = TRUE; + } + } + } + + if ((queryType == T_A || queryType == T_PTR) && haveAnswer) { + + /* + * Go through the alias and address lists and return them + * in the hostPtr variable. + */ + + if (numAliases > 0) { + hostPtr->aliases = + (char **) Calloc(1 + numAliases, sizeof(char *)); + for (i = 0; i < numAliases; i++) { + hostPtr->aliases[i] = Calloc(1, host_aliases_len[i]); + bcopy(host_aliases[i], + hostPtr->aliases[i], + host_aliases_len[i]); + } + hostPtr->aliases[i] = NULL; + } + if (numAddresses > 0) { + hostPtr->addrList = + (char **)Calloc(1+numAddresses, sizeof(char *)); + for (i = 0; i < numAddresses; i++) { + hostPtr->addrList[i] = Calloc(1, hostPtr->addrLen); + bcopy(addr_list[i], hostPtr->addrList[i], hostPtr->addrLen); + } + hostPtr->addrList[i] = NULL; + } +#ifdef verbose + if (headerPtr->aa || nscount == 0) { + hostPtr->servers = NULL; + return (SUCCESS); + } +#else + hostPtr->servers = NULL; + return (SUCCESS); +#endif + } + + /* + * At this point, for the T_A query type, only empty answers remain. + * For other query types, additional information might be found + * in the additional resource records part. + */ + + if (!headerPtr->aa && (queryType != T_A) && (nscount > 0 || arcount > 0)) { + if (printedAnswers) { + putchar('\n'); + } + printf("Authoritative answers can be found from:\n"); + } + + cp = (u_char *)res_skip((char *) &answer, 2, eom); + + numServers = 0; + if (queryType != T_A) { + /* + * If we don't need to save the record, just print it. + */ + while (--nscount >= 0 && cp < eom) { + if ((cp = (u_char *)Print_rr(cp, + (char *) &answer, eom, stdout)) == NULL) { + return(ERROR); + } + } + } else { + while (--nscount >= 0 && cp < eom) { + /* + * Go through the NS records and retrieve the names of hosts + * that serve the requested domain. + */ + + n = dn_expand(answer.qb2, eom, cp, (char *)bp, buflen); + if (n < 0) { + return(ERROR); + } + cp += n; + len = strlen((char *)bp) + 1; + dnamePtr = Calloc(1, len); /* domain name */ + bcopy(bp, dnamePtr, len); + + type = GetShort(cp); + class = GetShort(cp); + cp += INT32SZ; /* skip TTL */ + dlen = GetShort(cp); + + if (type != T_NS) { + cp += dlen; + } else { + Boolean found; + + n = dn_expand(answer.qb2, eom, cp, (char *)bp, buflen); + if (n < 0) { + return(ERROR); + } + cp += n; + len = strlen((char *)bp) + 1; + namePtr = Calloc(1, len); /* server host name */ + bcopy(bp, namePtr, len); + + /* + * Store the information keyed by the server host name. + */ + found = FALSE; + for (j = 0; j < numServers; j++) { + if (strcmp(namePtr, server[j].name) == 0) { + found = TRUE; + free(namePtr); + break; + } + } + if (found) { + server[j].numDomains++; + if (server[j].numDomains <= MAXDOMAINS) { + server[j].domain[server[j].numDomains-1] = dnamePtr; + } + } else { + if (numServers >= MAXSERVERS) { + break; + } + server[numServers].name = namePtr; + server[numServers].domain[0] = dnamePtr; + server[numServers].numDomains = 1; + server[numServers].numAddresses = 0; + numServers++; + } + } + } + } + + /* + * Additional resource records contain addresses of servers. + */ + cp = (u_char *)res_skip((char *) &answer, 3, eom); + + if (queryType != T_A) { + /* + * If we don't need to save the record, just print it. + */ + while (--arcount >= 0 && cp < eom) { + if ((cp = (u_char *)Print_rr(cp, + (char *) &answer, eom, stdout)) == NULL) { + return(ERROR); + } + } + } else { + while (--arcount >= 0 && cp < eom) { + n = dn_expand(answer.qb2, eom, cp, (char *)bp, buflen); + if (n < 0) { + break; + } + cp += n; + type = GetShort(cp); + class = GetShort(cp); + cp += INT32SZ; /* skip TTL */ + dlen = GetShort(cp); + + if (type != T_A) { + cp += dlen; + continue; + } else { + for (j = 0; j < numServers; j++) { + if (strcmp((char *)bp, server[j].name) == 0) { + server[j].numAddresses++; + if (server[j].numAddresses <= MAXADDRS) { + server[j].address[server[j].numAddresses-1] = + Calloc(1,dlen); + bcopy(cp, + server[j].address[server[j].numAddresses-1],dlen); + break; + } + } + } + cp += dlen; + } + } + } + + /* + * If we are returning name server info, transfer it to the hostPtr. + */ + if (numServers > 0) { + hostPtr->servers = (ServerInfo **) + Calloc(numServers+1, sizeof(ServerInfo *)); + + for (i = 0; i < numServers; i++) { + hostPtr->servers[i] = (ServerInfo *) Calloc(1, sizeof(ServerInfo)); + hostPtr->servers[i]->name = server[i].name; + + + hostPtr->servers[i]->domains = (char **) + Calloc(server[i].numDomains+1,sizeof(char *)); + for (j = 0; j < server[i].numDomains; j++) { + hostPtr->servers[i]->domains[j] = server[i].domain[j]; + } + hostPtr->servers[i]->domains[j] = NULL; + + + hostPtr->servers[i]->addrList = (char **) + Calloc(server[i].numAddresses+1,sizeof(char *)); + for (j = 0; j < server[i].numAddresses; j++) { + hostPtr->servers[i]->addrList[j] = server[i].address[j]; + } + hostPtr->servers[i]->addrList[j] = NULL; + + } + hostPtr->servers[i] = NULL; + } + + switch (queryType) { + case T_A: + return NONAUTH; + case T_PTR: + if (iquery) + return NO_INFO; + /* fall through */ + default: + return SUCCESS; + } +} + +/* +******************************************************************************* +* +* GetHostInfo -- +* +* Retrieves host name, address and alias information +* for a domain. +* +* Algorithm from res_search(). +* +* Results: +* ERROR - res_mkquery failed. +* + return values from GetAnswer() +* +******************************************************************************* +*/ + +int +GetHostInfoByName(nsAddrPtr, queryClass, queryType, name, hostPtr, isServer) + struct in_addr *nsAddrPtr; + int queryClass; + int queryType; + char *name; + HostInfo *hostPtr; + Boolean isServer; +{ + int n; + register int result; + register char *cp, **domain; + Boolean got_nodata = FALSE; + struct in_addr ina; + Boolean tried_as_is = FALSE; + + /* Catch explicit addresses */ + if ((queryType == T_A) && IsAddr(name, &ina)) { + hostPtr->name = Calloc(strlen(name)+3, 1); + (void)sprintf(hostPtr->name,"[%s]",name); + hostPtr->aliases = NULL; + hostPtr->servers = NULL; + hostPtr->addrType = AF_INET; + hostPtr->addrLen = INADDRSZ; + hostPtr->addrList = (char **)Calloc(2, sizeof(char *)); + hostPtr->addrList[0] = Calloc(INT32SZ, sizeof(char)); + bcopy((char *)&ina, hostPtr->addrList[0], INADDRSZ); + hostPtr->addrList[1] = NULL; + return(SUCCESS); + } + + result = NXDOMAIN; + for (cp = name, n = 0; *cp; cp++) + if (*cp == '.') + n++; + if (n == 0 && (cp = hostalias(name))) { + printf("Aliased to \"%s\"\n\n", cp); + return (GetHostDomain(nsAddrPtr, queryClass, queryType, + cp, (char *)NULL, hostPtr, isServer)); + } + + /* + * If there are dots in the name already, let's just give it a try + * 'as is'. The threshold can be set with the "ndots" option. + */ + if (n >= (int)_res.ndots) { + result = GetHostDomain(nsAddrPtr, queryClass, queryType, + name, (char *)NULL, hostPtr, isServer); + if (result == SUCCESS) + return (result); + if (result == NO_INFO) + got_nodata++; + tried_as_is++; + } + + /* + * We do at least one level of search if + * - there is no dot and RES_DEFNAME is set, or + * - there is at least one dot, there is no trailing dot, + * and RES_DNSRCH is set. + */ + if ((n == 0 && _res.options & RES_DEFNAMES) || + (n != 0 && *--cp != '.' && _res.options & RES_DNSRCH)) + for (domain = _res.dnsrch; *domain; domain++) { + result = GetHostDomain(nsAddrPtr, queryClass, queryType, + name, *domain, hostPtr, isServer); + /* + * If no server present, give up. + * If name isn't found in this domain, + * keep trying higher domains in the search list + * (if that's enabled). + * On a NO_INFO error, keep trying, otherwise + * a wildcard entry of another type could keep us + * from finding this entry higher in the domain. + * If we get some other error (negative answer or + * server failure), then stop searching up, + * but try the input name below in case it's fully-qualified. + */ + if (result == SUCCESS || result == NO_RESPONSE) + return result; + if (result == NO_INFO) + got_nodata++; + if ((result != NXDOMAIN && result != NO_INFO) || + (_res.options & RES_DNSRCH) == 0) + break; + } + /* if we have not already tried the name "as is", do that now. + * note that we do this regardless of how many dots were in the + * name or whether it ends with a dot. + */ + if (!tried_as_is && + (result = GetHostDomain(nsAddrPtr, queryClass, queryType, + name, (char *)NULL, hostPtr, isServer) + ) == SUCCESS) + return (result); + if (got_nodata) + result = NO_INFO; + return (result); +} + +/* + * Perform a query on the concatenation of name and domain, + * removing a trailing dot from name if domain is NULL. + */ +GetHostDomain(nsAddrPtr, queryClass, queryType, name, domain, hostPtr, isServer) + struct in_addr *nsAddrPtr; + int queryClass; + int queryType; + char *name, *domain; + HostInfo *hostPtr; + Boolean isServer; +{ + querybuf buf; + char nbuf[2*MAXDNAME+2]; + char *longname = nbuf; + int n; + + if (domain == NULL) { + /* + * Check for trailing '.'; + * copy without '.' if present. + */ + n = strlen(name) - 1; + if (name[n] == '.' && n < sizeof(nbuf) - 1) { + bcopy(name, nbuf, n); + nbuf[n] = '\0'; + } else + longname = name; + } else { + (void)sprintf(nbuf, "%.*s.%.*s", + MAXDNAME, name, MAXDNAME, domain); + longname = nbuf; + } + n = res_mkquery(QUERY, longname, queryClass, queryType, + NULL, 0, 0, buf.qb2, sizeof(buf)); + if (n < 0) { + if (_res.options & RES_DEBUG) { + printf("Res_mkquery failed\n"); + } + return (ERROR); + } + + n = GetAnswer(nsAddrPtr, queryType, (char *)&buf, n, 0, hostPtr, isServer); + + /* + * GetAnswer didn't find a name, so set it to the specified one. + */ + if (n == NONAUTH) { + if (hostPtr->name == NULL) { + int len = strlen(longname) + 1; + hostPtr->name = Calloc(len, sizeof(char)); + bcopy(longname, hostPtr->name, len); + } + } + return(n); +} + + +/* +******************************************************************************* +* +* GetHostInfoByAddr -- +* +* Performs a PTR lookup in in-addr.arpa to find the host name +* that corresponds to the given address. +* +* Results: +* ERROR - res_mkquery failed. +* + return values from GetAnswer() +* +******************************************************************************* +*/ + +int +GetHostInfoByAddr(nsAddrPtr, address, hostPtr) + struct in_addr *nsAddrPtr; + struct in_addr *address; + HostInfo *hostPtr; +{ + int n; + querybuf buf; + char qbuf[MAXDNAME]; + char *p = (char *) &address->s_addr; + + (void)sprintf(qbuf, "%u.%u.%u.%u.in-addr.arpa", + ((unsigned)p[3] & 0xff), + ((unsigned)p[2] & 0xff), + ((unsigned)p[1] & 0xff), + ((unsigned)p[0] & 0xff)); + n = res_mkquery(QUERY, qbuf, C_IN, T_PTR, NULL, 0, NULL, + buf.qb2, sizeof buf); + if (n < 0) { + if (_res.options & RES_DEBUG) { + printf("res_mkquery() failed\n"); + } + return (ERROR); + } + n = GetAnswer(nsAddrPtr, T_PTR, (char *) &buf, n, 1, hostPtr, 1); + if (n == SUCCESS) { + hostPtr->addrType = AF_INET; + hostPtr->addrLen = 4; + hostPtr->addrList = (char **)Calloc(2, sizeof(char *)); + hostPtr->addrList[0] = Calloc(INT32SZ, sizeof(char)); + bcopy((char *)p, hostPtr->addrList[0], INADDRSZ); + hostPtr->addrList[1] = NULL; + } + return n; +} + +/* +******************************************************************************* +* +* FreeHostInfoPtr -- +* +* Deallocates all the calloc'd areas for a HostInfo variable. +* +******************************************************************************* +*/ + +void +FreeHostInfoPtr(hostPtr) + register HostInfo *hostPtr; +{ + int i, j; + + if (hostPtr->name != NULL) { + free(hostPtr->name); + hostPtr->name = NULL; + } + + if (hostPtr->aliases != NULL) { + i = 0; + while (hostPtr->aliases[i] != NULL) { + free(hostPtr->aliases[i]); + i++; + } + free((char *)hostPtr->aliases); + hostPtr->aliases = NULL; + } + + if (hostPtr->addrList != NULL) { + i = 0; + while (hostPtr->addrList[i] != NULL) { + free(hostPtr->addrList[i]); + i++; + } + free((char *)hostPtr->addrList); + hostPtr->addrList = NULL; + } + + if (hostPtr->servers != NULL) { + i = 0; + while (hostPtr->servers[i] != NULL) { + + if (hostPtr->servers[i]->name != NULL) { + free(hostPtr->servers[i]->name); + } + + if (hostPtr->servers[i]->domains != NULL) { + j = 0; + while (hostPtr->servers[i]->domains[j] != NULL) { + free(hostPtr->servers[i]->domains[j]); + j++; + } + free((char *)hostPtr->servers[i]->domains); + } + + if (hostPtr->servers[i]->addrList != NULL) { + j = 0; + while (hostPtr->servers[i]->addrList[j] != NULL) { + free(hostPtr->servers[i]->addrList[j]); + j++; + } + free((char *)hostPtr->servers[i]->addrList); + } + free((char *)hostPtr->servers[i]); + i++; + } + free((char *)hostPtr->servers); + hostPtr->servers = NULL; + } +} |