1926 libresolv evades compiler warnings

*** 1,6 ****
--- 1,7 ----
  /*
+  * Copyright 2015 Gary Mills
   * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  /*
*** 21,34 ****
--- 22,37 ----
  #include <netinet/in.h>
  #include <ctype.h>
  #include <netdb.h>
  #include <stdio.h>
  #include <errno.h>
+ #include <string.h>
  #include <arpa/inet.h>
  #include <arpa/nameser.h>
  #include <resolv.h>
  #include <syslog.h>
+ #include "crossl.h"
  
  /*
   * When the name service switch calls libresolv, it doesn't want fallback
   * to /etc/hosts, so we provide a method to turn it off.
   */
*** 101,112 ****
          bp = hostbuf;
          buflen = sizeof (hostbuf);
          cp = answer->buf + sizeof (HEADER);
          if (qdcount) {
                  if (iquery) {
!                         if ((n = dn_expand((char *)answer->buf, eom,
!                                                 cp, bp, buflen)) < 0) {
                                  h_errno = NO_RECOVERY;
                                  return ((struct hostent *) NULL);
                          }
                          cp += n + QFIXEDSZ;
                          host.h_name = bp;
--- 104,115 ----
          bp = hostbuf;
          buflen = sizeof (hostbuf);
          cp = answer->buf + sizeof (HEADER);
          if (qdcount) {
                  if (iquery) {
!                         if ((n = dn_expand(answer->buf, eom,
!                             cp, (u_char *)bp, buflen)) < 0) {
                                  h_errno = NO_RECOVERY;
                                  return ((struct hostent *) NULL);
                          }
                          cp += n + QFIXEDSZ;
                          host.h_name = bp;
*** 130,141 ****
  #if BSD >= 43 || defined(h_addr)        /* new-style hostent structure */
          host.h_addr_list = h_addr_ptrs;
  #endif
          haveanswer = 0;
          while (--ancount >= 0 && cp < eom && haveanswer < MAXADDRS) {
!                 if ((n = dn_expand((char *)answer->buf, eom,
!                                                 cp, bp, buflen)) < 0)
                          break;
                  cp += n;
                  type = _getshort(cp);
                  cp += sizeof (u_short);
                  class = _getshort(cp);
--- 133,144 ----
  #if BSD >= 43 || defined(h_addr)        /* new-style hostent structure */
          host.h_addr_list = h_addr_ptrs;
  #endif
          haveanswer = 0;
          while (--ancount >= 0 && cp < eom && haveanswer < MAXADDRS) {
!                 if ((n = dn_expand(answer->buf, eom,
!                     cp, (u_char *)bp, buflen)) < 0)
                          break;
                  cp += n;
                  type = _getshort(cp);
                  cp += sizeof (u_short);
                  class = _getshort(cp);
*** 151,162 ****
                          bp += n;
                          buflen -= n;
                          continue;
                  }
                  if (iquery && type == T_PTR) {
!                         if ((n = dn_expand((char *)answer->buf, eom,
!                                         cp, bp, buflen)) < 0) {
                                  cp += n;
                                  continue;
                          }
                          cp += n;
                          host.h_name = bp;
--- 154,165 ----
                          bp += n;
                          buflen -= n;
                          continue;
                  }
                  if (iquery && type == T_PTR) {
!                         if ((n = dn_expand(answer->buf, eom,
!                             cp, (u_char *)bp, buflen)) < 0) {
                                  cp += n;
                                  continue;
                          }
                          cp += n;
                          host.h_name = bp;
*** 229,239 ****
          char *name;
  {
          querybuf buf;
          register char *cp;
          int n;
-         struct hostent *hp, *gethostdomain();
  
          /*
           * disallow names consisting only of digits/dots, unless
           * they end in a dot.
           */
--- 232,241 ----
*** 279,289 ****
          (void) sprintf(qbuf, "%d.%d.%d.%d.in-addr.arpa",
                  ((unsigned)addr[3] & 0xff),
                  ((unsigned)addr[2] & 0xff),
                  ((unsigned)addr[1] & 0xff),
                  ((unsigned)addr[0] & 0xff));
!         n = res_query(qbuf, C_IN, T_PTR, (char *)&buf, sizeof (buf));
          if (n < 0) {
  #ifdef DEBUG
                  if (_res.options & RES_DEBUG)
                          printf("res_query failed\n");
  #endif
--- 281,291 ----
          (void) sprintf(qbuf, "%d.%d.%d.%d.in-addr.arpa",
                  ((unsigned)addr[3] & 0xff),
                  ((unsigned)addr[2] & 0xff),
                  ((unsigned)addr[1] & 0xff),
                  ((unsigned)addr[0] & 0xff));
!         n = res_query(qbuf, C_IN, T_PTR, (u_char *)&buf, sizeof (buf));
          if (n < 0) {
  #ifdef DEBUG
                  if (_res.options & RES_DEBUG)
                          printf("res_query failed\n");
  #endif