[justin@brian src]$ grep -A 1 -R get_remote_host *
ApacheCore.def: ap_get_remote_host   @98
ApacheCore.def- ap_get_remote_logname   @99
--
ApacheCoreOS2.def:      ap_get_remote_host   @98
ApacheCoreOS2.def-      ap_get_remote_logname   @99
--
include/httpd.h:                                 * get_remote_host() */
include/httpd.h-    char *remote_logname;       /* Only ever set if doing rfc1413 lookups.
--
include/ap_compat.h:#define get_remote_host                ap_get_remote_host
include/ap_compat.h-#define get_remote_logname             ap_get_remote_logname
--
include/http_core.h:/* options for get_remote_host() */
include/http_core.h-/* REMOTE_HOST returns the hostname, or NULL if the hostname
--
include/http_core.h:API_EXPORT(const char *) ap_get_remote_host(conn_rec *conn, void *dir_config, int type);
include/http_core.h-API_EXPORT(const char *) ap_get_remote_logname(request_rec *r);
--
main/http_core.c: *       depending on the flags given to ap_get_remote_host().
main/http_core.c- */
--
main/http_core.c:API_EXPORT(const char *) ap_get_remote_host(conn_rec *conn, void *dir_config,
main/http_core.c-                                           int type)
--
main/util_script.c:    host = ap_get_remote_host(c, r->per_dir_config, REMOTE_HOST);
main/util_script.c-    if (host) {
--
main/http_main.c:#include "http_core.h"         /* for get_remote_host */
main/http_main.c-#include "http_vhost.h"
--
main/http_main.c:           ap_cpystrn(ss->client, ap_get_remote_host(c, r->per_dir_config,
main/http_main.c-                                 REMOTE_NOLOOKUP), sizeof(ss->client));
--
main/http_log.c:                ap_get_remote_host(r->connection, r->per_dir_config, REMOTE_NAME),
main/http_log.c-                reason);
--
modules/standard/mod_setenvif.c:                val =  ap_get_remote_host(r->connection, r->per_dir_config,
modules/standard/mod_setenvif.c-                                          REMOTE_NAME);
--
modules/standard/mod_access.c:          remotehost = ap_get_remote_host(r->connection, r->per_dir_config,
modules/standard/mod_access.c-                                      REMOTE_DOUBLE_REV);
--
modules/standard/mod_rewrite.c:    rhost = ap_get_remote_host(conn, r->server->module_config,
modules/standard/mod_rewrite.c-                               REMOTE_NOLOOKUP);
--
modules/standard/mod_rewrite.c:        result = (char *)ap_get_remote_host(r->connection,
modules/standard/mod_rewrite.c-                                         r->per_dir_config, REMOTE_NAME);
--
modules/standard/mod_log_config.c:    return ap_escape_logitem(r->pool, ap_get_remote_host(r->connection, r->per_dir_config,
modules/standard/mod_log_config.c-                                    REMOTE_NAME));
--
modules/standard/mod_usertrack.c:    const char *rname = ap_get_remote_host(r->connection, r->per_dir_config,
modules/standard/mod_usertrack.c-                                          REMOTE_NAME);
--
os/netware/ApacheCore.imp: ap_get_remote_host,
os/netware/ApacheCore.imp- ap_get_remote_logname,
--
os/netware/mod_log_nw.c:    return ap_get_remote_host(r->connection, r->per_dir_config,
os/netware/mod_log_nw.c-                                    REMOTE_NAME);
--
support/httpd.exp:ap_get_remote_host
support/httpd.exp-ap_get_remote_logname