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/* This file is part of the Project Athena Zephyr Notification System.
* It contains source for the ZInitialize function.
*
* Created by: Robert French
*
* $Source$
* $Author$
*
* Copyright (c) 1987, 1991 by the Massachusetts Institute of Technology.
* For copying and distribution information, see the file
* "mit-copyright.h".
*/
/* $Header$ */
#ifndef lint
static char rcsid_ZInitialize_c[] =
"$Zephyr: /afs/athena.mit.edu/astaff/project/zephyr/src/lib/RCS/ZInitialize.c,v 1.17 89/05/30 18:11:25 jtkohl Exp $";
#endif
#include <internal.h>
#include <sys/socket.h>
#ifdef ZEPHYR_USES_KERBEROS
#include <krb_err.h>
#endif
Code_t ZInitialize()
{
struct servent *hmserv;
char addr[4];
#ifdef ZEPHYR_USES_KERBEROS
Code_t code;
ZNotice_t notice;
char *krealm;
int krbval;
char d1[ANAME_SZ], d2[INST_SZ];
initialize_krb_error_table();
#endif
initialize_zeph_error_table();
(void) memset((char *)&__HM_addr, 0, sizeof(__HM_addr));
__HM_addr.sin_family = AF_INET;
/* Set up local loopback address for HostManager */
addr[0] = 127;
addr[1] = 0;
addr[2] = 0;
addr[3] = 1;
hmserv = (struct servent *)getservbyname(HM_SVCNAME, "udp");
__HM_addr.sin_port = (hmserv) ? hmserv->s_port : HM_SVC_FALLBACK;
(void) memcpy((char *)&__HM_addr.sin_addr, addr, 4);
__HM_set = 0;
/* Initialize the input queue */
__Q_Tail = NULL;
__Q_Head = NULL;
#ifdef ZEPHYR_USES_KERBEROS
/* if the application is a server, there might not be a zhm. The
code will fall back to something which might not be "right",
but this is is ok, since none of the servers call krb_rd_req. */
if (! __Zephyr_server) {
if ((code = ZOpenPort(NULL)) != ZERR_NONE)
return(code);
if ((code = ZhmStat(NULL, ¬ice)) != ZERR_NONE)
return(code);
ZClosePort();
/* the first field, which is NUL-terminated, is the server name.
If this code ever support a multiplexing zhm, this will have to
be made smarter, and probably per-message */
krealm = krb_realmofhost(notice.z_message);
ZFreeNotice(¬ice);
} else {
krealm = NULL;
}
if (krealm) {
strcpy(__Zephyr_realm, krealm);
} else if ((krb_get_tf_fullname(TKT_FILE, d1, d2, __Zephyr_realm)
!= KSUCCESS) &&
((krbval = krb_get_lrealm(__Zephyr_realm, 1)) != KSUCCESS)) {
return (krbval);
}
#endif
/* Get the sender so we can cache it */
(void) ZGetSender();
return (ZERR_NONE);
}
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