HGKeeper

/* This file is part of the Project Athena Zephyr Notification System.

* It contains the ZhmStat() function.

* Created by: Marc Horowitz

* For copying and distribution information, see the file

* "mit-copyright.h".

#include "internal.h"

#ifdef WIN32

#include <winsock2.h>

#else

#include <sys/socket.h>

#endif

#ifndef INADDR_LOOPBACK

#define INADDR_LOOPBACK 0x7f000001

#endif

Code_t

ZhmStat(struct in_addr *hostaddr, ZNotice_t *notice)

{

struct servent *sp;

struct sockaddr_in sin;

ZNotice_t req;

Code_t code;

struct timeval tv;

fd_set readers;

(void) memset((char *)&sin, 0, sizeof(struct sockaddr_in));

sp = getservbyname(HM_SVCNAME, "udp");

sin.sin_port = (sp) ? sp->s_port : HM_SVC_FALLBACK;

sin.sin_family = AF_INET;

if (hostaddr)

sin.sin_addr = *hostaddr;

else

sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);

(void) memset((char *)&req, 0, sizeof(req));

req.z_kind = STAT;

req.z_port = 0;

req.z_class = HM_STAT_CLASS;

req.z_class_inst = HM_STAT_CLIENT;

req.z_opcode = HM_GIMMESTATS;

req.z_sender = "";

req.z_recipient = "";

req.z_default_format = "";

req.z_message_len = 0;

if ((code = ZSetDestAddr(&sin)) != ZERR_NONE)

return(code);

if ((code = ZSendNotice(&req, ZNOAUTH)) != ZERR_NONE)

return(code);

/* Wait up to ten seconds for a response. */

FD_ZERO(&readers);

FD_SET(ZGetFD(), &readers);

tv.tv_sec = 10;

tv.tv_usec = 0;

code = select(ZGetFD() + 1, &readers, NULL, NULL, &tv);

if (code < 0 && errno != EINTR)

return(errno);

if (code == 0 || (code < 0 && errno == EINTR) || ZPending() == 0)

return(ZERR_HMDEAD);

return(ZReceiveNotice(notice, (struct sockaddr_in *) 0));

}

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