adding zephyr-im master branch
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312
clients/zstat/zstat.c
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312
clients/zstat/zstat.c
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/* This file is part of the Project Athena Zephyr Notification System.
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* It contains the zstat program.
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*
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* Created by: David C. Jedlinsky
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*
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* $Id$
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*
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* Copyright (c) 1987,1988 by the Massachusetts Institute of Technology.
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* For copying and distribution information, see the file
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* "mit-copyright.h".
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*/
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/* There should be library interfaces for the operations in zstat; for now,
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* however, zstat is more or less internal to the Zephyr system. */
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#include <internal.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <arpa/nameser.h>
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#include "zserver.h"
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#if !defined(lint) && !defined(SABER)
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static const char rcsid_zstat_c[] = "$Id$";
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#endif
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const char *hm_head[] = {
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"Current server =",
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"Items in queue:",
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"Client packets received:",
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"Server packets received:",
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"Server changes:",
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"Version:",
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"Looking for a new server:",
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"Time running:",
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"Size:",
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"Machine type:"
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};
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#define HM_SIZE (sizeof(hm_head) / sizeof (char *))
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const char *srv_head[] = {
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"Current server version =",
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"Packets handled:",
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"Uptime:",
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"Server states:",
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};
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#define SRV_SIZE (sizeof(srv_head) / sizeof (char *))
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int outoftime = 0;
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int serveronly = 0,hmonly = 0;
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u_short srv_port;
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void usage(char *);
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void do_stat(char *);
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int srv_stat(char *);
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int hm_stat(char *, char *);
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static RETSIGTYPE
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timeout(int ignored)
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{
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outoftime = 1;
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}
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int
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main(int argc,
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char *argv[])
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{
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Code_t ret;
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char hostname[NS_MAXDNAME];
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int optchar;
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struct servent *sp;
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if ((ret = ZInitialize()) != ZERR_NONE) {
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com_err("zstat", ret, "initializing");
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exit(-1);
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}
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if ((ret = ZOpenPort((u_short *)0)) != ZERR_NONE) {
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com_err("zstat", ret, "opening port");
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exit(-1);
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}
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while ((optchar = getopt(argc, argv, "sh")) != EOF) {
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switch(optchar) {
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case 's':
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serveronly++;
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break;
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case 'h':
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hmonly++;
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break;
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case '?':
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default:
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usage(argv[0]);
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exit(1);
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}
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}
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if (serveronly && hmonly) {
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fprintf(stderr,"Only one of -s and -h may be specified\n");
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exit(1);
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}
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sp = getservbyname(SERVER_SVCNAME,"udp");
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srv_port = (sp) ? sp->s_port : SERVER_SVC_FALLBACK;
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if (optind == argc) {
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do_stat("127.0.0.1");
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exit(0);
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}
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for (;optind<argc;optind++)
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do_stat(argv[optind]);
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exit(0);
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}
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void
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do_stat(char *host)
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{
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char srv_host[NS_MAXDNAME];
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if (serveronly) {
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(void) srv_stat(host);
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return;
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}
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if (hm_stat(host,srv_host))
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return;
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if (!hmonly)
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(void) srv_stat(srv_host);
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}
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int
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hm_stat(char *host,
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char *server)
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{
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struct in_addr inaddr;
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Code_t code;
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char *line[20],*mp;
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unsigned int i,nf;
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struct hostent *hp;
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time_t runtime;
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struct tm *tim;
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ZNotice_t notice;
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if ((inaddr.s_addr = inet_addr(host)) == (unsigned)(-1)) {
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if ((hp = gethostbyname(host)) == NULL) {
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fprintf(stderr,"Unknown host: %s\n",host);
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exit(-1);
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}
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(void) memcpy((char *) &inaddr, hp->h_addr, hp->h_length);
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printf("Hostmanager stats: %s\n", hp->h_name);
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} else {
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printf("Hostmanager stats: %s\n", host);
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}
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if ((code = ZhmStat(&inaddr, ¬ice)) != ZERR_NONE) {
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com_err("zstat", code, "getting hostmanager status");
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exit(-1);
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}
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mp = notice.z_message;
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for (nf=0;mp<notice.z_message+notice.z_message_len;nf++) {
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line[nf] = mp;
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mp += strlen(mp)+1;
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}
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(void) strcpy(server,line[0]);
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printf("HostManager protocol version = %s\n",notice.z_version);
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for (i=0; (i < nf) && (i < HM_SIZE); i++) {
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if (!strncmp("Time",hm_head[i],4)) {
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runtime = atol(line[i]);
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tim = gmtime(&runtime);
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printf("%s %d days, %02d:%02d:%02d\n", hm_head[i],
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tim->tm_yday,
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tim->tm_hour,
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tim->tm_min,
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tim->tm_sec);
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}
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else
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printf("%s %s\n",hm_head[i],line[i]);
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}
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printf("\n");
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ZFreeNotice(¬ice);
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return(0);
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}
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int
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srv_stat(char *host)
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{
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char *line[20],*mp;
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int sock,i,nf,ret;
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struct hostent *hp;
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struct sockaddr_in sin;
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ZNotice_t notice;
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time_t runtime;
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struct tm *tim;
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#ifdef _POSIX_VERSION
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struct sigaction sa;
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#endif
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(void) memset((char *) &sin, 0, sizeof(struct sockaddr_in));
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sin.sin_port = srv_port;
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if ((sock = socket(PF_INET, SOCK_DGRAM, 0)) < 0) {
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perror("socket:");
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exit(-1);
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}
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sin.sin_family = AF_INET;
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if ((sin.sin_addr.s_addr = inet_addr(host)) == (unsigned)(-1)) {
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if ((hp = gethostbyname(host)) == NULL) {
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fprintf(stderr,"Unknown host: %s\n",host);
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exit(-1);
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}
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(void) memcpy((char *) &sin.sin_addr, hp->h_addr, hp->h_length);
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printf("Server stats: %s\n", hp->h_name);
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} else {
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printf("Server stats: %s\n", host);
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}
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(void) memset((char *)¬ice, 0, sizeof(notice));
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notice.z_kind = UNSAFE;
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notice.z_port = 0;
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notice.z_charset = ZCHARSET_UNKNOWN;
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notice.z_class = ZEPHYR_ADMIN_CLASS;
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notice.z_class_inst = "";
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notice.z_opcode = ADMIN_STATUS;
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notice.z_sender = "";
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notice.z_recipient = "";
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notice.z_default_format = "";
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notice.z_message_len = 0;
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if ((ret = ZSetDestAddr(&sin)) != ZERR_NONE) {
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com_err("zstat", ret, "setting destination");
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exit(-1);
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}
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if ((ret = ZSendNotice(¬ice, ZNOAUTH)) != ZERR_NONE) {
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com_err("zstat", ret, "sending notice");
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exit(-1);
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}
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#ifdef _POSIX_VERSION
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sigemptyset(&sa.sa_mask);
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sa.sa_flags = 0;
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sa.sa_handler = timeout;
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(void) sigaction(SIGALRM, &sa, (struct sigaction *)0);
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#else
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(void) signal(SIGALRM,timeout);
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#endif
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outoftime = 0;
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(void) alarm(10);
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if (((ret = ZReceiveNotice(¬ice, (struct sockaddr_in *) 0))
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!= ZERR_NONE) &&
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ret != EINTR) {
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com_err("zstat", ret, "receiving notice");
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return (1);
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}
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(void) alarm(0);
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if (outoftime) {
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fprintf(stderr,"No response after 10 seconds.\n");
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return (1);
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}
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mp = notice.z_message;
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for (nf=0;mp<notice.z_message+notice.z_message_len;nf++) {
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line[nf] = mp;
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mp += strlen(mp)+1;
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}
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printf("Server protocol version = %s\n",notice.z_version);
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for (i=0; i < nf; i++) {
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if (i < 2)
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printf("%s %s\n",srv_head[i],line[i]);
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else if (i == 2) { /* uptime field */
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runtime = atol(line[i]);
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tim = gmtime(&runtime);
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printf("%s %d days, %02d:%02d:%02d\n",
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srv_head[i],
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tim->tm_yday,
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tim->tm_hour,
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tim->tm_min,
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tim->tm_sec);
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} else if (i == 3) {
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printf("%s\n",srv_head[i]);
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printf("%s\n",line[i]);
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} else printf("%s\n",line[i]);
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}
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printf("\n");
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(void) close(sock);
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ZFreeNotice(¬ice);
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return(0);
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}
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void
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usage(char *s)
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{
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fprintf(stderr,"usage: %s [-s] [-h] [host ...]\n",s);
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exit(1);
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}
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