adding zephyr-im master branch
This commit is contained in:
57
clients/zshutdown_notify/Makefile.in
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57
clients/zshutdown_notify/Makefile.in
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SHELL=@SHELL@
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prefix=@prefix@
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exec_prefix=@exec_prefix@
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datadir=@datadir@
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sysconfdir=@sysconfdir@
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sbindir=@sbindir@
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lsbindir=@lsbindir@
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datarootdir=@datarootdir@
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includedir=@includedir@
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mandir=@mandir@
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libdir=@libdir@
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bindir=@bindir@
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top_builddir=../..
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srcdir=@srcdir@
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top_srcdir=@top_srcdir@
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BUILDTOP=../..
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VPATH=@srcdir@
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LIBTOOL=@LIBTOOL@
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CC=@CC@
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INSTALL=@INSTALL@
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LIBZEPHYR=${BUILDTOP}/lib/libzephyr.la
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CPPFLAGS=@CPPFLAGS@
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CFLAGS=@CFLAGS@
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ALL_CFLAGS=${CFLAGS} -I${top_srcdir}/h -I${BUILDTOP}/h ${CPPFLAGS}
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LDFLAGS=@LDFLAGS@
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LIBS=${LIBZEPHYR} @LIBS@ -lcom_err
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OBJS= zshutdown_notify.o
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all: zshutdown_notify
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zshutdown_notify: ${OBJS} ${LIBZEPHYR}
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${LIBTOOL} --mode=link ${CC} ${LDFLAGS} -o $@ ${OBJS} ${LIBS}
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.c.o:
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${CC} -c ${ALL_CFLAGS} $<
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check:
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install: zshutdown_notify
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${LIBTOOL} --mode=install ${INSTALL} -m 755 zshutdown_notify \
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${DESTDIR}${lsbindir}
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${INSTALL} -m 644 ${srcdir}/zshutdown_notify.8 ${DESTDIR}${mandir}/man8
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clean:
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${LIBTOOL} --mode=clean rm -f zshutdown_notify
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rm -f ${OBJS}
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${OBJS}: ${top_srcdir}/h/sysdep.h ${BUILDTOP}/h/config.h
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${OBJS}: ${BUILDTOP}/h/zephyr/zephyr.h ${BUILDTOP}/h/zephyr/zephyr_err.h
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.PHONY: all check install clean
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43
clients/zshutdown_notify/zshutdown_notify.8
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43
clients/zshutdown_notify/zshutdown_notify.8
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.\" $Id$
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.\"
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.\" Copyright 1988 by the Massachusetts Institute of Technology
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.\" All rights reserved. The file /usr/include/zephyr/mit-copyright.h
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.\" specifies the terms and conditions for redistribution.
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.\"
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.TH ZSHUTDOWN_NOTIFY 8 "July 8, 1988" "MIT Project Athena"
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.ds ]W MIT Project Athena
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.SH NAME
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zshutdown_notify \- notify users of impending shutdown via Zephyr
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.SH SYNOPSIS
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.B zshutdown_notify
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.SH DESCRIPTION
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.I zshutdown_notify
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reads the standard input until EOF is reached, and then sends a Zephyr
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notice with the official hostname, the collected input, and a warning
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message as the message body of the notice.
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The notice is sent to class FILSRV, instance
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.I <hostname>,
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recipient "*", where <hostname> is the official hostname of the sending host.
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.PP
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Any users who are using resources on the sending host are expected to
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subscribe to these messages so they will be warned of any impending
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shutdowns.
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.PP
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.I zshutdown_notify
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is usually invoked from within
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.I /etc/shutdown.
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.SH SEE ALSO
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attach(1), zephyr(1), zwgc(1), shutdown(8), zhm(8), zephyrd(8)
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.br
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Project Athena Technical Plan Section E.4.1, `Zephyr Notification
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Service'
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.SH AUTHOR
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.PP
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C. Anthony Della Fera (Digital Equipment Corporation-Project Athena)
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.sp
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.SH RESTRICTIONS
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Copyright (c) 1987,1988 by the Massachusetts Institute of Technology.
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All Rights Reserved.
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.br
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.I zephyr(1)
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specifies the terms and conditions for redistribution.
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143
clients/zshutdown_notify/zshutdown_notify.c
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143
clients/zshutdown_notify/zshutdown_notify.c
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/* This file is part of the Project Athena Zephyr Notification System.
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* It contains code for "zshutdown_notify", a utility called by
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* shutdown(8) to do Zephyr notification on shutdown.
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*
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* Created by: C. Anthony Della Fera
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*
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* $Id$
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*
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* Copyright (c) 1987, 1993 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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#include <sysdep.h>
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#include <zephyr/mit-copyright.h>
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#include <zephyr/zephyr.h>
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#include <sys/socket.h>
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#include <netdb.h>
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#include <arpa/nameser.h>
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#ifndef lint
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static const char rcsid_zshutdown_notify_c[] =
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"$Id$";
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#endif
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#define N_KIND UNSAFE
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#define N_CLASS "FILSRV"
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#define N_OPCODE "SHUTDOWN"
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#define N_DEF_FORMAT "From $sender:\n@bold(Shutdown message from $1 at $time)\n@center(System going down, message is:)\n\n$2\n\n@center(@bold($3))"
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#define N_FIELD_CNT 3
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#ifdef HAVE_KRB4
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#define SVC_NAME "rcmd"
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#endif
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/*
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* Standard warning strings appended as extra fields to
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* the message body.
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*/
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static char warning[] = "Please detach any filesystems you may have\nattached from this host by typing detach -host %s";
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/*ARGSUSED*/
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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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ZNotice_t notice;
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struct hostent *hp;
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int retval;
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char hostname[NS_MAXDNAME];
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char msgbuff[BUFSIZ], message[Z_MAXPKTLEN], *ptr;
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char scratch[BUFSIZ];
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char *msg[N_FIELD_CNT];
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#ifdef HAVE_KRB4
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char tkt_filename[MAXPATHLEN];
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char rlm[REALM_SZ];
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char hn2[NS_MAXDNAME];
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char *cp;
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#endif
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if (gethostname(hostname, sizeof(hostname)) < 0) {
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com_err(argv[0], errno, "while finding hostname");
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exit(1);
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}
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if ((hp = gethostbyname(hostname)) != NULL)
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(void) strcpy(hostname, hp->h_name);
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msg[0] = hostname;
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msg[1] = message;
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sprintf(scratch, warning, hostname);
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msg[2] = scratch;
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#ifdef HAVE_KRB4
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(void) sprintf(tkt_filename, "/tmp/tkt_zshut_%d", getpid());
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krb_set_tkt_string(tkt_filename);
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cp = krb_get_phost(hostname);
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if (cp)
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(void) strcpy(hn2, cp);
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else {
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fprintf(stderr, "%s: can't figure out canonical hostname\n",argv[0]);
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exit(1);
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}
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retval = krb_get_lrealm(rlm, 1);
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if (retval) {
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fprintf(stderr, "%s: can't get local realm: %s\n",
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argv[0], krb_get_err_text(retval));
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exit(1);
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}
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retval = krb_get_svc_in_tkt(SVC_NAME, hn2, rlm,
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SERVER_SERVICE, SERVER_INSTANCE, 1,
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(char *)KEYFILE);
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if (retval) {
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fprintf(stderr, "%s: can't get tickets: %s\n",
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argv[0], krb_get_err_text(retval));
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exit(1);
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}
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#endif
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if ((retval = ZInitialize()) != ZERR_NONE) {
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com_err(argv[0], retval, "while initializing");
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exit(1);
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}
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ptr = message;
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for (;;) {
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if (!fgets(msgbuff, sizeof(msgbuff), stdin))
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break;
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if ((strlen(msgbuff) + (ptr - message)) > Z_MAXPKTLEN){
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break;
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}
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(void) strcpy(ptr, msgbuff);
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ptr += strlen(ptr);
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}
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(void) memset((char *)¬ice, 0, sizeof(notice));
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notice.z_kind = N_KIND;
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notice.z_port = 0;
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notice.z_charset = ZCHARSET_UNKNOWN;
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notice.z_class = N_CLASS;
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notice.z_class_inst = hostname;
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notice.z_opcode = N_OPCODE;
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notice.z_sender = 0;
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notice.z_message_len = 0;
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notice.z_recipient = "";
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notice.z_default_format = N_DEF_FORMAT;
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retval = ZSendList(¬ice, msg, N_FIELD_CNT, ZAUTH);
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#ifdef HAVE_KRB4
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(void) dest_tkt();
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#endif
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if (retval != ZERR_NONE) {
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com_err(argv[0], retval, "while sending notice");
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exit(1);
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}
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return 0;
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}
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