df57947f08
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257 lines
6.4 KiB
C
257 lines
6.4 KiB
C
/*-
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* SPDX-License-Identifier: BSD-4-Clause
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*
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* Copyright (c) 1993, John Brezak
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <rpc/rpc.h>
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#include <rpc/pmap_clnt.h>
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#undef FSHIFT /* Use protocol's shift and scale values */
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#undef FSCALE
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#include <rpcsvc/rstat.h>
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#include <arpa/inet.h>
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#include <err.h>
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#include <netdb.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <time.h>
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#include <unistd.h>
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#define HOST_WIDTH 15
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struct host_list {
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struct host_list *next;
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struct in_addr addr;
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} *hosts;
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static int
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search_host(struct in_addr addr)
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{
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struct host_list *hp;
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if (!hosts)
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return(0);
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for (hp = hosts; hp != NULL; hp = hp->next) {
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if (hp->addr.s_addr == addr.s_addr)
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return(1);
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}
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return(0);
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}
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static void
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remember_host(struct in_addr addr)
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{
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struct host_list *hp;
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if (!(hp = (struct host_list *)malloc(sizeof(struct host_list))))
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errx(1, "no memory");
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hp->addr.s_addr = addr.s_addr;
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hp->next = hosts;
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hosts = hp;
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}
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static bool_t
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rstat_reply(caddr_t replyp, struct sockaddr_in *raddrp)
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{
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struct tm *tmp_time;
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struct tm host_time;
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struct tm host_uptime;
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char days_buf[16];
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char hours_buf[16];
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struct hostent *hp;
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char *host;
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statstime *host_stat = (statstime *)replyp;
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time_t tmp_time_t;
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if (search_host(raddrp->sin_addr))
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return(0);
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hp = gethostbyaddr((char *)&raddrp->sin_addr.s_addr,
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sizeof(struct in_addr), AF_INET);
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if (hp)
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host = hp->h_name;
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else
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host = inet_ntoa(raddrp->sin_addr);
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/* truncate hostname to fit nicely into field */
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if (strlen(host) > HOST_WIDTH)
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host[HOST_WIDTH] = '\0';
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printf("%-*s\t", HOST_WIDTH, host);
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if (sizeof(time_t) == sizeof(host_stat->curtime.tv_sec)) {
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tmp_time = localtime((time_t *)&host_stat->curtime.tv_sec);
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host_time = *tmp_time;
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host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec;
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tmp_time = gmtime((time_t *)&host_stat->curtime.tv_sec);
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host_uptime = *tmp_time;
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}
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else { /* non-32-bit time_t */
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tmp_time_t = host_stat->curtime.tv_sec;
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tmp_time = localtime(&tmp_time_t);
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host_time = *tmp_time;
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host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec;
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tmp_time_t = host_stat->curtime.tv_sec;
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tmp_time = gmtime(&tmp_time_t);
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host_uptime = *tmp_time;
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}
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#define updays (host_stat->curtime.tv_sec / 86400)
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if (host_uptime.tm_yday != 0)
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sprintf(days_buf, "%3d day%s, ", updays,
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(updays > 1) ? "s" : "");
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else
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days_buf[0] = '\0';
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if (host_uptime.tm_hour != 0)
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sprintf(hours_buf, "%2d:%02d, ",
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host_uptime.tm_hour, host_uptime.tm_min);
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else
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if (host_uptime.tm_min != 0)
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sprintf(hours_buf, "%2d mins, ", host_uptime.tm_min);
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else if (host_stat->curtime.tv_sec < 60)
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sprintf(hours_buf, "%2d secs, ", host_uptime.tm_sec);
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else
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hours_buf[0] = '\0';
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printf(" %2d:%02d%cm up %9.9s%9.9s load average: %.2f %.2f %.2f\n",
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(host_time.tm_hour % 12) ? host_time.tm_hour % 12 : 12,
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host_time.tm_min,
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(host_time.tm_hour >= 12) ? 'p' : 'a',
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days_buf,
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hours_buf,
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(double)host_stat->avenrun[0]/FSCALE,
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(double)host_stat->avenrun[1]/FSCALE,
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(double)host_stat->avenrun[2]/FSCALE);
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remember_host(raddrp->sin_addr);
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return(0);
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}
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static int
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onehost(char *host)
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{
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CLIENT *rstat_clnt;
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statstime host_stat;
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struct sockaddr_in addr;
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struct hostent *hp;
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struct timeval tv;
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hp = gethostbyname(host);
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if (hp == NULL) {
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warnx("unknown host \"%s\"", host);
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return(-1);
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}
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rstat_clnt = clnt_create(host, RSTATPROG, RSTATVERS_TIME, "udp");
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if (rstat_clnt == NULL) {
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warnx("%s %s", host, clnt_spcreateerror(""));
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return(-1);
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}
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bzero((char *)&host_stat, sizeof(host_stat));
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tv.tv_sec = 15; /* XXX ??? */
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tv.tv_usec = 0;
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if (clnt_call(rstat_clnt, RSTATPROC_STATS,
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(xdrproc_t)xdr_void, NULL,
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(xdrproc_t)xdr_statstime, &host_stat, tv) != RPC_SUCCESS) {
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warnx("%s: %s", host, clnt_sperror(rstat_clnt, host));
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clnt_destroy(rstat_clnt);
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return(-1);
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}
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addr.sin_addr.s_addr = *(int *)hp->h_addr;
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rstat_reply((caddr_t)&host_stat, &addr);
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clnt_destroy(rstat_clnt);
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return (0);
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}
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static void
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allhosts(void)
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{
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statstime host_stat;
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enum clnt_stat clnt_stat;
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clnt_stat = clnt_broadcast(RSTATPROG, RSTATVERS_TIME, RSTATPROC_STATS,
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(xdrproc_t)xdr_void, NULL,
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(xdrproc_t)xdr_statstime, &host_stat,
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(resultproc_t)rstat_reply);
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if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT)
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errx(1, "%s", clnt_sperrno(clnt_stat));
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}
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static void
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usage(void)
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{
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fprintf(stderr, "usage: rup [host ...]\n");
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exit(1);
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}
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int
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main(int argc, char *argv[])
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{
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int ch;
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while ((ch = getopt(argc, argv, "?")) != -1)
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switch (ch) {
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default:
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usage();
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/*NOTREACHED*/
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}
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setlinebuf(stdout);
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if (argc == optind)
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allhosts();
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else {
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for (; optind < argc; optind++)
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(void) onehost(argv[optind]);
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}
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exit(0);
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}
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