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/*-
* Copyright (c) 1993, John Brezak
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static char rcsid[] = "$Id: rup.c,v 1.2 1995/05/30 06:33:26 rgrimes Exp $";
#endif /* not lint */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <netdb.h>
#include <rpc/rpc.h>
#include <arpa/inet.h>
#undef FSHIFT /* Use protocol's shift and scale values */
#undef FSCALE
#include <rpcsvc/rstat.h>
#define HOST_WIDTH 15
char *argv0;
struct host_list {
struct host_list *next;
struct in_addr addr;
} *hosts;
int search_host(struct in_addr addr)
{
struct host_list *hp;
if (!hosts)
return(0);
for (hp = hosts; hp != NULL; hp = hp->next) {
if (hp->addr.s_addr == addr.s_addr)
return(1);
}
return(0);
}
void remember_host(struct in_addr addr)
{
struct host_list *hp;
if (!(hp = (struct host_list *)malloc(sizeof(struct host_list)))) {
fprintf(stderr, "%s: no memory.\n", argv0);
exit(1);
}
hp->addr.s_addr = addr.s_addr;
hp->next = hosts;
hosts = hp;
}
rstat_reply(char *replyp, struct sockaddr_in *raddrp)
{
struct tm *tmp_time;
struct tm host_time;
struct tm host_uptime;
char days_buf[16];
char hours_buf[16];
struct hostent *hp;
char *host;
statstime *host_stat = (statstime *)replyp;
int year1, year2;
if (search_host(raddrp->sin_addr))
return(0);
hp = gethostbyaddr((char *)&raddrp->sin_addr.s_addr,
sizeof(struct in_addr), AF_INET);
if (hp)
host = hp->h_name;
else
host = inet_ntoa(raddrp->sin_addr);
/* truncate hostname to fit nicely into field */
if (strlen(host) > HOST_WIDTH)
host[HOST_WIDTH] = '\0';
printf("%-*s\t", HOST_WIDTH, host);
tmp_time = localtime((time_t *)&host_stat->curtime.tv_sec);
host_time = *tmp_time;
tmp_time = gmtime((time_t *)&host_stat->curtime.tv_sec);
year1 = tmp_time->tm_year;
tmp_time = gmtime((time_t *)&host_stat->boottime.tv_sec);
year2 = tmp_time->tm_year;
host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec;
tmp_time = gmtime((time_t *)&host_stat->curtime.tv_sec);
host_uptime = *tmp_time;
if (host_uptime.tm_yday != 0)
sprintf(days_buf, "%3d day%s, ", host_uptime.tm_yday +
(365 * (year1 - year2)),
((host_uptime.tm_yday + (365*(year1 - year2)))> 1) ?
"s" : "");
else
days_buf[0] = '\0';
if (host_uptime.tm_hour != 0)
sprintf(hours_buf, "%2d:%02d, ",
host_uptime.tm_hour, host_uptime.tm_min);
else
if (host_uptime.tm_min != 0)
sprintf(hours_buf, "%2d mins, ", host_uptime.tm_min);
else
hours_buf[0] = '\0';
printf(" %2d:%02d%cm up %9.9s%9.9s load average: %.2f %.2f %.2f\n",
host_time.tm_hour % 12,
host_time.tm_min,
(host_time.tm_hour >= 12) ? 'p' : 'a',
days_buf,
hours_buf,
(double)host_stat->avenrun[0]/FSCALE,
(double)host_stat->avenrun[1]/FSCALE,
(double)host_stat->avenrun[2]/FSCALE);
remember_host(raddrp->sin_addr);
return(0);
}
onehost(char *host)
{
CLIENT *rstat_clnt;
statstime host_stat;
struct sockaddr_in addr;
struct hostent *hp;
hp = gethostbyname(host);
if (hp == NULL) {
fprintf(stderr, "%s: unknown host \"%s\"\n",
argv0, host);
return(-1);
}
rstat_clnt = clnt_create(host, RSTATPROG, RSTATVERS_TIME, "udp");
if (rstat_clnt == NULL) {
fprintf(stderr, "%s: %s %s", argv0, host, clnt_spcreateerror(""));
return(-1);
}
bzero((char *)&host_stat, sizeof(host_stat));
if (clnt_call(rstat_clnt, RSTATPROC_STATS, xdr_void, NULL, xdr_statstime, &host_stat, NULL) != RPC_SUCCESS) {
fprintf(stderr, "%s: %s: %s\n", argv0, host, clnt_sperror(rstat_clnt, host));
return(-1);
}
addr.sin_addr.s_addr = *(int *)hp->h_addr;
rstat_reply((char *)&host_stat, &addr);
}
allhosts()
{
statstime host_stat;
enum clnt_stat clnt_stat;
clnt_stat = clnt_broadcast(RSTATPROG, RSTATVERS_TIME, RSTATPROC_STATS,
xdr_void, NULL,
xdr_statstime, &host_stat, rstat_reply);
if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT) {
fprintf(stderr, "%s: %s\n", argv0, clnt_sperrno(clnt_stat));
exit(1);
}
}
usage()
{
fprintf(stderr, "Usage: %s [hosts ...]\n", argv0);
exit(1);
}
main(int argc, char *argv[])
{
int ch;
extern int optind;
if (!(argv0 = rindex(argv[0], '/')))
argv0 = argv[0];
else
argv0++;
while ((ch = getopt(argc, argv, "?")) != -1)
switch (ch) {
default:
usage();
/*NOTREACHED*/
}
setlinebuf(stdout);
if (argc == optind)
allhosts();
else {
for (; optind < argc; optind++)
(void) onehost(argv[optind]);
}
exit(0);
}
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