NetBSD/usr.bin/rup/rup.c

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/* $NetBSD: rup.c,v 1.18 1999/07/30 01:29:30 hubertf Exp $ */
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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.
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: rup.c,v 1.18 1999/07/30 01:29:30 hubertf Exp $");
#endif /* not lint */
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#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <err.h>
#include <netdb.h>
#include <rpc/rpc.h>
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#include <stdio.h>
#include <stdlib.h>
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#include <string.h>
#include <time.h>
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#include <unistd.h>
#undef FSHIFT /* Use protocol's shift and scale values */
#undef FSCALE
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#include <rpcsvc/rstat.h>
#define HOST_WIDTH 24
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int printtime; /* print the remote host(s)'s time */
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struct host_list {
struct host_list *next;
struct in_addr addr;
} *hosts;
int search_host __P((struct in_addr));
void remember_host __P((struct in_addr));
int
search_host(addr)
struct in_addr addr;
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{
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(addr)
struct in_addr addr;
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{
struct host_list *hp;
if (!(hp = (struct host_list *)malloc(sizeof(struct host_list)))) {
err(1, "malloc");
/* NOTREACHED */
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}
hp->addr.s_addr = addr.s_addr;
hp->next = hosts;
hosts = hp;
}
struct rup_data {
char *host;
struct statstime statstime;
};
struct rup_data *rup_data;
int rup_data_idx = 0;
int rup_data_max = 0;
enum sort_type {
SORT_NONE,
SORT_HOST,
SORT_LDAV,
SORT_UPTIME
};
enum sort_type sort_type;
int compare __P((struct rup_data *, struct rup_data *));
void remember_rup_data __P((char *, struct statstime *));
int rstat_reply __P((char *, struct sockaddr_in *));
int print_rup_data __P((char *, statstime *));
void onehost __P((char *));
void allhosts __P((void));
int main __P((int, char *[]));
void usage __P((void));
int
compare(d1, d2)
struct rup_data *d1;
struct rup_data *d2;
{
switch(sort_type) {
case SORT_HOST:
return strcmp(d1->host, d2->host);
case SORT_LDAV:
return d1->statstime.avenrun[0]
- d2->statstime.avenrun[0];
case SORT_UPTIME:
return d1->statstime.boottime.tv_sec
- d2->statstime.boottime.tv_sec;
default:
/* something's really wrong here */
abort();
}
}
void
remember_rup_data(host, st)
char *host;
struct statstime *st;
{
if (rup_data_idx >= rup_data_max) {
rup_data_max += 16;
rup_data = realloc (rup_data,
rup_data_max * sizeof(struct rup_data));
if (rup_data == NULL) {
err (1, "realloc");
/* NOTREACHED */
}
}
rup_data[rup_data_idx].host = strdup(host);
rup_data[rup_data_idx].statstime = *st;
rup_data_idx++;
}
int
rstat_reply(replyp, raddrp)
char *replyp;
struct sockaddr_in *raddrp;
{
struct hostent *hp;
char *host;
statstime *host_stat = (statstime *)replyp;
if (!search_host(raddrp->sin_addr)) {
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);
remember_host(raddrp->sin_addr);
if (sort_type != SORT_NONE) {
remember_rup_data(host, host_stat);
} else {
print_rup_data(host, host_stat);
}
}
return (0);
}
int
print_rup_data(host, host_stat)
char *host;
statstime *host_stat;
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{
struct tm *tmp_time;
struct tm host_time;
unsigned ups=0,upm=0,uph=0,upd=0;
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char days_buf[16];
char hours_buf[16];
if (printtime)
printf("%-*.*s", HOST_WIDTH-4, HOST_WIDTH-4, host);
else
printf("%-*.*s", HOST_WIDTH, HOST_WIDTH, host);
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tmp_time = localtime((time_t *)&host_stat->curtime.tv_sec);
host_time = *tmp_time;
host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec;
ups=host_stat->curtime.tv_sec;
upd=ups/(3600*24);
ups-=upd*3600*24;
uph=ups/3600;
ups-=uph*3600;
upm=ups/60;
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if (upd != 0)
sprintf(days_buf, "%3u day%s, ", upd,
(upd > 1) ? "s" : "");
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else
days_buf[0] = '\0';
if (uph != 0)
sprintf(hours_buf, "%2u:%02u, ",
uph, upm);
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else
if (upm != 0)
sprintf(hours_buf, "%2u min%s ", upm,
(upm == 1) ? ", " : "s,");
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else
hours_buf[0] = '\0';
if (printtime)
printf(" %2d:%02d%cm",
(host_time.tm_hour % 12) ? (host_time.tm_hour % 12) : 12,
host_time.tm_min, (host_time.tm_hour >= 12) ? 'p' : 'a');
printf(" up %9.9s%9.9s load average: %.2f %.2f %.2f\n",
days_buf, hours_buf,
(double)host_stat->avenrun[0]/FSCALE,
(double)host_stat->avenrun[1]/FSCALE,
(double)host_stat->avenrun[2]/FSCALE);
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return(0);
}
void
onehost(host)
char *host;
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{
CLIENT *rstat_clnt;
statstime host_stat;
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static struct timeval timeout = {25, 0};
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rstat_clnt = clnt_create(host, RSTATPROG, RSTATVERS_TIME, "udp");
if (rstat_clnt == NULL) {
warnx("%s", clnt_spcreateerror(host));
return;
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}
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memset((char *)&host_stat, 0, sizeof(host_stat));
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if (clnt_call(rstat_clnt, RSTATPROC_STATS, xdr_void, NULL, xdr_statstime, &host_stat, timeout) != RPC_SUCCESS) {
warnx("%s", clnt_sperror(rstat_clnt, host));
return;
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}
print_rup_data(host, &host_stat);
clnt_destroy(rstat_clnt);
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}
void
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allhosts()
{
statstime host_stat;
enum clnt_stat clnt_stat;
size_t i;
if (sort_type != SORT_NONE) {
printf("collecting responses...");
fflush(stdout);
}
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clnt_stat = clnt_broadcast(RSTATPROG, RSTATVERS_TIME, RSTATPROC_STATS,
xdr_void, NULL,
xdr_statstime, (char*)&host_stat, rstat_reply);
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if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT) {
warnx("%s", clnt_sperrno(clnt_stat));
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exit(1);
}
if (sort_type != SORT_NONE) {
putchar('\n');
qsort(rup_data, rup_data_idx, sizeof(struct rup_data),
(int (*)(const void*, const void*))compare);
for (i = 0; i < rup_data_idx; i++) {
print_rup_data(rup_data[i].host, &rup_data[i].statstime);
}
}
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}
int
main(argc, argv)
int argc;
char *argv[];
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{
int ch;
extern int optind;
sort_type = SORT_NONE;
while ((ch = getopt(argc, argv, "dhlt")) != -1)
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switch (ch) {
case 'd':
printtime = 1;
break;
case 'h':
sort_type = SORT_HOST;
break;
case 'l':
sort_type = SORT_LDAV;
break;
case 't':
sort_type = SORT_UPTIME;
break;
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default:
usage();
/*NOTREACHED*/
}
setlinebuf(stdout);
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if (argc == optind)
allhosts();
else {
for (; optind < argc; optind++)
onehost(argv[optind]);
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}
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exit(0);
}
void
usage()
{
fprintf(stderr, "Usage: rup [-dhlt] [hosts ...]\n");
exit(1);
}