1 /*-
2 * SPDX-License-Identifier: BSD-4-Clause
3 *
4 * Copyright (c) 1993, John Brezak
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36
37 #include <sys/param.h>
38 #include <sys/socket.h>
39
40 #include <rpc/rpc.h>
41 #include <rpc/pmap_clnt.h>
42
43 #undef FSHIFT /* Use protocol's shift and scale values */
44 #undef FSCALE
45
46 #include <rpcsvc/rstat.h>
47
48 #include <arpa/inet.h>
49
50 #include <err.h>
51 #include <netdb.h>
52 #include <stdio.h>
53 #include <string.h>
54 #include <stdlib.h>
55 #include <time.h>
56 #include <unistd.h>
57
58 #define HOST_WIDTH 15
59
60 static struct host_list {
61 struct host_list *next;
62 struct in_addr addr;
63 } *hosts;
64
65 static int
search_host(struct in_addr addr)66 search_host(struct in_addr addr)
67 {
68 struct host_list *hp;
69
70 if (!hosts)
71 return(0);
72
73 for (hp = hosts; hp != NULL; hp = hp->next) {
74 if (hp->addr.s_addr == addr.s_addr)
75 return(1);
76 }
77 return(0);
78 }
79
80 static void
remember_host(struct in_addr addr)81 remember_host(struct in_addr addr)
82 {
83 struct host_list *hp;
84
85 if (!(hp = (struct host_list *)malloc(sizeof(struct host_list))))
86 errx(1, "no memory");
87 hp->addr.s_addr = addr.s_addr;
88 hp->next = hosts;
89 hosts = hp;
90 }
91
92 static bool_t
rstat_reply(statstime * host_stat,struct sockaddr_in * raddrp)93 rstat_reply(statstime *host_stat, struct sockaddr_in *raddrp)
94 {
95 struct tm *tmp_time;
96 struct tm host_time;
97 struct tm host_uptime;
98 char days_buf[16];
99 char hours_buf[16];
100 struct hostent *hp;
101 char *host;
102 time_t tmp_time_t;
103
104 if (search_host(raddrp->sin_addr))
105 return(0);
106
107 hp = gethostbyaddr((char *)&raddrp->sin_addr.s_addr,
108 sizeof(struct in_addr), AF_INET);
109 if (hp)
110 host = hp->h_name;
111 else
112 host = inet_ntoa(raddrp->sin_addr);
113
114 /* truncate hostname to fit nicely into field */
115 if (strlen(host) > HOST_WIDTH)
116 host[HOST_WIDTH] = '\0';
117
118 printf("%-*s\t", HOST_WIDTH, host);
119
120 tmp_time_t = host_stat->curtime.tv_sec;
121 tmp_time = localtime(&tmp_time_t);
122 host_time = *tmp_time;
123
124 host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec;
125
126 tmp_time_t = host_stat->curtime.tv_sec;
127 tmp_time = gmtime(&tmp_time_t);
128 host_uptime = *tmp_time;
129
130 #define updays (host_stat->curtime.tv_sec / 86400)
131 if (host_uptime.tm_yday != 0)
132 sprintf(days_buf, "%3d day%s, ", updays,
133 (updays > 1) ? "s" : "");
134 else
135 days_buf[0] = '\0';
136
137 if (host_uptime.tm_hour != 0)
138 sprintf(hours_buf, "%2d:%02d, ",
139 host_uptime.tm_hour, host_uptime.tm_min);
140 else
141 if (host_uptime.tm_min != 0)
142 sprintf(hours_buf, "%2d mins, ", host_uptime.tm_min);
143 else if (host_stat->curtime.tv_sec < 60)
144 sprintf(hours_buf, "%2d secs, ", host_uptime.tm_sec);
145 else
146 hours_buf[0] = '\0';
147
148 printf(" %2d:%02d%cm up %9.9s%9.9s load average: %.2f %.2f %.2f\n",
149 (host_time.tm_hour % 12) ? host_time.tm_hour % 12 : 12,
150 host_time.tm_min,
151 (host_time.tm_hour >= 12) ? 'p' : 'a',
152 days_buf,
153 hours_buf,
154 (double)host_stat->avenrun[0]/FSCALE,
155 (double)host_stat->avenrun[1]/FSCALE,
156 (double)host_stat->avenrun[2]/FSCALE);
157
158 remember_host(raddrp->sin_addr);
159 return(0);
160 }
161
162 static int
onehost(char * host)163 onehost(char *host)
164 {
165 CLIENT *rstat_clnt;
166 statstime host_stat;
167 struct sockaddr_in addr;
168 struct hostent *hp;
169 struct timeval tv;
170
171 hp = gethostbyname(host);
172 if (hp == NULL) {
173 warnx("unknown host \"%s\"", host);
174 return(-1);
175 }
176
177 rstat_clnt = clnt_create(host, RSTATPROG, RSTATVERS_TIME, "udp");
178 if (rstat_clnt == NULL) {
179 warnx("%s %s", host, clnt_spcreateerror(""));
180 return(-1);
181 }
182
183 bzero((char *)&host_stat, sizeof(host_stat));
184 tv.tv_sec = 15; /* XXX ??? */
185 tv.tv_usec = 0;
186 if (clnt_call(rstat_clnt, RSTATPROC_STATS,
187 (xdrproc_t)xdr_void, NULL,
188 (xdrproc_t)xdr_statstime, &host_stat, tv) != RPC_SUCCESS) {
189 warnx("%s: %s", host, clnt_sperror(rstat_clnt, host));
190 clnt_destroy(rstat_clnt);
191 return(-1);
192 }
193
194 memcpy(&addr.sin_addr.s_addr, hp->h_addr, sizeof(int));
195 rstat_reply(&host_stat, &addr);
196 clnt_destroy(rstat_clnt);
197 return (0);
198 }
199
200 static void
allhosts(void)201 allhosts(void)
202 {
203 statstime host_stat;
204 enum clnt_stat clnt_stat;
205
206 clnt_stat = clnt_broadcast(RSTATPROG, RSTATVERS_TIME, RSTATPROC_STATS,
207 (xdrproc_t)xdr_void, NULL,
208 (xdrproc_t)xdr_statstime, &host_stat,
209 (resultproc_t)rstat_reply);
210 if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT)
211 errx(1, "%s", clnt_sperrno(clnt_stat));
212 }
213
214 static void
usage(void)215 usage(void)
216 {
217 fprintf(stderr, "usage: rup [host ...]\n");
218 exit(1);
219 }
220
221 int
main(int argc,char * argv[])222 main(int argc, char *argv[])
223 {
224 int ch;
225
226 while ((ch = getopt(argc, argv, "?")) != -1)
227 switch (ch) {
228 default:
229 usage();
230 }
231
232 setlinebuf(stdout);
233 if (argc == optind)
234 allhosts();
235 else {
236 for (; optind < argc; optind++)
237 (void) onehost(argv[optind]);
238 }
239 exit(0);
240 }
241