1 /*-
2 * Copyright (c) 1993, John Brezak
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34 #include <sys/cdefs.h>
35
36 __FBSDID("$FreeBSD$");
37
38 #include <sys/param.h>
39 #include <sys/socket.h>
40
41 #include <rpc/rpc.h>
42 #include <rpc/pmap_clnt.h>
43
44 #undef FSHIFT /* Use protocol's shift and scale values */
45 #undef FSCALE
46
47 #include <rpcsvc/rstat.h>
48
49 #include <arpa/inet.h>
50
51 #include <err.h>
52 #include <netdb.h>
53 #include <stdio.h>
54 #include <string.h>
55 #include <stdlib.h>
56 #include <time.h>
57 #include <unistd.h>
58
59 #define HOST_WIDTH 15
60
61 struct host_list {
62 struct host_list *next;
63 struct in_addr addr;
64 } *hosts;
65
66 static int
search_host(struct in_addr addr)67 search_host(struct in_addr addr)
68 {
69 struct host_list *hp;
70
71 if (!hosts)
72 return(0);
73
74 for (hp = hosts; hp != NULL; hp = hp->next) {
75 if (hp->addr.s_addr == addr.s_addr)
76 return(1);
77 }
78 return(0);
79 }
80
81 static void
remember_host(struct in_addr addr)82 remember_host(struct in_addr addr)
83 {
84 struct host_list *hp;
85
86 if (!(hp = (struct host_list *)malloc(sizeof(struct host_list))))
87 errx(1, "no memory");
88 hp->addr.s_addr = addr.s_addr;
89 hp->next = hosts;
90 hosts = hp;
91 }
92
93 static bool_t
rstat_reply(caddr_t replyp,struct sockaddr_in * raddrp)94 rstat_reply(caddr_t replyp, struct sockaddr_in *raddrp)
95 {
96 struct tm *tmp_time;
97 struct tm host_time;
98 struct tm host_uptime;
99 char days_buf[16];
100 char hours_buf[16];
101 struct hostent *hp;
102 char *host;
103 statstime *host_stat = (statstime *)replyp;
104 time_t tmp_time_t;
105
106 if (search_host(raddrp->sin_addr))
107 return(0);
108
109 hp = gethostbyaddr((char *)&raddrp->sin_addr.s_addr,
110 sizeof(struct in_addr), AF_INET);
111 if (hp)
112 host = hp->h_name;
113 else
114 host = inet_ntoa(raddrp->sin_addr);
115
116 /* truncate hostname to fit nicely into field */
117 if (strlen(host) > HOST_WIDTH)
118 host[HOST_WIDTH] = '\0';
119
120 printf("%-*s\t", HOST_WIDTH, host);
121
122 if (sizeof(time_t) == sizeof(host_stat->curtime.tv_sec)) {
123 tmp_time = localtime((time_t *)&host_stat->curtime.tv_sec);
124 host_time = *tmp_time;
125
126 host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec;
127
128 tmp_time = gmtime((time_t *)&host_stat->curtime.tv_sec);
129 host_uptime = *tmp_time;
130 }
131 else { /* non-32-bit time_t */
132 tmp_time_t = host_stat->curtime.tv_sec;
133 tmp_time = localtime(&tmp_time_t);
134 host_time = *tmp_time;
135
136 host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec;
137
138 tmp_time_t = host_stat->curtime.tv_sec;
139 tmp_time = gmtime(&tmp_time_t);
140 host_uptime = *tmp_time;
141 }
142
143 #define updays (host_stat->curtime.tv_sec / 86400)
144 if (host_uptime.tm_yday != 0)
145 sprintf(days_buf, "%3d day%s, ", updays,
146 (updays > 1) ? "s" : "");
147 else
148 days_buf[0] = '\0';
149
150 if (host_uptime.tm_hour != 0)
151 sprintf(hours_buf, "%2d:%02d, ",
152 host_uptime.tm_hour, host_uptime.tm_min);
153 else
154 if (host_uptime.tm_min != 0)
155 sprintf(hours_buf, "%2d mins, ", host_uptime.tm_min);
156 else if (host_stat->curtime.tv_sec < 60)
157 sprintf(hours_buf, "%2d secs, ", host_uptime.tm_sec);
158 else
159 hours_buf[0] = '\0';
160
161 printf(" %2d:%02d%cm up %9.9s%9.9s load average: %.2f %.2f %.2f\n",
162 (host_time.tm_hour % 12) ? host_time.tm_hour % 12 : 12,
163 host_time.tm_min,
164 (host_time.tm_hour >= 12) ? 'p' : 'a',
165 days_buf,
166 hours_buf,
167 (double)host_stat->avenrun[0]/FSCALE,
168 (double)host_stat->avenrun[1]/FSCALE,
169 (double)host_stat->avenrun[2]/FSCALE);
170
171 remember_host(raddrp->sin_addr);
172 return(0);
173 }
174
175 static int
onehost(char * host)176 onehost(char *host)
177 {
178 CLIENT *rstat_clnt;
179 statstime host_stat;
180 struct sockaddr_in addr;
181 struct hostent *hp;
182 struct timeval tv;
183
184 hp = gethostbyname(host);
185 if (hp == NULL) {
186 warnx("unknown host \"%s\"", host);
187 return(-1);
188 }
189
190 rstat_clnt = clnt_create(host, RSTATPROG, RSTATVERS_TIME, "udp");
191 if (rstat_clnt == NULL) {
192 warnx("%s %s", host, clnt_spcreateerror(""));
193 return(-1);
194 }
195
196 bzero((char *)&host_stat, sizeof(host_stat));
197 tv.tv_sec = 15; /* XXX ??? */
198 tv.tv_usec = 0;
199 if (clnt_call(rstat_clnt, RSTATPROC_STATS,
200 (xdrproc_t)xdr_void, NULL,
201 (xdrproc_t)xdr_statstime, &host_stat, tv) != RPC_SUCCESS) {
202 warnx("%s: %s", host, clnt_sperror(rstat_clnt, host));
203 clnt_destroy(rstat_clnt);
204 return(-1);
205 }
206
207 addr.sin_addr.s_addr = *(int *)hp->h_addr;
208 rstat_reply((caddr_t)&host_stat, &addr);
209 clnt_destroy(rstat_clnt);
210 return (0);
211 }
212
213 static void
allhosts(void)214 allhosts(void)
215 {
216 statstime host_stat;
217 enum clnt_stat clnt_stat;
218
219 clnt_stat = clnt_broadcast(RSTATPROG, RSTATVERS_TIME, RSTATPROC_STATS,
220 (xdrproc_t)xdr_void, NULL,
221 (xdrproc_t)xdr_statstime, &host_stat,
222 (resultproc_t)rstat_reply);
223 if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT)
224 errx(1, "%s", clnt_sperrno(clnt_stat));
225 }
226
227 static void
usage(void)228 usage(void)
229 {
230 fprintf(stderr, "usage: rup [host ...]\n");
231 exit(1);
232 }
233
234 int
main(int argc,char * argv[])235 main(int argc, char *argv[])
236 {
237 int ch;
238
239 while ((ch = getopt(argc, argv, "?")) != -1)
240 switch (ch) {
241 default:
242 usage();
243 /*NOTREACHED*/
244 }
245
246 setlinebuf(stdout);
247 if (argc == optind)
248 allhosts();
249 else {
250 for (; optind < argc; optind++)
251 (void) onehost(argv[optind]);
252 }
253 exit(0);
254 }
255