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 #include <sys/cdefs.h> 37 38 __FBSDID("$FreeBSD$"); 39 40 #include <sys/param.h> 41 #include <sys/socket.h> 42 43 #include <rpc/rpc.h> 44 #include <rpc/pmap_clnt.h> 45 46 #undef FSHIFT /* Use protocol's shift and scale values */ 47 #undef FSCALE 48 49 #include <rpcsvc/rstat.h> 50 51 #include <arpa/inet.h> 52 53 #include <err.h> 54 #include <netdb.h> 55 #include <stdio.h> 56 #include <string.h> 57 #include <stdlib.h> 58 #include <time.h> 59 #include <unistd.h> 60 61 #define HOST_WIDTH 15 62 63 static struct host_list { 64 struct host_list *next; 65 struct in_addr addr; 66 } *hosts; 67 68 static int 69 search_host(struct in_addr addr) 70 { 71 struct host_list *hp; 72 73 if (!hosts) 74 return(0); 75 76 for (hp = hosts; hp != NULL; hp = hp->next) { 77 if (hp->addr.s_addr == addr.s_addr) 78 return(1); 79 } 80 return(0); 81 } 82 83 static void 84 remember_host(struct in_addr addr) 85 { 86 struct host_list *hp; 87 88 if (!(hp = (struct host_list *)malloc(sizeof(struct host_list)))) 89 errx(1, "no memory"); 90 hp->addr.s_addr = addr.s_addr; 91 hp->next = hosts; 92 hosts = hp; 93 } 94 95 static bool_t 96 rstat_reply(statstime *host_stat, struct sockaddr_in *raddrp) 97 { 98 struct tm *tmp_time; 99 struct tm host_time; 100 struct tm host_uptime; 101 char days_buf[16]; 102 char hours_buf[16]; 103 struct hostent *hp; 104 char *host; 105 time_t tmp_time_t; 106 107 if (search_host(raddrp->sin_addr)) 108 return(0); 109 110 hp = gethostbyaddr((char *)&raddrp->sin_addr.s_addr, 111 sizeof(struct in_addr), AF_INET); 112 if (hp) 113 host = hp->h_name; 114 else 115 host = inet_ntoa(raddrp->sin_addr); 116 117 /* truncate hostname to fit nicely into field */ 118 if (strlen(host) > HOST_WIDTH) 119 host[HOST_WIDTH] = '\0'; 120 121 printf("%-*s\t", HOST_WIDTH, host); 122 123 tmp_time_t = host_stat->curtime.tv_sec; 124 tmp_time = localtime(&tmp_time_t); 125 host_time = *tmp_time; 126 127 host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec; 128 129 tmp_time_t = host_stat->curtime.tv_sec; 130 tmp_time = gmtime(&tmp_time_t); 131 host_uptime = *tmp_time; 132 133 #define updays (host_stat->curtime.tv_sec / 86400) 134 if (host_uptime.tm_yday != 0) 135 sprintf(days_buf, "%3d day%s, ", updays, 136 (updays > 1) ? "s" : ""); 137 else 138 days_buf[0] = '\0'; 139 140 if (host_uptime.tm_hour != 0) 141 sprintf(hours_buf, "%2d:%02d, ", 142 host_uptime.tm_hour, host_uptime.tm_min); 143 else 144 if (host_uptime.tm_min != 0) 145 sprintf(hours_buf, "%2d mins, ", host_uptime.tm_min); 146 else if (host_stat->curtime.tv_sec < 60) 147 sprintf(hours_buf, "%2d secs, ", host_uptime.tm_sec); 148 else 149 hours_buf[0] = '\0'; 150 151 printf(" %2d:%02d%cm up %9.9s%9.9s load average: %.2f %.2f %.2f\n", 152 (host_time.tm_hour % 12) ? host_time.tm_hour % 12 : 12, 153 host_time.tm_min, 154 (host_time.tm_hour >= 12) ? 'p' : 'a', 155 days_buf, 156 hours_buf, 157 (double)host_stat->avenrun[0]/FSCALE, 158 (double)host_stat->avenrun[1]/FSCALE, 159 (double)host_stat->avenrun[2]/FSCALE); 160 161 remember_host(raddrp->sin_addr); 162 return(0); 163 } 164 165 static int 166 onehost(char *host) 167 { 168 CLIENT *rstat_clnt; 169 statstime host_stat; 170 struct sockaddr_in addr; 171 struct hostent *hp; 172 struct timeval tv; 173 174 hp = gethostbyname(host); 175 if (hp == NULL) { 176 warnx("unknown host \"%s\"", host); 177 return(-1); 178 } 179 180 rstat_clnt = clnt_create(host, RSTATPROG, RSTATVERS_TIME, "udp"); 181 if (rstat_clnt == NULL) { 182 warnx("%s %s", host, clnt_spcreateerror("")); 183 return(-1); 184 } 185 186 bzero((char *)&host_stat, sizeof(host_stat)); 187 tv.tv_sec = 15; /* XXX ??? */ 188 tv.tv_usec = 0; 189 if (clnt_call(rstat_clnt, RSTATPROC_STATS, 190 (xdrproc_t)xdr_void, NULL, 191 (xdrproc_t)xdr_statstime, &host_stat, tv) != RPC_SUCCESS) { 192 warnx("%s: %s", host, clnt_sperror(rstat_clnt, host)); 193 clnt_destroy(rstat_clnt); 194 return(-1); 195 } 196 197 memcpy(&addr.sin_addr.s_addr, hp->h_addr, sizeof(int)); 198 rstat_reply(&host_stat, &addr); 199 clnt_destroy(rstat_clnt); 200 return (0); 201 } 202 203 static void 204 allhosts(void) 205 { 206 statstime host_stat; 207 enum clnt_stat clnt_stat; 208 209 clnt_stat = clnt_broadcast(RSTATPROG, RSTATVERS_TIME, RSTATPROC_STATS, 210 (xdrproc_t)xdr_void, NULL, 211 (xdrproc_t)xdr_statstime, &host_stat, 212 (resultproc_t)rstat_reply); 213 if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT) 214 errx(1, "%s", clnt_sperrno(clnt_stat)); 215 } 216 217 static void 218 usage(void) 219 { 220 fprintf(stderr, "usage: rup [host ...]\n"); 221 exit(1); 222 } 223 224 int 225 main(int argc, char *argv[]) 226 { 227 int ch; 228 229 while ((ch = getopt(argc, argv, "?")) != -1) 230 switch (ch) { 231 default: 232 usage(); 233 } 234 235 setlinebuf(stdout); 236 if (argc == optind) 237 allhosts(); 238 else { 239 for (; optind < argc; optind++) 240 (void) onehost(argv[optind]); 241 } 242 exit(0); 243 } 244