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 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(caddr_t replyp, 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 statstime *host_stat = (statstime *)replyp; 106 time_t tmp_time_t; 107 108 if (search_host(raddrp->sin_addr)) 109 return(0); 110 111 hp = gethostbyaddr((char *)&raddrp->sin_addr.s_addr, 112 sizeof(struct in_addr), AF_INET); 113 if (hp) 114 host = hp->h_name; 115 else 116 host = inet_ntoa(raddrp->sin_addr); 117 118 /* truncate hostname to fit nicely into field */ 119 if (strlen(host) > HOST_WIDTH) 120 host[HOST_WIDTH] = '\0'; 121 122 printf("%-*s\t", HOST_WIDTH, host); 123 124 if (sizeof(time_t) == sizeof(host_stat->curtime.tv_sec)) { 125 tmp_time = localtime((time_t *)&host_stat->curtime.tv_sec); 126 host_time = *tmp_time; 127 128 host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec; 129 130 tmp_time = gmtime((time_t *)&host_stat->curtime.tv_sec); 131 host_uptime = *tmp_time; 132 } 133 else { /* non-32-bit time_t */ 134 tmp_time_t = host_stat->curtime.tv_sec; 135 tmp_time = localtime(&tmp_time_t); 136 host_time = *tmp_time; 137 138 host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec; 139 140 tmp_time_t = host_stat->curtime.tv_sec; 141 tmp_time = gmtime(&tmp_time_t); 142 host_uptime = *tmp_time; 143 } 144 145 #define updays (host_stat->curtime.tv_sec / 86400) 146 if (host_uptime.tm_yday != 0) 147 sprintf(days_buf, "%3d day%s, ", updays, 148 (updays > 1) ? "s" : ""); 149 else 150 days_buf[0] = '\0'; 151 152 if (host_uptime.tm_hour != 0) 153 sprintf(hours_buf, "%2d:%02d, ", 154 host_uptime.tm_hour, host_uptime.tm_min); 155 else 156 if (host_uptime.tm_min != 0) 157 sprintf(hours_buf, "%2d mins, ", host_uptime.tm_min); 158 else if (host_stat->curtime.tv_sec < 60) 159 sprintf(hours_buf, "%2d secs, ", host_uptime.tm_sec); 160 else 161 hours_buf[0] = '\0'; 162 163 printf(" %2d:%02d%cm up %9.9s%9.9s load average: %.2f %.2f %.2f\n", 164 (host_time.tm_hour % 12) ? host_time.tm_hour % 12 : 12, 165 host_time.tm_min, 166 (host_time.tm_hour >= 12) ? 'p' : 'a', 167 days_buf, 168 hours_buf, 169 (double)host_stat->avenrun[0]/FSCALE, 170 (double)host_stat->avenrun[1]/FSCALE, 171 (double)host_stat->avenrun[2]/FSCALE); 172 173 remember_host(raddrp->sin_addr); 174 return(0); 175 } 176 177 static int 178 onehost(char *host) 179 { 180 CLIENT *rstat_clnt; 181 statstime host_stat; 182 struct sockaddr_in addr; 183 struct hostent *hp; 184 struct timeval tv; 185 186 hp = gethostbyname(host); 187 if (hp == NULL) { 188 warnx("unknown host \"%s\"", host); 189 return(-1); 190 } 191 192 rstat_clnt = clnt_create(host, RSTATPROG, RSTATVERS_TIME, "udp"); 193 if (rstat_clnt == NULL) { 194 warnx("%s %s", host, clnt_spcreateerror("")); 195 return(-1); 196 } 197 198 bzero((char *)&host_stat, sizeof(host_stat)); 199 tv.tv_sec = 15; /* XXX ??? */ 200 tv.tv_usec = 0; 201 if (clnt_call(rstat_clnt, RSTATPROC_STATS, 202 (xdrproc_t)xdr_void, NULL, 203 (xdrproc_t)xdr_statstime, &host_stat, tv) != RPC_SUCCESS) { 204 warnx("%s: %s", host, clnt_sperror(rstat_clnt, host)); 205 clnt_destroy(rstat_clnt); 206 return(-1); 207 } 208 209 addr.sin_addr.s_addr = *(int *)hp->h_addr; 210 rstat_reply((caddr_t)&host_stat, &addr); 211 clnt_destroy(rstat_clnt); 212 return (0); 213 } 214 215 static void 216 allhosts(void) 217 { 218 statstime host_stat; 219 enum clnt_stat clnt_stat; 220 221 clnt_stat = clnt_broadcast(RSTATPROG, RSTATVERS_TIME, RSTATPROC_STATS, 222 (xdrproc_t)xdr_void, NULL, 223 (xdrproc_t)xdr_statstime, &host_stat, 224 (resultproc_t)rstat_reply); 225 if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT) 226 errx(1, "%s", clnt_sperrno(clnt_stat)); 227 } 228 229 static void 230 usage(void) 231 { 232 fprintf(stderr, "usage: rup [host ...]\n"); 233 exit(1); 234 } 235 236 int 237 main(int argc, char *argv[]) 238 { 239 int ch; 240 241 while ((ch = getopt(argc, argv, "?")) != -1) 242 switch (ch) { 243 default: 244 usage(); 245 /*NOTREACHED*/ 246 } 247 248 setlinebuf(stdout); 249 if (argc == optind) 250 allhosts(); 251 else { 252 for (; optind < argc; optind++) 253 (void) onehost(argv[optind]); 254 } 255 exit(0); 256 } 257