1 /* $OpenBSD: rup.c,v 1.13 2001/06/18 22:19:04 deraadt Exp $ */ 2 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 #ifndef lint 37 static char rcsid[] = "$OpenBSD: rup.c,v 1.13 2001/06/18 22:19:04 deraadt Exp $"; 38 #endif /* not lint */ 39 40 #include <stdio.h> 41 #include <stdlib.h> 42 #include <string.h> 43 #include <time.h> 44 #include <sys/param.h> 45 #include <sys/socket.h> 46 #include <netdb.h> 47 #include <rpc/rpc.h> 48 #include <rpc/pmap_clnt.h> 49 #include <arpa/inet.h> 50 #include <err.h> 51 52 #undef FSHIFT /* Use protocol's shift and scale values */ 53 #undef FSCALE 54 #include <rpcsvc/rstat.h> 55 56 #define HOST_WIDTH 27 57 58 int printtime; /* print the remote host(s)'s time */ 59 60 struct host_list { 61 struct host_list *next; 62 struct in_addr addr; 63 } *hosts; 64 65 void usage __P((void)); 66 int print_rup_data __P((char *, statstime *host_stat)); 67 68 int 69 search_host(addr) 70 struct in_addr addr; 71 { 72 struct host_list *hp; 73 74 if (!hosts) 75 return(0); 76 77 for (hp = hosts; hp != NULL; hp = hp->next) { 78 if (hp->addr.s_addr == addr.s_addr) 79 return(1); 80 } 81 return(0); 82 } 83 84 void 85 remember_host(addr) 86 struct in_addr addr; 87 { 88 struct host_list *hp; 89 90 if (!(hp = (struct host_list *)malloc(sizeof(struct host_list)))) { 91 err(1, NULL); 92 /* NOTREACHED */ 93 } 94 hp->addr.s_addr = addr.s_addr; 95 hp->next = hosts; 96 hosts = hp; 97 } 98 99 100 101 struct rup_data { 102 char *host; 103 struct statstime statstime; 104 }; 105 struct rup_data *rup_data; 106 int rup_data_idx = 0; 107 int rup_data_max = 0; 108 109 enum sort_type { 110 SORT_NONE, 111 SORT_HOST, 112 SORT_LDAV, 113 SORT_UPTIME 114 }; 115 enum sort_type sort_type; 116 117 int 118 compare(d1, d2) 119 struct rup_data *d1; 120 struct rup_data *d2; 121 { 122 switch(sort_type) { 123 case SORT_HOST: 124 return strcmp(d1->host, d2->host); 125 case SORT_LDAV: 126 return d1->statstime.avenrun[0] 127 - d2->statstime.avenrun[0]; 128 case SORT_UPTIME: 129 return d1->statstime.boottime.tv_sec 130 - d2->statstime.boottime.tv_sec; 131 default: 132 /* something's really wrong here */ 133 abort(); 134 } 135 } 136 137 void 138 remember_rup_data(host, st) 139 char *host; 140 struct statstime *st; 141 { 142 if (rup_data_idx >= rup_data_max) { 143 rup_data_max += 16; 144 rup_data = realloc (rup_data, 145 rup_data_max * sizeof(struct rup_data)); 146 if (rup_data == NULL) { 147 err (1, NULL); 148 /* NOTREACHED */ 149 } 150 } 151 152 rup_data[rup_data_idx].host = strdup(host); 153 rup_data[rup_data_idx].statstime = *st; 154 rup_data_idx++; 155 } 156 157 158 int 159 rstat_reply(replyp, raddrp) 160 char *replyp; 161 struct sockaddr_in *raddrp; 162 { 163 struct hostent *hp; 164 char *host; 165 statstime *host_stat = (statstime *)replyp; 166 167 if (!search_host(raddrp->sin_addr)) { 168 hp = gethostbyaddr((char *)&raddrp->sin_addr.s_addr, 169 sizeof(struct in_addr), AF_INET); 170 if (hp) 171 host = hp->h_name; 172 else 173 host = inet_ntoa(raddrp->sin_addr); 174 175 remember_host(raddrp->sin_addr); 176 177 if (sort_type != SORT_NONE) 178 remember_rup_data(host, host_stat); 179 else 180 print_rup_data(host, host_stat); 181 } 182 183 return (0); 184 } 185 186 187 int 188 print_rup_data(host, host_stat) 189 char *host; 190 statstime *host_stat; 191 { 192 struct tm *tmp_time; 193 struct tm host_time; 194 unsigned ups=0,upm=0,uph=0,upd=0; 195 196 char days_buf[16]; 197 char hours_buf[16]; 198 199 if (printtime) 200 printf("%-*.*s", HOST_WIDTH-8, HOST_WIDTH-8, host); 201 else 202 printf("%-*.*s", HOST_WIDTH, HOST_WIDTH, host); 203 204 tmp_time = localtime((time_t *)&host_stat->curtime.tv_sec); 205 host_time = *tmp_time; 206 207 host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec; 208 209 if (host_stat->curtime.tv_sec > 0) 210 ups=host_stat->curtime.tv_sec; 211 upd=ups/(3600*24); 212 ups-=upd*3600*24; 213 uph=ups/3600; 214 ups-=uph*3600; 215 upm=ups/60; 216 217 if (upd != 0) 218 sprintf(days_buf, "%3u day%s, ", upd, 219 (upd > 1) ? "s" : ""); 220 else 221 days_buf[0] = '\0'; 222 223 if (uph != 0) 224 sprintf(hours_buf, "%2u:%02u, ", 225 uph, upm); 226 else 227 if (upm != 0) 228 sprintf(hours_buf, "%2u min%s ", upm, 229 (upm == 1) ? ", " : "s,"); 230 else 231 hours_buf[0] = '\0'; 232 233 if (printtime) 234 printf(" %2d:%02d%cm", 235 (host_time.tm_hour % 12) ? (host_time.tm_hour % 12) : 12, 236 host_time.tm_min, 237 (host_time.tm_hour >= 12) ? 'p' : 'a'); 238 239 printf(" up %9.9s%9.9s load average: %.2f %.2f %.2f\n", 240 days_buf, hours_buf, 241 (double)host_stat->avenrun[0]/FSCALE, 242 (double)host_stat->avenrun[1]/FSCALE, 243 (double)host_stat->avenrun[2]/FSCALE); 244 245 return(0); 246 } 247 248 249 void 250 onehost(host) 251 char *host; 252 { 253 CLIENT *rstat_clnt; 254 statstime host_stat; 255 static struct timeval timeout = {25, 0}; 256 extern char *__progname; 257 258 rstat_clnt = clnt_create(host, RSTATPROG, RSTATVERS_TIME, "udp"); 259 if (rstat_clnt == NULL) { 260 fprintf(stderr, "%s: %s", __progname, 261 clnt_spcreateerror(host)); 262 return; 263 } 264 265 bzero((char *)&host_stat, sizeof(host_stat)); 266 if (clnt_call(rstat_clnt, RSTATPROC_STATS, xdr_void, NULL, 267 xdr_statstime, &host_stat, timeout) != RPC_SUCCESS) { 268 fprintf(stderr, "%s: %s", __progname, 269 clnt_sperror(rstat_clnt, host)); 270 clnt_destroy(rstat_clnt); 271 return; 272 } 273 274 print_rup_data(host, &host_stat); 275 clnt_destroy(rstat_clnt); 276 } 277 278 void 279 allhosts() 280 { 281 statstime host_stat; 282 enum clnt_stat clnt_stat; 283 extern char *__progname; 284 size_t i; 285 286 if (sort_type != SORT_NONE) { 287 printf("collecting responses..."); 288 fflush(stdout); 289 } 290 291 clnt_stat = clnt_broadcast(RSTATPROG, RSTATVERS_TIME, RSTATPROC_STATS, 292 xdr_void, NULL, xdr_statstime, (char *)&host_stat, rstat_reply); 293 if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT) { 294 fprintf(stderr, "%s: %s\n", __progname, clnt_sperrno(clnt_stat)); 295 exit(1); 296 } 297 298 if (sort_type != SORT_NONE) { 299 putchar('\n'); 300 qsort(rup_data, rup_data_idx, sizeof(struct rup_data), 301 compare); 302 303 for (i = 0; i < rup_data_idx; i++) { 304 print_rup_data(rup_data[i].host, 305 &rup_data[i].statstime); 306 } 307 } 308 } 309 310 int 311 main(argc, argv) 312 int argc; 313 char *argv[]; 314 { 315 int ch; 316 extern int optind; 317 318 sort_type = SORT_NONE; 319 while ((ch = getopt(argc, argv, "dhlt")) != -1) 320 switch (ch) { 321 case 'd': 322 printtime = 1; 323 break; 324 case 'h': 325 sort_type = SORT_HOST; 326 break; 327 case 'l': 328 sort_type = SORT_LDAV; 329 break; 330 case 't': 331 sort_type = SORT_UPTIME; 332 break; 333 default: 334 usage(); 335 /*NOTREACHED*/ 336 } 337 338 setlinebuf(stdout); 339 340 if (argc == optind) 341 allhosts(); 342 else { 343 for (; optind < argc; optind++) 344 onehost(argv[optind]); 345 } 346 347 exit(0); 348 } 349 350 351 void 352 usage() 353 { 354 fprintf(stderr, "Usage: rup [-dhlt] [hosts ...]\n"); 355 exit(1); 356 } 357