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 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 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 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 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 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 228 usage(void) 229 { 230 fprintf(stderr, "usage: rup [host ...]\n"); 231 exit(1); 232 } 233 234 int 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