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 * $FreeBSD: src/usr.bin/rup/rup.c,v 1.19 2005/12/04 18:25:26 philip Exp $ 34 * $DragonFly: src/usr.bin/rup/rup.c,v 1.5 2005/08/04 18:21:25 liamfoy Exp $ 35 */ 36 #include <sys/param.h> 37 #include <sys/socket.h> 38 39 #include <arpa/inet.h> 40 #include <rpc/rpc.h> 41 #include <rpc/pmap_clnt.h> 42 #undef FSHIFT /* Use protocol's shift and scale values */ 43 #undef FSCALE 44 #include <rpcsvc/rstat.h> 45 46 #include <err.h> 47 #include <netdb.h> 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <string.h> 51 #include <time.h> 52 #include <unistd.h> 53 54 #define HOST_WIDTH 15 55 56 struct host_list { 57 struct host_list *next; 58 struct in_addr addr; 59 } *hosts; 60 61 static int 62 search_host(struct in_addr addr) 63 { 64 struct host_list *hp; 65 66 if (hosts == NULL) 67 return(0); 68 69 for (hp = hosts; hp != NULL; hp = hp->next) { 70 if (hp->addr.s_addr == addr.s_addr) 71 return(1); 72 } 73 return(0); 74 } 75 76 static void 77 remember_host(struct in_addr addr) 78 { 79 struct host_list *hp; 80 81 if ((hp = malloc(sizeof(struct host_list))) == NULL) 82 err(1, "malloc failed"); 83 hp->addr.s_addr = addr.s_addr; 84 hp->next = hosts; 85 hosts = hp; 86 } 87 88 static bool_t 89 rstat_reply(caddr_t replyp, struct sockaddr_in *raddrp) 90 { 91 struct tm *tmp_time; 92 struct tm host_time; 93 struct tm host_uptime; 94 char days_buf[16]; 95 char hours_buf[16]; 96 struct hostent *hp; 97 char *host; 98 statstime *host_stat = (statstime *)replyp; 99 time_t tmp_time_t; 100 101 if (search_host(raddrp->sin_addr)) 102 return(0); 103 104 hp = gethostbyaddr(&raddrp->sin_addr.s_addr, sizeof(struct in_addr), 105 AF_INET); 106 if (hp) 107 host = hp->h_name; 108 else 109 host = inet_ntoa(raddrp->sin_addr); 110 111 /* truncate hostname to fit nicely into field */ 112 if (strlen(host) > HOST_WIDTH) 113 host[HOST_WIDTH] = '\0'; 114 115 printf("%-*s\t", HOST_WIDTH, host); 116 117 if (sizeof(time_t) == sizeof(host_stat->curtime.tv_sec)) { 118 tmp_time = localtime((time_t *)&host_stat->curtime.tv_sec); 119 host_time = *tmp_time; 120 121 host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec; 122 123 tmp_time = gmtime((time_t *)&host_stat->curtime.tv_sec); 124 host_uptime = *tmp_time; 125 } 126 else { /* non-32-bit time_t */ 127 tmp_time_t = host_stat->curtime.tv_sec; 128 tmp_time = localtime(&tmp_time_t); 129 host_time = *tmp_time; 130 131 host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec; 132 133 tmp_time_t = host_stat->curtime.tv_sec; 134 tmp_time = gmtime(&tmp_time_t); 135 host_uptime = *tmp_time; 136 } 137 138 #define updays (host_stat->curtime.tv_sec / 86400) 139 if (host_uptime.tm_yday != 0) 140 snprintf(days_buf, sizeof days_buf, "%3d day%s, ", updays, 141 (updays > 1) ? "s" : ""); 142 else 143 days_buf[0] = '\0'; 144 145 if (host_uptime.tm_hour != 0) 146 snprintf(hours_buf, sizeof hours_buf, "%2d:%02d, ", 147 host_uptime.tm_hour, host_uptime.tm_min); 148 else if (host_uptime.tm_min != 0) 149 snprintf(hours_buf, sizeof hours_buf, "%2d mins, ", 150 host_uptime.tm_min); 151 else if (host_stat->curtime.tv_sec < 60) 152 snprintf(hours_buf, sizeof hours_buf, "%2d secs, ", 153 host_uptime.tm_sec); 154 else 155 hours_buf[0] = '\0'; 156 157 printf(" %2d:%02d%cm up %9.9s%9.9s load average: %.2f %.2f %.2f\n", 158 (host_time.tm_hour % 12) ? host_time.tm_hour % 12 : 12, 159 host_time.tm_min, 160 (host_time.tm_hour >= 12) ? 'p' : 'a', 161 days_buf, 162 hours_buf, 163 (double)host_stat->avenrun[0]/FSCALE, 164 (double)host_stat->avenrun[1]/FSCALE, 165 (double)host_stat->avenrun[2]/FSCALE); 166 167 remember_host(raddrp->sin_addr); 168 return(0); 169 } 170 171 static int 172 onehost(const char *host) 173 { 174 CLIENT *rstat_clnt; 175 statstime host_stat; 176 struct sockaddr_in addr; 177 struct hostent *hp; 178 struct timeval tv; 179 180 hp = gethostbyname(host); 181 if (hp == NULL) { 182 herror("rup"); 183 return(1); 184 } 185 186 rstat_clnt = clnt_create(host, RSTATPROG, RSTATVERS_TIME, "udp"); 187 if (rstat_clnt == NULL) { 188 clnt_pcreateerror(host); 189 return(1); 190 } 191 192 bzero(&host_stat, sizeof(host_stat)); 193 tv.tv_sec = 15; /* XXX ??? */ 194 tv.tv_usec = 0; 195 if (clnt_call(rstat_clnt, RSTATPROC_STATS, (xdrproc_t)xdr_void, NULL, 196 (xdrproc_t)xdr_statstime, &host_stat, tv) != RPC_SUCCESS) { 197 clnt_perror(rstat_clnt, host); 198 clnt_destroy(rstat_clnt); 199 return(1); 200 } 201 202 addr.sin_addr.s_addr = *(int *)hp->h_addr; 203 rstat_reply((caddr_t)&host_stat, &addr); 204 clnt_destroy(rstat_clnt); 205 return (0); 206 } 207 208 static void 209 allhosts(void) 210 { 211 statstime host_stat; 212 enum clnt_stat clnt_stat; 213 214 clnt_stat = clnt_broadcast(RSTATPROG, RSTATVERS_TIME, RSTATPROC_STATS, 215 (xdrproc_t)xdr_void, NULL, 216 (xdrproc_t)xdr_statstime, &host_stat, 217 (resultproc_t)rstat_reply); 218 if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT) 219 errx(1, "%s", clnt_sperrno(clnt_stat)); 220 } 221 222 static void 223 usage(void) 224 { 225 fprintf(stderr, "usage: rup [host ...]\n"); 226 exit(1); 227 } 228 229 int 230 main(int argc, char *argv[]) 231 { 232 int ch, retval; 233 234 retval = 0; 235 while ((ch = getopt(argc, argv, "")) != -1) 236 switch (ch) { 237 default: 238 usage(); 239 /*NOTREACHED*/ 240 } 241 242 setlinebuf(stdout); 243 if (argc == optind) 244 allhosts(); 245 else { 246 for (; optind < argc; optind++) 247 retval += onehost(argv[optind]); 248 } 249 exit(retval ? 1 : 0); 250 } 251