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. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD: src/usr.bin/rup/rup.c,v 1.19 2005/12/04 18:25:26 philip Exp $ 30 * $DragonFly: src/usr.bin/rup/rup.c,v 1.5 2005/08/04 18:21:25 liamfoy Exp $ 31 */ 32 #include <sys/param.h> 33 #include <sys/socket.h> 34 35 #include <arpa/inet.h> 36 #include <rpc/rpc.h> 37 #include <rpc/pmap_clnt.h> 38 #undef FSHIFT /* Use protocol's shift and scale values */ 39 #undef FSCALE 40 #include <rpcsvc/rstat.h> 41 42 #include <err.h> 43 #include <netdb.h> 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <string.h> 47 #include <time.h> 48 #include <unistd.h> 49 50 #define HOST_WIDTH 15 51 52 struct host_list { 53 struct host_list *next; 54 struct in_addr addr; 55 } *hosts; 56 57 static int 58 search_host(struct in_addr addr) 59 { 60 struct host_list *hp; 61 62 if (hosts == NULL) 63 return(0); 64 65 for (hp = hosts; hp != NULL; hp = hp->next) { 66 if (hp->addr.s_addr == addr.s_addr) 67 return(1); 68 } 69 return(0); 70 } 71 72 static void 73 remember_host(struct in_addr addr) 74 { 75 struct host_list *hp; 76 77 if ((hp = malloc(sizeof(struct host_list))) == NULL) 78 err(1, "malloc failed"); 79 hp->addr.s_addr = addr.s_addr; 80 hp->next = hosts; 81 hosts = hp; 82 } 83 84 static bool_t 85 rstat_reply(caddr_t replyp, struct sockaddr_in *raddrp) 86 { 87 struct tm *tmp_time; 88 struct tm host_time; 89 struct tm host_uptime; 90 char days_buf[16]; 91 char hours_buf[16]; 92 struct hostent *hp; 93 char *host; 94 statstime *host_stat = (statstime *)replyp; 95 time_t tmp_time_t; 96 97 if (search_host(raddrp->sin_addr)) 98 return(0); 99 100 hp = gethostbyaddr(&raddrp->sin_addr.s_addr, sizeof(struct in_addr), 101 AF_INET); 102 if (hp) 103 host = hp->h_name; 104 else 105 host = inet_ntoa(raddrp->sin_addr); 106 107 /* truncate hostname to fit nicely into field */ 108 if (strlen(host) > HOST_WIDTH) 109 host[HOST_WIDTH] = '\0'; 110 111 printf("%-*s\t", HOST_WIDTH, host); 112 113 if (sizeof(time_t) == sizeof(host_stat->curtime.tv_sec)) { 114 tmp_time = localtime((time_t *)&host_stat->curtime.tv_sec); 115 host_time = *tmp_time; 116 117 host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec; 118 119 tmp_time = gmtime((time_t *)&host_stat->curtime.tv_sec); 120 host_uptime = *tmp_time; 121 } 122 else { /* non-32-bit time_t */ 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 } 133 134 #define updays (host_stat->curtime.tv_sec / 86400) 135 if (host_uptime.tm_yday != 0) 136 snprintf(days_buf, sizeof days_buf, "%3d day%s, ", updays, 137 (updays > 1) ? "s" : ""); 138 else 139 days_buf[0] = '\0'; 140 141 if (host_uptime.tm_hour != 0) 142 snprintf(hours_buf, sizeof hours_buf, "%2d:%02d, ", 143 host_uptime.tm_hour, host_uptime.tm_min); 144 else if (host_uptime.tm_min != 0) 145 snprintf(hours_buf, sizeof hours_buf, "%2d mins, ", 146 host_uptime.tm_min); 147 else if (host_stat->curtime.tv_sec < 60) 148 snprintf(hours_buf, sizeof hours_buf, "%2d secs, ", 149 host_uptime.tm_sec); 150 else 151 hours_buf[0] = '\0'; 152 153 printf(" %2d:%02d%cm up %9.9s%9.9s load average: %.2f %.2f %.2f\n", 154 (host_time.tm_hour % 12) ? host_time.tm_hour % 12 : 12, 155 host_time.tm_min, 156 (host_time.tm_hour >= 12) ? 'p' : 'a', 157 days_buf, 158 hours_buf, 159 (double)host_stat->avenrun[0]/FSCALE, 160 (double)host_stat->avenrun[1]/FSCALE, 161 (double)host_stat->avenrun[2]/FSCALE); 162 163 remember_host(raddrp->sin_addr); 164 return(0); 165 } 166 167 static int 168 onehost(const char *host) 169 { 170 CLIENT *rstat_clnt; 171 statstime host_stat; 172 struct sockaddr_in addr; 173 struct hostent *hp; 174 struct timeval tv; 175 176 hp = gethostbyname(host); 177 if (hp == NULL) { 178 herror("rup"); 179 return(1); 180 } 181 182 rstat_clnt = clnt_create(host, RSTATPROG, RSTATVERS_TIME, "udp"); 183 if (rstat_clnt == NULL) { 184 clnt_pcreateerror(host); 185 return(1); 186 } 187 188 bzero(&host_stat, sizeof(host_stat)); 189 tv.tv_sec = 15; /* XXX ??? */ 190 tv.tv_usec = 0; 191 if (clnt_call(rstat_clnt, RSTATPROC_STATS, (xdrproc_t)xdr_void, NULL, 192 (xdrproc_t)xdr_statstime, &host_stat, tv) != RPC_SUCCESS) { 193 clnt_perror(rstat_clnt, host); 194 clnt_destroy(rstat_clnt); 195 return(1); 196 } 197 198 addr.sin_addr.s_addr = *(int *)hp->h_addr; 199 rstat_reply((caddr_t)&host_stat, &addr); 200 clnt_destroy(rstat_clnt); 201 return (0); 202 } 203 204 static void 205 allhosts(void) 206 { 207 statstime host_stat; 208 enum clnt_stat clnt_stat; 209 210 clnt_stat = clnt_broadcast(RSTATPROG, RSTATVERS_TIME, RSTATPROC_STATS, 211 (xdrproc_t)xdr_void, NULL, 212 (xdrproc_t)xdr_statstime, &host_stat, 213 (resultproc_t)rstat_reply); 214 if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT) 215 errx(1, "%s", clnt_sperrno(clnt_stat)); 216 } 217 218 static void 219 usage(void) 220 { 221 fprintf(stderr, "usage: rup [host ...]\n"); 222 exit(1); 223 } 224 225 int 226 main(int argc, char *argv[]) 227 { 228 int ch, retval; 229 230 retval = 0; 231 while ((ch = getopt(argc, argv, "")) != -1) 232 switch (ch) { 233 default: 234 usage(); 235 /*NOTREACHED*/ 236 } 237 238 setlinebuf(stdout); 239 if (argc == optind) 240 allhosts(); 241 else { 242 for (; optind < argc; optind++) 243 retval += onehost(argv[optind]); 244 } 245 exit(retval ? 1 : 0); 246 } 247