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 #ifndef lint 35 static char rcsid[] = "$Id: rup.c,v 1.7 1993/11/10 03:52:21 deraadt Exp $"; 36 #endif /* not lint */ 37 38 #include <stdio.h> 39 #include <stdlib.h> 40 #include <string.h> 41 #include <time.h> 42 #include <sys/param.h> 43 #include <sys/socket.h> 44 #include <netdb.h> 45 #include <rpc/rpc.h> 46 #include <arpa/inet.h> 47 48 #undef FSHIFT /* Use protocol's shift and scale values */ 49 #undef FSCALE 50 #include <rpcsvc/rstat.h> 51 52 #define HOST_WIDTH 24 53 54 char *argv0; 55 56 int printtime; /* print the remote host(s)'s time */ 57 58 struct host_list { 59 struct host_list *next; 60 struct in_addr addr; 61 } *hosts; 62 63 int 64 search_host(addr) 65 struct in_addr addr; 66 { 67 struct host_list *hp; 68 69 if (!hosts) 70 return(0); 71 72 for (hp = hosts; hp != NULL; hp = hp->next) { 73 if (hp->addr.s_addr == addr.s_addr) 74 return(1); 75 } 76 return(0); 77 } 78 79 void 80 remember_host(addr) 81 struct in_addr addr; 82 { 83 struct host_list *hp; 84 85 if (!(hp = (struct host_list *)malloc(sizeof(struct host_list)))) { 86 fprintf(stderr, "%s: no memory.\n", argv0); 87 exit(1); 88 } 89 hp->addr.s_addr = addr.s_addr; 90 hp->next = hosts; 91 hosts = hp; 92 } 93 94 rstat_reply(replyp, raddrp) 95 char *replyp; 96 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; 106 107 if (search_host(raddrp->sin_addr)) 108 return(0); 109 110 hp = gethostbyaddr((char *)&raddrp->sin_addr.s_addr, 111 sizeof(struct in_addr), AF_INET); 112 if (hp) 113 host = hp->h_name; 114 else 115 host = inet_ntoa(raddrp->sin_addr); 116 117 printf("%-*.*s", HOST_WIDTH, HOST_WIDTH, host); 118 119 tmp_time = localtime((time_t *)&host_stat->curtime.tv_sec); 120 host_time = *tmp_time; 121 122 host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec; 123 124 tmp_time = gmtime((time_t *)&host_stat->curtime.tv_sec); 125 host_uptime = *tmp_time; 126 127 if (host_uptime.tm_yday != 0) 128 sprintf(days_buf, "%3d day%s, ", host_uptime.tm_yday, 129 (host_uptime.tm_yday > 1) ? "s" : ""); 130 else 131 days_buf[0] = '\0'; 132 133 if (host_uptime.tm_hour != 0) 134 sprintf(hours_buf, "%2d:%02d, ", 135 host_uptime.tm_hour, host_uptime.tm_min); 136 else 137 if (host_uptime.tm_min != 0) 138 sprintf(hours_buf, "%2d mins, ", host_uptime.tm_min); 139 else 140 hours_buf[0] = '\0'; 141 142 if (printtime) 143 printf(" %2d:%02d%cm", host_time.tm_hour % 12, 144 host_time.tm_min, 145 (host_time.tm_hour >= 12) ? 'p' : 'a'); 146 147 printf(" up %9.9s%9.9s load average: %.2f %.2f %.2f\n", 148 days_buf, hours_buf, 149 (double)host_stat->avenrun[0]/FSCALE, 150 (double)host_stat->avenrun[1]/FSCALE, 151 (double)host_stat->avenrun[2]/FSCALE); 152 153 remember_host(raddrp->sin_addr); 154 return(0); 155 } 156 157 onehost(host) 158 char *host; 159 { 160 CLIENT *rstat_clnt; 161 statstime host_stat; 162 struct sockaddr_in addr; 163 struct hostent *hp; 164 165 hp = gethostbyname(host); 166 if (hp == NULL) { 167 fprintf(stderr, "%s: unknown host \"%s\"\n", 168 argv0, host); 169 return(-1); 170 } 171 172 rstat_clnt = clnt_create(host, RSTATPROG, RSTATVERS_TIME, "udp"); 173 if (rstat_clnt == NULL) { 174 fprintf(stderr, "%s: %s %s", argv0, host, clnt_spcreateerror("")); 175 return(-1); 176 } 177 178 bzero((char *)&host_stat, sizeof(host_stat)); 179 if (clnt_call(rstat_clnt, RSTATPROC_STATS, xdr_void, NULL, xdr_statstime, &host_stat, NULL) != RPC_SUCCESS) { 180 fprintf(stderr, "%s: %s: %s\n", argv0, host, clnt_sperror(rstat_clnt, host)); 181 return(-1); 182 } 183 184 addr.sin_addr.s_addr = *(int *)hp->h_addr; 185 rstat_reply((char *)&host_stat, &addr); 186 } 187 188 allhosts() 189 { 190 statstime host_stat; 191 enum clnt_stat clnt_stat; 192 193 clnt_stat = clnt_broadcast(RSTATPROG, RSTATVERS_TIME, RSTATPROC_STATS, 194 xdr_void, NULL, 195 xdr_statstime, &host_stat, rstat_reply); 196 if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT) { 197 fprintf(stderr, "%s: %s\n", argv0, clnt_sperrno(clnt_stat)); 198 exit(1); 199 } 200 } 201 202 usage() 203 { 204 fprintf(stderr, "Usage: %s [hosts ...]\n", argv0); 205 exit(1); 206 } 207 208 main(argc, argv) 209 int argc; 210 char *argv[]; 211 { 212 int ch; 213 extern int optind; 214 215 if (!(argv0 = rindex(argv[0], '/'))) 216 argv0 = argv[0]; 217 else 218 argv0++; 219 220 while ((ch = getopt(argc, argv, "?t")) != -1) 221 switch (ch) { 222 case 't': 223 printtime++; 224 break; 225 default: 226 usage(); 227 /*NOTREACHED*/ 228 } 229 230 setlinebuf(stdout); 231 if (argc == optind) 232 allhosts(); 233 else { 234 for (; optind < argc; optind++) 235 (void) onehost(argv[optind]); 236 } 237 exit(0); 238 } 239