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 1.11.2.2 2001/07/02 23:43:04 mikeh Exp $ 34 * $DragonFly: src/usr.bin/rup/rup.c,v 1.3 2004/09/14 18:36:40 joerg Exp $ 35 */ 36 37 #include <err.h> 38 #include <stdio.h> 39 #include <stdlib.h> 40 #include <string.h> 41 #include <time.h> 42 #include <unistd.h> 43 #include <sys/param.h> 44 #include <sys/socket.h> 45 #include <netdb.h> 46 #include <rpc/rpc.h> 47 #include <rpc/pmap_clnt.h> 48 #include <arpa/inet.h> 49 #undef FSHIFT /* Use protocol's shift and scale values */ 50 #undef FSCALE 51 #include <rpcsvc/rstat.h> 52 53 #define HOST_WIDTH 15 54 55 struct host_list { 56 struct host_list *next; 57 struct in_addr addr; 58 } *hosts; 59 60 static int 61 search_host(struct in_addr addr) 62 { 63 struct host_list *hp; 64 65 if (hosts == NULL) 66 return(0); 67 68 for (hp = hosts; hp != NULL; hp = hp->next) { 69 if (hp->addr.s_addr == addr.s_addr) 70 return(1); 71 } 72 return(0); 73 } 74 75 static void 76 remember_host(struct in_addr addr) 77 { 78 struct host_list *hp; 79 80 if ((hp = malloc(sizeof(struct host_list))) == NULL) 81 err(1, "malloc failed"); 82 hp->addr.s_addr = addr.s_addr; 83 hp->next = hosts; 84 hosts = hp; 85 } 86 87 static int 88 rstat_reply(char *replyp, struct sockaddr_in *raddrp) 89 { 90 struct tm *tmp_time; 91 struct tm host_time; 92 struct tm host_uptime; 93 char days_buf[16]; 94 char hours_buf[16]; 95 struct hostent *hp; 96 char *host; 97 statstime *host_stat = (statstime *)replyp; 98 99 if (search_host(raddrp->sin_addr)) 100 return(0); 101 102 hp = gethostbyaddr((char *)&raddrp->sin_addr.s_addr, 103 sizeof(struct in_addr), AF_INET); 104 if (hp) 105 host = hp->h_name; 106 else 107 host = inet_ntoa(raddrp->sin_addr); 108 109 /* truncate hostname to fit nicely into field */ 110 if (strlen(host) > HOST_WIDTH) 111 host[HOST_WIDTH] = '\0'; 112 113 printf("%-*s\t", HOST_WIDTH, host); 114 115 tmp_time = localtime((time_t *)&host_stat->curtime.tv_sec); 116 host_time = *tmp_time; 117 118 host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec; 119 120 tmp_time = gmtime((time_t *)&host_stat->curtime.tv_sec); 121 host_uptime = *tmp_time; 122 123 #define updays (host_stat->curtime.tv_sec / 86400) 124 if (host_uptime.tm_yday != 0) 125 snprintf(days_buf, sizeof days_buf, "%3d day%s, ", updays, 126 (updays > 1) ? "s" : ""); 127 else 128 days_buf[0] = '\0'; 129 130 if (host_uptime.tm_hour != 0) 131 snprintf(hours_buf, sizeof hours_buf, "%2d:%02d, ", 132 host_uptime.tm_hour, host_uptime.tm_min); 133 else if (host_uptime.tm_min != 0) 134 snprintf(hours_buf, sizeof hours_buf, "%2d mins, ", 135 host_uptime.tm_min); 136 else if (host_stat->curtime.tv_sec < 60) 137 snprintf(hours_buf, sizeof hours_buf, "%2d secs, ", 138 host_uptime.tm_sec); 139 else 140 hours_buf[0] = '\0'; 141 142 printf(" %2d:%02d%cm up %9.9s%9.9s load average: %.2f %.2f %.2f\n", 143 (host_time.tm_hour % 12) ? host_time.tm_hour % 12 : 12, 144 host_time.tm_min, 145 (host_time.tm_hour >= 12) ? 'p' : 'a', 146 days_buf, 147 hours_buf, 148 (double)host_stat->avenrun[0]/FSCALE, 149 (double)host_stat->avenrun[1]/FSCALE, 150 (double)host_stat->avenrun[2]/FSCALE); 151 152 remember_host(raddrp->sin_addr); 153 return(0); 154 } 155 156 static int 157 onehost(char *host) 158 { 159 CLIENT *rstat_clnt; 160 statstime host_stat; 161 struct sockaddr_in addr; 162 struct hostent *hp; 163 struct timeval tv; 164 165 hp = gethostbyname(host); 166 if (hp == NULL) { 167 herror("rup"); 168 return(-1); 169 } 170 171 rstat_clnt = clnt_create(host, RSTATPROG, RSTATVERS_TIME, "udp"); 172 if (rstat_clnt == NULL) { 173 clnt_pcreateerror(host); 174 return(-1); 175 } 176 177 bzero(&host_stat, sizeof(host_stat)); 178 tv.tv_sec = 15; /* XXX ??? */ 179 tv.tv_usec = 0; 180 if (clnt_call(rstat_clnt, RSTATPROC_STATS, xdr_void, NULL, xdr_statstime, &host_stat, tv) != RPC_SUCCESS) { 181 clnt_perror(rstat_clnt, host); 182 clnt_destroy(rstat_clnt); 183 return(-1); 184 } 185 186 addr.sin_addr.s_addr = *(int *)hp->h_addr; 187 rstat_reply((char *)&host_stat, &addr); 188 clnt_destroy(rstat_clnt); 189 return (0); 190 } 191 192 static void 193 allhosts(void) 194 { 195 statstime host_stat; 196 enum clnt_stat clnt_stat; 197 198 clnt_stat = clnt_broadcast(RSTATPROG, RSTATVERS_TIME, RSTATPROC_STATS, 199 xdr_void, NULL, 200 xdr_statstime, (char *)&host_stat, rstat_reply); 201 if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT) 202 errx(1, "%s", clnt_sperrno(clnt_stat)); 203 } 204 205 static void 206 usage(void) 207 { 208 fprintf(stderr, "usage: rup [hosts ...]\n"); 209 exit(1); 210 } 211 212 int 213 main(int argc, char *argv[]) 214 { 215 int ch; 216 217 while ((ch = getopt(argc, argv, "")) != -1) 218 switch (ch) { 219 default: 220 usage(); 221 /*NOTREACHED*/ 222 } 223 224 setlinebuf(stdout); 225 if (argc == optind) 226 allhosts(); 227 else { 228 for (; optind < argc; optind++) 229 (void) onehost(argv[optind]); 230 } 231 exit(0); 232 } 233