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 int 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; 104 105 if (search_host(raddrp->sin_addr)) 106 return(0); 107 108 hp = gethostbyaddr((char *)&raddrp->sin_addr.s_addr, 109 sizeof(struct in_addr), AF_INET); 110 if (hp) 111 host = hp->h_name; 112 else 113 host = inet_ntoa(raddrp->sin_addr); 114 115 /* truncate hostname to fit nicely into field */ 116 if (strlen(host) > HOST_WIDTH) 117 host[HOST_WIDTH] = '\0'; 118 119 printf("%-*s\t", HOST_WIDTH, host); 120 121 tmp_time = localtime((time_t *)&host_stat->curtime.tv_sec); 122 host_time = *tmp_time; 123 124 host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec; 125 126 tmp_time = gmtime((time_t *)&host_stat->curtime.tv_sec); 127 host_uptime = *tmp_time; 128 129 #define updays (host_stat->curtime.tv_sec / 86400) 130 if (host_uptime.tm_yday != 0) 131 sprintf(days_buf, "%3d day%s, ", updays, 132 (updays > 1) ? "s" : ""); 133 else 134 days_buf[0] = '\0'; 135 136 if (host_uptime.tm_hour != 0) 137 sprintf(hours_buf, "%2d:%02d, ", 138 host_uptime.tm_hour, host_uptime.tm_min); 139 else 140 if (host_uptime.tm_min != 0) 141 sprintf(hours_buf, "%2d mins, ", host_uptime.tm_min); 142 else if (host_stat->curtime.tv_sec < 60) 143 sprintf(hours_buf, "%2d secs, ", host_uptime.tm_sec); 144 else 145 hours_buf[0] = '\0'; 146 147 printf(" %2d:%02d%cm up %9.9s%9.9s load average: %.2f %.2f %.2f\n", 148 (host_time.tm_hour % 12) ? host_time.tm_hour % 12 : 12, 149 host_time.tm_min, 150 (host_time.tm_hour >= 12) ? 'p' : 'a', 151 days_buf, 152 hours_buf, 153 (double)host_stat->avenrun[0]/FSCALE, 154 (double)host_stat->avenrun[1]/FSCALE, 155 (double)host_stat->avenrun[2]/FSCALE); 156 157 remember_host(raddrp->sin_addr); 158 return(0); 159 } 160 161 static int 162 onehost(char *host) 163 { 164 CLIENT *rstat_clnt; 165 statstime host_stat; 166 struct sockaddr_in addr; 167 struct hostent *hp; 168 struct timeval tv; 169 170 hp = gethostbyname(host); 171 if (hp == NULL) { 172 warnx("unknown host \"%s\"", host); 173 return(-1); 174 } 175 176 rstat_clnt = clnt_create(host, RSTATPROG, RSTATVERS_TIME, "udp"); 177 if (rstat_clnt == NULL) { 178 warnx("%s %s", host, clnt_spcreateerror("")); 179 return(-1); 180 } 181 182 bzero((char *)&host_stat, sizeof(host_stat)); 183 tv.tv_sec = 15; /* XXX ??? */ 184 tv.tv_usec = 0; 185 if (clnt_call(rstat_clnt, RSTATPROC_STATS, xdr_void, NULL, xdr_statstime, &host_stat, tv) != RPC_SUCCESS) { 186 warnx("%s: %s", host, clnt_sperror(rstat_clnt, host)); 187 clnt_destroy(rstat_clnt); 188 return(-1); 189 } 190 191 addr.sin_addr.s_addr = *(int *)hp->h_addr; 192 rstat_reply((caddr_t)&host_stat, &addr); 193 clnt_destroy(rstat_clnt); 194 return (0); 195 } 196 197 static void 198 allhosts(void) 199 { 200 statstime host_stat; 201 enum clnt_stat clnt_stat; 202 203 clnt_stat = clnt_broadcast(RSTATPROG, RSTATVERS_TIME, RSTATPROC_STATS, 204 xdr_void, NULL, 205 xdr_statstime, &host_stat, rstat_reply); 206 if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT) 207 errx(1, "%s", clnt_sperrno(clnt_stat)); 208 } 209 210 static void 211 usage(void) 212 { 213 fprintf(stderr, "usage: rup [hosts ...]\n"); 214 exit(1); 215 } 216 217 int 218 main(int argc, char *argv[]) 219 { 220 int ch; 221 222 while ((ch = getopt(argc, argv, "?")) != -1) 223 switch (ch) { 224 default: 225 usage(); 226 /*NOTREACHED*/ 227 } 228 229 setlinebuf(stdout); 230 if (argc == optind) 231 allhosts(); 232 else { 233 for (; optind < argc; optind++) 234 (void) onehost(argv[optind]); 235 } 236 exit(0); 237 } 238