| 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 1.5 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 int |
| 89 | rstat_reply(char *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 | |
| 100 | if (search_host(raddrp->sin_addr)) |
| 101 | return(0); |
| 102 | |
| 103 | hp = gethostbyaddr(&raddrp->sin_addr.s_addr, sizeof(struct in_addr), |
| 104 | AF_INET); |
| 105 | if (hp) |
| 106 | host = hp->h_name; |
| 107 | else |
| 108 | host = inet_ntoa(raddrp->sin_addr); |
| 109 | |
| 110 | /* truncate hostname to fit nicely into field */ |
| 111 | if (strlen(host) > HOST_WIDTH) |
| 112 | host[HOST_WIDTH] = '\0'; |
| 113 | |
| 114 | printf("%-*s\t", HOST_WIDTH, host); |
| 115 | |
| 116 | tmp_time = localtime((time_t *)&host_stat->curtime.tv_sec); |
| 117 | host_time = *tmp_time; |
| 118 | |
| 119 | host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec; |
| 120 | |
| 121 | tmp_time = gmtime((time_t *)&host_stat->curtime.tv_sec); |
| 122 | host_uptime = *tmp_time; |
| 123 | |
| 124 | #define updays (host_stat->curtime.tv_sec / 86400) |
| 125 | if (host_uptime.tm_yday != 0) |
| 126 | snprintf(days_buf, sizeof days_buf, "%3d day%s, ", updays, |
| 127 | (updays > 1) ? "s" : ""); |
| 128 | else |
| 129 | days_buf[0] = '\0'; |
| 130 | |
| 131 | if (host_uptime.tm_hour != 0) |
| 132 | snprintf(hours_buf, sizeof hours_buf, "%2d:%02d, ", |
| 133 | host_uptime.tm_hour, host_uptime.tm_min); |
| 134 | else if (host_uptime.tm_min != 0) |
| 135 | snprintf(hours_buf, sizeof hours_buf, "%2d mins, ", |
| 136 | host_uptime.tm_min); |
| 137 | else if (host_stat->curtime.tv_sec < 60) |
| 138 | snprintf(hours_buf, sizeof hours_buf, "%2d secs, ", |
| 139 | host_uptime.tm_sec); |
| 140 | else |
| 141 | hours_buf[0] = '\0'; |
| 142 | |
| 143 | printf(" %2d:%02d%cm up %9.9s%9.9s load average: %.2f %.2f %.2f\n", |
| 144 | (host_time.tm_hour % 12) ? host_time.tm_hour % 12 : 12, |
| 145 | host_time.tm_min, |
| 146 | (host_time.tm_hour >= 12) ? 'p' : 'a', |
| 147 | days_buf, |
| 148 | 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 | static int |
| 158 | onehost(const char *host) |
| 159 | { |
| 160 | CLIENT *rstat_clnt; |
| 161 | statstime host_stat; |
| 162 | struct sockaddr_in addr; |
| 163 | struct hostent *hp; |
| 164 | struct timeval tv; |
| 165 | |
| 166 | hp = gethostbyname(host); |
| 167 | if (hp == NULL) { |
| 168 | herror("rup"); |
| 169 | return(1); |
| 170 | } |
| 171 | |
| 172 | rstat_clnt = clnt_create(host, RSTATPROG, RSTATVERS_TIME, "udp"); |
| 173 | if (rstat_clnt == NULL) { |
| 174 | clnt_pcreateerror(host); |
| 175 | return(1); |
| 176 | } |
| 177 | |
| 178 | bzero(&host_stat, sizeof(host_stat)); |
| 179 | tv.tv_sec = 15; /* XXX ??? */ |
| 180 | tv.tv_usec = 0; |
| 181 | if (clnt_call(rstat_clnt, RSTATPROC_STATS, xdr_void, NULL, (xdrproc_t)xdr_statstime, &host_stat, tv) != RPC_SUCCESS) { |
| 182 | clnt_perror(rstat_clnt, host); |
| 183 | clnt_destroy(rstat_clnt); |
| 184 | return(1); |
| 185 | } |
| 186 | |
| 187 | addr.sin_addr.s_addr = *(int *)hp->h_addr; |
| 188 | rstat_reply((char *)&host_stat, &addr); |
| 189 | clnt_destroy(rstat_clnt); |
| 190 | return (0); |
| 191 | } |
| 192 | |
| 193 | static void |
| 194 | allhosts(void) |
| 195 | { |
| 196 | statstime host_stat; |
| 197 | enum clnt_stat clnt_stat; |
| 198 | |
| 199 | clnt_stat = clnt_broadcast(RSTATPROG, RSTATVERS_TIME, RSTATPROC_STATS, |
| 200 | xdr_void, NULL, |
| 201 | (xdrproc_t)xdr_statstime, (char *)&host_stat, rstat_reply); |
| 202 | if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT) |
| 203 | errx(1, "%s", clnt_sperrno(clnt_stat)); |
| 204 | } |
| 205 | |
| 206 | static void |
| 207 | usage(void) |
| 208 | { |
| 209 | fprintf(stderr, "usage: rup [hosts ...]\n"); |
| 210 | exit(1); |
| 211 | } |
| 212 | |
| 213 | int |
| 214 | main(int argc, char *argv[]) |
| 215 | { |
| 216 | int ch, retval; |
| 217 | |
| 218 | retval = 0; |
| 219 | while ((ch = getopt(argc, argv, "")) != -1) |
| 220 | switch (ch) { |
| 221 | default: |
| 222 | usage(); |
| 223 | /*NOTREACHED*/ |
| 224 | } |
| 225 | |
| 226 | setlinebuf(stdout); |
| 227 | if (argc == optind) |
| 228 | allhosts(); |
| 229 | else { |
| 230 | for (; optind < argc; optind++) |
| 231 | retval += onehost(argv[optind]); |
| 232 | } |
| 233 | exit(retval ? 1 : 0); |
| 234 | } |