19b50d902SRodney W. Grimes /* 29b50d902SRodney W. Grimes * Copyright (c) 1983, 1993, 1994 39b50d902SRodney W. Grimes * The Regents of the University of California. All rights reserved. 49b50d902SRodney W. Grimes * 59b50d902SRodney W. Grimes * Redistribution and use in source and binary forms, with or without 69b50d902SRodney W. Grimes * modification, are permitted provided that the following conditions 79b50d902SRodney W. Grimes * are met: 89b50d902SRodney W. Grimes * 1. Redistributions of source code must retain the above copyright 99b50d902SRodney W. Grimes * notice, this list of conditions and the following disclaimer. 109b50d902SRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright 119b50d902SRodney W. Grimes * notice, this list of conditions and the following disclaimer in the 129b50d902SRodney W. Grimes * documentation and/or other materials provided with the distribution. 139b50d902SRodney W. Grimes * 4. Neither the name of the University nor the names of its contributors 149b50d902SRodney W. Grimes * may be used to endorse or promote products derived from this software 159b50d902SRodney W. Grimes * without specific prior written permission. 169b50d902SRodney W. Grimes * 179b50d902SRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 189b50d902SRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 199b50d902SRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 209b50d902SRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 219b50d902SRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 229b50d902SRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 239b50d902SRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 249b50d902SRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 259b50d902SRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 269b50d902SRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 279b50d902SRodney W. Grimes * SUCH DAMAGE. 289b50d902SRodney W. Grimes */ 299b50d902SRodney W. Grimes 309b50d902SRodney W. Grimes #ifndef lint 31e88b3b4fSPhilippe Charnier static const char copyright[] = 329b50d902SRodney W. Grimes "@(#) Copyright (c) 1983, 1993, 1994\n\ 339b50d902SRodney W. Grimes The Regents of the University of California. All rights reserved.\n"; 349b50d902SRodney W. Grimes #endif /* not lint */ 359b50d902SRodney W. Grimes 369b50d902SRodney W. Grimes #ifndef lint 37a827060aSMark Murray static const char sccsid[] = "@(#)ruptime.c 8.2 (Berkeley) 4/5/94"; 389b50d902SRodney W. Grimes #endif /* not lint */ 399b50d902SRodney W. Grimes 40a827060aSMark Murray #include <sys/cdefs.h> 41a827060aSMark Murray __FBSDID("$FreeBSD$"); 42a827060aSMark Murray 439b50d902SRodney W. Grimes #include <sys/param.h> 449b50d902SRodney W. Grimes 459b50d902SRodney W. Grimes #include <protocols/rwhod.h> 469b50d902SRodney W. Grimes 479b50d902SRodney W. Grimes #include <dirent.h> 489b50d902SRodney W. Grimes #include <err.h> 49821df508SXin LI #include <errno.h> 509b50d902SRodney W. Grimes #include <fcntl.h> 519b50d902SRodney W. Grimes #include <stdio.h> 529b50d902SRodney W. Grimes #include <stdlib.h> 539b50d902SRodney W. Grimes #include <string.h> 549b50d902SRodney W. Grimes #include <time.h> 559b50d902SRodney W. Grimes #include <unistd.h> 569b50d902SRodney W. Grimes 579b50d902SRodney W. Grimes struct hs { 5873b018e3SEd Schouten struct whod hs_wd; 599b50d902SRodney W. Grimes int hs_nusers; 609b50d902SRodney W. Grimes } *hs; 6102dfd2b2SSuleiman Souhlal #define LEFTEARTH(h) (now - (h) > 4*24*60*60) 6273b018e3SEd Schouten #define ISDOWN(h) (now - (h)->hs_wd.wd_recvtime > 11 * 60) 6373b018e3SEd Schouten #define WHDRSIZE __offsetof(struct whod, wd_we) 649b50d902SRodney W. Grimes 659b50d902SRodney W. Grimes size_t nhosts; 669b50d902SRodney W. Grimes time_t now; 679b50d902SRodney W. Grimes int rflg = 1; 68e7cb5ef7SJuli Mallett DIR *dirp; 699b50d902SRodney W. Grimes 70d3cb5dedSWarner Losh int hscmp(const void *, const void *); 71a827060aSMark Murray char *interval(time_t, const char *); 72d3cb5dedSWarner Losh int lcmp(const void *, const void *); 73d3cb5dedSWarner Losh void morehosts(void); 74e7cb5ef7SJuli Mallett void ruptime(const char *, int, int (*)(const void *, const void *)); 75d3cb5dedSWarner Losh int tcmp(const void *, const void *); 76d3cb5dedSWarner Losh int ucmp(const void *, const void *); 77d3cb5dedSWarner Losh void usage(void); 789b50d902SRodney W. Grimes 799b50d902SRodney W. Grimes int 80a827060aSMark Murray main(int argc, char *argv[]) 819b50d902SRodney W. Grimes { 82d3cb5dedSWarner Losh int (*cmp)(const void *, const void *); 83e7cb5ef7SJuli Mallett int aflg, ch; 849b50d902SRodney W. Grimes 859b50d902SRodney W. Grimes aflg = 0; 869b50d902SRodney W. Grimes cmp = hscmp; 871c8af878SWarner Losh while ((ch = getopt(argc, argv, "alrut")) != -1) 889b50d902SRodney W. Grimes switch (ch) { 899b50d902SRodney W. Grimes case 'a': 909b50d902SRodney W. Grimes aflg = 1; 919b50d902SRodney W. Grimes break; 929b50d902SRodney W. Grimes case 'l': 939b50d902SRodney W. Grimes cmp = lcmp; 949b50d902SRodney W. Grimes break; 959b50d902SRodney W. Grimes case 'r': 969b50d902SRodney W. Grimes rflg = -1; 979b50d902SRodney W. Grimes break; 989b50d902SRodney W. Grimes case 't': 999b50d902SRodney W. Grimes cmp = tcmp; 1009b50d902SRodney W. Grimes break; 1019b50d902SRodney W. Grimes case 'u': 1029b50d902SRodney W. Grimes cmp = ucmp; 1039b50d902SRodney W. Grimes break; 1049b50d902SRodney W. Grimes default: 1059b50d902SRodney W. Grimes usage(); 1069b50d902SRodney W. Grimes } 1079b50d902SRodney W. Grimes argc -= optind; 1089b50d902SRodney W. Grimes argv += optind; 1099b50d902SRodney W. Grimes 1109b50d902SRodney W. Grimes if (chdir(_PATH_RWHODIR) || (dirp = opendir(".")) == NULL) 1119b50d902SRodney W. Grimes err(1, "%s", _PATH_RWHODIR); 1129b50d902SRodney W. Grimes 113e7cb5ef7SJuli Mallett ruptime(*argv, aflg, cmp); 114e7cb5ef7SJuli Mallett while (*argv++ != NULL) { 115e7cb5ef7SJuli Mallett if (*argv == NULL) 116e7cb5ef7SJuli Mallett break; 117e7cb5ef7SJuli Mallett ruptime(*argv, aflg, cmp); 1189b50d902SRodney W. Grimes } 1199b50d902SRodney W. Grimes exit(0); 1209b50d902SRodney W. Grimes } 1219b50d902SRodney W. Grimes 1229b50d902SRodney W. Grimes char * 123a827060aSMark Murray interval(time_t tval, const char *updown) 1249b50d902SRodney W. Grimes { 1259b50d902SRodney W. Grimes static char resbuf[32]; 1269b50d902SRodney W. Grimes int days, hours, minutes; 1279b50d902SRodney W. Grimes 128fdb7c7dcSJoerg Wunsch if (tval < 0) { 1299b50d902SRodney W. Grimes (void)snprintf(resbuf, sizeof(resbuf), "%s ??:??", updown); 1309b50d902SRodney W. Grimes return (resbuf); 1319b50d902SRodney W. Grimes } 13273b018e3SEd Schouten /* Round to minutes. */ 133656dcd43SGarrett Wollman minutes = (tval + (60 - 1)) / 60; 134656dcd43SGarrett Wollman hours = minutes / 60; 135656dcd43SGarrett Wollman minutes %= 60; 136656dcd43SGarrett Wollman days = hours / 24; 137656dcd43SGarrett Wollman hours %= 24; 1389b50d902SRodney W. Grimes if (days) 1399b50d902SRodney W. Grimes (void)snprintf(resbuf, sizeof(resbuf), 14073b018e3SEd Schouten "%s %4d+%02d:%02d", updown, days, hours, minutes); 1419b50d902SRodney W. Grimes else 1429b50d902SRodney W. Grimes (void)snprintf(resbuf, sizeof(resbuf), 1439b50d902SRodney W. Grimes "%s %2d:%02d", updown, hours, minutes); 1449b50d902SRodney W. Grimes return (resbuf); 1459b50d902SRodney W. Grimes } 1469b50d902SRodney W. Grimes 147a827060aSMark Murray #define HS(a) ((const struct hs *)(a)) 1489b50d902SRodney W. Grimes 1499b50d902SRodney W. Grimes /* Alphabetical comparison. */ 1509b50d902SRodney W. Grimes int 151a827060aSMark Murray hscmp(const void *a1, const void *a2) 1529b50d902SRodney W. Grimes { 1539b50d902SRodney W. Grimes return (rflg * 15473b018e3SEd Schouten strcmp(HS(a1)->hs_wd.wd_hostname, HS(a2)->hs_wd.wd_hostname)); 1559b50d902SRodney W. Grimes } 1569b50d902SRodney W. Grimes 1579b50d902SRodney W. Grimes /* Load average comparison. */ 1589b50d902SRodney W. Grimes int 159a827060aSMark Murray lcmp(const void *a1, const void *a2) 1609b50d902SRodney W. Grimes { 1619b50d902SRodney W. Grimes if (ISDOWN(HS(a1))) 1629b50d902SRodney W. Grimes if (ISDOWN(HS(a2))) 1639b50d902SRodney W. Grimes return (tcmp(a1, a2)); 1649b50d902SRodney W. Grimes else 1659b50d902SRodney W. Grimes return (rflg); 1669b50d902SRodney W. Grimes else if (ISDOWN(HS(a2))) 1679b50d902SRodney W. Grimes return (-rflg); 1689b50d902SRodney W. Grimes else 1699b50d902SRodney W. Grimes return (rflg * 17073b018e3SEd Schouten (HS(a2)->hs_wd.wd_loadav[0] - HS(a1)->hs_wd.wd_loadav[0])); 1719b50d902SRodney W. Grimes } 1729b50d902SRodney W. Grimes 173e7cb5ef7SJuli Mallett void 174e7cb5ef7SJuli Mallett ruptime(const char *host, int aflg, int (*cmp)(const void *, const void *)) 175e7cb5ef7SJuli Mallett { 176e7cb5ef7SJuli Mallett struct hs *hsp; 177e7cb5ef7SJuli Mallett struct whod *wd; 178e7cb5ef7SJuli Mallett struct whoent *we; 179e7cb5ef7SJuli Mallett struct dirent *dp; 180e7cb5ef7SJuli Mallett const char *hostname; 181e7cb5ef7SJuli Mallett int fd, i, maxloadav; 182e7cb5ef7SJuli Mallett size_t hspace; 18373b018e3SEd Schouten ssize_t cc; 184e7cb5ef7SJuli Mallett 185e7cb5ef7SJuli Mallett rewinddir(dirp); 186e7cb5ef7SJuli Mallett hsp = NULL; 187e7cb5ef7SJuli Mallett maxloadav = -1; 188887019fbSAntoine Brodin (void)time(&now); 189e7cb5ef7SJuli Mallett for (nhosts = hspace = 0; (dp = readdir(dirp)) != NULL;) { 190e7cb5ef7SJuli Mallett if (dp->d_ino == 0 || strncmp(dp->d_name, "whod.", 5) != 0) 191e7cb5ef7SJuli Mallett continue; 192e7cb5ef7SJuli Mallett if ((fd = open(dp->d_name, O_RDONLY, 0)) < 0) { 193e7cb5ef7SJuli Mallett warn("%s", dp->d_name); 194e7cb5ef7SJuli Mallett continue; 195e7cb5ef7SJuli Mallett } 196e7cb5ef7SJuli Mallett 197e7cb5ef7SJuli Mallett if (nhosts == hspace) { 198e7cb5ef7SJuli Mallett if ((hs = 199e7cb5ef7SJuli Mallett realloc(hs, (hspace += 40) * sizeof(*hs))) == NULL) 200e7cb5ef7SJuli Mallett err(1, NULL); 201e7cb5ef7SJuli Mallett hsp = hs + nhosts; 202e7cb5ef7SJuli Mallett } 203e7cb5ef7SJuli Mallett 20473b018e3SEd Schouten wd = &hsp->hs_wd; 20573b018e3SEd Schouten cc = read(fd, wd, sizeof(*wd)); 20673b018e3SEd Schouten (void)close(fd); 20773b018e3SEd Schouten if (cc < (ssize_t)WHDRSIZE) 20873b018e3SEd Schouten continue; 209e7cb5ef7SJuli Mallett 21073b018e3SEd Schouten if (host != NULL) { 21173b018e3SEd Schouten hostname = wd->wd_hostname; 21273b018e3SEd Schouten if (strcasecmp(hostname, host) != 0) 21373b018e3SEd Schouten continue; 21473b018e3SEd Schouten } 21573b018e3SEd Schouten if (LEFTEARTH(wd->wd_recvtime)) 21673b018e3SEd Schouten continue; 21773b018e3SEd Schouten 21873b018e3SEd Schouten for (i = 0; i < 2; i++) 219e7cb5ef7SJuli Mallett if (wd->wd_loadav[i] > maxloadav) 220e7cb5ef7SJuli Mallett maxloadav = wd->wd_loadav[i]; 221e7cb5ef7SJuli Mallett 22273b018e3SEd Schouten for (hsp->hs_nusers = 0, we = &wd->wd_we[0]; 22373b018e3SEd Schouten (char *)(we + 1) <= (char *)wd + cc; we++) 224e7cb5ef7SJuli Mallett if (aflg || we->we_idle < 3600) 225e7cb5ef7SJuli Mallett ++hsp->hs_nusers; 226e7cb5ef7SJuli Mallett ++hsp; 227e7cb5ef7SJuli Mallett ++nhosts; 228e7cb5ef7SJuli Mallett } 229e7cb5ef7SJuli Mallett if (nhosts == 0) { 230e7cb5ef7SJuli Mallett if (host == NULL) 231e7cb5ef7SJuli Mallett errx(1, "no hosts in %s", _PATH_RWHODIR); 232e7cb5ef7SJuli Mallett else 233e7cb5ef7SJuli Mallett warnx("host %s not in %s", host, _PATH_RWHODIR); 234e7cb5ef7SJuli Mallett } 235e7cb5ef7SJuli Mallett 236e7cb5ef7SJuli Mallett qsort(hs, nhosts, sizeof(hs[0]), cmp); 237e7cb5ef7SJuli Mallett for (i = 0; i < (int)nhosts; i++) { 238e7cb5ef7SJuli Mallett hsp = &hs[i]; 23973b018e3SEd Schouten wd = &hsp->hs_wd; 240e7cb5ef7SJuli Mallett if (ISDOWN(hsp)) { 24173b018e3SEd Schouten (void)printf("%-25.25s%s\n", wd->wd_hostname, 24273b018e3SEd Schouten interval(now - hsp->hs_wd.wd_recvtime, "down")); 243e7cb5ef7SJuli Mallett continue; 244e7cb5ef7SJuli Mallett } 245e7cb5ef7SJuli Mallett (void)printf( 246e5bc6d56SDavid E. O'Brien "%-25.25s%s, %4d user%s load %*.2f, %*.2f, %*.2f\n", 24773b018e3SEd Schouten wd->wd_hostname, 24873b018e3SEd Schouten interval((time_t)wd->wd_sendtime - 24973b018e3SEd Schouten (time_t)wd->wd_boottime, " up"), 250e7cb5ef7SJuli Mallett hsp->hs_nusers, 251e7cb5ef7SJuli Mallett hsp->hs_nusers == 1 ? ", " : "s,", 252e7cb5ef7SJuli Mallett maxloadav >= 1000 ? 5 : 4, 25373b018e3SEd Schouten wd->wd_loadav[0] / 100.0, 254e7cb5ef7SJuli Mallett maxloadav >= 1000 ? 5 : 4, 25573b018e3SEd Schouten wd->wd_loadav[1] / 100.0, 256e7cb5ef7SJuli Mallett maxloadav >= 1000 ? 5 : 4, 25773b018e3SEd Schouten wd->wd_loadav[2] / 100.0); 258e7cb5ef7SJuli Mallett } 259e7cb5ef7SJuli Mallett free(hs); 260e7cb5ef7SJuli Mallett hs = NULL; 261e7cb5ef7SJuli Mallett } 262e7cb5ef7SJuli Mallett 2639b50d902SRodney W. Grimes /* Number of users comparison. */ 2649b50d902SRodney W. Grimes int 265a827060aSMark Murray ucmp(const void *a1, const void *a2) 2669b50d902SRodney W. Grimes { 2679b50d902SRodney W. Grimes if (ISDOWN(HS(a1))) 2689b50d902SRodney W. Grimes if (ISDOWN(HS(a2))) 2699b50d902SRodney W. Grimes return (tcmp(a1, a2)); 2709b50d902SRodney W. Grimes else 2719b50d902SRodney W. Grimes return (rflg); 2729b50d902SRodney W. Grimes else if (ISDOWN(HS(a2))) 2739b50d902SRodney W. Grimes return (-rflg); 2749b50d902SRodney W. Grimes else 2759b50d902SRodney W. Grimes return (rflg * (HS(a2)->hs_nusers - HS(a1)->hs_nusers)); 2769b50d902SRodney W. Grimes } 2779b50d902SRodney W. Grimes 2789b50d902SRodney W. Grimes /* Uptime comparison. */ 2799b50d902SRodney W. Grimes int 280a827060aSMark Murray tcmp(const void *a1, const void *a2) 2819b50d902SRodney W. Grimes { 2829b50d902SRodney W. Grimes return (rflg * ( 28373b018e3SEd Schouten (ISDOWN(HS(a2)) ? HS(a2)->hs_wd.wd_recvtime - now 28473b018e3SEd Schouten : HS(a2)->hs_wd.wd_sendtime - HS(a2)->hs_wd.wd_boottime) 2859b50d902SRodney W. Grimes - 28673b018e3SEd Schouten (ISDOWN(HS(a1)) ? HS(a1)->hs_wd.wd_recvtime - now 28773b018e3SEd Schouten : HS(a1)->hs_wd.wd_sendtime - HS(a1)->hs_wd.wd_boottime) 2889b50d902SRodney W. Grimes )); 2899b50d902SRodney W. Grimes } 2909b50d902SRodney W. Grimes 2919b50d902SRodney W. Grimes void 292a827060aSMark Murray usage(void) 2939b50d902SRodney W. Grimes { 294f682f10cSRuslan Ermilov (void)fprintf(stderr, "usage: ruptime [-alrtu] [host ...]\n"); 2959b50d902SRodney W. Grimes exit(1); 2969b50d902SRodney W. Grimes } 297