2 * Copyright (c) 1980, 1991, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
35 static const char copyright[] =
36 "@(#) Copyright (c) 1980, 1991, 1993, 1994\n\
37 The Regents of the University of California. All rights reserved.\n";
41 static const char sccsid[] = "@(#)w.c 8.4 (Berkeley) 4/16/94";
45 * w - print system status (who and what)
47 * This program is similar to the systat command on Tenex/Tops 10/20
50 #include <sys/param.h>
53 #include <sys/sysctl.h>
56 #include <sys/ioctl.h>
58 #include <sys/socket.h>
60 #include <sys/types.h>
62 #include <machine/cpu.h>
63 #include <netinet/in.h>
64 #include <arpa/inet.h>
65 #include <arpa/nameser.h>
92 static struct utmpx *utmp;
93 static struct winsize ws;
95 static time_t now; /* the current time of day */
96 static int ttywidth; /* width of tty */
97 static int argwidth; /* width of tty */
98 static int header = 1; /* true if -h flag: don't print heading */
99 static int nflag; /* true if -n flag: don't convert addrs */
100 static int dflag; /* true if -d flag: output debug info */
101 static int sortidle; /* sort by idle time */
102 int use_ampm; /* use AM/PM time */
103 static int use_comma; /* use comma as floats separator */
104 static char **sel_users; /* login array of particular users selected */
107 * One of these per active utmp entry.
109 static struct entry {
112 dev_t tdev; /* dev_t of terminal */
113 time_t idle; /* idle time of terminal in seconds */
114 struct kinfo_proc *kp; /* `most interesting' proc */
115 char *args; /* arg list of interesting process */
116 struct kinfo_proc *dkp; /* debug option proc list */
117 } *ep, *ehead = NULL, **nextp = &ehead;
119 #define debugproc(p) *(&((struct kinfo_proc *)p)->ki_udata)
121 #define W_DISPUSERSIZE 10
122 #define W_DISPLINESIZE 8
123 #define W_DISPHOSTSIZE 40
125 static void pr_header(time_t *, int);
126 static struct stat *ttystat(char *);
127 static void usage(int);
129 char *fmt_argv(char **, char *, char *, size_t); /* ../../bin/ps/fmt.c */
132 main(int argc, char *argv[])
134 struct kinfo_proc *kp;
135 struct kinfo_proc *dkp;
138 int ch, i, nentries, nusers, wcmd, longidle, longattime;
139 const char *memf, *nlistf, *p, *save_p;
141 char buf[MAXHOSTNAMELEN], errbuf[_POSIX2_LINE_MAX];
142 char fn[MAXHOSTNAMELEN];
145 (void)setlocale(LC_ALL, "");
146 use_ampm = (*nl_langinfo(T_FMT_AMPM) != '\0');
147 use_comma = (*nl_langinfo(RADIXCHAR) != ',');
149 argc = xo_parse_args(argc, argv);
153 /* Are we w(1) or uptime(1)? */
154 if (strcmp(basename(argv[0]), "uptime") == 0) {
162 memf = _PATH_DEVNULL;
164 while ((ch = getopt(argc, argv, p)) != -1)
185 case 'f': case 'l': case 's': case 'u': case 'w':
186 warnx("[-flsuw] no longer supported");
195 if (!(_res.options & RES_INIT))
197 _res.retrans = 2; /* resolver timeout to 2 seconds per try */
198 _res.retry = 1; /* only try once.. */
200 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf)) == NULL)
201 errx(1, "%s", errbuf);
209 for (nusers = 0; (utmp = getutxent()) != NULL;) {
210 if (utmp->ut_type != USER_PROCESS)
212 if (!(stp = ttystat(utmp->ut_line)))
213 continue; /* corrupted record */
222 for (user = sel_users; !usermatch && *user; user++)
223 if (!strcmp(utmp->ut_user, *user))
228 if ((ep = calloc(1, sizeof(struct entry))) == NULL)
232 memmove(&ep->utmp, utmp, sizeof *utmp);
233 ep->tdev = stp->st_rdev;
235 * If this is the console device, attempt to ascertain
236 * the true console device dev_t.
241 size = sizeof(dev_t);
242 (void)sysctlbyname("machdep.consdev", &ep->tdev, &size, NULL, 0);
244 touched = stp->st_atime;
245 if (touched < ep->utmp.ut_tv.tv_sec) {
246 /* tty untouched since before login */
247 touched = ep->utmp.ut_tv.tv_sec;
249 if ((ep->idle = now - touched) < 0)
254 xo_open_container("uptime-information");
256 if (header || wcmd == 0) {
257 pr_header(&now, nusers);
259 xo_close_container("uptime-information");
266 #define HEADER_USER "USER"
267 #define HEADER_TTY "TTY"
268 #define HEADER_FROM "FROM"
269 #define HEADER_LOGIN_IDLE "LOGIN@ IDLE "
270 #define HEADER_WHAT "WHAT\n"
271 #define WUSED (W_DISPUSERSIZE + W_DISPLINESIZE + W_DISPHOSTSIZE + \
272 sizeof(HEADER_LOGIN_IDLE) + 3) /* header width incl. spaces */
273 xo_emit("{T:/%-*.*s} {T:/%-*.*s} {T:/%-*.*s} {T:/%s}",
274 W_DISPUSERSIZE, W_DISPUSERSIZE, HEADER_USER,
275 W_DISPLINESIZE, W_DISPLINESIZE, HEADER_TTY,
276 W_DISPHOSTSIZE, W_DISPHOSTSIZE, HEADER_FROM,
277 HEADER_LOGIN_IDLE HEADER_WHAT);
280 if ((kp = kvm_getprocs(kd, KERN_PROC_ALL, 0, &nentries)) == NULL)
281 err(1, "%s", kvm_geterr(kd));
282 for (i = 0; i < nentries; i++, kp++) {
283 if (kp->ki_stat == SIDL || kp->ki_stat == SZOMB ||
284 kp->ki_tdev == NODEV)
286 for (ep = ehead; ep != NULL; ep = ep->next) {
287 if (ep->tdev == kp->ki_tdev) {
289 * proc is associated with this terminal
291 if (ep->kp == NULL && kp->ki_pgid == kp->ki_tpgid) {
293 * Proc is 'most interesting'
295 if (proc_compare(ep->kp, kp))
299 * Proc debug option info; add to debug
300 * list using kinfo_proc ki_spare[0]
301 * as next pointer; ptr to ptr avoids the
302 * ptr = long assumption.
310 if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) == -1 &&
311 ioctl(STDERR_FILENO, TIOCGWINSZ, &ws) == -1 &&
312 ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) == -1) || ws.ws_col == 0)
315 ttywidth = ws.ws_col - 1;
316 argwidth = ttywidth - WUSED;
319 for (ep = ehead; ep != NULL; ep = ep->next) {
320 if (ep->kp == NULL) {
321 ep->args = strdup("-");
324 ep->args = fmt_argv(kvm_getargv(kd, ep->kp, argwidth),
325 ep->kp->ki_comm, NULL, MAXCOMLEN);
326 if (ep->args == NULL)
329 /* sort by idle time */
330 if (sortidle && ehead != NULL) {
331 struct entry *from, *save;
335 while (from != NULL) {
337 (*nextp) && from->idle >= (*nextp)->idle;
338 nextp = &(*nextp)->next)
347 xo_open_container("user-table");
348 xo_open_list("user-entry");
350 for (ep = ehead; ep != NULL; ep = ep->next) {
351 struct addrinfo hints, *res;
352 struct sockaddr_storage ss;
353 struct sockaddr *sa = (struct sockaddr *)&ss;
354 struct sockaddr_in *lsin = (struct sockaddr_in *)&ss;
355 struct sockaddr_in6 *lsin6 = (struct sockaddr_in6 *)&ss;
359 xo_open_instance("user-entry");
361 save_p = p = *ep->utmp.ut_host ? ep->utmp.ut_host : "-";
362 if ((x_suffix = strrchr(p, ':')) != NULL) {
363 if ((dot = strchr(x_suffix, '.')) != NULL &&
364 strchr(dot+1, '.') == NULL)
371 memset(&ss, '\0', sizeof(ss));
372 if (inet_pton(AF_INET6, p, &lsin6->sin6_addr) == 1) {
373 lsin6->sin6_len = sizeof(*lsin6);
374 lsin6->sin6_family = AF_INET6;
376 } else if (inet_pton(AF_INET, p, &lsin->sin_addr) == 1) {
377 lsin->sin_len = sizeof(*lsin);
378 lsin->sin_family = AF_INET;
382 /* Attempt to change an IP address into a name */
383 if (isaddr && realhostname_sa(fn, sizeof(fn), sa,
384 sa->sa_len) == HOSTNAME_FOUND)
386 } else if (!isaddr && nflag > 1) {
388 * If a host has only one A/AAAA RR, change a
389 * name into an IP address
391 memset(&hints, 0, sizeof(hints));
392 hints.ai_flags = AI_PASSIVE;
393 hints.ai_family = AF_UNSPEC;
394 hints.ai_socktype = SOCK_STREAM;
395 if (getaddrinfo(p, NULL, &hints, &res) == 0) {
396 if (res->ai_next == NULL &&
397 getnameinfo(res->ai_addr, res->ai_addrlen,
398 fn, sizeof(fn), NULL, 0,
399 NI_NUMERICHOST) == 0)
406 (void)snprintf(buf, sizeof(buf), "%s:%s", p, x_suffix);
410 xo_open_container("process-table");
411 xo_open_list("process-entry");
413 for (dkp = ep->dkp; dkp != NULL; dkp = debugproc(dkp)) {
416 ptr = fmt_argv(kvm_getargv(kd, dkp, argwidth),
417 dkp->ki_comm, NULL, MAXCOMLEN);
420 xo_open_instance("process-entry");
421 xo_emit("\t\t{:process-id/%-9d/%d} {:command/%s}\n",
423 xo_close_instance("process-entry");
425 xo_close_list("process-entry");
426 xo_close_container("process-table");
428 xo_emit("{:user/%-*.*s/%@**@s} {:tty/%-*.*s/%@**@s} ",
429 W_DISPUSERSIZE, W_DISPUSERSIZE, ep->utmp.ut_user,
430 W_DISPLINESIZE, W_DISPLINESIZE,
432 (strncmp(ep->utmp.ut_line, "tty", 3) &&
433 strncmp(ep->utmp.ut_line, "cua", 3) ?
434 ep->utmp.ut_line : ep->utmp.ut_line + 3) : "-");
436 if (save_p && save_p != p)
437 xo_attr("address", "%s", save_p);
438 xo_emit("{:from/%-*.*s/%@**@s} ",
439 W_DISPHOSTSIZE, W_DISPHOSTSIZE, *p ? p : "-");
440 t = ep->utmp.ut_tv.tv_sec;
441 longattime = pr_attime(&t, &now);
442 longidle = pr_idle(ep->idle);
443 xo_emit("{:command/%.*s/%@*@s}\n",
444 argwidth - longidle - longattime,
447 xo_close_instance("user-entry");
450 xo_close_list("user-entry");
451 xo_close_container("user-table");
452 xo_close_container("uptime-information");
460 pr_header(time_t *nowp, int nusers)
465 int days, hrs, i, mins, secs;
469 upbuf = sbuf_new_auto();
473 if (strftime(buf, sizeof(buf),
474 use_ampm ? "%l:%M%p" : "%k:%M", localtime(nowp)) != 0)
475 xo_emit("{:time-of-day/%s} ", buf);
477 * Print how long system has been up.
479 if (clock_gettime(CLOCK_UPTIME, &tp) != -1) {
483 days = uptime / 86400;
490 xo_emit("{e:uptime/%lu}", (unsigned long) tp.tv_sec);
491 xo_emit("{e:days/%d}{e:hours/%d}{e:minutes/%d}{e:seconds/%d}", days, hrs, mins, secs);
494 sbuf_printf(upbuf, " %d day%s,",
495 days, days > 1 ? "s" : "");
496 if (hrs > 0 && mins > 0)
497 sbuf_printf(upbuf, " %2d:%02d,", hrs, mins);
499 sbuf_printf(upbuf, " %d hr%s,",
500 hrs, hrs > 1 ? "s" : "");
502 sbuf_printf(upbuf, " %d min%s,",
503 mins, mins > 1 ? "s" : "");
505 sbuf_printf(upbuf, " %d sec%s,",
506 secs, secs > 1 ? "s" : "");
507 if (sbuf_finish(upbuf) != 0)
508 xo_err(1, "Could not generate output");
509 xo_emit("{:uptime-human/%s}", sbuf_data(upbuf));
513 /* Print number of users logged in to system */
514 xo_emit(" {:users/%d} {N:user%s}", nusers, nusers == 1 ? "" : "s");
517 * Print 1, 5, and 15 minute load averages.
519 if (getloadavg(avenrun, nitems(avenrun)) == -1)
520 xo_emit(", no load average information available\n");
522 static const char *format[] = {
523 " {:load-average-1/%.2f}",
524 " {:load-average-5/%.2f}",
525 " {:load-average-15/%.2f}",
527 xo_emit(", load averages:");
528 for (i = 0; i < (int)(nitems(avenrun)); i++) {
529 if (use_comma && i > 0)
531 xo_emit(format[i], avenrun[i]);
540 static struct stat sb;
541 char ttybuf[MAXPATHLEN];
543 (void)snprintf(ttybuf, sizeof(ttybuf), "%s%s", _PATH_DEV, line);
544 if (stat(ttybuf, &sb) == 0 && S_ISCHR(sb.st_mode)) {
554 xo_error("usage: w [-dhin] [-M core] [-N system] [user ...]\n");
556 xo_error("usage: uptime\n");