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 * 4. 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>
57 #include <sys/socket.h>
60 #include <machine/cpu.h>
61 #include <netinet/in.h>
62 #include <arpa/inet.h>
63 #include <arpa/nameser.h>
88 static struct utmpx *utmp;
89 static struct winsize ws;
91 static time_t now; /* the current time of day */
92 static int ttywidth; /* width of tty */
93 static int argwidth; /* width of tty */
94 static int header = 1; /* true if -h flag: don't print heading */
95 static int nflag; /* true if -n flag: don't convert addrs */
96 static int dflag; /* true if -d flag: output debug info */
97 static int sortidle; /* sort by idle time */
98 int use_ampm; /* use AM/PM time */
99 static int use_comma; /* use comma as floats separator */
100 static char **sel_users; /* login array of particular users selected */
103 * One of these per active utmp entry.
105 static struct entry {
108 dev_t tdev; /* dev_t of terminal */
109 time_t idle; /* idle time of terminal in seconds */
110 struct kinfo_proc *kp; /* `most interesting' proc */
111 char *args; /* arg list of interesting process */
112 struct kinfo_proc *dkp; /* debug option proc list */
113 } *ep, *ehead = NULL, **nextp = &ehead;
115 #define debugproc(p) *(&((struct kinfo_proc *)p)->ki_udata)
117 #define W_DISPUSERSIZE 10
118 #define W_DISPLINESIZE 8
119 #define W_DISPHOSTSIZE 24
121 static void pr_header(time_t *, int);
122 static struct stat *ttystat(char *);
123 static void usage(int);
124 static int this_is_uptime(const char *s);
126 char *fmt_argv(char **, char *, char *, size_t); /* ../../bin/ps/fmt.c */
129 main(int argc, char *argv[])
131 struct kinfo_proc *kp;
132 struct kinfo_proc *dkp;
135 int ch, i, nentries, nusers, wcmd, longidle, longattime;
136 const char *memf, *nlistf, *p;
138 char buf[MAXHOSTNAMELEN], errbuf[_POSIX2_LINE_MAX];
139 char fn[MAXHOSTNAMELEN];
142 (void)setlocale(LC_ALL, "");
143 use_ampm = (*nl_langinfo(T_FMT_AMPM) != '\0');
144 use_comma = (*nl_langinfo(RADIXCHAR) != ',');
146 /* Are we w(1) or uptime(1)? */
147 if (this_is_uptime(argv[0]) == 0) {
155 memf = _PATH_DEVNULL;
157 while ((ch = getopt(argc, argv, p)) != -1)
178 case 'f': case 'l': case 's': case 'u': case 'w':
179 warnx("[-flsuw] no longer supported");
188 if (!(_res.options & RES_INIT))
190 _res.retrans = 2; /* resolver timeout to 2 seconds per try */
191 _res.retry = 1; /* only try once.. */
193 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf)) == NULL)
194 errx(1, "%s", errbuf);
202 for (nusers = 0; (utmp = getutxent()) != NULL;) {
203 if (utmp->ut_type != USER_PROCESS)
205 if (!(stp = ttystat(utmp->ut_line)))
206 continue; /* corrupted record */
215 for (user = sel_users; !usermatch && *user; user++)
216 if (!strcmp(utmp->ut_user, *user))
221 if ((ep = calloc(1, sizeof(struct entry))) == NULL)
225 memmove(&ep->utmp, utmp, sizeof *utmp);
226 ep->tdev = stp->st_rdev;
228 * If this is the console device, attempt to ascertain
229 * the true console device dev_t.
234 size = sizeof(dev_t);
235 (void)sysctlbyname("machdep.consdev", &ep->tdev, &size, NULL, 0);
237 touched = stp->st_atime;
238 if (touched < ep->utmp.ut_tv.tv_sec) {
239 /* tty untouched since before login */
240 touched = ep->utmp.ut_tv.tv_sec;
242 if ((ep->idle = now - touched) < 0)
247 if (header || wcmd == 0) {
248 pr_header(&now, nusers);
254 #define HEADER_USER "USER"
255 #define HEADER_TTY "TTY"
256 #define HEADER_FROM "FROM"
257 #define HEADER_LOGIN_IDLE "LOGIN@ IDLE "
258 #define HEADER_WHAT "WHAT\n"
259 #define WUSED (W_DISPUSERSIZE + W_DISPLINESIZE + W_DISPHOSTSIZE + \
260 sizeof(HEADER_LOGIN_IDLE) + 3) /* header width incl. spaces */
261 (void)printf("%-*.*s %-*.*s %-*.*s %s",
262 W_DISPUSERSIZE, W_DISPUSERSIZE, HEADER_USER,
263 W_DISPLINESIZE, W_DISPLINESIZE, HEADER_TTY,
264 W_DISPHOSTSIZE, W_DISPHOSTSIZE, HEADER_FROM,
265 HEADER_LOGIN_IDLE HEADER_WHAT);
268 if ((kp = kvm_getprocs(kd, KERN_PROC_ALL, 0, &nentries)) == NULL)
269 err(1, "%s", kvm_geterr(kd));
270 for (i = 0; i < nentries; i++, kp++) {
271 if (kp->ki_stat == SIDL || kp->ki_stat == SZOMB ||
272 kp->ki_tdev == NODEV)
274 for (ep = ehead; ep != NULL; ep = ep->next) {
275 if (ep->tdev == kp->ki_tdev) {
277 * proc is associated with this terminal
279 if (ep->kp == NULL && kp->ki_pgid == kp->ki_tpgid) {
281 * Proc is 'most interesting'
283 if (proc_compare(ep->kp, kp))
287 * Proc debug option info; add to debug
288 * list using kinfo_proc ki_spare[0]
289 * as next pointer; ptr to ptr avoids the
290 * ptr = long assumption.
298 if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) == -1 &&
299 ioctl(STDERR_FILENO, TIOCGWINSZ, &ws) == -1 &&
300 ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) == -1) || ws.ws_col == 0)
303 ttywidth = ws.ws_col - 1;
304 argwidth = ttywidth - WUSED;
307 for (ep = ehead; ep != NULL; ep = ep->next) {
308 if (ep->kp == NULL) {
309 ep->args = strdup("-");
312 ep->args = fmt_argv(kvm_getargv(kd, ep->kp, argwidth),
313 ep->kp->ki_comm, NULL, MAXCOMLEN);
314 if (ep->args == NULL)
317 /* sort by idle time */
318 if (sortidle && ehead != NULL) {
319 struct entry *from, *save;
323 while (from != NULL) {
325 (*nextp) && from->idle >= (*nextp)->idle;
326 nextp = &(*nextp)->next)
335 for (ep = ehead; ep != NULL; ep = ep->next) {
336 struct addrinfo hints, *res;
337 struct sockaddr_storage ss;
338 struct sockaddr *sa = (struct sockaddr *)&ss;
339 struct sockaddr_in *lsin = (struct sockaddr_in *)&ss;
340 struct sockaddr_in6 *lsin6 = (struct sockaddr_in6 *)&ss;
344 p = *ep->utmp.ut_host ? ep->utmp.ut_host : "-";
345 if ((x_suffix = strrchr(p, ':')) != NULL) {
346 if ((dot = strchr(x_suffix, '.')) != NULL &&
347 strchr(dot+1, '.') == NULL)
354 memset(&ss, '\0', sizeof(ss));
355 if (inet_pton(AF_INET6, p, &lsin6->sin6_addr) == 1) {
356 lsin6->sin6_len = sizeof(*lsin6);
357 lsin6->sin6_family = AF_INET6;
359 } else if (inet_pton(AF_INET, p, &lsin->sin_addr) == 1) {
360 lsin->sin_len = sizeof(*lsin);
361 lsin->sin_family = AF_INET;
365 /* Attempt to change an IP address into a name */
366 if (isaddr && realhostname_sa(fn, sizeof(fn), sa,
367 sa->sa_len) == HOSTNAME_FOUND)
369 } else if (!isaddr) {
371 * If a host has only one A/AAAA RR, change a
372 * name into an IP address
374 memset(&hints, 0, sizeof(hints));
375 hints.ai_flags = AI_PASSIVE;
376 hints.ai_family = AF_UNSPEC;
377 hints.ai_socktype = SOCK_STREAM;
378 if (getaddrinfo(p, NULL, &hints, &res) == 0) {
379 if (res->ai_next == NULL &&
380 getnameinfo(res->ai_addr, res->ai_addrlen,
381 fn, sizeof(fn), NULL, 0,
382 NI_NUMERICHOST) == 0)
389 (void)snprintf(buf, sizeof(buf), "%s:%s", p, x_suffix);
393 for (dkp = ep->dkp; dkp != NULL; dkp = debugproc(dkp)) {
396 ptr = fmt_argv(kvm_getargv(kd, dkp, argwidth),
397 dkp->ki_comm, NULL, MAXCOMLEN);
400 (void)printf("\t\t%-9d %s\n",
404 (void)printf("%-*.*s %-*.*s %-*.*s ",
405 W_DISPUSERSIZE, W_DISPUSERSIZE, ep->utmp.ut_user,
406 W_DISPLINESIZE, W_DISPLINESIZE,
408 (strncmp(ep->utmp.ut_line, "tty", 3) &&
409 strncmp(ep->utmp.ut_line, "cua", 3) ?
410 ep->utmp.ut_line : ep->utmp.ut_line + 3) : "-",
411 W_DISPHOSTSIZE, W_DISPHOSTSIZE, *p ? p : "-");
412 t = ep->utmp.ut_tv.tv_sec;
413 longattime = pr_attime(&t, &now);
414 longidle = pr_idle(ep->idle);
415 (void)printf("%.*s\n", argwidth - longidle - longattime,
423 pr_header(time_t *nowp, int nusers)
428 int days, hrs, i, mins, secs;
434 if (strftime(buf, sizeof(buf),
435 use_ampm ? "%l:%M%p" : "%k:%M", localtime(nowp)) != 0)
436 (void)printf("%s ", buf);
438 * Print how long system has been up.
440 if (clock_gettime(CLOCK_UPTIME, &tp) != -1) {
444 days = uptime / 86400;
452 (void)printf(" %d day%s,", days, days > 1 ? "s" : "");
453 if (hrs > 0 && mins > 0)
454 (void)printf(" %2d:%02d,", hrs, mins);
456 (void)printf(" %d hr%s,", hrs, hrs > 1 ? "s" : "");
458 (void)printf(" %d min%s,", mins, mins > 1 ? "s" : "");
460 (void)printf(" %d sec%s,", secs, secs > 1 ? "s" : "");
463 /* Print number of users logged in to system */
464 (void)printf(" %d user%s", nusers, nusers == 1 ? "" : "s");
467 * Print 1, 5, and 15 minute load averages.
469 if (getloadavg(avenrun, sizeof(avenrun) / sizeof(avenrun[0])) == -1)
470 (void)printf(", no load average information available\n");
472 (void)printf(", load averages:");
473 for (i = 0; i < (int)(sizeof(avenrun) / sizeof(avenrun[0])); i++) {
474 if (use_comma && i > 0)
476 (void)printf(" %.2f", avenrun[i]);
485 static struct stat sb;
486 char ttybuf[MAXPATHLEN];
488 (void)snprintf(ttybuf, sizeof(ttybuf), "%s%s", _PATH_DEV, line);
489 if (stat(ttybuf, &sb) == 0 && S_ISCHR(sb.st_mode)) {
499 (void)fprintf(stderr,
500 "usage: w [-dhin] [-M core] [-N system] [user ...]\n");
502 (void)fprintf(stderr, "usage: uptime\n");
507 this_is_uptime(const char *s)
511 if ((u = strrchr(s, '/')) != NULL)
515 if (strcmp(u, "uptime") == 0)