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af359dea C |
1 | /*- |
2 | * Copyright (c) 1980, 1991 The Regents of the University of California. | |
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. | |
f42904bc DF |
32 | */ |
33 | ||
34 | #ifndef lint | |
35 | char copyright[] = | |
af359dea | 36 | "@(#) Copyright (c) 1980, 1991 The Regents of the University of California.\n\ |
f42904bc | 37 | All rights reserved.\n"; |
af359dea | 38 | #endif /* not lint */ |
f42904bc | 39 | |
68d13ee3 | 40 | #ifndef lint |
af359dea C |
41 | static char sccsid[] = "@(#)w.c 5.29 (Berkeley) 4/23/91"; |
42 | #endif /* not lint */ | |
f42904bc | 43 | |
76238d88 BJ |
44 | /* |
45 | * w - print system status (who and what) | |
46 | * | |
47 | * This program is similar to the systat command on Tenex/Tops 10/20 | |
134b296f | 48 | * |
76238d88 BJ |
49 | */ |
50 | #include <sys/param.h> | |
76238d88 | 51 | #include <utmp.h> |
76aee4b1 | 52 | #include <sys/time.h> |
76238d88 | 53 | #include <sys/stat.h> |
76238d88 | 54 | #include <sys/proc.h> |
76aee4b1 | 55 | #include <sys/user.h> |
3b8dff21 | 56 | #include <sys/ioctl.h> |
af08d75a | 57 | #include <sys/tty.h> |
134b296f MT |
58 | #include <nlist.h> |
59 | #include <kvm.h> | |
60 | #include <ctype.h> | |
57bb6ffa | 61 | #include <paths.h> |
38dde0cd | 62 | #include <string.h> |
134b296f | 63 | #include <stdio.h> |
76238d88 | 64 | |
76aee4b1 MK |
65 | #ifdef SPPWAIT |
66 | #define NEWVM | |
67 | #endif | |
68 | #ifndef NEWVM | |
69 | #include <machine/pte.h> | |
70 | #include <sys/vm.h> | |
71 | #endif | |
72 | ||
134b296f MT |
73 | char *program; |
74 | int ttywidth; /* width of tty */ | |
75 | int argwidth; /* width of tty */ | |
76238d88 | 76 | int header = 1; /* true if -h flag: don't print heading */ |
134b296f | 77 | int wcmd = 1; /* true if this is w(1), and not uptime(1) */ |
76238d88 BJ |
78 | int nusers; /* number of users logged in now */ |
79 | char * sel_user; /* login of particular user selected */ | |
76238d88 | 80 | time_t now; /* the current time of day */ |
a43be079 SL |
81 | struct timeval boottime; |
82 | time_t uptime; /* time of last reboot & elapsed time since */ | |
76238d88 | 83 | struct utmp utmp; |
134b296f MT |
84 | struct winsize ws; |
85 | int sortidle; /* sort bu idle time */ | |
86 | ||
87 | ||
88 | /* | |
89 | * One of these per active utmp entry. | |
90 | */ | |
91 | struct entry { | |
92 | struct entry *next; | |
93 | struct utmp utmp; | |
94 | dev_t tdev; /* dev_t of terminal */ | |
95 | int idle; /* idle time of terminal in minutes */ | |
96 | struct proc *proc; /* list of procs in foreground */ | |
97 | char *args; /* arg list of interesting process */ | |
98 | } *ep, *ehead = NULL, **nextp = &ehead; | |
99 | ||
100 | struct nlist nl[] = { | |
101 | { "_boottime" }, | |
102 | #define X_BOOTTIME 0 | |
958d0e58 KB |
103 | #if defined(hp300) |
104 | { "_cn_tty" }, | |
105 | #define X_CNTTY 1 | |
106 | #endif | |
134b296f MT |
107 | { "" }, |
108 | }; | |
109 | ||
ee8a3c9d | 110 | #define USAGE "[ -hi ] [ user ]" |
134b296f | 111 | #define usage() fprintf(stderr, "usage: %s: %s\n", program, USAGE) |
76238d88 BJ |
112 | |
113 | main(argc, argv) | |
af359dea | 114 | int argc; |
76238d88 BJ |
115 | char **argv; |
116 | { | |
134b296f | 117 | register int i; |
3b8dff21 | 118 | struct winsize win; |
134b296f MT |
119 | register struct proc *p; |
120 | struct eproc *e; | |
121 | struct stat *stp, *ttystat(); | |
122 | FILE *ut; | |
123 | char *cp; | |
124 | int ch; | |
125 | extern char *optarg; | |
126 | extern int optind; | |
12bed5d4 | 127 | char *attime(); |
76238d88 | 128 | |
134b296f MT |
129 | program = argv[0]; |
130 | /* | |
131 | * are we w(1) or uptime(1) | |
132 | */ | |
133 | if ((cp = rindex(program, '/')) || *(cp = program) == '-') | |
134 | cp++; | |
135 | if (*cp == 'u') | |
136 | wcmd = 0; | |
137 | ||
ee8a3c9d | 138 | while ((ch = getopt(argc, argv, "hiflsuw")) != EOF) |
134b296f MT |
139 | switch((char)ch) { |
140 | case 'h': | |
141 | header = 0; | |
142 | break; | |
ee8a3c9d | 143 | case 'i': |
134b296f MT |
144 | sortidle++; |
145 | break; | |
146 | case 'f': case 'l': case 's': case 'u': case 'w': | |
147 | error("[-flsuw] no longer supported"); | |
148 | usage(); | |
149 | exit(1); | |
150 | case '?': | |
151 | default: | |
152 | usage(); | |
153 | exit(1); | |
76238d88 | 154 | } |
134b296f MT |
155 | argc -= optind; |
156 | argv += optind; | |
af359dea C |
157 | |
158 | if (*argv) | |
159 | sel_user = *argv; | |
76238d88 | 160 | |
134b296f MT |
161 | if (header && kvm_nlist(nl) != 0) { |
162 | error("can't get namelist"); | |
163 | exit (1); | |
be7adcb6 | 164 | } |
80b96391 | 165 | time(&now); |
134b296f MT |
166 | ut = fopen(_PATH_UTMP, "r"); |
167 | while (fread(&utmp, sizeof(utmp), 1, ut)) { | |
168 | if (utmp.ut_name[0] == '\0') | |
169 | continue; | |
170 | nusers++; | |
171 | if (wcmd == 0 || (sel_user && | |
172 | strncmp(utmp.ut_name, sel_user, UT_NAMESIZE) != 0)) | |
173 | continue; | |
174 | if ((ep = (struct entry *) | |
175 | calloc(1, sizeof (struct entry))) == NULL) { | |
176 | error("out of memory"); | |
177 | exit(1); | |
178 | } | |
179 | *nextp = ep; | |
180 | nextp = &(ep->next); | |
181 | bcopy(&utmp, &(ep->utmp), sizeof (struct utmp)); | |
182 | stp = ttystat(ep->utmp.ut_line); | |
183 | ep->tdev = stp->st_rdev; | |
958d0e58 KB |
184 | #if defined(hp300) |
185 | /* | |
186 | * XXX If this is the console device, attempt to ascertain | |
187 | * the true console device dev_t. | |
188 | */ | |
189 | if (ep->tdev == 0) { | |
190 | static dev_t cn_dev; | |
191 | ||
192 | if (nl[X_CNTTY].n_value) { | |
193 | struct tty cn_tty, *cn_ttyp; | |
194 | ||
af359dea C |
195 | if (kvm_read((void *)nl[X_CNTTY].n_value, |
196 | &cn_ttyp, sizeof(cn_ttyp)) > 0) { | |
958d0e58 | 197 | (void)kvm_read(cn_ttyp, &cn_tty, |
af359dea | 198 | sizeof (cn_tty)); |
958d0e58 KB |
199 | cn_dev = cn_tty.t_dev; |
200 | } | |
201 | nl[X_CNTTY].n_value = 0; | |
202 | } | |
203 | ep->tdev = cn_dev; | |
204 | } | |
205 | #endif | |
134b296f MT |
206 | ep->idle = ((now - stp->st_atime) + 30) / 60; /* secs->mins */ |
207 | if (ep->idle < 0) | |
208 | ep->idle = 0; | |
209 | } | |
210 | fclose(ut); | |
211 | ||
212 | if (header || wcmd == 0) { | |
213 | double avenrun[3]; | |
214 | int days, hrs, mins; | |
76238d88 | 215 | |
134b296f MT |
216 | /* |
217 | * Print time of day | |
218 | */ | |
219 | fputs(attime(&now), stdout); | |
76238d88 BJ |
220 | /* |
221 | * Print how long system has been up. | |
a43be079 | 222 | * (Found by looking for "boottime" in kernel) |
76238d88 | 223 | */ |
af359dea C |
224 | (void)kvm_read((void *)nl[X_BOOTTIME].n_value, &boottime, |
225 | sizeof (boottime)); | |
a43be079 | 226 | uptime = now - boottime.tv_sec; |
baaa0078 | 227 | uptime += 30; |
76238d88 BJ |
228 | days = uptime / (60*60*24); |
229 | uptime %= (60*60*24); | |
230 | hrs = uptime / (60*60); | |
231 | uptime %= (60*60); | |
baaa0078 | 232 | mins = uptime / 60; |
76238d88 BJ |
233 | |
234 | printf(" up"); | |
235 | if (days > 0) | |
236 | printf(" %d day%s,", days, days>1?"s":""); | |
237 | if (hrs > 0 && mins > 0) { | |
238 | printf(" %2d:%02d,", hrs, mins); | |
239 | } else { | |
240 | if (hrs > 0) | |
241 | printf(" %d hr%s,", hrs, hrs>1?"s":""); | |
242 | if (mins > 0) | |
243 | printf(" %d min%s,", mins, mins>1?"s":""); | |
244 | } | |
245 | ||
246 | /* Print number of users logged in to system */ | |
fddf7972 | 247 | printf(" %d user%s", nusers, nusers>1?"s":""); |
76238d88 BJ |
248 | |
249 | /* | |
250 | * Print 1, 5, and 15 minute load averages. | |
76238d88 BJ |
251 | */ |
252 | printf(", load average:"); | |
07c23b0d | 253 | (void)getloadavg(avenrun, sizeof(avenrun) / sizeof(avenrun[0])); |
76238d88 BJ |
254 | for (i = 0; i < (sizeof(avenrun)/sizeof(avenrun[0])); i++) { |
255 | if (i > 0) | |
256 | printf(","); | |
257 | printf(" %.2f", avenrun[i]); | |
258 | } | |
259 | printf("\n"); | |
134b296f | 260 | if (wcmd == 0) /* if uptime(1) then done */ |
76238d88 | 261 | exit(0); |
134b296f MT |
262 | #define HEADER "USER TTY FROM LOGIN@ IDLE WHAT\n" |
263 | #define WUSED (sizeof (HEADER) - sizeof ("WHAT\n")) | |
264 | printf(HEADER); | |
76238d88 BJ |
265 | } |
266 | ||
7a5744ec | 267 | while ((p = kvm_nextproc()) != NULL) { |
134b296f MT |
268 | if (p->p_stat == SZOMB || (p->p_flag & SCTTY) == 0) |
269 | continue; | |
270 | e = kvm_geteproc(p); | |
271 | for (ep = ehead; ep != NULL; ep = ep->next) { | |
272 | if (ep->tdev == e->e_tdev && e->e_pgid == e->e_tpgid) { | |
273 | /* | |
274 | * Proc is in foreground of this terminal | |
275 | */ | |
276 | if (proc_compare(ep->proc, p)) | |
277 | ep->proc = p; | |
278 | break; | |
76238d88 BJ |
279 | } |
280 | } | |
76238d88 | 281 | } |
134b296f MT |
282 | if ((ioctl(1, TIOCGWINSZ, &ws) == -1 && |
283 | ioctl(2, TIOCGWINSZ, &ws) == -1 && | |
284 | ioctl(0, TIOCGWINSZ, &ws) == -1) || ws.ws_col == 0) | |
285 | ttywidth = 79; | |
286 | else | |
287 | ttywidth = ws.ws_col - 1; | |
288 | argwidth = ttywidth - WUSED; | |
289 | if (argwidth < 4) | |
290 | argwidth = 8; | |
291 | for (ep = ehead; ep != NULL; ep = ep->next) { | |
12bed5d4 | 292 | ep->args = strdup(kvm_getargs(ep->proc, kvm_getu(ep->proc))); |
134b296f MT |
293 | if (ep->args == NULL) { |
294 | error("out of memory"); | |
295 | exit(1); | |
296 | } | |
297 | } | |
298 | /* sort by idle time */ | |
299 | if (sortidle && ehead != NULL) { | |
300 | struct entry *from = ehead, *save; | |
301 | ||
302 | ehead = NULL; | |
303 | while (from != NULL) { | |
304 | for (nextp = &ehead; | |
305 | (*nextp) && from->idle >= (*nextp)->idle; | |
306 | nextp = &(*nextp)->next) | |
307 | ; | |
308 | save = from; | |
309 | from = from->next; | |
310 | save->next = *nextp; | |
311 | *nextp = save; | |
312 | } | |
313 | } | |
314 | ||
315 | for (ep = ehead; ep != NULL; ep = ep->next) { | |
316 | printf("%-*.*s %-2.2s %-*.*s %s", | |
317 | UT_NAMESIZE, UT_NAMESIZE, ep->utmp.ut_name, | |
318 | strncmp(ep->utmp.ut_line, "tty", 3) == 0 ? | |
319 | ep->utmp.ut_line+3 : ep->utmp.ut_line, | |
320 | UT_HOSTSIZE, UT_HOSTSIZE, *ep->utmp.ut_host ? | |
321 | ep->utmp.ut_host : "-", | |
322 | attime(&ep->utmp.ut_time)); | |
323 | if (ep->idle >= 36 * 60) | |
324 | printf(" %ddays ", (ep->idle + 12 * 60) / (24 * 60)); | |
325 | else | |
326 | prttime(ep->idle, " "); | |
327 | printf("%.*s\n", argwidth, ep->args); | |
328 | } | |
86858041 | 329 | exit(0); |
76238d88 BJ |
330 | } |
331 | ||
134b296f MT |
332 | struct stat * |
333 | ttystat(line) | |
334 | { | |
335 | static struct stat statbuf; | |
336 | char ttybuf[sizeof (_PATH_DEV) + UT_LINESIZE + 1]; | |
337 | ||
338 | sprintf(ttybuf, "%s/%.*s", _PATH_DEV, UT_LINESIZE, line); | |
339 | (void) stat(ttybuf, &statbuf); | |
76238d88 | 340 | |
134b296f | 341 | return (&statbuf); |
76238d88 BJ |
342 | } |
343 | ||
76238d88 | 344 | /* |
80b96391 | 345 | * prttime prints a time in hours and minutes or minutes and seconds. |
76238d88 BJ |
346 | * The character string tail is printed at the end, obvious |
347 | * strings to pass are "", " ", or "am". | |
348 | */ | |
349 | prttime(tim, tail) | |
350 | time_t tim; | |
351 | char *tail; | |
352 | { | |
76238d88 BJ |
353 | |
354 | if (tim >= 60) { | |
891d0483 | 355 | printf(" %2d:", tim/60); |
80b96391 MK |
356 | tim %= 60; |
357 | printf("%02d", tim); | |
891d0483 | 358 | } else if (tim >= 0) |
80b96391 | 359 | printf(" %2d", tim); |
76238d88 BJ |
360 | printf("%s", tail); |
361 | } | |
362 | ||
134b296f | 363 | #include <varargs.h> |
76238d88 | 364 | |
134b296f MT |
365 | error(va_alist) |
366 | va_dcl | |
76238d88 | 367 | { |
134b296f MT |
368 | char *fmt; |
369 | va_list ap; | |
370 | ||
371 | fprintf(stderr, "%s: ", program); | |
372 | va_start(ap); | |
373 | fmt = va_arg(ap, char *); | |
374 | (void) vfprintf(stderr, fmt, ap); | |
375 | va_end(ap); | |
376 | fprintf(stderr, "\n"); | |
76238d88 | 377 | } |