Annotation of src/usr.bin/last/last.c, Revision 1.48
1.48 ! millert 1: /* $OpenBSD: last.c,v 1.47 2015/03/14 18:00:31 deraadt Exp $ */
1.1 deraadt 2: /* $NetBSD: last.c,v 1.6 1994/12/24 16:49:02 cgd Exp $ */
3:
4: /*
5: * Copyright (c) 1987, 1993, 1994
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
1.26 millert 16: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: */
32:
33: #include <sys/stat.h>
34:
1.35 chl 35: #include <ctype.h>
1.1 deraadt 36: #include <err.h>
37: #include <fcntl.h>
1.38 fgsch 38: #include <libgen.h>
1.1 deraadt 39: #include <paths.h>
40: #include <signal.h>
41: #include <stdio.h>
42: #include <stdlib.h>
43: #include <string.h>
44: #include <time.h>
45: #include <unistd.h>
1.45 deraadt 46: #include <limits.h>
1.1 deraadt 47: #include <utmp.h>
48:
49: #define NO 0 /* false/no */
50: #define YES 1 /* true/yes */
1.18 mickey 51: #define ATOI2(ar) ((ar)[0] - '0') * 10 + ((ar)[1] - '0'); (ar) += 2;
1.1 deraadt 52:
53: static struct utmp buf[1024]; /* utmp read buffer */
54:
1.33 deraadt 55: struct arg {
1.1 deraadt 56: char *name; /* argument */
57: #define HOST_TYPE -2
58: #define TTY_TYPE -3
59: #define USER_TYPE -4
60: int type; /* type of arg */
1.33 deraadt 61: struct arg *next; /* linked list pointer */
62: } *arglist;
1.1 deraadt 63:
1.33 deraadt 64: struct ttytab {
1.1 deraadt 65: time_t logout; /* log out time */
66: char tty[UT_LINESIZE + 1]; /* terminal name */
1.33 deraadt 67: struct ttytab*next; /* linked list pointer */
68: } *ttylist;
1.1 deraadt 69:
70: static time_t currentout; /* current logout value */
1.33 deraadt 71: static long maxrec = -1; /* records to display */
1.1 deraadt 72: static char *file = _PATH_WTMP; /* wtmp file */
1.6 mickey 73: static int fulltime = 0; /* Display seconds? */
1.33 deraadt 74: static time_t snaptime = 0; /* report only at this time */
75: static int calculate = 0;
76: static int seconds = 0;
1.1 deraadt 77:
1.19 millert 78: void addarg(int, char *);
1.33 deraadt 79: struct ttytab *addtty(char *);
1.19 millert 80: void hostconv(char *);
81: void onintr(int);
82: char *ttyconv(char *);
83: time_t dateconv(char *);
84: int want(struct utmp *, int);
85: void wtmp(void);
86: void checkargs(void);
1.40 guenther 87: void print_entry(const struct utmp *);
1.22 deraadt 88: void usage(void);
1.1 deraadt 89:
1.28 deraadt 90: #define NAME_WIDTH 9
1.14 fgsch 91: #define HOST_WIDTH 24
1.48 ! millert 92:
! 93: #define SECSPERDAY (24 * 60 * 60)
1.13 deraadt 94:
1.1 deraadt 95: int
1.27 deraadt 96: main(int argc, char *argv[])
1.1 deraadt 97: {
1.31 millert 98: const char *errstr;
1.33 deraadt 99: int ch, lastch = '\0', newarg = 1, prevoptind = 1;
1.1 deraadt 100:
1.32 millert 101: while ((ch = getopt(argc, argv, "0123456789cf:h:n:st:d:T")) != -1) {
1.1 deraadt 102: switch (ch) {
103: case '0': case '1': case '2': case '3': case '4':
104: case '5': case '6': case '7': case '8': case '9':
105: /*
106: * kludge: last was originally designed to take
107: * a number after a dash.
108: */
1.32 millert 109: if (newarg || !isdigit(lastch))
110: maxrec = 0;
111: else if (maxrec > INT_MAX / 10)
112: usage();
113: maxrec = (maxrec * 10) + (ch - '0');
1.1 deraadt 114: break;
1.9 downsj 115: case 'c':
1.46 deraadt 116: calculate = 1;
1.9 downsj 117: break;
1.1 deraadt 118: case 'f':
119: file = optarg;
120: break;
121: case 'h':
122: hostconv(optarg);
123: addarg(HOST_TYPE, optarg);
124: break;
1.31 millert 125: case 'n':
126: maxrec = strtonum(optarg, 0, LONG_MAX, &errstr);
127: if (errstr != NULL)
128: errx(1, "number of lines is %s: %s", errstr,
129: optarg);
130: if (maxrec == 0)
131: exit(0);
132: break;
1.9 downsj 133: case 's':
1.46 deraadt 134: seconds = 1;
1.9 downsj 135: break;
1.1 deraadt 136: case 't':
137: addarg(TTY_TYPE, ttyconv(optarg));
138: break;
1.4 jdm 139: case 'd':
140: snaptime = dateconv(optarg);
141: break;
1.6 mickey 142: case 'T':
1.9 downsj 143: fulltime = 1;
1.6 mickey 144: break;
1.1 deraadt 145: default:
1.22 deraadt 146: usage();
1.1 deraadt 147: }
1.32 millert 148: lastch = ch;
149: newarg = optind != prevoptind;
150: prevoptind = optind;
151: }
152: if (maxrec == 0)
153: exit(0);
1.1 deraadt 154:
155: if (argc) {
1.43 millert 156: setvbuf(stdout, NULL, _IOLBF, 0);
1.1 deraadt 157: for (argv += optind; *argv; ++argv) {
158: #define COMPATIBILITY
159: #ifdef COMPATIBILITY
160: /* code to allow "last p5" to work */
161: addarg(TTY_TYPE, ttyconv(*argv));
162: #endif
163: addarg(USER_TYPE, *argv);
164: }
165: }
1.18 mickey 166:
1.5 jdm 167: checkargs();
1.1 deraadt 168: wtmp();
169: exit(0);
170: }
171:
172: /*
1.33 deraadt 173: * if snaptime is set, print warning if usernames, or -t or -h
174: * flags are also provided
1.5 jdm 175: */
176: void
1.27 deraadt 177: checkargs(void)
1.5 jdm 178: {
1.18 mickey 179: int ttyflag = 0;
1.33 deraadt 180: struct arg *step;
1.5 jdm 181:
1.33 deraadt 182: if (!snaptime || !arglist)
1.5 jdm 183: return;
184:
185: for (step = arglist; step; step = step->next)
186: switch (step->type) {
187: case HOST_TYPE:
1.7 deraadt 188: (void)fprintf(stderr,
189: "Warning: Ignoring hostname flag\n");
1.5 jdm 190: break;
191: case TTY_TYPE:
1.18 mickey 192: if (!ttyflag) { /* don't print this twice */
1.7 deraadt 193: (void)fprintf(stderr,
194: "Warning: Ignoring tty flag\n");
1.5 jdm 195: ttyflag = 1;
196: }
197: break;
198: case USER_TYPE:
1.7 deraadt 199: (void)fprintf(stderr,
200: "Warning: Ignoring username[s]\n");
1.5 jdm 201: break;
202: default:
1.20 millert 203: break;
1.5 jdm 204: /* PRINT NOTHING */
205: }
1.18 mickey 206: }
1.5 jdm 207:
1.40 guenther 208: void
209: print_entry(const struct utmp *bp)
210: {
211: printf("%-*.*s %-*.*s %-*.*s ",
212: NAME_WIDTH, UT_NAMESIZE, bp->ut_name,
213: UT_LINESIZE, UT_LINESIZE, bp->ut_line,
214: HOST_WIDTH, UT_HOSTSIZE, bp->ut_host);
215:
216: if (seconds)
217: printf("%lld", (long long)bp->ut_time);
218: else {
219: struct tm *tm;
220:
221: tm = localtime(&bp->ut_time);
222: if (tm == NULL) {
223: /* bogus entry? format as epoch time... */
224: printf("%lld", (long long)bp->ut_time);
225: } else {
226: char tim[40];
227:
228: strftime(tim, sizeof tim,
229: fulltime ? "%a %b %d %H:%M:%S" : "%a %b %d %H:%M",
230: tm);
231: printf("%s", tim);
232: }
233: }
234: }
235:
1.5 jdm 236:
237: /*
1.33 deraadt 238: * read through the wtmp file
1.1 deraadt 239: */
240: void
1.27 deraadt 241: wtmp(void)
1.1 deraadt 242: {
1.33 deraadt 243: time_t delta, total = 0;
244: int timesize, wfd, snapfound = 0;
1.44 tedu 245: char *ct, *crmsg = "invalid";
1.33 deraadt 246: struct utmp *bp;
247: struct stat stb;
248: ssize_t bytes;
1.8 deraadt 249: off_t bl;
1.33 deraadt 250: struct ttytab *T;
251:
1.1 deraadt 252: if ((wfd = open(file, O_RDONLY, 0)) < 0 || fstat(wfd, &stb) == -1)
253: err(1, "%s", file);
254: bl = (stb.st_size + sizeof(buf) - 1) / sizeof(buf);
255:
1.6 mickey 256: if (fulltime)
257: timesize = 8; /* HH:MM:SS */
258: else
259: timesize = 5; /* HH:MM */
260:
1.1 deraadt 261: (void)time(&buf[0].ut_time);
262: (void)signal(SIGINT, onintr);
263: (void)signal(SIGQUIT, onintr);
264:
265: while (--bl >= 0) {
1.11 millert 266: if (lseek(wfd, bl * sizeof(buf), SEEK_SET) == -1 ||
1.1 deraadt 267: (bytes = read(wfd, buf, sizeof(buf))) == -1)
268: err(1, "%s", file);
269: for (bp = &buf[bytes / sizeof(buf[0]) - 1]; bp >= buf; --bp) {
270: /*
271: * if the terminal line is '~', the machine stopped.
272: * see utmp(5) for more info.
273: */
274: if (bp->ut_line[0] == '~' && !bp->ut_line[1]) {
275: /* everybody just logged out */
276: for (T = ttylist; T; T = T->next)
277: T->logout = -bp->ut_time;
278: currentout = -bp->ut_time;
279: crmsg = strncmp(bp->ut_name, "shutdown",
280: UT_NAMESIZE) ? "crash" : "shutdown";
1.33 deraadt 281:
1.18 mickey 282: /*
283: * if we're in snapshot mode, we want to
1.4 jdm 284: * exit if this shutdown/reboot appears
285: * while we we are tracking the active
286: * range
287: */
1.33 deraadt 288: if (snaptime && snapfound) {
289: close(wfd);
1.4 jdm 290: return;
1.33 deraadt 291: }
292:
1.18 mickey 293: /*
1.4 jdm 294: * don't print shutdown/reboot entries
1.18 mickey 295: * unless flagged for
296: */
1.5 jdm 297: if (want(bp, NO)) {
1.40 guenther 298: print_entry(bp);
299: printf("\n");
1.33 deraadt 300: if (maxrec != -1 && !--maxrec) {
301: close(wfd);
1.1 deraadt 302: return;
1.33 deraadt 303: }
1.1 deraadt 304: }
305: continue;
306: }
1.33 deraadt 307:
1.1 deraadt 308: /*
309: * if the line is '{' or '|', date got set; see
310: * utmp(5) for more info.
311: */
1.33 deraadt 312: if ((bp->ut_line[0] == '{' || bp->ut_line[0] == '|') &&
313: !bp->ut_line[1]) {
1.5 jdm 314: if (want(bp, NO)) {
1.40 guenther 315: print_entry(bp);
316: printf("\n");
1.33 deraadt 317: if (maxrec && !--maxrec) {
318: close(wfd);
1.1 deraadt 319: return;
1.33 deraadt 320: }
1.1 deraadt 321: }
322: continue;
323: }
1.33 deraadt 324:
1.1 deraadt 325: /* find associated tty */
326: for (T = ttylist;; T = T->next) {
327: if (!T) {
328: /* add new one */
329: T = addtty(bp->ut_line);
330: break;
331: }
332: if (!strncmp(T->tty, bp->ut_line, UT_LINESIZE))
333: break;
334: }
1.33 deraadt 335:
1.18 mickey 336: /*
1.4 jdm 337: * print record if not in snapshot mode and wanted
338: * or in snapshot mode and in snapshot range
339: */
340: if (bp->ut_name[0] &&
1.28 deraadt 341: ((want(bp, YES)) || (bp->ut_time < snaptime &&
342: (T->logout > snaptime || !T->logout ||
343: T->logout < 0)))) {
1.4 jdm 344: snapfound = 1;
1.40 guenther 345: print_entry(bp);
346: printf(" ");
1.33 deraadt 347:
1.1 deraadt 348: if (!T->logout)
349: puts(" still logged in");
350: else {
351: if (T->logout < 0) {
352: T->logout = -T->logout;
353: printf("- %s", crmsg);
1.9 downsj 354: } else {
1.18 mickey 355: if (seconds)
1.40 guenther 356: printf("- %lld",
357: (long long)T->logout);
1.9 downsj 358: else
359: printf("- %*.*s",
360: timesize, timesize,
361: ctime(&T->logout)+11);
1.1 deraadt 362: }
363: delta = T->logout - bp->ut_time;
1.9 downsj 364: if (seconds)
1.40 guenther 365: printf(" (%lld)\n",
366: (long long)delta);
1.9 downsj 367: else {
368: if (delta < SECSPERDAY)
369: printf(" (%*.*s)\n",
370: timesize, timesize,
371: asctime(gmtime(&delta))+11);
372: else
1.39 guenther 373: printf(" (%lld+%*.*s)\n",
374: (long long)delta / SECSPERDAY,
1.9 downsj 375: timesize, timesize,
376: asctime(gmtime(&delta))+11);
377: }
378: if (calculate)
379: total += delta;
1.1 deraadt 380: }
1.33 deraadt 381: if (maxrec != -1 && !--maxrec) {
382: close(wfd);
1.1 deraadt 383: return;
1.33 deraadt 384: }
1.1 deraadt 385: }
386: T->logout = bp->ut_time;
387: }
1.9 downsj 388: }
1.33 deraadt 389: close(wfd);
1.9 downsj 390: if (calculate) {
391: if ((total / SECSPERDAY) > 0) {
392: int days = (total / SECSPERDAY);
393: total -= (days * SECSPERDAY);
394:
395: printf("\nTotal time: %d days, %*.*s\n",
1.28 deraadt 396: days, timesize, timesize,
397: asctime(gmtime(&total))+11);
1.9 downsj 398: } else
399: printf("\nTotal time: %*.*s\n",
1.28 deraadt 400: timesize, timesize,
401: asctime(gmtime(&total))+11);
1.1 deraadt 402: }
403: ct = ctime(&buf[0].ut_time);
1.37 lum 404: printf("\n%s begins %10.10s %*.*s %4.4s\n", basename(file), ct,
405: timesize, timesize, ct + 11, ct + 20);
1.1 deraadt 406: }
407:
408: /*
1.33 deraadt 409: * see if want this entry
1.1 deraadt 410: */
411: int
1.27 deraadt 412: want(struct utmp *bp, int check)
1.1 deraadt 413: {
1.33 deraadt 414: struct arg *step;
1.1 deraadt 415:
1.15 deraadt 416: if (check) {
1.1 deraadt 417: /*
1.42 okan 418: * some entries, such as ftp and uucp, will
419: * include process name plus id; exclude entries
420: * that start with 'console' and 'tty' from
421: * having the process id stripped.
1.1 deraadt 422: */
1.42 okan 423: if ((strncmp(bp->ut_line, "console", strlen("console")) != 0) &&
424: (strncmp(bp->ut_line, "tty", strlen("tty")) != 0)) {
425: char *s;
426: for (s = bp->ut_line;
427: *s != '\0' && !isdigit((unsigned char)*s); s++)
428: ;
429: *s = '\0';
430: }
1.15 deraadt 431: }
1.5 jdm 432:
1.18 mickey 433: if (snaptime) /* if snaptime is set, return NO */
1.5 jdm 434: return (NO);
435:
1.1 deraadt 436: if (!arglist)
437: return (YES);
438:
439: for (step = arglist; step; step = step->next)
1.33 deraadt 440: switch (step->type) {
1.1 deraadt 441: case HOST_TYPE:
442: if (!strncasecmp(step->name, bp->ut_host, UT_HOSTSIZE))
443: return (YES);
444: break;
445: case TTY_TYPE:
446: if (!strncmp(step->name, bp->ut_line, UT_LINESIZE))
447: return (YES);
448: break;
449: case USER_TYPE:
450: if (!strncmp(step->name, bp->ut_name, UT_NAMESIZE))
451: return (YES);
452: break;
1.5 jdm 453: }
454:
1.1 deraadt 455: return (NO);
456: }
457:
458: /*
1.33 deraadt 459: * add an entry to a linked list of arguments
1.1 deraadt 460: */
461: void
1.27 deraadt 462: addarg(int type, char *arg)
1.1 deraadt 463: {
1.33 deraadt 464: struct arg *cur;
1.1 deraadt 465:
1.33 deraadt 466: if (!(cur = (struct arg *)malloc((u_int)sizeof(struct arg))))
1.1 deraadt 467: err(1, "malloc failure");
468: cur->next = arglist;
469: cur->type = type;
470: cur->name = arg;
471: arglist = cur;
472: }
473:
474: /*
1.33 deraadt 475: * add an entry to a linked list of ttys
1.1 deraadt 476: */
1.33 deraadt 477: struct ttytab *
1.27 deraadt 478: addtty(char *ttyname)
1.1 deraadt 479: {
1.33 deraadt 480: struct ttytab *cur;
1.1 deraadt 481:
1.33 deraadt 482: if (!(cur = (struct ttytab *)malloc((u_int)sizeof(struct ttytab))))
1.1 deraadt 483: err(1, "malloc failure");
484: cur->next = ttylist;
485: cur->logout = currentout;
486: memmove(cur->tty, ttyname, UT_LINESIZE);
487: return (ttylist = cur);
488: }
489:
490: /*
1.33 deraadt 491: * convert the hostname to search pattern; if the supplied host name
492: * has a domain attached that is the same as the current domain, rip
493: * off the domain suffix since that's what login(1) does.
1.1 deraadt 494: */
495: void
1.27 deraadt 496: hostconv(char *arg)
1.1 deraadt 497: {
1.45 deraadt 498: static char *hostdot, name[HOST_NAME_MAX+1];
1.1 deraadt 499: static int first = 1;
500: char *argdot;
501:
502: if (!(argdot = strchr(arg, '.')))
503: return;
504: if (first) {
505: first = 0;
506: if (gethostname(name, sizeof(name)))
507: err(1, "gethostname");
508: hostdot = strchr(name, '.');
509: }
510: if (hostdot && !strcasecmp(hostdot, argdot))
511: *argdot = '\0';
512: }
513:
514: /*
1.33 deraadt 515: * convert tty to correct name.
1.1 deraadt 516: */
517: char *
1.27 deraadt 518: ttyconv(char *arg)
1.1 deraadt 519: {
1.33 deraadt 520: size_t len = 8;
1.1 deraadt 521: char *mval;
522:
523: /*
524: * kludge -- we assume that all tty's end with
525: * a two character suffix.
526: */
527: if (strlen(arg) == 2) {
528: /* either 6 for "ttyxx" or 8 for "console" */
1.21 deraadt 529: if (!(mval = malloc(len)))
1.1 deraadt 530: err(1, "malloc failure");
531: if (!strcmp(arg, "co"))
1.21 deraadt 532: (void)strlcpy(mval, "console", len);
533: else
534: snprintf(mval, len, "tty%s", arg);
1.1 deraadt 535: return (mval);
536: }
537: if (!strncmp(arg, _PATH_DEV, sizeof(_PATH_DEV) - 1))
538: return (arg + 5);
539: return (arg);
540: }
1.4 jdm 541:
1.18 mickey 542: /*
543: * Convert the snapshot time in command line given in the format
1.23 deraadt 544: * [[[CC]YY]MMDD]hhmm[.SS]] to a time_t.
1.18 mickey 545: * Derived from atime_arg1() in usr.bin/touch/touch.c
1.4 jdm 546: */
547: time_t
1.27 deraadt 548: dateconv(char *arg)
1.4 jdm 549: {
1.7 deraadt 550: time_t timet;
551: struct tm *t;
552: int yearset;
553: char *p;
554:
555: /* Start with the current time. */
556: if (time(&timet) < 0)
557: err(1, "time");
558: if ((t = localtime(&timet)) == NULL)
559: err(1, "localtime");
560:
1.23 deraadt 561: /* [[[CC]YY]MMDD]hhmm[.SS] */
1.7 deraadt 562: if ((p = strchr(arg, '.')) == NULL)
1.18 mickey 563: t->tm_sec = 0; /* Seconds defaults to 0. */
1.7 deraadt 564: else {
565: if (strlen(p + 1) != 2)
566: goto terr;
567: *p++ = '\0';
568: t->tm_sec = ATOI2(p);
569: }
570:
571: yearset = 0;
572: switch (strlen(arg)) {
1.22 deraadt 573: case 12: /* CCYYMMDDhhmm */
1.7 deraadt 574: t->tm_year = ATOI2(arg);
575: t->tm_year *= 100;
576: yearset = 1;
1.29 otto 577: /* FALLTHROUGH */
1.22 deraadt 578: case 10: /* YYMMDDhhmm */
1.7 deraadt 579: if (yearset) {
580: yearset = ATOI2(arg);
581: t->tm_year += yearset;
582: } else {
583: yearset = ATOI2(arg);
584: if (yearset < 69)
585: t->tm_year = yearset + 2000;
586: else
587: t->tm_year = yearset + 1900;
588: }
1.28 deraadt 589: t->tm_year -= 1900; /* Convert to UNIX time. */
1.7 deraadt 590: /* FALLTHROUGH */
591: case 8: /* MMDDhhmm */
592: t->tm_mon = ATOI2(arg);
1.18 mickey 593: --t->tm_mon; /* Convert from 01-12 to 00-11 */
1.7 deraadt 594: t->tm_mday = ATOI2(arg);
595: t->tm_hour = ATOI2(arg);
596: t->tm_min = ATOI2(arg);
597: break;
598: case 4: /* hhmm */
599: t->tm_hour = ATOI2(arg);
600: t->tm_min = ATOI2(arg);
601: break;
602: default:
603: goto terr;
604: }
1.18 mickey 605: t->tm_isdst = -1; /* Figure out DST. */
1.7 deraadt 606: timet = mktime(t);
607: if (timet == -1)
1.28 deraadt 608: terr: errx(1, "out of range or illegal time specification: "
609: "[[[CC]YY]MMDD]hhmm[.SS]");
1.22 deraadt 610: return (timet);
1.4 jdm 611: }
612:
1.1 deraadt 613:
614: /*
1.33 deraadt 615: * on interrupt, we inform the user how far we've gotten
1.1 deraadt 616: */
617: void
1.27 deraadt 618: onintr(int signo)
1.1 deraadt 619: {
1.47 deraadt 620: char str[1024], *ct, ctbuf[26];
1.1 deraadt 621:
1.47 deraadt 622: ct = ctime_r(&buf[0].ut_time, ctbuf);
1.25 deraadt 623: snprintf(str, sizeof str, "\ninterrupted %10.10s %8.8s \n",
624: ct, ct + 11);
625: write(STDOUT_FILENO, str, strlen(str));
1.1 deraadt 626: if (signo == SIGINT)
1.25 deraadt 627: _exit(1);
1.22 deraadt 628: }
629:
630: void
631: usage(void)
632: {
633: extern char *__progname;
634:
635: fprintf(stderr,
1.34 jmc 636: "usage: %s [-csT] [-d date] [-f file] [-h host]"
637: " [-n number] [-t tty] [user ...]\n", __progname);
1.22 deraadt 638: exit(1);
1.1 deraadt 639: }
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