Annotation of src/usr.bin/last/last.c, Revision 1.25
1.25 ! deraadt 1: /* $OpenBSD: last.c,v 1.24 2003/04/25 07:13:55 tedu 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.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by the University of
19: * California, Berkeley and its contributors.
20: * 4. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: */
36:
37: #ifndef lint
38: static char copyright[] =
39: "@(#) Copyright (c) 1987, 1993, 1994\n\
40: The Regents of the University of California. All rights reserved.\n";
41: #endif /* not lint */
42:
43: #ifndef lint
44: #if 0
45: static char sccsid[] = "@(#)last.c 8.2 (Berkeley) 4/2/94";
46: #endif
1.25 ! deraadt 47: static char rcsid[] = "$OpenBSD: last.c,v 1.24 2003/04/25 07:13:55 tedu Exp $";
1.1 deraadt 48: #endif /* not lint */
49:
50: #include <sys/param.h>
51: #include <sys/stat.h>
52:
53: #include <err.h>
54: #include <fcntl.h>
55: #include <paths.h>
56: #include <signal.h>
57: #include <stdio.h>
58: #include <stdlib.h>
59: #include <string.h>
60: #include <time.h>
61: #include <tzfile.h>
62: #include <unistd.h>
63: #include <utmp.h>
64:
65: #define NO 0 /* false/no */
66: #define YES 1 /* true/yes */
1.18 mickey 67: #define ATOI2(ar) ((ar)[0] - '0') * 10 + ((ar)[1] - '0'); (ar) += 2;
1.1 deraadt 68:
69: static struct utmp buf[1024]; /* utmp read buffer */
70:
71: typedef struct arg {
72: char *name; /* argument */
73: #define HOST_TYPE -2
74: #define TTY_TYPE -3
75: #define USER_TYPE -4
76: int type; /* type of arg */
77: struct arg *next; /* linked list pointer */
78: } ARG;
79: ARG *arglist; /* head of linked list */
80:
81: typedef struct ttytab {
82: time_t logout; /* log out time */
83: char tty[UT_LINESIZE + 1]; /* terminal name */
84: struct ttytab *next; /* linked list pointer */
85: } TTY;
86: TTY *ttylist; /* head of linked list */
87:
88: static time_t currentout; /* current logout value */
89: static long maxrec; /* records to display */
90: static char *file = _PATH_WTMP; /* wtmp file */
1.6 mickey 91: static int fulltime = 0; /* Display seconds? */
1.7 deraadt 92: static time_t snaptime; /* if != 0, we will only
93: * report users logged in
94: * at this snapshot time
1.4 jdm 95: */
1.9 downsj 96: static int calculate = 0;
97: static int seconds = 0;
1.1 deraadt 98:
1.19 millert 99: void addarg(int, char *);
100: TTY *addtty(char *);
101: void hostconv(char *);
102: void onintr(int);
103: char *ttyconv(char *);
104: time_t dateconv(char *);
105: int want(struct utmp *, int);
106: void wtmp(void);
107: void checkargs(void);
1.22 deraadt 108: void usage(void);
1.1 deraadt 109:
1.13 deraadt 110: #define NAME_WIDTH 8
1.14 fgsch 111: #define HOST_WIDTH 24
1.13 deraadt 112:
1.1 deraadt 113: int
114: main(argc, argv)
115: int argc;
116: char *argv[];
117: {
118: extern int optind;
119: extern char *optarg;
120: int ch;
121: char *p;
122:
123: maxrec = -1;
1.4 jdm 124: snaptime = 0;
1.9 downsj 125: while ((ch = getopt(argc, argv, "0123456789cf:h:st:d:T")) != -1)
1.1 deraadt 126: switch (ch) {
127: case '0': case '1': case '2': case '3': case '4':
128: case '5': case '6': case '7': case '8': case '9':
129: /*
130: * kludge: last was originally designed to take
131: * a number after a dash.
132: */
133: if (maxrec == -1) {
134: p = argv[optind - 1];
135: if (p[0] == '-' && p[1] == ch && !p[2])
136: maxrec = atol(++p);
137: else
138: maxrec = atol(argv[optind] + 1);
139: if (!maxrec)
140: exit(0);
141: }
142: break;
1.9 downsj 143: case 'c':
144: calculate++;
145: break;
1.1 deraadt 146: case 'f':
147: file = optarg;
148: break;
149: case 'h':
150: hostconv(optarg);
151: addarg(HOST_TYPE, optarg);
152: break;
1.9 downsj 153: case 's':
154: seconds++;
155: break;
1.1 deraadt 156: case 't':
157: addarg(TTY_TYPE, ttyconv(optarg));
158: break;
1.4 jdm 159: case 'd':
160: snaptime = dateconv(optarg);
161: break;
1.6 mickey 162: case 'T':
1.9 downsj 163: fulltime = 1;
1.6 mickey 164: break;
1.1 deraadt 165: case '?':
166: default:
1.22 deraadt 167: usage();
1.1 deraadt 168: }
169:
170: if (argc) {
171: setlinebuf(stdout);
172: for (argv += optind; *argv; ++argv) {
173: #define COMPATIBILITY
174: #ifdef COMPATIBILITY
175: /* code to allow "last p5" to work */
176: addarg(TTY_TYPE, ttyconv(*argv));
177: #endif
178: addarg(USER_TYPE, *argv);
179: }
180: }
1.18 mickey 181:
1.5 jdm 182: checkargs();
1.1 deraadt 183: wtmp();
184: exit(0);
185: }
186:
187: /*
1.5 jdm 188: * checkargs --
1.18 mickey 189: * if snaptime is set, print warning if usernames, or -t or -h
1.5 jdm 190: * flags are also provided
191: */
192:
193: void
194: checkargs()
195: {
1.18 mickey 196: ARG *step;
197: int ttyflag = 0;
1.5 jdm 198:
1.18 mickey 199: if (!snaptime)
1.5 jdm 200: return;
1.18 mickey 201:
1.5 jdm 202: if (!arglist)
203: return;
204:
205: for (step = arglist; step; step = step->next)
206: switch (step->type) {
207: case HOST_TYPE:
1.7 deraadt 208: (void)fprintf(stderr,
209: "Warning: Ignoring hostname flag\n");
1.5 jdm 210: break;
211: case TTY_TYPE:
1.18 mickey 212: if (!ttyflag) { /* don't print this twice */
1.7 deraadt 213: (void)fprintf(stderr,
214: "Warning: Ignoring tty flag\n");
1.5 jdm 215: ttyflag = 1;
216: }
217: break;
218: case USER_TYPE:
1.7 deraadt 219: (void)fprintf(stderr,
220: "Warning: Ignoring username[s]\n");
1.5 jdm 221: break;
222: default:
1.20 millert 223: break;
1.5 jdm 224: /* PRINT NOTHING */
225: }
1.18 mickey 226: }
1.5 jdm 227:
228:
229: /*
1.1 deraadt 230: * wtmp --
231: * read through the wtmp file
232: */
233: void
234: wtmp()
235: {
1.6 mickey 236: struct utmp *bp; /* current structure */
237: TTY *T; /* tty list entry */
238: struct stat stb; /* stat of file for size */
1.8 deraadt 239: time_t delta; /* time difference */
1.9 downsj 240: time_t total;
1.8 deraadt 241: off_t bl;
1.6 mickey 242: int timesize; /* how long time string gonna be */
1.1 deraadt 243: int bytes, wfd;
244: char *ct, *crmsg;
1.18 mickey 245: int snapfound = 0; /* found snapshot entry? */
1.1 deraadt 246: if ((wfd = open(file, O_RDONLY, 0)) < 0 || fstat(wfd, &stb) == -1)
247: err(1, "%s", file);
248: bl = (stb.st_size + sizeof(buf) - 1) / sizeof(buf);
249:
1.6 mickey 250: if (fulltime)
251: timesize = 8; /* HH:MM:SS */
252: else
253: timesize = 5; /* HH:MM */
254:
1.1 deraadt 255: (void)time(&buf[0].ut_time);
256: (void)signal(SIGINT, onintr);
257: (void)signal(SIGQUIT, onintr);
258:
259: while (--bl >= 0) {
1.11 millert 260: if (lseek(wfd, bl * sizeof(buf), SEEK_SET) == -1 ||
1.1 deraadt 261: (bytes = read(wfd, buf, sizeof(buf))) == -1)
262: err(1, "%s", file);
263: for (bp = &buf[bytes / sizeof(buf[0]) - 1]; bp >= buf; --bp) {
264: /*
265: * if the terminal line is '~', the machine stopped.
266: * see utmp(5) for more info.
267: */
268: if (bp->ut_line[0] == '~' && !bp->ut_line[1]) {
269: /* everybody just logged out */
270: for (T = ttylist; T; T = T->next)
271: T->logout = -bp->ut_time;
272: currentout = -bp->ut_time;
273: crmsg = strncmp(bp->ut_name, "shutdown",
274: UT_NAMESIZE) ? "crash" : "shutdown";
1.18 mickey 275: /*
276: * if we're in snapshot mode, we want to
1.4 jdm 277: * exit if this shutdown/reboot appears
278: * while we we are tracking the active
279: * range
280: */
281: if (snaptime && snapfound)
282: return;
1.18 mickey 283: /*
1.4 jdm 284: * don't print shutdown/reboot entries
1.18 mickey 285: * unless flagged for
286: */
1.5 jdm 287: if (want(bp, NO)) {
1.9 downsj 288: if (seconds) {
1.15 deraadt 289: printf("%-*.*s %-*.*s %-*.*s %ld \n",
290: NAME_WIDTH, UT_NAMESIZE,
291: bp->ut_name, UT_LINESIZE,
292: UT_LINESIZE, bp->ut_line,
293: HOST_WIDTH, UT_HOSTSIZE,
1.16 pvalchev 294: bp->ut_host, (long)bp->ut_time);
1.9 downsj 295: } else {
296: ct = ctime(&bp->ut_time);
1.15 deraadt 297: printf("%-*.*s %-*.*s %-*.*s %10.10s %*.*s \n",
298: NAME_WIDTH, UT_NAMESIZE,
299: bp->ut_name, UT_LINESIZE,
300: UT_LINESIZE, bp->ut_line,
301: HOST_WIDTH, UT_HOSTSIZE,
302: bp->ut_host, ct, timesize,
303: timesize, ct + 11);
1.9 downsj 304: }
1.1 deraadt 305: if (maxrec != -1 && !--maxrec)
306: return;
307: }
308: continue;
309: }
310: /*
311: * if the line is '{' or '|', date got set; see
312: * utmp(5) for more info.
313: */
314: if ((bp->ut_line[0] == '{' || bp->ut_line[0] == '|')
315: && !bp->ut_line[1]) {
1.5 jdm 316: if (want(bp, NO)) {
1.9 downsj 317: if (seconds) {
318: printf("%-*.*s %-*.*s %-*.*s %ld \n",
1.13 deraadt 319: NAME_WIDTH, UT_NAMESIZE, bp->ut_name,
1.9 downsj 320: UT_LINESIZE, UT_LINESIZE, bp->ut_line,
1.13 deraadt 321: HOST_WIDTH, UT_HOSTSIZE, bp->ut_host,
1.16 pvalchev 322: (long)bp->ut_time);
1.18 mickey 323: } else {
1.9 downsj 324: ct = ctime(&bp->ut_time);
1.6 mickey 325: printf("%-*.*s %-*.*s %-*.*s %10.10s %*.*s \n",
1.13 deraadt 326: NAME_WIDTH, UT_NAMESIZE, bp->ut_name,
1.9 downsj 327: UT_LINESIZE, UT_LINESIZE, bp->ut_line,
1.13 deraadt 328: HOST_WIDTH, UT_HOSTSIZE, bp->ut_host,
1.9 downsj 329: ct, timesize, timesize, ct + 11);
1.18 mickey 330: }
1.1 deraadt 331: if (maxrec && !--maxrec)
332: return;
333: }
334: continue;
335: }
336: /* find associated tty */
337: for (T = ttylist;; T = T->next) {
338: if (!T) {
339: /* add new one */
340: T = addtty(bp->ut_line);
341: break;
342: }
343: if (!strncmp(T->tty, bp->ut_line, UT_LINESIZE))
344: break;
345: }
1.18 mickey 346: /*
1.4 jdm 347: * print record if not in snapshot mode and wanted
348: * or in snapshot mode and in snapshot range
349: */
350: if (bp->ut_name[0] &&
1.5 jdm 351: ((want(bp, YES)) ||
1.18 mickey 352: (bp->ut_time < snaptime &&
1.4 jdm 353: (T->logout > snaptime || !T->logout ||
354: T->logout < 0)))) {
355: snapfound = 1;
1.9 downsj 356: if (seconds) {
357: printf("%-*.*s %-*.*s %-*.*s %ld ",
1.13 deraadt 358: NAME_WIDTH, UT_NAMESIZE, bp->ut_name,
1.9 downsj 359: UT_LINESIZE, UT_LINESIZE, bp->ut_line,
1.13 deraadt 360: HOST_WIDTH, UT_HOSTSIZE, bp->ut_host,
1.16 pvalchev 361: (long)bp->ut_time);
1.9 downsj 362: } else {
363: ct = ctime(&bp->ut_time);
1.6 mickey 364: printf("%-*.*s %-*.*s %-*.*s %10.10s %*.*s ",
1.13 deraadt 365: NAME_WIDTH, UT_NAMESIZE, bp->ut_name,
1.6 mickey 366: UT_LINESIZE, UT_LINESIZE, bp->ut_line,
1.13 deraadt 367: HOST_WIDTH, UT_HOSTSIZE, bp->ut_host,
1.6 mickey 368: ct, timesize, timesize, ct + 11);
1.9 downsj 369: }
1.1 deraadt 370: if (!T->logout)
371: puts(" still logged in");
372: else {
373: if (T->logout < 0) {
374: T->logout = -T->logout;
375: printf("- %s", crmsg);
1.9 downsj 376: } else {
1.18 mickey 377: if (seconds)
1.9 downsj 378: printf("- %ld",
1.16 pvalchev 379: (long)T->logout);
1.9 downsj 380: else
381: printf("- %*.*s",
382: timesize, timesize,
383: ctime(&T->logout)+11);
1.1 deraadt 384: }
385: delta = T->logout - bp->ut_time;
1.9 downsj 386: if (seconds)
1.16 pvalchev 387: printf(" (%ld)\n", (long)delta);
1.9 downsj 388: else {
389: if (delta < SECSPERDAY)
390: printf(" (%*.*s)\n",
391: timesize, timesize,
392: asctime(gmtime(&delta))+11);
393: else
394: printf(" (%ld+%*.*s)\n",
395: delta / SECSPERDAY,
396: timesize, timesize,
397: asctime(gmtime(&delta))+11);
398: }
399: if (calculate)
400: total += delta;
1.1 deraadt 401: }
402: if (maxrec != -1 && !--maxrec)
403: return;
404: }
405: T->logout = bp->ut_time;
406: }
1.9 downsj 407: }
408: if (calculate) {
409: if ((total / SECSPERDAY) > 0) {
410: int days = (total / SECSPERDAY);
411: total -= (days * SECSPERDAY);
412:
413: printf("\nTotal time: %d days, %*.*s\n",
414: days, timesize, timesize,
415: asctime(gmtime(&total))+11);
416: } else
417: printf("\nTotal time: %*.*s\n",
418: timesize, timesize,
419: asctime(gmtime(&total))+11);
1.1 deraadt 420: }
421: ct = ctime(&buf[0].ut_time);
1.10 deraadt 422: printf("\nwtmp begins %10.10s %*.*s %4.4s\n", ct, timesize, timesize,
423: ct + 11, ct + 20);
1.1 deraadt 424: }
425:
426: /*
427: * want --
428: * see if want this entry
429: */
430: int
431: want(bp, check)
432: struct utmp *bp;
433: int check;
434: {
435: ARG *step;
436:
1.15 deraadt 437: if (check) {
1.1 deraadt 438: /*
439: * when uucp and ftp log in over a network, the entry in
440: * the utmp file is the name plus their process id. See
441: * etc/ftpd.c and usr.bin/uucp/uucpd.c for more information.
442: */
443: if (!strncmp(bp->ut_line, "ftp", sizeof("ftp") - 1))
444: bp->ut_line[3] = '\0';
445: else if (!strncmp(bp->ut_line, "uucp", sizeof("uucp") - 1))
446: bp->ut_line[4] = '\0';
1.15 deraadt 447: }
1.5 jdm 448:
1.18 mickey 449: if (snaptime) /* if snaptime is set, return NO */
1.5 jdm 450: return (NO);
451:
1.1 deraadt 452: if (!arglist)
453: return (YES);
454:
455: for (step = arglist; step; step = step->next)
456: switch(step->type) {
457: case HOST_TYPE:
458: if (!strncasecmp(step->name, bp->ut_host, UT_HOSTSIZE))
459: return (YES);
460: break;
461: case TTY_TYPE:
462: if (!strncmp(step->name, bp->ut_line, UT_LINESIZE))
463: return (YES);
464: break;
465: case USER_TYPE:
466: if (!strncmp(step->name, bp->ut_name, UT_NAMESIZE))
467: return (YES);
468: break;
1.5 jdm 469: }
470:
1.1 deraadt 471: return (NO);
472: }
473:
474: /*
475: * addarg --
476: * add an entry to a linked list of arguments
477: */
478: void
479: addarg(type, arg)
480: int type;
481: char *arg;
482: {
483: ARG *cur;
484:
485: if (!(cur = (ARG *)malloc((u_int)sizeof(ARG))))
486: err(1, "malloc failure");
487: cur->next = arglist;
488: cur->type = type;
489: cur->name = arg;
490: arglist = cur;
491: }
492:
493: /*
494: * addtty --
495: * add an entry to a linked list of ttys
496: */
497: TTY *
498: addtty(ttyname)
499: char *ttyname;
500: {
501: TTY *cur;
502:
503: if (!(cur = (TTY *)malloc((u_int)sizeof(TTY))))
504: err(1, "malloc failure");
505: cur->next = ttylist;
506: cur->logout = currentout;
507: memmove(cur->tty, ttyname, UT_LINESIZE);
508: return (ttylist = cur);
509: }
510:
511: /*
512: * hostconv --
513: * convert the hostname to search pattern; if the supplied host name
514: * has a domain attached that is the same as the current domain, rip
515: * off the domain suffix since that's what login(1) does.
516: */
517: void
518: hostconv(arg)
519: char *arg;
520: {
521: static int first = 1;
522: static char *hostdot, name[MAXHOSTNAMELEN];
523: char *argdot;
524:
525: if (!(argdot = strchr(arg, '.')))
526: return;
527: if (first) {
528: first = 0;
529: if (gethostname(name, sizeof(name)))
530: err(1, "gethostname");
531: hostdot = strchr(name, '.');
532: }
533: if (hostdot && !strcasecmp(hostdot, argdot))
534: *argdot = '\0';
535: }
536:
537: /*
538: * ttyconv --
539: * convert tty to correct name.
540: */
541: char *
542: ttyconv(arg)
543: char *arg;
544: {
545: char *mval;
1.21 deraadt 546: size_t len = 8;
1.1 deraadt 547:
548: /*
549: * kludge -- we assume that all tty's end with
550: * a two character suffix.
551: */
552: if (strlen(arg) == 2) {
553: /* either 6 for "ttyxx" or 8 for "console" */
1.21 deraadt 554: if (!(mval = malloc(len)))
1.1 deraadt 555: err(1, "malloc failure");
556: if (!strcmp(arg, "co"))
1.21 deraadt 557: (void)strlcpy(mval, "console", len);
558: else
559: snprintf(mval, len, "tty%s", arg);
1.1 deraadt 560: return (mval);
561: }
562: if (!strncmp(arg, _PATH_DEV, sizeof(_PATH_DEV) - 1))
563: return (arg + 5);
564: return (arg);
565: }
1.4 jdm 566:
1.18 mickey 567: /*
1.4 jdm 568: * dateconv --
1.18 mickey 569: * Convert the snapshot time in command line given in the format
1.23 deraadt 570: * [[[CC]YY]MMDD]hhmm[.SS]] to a time_t.
1.18 mickey 571: * Derived from atime_arg1() in usr.bin/touch/touch.c
1.4 jdm 572: */
573: time_t
574: dateconv(arg)
1.7 deraadt 575: char *arg;
1.4 jdm 576: {
1.7 deraadt 577: time_t timet;
578: struct tm *t;
579: int yearset;
580: char *p;
581:
582: /* Start with the current time. */
583: if (time(&timet) < 0)
584: err(1, "time");
585: if ((t = localtime(&timet)) == NULL)
586: err(1, "localtime");
587:
1.23 deraadt 588: /* [[[CC]YY]MMDD]hhmm[.SS] */
1.7 deraadt 589: if ((p = strchr(arg, '.')) == NULL)
1.18 mickey 590: t->tm_sec = 0; /* Seconds defaults to 0. */
1.7 deraadt 591: else {
592: if (strlen(p + 1) != 2)
593: goto terr;
594: *p++ = '\0';
595: t->tm_sec = ATOI2(p);
596: }
597:
598: yearset = 0;
599: switch (strlen(arg)) {
1.22 deraadt 600: case 12: /* CCYYMMDDhhmm */
1.7 deraadt 601: t->tm_year = ATOI2(arg);
602: t->tm_year *= 100;
603: yearset = 1;
604: /* FALLTHOUGH */
1.22 deraadt 605: case 10: /* YYMMDDhhmm */
1.7 deraadt 606: if (yearset) {
607: yearset = ATOI2(arg);
608: t->tm_year += yearset;
609: } else {
610: yearset = ATOI2(arg);
611: if (yearset < 69)
612: t->tm_year = yearset + 2000;
613: else
614: t->tm_year = yearset + 1900;
615: }
616: t->tm_year -= 1900; /* Convert to UNIX time. */
617: /* FALLTHROUGH */
618: case 8: /* MMDDhhmm */
619: t->tm_mon = ATOI2(arg);
1.18 mickey 620: --t->tm_mon; /* Convert from 01-12 to 00-11 */
1.7 deraadt 621: t->tm_mday = ATOI2(arg);
622: t->tm_hour = ATOI2(arg);
623: t->tm_min = ATOI2(arg);
624: break;
625: case 4: /* hhmm */
626: t->tm_hour = ATOI2(arg);
627: t->tm_min = ATOI2(arg);
628: break;
629: default:
630: goto terr;
631: }
1.18 mickey 632: t->tm_isdst = -1; /* Figure out DST. */
1.7 deraadt 633: timet = mktime(t);
634: if (timet == -1)
635: terr: errx(1,
1.24 tedu 636: "out of range or illegal time specification: [[[CC]YY]MMDD]hhmm[.SS]");
1.22 deraadt 637: return (timet);
1.4 jdm 638: }
639:
1.1 deraadt 640:
641: /*
642: * onintr --
643: * on interrupt, we inform the user how far we've gotten
644: */
645: void
646: onintr(signo)
647: int signo;
648: {
1.25 ! deraadt 649: char str[1024], *ct;
1.1 deraadt 650:
1.25 ! deraadt 651: ct = ctime(&buf[0].ut_time); /* XXX signal race */
! 652: snprintf(str, sizeof str, "\ninterrupted %10.10s %8.8s \n",
! 653: ct, ct + 11);
! 654: write(STDOUT_FILENO, str, strlen(str));
1.1 deraadt 655: if (signo == SIGINT)
1.25 ! deraadt 656: _exit(1);
1.22 deraadt 657: }
658:
659: void
660: usage(void)
661: {
662: extern char *__progname;
663:
664: fprintf(stderr,
665: "usage: %s [-#] [-csT] [-f file] [-t tty] [-h host]"
1.23 deraadt 666: " [-d [[[CC]YY]MMDD]hhmm[.SS]] [user ...]\n", __progname);
1.22 deraadt 667: exit(1);
1.1 deraadt 668: }