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1.35 ! chl 1: /* $OpenBSD: last.c,v 1.34 2006/10/27 07:16:25 jmc 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: #ifndef lint
34: static char copyright[] =
35: "@(#) Copyright (c) 1987, 1993, 1994\n\
36: The Regents of the University of California. All rights reserved.\n";
37: #endif /* not lint */
38:
39: #ifndef lint
40: #if 0
41: static char sccsid[] = "@(#)last.c 8.2 (Berkeley) 4/2/94";
42: #endif
1.35 ! chl 43: static char rcsid[] = "$OpenBSD: last.c,v 1.34 2006/10/27 07:16:25 jmc Exp $";
1.1 deraadt 44: #endif /* not lint */
45:
46: #include <sys/param.h>
47: #include <sys/stat.h>
48:
1.35 ! chl 49: #include <ctype.h>
1.1 deraadt 50: #include <err.h>
51: #include <fcntl.h>
52: #include <paths.h>
53: #include <signal.h>
54: #include <stdio.h>
55: #include <stdlib.h>
56: #include <string.h>
57: #include <time.h>
58: #include <tzfile.h>
59: #include <unistd.h>
60: #include <utmp.h>
61:
62: #define NO 0 /* false/no */
63: #define YES 1 /* true/yes */
1.18 mickey 64: #define ATOI2(ar) ((ar)[0] - '0') * 10 + ((ar)[1] - '0'); (ar) += 2;
1.1 deraadt 65:
66: static struct utmp buf[1024]; /* utmp read buffer */
67:
1.33 deraadt 68: struct arg {
1.1 deraadt 69: char *name; /* argument */
70: #define HOST_TYPE -2
71: #define TTY_TYPE -3
72: #define USER_TYPE -4
73: int type; /* type of arg */
1.33 deraadt 74: struct arg *next; /* linked list pointer */
75: } *arglist;
1.1 deraadt 76:
1.33 deraadt 77: struct ttytab {
1.1 deraadt 78: time_t logout; /* log out time */
79: char tty[UT_LINESIZE + 1]; /* terminal name */
1.33 deraadt 80: struct ttytab*next; /* linked list pointer */
81: } *ttylist;
1.1 deraadt 82:
83: static time_t currentout; /* current logout value */
1.33 deraadt 84: static long maxrec = -1; /* records to display */
1.1 deraadt 85: static char *file = _PATH_WTMP; /* wtmp file */
1.6 mickey 86: static int fulltime = 0; /* Display seconds? */
1.33 deraadt 87: static time_t snaptime = 0; /* report only at this time */
88: static int calculate = 0;
89: static int seconds = 0;
1.1 deraadt 90:
1.19 millert 91: void addarg(int, char *);
1.33 deraadt 92: struct ttytab *addtty(char *);
1.19 millert 93: void hostconv(char *);
94: void onintr(int);
95: char *ttyconv(char *);
96: time_t dateconv(char *);
97: int want(struct utmp *, int);
98: void wtmp(void);
99: void checkargs(void);
1.22 deraadt 100: void usage(void);
1.1 deraadt 101:
1.28 deraadt 102: #define NAME_WIDTH 9
1.14 fgsch 103: #define HOST_WIDTH 24
1.13 deraadt 104:
1.1 deraadt 105: int
1.27 deraadt 106: main(int argc, char *argv[])
1.1 deraadt 107: {
1.31 millert 108: const char *errstr;
1.33 deraadt 109: int ch, lastch = '\0', newarg = 1, prevoptind = 1;
1.1 deraadt 110:
1.32 millert 111: while ((ch = getopt(argc, argv, "0123456789cf:h:n:st:d:T")) != -1) {
1.1 deraadt 112: switch (ch) {
113: case '0': case '1': case '2': case '3': case '4':
114: case '5': case '6': case '7': case '8': case '9':
115: /*
116: * kludge: last was originally designed to take
117: * a number after a dash.
118: */
1.32 millert 119: if (newarg || !isdigit(lastch))
120: maxrec = 0;
121: else if (maxrec > INT_MAX / 10)
122: usage();
123: maxrec = (maxrec * 10) + (ch - '0');
1.1 deraadt 124: break;
1.9 downsj 125: case 'c':
126: calculate++;
127: break;
1.1 deraadt 128: case 'f':
129: file = optarg;
130: break;
131: case 'h':
132: hostconv(optarg);
133: addarg(HOST_TYPE, optarg);
134: break;
1.31 millert 135: case 'n':
136: maxrec = strtonum(optarg, 0, LONG_MAX, &errstr);
137: if (errstr != NULL)
138: errx(1, "number of lines is %s: %s", errstr,
139: optarg);
140: if (maxrec == 0)
141: exit(0);
142: break;
1.9 downsj 143: case 's':
144: seconds++;
145: break;
1.1 deraadt 146: case 't':
147: addarg(TTY_TYPE, ttyconv(optarg));
148: break;
1.4 jdm 149: case 'd':
150: snaptime = dateconv(optarg);
151: break;
1.6 mickey 152: case 'T':
1.9 downsj 153: fulltime = 1;
1.6 mickey 154: break;
1.1 deraadt 155: default:
1.22 deraadt 156: usage();
1.1 deraadt 157: }
1.32 millert 158: lastch = ch;
159: newarg = optind != prevoptind;
160: prevoptind = optind;
161: }
162: if (maxrec == 0)
163: exit(0);
1.1 deraadt 164:
165: if (argc) {
166: setlinebuf(stdout);
167: for (argv += optind; *argv; ++argv) {
168: #define COMPATIBILITY
169: #ifdef COMPATIBILITY
170: /* code to allow "last p5" to work */
171: addarg(TTY_TYPE, ttyconv(*argv));
172: #endif
173: addarg(USER_TYPE, *argv);
174: }
175: }
1.18 mickey 176:
1.5 jdm 177: checkargs();
1.1 deraadt 178: wtmp();
179: exit(0);
180: }
181:
182: /*
1.33 deraadt 183: * if snaptime is set, print warning if usernames, or -t or -h
184: * flags are also provided
1.5 jdm 185: */
186: void
1.27 deraadt 187: checkargs(void)
1.5 jdm 188: {
1.18 mickey 189: int ttyflag = 0;
1.33 deraadt 190: struct arg *step;
1.5 jdm 191:
1.33 deraadt 192: if (!snaptime || !arglist)
1.5 jdm 193: return;
194:
195: for (step = arglist; step; step = step->next)
196: switch (step->type) {
197: case HOST_TYPE:
1.7 deraadt 198: (void)fprintf(stderr,
199: "Warning: Ignoring hostname flag\n");
1.5 jdm 200: break;
201: case TTY_TYPE:
1.18 mickey 202: if (!ttyflag) { /* don't print this twice */
1.7 deraadt 203: (void)fprintf(stderr,
204: "Warning: Ignoring tty flag\n");
1.5 jdm 205: ttyflag = 1;
206: }
207: break;
208: case USER_TYPE:
1.7 deraadt 209: (void)fprintf(stderr,
210: "Warning: Ignoring username[s]\n");
1.5 jdm 211: break;
212: default:
1.20 millert 213: break;
1.5 jdm 214: /* PRINT NOTHING */
215: }
1.18 mickey 216: }
1.5 jdm 217:
218:
219: /*
1.33 deraadt 220: * read through the wtmp file
1.1 deraadt 221: */
222: void
1.27 deraadt 223: wtmp(void)
1.1 deraadt 224: {
1.33 deraadt 225: time_t delta, total = 0;
226: int timesize, wfd, snapfound = 0;
227: char *ct, *crmsg, tim[40];
228: struct utmp *bp;
229: struct stat stb;
230: ssize_t bytes;
1.8 deraadt 231: off_t bl;
1.33 deraadt 232: struct ttytab *T;
233:
1.1 deraadt 234: if ((wfd = open(file, O_RDONLY, 0)) < 0 || fstat(wfd, &stb) == -1)
235: err(1, "%s", file);
236: bl = (stb.st_size + sizeof(buf) - 1) / sizeof(buf);
237:
1.6 mickey 238: if (fulltime)
239: timesize = 8; /* HH:MM:SS */
240: else
241: timesize = 5; /* HH:MM */
242:
1.1 deraadt 243: (void)time(&buf[0].ut_time);
244: (void)signal(SIGINT, onintr);
245: (void)signal(SIGQUIT, onintr);
246:
247: while (--bl >= 0) {
1.11 millert 248: if (lseek(wfd, bl * sizeof(buf), SEEK_SET) == -1 ||
1.1 deraadt 249: (bytes = read(wfd, buf, sizeof(buf))) == -1)
250: err(1, "%s", file);
251: for (bp = &buf[bytes / sizeof(buf[0]) - 1]; bp >= buf; --bp) {
252: /*
253: * if the terminal line is '~', the machine stopped.
254: * see utmp(5) for more info.
255: */
256: if (bp->ut_line[0] == '~' && !bp->ut_line[1]) {
257: /* everybody just logged out */
258: for (T = ttylist; T; T = T->next)
259: T->logout = -bp->ut_time;
260: currentout = -bp->ut_time;
261: crmsg = strncmp(bp->ut_name, "shutdown",
262: UT_NAMESIZE) ? "crash" : "shutdown";
1.33 deraadt 263:
1.18 mickey 264: /*
265: * if we're in snapshot mode, we want to
1.4 jdm 266: * exit if this shutdown/reboot appears
267: * while we we are tracking the active
268: * range
269: */
1.33 deraadt 270: if (snaptime && snapfound) {
271: close(wfd);
1.4 jdm 272: return;
1.33 deraadt 273: }
274:
1.18 mickey 275: /*
1.4 jdm 276: * don't print shutdown/reboot entries
1.18 mickey 277: * unless flagged for
278: */
1.5 jdm 279: if (want(bp, NO)) {
1.9 downsj 280: if (seconds) {
1.33 deraadt 281: snprintf(tim, sizeof tim, "%ld",
282: (long)bp->ut_time);
1.9 downsj 283: } else {
284: ct = ctime(&bp->ut_time);
1.33 deraadt 285: snprintf(tim, sizeof tim,
286: "%10.10s %*.*s", ct,
287: timesize, timesize, ct + 11);
1.9 downsj 288: }
1.33 deraadt 289: printf("%-*.*s %-*.*s %-*.*s %s \n",
290: NAME_WIDTH, UT_NAMESIZE, bp->ut_name,
291: UT_LINESIZE, UT_LINESIZE, bp->ut_line,
292: HOST_WIDTH, UT_HOSTSIZE, bp->ut_host,
293: tim);
294:
295: if (maxrec != -1 && !--maxrec) {
296: close(wfd);
1.1 deraadt 297: return;
1.33 deraadt 298: }
1.1 deraadt 299: }
300: continue;
301: }
1.33 deraadt 302:
1.1 deraadt 303: /*
304: * if the line is '{' or '|', date got set; see
305: * utmp(5) for more info.
306: */
1.33 deraadt 307: if ((bp->ut_line[0] == '{' || bp->ut_line[0] == '|') &&
308: !bp->ut_line[1]) {
1.5 jdm 309: if (want(bp, NO)) {
1.9 downsj 310: if (seconds) {
1.33 deraadt 311: snprintf(tim, sizeof tim, "%ld",
1.28 deraadt 312: (long)bp->ut_time);
1.18 mickey 313: } else {
1.9 downsj 314: ct = ctime(&bp->ut_time);
1.33 deraadt 315: snprintf(tim, sizeof tim,
316: "%10.10s %*.*s", ct,
317: timesize, timesize, ct + 11);
1.18 mickey 318: }
1.33 deraadt 319: printf("%-*.*s %-*.*s %-*.*s %s \n",
320: NAME_WIDTH, UT_NAMESIZE, bp->ut_name,
321: UT_LINESIZE, UT_LINESIZE, bp->ut_line,
322: HOST_WIDTH, UT_HOSTSIZE, bp->ut_host,
323: tim);
324:
325: if (maxrec && !--maxrec) {
326: close(wfd);
1.1 deraadt 327: return;
1.33 deraadt 328: }
1.1 deraadt 329: }
330: continue;
331: }
1.33 deraadt 332:
1.1 deraadt 333: /* find associated tty */
334: for (T = ttylist;; T = T->next) {
335: if (!T) {
336: /* add new one */
337: T = addtty(bp->ut_line);
338: break;
339: }
340: if (!strncmp(T->tty, bp->ut_line, UT_LINESIZE))
341: break;
342: }
1.33 deraadt 343:
1.18 mickey 344: /*
1.4 jdm 345: * print record if not in snapshot mode and wanted
346: * or in snapshot mode and in snapshot range
347: */
348: if (bp->ut_name[0] &&
1.28 deraadt 349: ((want(bp, YES)) || (bp->ut_time < snaptime &&
350: (T->logout > snaptime || !T->logout ||
351: T->logout < 0)))) {
1.4 jdm 352: snapfound = 1;
1.9 downsj 353: if (seconds) {
1.33 deraadt 354: snprintf(tim, sizeof tim, "%ld",
1.28 deraadt 355: (long)bp->ut_time);
1.9 downsj 356: } else {
357: ct = ctime(&bp->ut_time);
1.33 deraadt 358: snprintf(tim, sizeof tim,
359: "%10.10s %*.*s", ct,
360: timesize, timesize, ct + 11);
1.9 downsj 361: }
1.33 deraadt 362: printf("%-*.*s %-*.*s %-*.*s %s ",
363: NAME_WIDTH, UT_NAMESIZE, bp->ut_name,
364: UT_LINESIZE, UT_LINESIZE, bp->ut_line,
365: HOST_WIDTH, UT_HOSTSIZE, bp->ut_host,
366: tim);
367:
1.1 deraadt 368: if (!T->logout)
369: puts(" still logged in");
370: else {
371: if (T->logout < 0) {
372: T->logout = -T->logout;
373: printf("- %s", crmsg);
1.9 downsj 374: } else {
1.18 mickey 375: if (seconds)
1.9 downsj 376: printf("- %ld",
1.16 pvalchev 377: (long)T->logout);
1.9 downsj 378: else
379: printf("- %*.*s",
380: timesize, timesize,
381: ctime(&T->logout)+11);
1.1 deraadt 382: }
383: delta = T->logout - bp->ut_time;
1.9 downsj 384: if (seconds)
1.16 pvalchev 385: printf(" (%ld)\n", (long)delta);
1.9 downsj 386: else {
387: if (delta < SECSPERDAY)
388: printf(" (%*.*s)\n",
389: timesize, timesize,
390: asctime(gmtime(&delta))+11);
391: else
392: printf(" (%ld+%*.*s)\n",
393: delta / SECSPERDAY,
394: timesize, timesize,
395: asctime(gmtime(&delta))+11);
396: }
397: if (calculate)
398: total += delta;
1.1 deraadt 399: }
1.33 deraadt 400: if (maxrec != -1 && !--maxrec) {
401: close(wfd);
1.1 deraadt 402: return;
1.33 deraadt 403: }
1.1 deraadt 404: }
405: T->logout = bp->ut_time;
406: }
1.9 downsj 407: }
1.33 deraadt 408: close(wfd);
1.9 downsj 409: if (calculate) {
410: if ((total / SECSPERDAY) > 0) {
411: int days = (total / SECSPERDAY);
412: total -= (days * SECSPERDAY);
413:
414: printf("\nTotal time: %d days, %*.*s\n",
1.28 deraadt 415: days, timesize, timesize,
416: asctime(gmtime(&total))+11);
1.9 downsj 417: } else
418: printf("\nTotal time: %*.*s\n",
1.28 deraadt 419: timesize, timesize,
420: asctime(gmtime(&total))+11);
1.1 deraadt 421: }
422: ct = ctime(&buf[0].ut_time);
1.10 deraadt 423: printf("\nwtmp begins %10.10s %*.*s %4.4s\n", ct, timesize, timesize,
424: ct + 11, ct + 20);
1.1 deraadt 425: }
426:
427: /*
1.33 deraadt 428: * see if want this entry
1.1 deraadt 429: */
430: int
1.27 deraadt 431: want(struct utmp *bp, int check)
1.1 deraadt 432: {
1.33 deraadt 433: struct arg *step;
1.1 deraadt 434:
1.15 deraadt 435: if (check) {
1.1 deraadt 436: /*
437: * when uucp and ftp log in over a network, the entry in
438: * the utmp file is the name plus their process id. See
439: * etc/ftpd.c and usr.bin/uucp/uucpd.c for more information.
440: */
441: if (!strncmp(bp->ut_line, "ftp", sizeof("ftp") - 1))
442: bp->ut_line[3] = '\0';
443: else if (!strncmp(bp->ut_line, "uucp", sizeof("uucp") - 1))
444: bp->ut_line[4] = '\0';
1.15 deraadt 445: }
1.5 jdm 446:
1.18 mickey 447: if (snaptime) /* if snaptime is set, return NO */
1.5 jdm 448: return (NO);
449:
1.1 deraadt 450: if (!arglist)
451: return (YES);
452:
453: for (step = arglist; step; step = step->next)
1.33 deraadt 454: switch (step->type) {
1.1 deraadt 455: case HOST_TYPE:
456: if (!strncasecmp(step->name, bp->ut_host, UT_HOSTSIZE))
457: return (YES);
458: break;
459: case TTY_TYPE:
460: if (!strncmp(step->name, bp->ut_line, UT_LINESIZE))
461: return (YES);
462: break;
463: case USER_TYPE:
464: if (!strncmp(step->name, bp->ut_name, UT_NAMESIZE))
465: return (YES);
466: break;
1.5 jdm 467: }
468:
1.1 deraadt 469: return (NO);
470: }
471:
472: /*
1.33 deraadt 473: * add an entry to a linked list of arguments
1.1 deraadt 474: */
475: void
1.27 deraadt 476: addarg(int type, char *arg)
1.1 deraadt 477: {
1.33 deraadt 478: struct arg *cur;
1.1 deraadt 479:
1.33 deraadt 480: if (!(cur = (struct arg *)malloc((u_int)sizeof(struct arg))))
1.1 deraadt 481: err(1, "malloc failure");
482: cur->next = arglist;
483: cur->type = type;
484: cur->name = arg;
485: arglist = cur;
486: }
487:
488: /*
1.33 deraadt 489: * add an entry to a linked list of ttys
1.1 deraadt 490: */
1.33 deraadt 491: struct ttytab *
1.27 deraadt 492: addtty(char *ttyname)
1.1 deraadt 493: {
1.33 deraadt 494: struct ttytab *cur;
1.1 deraadt 495:
1.33 deraadt 496: if (!(cur = (struct ttytab *)malloc((u_int)sizeof(struct ttytab))))
1.1 deraadt 497: err(1, "malloc failure");
498: cur->next = ttylist;
499: cur->logout = currentout;
500: memmove(cur->tty, ttyname, UT_LINESIZE);
501: return (ttylist = cur);
502: }
503:
504: /*
1.33 deraadt 505: * convert the hostname to search pattern; if the supplied host name
506: * has a domain attached that is the same as the current domain, rip
507: * off the domain suffix since that's what login(1) does.
1.1 deraadt 508: */
509: void
1.27 deraadt 510: hostconv(char *arg)
1.1 deraadt 511: {
1.33 deraadt 512: static char *hostdot, name[MAXHOSTNAMELEN];
1.1 deraadt 513: static int first = 1;
514: char *argdot;
515:
516: if (!(argdot = strchr(arg, '.')))
517: return;
518: if (first) {
519: first = 0;
520: if (gethostname(name, sizeof(name)))
521: err(1, "gethostname");
522: hostdot = strchr(name, '.');
523: }
524: if (hostdot && !strcasecmp(hostdot, argdot))
525: *argdot = '\0';
526: }
527:
528: /*
1.33 deraadt 529: * convert tty to correct name.
1.1 deraadt 530: */
531: char *
1.27 deraadt 532: ttyconv(char *arg)
1.1 deraadt 533: {
1.33 deraadt 534: size_t len = 8;
1.1 deraadt 535: char *mval;
536:
537: /*
538: * kludge -- we assume that all tty's end with
539: * a two character suffix.
540: */
541: if (strlen(arg) == 2) {
542: /* either 6 for "ttyxx" or 8 for "console" */
1.21 deraadt 543: if (!(mval = malloc(len)))
1.1 deraadt 544: err(1, "malloc failure");
545: if (!strcmp(arg, "co"))
1.21 deraadt 546: (void)strlcpy(mval, "console", len);
547: else
548: snprintf(mval, len, "tty%s", arg);
1.1 deraadt 549: return (mval);
550: }
551: if (!strncmp(arg, _PATH_DEV, sizeof(_PATH_DEV) - 1))
552: return (arg + 5);
553: return (arg);
554: }
1.4 jdm 555:
1.18 mickey 556: /*
557: * Convert the snapshot time in command line given in the format
1.23 deraadt 558: * [[[CC]YY]MMDD]hhmm[.SS]] to a time_t.
1.18 mickey 559: * Derived from atime_arg1() in usr.bin/touch/touch.c
1.4 jdm 560: */
561: time_t
1.27 deraadt 562: dateconv(char *arg)
1.4 jdm 563: {
1.7 deraadt 564: time_t timet;
565: struct tm *t;
566: int yearset;
567: char *p;
568:
569: /* Start with the current time. */
570: if (time(&timet) < 0)
571: err(1, "time");
572: if ((t = localtime(&timet)) == NULL)
573: err(1, "localtime");
574:
1.23 deraadt 575: /* [[[CC]YY]MMDD]hhmm[.SS] */
1.7 deraadt 576: if ((p = strchr(arg, '.')) == NULL)
1.18 mickey 577: t->tm_sec = 0; /* Seconds defaults to 0. */
1.7 deraadt 578: else {
579: if (strlen(p + 1) != 2)
580: goto terr;
581: *p++ = '\0';
582: t->tm_sec = ATOI2(p);
583: }
584:
585: yearset = 0;
586: switch (strlen(arg)) {
1.22 deraadt 587: case 12: /* CCYYMMDDhhmm */
1.7 deraadt 588: t->tm_year = ATOI2(arg);
589: t->tm_year *= 100;
590: yearset = 1;
1.29 otto 591: /* FALLTHROUGH */
1.22 deraadt 592: case 10: /* YYMMDDhhmm */
1.7 deraadt 593: if (yearset) {
594: yearset = ATOI2(arg);
595: t->tm_year += yearset;
596: } else {
597: yearset = ATOI2(arg);
598: if (yearset < 69)
599: t->tm_year = yearset + 2000;
600: else
601: t->tm_year = yearset + 1900;
602: }
1.28 deraadt 603: t->tm_year -= 1900; /* Convert to UNIX time. */
1.7 deraadt 604: /* FALLTHROUGH */
605: case 8: /* MMDDhhmm */
606: t->tm_mon = ATOI2(arg);
1.18 mickey 607: --t->tm_mon; /* Convert from 01-12 to 00-11 */
1.7 deraadt 608: t->tm_mday = ATOI2(arg);
609: t->tm_hour = ATOI2(arg);
610: t->tm_min = ATOI2(arg);
611: break;
612: case 4: /* hhmm */
613: t->tm_hour = ATOI2(arg);
614: t->tm_min = ATOI2(arg);
615: break;
616: default:
617: goto terr;
618: }
1.18 mickey 619: t->tm_isdst = -1; /* Figure out DST. */
1.7 deraadt 620: timet = mktime(t);
621: if (timet == -1)
1.28 deraadt 622: terr: errx(1, "out of range or illegal time specification: "
623: "[[[CC]YY]MMDD]hhmm[.SS]");
1.22 deraadt 624: return (timet);
1.4 jdm 625: }
626:
1.1 deraadt 627:
628: /*
1.33 deraadt 629: * on interrupt, we inform the user how far we've gotten
1.1 deraadt 630: */
631: void
1.27 deraadt 632: onintr(int signo)
1.1 deraadt 633: {
1.25 deraadt 634: char str[1024], *ct;
1.1 deraadt 635:
1.25 deraadt 636: ct = ctime(&buf[0].ut_time); /* XXX signal race */
637: snprintf(str, sizeof str, "\ninterrupted %10.10s %8.8s \n",
638: ct, ct + 11);
639: write(STDOUT_FILENO, str, strlen(str));
1.1 deraadt 640: if (signo == SIGINT)
1.25 deraadt 641: _exit(1);
1.22 deraadt 642: }
643:
644: void
645: usage(void)
646: {
647: extern char *__progname;
648:
649: fprintf(stderr,
1.34 jmc 650: "usage: %s [-csT] [-d date] [-f file] [-h host]"
651: " [-n number] [-t tty] [user ...]\n", __progname);
1.22 deraadt 652: exit(1);
1.1 deraadt 653: }