xref: /netbsd/usr.bin/finger/lprint.c (revision c4a72b64)
1 /*	$NetBSD: lprint.c,v 1.18 2002/09/12 01:31:41 kim Exp $	*/
2 
3 /*
4  * Copyright (c) 1989, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * Tony Nardo of the Johns Hopkins University/Applied Physics Lab.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *	This product includes software developed by the University of
21  *	California, Berkeley and its contributors.
22  * 4. Neither the name of the University nor the names of its contributors
23  *    may be used to endorse or promote products derived from this software
24  *    without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36  * SUCH DAMAGE.
37  */
38 
39 #include <sys/cdefs.h>
40 #ifndef lint
41 #if 0
42 static char sccsid[] = "@(#)lprint.c	8.3 (Berkeley) 4/28/95";
43 #else
44 __RCSID( "$NetBSD: lprint.c,v 1.18 2002/09/12 01:31:41 kim Exp $");
45 #endif
46 #endif /* not lint */
47 
48 #include <sys/types.h>
49 #include <sys/stat.h>
50 #include <sys/time.h>
51 #include <fcntl.h>
52 #include <time.h>
53 #include <tzfile.h>
54 #include <db.h>
55 #include <err.h>
56 #include <pwd.h>
57 #include <errno.h>
58 #include <unistd.h>
59 #include <stdio.h>
60 #include <string.h>
61 #include <time.h>
62 #include <ctype.h>
63 #include <string.h>
64 #include <paths.h>
65 #include <vis.h>
66 
67 #include "utmpentry.h"
68 #include "finger.h"
69 #include "extern.h"
70 
71 #define	LINE_LEN	80
72 #define	TAB_LEN		8		/* 8 spaces between tabs */
73 #define	_PATH_FORWARD	".forward"
74 #define	_PATH_PLAN	".plan"
75 #define	_PATH_PROJECT	".project"
76 
77 static int	demi_print __P((char *, int));
78 static void	lprint __P((PERSON *));
79 static int	show_text __P((char *, char *, char *));
80 static void	vputc __P((int));
81 
82 #ifdef __SVR4
83 #define TIMEZONE(a)	tzname[0]
84 #else
85 #define TIMEZONE(a)	(a)->tm_zone
86 #endif
87 
88 void
89 lflag_print()
90 {
91 	PERSON *pn;
92 	int sflag, r;
93 	PERSON *tmp;
94 	DBT data, key;
95 
96 	if (db == NULL)
97 		return;
98 
99 	for (sflag = R_FIRST;; sflag = R_NEXT) {
100 		r = (*db->seq)(db, &key, &data, sflag);
101 		if (r == -1)
102 			err(1, "db seq");
103 		if (r == 1)
104 			break;
105 		memmove(&tmp, data.data, sizeof tmp);
106 		pn = tmp;
107 		if (sflag != R_FIRST)
108 			putchar('\n');
109 		lprint(pn);
110 		if (!pplan) {
111 			(void)show_text(pn->dir,
112 			    _PATH_FORWARD, "Mail forwarded to");
113 			(void)show_text(pn->dir, _PATH_PROJECT, "Project");
114 			if (!show_text(pn->dir, _PATH_PLAN, "Plan"))
115 				(void)printf("No Plan.\n");
116 		}
117 	}
118 }
119 
120 static void
121 lprint(pn)
122 	PERSON *pn;
123 {
124 	struct tm *delta;
125 	WHERE *w;
126 	int cpr, len, maxlen;
127 	struct tm *tp;
128 	int oddfield;
129 	char *t;
130 	const char *tzn;
131 
132 	cpr = 0;
133 	/*
134 	 * long format --
135 	 *	login name
136 	 *	real name
137 	 *	home directory
138 	 *	shell
139 	 *	office, office phone, home phone if available
140 	 *	mail status
141 	 */
142 	(void)printf("Login: %-15s\t\t\tName: %s\nDirectory: %-25s",
143 	    pn->name, pn->realname, pn->dir);
144 	(void)printf("\tShell: %-s\n", *pn->shell ? pn->shell : _PATH_BSHELL);
145 
146 	if (gflag)
147 		goto no_gecos;
148 	/*
149 	 * try and print office, office phone, and home phone on one line;
150 	 * if that fails, do line filling so it looks nice.
151 	 */
152 #define	OFFICE_TAG		"Office"
153 #define	OFFICE_PHONE_TAG	"Office Phone"
154 	oddfield = 0;
155 	if (pn->office && pn->officephone &&
156 	    strlen(pn->office) + strlen(pn->officephone) +
157 	    sizeof(OFFICE_TAG) + 2 <= 5 * TAB_LEN) {
158 		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s, %s",
159 		    OFFICE_TAG, pn->office, prphone(pn->officephone));
160 		oddfield = demi_print(tbuf, oddfield);
161 	} else {
162 		if (pn->office) {
163 			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
164 			    OFFICE_TAG, pn->office);
165 			oddfield = demi_print(tbuf, oddfield);
166 		}
167 		if (pn->officephone) {
168 			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
169 			    OFFICE_PHONE_TAG, prphone(pn->officephone));
170 			oddfield = demi_print(tbuf, oddfield);
171 		}
172 	}
173 	if (pn->homephone) {
174 		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s", "Home Phone",
175 		    prphone(pn->homephone));
176 		oddfield = demi_print(tbuf, oddfield);
177 	}
178 	if (oddfield)
179 		putchar('\n');
180 
181 no_gecos:
182 	/*
183 	 * long format con't:
184 	 * if logged in
185 	 *	terminal
186 	 *	idle time
187 	 *	if messages allowed
188 	 *	where logged in from
189 	 * if not logged in
190 	 *	when last logged in
191 	 */
192 	/* find out longest device name for this user for formatting */
193 	for (w = pn->whead, maxlen = -1; w != NULL; w = w->next)
194 		if ((len = strlen(w->tty)) > maxlen)
195 			maxlen = len;
196 	/* find rest of entries for user */
197 	for (w = pn->whead; w != NULL; w = w->next) {
198 		switch (w->info) {
199 		case LOGGEDIN:
200 			tp = localtime(&w->loginat);
201 			t = asctime(tp);
202 			tzn = TIMEZONE(tp);
203 			cpr = printf("On since %.16s (%s) on %s",
204 			    t, tzn, w->tty);
205 			/*
206 			 * idle time is tough; if have one, print a comma,
207 			 * then spaces to pad out the device name, then the
208 			 * idle time.  Follow with a comma if a remote login.
209 			 */
210 			delta = gmtime(&w->idletime);
211 			if (delta->tm_yday || delta->tm_hour || delta->tm_min) {
212 				cpr += printf("%-*s idle ",
213 				    (int)(maxlen - strlen(w->tty) + 1), ",");
214 				if (delta->tm_yday > 0) {
215 					cpr += printf("%d day%s ",
216 					   delta->tm_yday,
217 					   delta->tm_yday == 1 ? "" : "s");
218 				}
219 				cpr += printf("%d:%02d",
220 				    delta->tm_hour, delta->tm_min);
221 				if (*w->host) {
222 					putchar(',');
223 					++cpr;
224 				}
225 			}
226 			if (!w->writable)
227 				cpr += printf(" (messages off)");
228 			break;
229 		case LASTLOG:
230 			if (w->loginat == 0) {
231 				(void)printf("Never logged in.");
232 				break;
233 			}
234 			tp = localtime(&w->loginat);
235 			t = asctime(tp);
236 			tzn = TIMEZONE(tp);
237 			if (now - w->loginat > SECSPERDAY * DAYSPERNYEAR / 2)
238 				cpr =
239 				    printf("Last login %.16s %.4s (%s) on %s",
240 				    t, t + 20, tzn, w->tty);
241 			else
242 				cpr = printf("Last login %.16s (%s) on %s",
243 				    t, tzn, w->tty);
244 			break;
245 		}
246 		if (*w->host) {
247 			if (LINE_LEN < (cpr + 6 + strlen(w->host)))
248 				(void)printf("\n   ");
249 			(void)printf(" from %s", w->host);
250 		}
251 		putchar('\n');
252 	}
253 	if (pn->mailrecv == -1)
254 		printf("No Mail.\n");
255 	else if (pn->mailrecv > pn->mailread) {
256 		tp = localtime(&pn->mailrecv);
257 		t = asctime(tp);
258 		tzn = TIMEZONE(tp);
259 		printf("New mail received %.16s %.4s (%s)\n", t, t + 20, tzn);
260 		tp = localtime(&pn->mailread);
261 		t = asctime(tp);
262 		tzn = TIMEZONE(tp);
263 		printf("     Unread since %.16s %.4s (%s)\n", t, t + 20, tzn);
264 	} else {
265 		tp = localtime(&pn->mailread);
266 		t = asctime(tp);
267 		tzn = TIMEZONE(tp);
268 		printf("Mail last read %.16s %.4s (%s)\n", t, t + 20, tzn);
269 	}
270 }
271 
272 static int
273 demi_print(str, oddfield)
274 	char *str;
275 	int oddfield;
276 {
277 	static int lenlast;
278 	int lenthis, maxlen;
279 
280 	lenthis = strlen(str);
281 	if (oddfield) {
282 		/*
283 		 * We left off on an odd number of fields.  If we haven't
284 		 * crossed the midpoint of the screen, and we have room for
285 		 * the next field, print it on the same line; otherwise,
286 		 * print it on a new line.
287 		 *
288 		 * Note: we insist on having the right hand fields start
289 		 * no less than 5 tabs out.
290 		 */
291 		maxlen = 5 * TAB_LEN;
292 		if (maxlen < lenlast)
293 			maxlen = lenlast;
294 		if (((((maxlen / TAB_LEN) + 1) * TAB_LEN) +
295 		    lenthis) <= LINE_LEN) {
296 			while(lenlast < (4 * TAB_LEN)) {
297 				putchar('\t');
298 				lenlast += TAB_LEN;
299 			}
300 			(void)printf("\t%s\n", str);	/* force one tab */
301 		} else {
302 			(void)printf("\n%s", str);	/* go to next line */
303 			oddfield = !oddfield;	/* this'll be undone below */
304 		}
305 	} else
306 		(void)printf("%s", str);
307 	oddfield = !oddfield;			/* toggle odd/even marker */
308 	lenlast = lenthis;
309 	return(oddfield);
310 }
311 
312 static int
313 show_text(directory, file_name, header)
314 	char *directory, *file_name, *header;
315 {
316 	struct stat sb;
317 	FILE *fp;
318 	int ch, cnt, lastc;
319 	char *p;
320 	int fd, nr;
321 
322 	lastc = 0;
323 	(void)snprintf(tbuf, sizeof(tbuf), "%s/%s", directory, file_name);
324 	if ((fd = open(tbuf, O_RDONLY)) < 0 || fstat(fd, &sb) ||
325 	    sb.st_size == 0)
326 		return(0);
327 
328 	/* If short enough, and no newlines, show it on a single line.*/
329 	if (sb.st_size <= LINE_LEN - strlen(header) - 5) {
330 		nr = read(fd, tbuf, sizeof(tbuf));
331 		if (nr <= 0) {
332 			(void)close(fd);
333 			return(0);
334 		}
335 		for (p = tbuf, cnt = nr; cnt--; ++p)
336 			if (*p == '\n')
337 				break;
338 		if (cnt <= 1) {
339 			(void)printf("%s: ", header);
340 			for (p = tbuf, cnt = nr; cnt--; ++p)
341 				vputc(lastc = (unsigned char)*p);
342 			if (lastc != '\n')
343 				(void)putchar('\n');
344 			(void)close(fd);
345 			return(1);
346 		}
347 		else
348 			(void)lseek(fd, 0L, SEEK_SET);
349 	}
350 	if ((fp = fdopen(fd, "r")) == NULL)
351 		return(0);
352 	(void)printf("%s:\n", header);
353 	while ((ch = getc(fp)) != EOF)
354 		vputc(lastc = ch);
355 	if (lastc != '\n')
356 		(void)putchar('\n');
357 	(void)fclose(fp);
358 	return(1);
359 }
360 
361 static void
362 vputc(ch)
363 	int ch;
364 {
365 	char visout[5], *s2;
366 
367 	if (eightflag || isprint(ch) || isspace(ch)) {
368 	    (void)putchar(ch);
369 	    return;
370 	}
371 	ch = toascii(ch);
372 	vis(visout, ch, VIS_SAFE|VIS_NOSLASH, 0);
373 	for (s2 = visout; *s2; s2++)
374 		(void)putchar(*s2);
375 }
376