lprint.c revision 1591 
1/*
2 * Copyright (c) 1989, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Tony Nardo of the Johns Hopkins University/Applied Physics Lab.
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
38static char sccsid[] = "@(#)lprint.c	8.1 (Berkeley) 6/6/93";
39#endif /* not lint */
40
41#include <sys/types.h>
42#include <sys/stat.h>
43#include <sys/time.h>
44#include <fcntl.h>
45#include <time.h>
46#include <tzfile.h>
47#include <db.h>
48#include <pwd.h>
49#include <utmp.h>
50#include <errno.h>
51#include <unistd.h>
52#include <stdio.h>
53#include <ctype.h>
54#include <string.h>
55#include <paths.h>
56#include "finger.h"
57
58#define	LINE_LEN	80
59#define	TAB_LEN		8		/* 8 spaces between tabs */
60#define	_PATH_FORWARD	".forward"
61#define	_PATH_PLAN	".plan"
62#define	_PATH_PROJECT	".project"
63
64static int	demi_print __P((char *, int));
65static void	lprint __P((PERSON *));
66static int	show_text __P((char *, char *, char *));
67static void	vputc __P((int));
68
69void
70lflag_print()
71{
72	extern int pplan;
73	register PERSON *pn;
74	register int sflag, r;
75	DBT data, key;
76
77	for (sflag = R_FIRST;; sflag = R_NEXT) {
78		r = (*db->seq)(db, &key, &data, sflag);
79		if (r == -1)
80			err("db seq: %s", strerror(errno));
81		if (r == 1)
82			break;
83		pn = *(PERSON **)data.data;
84		if (sflag != R_FIRST)
85			putchar('\n');
86		lprint(pn);
87		if (!pplan) {
88			(void)show_text(pn->dir,
89			    _PATH_FORWARD, "Mail forwarded to");
90			(void)show_text(pn->dir, _PATH_PROJECT, "Project");
91			if (!show_text(pn->dir, _PATH_PLAN, "Plan"))
92				(void)printf("No Plan.\n");
93		}
94	}
95}
96
97static void
98lprint(pn)
99	register PERSON *pn;
100{
101	extern time_t now;
102	register struct tm *delta;
103	register WHERE *w;
104	register int cpr, len, maxlen;
105	struct tm *tp;
106	int oddfield;
107	char *t, *tzn;
108
109	/*
110	 * long format --
111	 *	login name
112	 *	real name
113	 *	home directory
114	 *	shell
115	 *	office, office phone, home phone if available
116	 */
117	(void)printf("Login: %-15s\t\t\tName: %s\nDirectory: %-25s",
118	    pn->name, pn->realname, pn->dir);
119	(void)printf("\tShell: %-s\n", *pn->shell ? pn->shell : _PATH_BSHELL);
120
121	/*
122	 * try and print office, office phone, and home phone on one line;
123	 * if that fails, do line filling so it looks nice.
124	 */
125#define	OFFICE_TAG		"Office"
126#define	OFFICE_PHONE_TAG	"Office Phone"
127	oddfield = 0;
128	if (pn->office && pn->officephone &&
129	    strlen(pn->office) + strlen(pn->officephone) +
130	    sizeof(OFFICE_TAG) + 2 <= 5 * TAB_LEN) {
131		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s, %s",
132		    OFFICE_TAG, pn->office, prphone(pn->officephone));
133		oddfield = demi_print(tbuf, oddfield);
134	} else {
135		if (pn->office) {
136			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
137			    OFFICE_TAG, pn->office);
138			oddfield = demi_print(tbuf, oddfield);
139		}
140		if (pn->officephone) {
141			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
142			    OFFICE_PHONE_TAG, prphone(pn->officephone));
143			oddfield = demi_print(tbuf, oddfield);
144		}
145	}
146	if (pn->homephone) {
147		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s", "Home Phone",
148		    prphone(pn->homephone));
149		oddfield = demi_print(tbuf, oddfield);
150	}
151	if (oddfield)
152		putchar('\n');
153
154	/*
155	 * long format con't: * if logged in
156	 *	terminal
157	 *	idle time
158	 *	if messages allowed
159	 *	where logged in from
160	 * if not logged in
161	 *	when last logged in
162	 */
163	/* find out longest device name for this user for formatting */
164	for (w = pn->whead, maxlen = -1; w != NULL; w = w->next)
165		if ((len = strlen(w->tty)) > maxlen)
166			maxlen = len;
167	/* find rest of entries for user */
168	for (w = pn->whead; w != NULL; w = w->next) {
169		switch (w->info) {
170		case LOGGEDIN:
171			tp = localtime(&w->loginat);
172			t = asctime(tp);
173			tzn = tp->tm_zone;
174			cpr = printf("On since %.16s (%s) on %s",
175			    t, tzn, w->tty);
176			/*
177			 * idle time is tough; if have one, print a comma,
178			 * then spaces to pad out the device name, then the
179			 * idle time.  Follow with a comma if a remote login.
180			 */
181			delta = gmtime(&w->idletime);
182			if (delta->tm_yday || delta->tm_hour || delta->tm_min) {
183				cpr += printf("%-*s idle ",
184				    maxlen - strlen(w->tty) + 1, ",");
185				if (delta->tm_yday > 0) {
186					cpr += printf("%d day%s ",
187					   delta->tm_yday,
188					   delta->tm_yday == 1 ? "" : "s");
189				}
190				cpr += printf("%d:%02d",
191				    delta->tm_hour, delta->tm_min);
192				if (*w->host) {
193					putchar(',');
194					++cpr;
195				}
196			}
197			if (!w->writable)
198				cpr += printf(" (messages off)");
199			break;
200		case LASTLOG:
201			if (w->loginat == 0) {
202				(void)printf("Never logged in.");
203				break;
204			}
205			tp = localtime(&w->loginat);
206			t = asctime(tp);
207			tzn = tp->tm_zone;
208			if (now - w->loginat > SECSPERDAY * DAYSPERNYEAR / 2)
209				cpr =
210				    printf("Last login %.16s %.4s (%s) on %s",
211				    t, t + 20, tzn, w->tty);
212			else
213				cpr = printf("Last login %.16s (%s) on %s",
214				    t, tzn, w->tty);
215			break;
216		}
217		if (*w->host) {
218			if (LINE_LEN < (cpr + 6 + strlen(w->host)))
219				(void)printf("\n   ");
220			(void)printf(" from %s", w->host);
221		}
222		putchar('\n');
223	}
224}
225
226static int
227demi_print(str, oddfield)
228	char *str;
229	int oddfield;
230{
231	static int lenlast;
232	int lenthis, maxlen;
233
234	lenthis = strlen(str);
235	if (oddfield) {
236		/*
237		 * We left off on an odd number of fields.  If we haven't
238		 * crossed the midpoint of the screen, and we have room for
239		 * the next field, print it on the same line; otherwise,
240		 * print it on a new line.
241		 *
242		 * Note: we insist on having the right hand fields start
243		 * no less than 5 tabs out.
244		 */
245		maxlen = 5 * TAB_LEN;
246		if (maxlen < lenlast)
247			maxlen = lenlast;
248		if (((((maxlen / TAB_LEN) + 1) * TAB_LEN) +
249		    lenthis) <= LINE_LEN) {
250			while(lenlast < (4 * TAB_LEN)) {
251				putchar('\t');
252				lenlast += TAB_LEN;
253			}
254			(void)printf("\t%s\n", str);	/* force one tab */
255		} else {
256			(void)printf("\n%s", str);	/* go to next line */
257			oddfield = !oddfield;	/* this'll be undone below */
258		}
259	} else
260		(void)printf("%s", str);
261	oddfield = !oddfield;			/* toggle odd/even marker */
262	lenlast = lenthis;
263	return(oddfield);
264}
265
266static int
267show_text(directory, file_name, header)
268	char *directory, *file_name, *header;
269{
270	struct stat sb;
271	register FILE *fp;
272	register int ch, cnt, lastc;
273	register char *p;
274	int fd, nr;
275
276	(void)snprintf(tbuf, sizeof(tbuf), "%s/%s", directory, file_name);
277	if ((fd = open(tbuf, O_RDONLY)) < 0 || fstat(fd, &sb) ||
278	    sb.st_size == 0)
279		return(0);
280
281	/* If short enough, and no newlines, show it on a single line.*/
282	if (sb.st_size <= LINE_LEN - strlen(header) - 5) {
283		nr = read(fd, tbuf, sizeof(tbuf));
284		if (nr <= 0) {
285			(void)close(fd);
286			return(0);
287		}
288		for (p = tbuf, cnt = nr; cnt--; ++p)
289			if (*p == '\n')
290				break;
291		if (cnt <= 1) {
292			(void)printf("%s: ", header);
293			for (p = tbuf, cnt = nr; cnt--; ++p)
294				vputc(lastc = *p);
295			if (lastc != '\n')
296				(void)putchar('\n');
297			(void)close(fd);
298			return(1);
299		}
300		else
301			(void)lseek(fd, 0L, SEEK_SET);
302	}
303	if ((fp = fdopen(fd, "r")) == NULL)
304		return(0);
305	(void)printf("%s:\n", header);
306	while ((ch = getc(fp)) != EOF)
307		vputc(lastc = ch);
308	if (lastc != '\n')
309		(void)putchar('\n');
310	(void)fclose(fp);
311	return(1);
312}
313
314static void
315vputc(ch)
316	register int ch;
317{
318	int meta;
319
320	if (!isascii(ch)) {
321		(void)putchar('M');
322		(void)putchar('-');
323		ch = toascii(ch);
324		meta = 1;
325	} else
326		meta = 0;
327	if (isprint(ch) || !meta && (ch == ' ' || ch == '\t' || ch == '\n'))
328		(void)putchar(ch);
329	else {
330		(void)putchar('^');
331		(void)putchar(ch == '\177' ? '?' : ch | 0100);
332	}
333}
334