xref: /netbsd/usr.bin/finger/lprint.c (revision bf9ec67e)
1 /*	$NetBSD: lprint.c,v 1.12 1998/12/19 16:00:33 christos 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 1.12 1998/12/19 16:00:33 christos 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 <utmp.h>
58 #include <errno.h>
59 #include <unistd.h>
60 #include <stdio.h>
61 #include <string.h>
62 #include <time.h>
63 #include <ctype.h>
64 #include <string.h>
65 #include <paths.h>
66 #include <vis.h>
67 
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 	for (sflag = R_FIRST;; sflag = R_NEXT) {
97 		r = (*db->seq)(db, &key, &data, sflag);
98 		if (r == -1)
99 			err(1, "db seq");
100 		if (r == 1)
101 			break;
102 		memmove(&tmp, data.data, sizeof tmp);
103 		pn = tmp;
104 		if (sflag != R_FIRST)
105 			putchar('\n');
106 		lprint(pn);
107 		if (!pplan) {
108 			(void)show_text(pn->dir,
109 			    _PATH_FORWARD, "Mail forwarded to");
110 			(void)show_text(pn->dir, _PATH_PROJECT, "Project");
111 			if (!show_text(pn->dir, _PATH_PLAN, "Plan"))
112 				(void)printf("No Plan.\n");
113 		}
114 	}
115 }
116 
117 static void
118 lprint(pn)
119 	PERSON *pn;
120 {
121 	struct tm *delta;
122 	WHERE *w;
123 	int cpr, len, maxlen;
124 	struct tm *tp;
125 	int oddfield;
126 	char *t;
127 	const char *tzn;
128 
129 	cpr = 0;
130 	/*
131 	 * long format --
132 	 *	login name
133 	 *	real name
134 	 *	home directory
135 	 *	shell
136 	 *	office, office phone, home phone if available
137 	 *	mail status
138 	 */
139 	(void)printf("Login: %-15s\t\t\tName: %s\nDirectory: %-25s",
140 	    pn->name, pn->realname, pn->dir);
141 	(void)printf("\tShell: %-s\n", *pn->shell ? pn->shell : _PATH_BSHELL);
142 
143 	if (gflag)
144 		goto no_gecos;
145 	/*
146 	 * try and print office, office phone, and home phone on one line;
147 	 * if that fails, do line filling so it looks nice.
148 	 */
149 #define	OFFICE_TAG		"Office"
150 #define	OFFICE_PHONE_TAG	"Office Phone"
151 	oddfield = 0;
152 	if (pn->office && pn->officephone &&
153 	    strlen(pn->office) + strlen(pn->officephone) +
154 	    sizeof(OFFICE_TAG) + 2 <= 5 * TAB_LEN) {
155 		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s, %s",
156 		    OFFICE_TAG, pn->office, prphone(pn->officephone));
157 		oddfield = demi_print(tbuf, oddfield);
158 	} else {
159 		if (pn->office) {
160 			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
161 			    OFFICE_TAG, pn->office);
162 			oddfield = demi_print(tbuf, oddfield);
163 		}
164 		if (pn->officephone) {
165 			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
166 			    OFFICE_PHONE_TAG, prphone(pn->officephone));
167 			oddfield = demi_print(tbuf, oddfield);
168 		}
169 	}
170 	if (pn->homephone) {
171 		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s", "Home Phone",
172 		    prphone(pn->homephone));
173 		oddfield = demi_print(tbuf, oddfield);
174 	}
175 	if (oddfield)
176 		putchar('\n');
177 
178 no_gecos:
179 	/*
180 	 * long format con't:
181 	 * if logged in
182 	 *	terminal
183 	 *	idle time
184 	 *	if messages allowed
185 	 *	where logged in from
186 	 * if not logged in
187 	 *	when last logged in
188 	 */
189 	/* find out longest device name for this user for formatting */
190 	for (w = pn->whead, maxlen = -1; w != NULL; w = w->next)
191 		if ((len = strlen(w->tty)) > maxlen)
192 			maxlen = len;
193 	/* find rest of entries for user */
194 	for (w = pn->whead; w != NULL; w = w->next) {
195 		switch (w->info) {
196 		case LOGGEDIN:
197 			tp = localtime(&w->loginat);
198 			t = asctime(tp);
199 			tzn = TIMEZONE(tp);
200 			cpr = printf("On since %.16s (%s) on %s",
201 			    t, tzn, w->tty);
202 			/*
203 			 * idle time is tough; if have one, print a comma,
204 			 * then spaces to pad out the device name, then the
205 			 * idle time.  Follow with a comma if a remote login.
206 			 */
207 			delta = gmtime(&w->idletime);
208 			if (delta->tm_yday || delta->tm_hour || delta->tm_min) {
209 				cpr += printf("%-*s idle ",
210 				    (int)(maxlen - strlen(w->tty) + 1), ",");
211 				if (delta->tm_yday > 0) {
212 					cpr += printf("%d day%s ",
213 					   delta->tm_yday,
214 					   delta->tm_yday == 1 ? "" : "s");
215 				}
216 				cpr += printf("%d:%02d",
217 				    delta->tm_hour, delta->tm_min);
218 				if (*w->host) {
219 					putchar(',');
220 					++cpr;
221 				}
222 			}
223 			if (!w->writable)
224 				cpr += printf(" (messages off)");
225 			break;
226 		case LASTLOG:
227 			if (w->loginat == 0) {
228 				(void)printf("Never logged in.");
229 				break;
230 			}
231 			tp = localtime(&w->loginat);
232 			t = asctime(tp);
233 			tzn = TIMEZONE(tp);
234 			if (now - w->loginat > SECSPERDAY * DAYSPERNYEAR / 2)
235 				cpr =
236 				    printf("Last login %.16s %.4s (%s) on %s",
237 				    t, t + 20, tzn, w->tty);
238 			else
239 				cpr = printf("Last login %.16s (%s) on %s",
240 				    t, tzn, w->tty);
241 			break;
242 		}
243 		if (*w->host) {
244 			if (LINE_LEN < (cpr + 6 + strlen(w->host)))
245 				(void)printf("\n   ");
246 			(void)printf(" from %s", w->host);
247 		}
248 		putchar('\n');
249 	}
250 	if (pn->mailrecv == -1)
251 		printf("No Mail.\n");
252 	else if (pn->mailrecv > pn->mailread) {
253 		tp = localtime(&pn->mailrecv);
254 		t = asctime(tp);
255 		tzn = TIMEZONE(tp);
256 		printf("New mail received %.16s %.4s (%s)\n", t, t + 20, tzn);
257 		tp = localtime(&pn->mailread);
258 		t = asctime(tp);
259 		tzn = TIMEZONE(tp);
260 		printf("     Unread since %.16s %.4s (%s)\n", t, t + 20, tzn);
261 	} else {
262 		tp = localtime(&pn->mailread);
263 		t = asctime(tp);
264 		tzn = TIMEZONE(tp);
265 		printf("Mail last read %.16s %.4s (%s)\n", t, t + 20, tzn);
266 	}
267 }
268 
269 static int
270 demi_print(str, oddfield)
271 	char *str;
272 	int oddfield;
273 {
274 	static int lenlast;
275 	int lenthis, maxlen;
276 
277 	lenthis = strlen(str);
278 	if (oddfield) {
279 		/*
280 		 * We left off on an odd number of fields.  If we haven't
281 		 * crossed the midpoint of the screen, and we have room for
282 		 * the next field, print it on the same line; otherwise,
283 		 * print it on a new line.
284 		 *
285 		 * Note: we insist on having the right hand fields start
286 		 * no less than 5 tabs out.
287 		 */
288 		maxlen = 5 * TAB_LEN;
289 		if (maxlen < lenlast)
290 			maxlen = lenlast;
291 		if (((((maxlen / TAB_LEN) + 1) * TAB_LEN) +
292 		    lenthis) <= LINE_LEN) {
293 			while(lenlast < (4 * TAB_LEN)) {
294 				putchar('\t');
295 				lenlast += TAB_LEN;
296 			}
297 			(void)printf("\t%s\n", str);	/* force one tab */
298 		} else {
299 			(void)printf("\n%s", str);	/* go to next line */
300 			oddfield = !oddfield;	/* this'll be undone below */
301 		}
302 	} else
303 		(void)printf("%s", str);
304 	oddfield = !oddfield;			/* toggle odd/even marker */
305 	lenlast = lenthis;
306 	return(oddfield);
307 }
308 
309 static int
310 show_text(directory, file_name, header)
311 	char *directory, *file_name, *header;
312 {
313 	struct stat sb;
314 	FILE *fp;
315 	int ch, cnt, lastc;
316 	char *p;
317 	int fd, nr;
318 
319 	lastc = 0;
320 	(void)snprintf(tbuf, sizeof(tbuf), "%s/%s", directory, file_name);
321 	if ((fd = open(tbuf, O_RDONLY)) < 0 || fstat(fd, &sb) ||
322 	    sb.st_size == 0)
323 		return(0);
324 
325 	/* If short enough, and no newlines, show it on a single line.*/
326 	if (sb.st_size <= LINE_LEN - strlen(header) - 5) {
327 		nr = read(fd, tbuf, sizeof(tbuf));
328 		if (nr <= 0) {
329 			(void)close(fd);
330 			return(0);
331 		}
332 		for (p = tbuf, cnt = nr; cnt--; ++p)
333 			if (*p == '\n')
334 				break;
335 		if (cnt <= 1) {
336 			(void)printf("%s: ", header);
337 			for (p = tbuf, cnt = nr; cnt--; ++p)
338 				vputc(lastc = *p);
339 			if (lastc != '\n')
340 				(void)putchar('\n');
341 			(void)close(fd);
342 			return(1);
343 		}
344 		else
345 			(void)lseek(fd, 0L, SEEK_SET);
346 	}
347 	if ((fp = fdopen(fd, "r")) == NULL)
348 		return(0);
349 	(void)printf("%s:\n", header);
350 	while ((ch = getc(fp)) != EOF)
351 		vputc(lastc = ch);
352 	if (lastc != '\n')
353 		(void)putchar('\n');
354 	(void)fclose(fp);
355 	return(1);
356 }
357 
358 static void
359 vputc(ch)
360 	int ch;
361 {
362 	char visout[5], *s2;
363 
364 	ch = toascii(ch);
365 	vis(visout, ch, VIS_SAFE|VIS_NOSLASH, 0);
366 	for (s2 = visout; *s2; s2++)
367 		(void)putchar(*s2);
368 }
369