xref: /freebsd/usr.bin/finger/lprint.c (revision c68159a6d8eede11766cf13896d0f7670dbd51aa)
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
38 #if 0
39 static char sccsid[] = "@(#)lprint.c	8.3 (Berkeley) 4/28/95";
40 #else
41 static const char rcsid[] =
42   "$FreeBSD$";
43 #endif
44 #endif /* not lint */
45 
46 #include <sys/types.h>
47 #include <sys/stat.h>
48 #include <sys/time.h>
49 #include <fcntl.h>
50 #include <time.h>
51 #include <db.h>
52 #include <err.h>
53 #include <pwd.h>
54 #include <utmp.h>
55 #include <errno.h>
56 #include <unistd.h>
57 #include <stdio.h>
58 #include <ctype.h>
59 #include <string.h>
60 #include <paths.h>
61 #include "finger.h"
62 #include "pathnames.h"
63 #include "extern.h"
64 
65 #define	LINE_LEN	80
66 #define	TAB_LEN		8		/* 8 spaces between tabs */
67 
68 static int	demi_print __P((char *, int));
69 static void	lprint __P((PERSON *));
70 static void     vputc __P((unsigned char));
71 
72 void
73 lflag_print()
74 {
75 	extern int pplan;
76 	register PERSON *pn;
77 	register int sflag, r;
78 	PERSON *tmp;
79 	DBT data, key;
80 
81 	for (sflag = R_FIRST;; sflag = R_NEXT) {
82 		r = (*db->seq)(db, &key, &data, sflag);
83 		if (r == -1)
84 			err(1, "db seq");
85 		if (r == 1)
86 			break;
87 		memmove(&tmp, data.data, sizeof tmp);
88 		pn = tmp;
89 		if (sflag != R_FIRST)
90 			putchar('\n');
91 		lprint(pn);
92 		if (!pplan) {
93 			(void)show_text(pn->dir,
94 			    _PATH_FORWARD, "Mail forwarded to");
95 			(void)show_text(pn->dir, _PATH_PROJECT, "Project");
96 			if (!show_text(pn->dir, _PATH_PLAN, "Plan"))
97 				(void)printf("No Plan.\n");
98 			(void)show_text(pn->dir,
99 			    _PATH_PUBKEY, "Public key");
100 		}
101 	}
102 }
103 
104 static void
105 lprint(pn)
106 	register PERSON *pn;
107 {
108 	extern time_t now;
109 	register struct tm *delta;
110 	register WHERE *w;
111 	register int cpr, len, maxlen;
112 	struct tm *tp;
113 	int oddfield;
114 	char *tzn;
115 	char t[80];
116 
117 	/*
118 	 * long format --
119 	 *	login name
120 	 *	real name
121 	 *	home directory
122 	 *	shell
123 	 *	office, office phone, home phone if available
124 	 *	mail status
125 	 */
126 	(void)printf("Login: %-15s\t\t\tName: %s\nDirectory: %-25s",
127 	    pn->name, pn->realname, pn->dir);
128 	(void)printf("\tShell: %-s\n", *pn->shell ? pn->shell : _PATH_BSHELL);
129 
130 	/*
131 	 * try and print office, office phone, and home phone on one line;
132 	 * if that fails, do line filling so it looks nice.
133 	 */
134 #define	OFFICE_TAG		"Office"
135 #define	OFFICE_PHONE_TAG	"Office Phone"
136 	oddfield = 0;
137 	if (pn->office && pn->officephone &&
138 	    strlen(pn->office) + strlen(pn->officephone) +
139 	    sizeof(OFFICE_TAG) + 2 <= 5 * TAB_LEN) {
140 		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s, %s",
141 		    OFFICE_TAG, pn->office, prphone(pn->officephone));
142 		oddfield = demi_print(tbuf, oddfield);
143 	} else {
144 		if (pn->office) {
145 			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
146 			    OFFICE_TAG, pn->office);
147 			oddfield = demi_print(tbuf, oddfield);
148 		}
149 		if (pn->officephone) {
150 			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
151 			    OFFICE_PHONE_TAG, prphone(pn->officephone));
152 			oddfield = demi_print(tbuf, oddfield);
153 		}
154 	}
155 	if (pn->homephone) {
156 		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s", "Home Phone",
157 		    prphone(pn->homephone));
158 		oddfield = demi_print(tbuf, oddfield);
159 	}
160 	if (oddfield)
161 		putchar('\n');
162 
163 	/*
164 	 * long format con't:
165 	 * if logged in
166 	 *	terminal
167 	 *	idle time
168 	 *	if messages allowed
169 	 *	where logged in from
170 	 * if not logged in
171 	 *	when last logged in
172 	 */
173 	/* find out longest device name for this user for formatting */
174 	for (w = pn->whead, maxlen = -1; w != NULL; w = w->next)
175 		if ((len = strlen(w->tty)) > maxlen)
176 			maxlen = len;
177 	/* find rest of entries for user */
178 	for (w = pn->whead; w != NULL; w = w->next) {
179 		if (w->info == LOGGEDIN) {
180 			tp = localtime(&w->loginat);
181 			strftime(t, sizeof(t), "%c", tp);
182 			tzn = tp->tm_zone;
183 			cpr = printf("On since %.16s (%s) on %s",
184 			    t, tzn, w->tty);
185 			/*
186 			 * idle time is tough; if have one, print a comma,
187 			 * then spaces to pad out the device name, then the
188 			 * idle time.  Follow with a comma if a remote login.
189 			 */
190 			delta = gmtime(&w->idletime);
191 			if (delta->tm_yday || delta->tm_hour || delta->tm_min) {
192 				cpr += printf("%-*s idle ",
193 				    maxlen - strlen(w->tty) + 1, ",");
194 				if (delta->tm_yday > 0) {
195 					cpr += printf("%d day%s ",
196 					   delta->tm_yday,
197 					   delta->tm_yday == 1 ? "" : "s");
198 				}
199 				cpr += printf("%d:%02d",
200 				    delta->tm_hour, delta->tm_min);
201 				if (*w->host) {
202 					putchar(',');
203 					++cpr;
204 				}
205 			}
206 			if (!w->writable)
207 				cpr += printf(" (messages off)");
208 		} else if (w->loginat == 0) {
209 			cpr = printf("Never logged in.");
210 		} else {
211 			tp = localtime(&w->loginat);
212 			strftime(t, sizeof(t), "%c", tp);
213 			tzn = tp->tm_zone;
214 			if (now - w->loginat > 86400 * 365 / 2)
215 				cpr =
216 				    printf("Last login %.16s %.4s (%s) on %s",
217 				    t, t + 20, tzn, w->tty);
218 			else
219 				cpr = printf("Last login %.16s (%s) on %s",
220 				    t, tzn, w->tty);
221 		}
222 		if (*w->host) {
223 			if (LINE_LEN < (cpr + 6 + strlen(w->host)))
224 				(void)printf("\n   ");
225 			(void)printf(" from %s", w->host);
226 		}
227 		putchar('\n');
228 	}
229 	if (pn->mailrecv == -1)
230 		printf("No Mail.\n");
231 	else if (pn->mailrecv > pn->mailread) {
232 		tp = localtime(&pn->mailrecv);
233 		strftime(t, sizeof(t), "%c", tp);
234 		tzn = tp->tm_zone;
235 		printf("New mail received %.16s %.4s (%s)\n", t, t + 20, tzn);
236 		tp = localtime(&pn->mailread);
237 		strftime(t, sizeof(t), "%c", tp);
238 		tzn = tp->tm_zone;
239 		printf("     Unread since %.16s %.4s (%s)\n", t, t + 20, tzn);
240 	} else {
241 		tp = localtime(&pn->mailread);
242 		strftime(t, sizeof(t), "%c", tp);
243 		tzn = tp->tm_zone;
244 		printf("Mail last read %.16s %.4s (%s)\n", t, t + 20, tzn);
245 	}
246 }
247 
248 static int
249 demi_print(str, oddfield)
250 	char *str;
251 	int oddfield;
252 {
253 	static int lenlast;
254 	int lenthis, maxlen;
255 
256 	lenthis = strlen(str);
257 	if (oddfield) {
258 		/*
259 		 * We left off on an odd number of fields.  If we haven't
260 		 * crossed the midpoint of the screen, and we have room for
261 		 * the next field, print it on the same line; otherwise,
262 		 * print it on a new line.
263 		 *
264 		 * Note: we insist on having the right hand fields start
265 		 * no less than 5 tabs out.
266 		 */
267 		maxlen = 5 * TAB_LEN;
268 		if (maxlen < lenlast)
269 			maxlen = lenlast;
270 		if (((((maxlen / TAB_LEN) + 1) * TAB_LEN) +
271 		    lenthis) <= LINE_LEN) {
272 			while(lenlast < (4 * TAB_LEN)) {
273 				putchar('\t');
274 				lenlast += TAB_LEN;
275 			}
276 			(void)printf("\t%s\n", str);	/* force one tab */
277 		} else {
278 			(void)printf("\n%s", str);	/* go to next line */
279 			oddfield = !oddfield;	/* this'll be undone below */
280 		}
281 	} else
282 		(void)printf("%s", str);
283 	oddfield = !oddfield;			/* toggle odd/even marker */
284 	lenlast = lenthis;
285 	return(oddfield);
286 }
287 
288 int
289 show_text(directory, file_name, header)
290 	char *directory, *file_name, *header;
291 {
292 	struct stat sb;
293 	register FILE *fp;
294 	register int ch, cnt;
295 	register char *p, lastc;
296 	int fd, nr;
297 
298 	lastc = '\0';
299 
300 	(void)snprintf(tbuf, sizeof(tbuf), "%s/%s", directory, file_name);
301 	if ((fd = open(tbuf, O_RDONLY)) < 0 || fstat(fd, &sb) ||
302 	    sb.st_size == 0)
303 		return(0);
304 
305 	/* If short enough, and no newlines, show it on a single line.*/
306 	if (sb.st_size <= LINE_LEN - strlen(header) - 5) {
307 		nr = read(fd, tbuf, sizeof(tbuf));
308 		if (nr <= 0) {
309 			(void)close(fd);
310 			return(0);
311 		}
312 		for (p = tbuf, cnt = nr; cnt--; ++p)
313 			if (*p == '\n')
314 				break;
315 		if (cnt <= 1) {
316 			if (*header != '\0')
317 				(void)printf("%s: ", header);
318 			for (p = tbuf, cnt = nr; cnt--; ++p)
319 				if (*p != '\r')
320 					vputc(lastc = *p);
321 			if (lastc != '\n')
322 				(void)putchar('\n');
323 			(void)close(fd);
324 			return(1);
325 		}
326 		else
327 			(void)lseek(fd, 0L, SEEK_SET);
328 	}
329 	if ((fp = fdopen(fd, "r")) == NULL)
330 		return(0);
331 	if (*header != '\0')
332 		(void)printf("%s:\n", header);
333 	while ((ch = getc(fp)) != EOF)
334 		if (ch != '\r')
335 			vputc(lastc = ch);
336 	if (lastc != '\n')
337 		(void)putchar('\n');
338 	(void)fclose(fp);
339 	return(1);
340 }
341 
342 static void
343 vputc(ch)
344 	register unsigned char ch;
345 {
346 	int meta;
347 
348 	if (!isprint(ch) && !isascii(ch)) {
349 		(void)putchar('M');
350 		(void)putchar('-');
351 		ch = toascii(ch);
352 		meta = 1;
353 	} else
354 		meta = 0;
355 	if (isprint(ch) || (!meta && (ch == ' ' || ch == '\t' || ch == '\n')))
356 		(void)putchar(ch);
357 	else {
358 		(void)putchar('^');
359 		(void)putchar(ch == '\177' ? '?' : ch | 0100);
360 	}
361 }
362