xref: /dragonfly/usr.bin/finger/lprint.c (revision 984263bc)
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 #if 0
38 #ifndef lint
39 static char sccsid[] = "@(#)lprint.c	8.3 (Berkeley) 4/28/95";
40 #endif
41 #endif
42 
43 #include <sys/cdefs.h>
44 __FBSDID("$FreeBSD: src/usr.bin/finger/lprint.c,v 1.10.2.4 2002/07/03 01:14:24 des Exp $");
45 
46 #include <sys/types.h>
47 #include <sys/stat.h>
48 #include <sys/time.h>
49 #include <ctype.h>
50 #include <db.h>
51 #include <err.h>
52 #include <fcntl.h>
53 #include <langinfo.h>
54 #include <paths.h>
55 #include <pwd.h>
56 #include <stdio.h>
57 #include <string.h>
58 #include <unistd.h>
59 #include <utmp.h>
60 #include "finger.h"
61 #include "pathnames.h"
62 #include "extern.h"
63 
64 #define	LINE_LEN	80
65 #define	TAB_LEN		8		/* 8 spaces between tabs */
66 
67 static int	demi_print(char *, int);
68 static void	lprint(PERSON *);
69 static void     vputc(unsigned char);
70 
71 void
72 lflag_print()
73 {
74 	extern int pplan;
75 	PERSON *pn;
76 	int sflag, r;
77 	PERSON *tmp;
78 	DBT data, key;
79 
80 	for (sflag = R_FIRST;; sflag = R_NEXT) {
81 		r = (*db->seq)(db, &key, &data, sflag);
82 		if (r == -1)
83 			err(1, "db seq");
84 		if (r == 1)
85 			break;
86 		memmove(&tmp, data.data, sizeof tmp);
87 		pn = tmp;
88 		if (sflag != R_FIRST)
89 			putchar('\n');
90 		lprint(pn);
91 		if (!pplan) {
92 			(void)show_text(pn->dir,
93 			    _PATH_FORWARD, "Mail forwarded to");
94 			(void)show_text(pn->dir, _PATH_PROJECT, "Project");
95 			if (!show_text(pn->dir, _PATH_PLAN, "Plan"))
96 				(void)printf("No Plan.\n");
97 			(void)show_text(pn->dir,
98 			    _PATH_PUBKEY, "Public key");
99 		}
100 	}
101 }
102 
103 static void
104 lprint(pn)
105 	PERSON *pn;
106 {
107 	extern time_t now;
108 	struct tm *delta;
109 	WHERE *w;
110 	int cpr, len, maxlen;
111 	struct tm *tp;
112 	int oddfield;
113 	char t[80];
114 
115 	if (d_first < 0)
116 		d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
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 	if (gflag)
131 		goto no_gecos;
132 	/*
133 	 * try and print office, office phone, and home phone on one line;
134 	 * if that fails, do line filling so it looks nice.
135 	 */
136 #define	OFFICE_TAG		"Office"
137 #define	OFFICE_PHONE_TAG	"Office Phone"
138 	oddfield = 0;
139 	if (pn->office && pn->officephone &&
140 	    strlen(pn->office) + strlen(pn->officephone) +
141 	    sizeof(OFFICE_TAG) + 2 <= 5 * TAB_LEN) {
142 		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s, %s",
143 		    OFFICE_TAG, pn->office, prphone(pn->officephone));
144 		oddfield = demi_print(tbuf, oddfield);
145 	} else {
146 		if (pn->office) {
147 			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
148 			    OFFICE_TAG, pn->office);
149 			oddfield = demi_print(tbuf, oddfield);
150 		}
151 		if (pn->officephone) {
152 			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
153 			    OFFICE_PHONE_TAG, prphone(pn->officephone));
154 			oddfield = demi_print(tbuf, oddfield);
155 		}
156 	}
157 	if (pn->homephone) {
158 		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s", "Home Phone",
159 		    prphone(pn->homephone));
160 		oddfield = demi_print(tbuf, oddfield);
161 	}
162 	if (oddfield)
163 		putchar('\n');
164 
165 no_gecos:
166 	/*
167 	 * long format con't:
168 	 * if logged in
169 	 *	terminal
170 	 *	idle time
171 	 *	if messages allowed
172 	 *	where logged in from
173 	 * if not logged in
174 	 *	when last logged in
175 	 */
176 	/* find out longest device name for this user for formatting */
177 	for (w = pn->whead, maxlen = -1; w != NULL; w = w->next)
178 		if ((len = strlen(w->tty)) > maxlen)
179 			maxlen = len;
180 	/* find rest of entries for user */
181 	for (w = pn->whead; w != NULL; w = w->next) {
182 		if (w->info == LOGGEDIN) {
183 			tp = localtime(&w->loginat);
184 			strftime(t, sizeof(t),
185 			    d_first ? "%a %e %b %R (%Z)" : "%a %b %e %R (%Z)",
186 			    tp);
187 			cpr = printf("On since %s on %s", t, w->tty);
188 			/*
189 			 * idle time is tough; if have one, print a comma,
190 			 * then spaces to pad out the device name, then the
191 			 * idle time.  Follow with a comma if a remote login.
192 			 */
193 			delta = gmtime(&w->idletime);
194 			if (delta->tm_yday || delta->tm_hour || delta->tm_min) {
195 				cpr += printf("%-*s idle ",
196 				    maxlen - (int)strlen(w->tty) + 1, ",");
197 				if (delta->tm_yday > 0) {
198 					cpr += printf("%d day%s ",
199 					   delta->tm_yday,
200 					   delta->tm_yday == 1 ? "" : "s");
201 				}
202 				cpr += printf("%d:%02d",
203 				    delta->tm_hour, delta->tm_min);
204 				if (*w->host) {
205 					putchar(',');
206 					++cpr;
207 				}
208 			}
209 			if (!w->writable)
210 				cpr += printf(" (messages off)");
211 		} else if (w->loginat == 0) {
212 			cpr = printf("Never logged in.");
213 		} else {
214 			tp = localtime(&w->loginat);
215 			if (now - w->loginat > 86400 * 365 / 2) {
216 				strftime(t, sizeof(t),
217 					 d_first ? "%a %e %b %R %Y (%Z)" :
218 						   "%a %b %e %R %Y (%Z)",
219 					 tp);
220 			} else {
221 				strftime(t, sizeof(t),
222 					 d_first ? "%a %e %b %R (%Z)" :
223 						   "%a %b %e %R (%Z)",
224 					 tp);
225 			}
226 			cpr = printf("Last login %s on %s", t, w->tty);
227 		}
228 		if (*w->host) {
229 			if (LINE_LEN < (cpr + 6 + strlen(w->host)))
230 				(void)printf("\n   ");
231 			(void)printf(" from %s", w->host);
232 		}
233 		putchar('\n');
234 	}
235 	if (pn->mailrecv == -1)
236 		printf("No Mail.\n");
237 	else if (pn->mailrecv > pn->mailread) {
238 		tp = localtime(&pn->mailrecv);
239 		strftime(t, sizeof(t),
240 			 d_first ? "%a %e %b %R %Y (%Z)" :
241 				   "%a %b %e %R %Y (%Z)",
242 			 tp);
243 		printf("New mail received %s\n", t);
244 		tp = localtime(&pn->mailread);
245 		strftime(t, sizeof(t),
246 			 d_first ? "%a %e %b %R %Y (%Z)" :
247 				   "%a %b %e %R %Y (%Z)",
248 			 tp);
249 		printf("     Unread since %s\n", t);
250 	} else {
251 		tp = localtime(&pn->mailread);
252 		strftime(t, sizeof(t),
253 			 d_first ? "%a %e %b %R %Y (%Z)" :
254 				   "%a %b %e %R %Y (%Z)",
255 			 tp);
256 		printf("Mail last read %s\n", t);
257 	}
258 }
259 
260 static int
261 demi_print(str, oddfield)
262 	char *str;
263 	int oddfield;
264 {
265 	static int lenlast;
266 	int lenthis, maxlen;
267 
268 	lenthis = strlen(str);
269 	if (oddfield) {
270 		/*
271 		 * We left off on an odd number of fields.  If we haven't
272 		 * crossed the midpoint of the screen, and we have room for
273 		 * the next field, print it on the same line; otherwise,
274 		 * print it on a new line.
275 		 *
276 		 * Note: we insist on having the right hand fields start
277 		 * no less than 5 tabs out.
278 		 */
279 		maxlen = 5 * TAB_LEN;
280 		if (maxlen < lenlast)
281 			maxlen = lenlast;
282 		if (((((maxlen / TAB_LEN) + 1) * TAB_LEN) +
283 		    lenthis) <= LINE_LEN) {
284 			while(lenlast < (4 * TAB_LEN)) {
285 				putchar('\t');
286 				lenlast += TAB_LEN;
287 			}
288 			(void)printf("\t%s\n", str);	/* force one tab */
289 		} else {
290 			(void)printf("\n%s", str);	/* go to next line */
291 			oddfield = !oddfield;	/* this'll be undone below */
292 		}
293 	} else
294 		(void)printf("%s", str);
295 	oddfield = !oddfield;			/* toggle odd/even marker */
296 	lenlast = lenthis;
297 	return(oddfield);
298 }
299 
300 int
301 show_text(directory, file_name, header)
302 	const char *directory, *file_name, *header;
303 {
304 	struct stat sb;
305 	FILE *fp;
306 	int ch, cnt;
307 	char *p, lastc;
308 	int fd, nr;
309 
310 	lastc = '\0';
311 
312 	(void)snprintf(tbuf, sizeof(tbuf), "%s/%s", directory, file_name);
313 	if ((fd = open(tbuf, O_RDONLY)) < 0 || fstat(fd, &sb) ||
314 	    sb.st_size == 0)
315 		return(0);
316 
317 	/* If short enough, and no newlines, show it on a single line.*/
318 	if (sb.st_size <= LINE_LEN - strlen(header) - 5) {
319 		nr = read(fd, tbuf, sizeof(tbuf));
320 		if (nr <= 0) {
321 			(void)close(fd);
322 			return(0);
323 		}
324 		for (p = tbuf, cnt = nr; cnt--; ++p)
325 			if (*p == '\n')
326 				break;
327 		if (cnt <= 1) {
328 			if (*header != '\0')
329 				(void)printf("%s: ", header);
330 			for (p = tbuf, cnt = nr; cnt--; ++p)
331 				if (*p != '\r')
332 					vputc(lastc = *p);
333 			if (lastc != '\n')
334 				(void)putchar('\n');
335 			(void)close(fd);
336 			return(1);
337 		}
338 		else
339 			(void)lseek(fd, 0L, SEEK_SET);
340 	}
341 	if ((fp = fdopen(fd, "r")) == NULL)
342 		return(0);
343 	if (*header != '\0')
344 		(void)printf("%s:\n", header);
345 	while ((ch = getc(fp)) != EOF)
346 		if (ch != '\r')
347 			vputc(lastc = ch);
348 	if (lastc != '\n')
349 		(void)putchar('\n');
350 	(void)fclose(fp);
351 	return(1);
352 }
353 
354 static void
355 vputc(ch)
356 	unsigned char ch;
357 {
358 	int meta;
359 
360 	if (!isprint(ch) && !isascii(ch)) {
361 		(void)putchar('M');
362 		(void)putchar('-');
363 		ch = toascii(ch);
364 		meta = 1;
365 	} else
366 		meta = 0;
367 	if (isprint(ch) || (!meta && (ch == ' ' || ch == '\t' || ch == '\n')))
368 		(void)putchar(ch);
369 	else {
370 		(void)putchar('^');
371 		(void)putchar(ch == '\177' ? '?' : ch | 0100);
372 	}
373 }
374