xref: /freebsd/usr.bin/finger/lprint.c (revision 54ab3ed82b639b593fb0fe6db845e38a9d18970e)
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 #include <sys/cdefs.h>
38 
39 __FBSDID("$FreeBSD$");
40 
41 #ifndef lint
42 static const char sccsid[] = "@(#)lprint.c	8.3 (Berkeley) 4/28/95";
43 #endif
44 
45 #include <sys/stat.h>
46 #include <ctype.h>
47 #include <db.h>
48 #include <err.h>
49 #include <fcntl.h>
50 #include <langinfo.h>
51 #include <paths.h>
52 #include <pwd.h>
53 #include <stdio.h>
54 #include <string.h>
55 #include <unistd.h>
56 #include <utmp.h>
57 #include "finger.h"
58 #include "pathnames.h"
59 #include "extern.h"
60 
61 #define	LINE_LEN	80
62 #define	TAB_LEN		8		/* 8 spaces between tabs */
63 
64 static int	demi_print __P((char *, int));
65 static void	lprint __P((PERSON *));
66 static void     vputc __P((unsigned char));
67 
68 void
69 lflag_print()
70 {
71 	extern int pplan;
72 	PERSON *pn;
73 	int sflag, r;
74 	PERSON *tmp;
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(1, "db seq");
81 		if (r == 1)
82 			break;
83 		memmove(&tmp, data.data, sizeof tmp);
84 		pn = tmp;
85 		if (sflag != R_FIRST)
86 			putchar('\n');
87 		lprint(pn);
88 		if (!pplan) {
89 			(void)show_text(pn->dir,
90 			    _PATH_FORWARD, "Mail forwarded to");
91 			(void)show_text(pn->dir, _PATH_PROJECT, "Project");
92 			if (!show_text(pn->dir, _PATH_PLAN, "Plan"))
93 				(void)printf("No Plan.\n");
94 			(void)show_text(pn->dir,
95 			    _PATH_PUBKEY, "Public key");
96 		}
97 	}
98 }
99 
100 static void
101 lprint(pn)
102 	PERSON *pn;
103 {
104 	extern time_t now;
105 	struct tm *delta;
106 	WHERE *w;
107 	int cpr, len, maxlen;
108 	struct tm *tp;
109 	int oddfield;
110 	char t[80];
111 
112 	if (d_first < 0)
113 		d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
114 	/*
115 	 * long format --
116 	 *	login name
117 	 *	real name
118 	 *	home directory
119 	 *	shell
120 	 *	office, office phone, home phone if available
121 	 *	mail status
122 	 */
123 	(void)printf("Login: %-15s\t\t\tName: %s\nDirectory: %-25s",
124 	    pn->name, pn->realname, pn->dir);
125 	(void)printf("\tShell: %-s\n", *pn->shell ? pn->shell : _PATH_BSHELL);
126 
127 	/*
128 	 * try and print office, office phone, and home phone on one line;
129 	 * if that fails, do line filling so it looks nice.
130 	 */
131 #define	OFFICE_TAG		"Office"
132 #define	OFFICE_PHONE_TAG	"Office Phone"
133 	oddfield = 0;
134 	if (pn->office && pn->officephone &&
135 	    strlen(pn->office) + strlen(pn->officephone) +
136 	    sizeof(OFFICE_TAG) + 2 <= 5 * TAB_LEN) {
137 		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s, %s",
138 		    OFFICE_TAG, pn->office, prphone(pn->officephone));
139 		oddfield = demi_print(tbuf, oddfield);
140 	} else {
141 		if (pn->office) {
142 			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
143 			    OFFICE_TAG, pn->office);
144 			oddfield = demi_print(tbuf, oddfield);
145 		}
146 		if (pn->officephone) {
147 			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
148 			    OFFICE_PHONE_TAG, prphone(pn->officephone));
149 			oddfield = demi_print(tbuf, oddfield);
150 		}
151 	}
152 	if (pn->homephone) {
153 		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s", "Home Phone",
154 		    prphone(pn->homephone));
155 		oddfield = demi_print(tbuf, oddfield);
156 	}
157 	if (oddfield)
158 		putchar('\n');
159 
160 	/*
161 	 * long format con't:
162 	 * if logged in
163 	 *	terminal
164 	 *	idle time
165 	 *	if messages allowed
166 	 *	where logged in from
167 	 * if not logged in
168 	 *	when last logged in
169 	 */
170 	/* find out longest device name for this user for formatting */
171 	for (w = pn->whead, maxlen = -1; w != NULL; w = w->next)
172 		if ((len = strlen(w->tty)) > maxlen)
173 			maxlen = len;
174 	/* find rest of entries for user */
175 	for (w = pn->whead; w != NULL; w = w->next) {
176 		if (w->info == LOGGEDIN) {
177 			tp = localtime(&w->loginat);
178 			strftime(t, sizeof(t),
179 			    d_first ? "%a %e %b %R (%Z)" : "%a %b %e %R (%Z)",
180 			    tp);
181 			cpr = printf("On since %s on %s", t, w->tty);
182 			/*
183 			 * idle time is tough; if have one, print a comma,
184 			 * then spaces to pad out the device name, then the
185 			 * idle time.  Follow with a comma if a remote login.
186 			 */
187 			delta = gmtime(&w->idletime);
188 			if (delta->tm_yday || delta->tm_hour || delta->tm_min) {
189 				cpr += printf("%-*s idle ",
190 				    maxlen - strlen(w->tty) + 1, ",");
191 				if (delta->tm_yday > 0) {
192 					cpr += printf("%d day%s ",
193 					   delta->tm_yday,
194 					   delta->tm_yday == 1 ? "" : "s");
195 				}
196 				cpr += printf("%d:%02d",
197 				    delta->tm_hour, delta->tm_min);
198 				if (*w->host) {
199 					putchar(',');
200 					++cpr;
201 				}
202 			}
203 			if (!w->writable)
204 				cpr += printf(" (messages off)");
205 		} else if (w->loginat == 0) {
206 			cpr = printf("Never logged in.");
207 		} else {
208 			tp = localtime(&w->loginat);
209 			if (now - w->loginat > 86400 * 365 / 2) {
210 				strftime(t, sizeof(t),
211 					 d_first ? "%a %e %b %R %Y (%Z)" :
212 						   "%a %b %e %R %Y (%Z)",
213 					 tp);
214 			} else {
215 				strftime(t, sizeof(t),
216 					 d_first ? "%a %e %b %R (%Z)" :
217 						   "%a %b %e %R (%Z)",
218 					 tp);
219 			}
220 			cpr = printf("Last login %s on %s", t, 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),
234 			 d_first ? "%a %e %b %R %Y (%Z)" :
235 				   "%a %b %e %R %Y (%Z)",
236 			 tp);
237 		printf("New mail received %s\n", t);
238 		tp = localtime(&pn->mailread);
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("     Unread since %s\n", t);
244 	} else {
245 		tp = localtime(&pn->mailread);
246 		strftime(t, sizeof(t),
247 			 d_first ? "%a %e %b %R %Y (%Z)" :
248 				   "%a %b %e %R %Y (%Z)",
249 			 tp);
250 		printf("Mail last read %s\n", t);
251 	}
252 }
253 
254 static int
255 demi_print(str, oddfield)
256 	char *str;
257 	int oddfield;
258 {
259 	static int lenlast;
260 	int lenthis, maxlen;
261 
262 	lenthis = strlen(str);
263 	if (oddfield) {
264 		/*
265 		 * We left off on an odd number of fields.  If we haven't
266 		 * crossed the midpoint of the screen, and we have room for
267 		 * the next field, print it on the same line; otherwise,
268 		 * print it on a new line.
269 		 *
270 		 * Note: we insist on having the right hand fields start
271 		 * no less than 5 tabs out.
272 		 */
273 		maxlen = 5 * TAB_LEN;
274 		if (maxlen < lenlast)
275 			maxlen = lenlast;
276 		if (((((maxlen / TAB_LEN) + 1) * TAB_LEN) +
277 		    lenthis) <= LINE_LEN) {
278 			while(lenlast < (4 * TAB_LEN)) {
279 				putchar('\t');
280 				lenlast += TAB_LEN;
281 			}
282 			(void)printf("\t%s\n", str);	/* force one tab */
283 		} else {
284 			(void)printf("\n%s", str);	/* go to next line */
285 			oddfield = !oddfield;	/* this'll be undone below */
286 		}
287 	} else
288 		(void)printf("%s", str);
289 	oddfield = !oddfield;			/* toggle odd/even marker */
290 	lenlast = lenthis;
291 	return(oddfield);
292 }
293 
294 int
295 show_text(directory, file_name, header)
296 	const char *directory, *file_name, *header;
297 {
298 	struct stat sb;
299 	FILE *fp;
300 	int ch, cnt;
301 	char *p, lastc;
302 	int fd, nr;
303 
304 	lastc = '\0';
305 
306 	(void)snprintf(tbuf, sizeof(tbuf), "%s/%s", directory, file_name);
307 	if ((fd = open(tbuf, O_RDONLY)) < 0 || fstat(fd, &sb) ||
308 	    sb.st_size == 0)
309 		return(0);
310 
311 	/* If short enough, and no newlines, show it on a single line.*/
312 	if (sb.st_size <= LINE_LEN - strlen(header) - 5) {
313 		nr = read(fd, tbuf, sizeof(tbuf));
314 		if (nr <= 0) {
315 			(void)close(fd);
316 			return(0);
317 		}
318 		for (p = tbuf, cnt = nr; cnt--; ++p)
319 			if (*p == '\n')
320 				break;
321 		if (cnt <= 1) {
322 			if (*header != '\0')
323 				(void)printf("%s: ", header);
324 			for (p = tbuf, cnt = nr; cnt--; ++p)
325 				if (*p != '\r')
326 					vputc(lastc = *p);
327 			if (lastc != '\n')
328 				(void)putchar('\n');
329 			(void)close(fd);
330 			return(1);
331 		}
332 		else
333 			(void)lseek(fd, 0L, SEEK_SET);
334 	}
335 	if ((fp = fdopen(fd, "r")) == NULL)
336 		return(0);
337 	if (*header != '\0')
338 		(void)printf("%s:\n", header);
339 	while ((ch = getc(fp)) != EOF)
340 		if (ch != '\r')
341 			vputc(lastc = ch);
342 	if (lastc != '\n')
343 		(void)putchar('\n');
344 	(void)fclose(fp);
345 	return(1);
346 }
347 
348 static void
349 vputc(ch)
350 	unsigned char ch;
351 {
352 	int meta;
353 
354 	if (!isprint(ch) && !isascii(ch)) {
355 		(void)putchar('M');
356 		(void)putchar('-');
357 		ch = toascii(ch);
358 		meta = 1;
359 	} else
360 		meta = 0;
361 	if (isprint(ch) || (!meta && (ch == ' ' || ch == '\t' || ch == '\n')))
362 		(void)putchar(ch);
363 	else {
364 		(void)putchar('^');
365 		(void)putchar(ch == '\177' ? '?' : ch | 0100);
366 	}
367 }
368