xref: /freebsd/usr.bin/finger/lprint.c (revision 39beb93c)
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("$FreeBSD$");
45 
46 #include <sys/types.h>
47 #include <sys/socket.h>
48 #include <sys/stat.h>
49 #include <sys/time.h>
50 #include <ctype.h>
51 #include <db.h>
52 #include <err.h>
53 #include <fcntl.h>
54 #include <langinfo.h>
55 #include <paths.h>
56 #include <pwd.h>
57 #include <stdio.h>
58 #include <string.h>
59 #include <unistd.h>
60 #include <utmp.h>
61 #include "finger.h"
62 #include "pathnames.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(void)
73 {
74 	PERSON *pn;
75 	int sflag, r;
76 	PERSON *tmp;
77 	DBT data, key;
78 
79 	for (sflag = R_FIRST;; sflag = R_NEXT) {
80 		r = (*db->seq)(db, &key, &data, sflag);
81 		if (r == -1)
82 			err(1, "db seq");
83 		if (r == 1)
84 			break;
85 		memmove(&tmp, data.data, sizeof tmp);
86 		pn = tmp;
87 		if (sflag != R_FIRST)
88 			putchar('\n');
89 		lprint(pn);
90 		if (!pplan) {
91 			(void)show_text(pn->dir,
92 			    _PATH_FORWARD, "Mail forwarded to");
93 			(void)show_text(pn->dir, _PATH_PROJECT, "Project");
94 			if (!show_text(pn->dir, _PATH_PLAN, "Plan"))
95 				(void)printf("No Plan.\n");
96 			(void)show_text(pn->dir,
97 			    _PATH_PUBKEY, "Public key");
98 		}
99 	}
100 }
101 
102 static void
103 lprint(PERSON *pn)
104 {
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 	if (gflag)
128 		goto no_gecos;
129 	/*
130 	 * try and print office, office phone, and home phone on one line;
131 	 * if that fails, do line filling so it looks nice.
132 	 */
133 #define	OFFICE_TAG		"Office"
134 #define	OFFICE_PHONE_TAG	"Office Phone"
135 	oddfield = 0;
136 	if (pn->office && pn->officephone &&
137 	    strlen(pn->office) + strlen(pn->officephone) +
138 	    sizeof(OFFICE_TAG) + 2 <= 5 * TAB_LEN) {
139 		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s, %s",
140 		    OFFICE_TAG, pn->office, prphone(pn->officephone));
141 		oddfield = demi_print(tbuf, oddfield);
142 	} else {
143 		if (pn->office) {
144 			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
145 			    OFFICE_TAG, pn->office);
146 			oddfield = demi_print(tbuf, oddfield);
147 		}
148 		if (pn->officephone) {
149 			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
150 			    OFFICE_PHONE_TAG, prphone(pn->officephone));
151 			oddfield = demi_print(tbuf, oddfield);
152 		}
153 	}
154 	if (pn->homephone) {
155 		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s", "Home Phone",
156 		    prphone(pn->homephone));
157 		oddfield = demi_print(tbuf, oddfield);
158 	}
159 	if (oddfield)
160 		putchar('\n');
161 
162 no_gecos:
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),
182 			    d_first ? "%a %e %b %R (%Z)" : "%a %b %e %R (%Z)",
183 			    tp);
184 			cpr = printf("On since %s on %s", t, 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 (w->idletime != -1 && (delta->tm_yday ||
192 			    delta->tm_hour || delta->tm_min)) {
193 				cpr += printf("%-*s idle ",
194 				    maxlen - (int)strlen(w->tty) + 1, ",");
195 				if (delta->tm_yday > 0) {
196 					cpr += printf("%d day%s ",
197 					   delta->tm_yday,
198 					   delta->tm_yday == 1 ? "" : "s");
199 				}
200 				cpr += printf("%d:%02d",
201 				    delta->tm_hour, delta->tm_min);
202 				if (*w->host) {
203 					putchar(',');
204 					++cpr;
205 				}
206 			}
207 			if (!w->writable)
208 				cpr += printf(" (messages off)");
209 		} else if (w->loginat == 0) {
210 			cpr = printf("Never logged in.");
211 		} else {
212 			tp = localtime(&w->loginat);
213 			if (now - w->loginat > 86400 * 365 / 2) {
214 				strftime(t, sizeof(t),
215 					 d_first ? "%a %e %b %R %Y (%Z)" :
216 						   "%a %b %e %R %Y (%Z)",
217 					 tp);
218 			} else {
219 				strftime(t, sizeof(t),
220 					 d_first ? "%a %e %b %R (%Z)" :
221 						   "%a %b %e %R (%Z)",
222 					 tp);
223 			}
224 			cpr = printf("Last login %s on %s", t, w->tty);
225 		}
226 		if (*w->host) {
227 			if (LINE_LEN < (cpr + 6 + strlen(w->host)))
228 				(void)printf("\n   ");
229 			(void)printf(" from %s", w->host);
230 		}
231 		putchar('\n');
232 	}
233 	if (pn->mailrecv == -1)
234 		printf("No Mail.\n");
235 	else if (pn->mailrecv > pn->mailread) {
236 		tp = localtime(&pn->mailrecv);
237 		strftime(t, sizeof(t),
238 			 d_first ? "%a %e %b %R %Y (%Z)" :
239 				   "%a %b %e %R %Y (%Z)",
240 			 tp);
241 		printf("New mail received %s\n", t);
242 		tp = localtime(&pn->mailread);
243 		strftime(t, sizeof(t),
244 			 d_first ? "%a %e %b %R %Y (%Z)" :
245 				   "%a %b %e %R %Y (%Z)",
246 			 tp);
247 		printf("     Unread since %s\n", t);
248 	} else {
249 		tp = localtime(&pn->mailread);
250 		strftime(t, sizeof(t),
251 			 d_first ? "%a %e %b %R %Y (%Z)" :
252 				   "%a %b %e %R %Y (%Z)",
253 			 tp);
254 		printf("Mail last read %s\n", t);
255 	}
256 }
257 
258 static int
259 demi_print(char *str, int oddfield)
260 {
261 	static int lenlast;
262 	int lenthis, maxlen;
263 
264 	lenthis = strlen(str);
265 	if (oddfield) {
266 		/*
267 		 * We left off on an odd number of fields.  If we haven't
268 		 * crossed the midpoint of the screen, and we have room for
269 		 * the next field, print it on the same line; otherwise,
270 		 * print it on a new line.
271 		 *
272 		 * Note: we insist on having the right hand fields start
273 		 * no less than 5 tabs out.
274 		 */
275 		maxlen = 5 * TAB_LEN;
276 		if (maxlen < lenlast)
277 			maxlen = lenlast;
278 		if (((((maxlen / TAB_LEN) + 1) * TAB_LEN) +
279 		    lenthis) <= LINE_LEN) {
280 			while(lenlast < (4 * TAB_LEN)) {
281 				putchar('\t');
282 				lenlast += TAB_LEN;
283 			}
284 			(void)printf("\t%s\n", str);	/* force one tab */
285 		} else {
286 			(void)printf("\n%s", str);	/* go to next line */
287 			oddfield = !oddfield;	/* this'll be undone below */
288 		}
289 	} else
290 		(void)printf("%s", str);
291 	oddfield = !oddfield;			/* toggle odd/even marker */
292 	lenlast = lenthis;
293 	return(oddfield);
294 }
295 
296 int
297 show_text(const char *directory, const char *file_name, const char *header)
298 {
299 	struct stat sb;
300 	FILE *fp;
301 	int ch, cnt;
302 	char *p, lastc;
303 	int fd, nr;
304 
305 	lastc = '\0';
306 
307 	(void)snprintf(tbuf, sizeof(tbuf), "%s/%s", directory, file_name);
308 	if ((fd = open(tbuf, O_RDONLY)) < 0 || fstat(fd, &sb) ||
309 	    sb.st_size == 0)
310 		return(0);
311 
312 	/* If short enough, and no newlines, show it on a single line.*/
313 	if (sb.st_size <= LINE_LEN - strlen(header) - 5) {
314 		nr = read(fd, tbuf, sizeof(tbuf));
315 		if (nr <= 0) {
316 			(void)close(fd);
317 			return(0);
318 		}
319 		for (p = tbuf, cnt = nr; cnt--; ++p)
320 			if (*p == '\n')
321 				break;
322 		if (cnt <= 1) {
323 			if (*header != '\0')
324 				(void)printf("%s: ", header);
325 			for (p = tbuf, cnt = nr; cnt--; ++p)
326 				if (*p != '\r')
327 					vputc(lastc = *p);
328 			if (lastc != '\n')
329 				(void)putchar('\n');
330 			(void)close(fd);
331 			return(1);
332 		}
333 		else
334 			(void)lseek(fd, 0L, SEEK_SET);
335 	}
336 	if ((fp = fdopen(fd, "r")) == NULL)
337 		return(0);
338 	if (*header != '\0')
339 		(void)printf("%s:\n", header);
340 	while ((ch = getc(fp)) != EOF)
341 		if (ch != '\r')
342 			vputc(lastc = ch);
343 	if (lastc != '\n')
344 		(void)putchar('\n');
345 	(void)fclose(fp);
346 	return(1);
347 }
348 
349 static void
350 vputc(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