1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
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. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#include <sys/types.h>
36#include <sys/socket.h>
37#include <sys/stat.h>
38#include <sys/time.h>
39#include <ctype.h>
40#include <db.h>
41#include <err.h>
42#include <fcntl.h>
43#include <langinfo.h>
44#include <paths.h>
45#include <pwd.h>
46#include <stdio.h>
47#include <string.h>
48#include <unistd.h>
49#include <utmpx.h>
50#include "finger.h"
51#include "pathnames.h"
52
53#define	LINE_LEN	80
54#define	TAB_LEN		8		/* 8 spaces between tabs */
55
56static int	demi_print(char *, int);
57static void	lprint(PERSON *);
58static void     vputc(unsigned char);
59
60void
61lflag_print(void)
62{
63	PERSON *pn;
64	int sflag, r;
65	PERSON *tmp;
66	DBT data, key;
67
68	for (sflag = R_FIRST;; sflag = R_NEXT) {
69		r = (*db->seq)(db, &key, &data, sflag);
70		if (r == -1)
71			err(1, "db seq");
72		if (r == 1)
73			break;
74		memmove(&tmp, data.data, sizeof tmp);
75		pn = tmp;
76		if (sflag != R_FIRST)
77			putchar('\n');
78		lprint(pn);
79		if (!pplan) {
80			(void)show_text(pn->dir,
81			    _PATH_FORWARD, "Mail forwarded to");
82			(void)show_text(pn->dir, _PATH_PROJECT, "Project");
83			if (!show_text(pn->dir, _PATH_PLAN, "Plan"))
84				(void)printf("No Plan.\n");
85			(void)show_text(pn->dir,
86			    _PATH_PUBKEY, "Public key");
87		}
88	}
89}
90
91static void
92lprint(PERSON *pn)
93{
94	struct tm *delta;
95	WHERE *w;
96	int cpr, len, maxlen;
97	struct tm *tp;
98	int oddfield;
99	char t[80];
100
101	if (d_first < 0)
102		d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
103	/*
104	 * long format --
105	 *	login name
106	 *	real name
107	 *	home directory
108	 *	shell
109	 *	office, office phone, home phone if available
110	 *	mail status
111	 */
112	(void)printf("Login: %-15s\t\t\tName: %s\nDirectory: %-25s",
113	    pn->name, pn->realname, pn->dir);
114	(void)printf("\tShell: %-s\n", *pn->shell ? pn->shell : _PATH_BSHELL);
115
116	if (gflag)
117		goto no_gecos;
118	/*
119	 * try and print office, office phone, and home phone on one line;
120	 * if that fails, do line filling so it looks nice.
121	 */
122#define	OFFICE_TAG		"Office"
123#define	OFFICE_PHONE_TAG	"Office Phone"
124	oddfield = 0;
125	if (pn->office && pn->officephone &&
126	    strlen(pn->office) + strlen(pn->officephone) +
127	    sizeof(OFFICE_TAG) + 2 <= 5 * TAB_LEN) {
128		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s, %s",
129		    OFFICE_TAG, pn->office, prphone(pn->officephone));
130		oddfield = demi_print(tbuf, oddfield);
131	} else {
132		if (pn->office) {
133			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
134			    OFFICE_TAG, pn->office);
135			oddfield = demi_print(tbuf, oddfield);
136		}
137		if (pn->officephone) {
138			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
139			    OFFICE_PHONE_TAG, prphone(pn->officephone));
140			oddfield = demi_print(tbuf, oddfield);
141		}
142	}
143	if (pn->homephone) {
144		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s", "Home Phone",
145		    prphone(pn->homephone));
146		oddfield = demi_print(tbuf, oddfield);
147	}
148	if (oddfield)
149		putchar('\n');
150
151no_gecos:
152	/*
153	 * long format con't:
154	 * if logged in
155	 *	terminal
156	 *	idle time
157	 *	if messages allowed
158	 *	where logged in from
159	 * if not logged in
160	 *	when last logged in
161	 */
162	/* find out longest device name for this user for formatting */
163	for (w = pn->whead, maxlen = -1; w != NULL; w = w->next)
164		if ((len = strlen(w->tty)) > maxlen)
165			maxlen = len;
166	/* find rest of entries for user */
167	for (w = pn->whead; w != NULL; w = w->next) {
168		if (w->info == LOGGEDIN) {
169			tp = localtime(&w->loginat);
170			strftime(t, sizeof(t),
171			    d_first ? "%a %e %b %R (%Z)" : "%a %b %e %R (%Z)",
172			    tp);
173			cpr = printf("On since %s on %s", t, w->tty);
174			/*
175			 * idle time is tough; if have one, print a comma,
176			 * then spaces to pad out the device name, then the
177			 * idle time.  Follow with a comma if a remote login.
178			 */
179			delta = gmtime(&w->idletime);
180			if (w->idletime != -1 && (delta->tm_yday ||
181			    delta->tm_hour || delta->tm_min)) {
182				cpr += printf("%-*s idle ",
183				    maxlen - (int)strlen(w->tty) + 1, ",");
184				if (delta->tm_yday > 0) {
185					cpr += printf("%d day%s ",
186					   delta->tm_yday,
187					   delta->tm_yday == 1 ? "" : "s");
188				}
189				cpr += printf("%d:%02d",
190				    delta->tm_hour, delta->tm_min);
191				if (*w->host) {
192					putchar(',');
193					++cpr;
194				}
195			}
196			if (!w->writable)
197				cpr += printf(" (messages off)");
198		} else if (w->loginat == 0) {
199			cpr = printf("Never logged in.");
200		} else {
201			tp = localtime(&w->loginat);
202			if (now - w->loginat > 86400 * 365 / 2) {
203				strftime(t, sizeof(t),
204					 d_first ? "%a %e %b %R %Y (%Z)" :
205						   "%a %b %e %R %Y (%Z)",
206					 tp);
207			} else {
208				strftime(t, sizeof(t),
209					 d_first ? "%a %e %b %R (%Z)" :
210						   "%a %b %e %R (%Z)",
211					 tp);
212			}
213			cpr = printf("Last login %s on %s", t, w->tty);
214		}
215		if (*w->host) {
216			if (LINE_LEN < (cpr + 6 + strlen(w->host)))
217				(void)printf("\n   ");
218			(void)printf(" from %s", w->host);
219		}
220		putchar('\n');
221	}
222	if (pn->mailrecv == -1)
223		printf("No Mail.\n");
224	else if (pn->mailrecv > pn->mailread) {
225		tp = localtime(&pn->mailrecv);
226		strftime(t, sizeof(t),
227			 d_first ? "%a %e %b %R %Y (%Z)" :
228				   "%a %b %e %R %Y (%Z)",
229			 tp);
230		printf("New mail received %s\n", t);
231		tp = localtime(&pn->mailread);
232		strftime(t, sizeof(t),
233			 d_first ? "%a %e %b %R %Y (%Z)" :
234				   "%a %b %e %R %Y (%Z)",
235			 tp);
236		printf("     Unread since %s\n", t);
237	} else {
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("Mail last read %s\n", t);
244	}
245}
246
247static int
248demi_print(char *str, int oddfield)
249{
250	static int lenlast;
251	int lenthis, maxlen;
252
253	lenthis = strlen(str);
254	if (oddfield) {
255		/*
256		 * We left off on an odd number of fields.  If we haven't
257		 * crossed the midpoint of the screen, and we have room for
258		 * the next field, print it on the same line; otherwise,
259		 * print it on a new line.
260		 *
261		 * Note: we insist on having the right hand fields start
262		 * no less than 5 tabs out.
263		 */
264		maxlen = 5 * TAB_LEN;
265		if (maxlen < lenlast)
266			maxlen = lenlast;
267		if (((((maxlen / TAB_LEN) + 1) * TAB_LEN) +
268		    lenthis) <= LINE_LEN) {
269			while(lenlast < (4 * TAB_LEN)) {
270				putchar('\t');
271				lenlast += TAB_LEN;
272			}
273			(void)printf("\t%s\n", str);	/* force one tab */
274		} else {
275			(void)printf("\n%s", str);	/* go to next line */
276			oddfield = !oddfield;	/* this'll be undone below */
277		}
278	} else
279		(void)printf("%s", str);
280	oddfield = !oddfield;			/* toggle odd/even marker */
281	lenlast = lenthis;
282	return(oddfield);
283}
284
285int
286show_text(const char *directory, const char *file_name, const char *header)
287{
288	struct stat sb;
289	FILE *fp;
290	int ch, cnt;
291	char *p, lastc;
292	int fd, nr;
293
294	lastc = '\0';
295
296	(void)snprintf(tbuf, sizeof(tbuf), "%s/%s", directory, file_name);
297	if ((fd = open(tbuf, O_RDONLY)) < 0 || fstat(fd, &sb) ||
298	    sb.st_size == 0)
299		return(0);
300
301	/* If short enough, and no newlines, show it on a single line.*/
302	if (sb.st_size <= (off_t)(LINE_LEN - strlen(header) - 5)) {
303		nr = read(fd, tbuf, sizeof(tbuf));
304		if (nr <= 0) {
305			(void)close(fd);
306			return(0);
307		}
308		for (p = tbuf, cnt = nr; cnt--; ++p)
309			if (*p == '\n')
310				break;
311		if (cnt <= 1) {
312			if (*header != '\0')
313				(void)printf("%s: ", header);
314			for (p = tbuf, cnt = nr; cnt--; ++p)
315				if (*p != '\r')
316					vputc(lastc = *p);
317			if (lastc != '\n')
318				(void)putchar('\n');
319			(void)close(fd);
320			return(1);
321		}
322		else
323			(void)lseek(fd, 0L, SEEK_SET);
324	}
325	if ((fp = fdopen(fd, "r")) == NULL)
326		return(0);
327	if (*header != '\0')
328		(void)printf("%s:\n", header);
329	while ((ch = getc(fp)) != EOF)
330		if (ch != '\r')
331			vputc(lastc = ch);
332	if (lastc != '\n')
333		(void)putchar('\n');
334	(void)fclose(fp);
335	return(1);
336}
337
338static void
339vputc(unsigned char ch)
340{
341	int meta;
342
343	if (!isprint(ch) && !isascii(ch)) {
344		(void)putchar('M');
345		(void)putchar('-');
346		ch = toascii(ch);
347		meta = 1;
348	} else
349		meta = 0;
350	if (isprint(ch) || (!meta && (ch == ' ' || ch == '\t' || ch == '\n')))
351		(void)putchar(ch);
352	else {
353		(void)putchar('^');
354		(void)putchar(ch == '\177' ? '?' : ch | 0100);
355	}
356}
357