xref: /openbsd/usr.bin/finger/lprint.c (revision 4bdff4be)
1 /*	$OpenBSD: lprint.c,v 1.13 2018/04/26 12:42:51 guenther Exp $	*/
2 
3 /*
4  * Copyright (c) 1989 The Regents of the University of California.
5  * 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 <stdio.h>
36 #include <string.h>
37 #include <time.h>
38 #include <ctype.h>
39 #include <paths.h>
40 #include <vis.h>
41 #include "finger.h"
42 #include "extern.h"
43 
44 #define	LINE_LEN	80
45 #define	TAB_LEN		8		/* 8 spaces between tabs */
46 #define	_PATH_PLAN	".plan"
47 #define	_PATH_PROJECT	".project"
48 
49 void
50 lflag_print(void)
51 {
52 	PERSON *pn;
53 
54 	for (pn = phead;;) {
55 		lprint(pn);
56 		if (!pplan) {
57 			(void)show_text(pn->dir, _PATH_PROJECT, "Project:");
58 			if (!show_text(pn->dir, _PATH_PLAN, "Plan:"))
59 				(void)printf("No Plan.\n");
60 		}
61 		if (!(pn = pn->next))
62 			break;
63 		putchar('\n');
64 	}
65 }
66 
67 void
68 lprint(PERSON *pn)
69 {
70 	struct tm *delta;
71 	WHERE *w;
72 	int cpr, len, maxlen;
73 	struct tm *tp;
74 	int oddfield;
75 	char *t, *tzn;
76 
77 	cpr = 0;
78 	/*
79 	 * long format --
80 	 *	login name
81 	 *	real name
82 	 *	home directory
83 	 *	shell
84 	 *	office, office phone, home phone if available
85 	 *	mail status
86 	 */
87 	(void)printf("Login: %-15s\t\t\tName: %s\nDirectory: %-25s",
88 	    pn->name, pn->realname, pn->dir);
89 	(void)printf("\tShell: %-s\n", *pn->shell ? pn->shell : _PATH_BSHELL);
90 
91 	/*
92 	 * try and print office, office phone, and home phone on one line;
93 	 * if that fails, do line filling so it looks nice.
94 	 */
95 #define	OFFICE_TAG		"Office"
96 #define	OFFICE_PHONE_TAG	"Office Phone"
97 	oddfield = 0;
98 	if (pn->office && pn->officephone &&
99 	    strlen(pn->office) + strlen(pn->officephone) +
100 	    sizeof(OFFICE_TAG) + 2 <= 5 * TAB_LEN) {
101 		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s, %s",
102 		    OFFICE_TAG, pn->office, prphone(pn->officephone));
103 		oddfield = demi_print(tbuf, oddfield);
104 	} else {
105 		if (pn->office) {
106 			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
107 			    OFFICE_TAG, pn->office);
108 			oddfield = demi_print(tbuf, oddfield);
109 		}
110 		if (pn->officephone) {
111 			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
112 			    OFFICE_PHONE_TAG, prphone(pn->officephone));
113 			oddfield = demi_print(tbuf, oddfield);
114 		}
115 	}
116 	if (pn->homephone) {
117 		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
118 		    "Home Phone", prphone(pn->homephone));
119 		oddfield = demi_print(tbuf, oddfield);
120 	}
121 	if (oddfield)
122 		putchar('\n');
123 
124 	/*
125 	 * long format con't:
126 	 * if logged in
127 	 *	terminal
128 	 *	idle time
129 	 *	if messages allowed
130 	 *	where logged in from
131 	 * if not logged in
132 	 *	when last logged in
133 	 */
134 	/* find out longest device name for this user for formatting */
135 	for (w = pn->whead, maxlen = -1; w != NULL; w = w->next)
136 		if ((len = strlen(w->tty)) > maxlen)
137 			maxlen = len;
138 	/* find rest of entries for user */
139 	for (w = pn->whead; w != NULL; w = w->next) {
140 		switch (w->info) {
141 		case LOGGEDIN:
142 			tp = localtime(&w->loginat);
143 			t = asctime(tp);
144 			tzn = tp->tm_zone;
145 			cpr = printf("On since %.16s (%s) on %s",
146 			    t, tzn, w->tty);
147 			/*
148 			 * idle time is tough; if have one, print a comma,
149 			 * then spaces to pad out the device name, then the
150 			 * idle time.  Follow with a comma if a remote login.
151 			 */
152 			delta = gmtime(&w->idletime);
153 			if (delta->tm_yday || delta->tm_hour || delta->tm_min) {
154 				cpr += printf("%-*s idle ",
155 				    (int)(maxlen - strlen(w->tty) + 1), ",");
156 				if (delta->tm_yday > 0) {
157 					cpr += printf("%d day%s ",
158 					   delta->tm_yday,
159 					   delta->tm_yday == 1 ? "" : "s");
160 				}
161 				cpr += printf("%d:%02d",
162 				    delta->tm_hour, delta->tm_min);
163 				if (*w->host) {
164 					putchar(',');
165 					++cpr;
166 				}
167 			}
168 			if (!w->writable)
169 				cpr += printf(" (messages off)");
170 			break;
171 		case LASTLOG:
172 			if (w->loginat == 0) {
173 				(void)printf("Never logged in.");
174 				break;
175 			}
176 			tp = localtime(&w->loginat);
177 			t = asctime(tp);
178 			tzn = tp->tm_zone;
179 			if (now - w->loginat > SIXMONTHS)
180 				cpr =
181 				    printf("Last login %.16s %.4s (%s) on %s",
182 				    t, t + 20, tzn, w->tty);
183 			else
184 				cpr = printf("Last login %.16s (%s) on %s",
185 				    t, tzn, w->tty);
186 			break;
187 		}
188 		if (*w->host) {
189 			if (LINE_LEN < (cpr + 6 + strlen(w->host)))
190 				(void)printf("\n   ");
191 			(void)printf(" from %s", w->host);
192 		}
193 		putchar('\n');
194 	}
195 	if (pn->mailrecv == -1)
196 		printf("No Mail.\n");
197 	else if (pn->mailrecv > pn->mailread) {
198 		tp = localtime(&pn->mailrecv);
199 		t = asctime(tp);
200 		tzn = tp->tm_zone;
201 		printf("New mail received %.16s %.4s (%s)\n", t, t + 20, tzn);
202 		tp = localtime(&pn->mailread);
203 		t = asctime(tp);
204 		tzn = tp->tm_zone;
205 		printf("     Unread since %.16s %.4s (%s)\n", t, t + 20, tzn);
206 	} else {
207 		tp = localtime(&pn->mailread);
208 		t = asctime(tp);
209 		tzn = tp->tm_zone;
210 		printf("Mail last read %.16s %.4s (%s)\n", t, t + 20, tzn);
211 	}
212 }
213 
214 int
215 demi_print(char *str, int oddfield)
216 {
217 	static int lenlast;
218 	int lenthis, maxlen;
219 
220 	lenthis = strlen(str);
221 	if (oddfield) {
222 		/*
223 		 * We left off on an odd number of fields.  If we haven't
224 		 * crossed the midpoint of the screen, and we have room for
225 		 * the next field, print it on the same line; otherwise,
226 		 * print it on a new line.
227 		 *
228 		 * Note: we insist on having the right hand fields start
229 		 * no less than 5 tabs out.
230 		 */
231 		maxlen = 5 * TAB_LEN;
232 		if (maxlen < lenlast)
233 			maxlen = lenlast;
234 		if (((((maxlen / TAB_LEN) + 1) * TAB_LEN) +
235 		    lenthis) <= LINE_LEN) {
236 			while(lenlast < (4 * TAB_LEN)) {
237 				putchar('\t');
238 				lenlast += TAB_LEN;
239 			}
240 			(void)printf("\t%s\n", str);	/* force one tab */
241 		} else {
242 			(void)printf("\n%s", str);	/* go to next line */
243 			oddfield = !oddfield;	/* this'll be undone below */
244 		}
245 	} else
246 		(void)printf("%s", str);
247 	oddfield = !oddfield;			/* toggle odd/even marker */
248 	lenlast = lenthis;
249 	return (oddfield);
250 }
251 
252 int
253 show_text(char *directory, char *file_name, char *header)
254 {
255 	int ch, lastc;
256 	FILE *fp;
257 
258 	lastc = 0;
259 	(void)snprintf(tbuf, sizeof(tbuf), "%s/%s", directory, file_name);
260 	if ((fp = fopen(tbuf, "r")) == NULL)
261 		return (0);
262 	(void)printf("%s\n", header);
263 	while ((ch = getc(fp)) != EOF)
264 		vputc(lastc = ch);
265 	if (lastc != '\n')
266 		(void)putchar('\n');
267 	(void)fclose(fp);
268 	return (1);
269 }
270 
271 void
272 vputc(int ch)
273 {
274 	char visout[5], *s2;
275 
276 	ch = toascii(ch);
277 	vis(visout, ch, VIS_SAFE|VIS_NOSLASH, 0);
278 	for (s2 = visout; *s2; s2++)
279 		(void)putchar(*s2);
280 }
281