xref: /openbsd-src/usr.bin/finger/lprint.c (revision f2da64fbbbf1b03f09f390ab01267c93dfd77c4c)
1 /*	$OpenBSD: lprint.c,v 1.12 2015/03/15 00:41:28 millert 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 <sys/types.h>
36 #include <sys/file.h>
37 #include <sys/stat.h>
38 #include <sys/time.h>
39 #include <stdio.h>
40 #include <string.h>
41 #include <time.h>
42 #include <ctype.h>
43 #include <paths.h>
44 #include <vis.h>
45 #include "finger.h"
46 #include "extern.h"
47 
48 #define	LINE_LEN	80
49 #define	TAB_LEN		8		/* 8 spaces between tabs */
50 #define	_PATH_PLAN	".plan"
51 #define	_PATH_PROJECT	".project"
52 
53 void
54 lflag_print(void)
55 {
56 	PERSON *pn;
57 
58 	for (pn = phead;;) {
59 		lprint(pn);
60 		if (!pplan) {
61 			(void)show_text(pn->dir, _PATH_PROJECT, "Project:");
62 			if (!show_text(pn->dir, _PATH_PLAN, "Plan:"))
63 				(void)printf("No Plan.\n");
64 		}
65 		if (!(pn = pn->next))
66 			break;
67 		putchar('\n');
68 	}
69 }
70 
71 void
72 lprint(PERSON *pn)
73 {
74 	struct tm *delta;
75 	WHERE *w;
76 	int cpr, len, maxlen;
77 	struct tm *tp;
78 	int oddfield;
79 	char *t, *tzn;
80 
81 	cpr = 0;
82 	/*
83 	 * long format --
84 	 *	login name
85 	 *	real name
86 	 *	home directory
87 	 *	shell
88 	 *	office, office phone, home phone if available
89 	 *	mail status
90 	 */
91 	(void)printf("Login: %-15s\t\t\tName: %s\nDirectory: %-25s",
92 	    pn->name, pn->realname, pn->dir);
93 	(void)printf("\tShell: %-s\n", *pn->shell ? pn->shell : _PATH_BSHELL);
94 
95 	/*
96 	 * try and print office, office phone, and home phone on one line;
97 	 * if that fails, do line filling so it looks nice.
98 	 */
99 #define	OFFICE_TAG		"Office"
100 #define	OFFICE_PHONE_TAG	"Office Phone"
101 	oddfield = 0;
102 	if (pn->office && pn->officephone &&
103 	    strlen(pn->office) + strlen(pn->officephone) +
104 	    sizeof(OFFICE_TAG) + 2 <= 5 * TAB_LEN) {
105 		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s, %s",
106 		    OFFICE_TAG, pn->office, prphone(pn->officephone));
107 		oddfield = demi_print(tbuf, oddfield);
108 	} else {
109 		if (pn->office) {
110 			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
111 			    OFFICE_TAG, pn->office);
112 			oddfield = demi_print(tbuf, oddfield);
113 		}
114 		if (pn->officephone) {
115 			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
116 			    OFFICE_PHONE_TAG, prphone(pn->officephone));
117 			oddfield = demi_print(tbuf, oddfield);
118 		}
119 	}
120 	if (pn->homephone) {
121 		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
122 		    "Home Phone", prphone(pn->homephone));
123 		oddfield = demi_print(tbuf, oddfield);
124 	}
125 	if (oddfield)
126 		putchar('\n');
127 
128 	/*
129 	 * long format con't:
130 	 * if logged in
131 	 *	terminal
132 	 *	idle time
133 	 *	if messages allowed
134 	 *	where logged in from
135 	 * if not logged in
136 	 *	when last logged in
137 	 */
138 	/* find out longest device name for this user for formatting */
139 	for (w = pn->whead, maxlen = -1; w != NULL; w = w->next)
140 		if ((len = strlen(w->tty)) > maxlen)
141 			maxlen = len;
142 	/* find rest of entries for user */
143 	for (w = pn->whead; w != NULL; w = w->next) {
144 		switch (w->info) {
145 		case LOGGEDIN:
146 			tp = localtime(&w->loginat);
147 			t = asctime(tp);
148 			tzn = tp->tm_zone;
149 			cpr = printf("On since %.16s (%s) on %s",
150 			    t, tzn, w->tty);
151 			/*
152 			 * idle time is tough; if have one, print a comma,
153 			 * then spaces to pad out the device name, then the
154 			 * idle time.  Follow with a comma if a remote login.
155 			 */
156 			delta = gmtime(&w->idletime);
157 			if (delta->tm_yday || delta->tm_hour || delta->tm_min) {
158 				cpr += printf("%-*s idle ",
159 				    (int)(maxlen - strlen(w->tty) + 1), ",");
160 				if (delta->tm_yday > 0) {
161 					cpr += printf("%d day%s ",
162 					   delta->tm_yday,
163 					   delta->tm_yday == 1 ? "" : "s");
164 				}
165 				cpr += printf("%d:%02d",
166 				    delta->tm_hour, delta->tm_min);
167 				if (*w->host) {
168 					putchar(',');
169 					++cpr;
170 				}
171 			}
172 			if (!w->writable)
173 				cpr += printf(" (messages off)");
174 			break;
175 		case LASTLOG:
176 			if (w->loginat == 0) {
177 				(void)printf("Never logged in.");
178 				break;
179 			}
180 			tp = localtime(&w->loginat);
181 			t = asctime(tp);
182 			tzn = tp->tm_zone;
183 			if (now - w->loginat > SIXMONTHS)
184 				cpr =
185 				    printf("Last login %.16s %.4s (%s) on %s",
186 				    t, t + 20, tzn, w->tty);
187 			else
188 				cpr = printf("Last login %.16s (%s) on %s",
189 				    t, tzn, w->tty);
190 			break;
191 		}
192 		if (*w->host) {
193 			if (LINE_LEN < (cpr + 6 + strlen(w->host)))
194 				(void)printf("\n   ");
195 			(void)printf(" from %s", w->host);
196 		}
197 		putchar('\n');
198 	}
199 	if (pn->mailrecv == -1)
200 		printf("No Mail.\n");
201 	else if (pn->mailrecv > pn->mailread) {
202 		tp = localtime(&pn->mailrecv);
203 		t = asctime(tp);
204 		tzn = tp->tm_zone;
205 		printf("New mail received %.16s %.4s (%s)\n", t, t + 20, tzn);
206 		tp = localtime(&pn->mailread);
207 		t = asctime(tp);
208 		tzn = tp->tm_zone;
209 		printf("     Unread since %.16s %.4s (%s)\n", t, t + 20, tzn);
210 	} else {
211 		tp = localtime(&pn->mailread);
212 		t = asctime(tp);
213 		tzn = tp->tm_zone;
214 		printf("Mail last read %.16s %.4s (%s)\n", t, t + 20, tzn);
215 	}
216 }
217 
218 int
219 demi_print(char *str, int oddfield)
220 {
221 	static int lenlast;
222 	int lenthis, maxlen;
223 
224 	lenthis = strlen(str);
225 	if (oddfield) {
226 		/*
227 		 * We left off on an odd number of fields.  If we haven't
228 		 * crossed the midpoint of the screen, and we have room for
229 		 * the next field, print it on the same line; otherwise,
230 		 * print it on a new line.
231 		 *
232 		 * Note: we insist on having the right hand fields start
233 		 * no less than 5 tabs out.
234 		 */
235 		maxlen = 5 * TAB_LEN;
236 		if (maxlen < lenlast)
237 			maxlen = lenlast;
238 		if (((((maxlen / TAB_LEN) + 1) * TAB_LEN) +
239 		    lenthis) <= LINE_LEN) {
240 			while(lenlast < (4 * TAB_LEN)) {
241 				putchar('\t');
242 				lenlast += TAB_LEN;
243 			}
244 			(void)printf("\t%s\n", str);	/* force one tab */
245 		} else {
246 			(void)printf("\n%s", str);	/* go to next line */
247 			oddfield = !oddfield;	/* this'll be undone below */
248 		}
249 	} else
250 		(void)printf("%s", str);
251 	oddfield = !oddfield;			/* toggle odd/even marker */
252 	lenlast = lenthis;
253 	return (oddfield);
254 }
255 
256 int
257 show_text(char *directory, char *file_name, char *header)
258 {
259 	int ch, lastc;
260 	FILE *fp;
261 
262 	lastc = 0;
263 	(void)snprintf(tbuf, sizeof(tbuf), "%s/%s", directory, file_name);
264 	if ((fp = fopen(tbuf, "r")) == NULL)
265 		return (0);
266 	(void)printf("%s\n", header);
267 	while ((ch = getc(fp)) != EOF)
268 		vputc(lastc = ch);
269 	if (lastc != '\n')
270 		(void)putchar('\n');
271 	(void)fclose(fp);
272 	return (1);
273 }
274 
275 void
276 vputc(int ch)
277 {
278 	char visout[5], *s2;
279 
280 	ch = toascii(ch);
281 	vis(visout, ch, VIS_SAFE|VIS_NOSLASH, 0);
282 	for (s2 = visout; *s2; s2++)
283 		(void)putchar(*s2);
284 }
285