xref: /original-bsd/usr.bin/finger/lprint.c (revision 27393bdf)
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  * %sccs.include.redist.c%
9  */
10 
11 #ifndef lint
12 static char sccsid[] = "@(#)lprint.c	8.3 (Berkeley) 04/28/95";
13 #endif /* not lint */
14 
15 #include <sys/types.h>
16 #include <sys/stat.h>
17 #include <sys/time.h>
18 #include <fcntl.h>
19 #include <time.h>
20 #include <tzfile.h>
21 #include <db.h>
22 #include <err.h>
23 #include <pwd.h>
24 #include <utmp.h>
25 #include <errno.h>
26 #include <unistd.h>
27 #include <stdio.h>
28 #include <ctype.h>
29 #include <string.h>
30 #include <paths.h>
31 #include "finger.h"
32 
33 #define	LINE_LEN	80
34 #define	TAB_LEN		8		/* 8 spaces between tabs */
35 #define	_PATH_FORWARD	".forward"
36 #define	_PATH_PLAN	".plan"
37 #define	_PATH_PROJECT	".project"
38 
39 static int	demi_print __P((char *, int));
40 static void	lprint __P((PERSON *));
41 static int	show_text __P((char *, char *, char *));
42 static void	vputc __P((int));
43 
44 void
45 lflag_print()
46 {
47 	extern int pplan;
48 	register PERSON *pn;
49 	register int sflag, r;
50 	PERSON *tmp;
51 	DBT data, key;
52 
53 	for (sflag = R_FIRST;; sflag = R_NEXT) {
54 		r = (*db->seq)(db, &key, &data, sflag);
55 		if (r == -1)
56 			err(1, "db seq");
57 		if (r == 1)
58 			break;
59 		memmove(&tmp, data.data, sizeof tmp);
60 		pn = tmp;
61 		if (sflag != R_FIRST)
62 			putchar('\n');
63 		lprint(pn);
64 		if (!pplan) {
65 			(void)show_text(pn->dir,
66 			    _PATH_FORWARD, "Mail forwarded to");
67 			(void)show_text(pn->dir, _PATH_PROJECT, "Project");
68 			if (!show_text(pn->dir, _PATH_PLAN, "Plan"))
69 				(void)printf("No Plan.\n");
70 		}
71 	}
72 }
73 
74 static void
75 lprint(pn)
76 	register PERSON *pn;
77 {
78 	extern time_t now;
79 	register struct tm *delta;
80 	register WHERE *w;
81 	register int cpr, len, maxlen;
82 	struct tm *tp;
83 	int oddfield;
84 	char *t, *tzn;
85 
86 	/*
87 	 * long format --
88 	 *	login name
89 	 *	real name
90 	 *	home directory
91 	 *	shell
92 	 *	office, office phone, home phone if available
93 	 */
94 	(void)printf("Login: %-15s\t\t\tName: %s\nDirectory: %-25s",
95 	    pn->name, pn->realname, pn->dir);
96 	(void)printf("\tShell: %-s\n", *pn->shell ? pn->shell : _PATH_BSHELL);
97 
98 	/*
99 	 * try and print office, office phone, and home phone on one line;
100 	 * if that fails, do line filling so it looks nice.
101 	 */
102 #define	OFFICE_TAG		"Office"
103 #define	OFFICE_PHONE_TAG	"Office Phone"
104 	oddfield = 0;
105 	if (pn->office && pn->officephone &&
106 	    strlen(pn->office) + strlen(pn->officephone) +
107 	    sizeof(OFFICE_TAG) + 2 <= 5 * TAB_LEN) {
108 		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s, %s",
109 		    OFFICE_TAG, pn->office, prphone(pn->officephone));
110 		oddfield = demi_print(tbuf, oddfield);
111 	} else {
112 		if (pn->office) {
113 			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
114 			    OFFICE_TAG, pn->office);
115 			oddfield = demi_print(tbuf, oddfield);
116 		}
117 		if (pn->officephone) {
118 			(void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
119 			    OFFICE_PHONE_TAG, prphone(pn->officephone));
120 			oddfield = demi_print(tbuf, oddfield);
121 		}
122 	}
123 	if (pn->homephone) {
124 		(void)snprintf(tbuf, sizeof(tbuf), "%s: %s", "Home Phone",
125 		    prphone(pn->homephone));
126 		oddfield = demi_print(tbuf, oddfield);
127 	}
128 	if (oddfield)
129 		putchar('\n');
130 
131 	/*
132 	 * long format con't: * if logged in
133 	 *	terminal
134 	 *	idle time
135 	 *	if messages allowed
136 	 *	where logged in from
137 	 * if not logged in
138 	 *	when last logged in
139 	 */
140 	/* find out longest device name for this user for formatting */
141 	for (w = pn->whead, maxlen = -1; w != NULL; w = w->next)
142 		if ((len = strlen(w->tty)) > maxlen)
143 			maxlen = len;
144 	/* find rest of entries for user */
145 	for (w = pn->whead; w != NULL; w = w->next) {
146 		switch (w->info) {
147 		case LOGGEDIN:
148 			tp = localtime(&w->loginat);
149 			t = asctime(tp);
150 			tzn = tp->tm_zone;
151 			cpr = printf("On since %.16s (%s) on %s",
152 			    t, tzn, w->tty);
153 			/*
154 			 * idle time is tough; if have one, print a comma,
155 			 * then spaces to pad out the device name, then the
156 			 * idle time.  Follow with a comma if a remote login.
157 			 */
158 			delta = gmtime(&w->idletime);
159 			if (delta->tm_yday || delta->tm_hour || delta->tm_min) {
160 				cpr += printf("%-*s idle ",
161 				    maxlen - strlen(w->tty) + 1, ",");
162 				if (delta->tm_yday > 0) {
163 					cpr += printf("%d day%s ",
164 					   delta->tm_yday,
165 					   delta->tm_yday == 1 ? "" : "s");
166 				}
167 				cpr += printf("%d:%02d",
168 				    delta->tm_hour, delta->tm_min);
169 				if (*w->host) {
170 					putchar(',');
171 					++cpr;
172 				}
173 			}
174 			if (!w->writable)
175 				cpr += printf(" (messages off)");
176 			break;
177 		case LASTLOG:
178 			if (w->loginat == 0) {
179 				(void)printf("Never logged in.");
180 				break;
181 			}
182 			tp = localtime(&w->loginat);
183 			t = asctime(tp);
184 			tzn = tp->tm_zone;
185 			if (now - w->loginat > SECSPERDAY * DAYSPERNYEAR / 2)
186 				cpr =
187 				    printf("Last login %.16s %.4s (%s) on %s",
188 				    t, t + 20, tzn, w->tty);
189 			else
190 				cpr = printf("Last login %.16s (%s) on %s",
191 				    t, tzn, w->tty);
192 			break;
193 		}
194 		if (*w->host) {
195 			if (LINE_LEN < (cpr + 6 + strlen(w->host)))
196 				(void)printf("\n   ");
197 			(void)printf(" from %s", w->host);
198 		}
199 		putchar('\n');
200 	}
201 }
202 
203 static int
204 demi_print(str, oddfield)
205 	char *str;
206 	int oddfield;
207 {
208 	static int lenlast;
209 	int lenthis, maxlen;
210 
211 	lenthis = strlen(str);
212 	if (oddfield) {
213 		/*
214 		 * We left off on an odd number of fields.  If we haven't
215 		 * crossed the midpoint of the screen, and we have room for
216 		 * the next field, print it on the same line; otherwise,
217 		 * print it on a new line.
218 		 *
219 		 * Note: we insist on having the right hand fields start
220 		 * no less than 5 tabs out.
221 		 */
222 		maxlen = 5 * TAB_LEN;
223 		if (maxlen < lenlast)
224 			maxlen = lenlast;
225 		if (((((maxlen / TAB_LEN) + 1) * TAB_LEN) +
226 		    lenthis) <= LINE_LEN) {
227 			while(lenlast < (4 * TAB_LEN)) {
228 				putchar('\t');
229 				lenlast += TAB_LEN;
230 			}
231 			(void)printf("\t%s\n", str);	/* force one tab */
232 		} else {
233 			(void)printf("\n%s", str);	/* go to next line */
234 			oddfield = !oddfield;	/* this'll be undone below */
235 		}
236 	} else
237 		(void)printf("%s", str);
238 	oddfield = !oddfield;			/* toggle odd/even marker */
239 	lenlast = lenthis;
240 	return(oddfield);
241 }
242 
243 static int
244 show_text(directory, file_name, header)
245 	char *directory, *file_name, *header;
246 {
247 	struct stat sb;
248 	register FILE *fp;
249 	register int ch, cnt, lastc;
250 	register char *p;
251 	int fd, nr;
252 
253 	(void)snprintf(tbuf, sizeof(tbuf), "%s/%s", directory, file_name);
254 	if ((fd = open(tbuf, O_RDONLY)) < 0 || fstat(fd, &sb) ||
255 	    sb.st_size == 0)
256 		return(0);
257 
258 	/* If short enough, and no newlines, show it on a single line.*/
259 	if (sb.st_size <= LINE_LEN - strlen(header) - 5) {
260 		nr = read(fd, tbuf, sizeof(tbuf));
261 		if (nr <= 0) {
262 			(void)close(fd);
263 			return(0);
264 		}
265 		for (p = tbuf, cnt = nr; cnt--; ++p)
266 			if (*p == '\n')
267 				break;
268 		if (cnt <= 1) {
269 			(void)printf("%s: ", header);
270 			for (p = tbuf, cnt = nr; cnt--; ++p)
271 				vputc(lastc = *p);
272 			if (lastc != '\n')
273 				(void)putchar('\n');
274 			(void)close(fd);
275 			return(1);
276 		}
277 		else
278 			(void)lseek(fd, 0L, SEEK_SET);
279 	}
280 	if ((fp = fdopen(fd, "r")) == NULL)
281 		return(0);
282 	(void)printf("%s:\n", header);
283 	while ((ch = getc(fp)) != EOF)
284 		vputc(lastc = ch);
285 	if (lastc != '\n')
286 		(void)putchar('\n');
287 	(void)fclose(fp);
288 	return(1);
289 }
290 
291 static void
292 vputc(ch)
293 	register int ch;
294 {
295 	int meta;
296 
297 	if (!isascii(ch)) {
298 		(void)putchar('M');
299 		(void)putchar('-');
300 		ch = toascii(ch);
301 		meta = 1;
302 	} else
303 		meta = 0;
304 	if (isprint(ch) || !meta && (ch == ' ' || ch == '\t' || ch == '\n'))
305 		(void)putchar(ch);
306 	else {
307 		(void)putchar('^');
308 		(void)putchar(ch == '\177' ? '?' : ch | 0100);
309 	}
310 }
311