xref: /titanic_41/usr/src/cmd/mail/pickFrom.c (revision 45916cd2fec6e79bca5dee0421bd39e3c2910d1e)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
23 /*	  All Rights Reserved  	*/
24 
25 
26 #pragma ident	"%Z%%M%	%I%	%E% SMI" 	/* SVr4.0 2.	*/
27 #include "mail.h"
28 /*
29  * pickFrom (line) - scans line, ASSUMED TO BE of the form
30  *	[>]From <fromU> <date> [remote from <fromS>]
31  * and fills fromU and fromS global strings appropriately.
32  */
33 
34 void pickFrom (lineptr)
35 register char *lineptr;
36 {
37 	register char *p;
38 	static char rf[] = "remote from ";
39 	int rfl;
40 
41 	if (*lineptr == '>')
42 		lineptr++;
43 	lineptr += 5;
44 	for (p = fromU; *lineptr; lineptr++) {
45 		if (isspace (*lineptr))
46 			break;
47 		*p++ = *lineptr;
48 	}
49 	*p = '\0';
50 	rfl = strlen (rf);
51 	while (*lineptr && strncmp (lineptr, rf, rfl))
52 		lineptr++;
53 	if (*lineptr == '\0') {
54 		fromS[0] = 0;
55 	} else {
56 		lineptr += rfl;
57 		for (p = fromS; *lineptr; lineptr++) {
58 			if (isspace (*lineptr))
59 				break;
60 			*p++ = *lineptr;
61 		}
62 		*p = '\0';
63 	}
64 }
65