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 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 #include "mail.h" 31 /* 32 * Get comment field, if any, from line. 33 * 1 ==> found comment. 34 * 0 ==> no comment found. 35 * -1 ==> no closing (terminating) paren found for comment. 36 */ 37 38 int 39 getcomment(char *s, char *q) 40 /* Copy comment, if found, to q */ 41 { 42 char *p, *sav_q; 43 int depth = 0; 44 45 if ((p = strchr(s, '(')) == (char *)NULL) { 46 /* no comment found */ 47 return (0); 48 } 49 sav_q = q; 50 while (*p) { 51 *q++ = *p; 52 if (*p == ')') { 53 /* account for nested parens within comment */ 54 depth--; 55 if (depth == 0) { 56 break; 57 } 58 } else if (*p == '(') { 59 depth++; 60 } 61 p++; 62 } 63 *q = '\0'; 64 if (*p != ')') { 65 /* closing paren not found */ 66 *sav_q = '\0'; 67 return (-1); 68 } 69 /* found comment */ 70 return (1); 71 } 72