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 31 #pragma ident "%Z%%M% %I% %E% SMI" 32 33 #include "mail.h" 34 /* 35 * Get comment field, if any, from line. 36 * 1 ==> found comment. 37 * 0 ==> no comment found. 38 * -1 ==> no closing (terminating) paren found for comment. 39 */ 40 41 int 42 getcomment(char *s, char *q) 43 /* Copy comment, if found, to q */ 44 { 45 char *p, *sav_q; 46 int depth = 0; 47 48 if ((p = strchr(s, '(')) == (char *)NULL) { 49 /* no comment found */ 50 return (0); 51 } 52 sav_q = q; 53 while (*p) { 54 *q++ = *p; 55 if (*p == ')') { 56 /* account for nested parens within comment */ 57 depth--; 58 if (depth == 0) { 59 break; 60 } 61 } else if (*p == '(') { 62 depth++; 63 } 64 p++; 65 } 66 *q = '\0'; 67 if (*p != ')') { 68 /* closing paren not found */ 69 *sav_q = '\0'; 70 return (-1); 71 } 72 /* found comment */ 73 return (1); 74 } 75