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      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 (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 
     22 /*
     23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 /*	Copyright (c) 1988 AT&T	*/
     28 /*	  All Rights Reserved  	*/
     29 
     30 #ifndef	_COMMON_UTIL_CTYPE_H
     31 #define	_COMMON_UTIL_CTYPE_H
     32 
     33 #ifdef	__cplusplus
     34 extern "C" {
     35 #endif
     36 
     37 /*
     38  * This header file contains a collection of macros that the strtou?ll?
     39  * functions in common/util use to test characters.  What we need is a kernel
     40  * version of ctype.h.
     41  */
     42 
     43 #if	defined(_KERNEL) && !defined(_BOOT)
     44 
     45 #define	isalnum(ch)	(isalpha(ch) || isdigit(ch))
     46 #define	isalpha(ch)	(isupper(ch) || islower(ch))
     47 #define	isdigit(ch)	((ch) >= '0' && (ch) <= '9')
     48 #define	islower(ch)	((ch) >= 'a' && (ch) <= 'z')
     49 #define	isspace(ch)	(((ch) == ' ') || ((ch) == '\r') || ((ch) == '\n') || \
     50 			((ch) == '\t') || ((ch) == '\f'))
     51 #define	isupper(ch)	((ch) >= 'A' && (ch) <= 'Z')
     52 #define	isxdigit(ch)	(isdigit(ch) || ((ch) >= 'a' && (ch) <= 'f') || \
     53 			((ch) >= 'A' && (ch) <= 'F'))
     54 
     55 #endif	/* _KERNEL && !_BOOT */
     56 
     57 #define	DIGIT(x)	\
     58 	(isdigit(x) ? (x) - '0' : islower(x) ? (x) + 10 - 'a' : (x) + 10 - 'A')
     59 
     60 #define	MBASE	('z' - 'a' + 1 + 10)
     61 
     62 /*
     63  * The following macro is a version of isalnum() that limits alphabetic
     64  * characters to the ranges a-z and A-Z; locale dependent characters will not
     65  * return 1.  The members of a-z and A-Z are assumed to be in ascending order
     66  * and contiguous.
     67  */
     68 #define	lisalnum(x)	\
     69 	(isdigit(x) || ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z'))
     70 
     71 #ifdef	__cplusplus
     72 }
     73 #endif
     74 
     75 #endif	/* _COMMON_UTIL_CTYPE_H */
     76