usr/src/common/util/strtolctype.h

   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 2016 Gary Mills
  24  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  25  * Use is subject to license terms.
  26  */
  27
  28 /*      Copyright (c) 1988 AT&T */
  29 /*        All Rights Reserved   */
  30
  31 #ifndef _COMMON_UTIL_STRTOLCTYPE_H
  32 #define _COMMON_UTIL_STRTOLCTYPE_H
  33
  34 #ifdef  __cplusplus
  35 extern "C" {
  36 #endif
  37
  38 /*
  39  * This is a private header file containing a collection of macros that
  40  * the strtou?ll? functions in common/util use to test characters.  Which
  41  * macros are defined depends on which of _KERNEL or _BOOT are defined.
  42  * New code should use the kernel version of ctype.h: <sys/ctype.h>.
  43  *
  44  * NOTE: These macros are used within several DTrace probe context functions.
  45  * They must not be altered to make function calls or perform actions not
  46  * safe in probe context.
  47  */
  48
  49 /*
  50  * Cases that define these macros:
  51  *   _KERNEL && !_BOOT: Used by kernel functions
  52  *   !_KERNEL && _BOOT: Used by dboot_startkern.c for x86 boot
  53  * Cases that omit these macros:
  54  *   _KERNEL && _BOOT: Used by common/util/strtol.c for SPARC boot library
  55  *   !_KERNEL && !_BOOT: Used by strtou?ll? functions in libc
  56  */
  57 #if     defined(_KERNEL) ^ defined(_BOOT)
  58
  59 #define isalnum(ch)     (isalpha(ch) || isdigit(ch))
  60 #define isalpha(ch)     (isupper(ch) || islower(ch))
  61 #define isdigit(ch)     ((ch) >= '0' && (ch) <= '9')
  62 #define islower(ch)     ((ch) >= 'a' && (ch) <= 'z')
  63 #define isspace(ch)     (((ch) == ' ') || ((ch) == '\r') || ((ch) == '\n') || \
  64                         ((ch) == '\t') || ((ch) == '\f'))
  65 #define isupper(ch)     ((ch) >= 'A' && (ch) <= 'Z')
  66 #define isxdigit(ch)    (isdigit(ch) || ((ch) >= 'a' && (ch) <= 'f') || \
  67                         ((ch) >= 'A' && (ch) <= 'F'))
  68
  69 #endif  /* _KERNEL ^ _BOOT */
  70
  71 /*
  72  * The following macros are defined unconditionally.
  73  */
  74
  75 #define DIGIT(x)        \
  76         (isdigit(x) ? (x) - '0' : islower(x) ? (x) + 10 - 'a' : (x) + 10 - 'A')
  77
  78 #define MBASE   ('z' - 'a' + 1 + 10)
  79
  80 /*
  81  * The following macro is a version of isalnum() that limits alphabetic
  82  * characters to the ranges a-z and A-Z; locale dependent characters will not
  83  * return 1.  The members of a-z and A-Z are assumed to be in ascending order
  84  * and contiguous.
  85  */
  86 #define lisalnum(x)     \
  87         (isdigit(x) || ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z'))
  88
  89 #ifdef  __cplusplus
  90 }
  91 #endif
  92
  93 #endif  /* _COMMON_UTIL_STRTOLCTYPE_H */