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_strtoi.h revision 1.2.2.2 
      1 /*	$NetBSD: _strtoi.h,v 1.2.2.2 2015/04/22 07:18:57 snj Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1990, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  *
     31  * Original version ID:
     32  * NetBSD: src/lib/libc/locale/_wcstoul.h,v 1.2 2003/08/07 16:43:03 agc Exp
     33  *
     34  * Created by Kamil Rytarowski, based on ID:
     35  * NetBSD: src/common/lib/libc/stdlib/_strtoul.h,v 1.7 2013/05/17 12:55:56 joerg Exp
     36  */
     37 
     38 /*
     39  * function template for strtoi and strtou
     40  *
     41  * parameters:
     42  *	_FUNCNAME    : function name
     43  *      __TYPE       : return and range limits type
     44  *      __WRAPPED    : wrapped function, strtoimax or strtoumax
     45  */
     46 
     47 #define __WRAPPED_L_(x) x ## _l
     48 #define __WRAPPED_L__(x) __WRAPPED_L_(x)
     49 #define __WRAPPED_L __WRAPPED_L__(__WRAPPED)
     50 
     51 #if defined(_KERNEL) || defined(_STANDALONE) || \
     52     defined(HAVE_NBTOOL_CONFIG_H) || defined(BCS_ONLY)
     53 __TYPE
     54 _FUNCNAME(const char * __restrict nptr, char ** __restrict endptr, int base,
     55           __TYPE lo, __TYPE hi, int * rstatus)
     56 #else
     57 #include <locale.h>
     58 #include "setlocale_local.h"
     59 #define INT_FUNCNAME_(pre, name, post)	pre ## name ## post
     60 #define INT_FUNCNAME(pre, name, post)	INT_FUNCNAME_(pre, name, post)
     61 
     62 static __TYPE
     63 INT_FUNCNAME(_int_, _FUNCNAME, _l)(const char * __restrict nptr,
     64     char ** __restrict endptr, int base,
     65     __TYPE lo, __TYPE hi, int * rstatus, locale_t loc)
     66 #endif
     67 {
     68 #if !defined(_KERNEL) && !defined(_STANDALONE)
     69 	int serrno;
     70 #endif
     71 	__TYPE im;
     72 	char *ep;
     73 	int rep;
     74 
     75 	_DIAGASSERT(hi >= lo);
     76 
     77 	_DIAGASSERT(nptr != NULL);
     78 	/* endptr may be NULL */
     79 
     80 	if (endptr == NULL)
     81 		endptr = &ep;
     82 
     83 	if (rstatus == NULL)
     84 		rstatus = &rep;
     85 
     86 #if !defined(_KERNEL) && !defined(_STANDALONE)
     87 	serrno = errno;
     88 	errno = 0;
     89 #endif
     90 
     91 #if defined(_KERNEL) || defined(_STANDALONE) || \
     92     defined(HAVE_NBTOOL_CONFIG_H) || defined(BCS_ONLY)
     93 	im = __WRAPPED(nptr, endptr, base);
     94 #else
     95 	im = __WRAPPED_L(nptr, endptr, base, loc);
     96 #endif
     97 
     98 #if !defined(_KERNEL) && !defined(_STANDALONE)
     99 	*rstatus = errno;
    100 	errno = serrno;
    101 #endif
    102 
    103 	if (*rstatus == 0) {
    104 		/* No digits were found */
    105 		if (nptr == *endptr)
    106 			*rstatus = ECANCELED;
    107 		/* There are further characters after number */
    108 		else if (**endptr != '\0')
    109 			*rstatus = ENOTSUP;
    110 	}
    111 
    112 	if (im < lo) {
    113 		if (*rstatus == 0)
    114 			*rstatus = ERANGE;
    115 		return lo;
    116 	}
    117 	if (im > hi) {
    118 		if (*rstatus == 0)
    119 			*rstatus = ERANGE;
    120 		return hi;
    121 	}
    122 
    123 	return im;
    124 }
    125 
    126 #if !defined(_KERNEL) && !defined(_STANDALONE) && \
    127     !defined(HAVE_NBTOOL_CONFIG_H) && !defined(BCS_ONLY)
    128 __TYPE
    129 _FUNCNAME(const char * __restrict nptr, char ** __restrict endptr, int base,
    130     __TYPE lo, __TYPE hi, int * rstatus)
    131 {
    132 	return INT_FUNCNAME(_int_, _FUNCNAME, _l)(nptr, endptr, base, lo, hi,
    133 	    rstatus, _current_locale());
    134 }
    135 
    136 __TYPE
    137 INT_FUNCNAME(, _FUNCNAME, _l)(const char * __restrict nptr,
    138     char ** __restrict endptr, int base,
    139     __TYPE lo, __TYPE hi, int * rstatus, locale_t loc)
    140 {
    141 	return INT_FUNCNAME(_int_, _FUNCNAME, _l)(nptr, endptr, base, lo, hi,
    142 	    rstatus, loc);
    143 }
    144 #endif
    145