ad30f8e79b
setting. It can be built by setting the WITH_ICONV knob. While this knob is unset, the library part, the binaries, the header file and the metadata files will not be built or installed so it makes no impact on the system if left turned off. This work is based on the iconv implementation in NetBSD but a great number of improvements and feature additions have been included: - Some utilities have been added. There is a conversion table generator, which can compare conversion tables to reference data generated by GNU libiconv. This helps ensuring conversion compatibility. - UTF-16 surrogate support and some endianness issues have been fixed. - The rather chaotic Makefiles to build metadata have been refactored and cleaned up, now it is easy to read and it is also easier to add support for new encodings. - A bunch of new encodings and encoding aliases have been added. - Support for 1->2, 1->3 and 1->4 mappings, which is needed for transliterating with flying accents as GNU does, like "u. - Lots of warnings have been fixed, the major part of the code is now WARNS=6 clean. - New section 1 and section 5 manual pages have been added. - Some GNU-specific calls have been implemented: iconvlist(), iconvctl(), iconv_canonicalize(), iconv_open_into() - Support for GNU's //IGNORE suffix has been added. - The "-" argument for stdin is now recognized in iconv(1) as per POSIX. - The Big5 conversion module has been fixed. - The iconv.h header files is supposed to be compatible with the GNU version, i.e. sources should build with base iconv.h and GNU libiconv. It also includes a macro magic to deal with the char ** and const char ** incompatibility. - GNU compatibility: "" or "char" means the current local encoding in use - Various cleanups and style(9) fixes. Approved by: delphij (mentor) Obtained from: The NetBSD Project Sponsored by: Google Summer of Code 2009
127 lines
3.5 KiB
C
127 lines
3.5 KiB
C
/* $FreeBSD$ */
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/* $NetBSD: _strtoul.h,v 1.1 2008/08/20 12:42:26 joerg Exp $ */
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/*-
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Original version ID:
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* NetBSD: src/lib/libc/locale/_wcstoul.h,v 1.2 2003/08/07 16:43:03 agc Exp
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*/
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/*
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* function template for strtoul, strtoull and strtoumax.
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*
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* parameters:
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* _FUNCNAME : function name
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* __UINT : return type
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* __UINT_MAX : upper limit of the return type
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*/
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__UINT
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_FUNCNAME(const char *nptr, char **endptr, int base)
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{
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const char *s;
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__UINT acc, cutoff;
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unsigned char c;
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int any, cutlim, i, neg;
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/* check base value */
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if (base && (base < 2 || base > 36)) {
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#if !defined(_KERNEL) && !defined(_STANDALONE)
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errno = EINVAL;
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return (0);
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#else
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panic("%s: invalid base %d", __func__, base);
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#endif
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}
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/*
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* Skip white space and pick up leading +/- sign if any.
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* If base is 0, allow 0x for hex and 0 for octal, else
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* assume decimal; if base is already 16, allow 0x.
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*/
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s = nptr;
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do {
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c = *s++;
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} while (isspace(c));
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if (c == '-') {
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neg = 1;
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c = *s++;
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} else {
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neg = 0;
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if (c == '+')
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c = *s++;
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}
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if ((base == 0 || base == 16) &&
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c == '0' && (*s == 'x' || *s == 'X')) {
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c = s[1];
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s += 2;
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base = 16;
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}
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if (base == 0)
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base = (c == '0' ? 8 : 10);
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/*
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* See strtol for comments as to the logic used.
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*/
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cutoff = __UINT_MAX / (__UINT)base;
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cutlim = (int)(__UINT_MAX % (__UINT)base);
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for (acc = 0, any = 0;; c = *s++) {
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if (isdigit(c))
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i = c - '0';
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else if (isalpha(c))
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i = c - (isupper(c) ? 'A' - 10 : 'a' - 10);
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else
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break;
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if (i >= base)
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break;
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if (any < 0)
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continue;
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if (acc > cutoff || (acc == cutoff && i > cutlim)) {
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acc = __UINT_MAX;
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#if !defined(_KERNEL) && !defined(_STANDALONE)
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any = -1;
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errno = ERANGE;
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#else
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any = 0;
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break;
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#endif
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} else {
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any = 1;
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acc *= (__UINT)base;
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acc += i;
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}
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}
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if (neg && any > 0)
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acc = -acc;
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if (endptr != NULL)
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/* LINTED interface specification */
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*endptr = __DECONST(void *, any ? s - 1 : nptr);
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return (acc);
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}
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