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9441de4c38
This release is used in conjunction with the linux-sgx-driver Intial release: https://github.com/01org/linux-sgx-driver commit-id: 0e865ce5e6b297a787bcdc12d98bada8174be6d7 Intel-id: 33399 Signed-off-by: Angie Chinchilla <angie.v.chinchilla@intel.com>
55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
/* $OpenBSD: btowc.c,v 1.2 2012/12/05 23:20:00 deraadt Exp $ */
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/*-
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* Copyright (c) 2002, 2003 Tim J. Robbins.
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* 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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#include <sys/limits.h>
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#include <stdio.h>
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#include <string.h>
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#include <wchar.h>
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wint_t btowc(int c)
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{
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mbstate_t mbs;
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char cc;
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wchar_t wc;
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/* align with actual outputs of glibc btowc */
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if (c < 0 || c > SCHAR_MAX || c == EOF)
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return (WEOF);
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/*
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* We expect mbrtowc() to return 0 or 1, hence the check for n > 1
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* which detects error return values as well as "impossible" byte
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* counts.
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*/
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memset(&mbs, 0, sizeof(mbs));
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cc = (char)c;
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if (mbrtowc(&wc, &cc, 1, &mbs) > 1)
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return (WEOF);
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return (wc);
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}
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