73 lines
2.4 KiB
C
73 lines
2.4 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2010 Thomas Martitz
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef STRING_EXTRA_H
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#define STRING_EXTRA_H
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#include <string.h>
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#include "strlcpy.h"
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#include "strlcat.h"
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#include "strcasecmp.h"
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#include "strcasestr.h"
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#include "strtok_r.h"
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#include "memset16.h"
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#if defined(WIN32) || defined(APPLICATION) \
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|| defined(__PCTOOL__)
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#ifndef mempcpy
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#define mempcpy __builtin_mempcpy
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#endif
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#endif
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/* copies a buffer of len bytes and null terminates it */
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static inline char * strmemcpy(char *dst, const char *src, size_t len)
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{
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/* NOTE: for now, assumes valid parameters! */
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*(char *)mempcpy(dst, src, len) = '\0';
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return dst;
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}
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/* duplicate and null-terminate a memory block on the stack with alloca() */
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#define strmemdupa(s, l) \
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({ const char *___s = (s); \
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size_t ___l = (l); \
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char *___buf = alloca(___l + 1); \
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strmemcpy(___buf, ___s, ___l); })
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/* strdupa and strndupa may already be provided by a system's string.h */
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#ifndef strdupa
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/* duplicate an entire string on the stack with alloca() */
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#define strdupa(s) \
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({ const char *__s = (s); \
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strmemdupa((__s), strlen(__s)); })
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#endif /* strdupa */
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#ifndef strndupa
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/* duplicate a string on the stack with alloca(), truncating it if it is too
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long */
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#define strndupa(s, n) \
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({ const char *__s = (s); \
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size_t __n = (n); \
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size_t __len = strlen(_s); \
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strmemdupa(__s, MIN(__n, __len)); })
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#endif /* strndupa */
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#endif /* STRING_EXTRA_H */
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