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* Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved.
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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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* 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. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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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#define isalnum _isalnum
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#define iscntrl _iscntrl
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#define islower _islower
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#define isspace _isspace
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#define isalpha _isalpha
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#define isdigit _isdigit
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#define isprint _isprint
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#define isupper _isupper
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#define isblank _isblank
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#define isgraph _isgraph
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#define ispunct _ispunct
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#define isxdigit _isxdigit
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void *mempcpy(void *dest, const void *src, size_t n)
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return memcpy(dest, src, n) + n;
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char *stpcpy(char *dest, const char *src)
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size_t len = strlen(src);
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return mempcpy(dest, src, len);
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#ifndef HAVE_STRCHRNUL
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char *strchrnul(const char *s, int c)
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char *p = strchr(s, c);
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p = (char *)s + strlen(s);
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#ifndef HAVE_STRSIGNAL
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char *strsignal(int sig)
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if ((unsigned)sig < NSIG && sys_siglist[sig])
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return (char *)sys_siglist[sig];
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fmtstr(buf, sizeof(buf), "Signal %d", sig);
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void *bsearch(const void *key, const void *base, size_t nmemb,
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size_t size, int (*cmp)(const void *, const void *))
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size_t mididx = nmemb / 2;
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const void *midobj = base + mididx * size;
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int diff = cmp(key, midobj);
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return (void *)midobj;
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base = midobj + size;
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long sysconf(int name)
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sh_error("no sysconf for: %d", name);
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int isxdigit(int c) {