116 lines
4.1 KiB
C
116 lines
4.1 KiB
C
/* Checking macros for stdlib functions.
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Copyright (C) 2005 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _STDLIB_H
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# error "Never include <bits/stdlib.h> directly; use <stdlib.h> instead."
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#endif
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extern char *__realpath_chk (__const char *__restrict __name,
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char *__restrict __resolved,
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size_t __resolvedlen) __THROW __wur;
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extern char *__REDIRECT_NTH (__realpath_alias,
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(__const char *__restrict __name,
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char *__restrict __resolved), realpath) __wur;
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extern __always_inline __wur char *
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__NTH (realpath (__const char *__restrict __name, char *__restrict __resolved))
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{
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if (__bos (__resolved) != (size_t) -1)
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return __realpath_chk (__name, __resolved, __bos (__resolved));
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return __realpath_alias (__name, __resolved);
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}
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extern int __ptsname_r_chk (int __fd, char *__buf, size_t __buflen,
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size_t __nreal) __THROW __nonnull ((2));
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extern int __REDIRECT_NTH (__ptsname_r_alias, (int __fd, char *__buf,
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size_t __buflen), ptsname_r)
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__nonnull ((2));
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extern __always_inline int
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__NTH (ptsname_r (int __fd, char *__buf, size_t __buflen))
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{
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if (__bos (__buf) != (size_t) -1
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&& (!__builtin_constant_p (__buflen) || __buflen > __bos (__buf)))
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return __ptsname_r_chk (__fd, __buf, __buflen, __bos (__buf));
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return __ptsname_r_alias (__fd, __buf, __buflen);
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}
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extern int __wctomb_chk (char *__s, wchar_t __wchar, size_t __buflen)
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__THROW __wur;
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extern int __REDIRECT_NTH (__wctomb_alias, (char *__s, wchar_t __wchar),
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wctomb) __wur;
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extern __always_inline __wur int
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__NTH (wctomb (char *__s, wchar_t __wchar))
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{
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/* We would have to include <limits.h> to get a definition of MB_LEN_MAX.
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But this would only disturb the namespace. So we define our own
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version here. */
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#define __STDLIB_MB_LEN_MAX 16
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#if defined MB_LEN_MAX && MB_LEN_MAX != __STDLIB_MB_LEN_MAX
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# error "Assumed value of MB_LEN_MAX wrong"
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#endif
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if (__bos (__s) != (size_t) -1 && __STDLIB_MB_LEN_MAX > __bos (__s))
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return __wctomb_chk (__s, __wchar, __bos (__s));
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return __wctomb_alias (__s, __wchar);
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}
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extern size_t __mbstowcs_chk (wchar_t *__restrict __dst,
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__const char *__restrict __src,
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size_t __len, size_t __dstlen) __THROW;
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extern size_t __REDIRECT_NTH (__mbstowcs_alias,
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(wchar_t *__restrict __dst,
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__const char *__restrict __src,
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size_t __len), mbstowcs);
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extern __always_inline size_t
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__NTH (mbstowcs (wchar_t *__restrict __dst, __const char *__restrict __src,
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size_t __len))
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{
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if (__bos (__dst) != (size_t) -1
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&& (!__builtin_constant_p (__len)
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|| __len > __bos (__dst) / sizeof (wchar_t)))
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return __mbstowcs_chk (__dst, __src, __len,
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__bos (__dst) / sizeof (wchar_t));
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return __mbstowcs_alias (__dst, __src, __len);
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}
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extern size_t __wcstombs_chk (char *__restrict __dst,
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__const wchar_t *__restrict __src,
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size_t __len, size_t __dstlen) __THROW;
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extern size_t __REDIRECT_NTH (__wcstombs_alias,
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(char *__restrict __dst,
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__const wchar_t *__restrict __src,
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size_t __len), wcstombs);
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extern __always_inline size_t
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__NTH (wcstombs (char *__restrict __dst, __const wchar_t *__restrict __src,
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size_t __len))
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{
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if (__bos (__dst) != (size_t) -1
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&& (!__builtin_constant_p (__len) || __len > __bos (__dst)))
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return __wcstombs_chk (__dst, __src, __len, __bos (__dst));
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return __wcstombs_alias (__dst, __src, __len);
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}
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