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b799f91ddd
* stdlib/stdlib.h: Include <bits/stdlib.h> if fortification is requested. * Makefile (headers): Add bits/stdlib.h. * include/bits/stdlib.h: New file. * debug/Depend: New file. * debug/ptsname_r_chk.c: New file. * debug/realpath_chk.c: New file. * debug/wctomb_chk.c: New file. * debug/Makefile (routines): Add ptsname_r_chk, realpath_chk, and wctomb_chk. * debug/Versions: Export __ptsname_r_chk, __realpath_chk, and __wctomb_chk. * debug/tst-chk1.c: Add tests for __ptsname_r_chk, __realpath_chk, and __wctomb_chk.
76 lines
2.8 KiB
C
76 lines
2.8 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 (__realpath_alias, (__const char *__restrict __name,
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char *__restrict __resolved),
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realpath) __THROW __wur;
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extern __always_inline __wur char *
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realpath (const char *__name, char *__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 (__ptsname_r_alias, (int __fd, char *__buf,
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size_t __buflen), ptsname_r)
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__THROW __nonnull ((2));
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extern __always_inline int
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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 (__wctomb_alias, (char *__s, wchar_t __wchar), wctomb)
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__THROW __wur;
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extern __always_inline __wur int
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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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