--- /dev/null
+/* Checking macros for stdlib functions.
+ Copyright (C) 2005-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _STDLIB_H
+# error "Never include <bits/stdlib.h> directly; use <stdlib.h> instead."
+#endif
+
+extern char *__realpath_chk (const char *__restrict __name,
+ char *__restrict __resolved,
+ size_t __resolvedlen) __THROW __wur;
+extern char *__REDIRECT_NTH (__realpath_alias,
+ (const char *__restrict __name,
+ char *__restrict __resolved), realpath) __wur;
+extern char *__REDIRECT_NTH (__realpath_chk_warn,
+ (const char *__restrict __name,
+ char *__restrict __resolved,
+ size_t __resolvedlen), __realpath_chk) __wur
+ __warnattr ("second argument of realpath must be either NULL or at "
+ "least PATH_MAX bytes long buffer");
+
+__fortify_function __wur char *
+__NTH (realpath (const char *__restrict __name, char *__restrict __resolved))
+{
+ if (__bos (__resolved) != (size_t) -1)
+ {
+#if defined _LIBC_LIMITS_H_ && defined PATH_MAX
+ if (__bos (__resolved) < PATH_MAX)
+ return __realpath_chk_warn (__name, __resolved, __bos (__resolved));
+#endif
+ return __realpath_chk (__name, __resolved, __bos (__resolved));
+ }
+
+ return __realpath_alias (__name, __resolved);
+}
+
+
+extern int __ptsname_r_chk (int __fd, char *__buf, size_t __buflen,
+ size_t __nreal) __THROW __nonnull ((2));
+extern int __REDIRECT_NTH (__ptsname_r_alias, (int __fd, char *__buf,
+ size_t __buflen), ptsname_r)
+ __nonnull ((2));
+extern int __REDIRECT_NTH (__ptsname_r_chk_warn,
+ (int __fd, char *__buf, size_t __buflen,
+ size_t __nreal), __ptsname_r_chk)
+ __nonnull ((2)) __warnattr ("ptsname_r called with buflen bigger than "
+ "size of buf");
+
+__fortify_function int
+__NTH (ptsname_r (int __fd, char *__buf, size_t __buflen))
+{
+ if (__bos (__buf) != (size_t) -1)
+ {
+ if (!__builtin_constant_p (__buflen))
+ return __ptsname_r_chk (__fd, __buf, __buflen, __bos (__buf));
+ if (__buflen > __bos (__buf))
+ return __ptsname_r_chk_warn (__fd, __buf, __buflen, __bos (__buf));
+ }
+ return __ptsname_r_alias (__fd, __buf, __buflen);
+}
+
+
+extern int __wctomb_chk (char *__s, wchar_t __wchar, size_t __buflen)
+ __THROW __wur;
+extern int __REDIRECT_NTH (__wctomb_alias, (char *__s, wchar_t __wchar),
+ wctomb) __wur;
+
+__fortify_function __wur int
+__NTH (wctomb (char *__s, wchar_t __wchar))
+{
+ /* We would have to include <limits.h> to get a definition of MB_LEN_MAX.
+ But this would only disturb the namespace. So we define our own
+ version here. */
+#define __STDLIB_MB_LEN_MAX 16
+#if defined MB_LEN_MAX && MB_LEN_MAX != __STDLIB_MB_LEN_MAX
+# error "Assumed value of MB_LEN_MAX wrong"
+#endif
+ if (__bos (__s) != (size_t) -1 && __STDLIB_MB_LEN_MAX > __bos (__s))
+ return __wctomb_chk (__s, __wchar, __bos (__s));
+ return __wctomb_alias (__s, __wchar);
+}
+
+
+extern size_t __mbstowcs_chk (wchar_t *__restrict __dst,
+ const char *__restrict __src,
+ size_t __len, size_t __dstlen) __THROW;
+extern size_t __REDIRECT_NTH (__mbstowcs_alias,
+ (wchar_t *__restrict __dst,
+ const char *__restrict __src,
+ size_t __len), mbstowcs);
+extern size_t __REDIRECT_NTH (__mbstowcs_chk_warn,
+ (wchar_t *__restrict __dst,
+ const char *__restrict __src,
+ size_t __len, size_t __dstlen), __mbstowcs_chk)
+ __warnattr ("mbstowcs called with dst buffer smaller than len "
+ "* sizeof (wchar_t)");
+
+__fortify_function size_t
+__NTH (mbstowcs (wchar_t *__restrict __dst, const char *__restrict __src,
+ size_t __len))
+{
+ if (__bos (__dst) != (size_t) -1)
+ {
+ if (!__builtin_constant_p (__len))
+ return __mbstowcs_chk (__dst, __src, __len,
+ __bos (__dst) / sizeof (wchar_t));
+
+ if (__len > __bos (__dst) / sizeof (wchar_t))
+ return __mbstowcs_chk_warn (__dst, __src, __len,
+ __bos (__dst) / sizeof (wchar_t));
+ }
+ return __mbstowcs_alias (__dst, __src, __len);
+}
+
+
+extern size_t __wcstombs_chk (char *__restrict __dst,
+ const wchar_t *__restrict __src,
+ size_t __len, size_t __dstlen) __THROW;
+extern size_t __REDIRECT_NTH (__wcstombs_alias,
+ (char *__restrict __dst,
+ const wchar_t *__restrict __src,
+ size_t __len), wcstombs);
+extern size_t __REDIRECT_NTH (__wcstombs_chk_warn,
+ (char *__restrict __dst,
+ const wchar_t *__restrict __src,
+ size_t __len, size_t __dstlen), __wcstombs_chk)
+ __warnattr ("wcstombs called with dst buffer smaller than len");
+
+__fortify_function size_t
+__NTH (wcstombs (char *__restrict __dst, const wchar_t *__restrict __src,
+ size_t __len))
+{
+ if (__bos (__dst) != (size_t) -1)
+ {
+ if (!__builtin_constant_p (__len))
+ return __wcstombs_chk (__dst, __src, __len, __bos (__dst));
+ if (__len > __bos (__dst))
+ return __wcstombs_chk_warn (__dst, __src, __len, __bos (__dst));
+ }
+ return __wcstombs_alias (__dst, __src, __len);
+}
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