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authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /posix/bits/unistd.h
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
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2.5-18.1
Diffstat (limited to 'posix/bits/unistd.h')
-rw-r--r--posix/bits/unistd.h250
1 files changed, 250 insertions, 0 deletions
diff --git a/posix/bits/unistd.h b/posix/bits/unistd.h
new file mode 100644
index 0000000000..b08aef2f6c
--- /dev/null
+++ b/posix/bits/unistd.h
@@ -0,0 +1,250 @@
+/* Checking macros for unistd functions.
+ Copyright (C) 2005, 2006 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _UNISTD_H
+# error "Never include <bits/unistd.h> directly; use <unistd.h> instead."
+#endif
+
+extern ssize_t __read_chk (int __fd, void *__buf, size_t __nbytes,
+ size_t __buflen) __wur;
+extern ssize_t __REDIRECT (__read_alias, (int __fd, void *__buf,
+ size_t __nbytes), read) __wur;
+
+extern __always_inline __wur ssize_t
+read (int __fd, void *__buf, size_t __nbytes)
+{
+ if (__bos0 (__buf) != (size_t) -1
+ && (!__builtin_constant_p (__nbytes) || __nbytes > __bos0 (__buf)))
+ return __read_chk (__fd, __buf, __nbytes, __bos0 (__buf));
+ return __read_alias (__fd, __buf, __nbytes);
+}
+
+#ifdef __USE_UNIX98
+extern ssize_t __pread_chk (int __fd, void *__buf, size_t __nbytes,
+ __off_t __offset, size_t __bufsize) __wur;
+extern ssize_t __pread64_chk (int __fd, void *__buf, size_t __nbytes,
+ __off64_t __offset, size_t __bufsize) __wur;
+extern ssize_t __REDIRECT (__pread_alias,
+ (int __fd, void *__buf, size_t __nbytes,
+ __off_t __offset), pread) __wur;
+extern ssize_t __REDIRECT (__pread64_alias,
+ (int __fd, void *__buf, size_t __nbytes,
+ __off64_t __offset), pread64) __wur;
+
+# ifndef __USE_FILE_OFFSET64
+extern __always_inline __wur ssize_t
+pread (int __fd, void *__buf, size_t __nbytes, __off_t __offset)
+{
+ if (__bos0 (__buf) != (size_t) -1
+ && (!__builtin_constant_p (__nbytes) || __nbytes > __bos0 (__buf)))
+ return __pread_chk (__fd, __buf, __nbytes, __offset, __bos0 (__buf));
+ return __pread_alias (__fd, __buf, __nbytes, __offset);
+}
+# else
+extern __always_inline __wur ssize_t
+pread (int __fd, void *__buf, size_t __nbytes, __off64_t __offset)
+{
+ if (__bos0 (__buf) != (size_t) -1
+ && (!__builtin_constant_p (__nbytes) || __nbytes > __bos0 (__buf)))
+ return __pread64_chk (__fd, __buf, __nbytes, __offset, __bos0 (__buf));
+ return __pread64_alias (__fd, __buf, __nbytes, __offset);
+}
+# endif
+
+# ifdef __USE_LARGEFILE64
+extern __always_inline __wur ssize_t
+pread64 (int __fd, void *__buf, size_t __nbytes, __off64_t __offset)
+{
+ if (__bos0 (__buf) != (size_t) -1
+ && (!__builtin_constant_p (__nbytes) || __nbytes > __bos0 (__buf)))
+ return __pread64_chk (__fd, __buf, __nbytes, __offset, __bos0 (__buf));
+ return __pread64_alias (__fd, __buf, __nbytes, __offset);
+}
+# endif
+#endif
+
+#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K
+extern ssize_t __readlink_chk (__const char *__restrict __path,
+ char *__restrict __buf, size_t __len,
+ size_t __buflen)
+ __THROW __nonnull ((1, 2)) __wur;
+extern ssize_t __REDIRECT_NTH (__readlink_alias,
+ (__const char *__restrict __path,
+ char *__restrict __buf, size_t __len), readlink)
+ __nonnull ((1, 2)) __wur;
+
+extern __always_inline __nonnull ((1, 2)) __wur ssize_t
+__NTH (readlink (__const char *__restrict __path, char *__restrict __buf,
+ size_t __len))
+{
+ if (__bos (__buf) != (size_t) -1
+ && (!__builtin_constant_p (__len) || __len > __bos (__buf)))
+ return __readlink_chk (__path, __buf, __len, __bos (__buf));
+ return __readlink_alias (__path, __buf, __len);
+}
+#endif
+
+#ifdef __USE_ATFILE
+extern ssize_t __readlinkat_chk (int __fd, __const char *__restrict __path,
+ char *__restrict __buf, size_t __len,
+ size_t __buflen)
+ __THROW __nonnull ((2, 3)) __wur;
+extern ssize_t __REDIRECT_NTH (__readlinkat_alias,
+ (int __fd, __const char *__restrict __path,
+ char *__restrict __buf, size_t __len),
+ readlinkat)
+ __nonnull ((2, 3)) __wur;
+
+extern __always_inline __nonnull ((2, 3)) __wur ssize_t
+__NTH (readlinkat (int __fd, __const char *__restrict __path,
+ char *__restrict __buf, size_t __len))
+{
+ if (__bos (__buf) != (size_t) -1
+ && (!__builtin_constant_p (__len) || __len > __bos (__buf)))
+ return __readlinkat_chk (__fd, __path, __buf, __len, __bos (__buf));
+ return __readlinkat_alias (__fd, __path, __buf, __len);
+}
+#endif
+
+extern char *__getcwd_chk (char *__buf, size_t __size, size_t __buflen)
+ __THROW __wur;
+extern char *__REDIRECT_NTH (__getcwd_alias,
+ (char *__buf, size_t __size), getcwd) __wur;
+
+extern __always_inline __wur char *
+__NTH (getcwd (char *__buf, size_t __size))
+{
+ if (__bos (__buf) != (size_t) -1
+ && (!__builtin_constant_p (__size) || __size > __bos (__buf)))
+ return __getcwd_chk (__buf, __size, __bos (__buf));
+ return __getcwd_alias (__buf, __size);
+}
+
+#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
+extern char *__getwd_chk (char *__buf, size_t buflen)
+ __THROW __nonnull ((1)) __wur;
+extern char *__REDIRECT_NTH (__getwd_alias, (char *__buf), getwd)
+ __nonnull ((1)) __wur;
+
+extern __always_inline __nonnull ((1)) __attribute_deprecated__ __wur char *
+__NTH (getwd (char *__buf))
+{
+ if (__bos (__buf) != (size_t) -1)
+ return __getwd_chk (__buf, __bos (__buf));
+ return __getwd_alias (__buf);
+}
+#endif
+
+extern size_t __confstr_chk (int __name, char *__buf, size_t __len,
+ size_t __buflen) __THROW;
+extern size_t __REDIRECT_NTH (__confstr_alias, (int __name, char *__buf,
+ size_t __len), confstr);
+
+extern __always_inline size_t
+__NTH (confstr (int __name, char *__buf, size_t __len))
+{
+ if (__bos (__buf) != (size_t) -1
+ && (!__builtin_constant_p (__len) || __bos (__buf) < __len))
+ return __confstr_chk (__name, __buf, __len, __bos (__buf));
+ return __confstr_alias (__name, __buf, __len);
+}
+
+
+extern int __getgroups_chk (int __size, __gid_t __list[], size_t listlen)
+ __THROW __wur;
+extern int __REDIRECT_NTH (__getgroups_alias, (int __size, __gid_t __list[]),
+ getgroups) __wur;
+
+extern __always_inline int
+__NTH (getgroups (int __size, __gid_t __list[]))
+{
+ if (__bos (__list) != (size_t) -1
+ && (!__builtin_constant_p (__size)
+ || __size * sizeof (__gid_t) > __bos (__list)))
+ return __getgroups_chk (__size, __list, __bos (__list));
+ return __getgroups_alias (__size, __list);
+}
+
+
+extern int __ttyname_r_chk (int __fd, char *__buf, size_t __buflen,
+ size_t __nreal) __THROW __nonnull ((2));
+extern int __REDIRECT_NTH (__ttyname_r_alias, (int __fd, char *__buf,
+ size_t __buflen), ttyname_r)
+ __nonnull ((2));
+
+extern __always_inline int
+__NTH (ttyname_r (int __fd, char *__buf, size_t __buflen))
+{
+ if (__bos (__buf) != (size_t) -1
+ && (!__builtin_constant_p (__buflen) || __buflen > __bos (__buf)))
+ return __ttyname_r_chk (__fd, __buf, __buflen, __bos (__buf));
+ return __ttyname_r_alias (__fd, __buf, __buflen);
+}
+
+
+#if defined __USE_REENTRANT || defined __USE_POSIX199506
+extern int __getlogin_r_chk (char *__buf, size_t __buflen, size_t __nreal)
+ __nonnull ((1));
+extern int __REDIRECT (__getlogin_r_alias, (char *__buf, size_t __buflen),
+ getlogin_r) __nonnull ((1));
+
+extern __always_inline int
+getlogin_r (char *__buf, size_t __buflen)
+{
+ if (__bos (__buf) != (size_t) -1
+ && (!__builtin_constant_p (__buflen) || __buflen > __bos (__buf)))
+ return __getlogin_r_chk (__buf, __buflen, __bos (__buf));
+ return __getlogin_r_alias (__buf, __buflen);
+}
+#endif
+
+
+#if defined __USE_BSD || defined __USE_UNIX98
+extern int __gethostname_chk (char *__buf, size_t __buflen, size_t __nreal)
+ __THROW __nonnull ((1));
+extern int __REDIRECT_NTH (__gethostname_alias, (char *__buf, size_t __buflen),
+ gethostname) __nonnull ((1));
+
+extern __always_inline int
+__NTH (gethostname (char *__buf, size_t __buflen))
+{
+ if (__bos (__buf) != (size_t) -1
+ && (!__builtin_constant_p (__buflen) || __buflen > __bos (__buf)))
+ return __gethostname_chk (__buf, __buflen, __bos (__buf));
+ return __gethostname_alias (__buf, __buflen);
+}
+#endif
+
+
+#if defined __USE_BSD || (defined __USE_XOPEN && !defined __USE_UNIX98)
+extern int __getdomainname_chk (char *__buf, size_t __buflen, size_t __nreal)
+ __THROW __nonnull ((1)) __wur;
+extern int __REDIRECT_NTH (__getdomainname_alias, (char *__buf,
+ size_t __buflen),
+ getdomainname) __nonnull ((1)) __wur;
+
+extern __always_inline int
+__NTH (getdomainname (char *__buf, size_t __buflen))
+{
+ if (__bos (__buf) != (size_t) -1
+ && (!__builtin_constant_p (__buflen) || __buflen > __bos (__buf)))
+ return __getdomainname_chk (__buf, __buflen, __bos (__buf));
+ return __getdomainname_alias (__buf, __buflen);
+}
+#endif