-/* Copyright (C) 1991-2002,2003,2004,2005,2006 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2006, 2007, 2008, 2009 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
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. */
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
/*
* POSIX Standard: 2.10 Symbolic Constants <unistd.h>
/* These may be used to determine what facilities are present at compile time.
Their values can be obtained at run time from `sysconf'. */
+#ifdef __USE_XOPEN2K8
+/* POSIX Standard approved as ISO/IEC 9945-1 as of September 2008. */
+# define _POSIX_VERSION 200809L
+#elif defined __USE_XOPEN2K
/* POSIX Standard approved as ISO/IEC 9945-1 as of December 2001. */
-#define _POSIX_VERSION 200112L
+# define _POSIX_VERSION 200112L
+#elif defined __USE_POSIX199506
+/* POSIX Standard approved as ISO/IEC 9945-1 as of June 1995. */
+# define _POSIX_VERSION 199506L
+#elif defined __USE_POSIX199309
+/* POSIX Standard approved as ISO/IEC 9945-1 as of September 1993. */
+# define _POSIX_VERSION 199309L
+#else
+/* POSIX Standard approved as ISO/IEC 9945-1 as of September 1990. */
+# define _POSIX_VERSION 199009L
+#endif
/* These are not #ifdef __USE_POSIX2 because they are
in the theoretically application-owned namespace. */
+#ifdef __USE_XOPEN2K8
+# define __POSIX2_THIS_VERSION 200809L
+/* The utilities on GNU systems also correspond to this version. */
+#elif defined __USE_XOPEN2K
+/* The utilities on GNU systems also correspond to this version. */
+# define __POSIX2_THIS_VERSION 200112L
+#elif defined __USE_POSIX199506
+/* The utilities on GNU systems also correspond to this version. */
+# define __POSIX2_THIS_VERSION 199506L
+#else
+/* The utilities on GNU systems also correspond to this version. */
+# define __POSIX2_THIS_VERSION 199209L
+#endif
+
/* The utilities on GNU systems also correspond to this version. */
-#define _POSIX2_VERSION 200112L
+#define _POSIX2_VERSION __POSIX2_THIS_VERSION
/* If defined, the implementation supports the
C Language Bindings Option. */
-#define _POSIX2_C_BIND 200112L
+#define _POSIX2_C_BIND __POSIX2_THIS_VERSION
/* If defined, the implementation supports the
C Language Development Utilities Option. */
-#define _POSIX2_C_DEV 200112L
+#define _POSIX2_C_DEV __POSIX2_THIS_VERSION
/* If defined, the implementation supports the
Software Development Utilities Option. */
-#define _POSIX2_SW_DEV 200112L
+#define _POSIX2_SW_DEV __POSIX2_THIS_VERSION
#if 0 /* uClibc does not provide the utility */
/* If defined, the implementation supports the
creation of locales with the localedef utility. */
-#define _POSIX2_LOCALEDEF 200112L
+#define _POSIX2_LOCALEDEF __POSIX2_THIS_VERSION
#endif
/* X/Open version number to which the library conforms. It is selectable. */
-#ifdef __USE_UNIX98
+#ifdef __USE_XOPEN2K8
+# define _XOPEN_VERSION 700
+#elif defined __USE_XOPEN2K
+# define _XOPEN_VERSION 600
+#elif defined __USE_UNIX98
# define _XOPEN_VERSION 500
#else
# define _XOPEN_VERSION 4
*/
#include <bits/posix_opt.h>
+/* keep it after posix_opt.h, it overwrites based on uClibc's config options */
+#include <bits/uClibc_posix_opt.h>
/* Get the environment definitions from Unix98. */
#ifdef __USE_UNIX98
#define F_OK 0 /* Test for existence. */
/* Test for access to NAME using the real UID and real GID. */
-extern int access (__const char *__name, int __type) __THROW __nonnull ((1));
+extern int access (const char *__name, int __type) __THROW __nonnull ((1));
#if 0 /*def __USE_GNU*/
/* Test for access to NAME using the effective UID and GID
(as normal file operations use). */
-extern int euidaccess (__const char *__name, int __type)
+extern int euidaccess (const char *__name, int __type)
__THROW __nonnull ((1));
/* An alias for `euidaccess', used by some other systems. */
-extern int eaccess (__const char *__name, int __type)
+extern int eaccess (const char *__name, int __type)
__THROW __nonnull ((1));
#endif
/* Test for access to FILE relative to the directory FD is open on.
If AT_EACCESS is set in FLAG, then use effective IDs like `eaccess',
otherwise use real IDs like `access'. */
-extern int faccessat (int __fd, __const char *__file, int __type, int __flag)
+extern int faccessat (int __fd, const char *__file, int __type, int __flag)
__THROW __nonnull ((2)) __wur;
+libc_hidden_proto(faccessat)
#endif /* Use GNU. */
Return the new file position. */
#ifndef __USE_FILE_OFFSET64
extern __off_t lseek (int __fd, __off_t __offset, int __whence) __THROW;
+# ifdef _LIBC
+extern __typeof(lseek) __lseek_nocancel attribute_hidden;
libc_hidden_proto(lseek)
+# endif
#else
# ifdef __REDIRECT_NTH
extern __off64_t __REDIRECT_NTH (lseek,
#ifdef __USE_LARGEFILE64
extern __off64_t lseek64 (int __fd, __off64_t __offset, int __whence)
__THROW;
+# ifdef _LIBC
+extern __typeof(lseek64) __lseek64_nocancel attribute_hidden;
libc_hidden_proto(lseek64)
+# endif
#endif
/* Close the file descriptor FD.
This function is a cancellation point and therefore not marked with
__THROW. */
extern int close (int __fd);
+#ifdef _LIBC
+extern __typeof(close) __close_nocancel attribute_hidden;
+extern void __close_nocancel_no_status(int) attribute_hidden;
libc_hidden_proto(close)
+#endif
/* Read NBYTES into BUF from FD. Return the
number read, -1 for errors or 0 for EOF.
This function is a cancellation point and therefore not marked with
__THROW. */
extern ssize_t read (int __fd, void *__buf, size_t __nbytes) __wur;
+#ifdef _LIBC
+extern __typeof(read) __read_nocancel attribute_hidden;
libc_hidden_proto(read)
+#endif
/* Write N bytes of BUF to FD. Return the number written, or -1.
This function is a cancellation point and therefore not marked with
__THROW. */
-extern ssize_t write (int __fd, __const void *__buf, size_t __n) __wur;
+extern ssize_t write (int __fd, const void *__buf, size_t __n) __wur;
+#ifdef _LIBC
+extern __typeof(write) __write_nocancel attribute_hidden;
libc_hidden_proto(write)
+#endif
#ifdef __USE_UNIX98
# ifndef __USE_FILE_OFFSET64
This function is a cancellation point and therefore not marked with
__THROW. */
-extern ssize_t pwrite (int __fd, __const void *__buf, size_t __n,
+extern ssize_t pwrite (int __fd, const void *__buf, size_t __n,
__off_t __offset) __wur;
# else
# ifdef __REDIRECT
extern ssize_t __REDIRECT (pread, (int __fd, void *__buf, size_t __nbytes,
__off64_t __offset),
pread64) __wur;
-extern ssize_t __REDIRECT (pwrite, (int __fd, __const void *__buf,
+extern ssize_t __REDIRECT (pwrite, (int __fd, const void *__buf,
size_t __nbytes, __off64_t __offset),
pwrite64) __wur;
# else
__off64_t __offset) __wur;
/* Write N bytes of BUF to FD at the given position OFFSET without
changing the file pointer. Return the number written, or -1. */
-extern ssize_t pwrite64 (int __fd, __const void *__buf, size_t __n,
+extern ssize_t pwrite64 (int __fd, const void *__buf, size_t __n,
__off64_t __offset) __wur;
# endif
#endif
extern int pipe (int __pipedes[2]) __THROW __wur;
libc_hidden_proto(pipe)
-#ifdef __USE_GNU
+#if defined __UCLIBC_LINUX_SPECIFIC__ && defined __USE_GNU
/* Same as pipe but apply flags passed in FLAGS to the new file
descriptors. */
extern int pipe2 (int __pipedes[2], int __flags) __THROW __wur;
/* Change the owner and group of FILE. */
-extern int chown (__const char *__file, __uid_t __owner, __gid_t __group)
+extern int chown (const char *__file, __uid_t __owner, __gid_t __group)
__THROW __nonnull ((1)) __wur;
libc_hidden_proto(chown)
/* Change owner and group of FILE, if it is a symbolic
link the ownership of the symbolic link is changed. */
-extern int lchown (__const char *__file, __uid_t __owner, __gid_t __group)
+extern int lchown (const char *__file, __uid_t __owner, __gid_t __group)
__THROW __nonnull ((1)) __wur;
#endif /* Use BSD || X/Open Unix. */
#ifdef __USE_ATFILE
/* Change the owner and group of FILE relative to the directory FD is open
on. */
-extern int fchownat (int __fd, __const char *__file, __uid_t __owner,
+extern int fchownat (int __fd, const char *__file, __uid_t __owner,
__gid_t __group, int __flag)
__THROW __nonnull ((2)) __wur;
+libc_hidden_proto(fchownat)
#endif /* Use GNU. */
/* Change the process's working directory to PATH. */
-extern int chdir (__const char *__path) __THROW __nonnull ((1)) __wur;
+extern int chdir (const char *__path) __THROW __nonnull ((1)) __wur;
libc_hidden_proto(chdir)
#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
extern int dup2 (int __fd, int __fd2) __THROW;
libc_hidden_proto(dup2)
+#ifdef __USE_GNU
+/* Duplicate FD to FD2, closing FD2 and making it open on the same
+ file while setting flags according to FLAGS. */
+extern int dup3 (int __fd, int __fd2, int __flags) __THROW;
+libc_hidden_proto(dup3)
+#endif
+
/* NULL-terminated array of "NAME=VALUE" environment variables. */
extern char **__environ;
#ifdef __USE_GNU
/* Replace the current process, executing PATH with arguments ARGV and
environment ENVP. ARGV and ENVP are terminated by NULL pointers. */
-extern int execve (__const char *__path, char *__const __argv[],
- char *__const __envp[]) __THROW __nonnull ((1));
+extern int execve (const char *__path, char *const __argv[],
+ char *const __envp[]) __THROW __nonnull ((1));
libc_hidden_proto(execve)
-#if 0 /*def __USE_GNU*/
+#if 0 /*def __USE_XOPEN2K8*/
/* Execute the file FD refers to, overlaying the running program image.
ARGV and ENVP are passed to the new program, as for `execve'. */
-extern int fexecve (int __fd, char *__const __argv[], char *__const __envp[])
+extern int fexecve (int __fd, char *const __argv[], char *const __envp[])
__THROW;
#endif
/* Execute PATH with arguments ARGV and environment from `environ'. */
-extern int execv (__const char *__path, char *__const __argv[])
+extern int execv (const char *__path, char *const __argv[])
__THROW __nonnull ((1));
libc_hidden_proto(execv)
/* Execute PATH with all arguments after PATH until a NULL pointer,
and the argument after that for environment. */
-extern int execle (__const char *__path, __const char *__arg, ...)
+extern int execle (const char *__path, const char *__arg, ...)
__THROW __nonnull ((1));
libc_hidden_proto(execle)
/* Execute PATH with all arguments after PATH until
a NULL pointer and environment from `environ'. */
-extern int execl (__const char *__path, __const char *__arg, ...)
+extern int execl (const char *__path, const char *__arg, ...)
__THROW __nonnull ((1));
libc_hidden_proto(execl)
/* Execute FILE, searching in the `PATH' environment variable if it contains
no slashes, with arguments ARGV and environment from `environ'. */
-extern int execvp (__const char *__file, char *__const __argv[])
+extern int execvp (const char *__file, char *const __argv[])
__THROW __nonnull ((1));
libc_hidden_proto(execvp)
/* Execute FILE, searching in the `PATH' environment variable if
it contains no slashes, with all arguments after FILE until a
NULL pointer and environment from `environ'. */
-extern int execlp (__const char *__file, __const char *__arg, ...)
+extern int execlp (const char *__file, const char *__arg, ...)
__THROW __nonnull ((1));
libc_hidden_proto(execlp)
+#ifdef __USE_GNU
+/* Execute FILE, searching in the `PATH' environment variable if it contains
+ no slashes, with arguments ARGV and environment from a pointer */
+extern int execvpe (__const char *__file, char *__const __argv[], char *__const __envp[])
+ __THROW __nonnull ((1));
+libc_hidden_proto(execvpe)
+#endif
+
#if defined __USE_MISC || defined __USE_XOPEN
/* Add INC to priority of the current process. */
#include <bits/confname.h>
/* Get file-specific configuration information about PATH. */
-extern long int pathconf (__const char *__path, int __name)
+extern long int pathconf (const char *__path, int __name)
__THROW __nonnull ((1));
/* Get file-specific configuration about descriptor FD. */
Return -1 for errors, 0 to the new process,
and the process ID of the new process to the old process. */
extern __pid_t fork (void) __THROW;
+# ifdef _LIBC
+# ifdef __UCLIBC_HAS_THREADS__
+extern __typeof(fork) __libc_fork;
+# endif
libc_hidden_proto(fork)
+# endif
#endif
#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
libc_hidden_proto(vfork)
#endif /* Use BSD. */
+#if 0 /* psm: seems unused , exit-thread.S is not compiled */
/* Special exit function which only terminates the current thread. */
extern void __exit_thread (int val) __attribute__ ((__noreturn__));
+#endif
/* Return the pathname of the terminal FD is open on, or NULL on errors.
The returned storage is good only until the next call to this function. */
extern int isatty (int __fd) __THROW;
libc_hidden_proto(isatty)
-
#if 0 /*defined __USE_BSD \
|| (defined __USE_XOPEN_EXTENDED && !defined __USE_UNIX98)*/
/* Return the index into the active-logins file (utmp) for
/* Make a link to FROM named TO. */
-extern int link (__const char *__from, __const char *__to)
+extern int link (const char *__from, const char *__to)
__THROW __nonnull ((1, 2)) __wur;
#ifdef __USE_ATFILE
/* Like link but relative paths in TO and FROM are interpreted relative
to FROMFD and TOFD respectively. */
-extern int linkat (int __fromfd, __const char *__from, int __tofd,
- __const char *__to, int __flags)
+extern int linkat (int __fromfd, const char *__from, int __tofd,
+ const char *__to, int __flags)
__THROW __nonnull ((2, 4)) __wur;
+libc_hidden_proto(linkat)
#endif
#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K
/* Make a symbolic link to FROM named TO. */
-extern int symlink (__const char *__from, __const char *__to)
+extern int symlink (const char *__from, const char *__to)
__THROW __nonnull ((1, 2)) __wur;
/* Read the contents of the symbolic link PATH into no more than
LEN bytes of BUF. The contents are not null-terminated.
Returns the number of characters read, or -1 for errors. */
-extern ssize_t readlink (__const char *__restrict __path,
+extern ssize_t readlink (const char *__restrict __path,
char *__restrict __buf, size_t __len)
__THROW __nonnull ((1, 2)) __wur;
libc_hidden_proto(readlink)
#ifdef __USE_ATFILE
/* Like symlink but a relative path in TO is interpreted relative to TOFD. */
-extern int symlinkat (__const char *__from, int __tofd,
- __const char *__to) __THROW __nonnull ((1, 3)) __wur;
+extern int symlinkat (const char *__from, int __tofd,
+ const char *__to) __THROW __nonnull ((1, 3)) __wur;
+libc_hidden_proto(symlinkat)
/* Like readlink but a relative PATH is interpreted relative to FD. */
-extern ssize_t readlinkat (int __fd, __const char *__restrict __path,
+extern ssize_t readlinkat (int __fd, const char *__restrict __path,
char *__restrict __buf, size_t __len)
__THROW __nonnull ((2, 3)) __wur;
+libc_hidden_proto(readlinkat)
#endif
/* Remove the link NAME. */
-extern int unlink (__const char *__name) __THROW __nonnull ((1));
+extern int unlink (const char *__name) __THROW __nonnull ((1));
libc_hidden_proto(unlink)
#ifdef __USE_ATFILE
/* Remove the link NAME relative to FD. */
-extern int unlinkat (int __fd, __const char *__name, int __flag)
+extern int unlinkat (int __fd, const char *__name, int __flag)
__THROW __nonnull ((2));
+libc_hidden_proto(unlinkat)
#endif
/* Remove the directory PATH. */
-extern int rmdir (__const char *__path) __THROW __nonnull ((1));
+extern int rmdir (const char *__path) __THROW __nonnull ((1));
libc_hidden_proto(rmdir)
#if 0 /*def __USE_BSD*/
/* Set the login name returned by `getlogin'. */
-extern int setlogin (__const char *__name) __THROW __nonnull ((1));
+extern int setlogin (const char *__name) __THROW __nonnull ((1));
#endif
#if defined __USE_BSD || (defined __USE_XOPEN && !defined __USE_UNIX98)
/* Set the name of the current host to NAME, which is LEN bytes long.
This call is restricted to the super-user. */
-extern int sethostname (__const char *__name, size_t __len)
+extern int sethostname (const char *__name, size_t __len)
__THROW __nonnull ((1)) __wur;
/* Set the current machine's Internet number to ID.
This call is restricted to the super-user. */
extern int sethostid (long int __id) __THROW __wur;
+
#if defined __UCLIBC_BSD_SPECIFIC__ || defined _LIBC
/* Get and set the NIS (aka YP) domain name, if any.
Called just like `gethostname' and `sethostname'.
libc_hidden_proto(getdomainname)
#endif
#if defined __UCLIBC_BSD_SPECIFIC__
-extern int setdomainname (__const char *__name, size_t __len)
+extern int setdomainname (const char *__name, size_t __len)
__THROW __nonnull ((1)) __wur;
#endif
+
#if defined __UCLIBC_LINUX_SPECIFIC__
/* Revoke access permissions to all processes currently communicating
with the control terminal, and then send a SIGHUP signal to the process
#if 0
/* Revoke the access of all descriptors currently open on FILE. */
-extern int revoke (__const char *__file) __THROW __nonnull ((1)) __wur;
+extern int revoke (const char *__file) __THROW __nonnull ((1)) __wur;
/* Enable statistical profiling, writing samples of the PC into at most
/* Turn accounting on if NAME is an existing file. The system will then write
a record for each process as it terminates, to this file. If NAME is NULL,
turn accounting off. This call is restricted to the super-user. */
-extern int acct (__const char *__name) __THROW;
+extern int acct (const char *__name) __THROW;
/* Successive calls return the shells listed in `/etc/shells'. */
extern char *getusershell (void) __THROW;
extern void endusershell (void) __THROW; /* Discard cached info. */
+libc_hidden_proto(endusershell)
extern void setusershell (void) __THROW; /* Rewind and re-read the file. */
+libc_hidden_proto(setusershell)
/* Put the program in the background, and dissociate from the controlling
#if defined __USE_BSD || (defined __USE_XOPEN && !defined __USE_XOPEN2K)
/* Make PATH be the root directory (the starting point for absolute paths).
This call is restricted to the super-user. */
-extern int chroot (__const char *__path) __THROW __nonnull ((1)) __wur;
+extern int chroot (const char *__path) __THROW __nonnull ((1)) __wur;
/* Prompt with PROMPT and read a string from the terminal without echoing.
Uses /dev/tty if possible; otherwise stderr and stdin. */
-extern char *getpass (__const char *__prompt) __nonnull ((1));
+extern char *getpass (const char *__prompt) __nonnull ((1));
#endif /* Use BSD || X/Open. */
-#if defined __USE_BSD || defined __USE_XOPEN
+#if defined __USE_BSD || defined __USE_XOPEN || defined __USE_XOPEN2K
/* Make all changes done to FD actually appear on disk.
This function is a cancellation point and therefore not marked with
__THROW. */
extern int fsync (int __fd);
-#endif /* Use BSD || X/Open. */
+#endif /* Use BSD || X/Open || Unix98. */
#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
/* Truncate FILE to LENGTH bytes. */
# ifndef __USE_FILE_OFFSET64
-extern int truncate (__const char *__file, __off_t __length)
+extern int truncate (const char *__file, __off_t __length)
__THROW __nonnull ((1)) __wur;
libc_hidden_proto(truncate)
# else
# ifdef __REDIRECT_NTH
extern int __REDIRECT_NTH (truncate,
- (__const char *__file, __off64_t __length),
+ (const char *__file, __off64_t __length),
truncate64) __nonnull ((1)) __wur;
# else
# define truncate truncate64
# endif
# endif
# ifdef __USE_LARGEFILE64
-extern int truncate64 (__const char *__file, __off64_t __length)
+extern int truncate64 (const char *__file, __off64_t __length)
__THROW __nonnull ((1)) __wur;
+libc_hidden_proto(truncate64)
# endif
#endif /* Use BSD || X/Open Unix. */
#endif /* Use misc. */
+/* Are we in a secure process environment or are we dealing with setuid
+ * stuff? This value is returned by issetugid().
+ */
+extern int _pe_secure;
+libc_hidden_proto(_pe_secure)
+
+#ifdef __USE_BSD
+/* issetugid() returns 1 if the process environment or memory address space
+ is considered tainted, and returns 0 otherwise. This happens, for example,
+ when a process's privileges are elevated by the setuid or setgid flags on
+ an executable belonging to root.
+*/
+extern int issetugid(void);
+#endif
#if (defined __USE_MISC || defined __USE_XOPEN_EXTENDED) && !defined F_LOCK
/* NOTE: These declarations also appear in <fcntl.h>; be sure to keep both
# endif
# ifdef __USE_LARGEFILE64
extern int lockf64 (int __fd, int __cmd, __off64_t __len) __wur;
-libc_hidden_proto(lockf64)
# endif
#endif /* Use misc and F_LOCK not already defined. */
&& defined __UCLIBC_HAS_REALTIME__
/* Synchronize at least the data part of a file with the underlying
media. */
-extern int fdatasync (int __fildes) __THROW;
+extern int fdatasync (int __fildes);
#endif /* Use POSIX199309 */
#ifdef __USE_XOPEN
# if defined __UCLIBC_HAS_CRYPT__
/* Encrypt at most 8 characters from KEY using salt to perturb DES. */
-extern char *crypt (__const char *__key, __const char *__salt)
+extern char *crypt (const char *__key, const char *__salt)
__THROW __nonnull ((1, 2));
/* Encrypt data in BLOCK in place if EDFLAG is zero; otherwise decrypt
FROM and copy the result to TO. The value of TO must not be in the
range [FROM - N + 1, FROM - 1]. If N is odd the first byte in FROM
is without partner. */
-extern void swab (__const void *__restrict __from, void *__restrict __to,
+extern void swab (const void *__restrict __from, void *__restrict __to,
ssize_t __n) __THROW __nonnull ((1, 2));
#endif
/* Define some macros helping to catch buffer overflows. */
-#if __USE_FORTIFY_LEVEL > 0 && !defined __cplusplus
+#if __USE_FORTIFY_LEVEL > 0 && defined __extern_always_inline
# include <bits/unistd.h>
#endif
#endif
typedef signed smallint_type smallint;
typedef unsigned smallint_type smalluint;
+extern size_t __pagesize attribute_hidden;
#endif
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