-/* Copyright (C) 1991-1999, 2000, 2001 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'. */
-/* POSIX Standard approved as ISO/IEC 9945-1 as of August, 1988 and
- extended by POSIX-1b (aka POSIX-4) and POSIX-1c (aka POSIX threads). */
-#define _POSIX_VERSION 199506L
+#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
+#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. */
-/* POSIX Standard approved as ISO/IEC 9945-2 as of December, 1993. */
-#define _POSIX2_C_VERSION 199209L
+#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 199209L
+#define _POSIX2_VERSION __POSIX2_THIS_VERSION
/* If defined, the implementation supports the
C Language Bindings Option. */
-#define _POSIX2_C_BIND 1
+#define _POSIX2_C_BIND __POSIX2_THIS_VERSION
/* If defined, the implementation supports the
C Language Development Utilities Option. */
-#define _POSIX2_C_DEV 1
+#define _POSIX2_C_DEV __POSIX2_THIS_VERSION
/* If defined, the implementation supports the
Software Development Utilities Option. */
-#define _POSIX2_SW_DEV 1
+#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 1
+#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 __need_NULL
#include <stddef.h>
-#ifdef __USE_XOPEN
+#if defined __USE_XOPEN || defined __USE_XOPEN2K
/* The Single Unix specification says that some more types are
available here. */
# ifndef __gid_t_defined
#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;
+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)
+ __THROW __nonnull ((1));
+
+/* An alias for `euidaccess', used by some other systems. */
+extern int eaccess (const char *__name, int __type)
+ __THROW __nonnull ((1));
+#endif
+
+#ifdef __USE_ATFILE
+/* 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)
+ __THROW __nonnull ((2)) __wur;
+libc_hidden_proto(faccessat)
+#endif /* Use GNU. */
/* Values for the WHENCE argument to lseek. */
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
-extern __off64_t __REDIRECT (lseek,
- (int __fd, __off64_t __offset, int __whence)
- __THROW,
- lseek64);
+# ifdef __REDIRECT_NTH
+extern __off64_t __REDIRECT_NTH (lseek,
+ (int __fd, __off64_t __offset, int __whence),
+ lseek64);
# else
# define lseek lseek64
# endif
#endif
#ifdef __USE_LARGEFILE64
-extern __off64_t lseek64 (int __fd, __off64_t __offset, int __whence) __THROW;
+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. */
-extern int close (int __fd) __THROW;
+/* 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. */
-extern ssize_t read (int __fd, void *__buf, size_t __nbytes) __THROW;
+ 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.
-/* Write N bytes of BUF to FD. Return the number written, or -1. */
-extern ssize_t write (int __fd, __const void *__buf, size_t __n) __THROW;
+ 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;
+#ifdef _LIBC
+extern __typeof(write) __write_nocancel attribute_hidden;
+libc_hidden_proto(write)
+#endif
#ifdef __USE_UNIX98
# ifndef __USE_FILE_OFFSET64
-extern ssize_t pread (int __fd, void *__buf, size_t __nbytes, __off_t __offset)
- __THROW;
-extern ssize_t pwrite (int __fd, __const void *__buf, size_t __n,
- __off_t __offset) __THROW;
+/* Read NBYTES into BUF from FD at the given position OFFSET without
+ changing the file pointer. 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 pread (int __fd, void *__buf, size_t __nbytes,
+ __off_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.
+
+ This function is a cancellation point and therefore not marked with
+ __THROW. */
+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) __THROW,
- pread64);
-extern ssize_t __REDIRECT (pwrite, (int __fd, __const void *__buf,
- size_t __nbytes, __off64_t __offset)
- __THROW,
- pwrite64);
+ __off64_t __offset),
+ pread64) __wur;
+extern ssize_t __REDIRECT (pwrite, (int __fd, const void *__buf,
+ size_t __nbytes, __off64_t __offset),
+ pwrite64) __wur;
# else
# define pread pread64
# define pwrite pwrite64
changing the file pointer. Return the number read, -1 for errors
or 0 for EOF. */
extern ssize_t pread64 (int __fd, void *__buf, size_t __nbytes,
- __off64_t __offset) __THROW;
+ __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,
- __off64_t __offset) __THROW;
+extern ssize_t pwrite64 (int __fd, const void *__buf, size_t __n,
+ __off64_t __offset) __wur;
# endif
#endif
If successful, two file descriptors are stored in PIPEDES;
bytes written on PIPEDES[1] can be read from PIPEDES[0].
Returns 0 if successful, -1 if not. */
-extern int pipe (int __pipedes[2]) __THROW;
+extern int pipe (int __pipedes[2]) __THROW __wur;
+libc_hidden_proto(pipe)
+
+#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;
+libc_hidden_proto(pipe2)
+#endif
/* Schedule an alarm. In SECONDS seconds, the process will get a SIGALRM.
If SECONDS is zero, any currently scheduled alarm will be cancelled.
to 0 and check its value after calling `alarm', and this might tell you.
The signal may come late due to processor scheduling. */
extern unsigned int alarm (unsigned int __seconds) __THROW;
+libc_hidden_proto(alarm)
/* Make the process sleep for SECONDS seconds, or until a signal arrives
and is not ignored. The function returns the number of seconds less
If a signal handler does a `longjmp' or modifies the handling of the
SIGALRM signal while inside `sleep' call, the handling of the SIGALRM
signal afterwards is undefined. There is no return value to indicate
- error, but if `sleep' returns SECONDS, it probably didn't work. */
-extern unsigned int sleep (unsigned int __seconds) __THROW;
+ error, but if `sleep' returns SECONDS, it probably didn't work.
-#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
+ This function is a cancellation point and therefore not marked with
+ __THROW. */
+extern unsigned int sleep (unsigned int __seconds);
+libc_hidden_proto(sleep)
+
+#if (defined __USE_BSD || defined __USE_XOPEN_EXTENDED) \
+ && defined __UCLIBC_SUSV3_LEGACY__
/* Set an alarm to go off (generating a SIGALRM signal) in VALUE
microseconds. If INTERVAL is nonzero, when the alarm goes off, the
timer is reset to go off every INTERVAL microseconds thereafter.
__THROW;
/* Sleep USECONDS microseconds, or until a signal arrives that is not blocked
- or ignored. */
-extern int usleep (__useconds_t __useconds) __THROW;
+ or ignored.
+
+ This function is a cancellation point and therefore not marked with
+ __THROW. */
+extern int usleep (__useconds_t __useconds);
#endif
/* Suspend the process until a signal arrives.
- This always returns -1 and sets `errno' to EINTR. */
-extern int pause (void) __THROW;
+ This always returns -1 and sets `errno' to EINTR.
+
+ This function is a cancellation point and therefore not marked with
+ __THROW. */
+extern int pause (void);
/* Change the owner and group of FILE. */
-extern int chown (__const char *__file, __uid_t __owner, __gid_t __group)
- __THROW;
+extern int chown (const char *__file, __uid_t __owner, __gid_t __group)
+ __THROW __nonnull ((1)) __wur;
+libc_hidden_proto(chown)
#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
/* Change the owner and group of the file that FD is open on. */
-extern int fchown (int __fd, __uid_t __owner, __gid_t __group) __THROW;
+extern int fchown (int __fd, __uid_t __owner, __gid_t __group) __THROW __wur;
/* 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)
- __THROW;
+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,
+ __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;
+extern int chdir (const char *__path) __THROW __nonnull ((1)) __wur;
+libc_hidden_proto(chdir)
#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
/* Change the process's working directory to the one FD is open on. */
-extern int fchdir (int __fd) __THROW;
+extern int fchdir (int __fd) __THROW __wur;
+libc_hidden_proto(fchdir)
#endif
/* Get the pathname of the current working directory,
an array is allocated with `malloc'; the array is SIZE
bytes long, unless SIZE == 0, in which case it is as
big as necessary. */
-extern char *getcwd (char *__buf, size_t __size) __THROW;
+extern char *getcwd (char *__buf, size_t __size) __THROW __wur;
+libc_hidden_proto(getcwd)
+#ifdef __USE_GNU
/* Return a malloc'd string containing the current directory name.
If the environment variable `PWD' is set, and its value is correct,
that value is used. */
extern char *get_current_dir_name (void) __THROW;
+#endif
-#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
+#if 0 /*defined __USE_BSD || defined __USE_XOPEN_EXTENDED*/
/* Put the absolute pathname of the current working directory in BUF.
If successful, return BUF. If not, put an error message in
BUF and return NULL. BUF should be at least PATH_MAX bytes long. */
-extern char *getwd (char *__buf) __THROW;
+extern char *getwd (char *__buf)
+ __THROW __nonnull ((1)) __attribute_deprecated__ __wur;
#endif
/* Duplicate FD, returning a new file descriptor on the same file. */
-extern int dup (int __fd) __THROW;
+extern int dup (int __fd) __THROW __wur;
/* Duplicate FD to FD2, closing FD2 and making it open on the same file. */
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;
/* 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;
+extern int execve (const char *__path, char *const __argv[],
+ char *const __envp[]) __THROW __nonnull ((1));
+libc_hidden_proto(execve)
+
+#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[])
+ __THROW;
+#endif
+
/* Execute PATH with arguments ARGV and environment from `environ'. */
-extern int execv (__const char *__path, char *__const __argv[]) __THROW;
+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, ...) __THROW;
+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, ...) __THROW;
+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[]) __THROW;
+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, ...) __THROW;
+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. */
-extern int nice (int __inc) __THROW;
+extern int nice (int __inc) __THROW __wur;
#endif
/* Terminate program execution with the low-order 8 bits of STATUS. */
extern void _exit (int __status) __attribute__ ((__noreturn__));
+libc_hidden_proto(_exit)
/* Get the `_PC_*' symbols for the NAME argument to `pathconf' and `fpathconf';
#include <bits/confname.h>
/* Get file-specific configuration information about PATH. */
-extern long int pathconf (__const char *__path, int __name) __THROW;
+extern long int pathconf (const char *__path, int __name)
+ __THROW __nonnull ((1));
/* Get file-specific configuration about descriptor FD. */
extern long int fpathconf (int __fd, int __name) __THROW;
/* Get the value of the system variable NAME. */
-extern long int sysconf (int __name) __THROW __attribute__ ((__const__));
+extern long int sysconf (int __name) __THROW;
+libc_hidden_proto(sysconf)
#ifdef __USE_POSIX2
/* Get the value of the string-valued system variable NAME. */
/* Get the process ID of the calling process. */
extern __pid_t getpid (void) __THROW;
+libc_hidden_proto(getpid)
/* Get the process ID of the calling process's parent. */
extern __pid_t getppid (void) __THROW;
#ifndef __FAVOR_BSD
extern __pid_t getpgrp (void) __THROW;
#else
-# ifdef __REDIRECT
-extern __pid_t __REDIRECT (getpgrp, (__pid_t __pid) __THROW, __getpgid);
+# ifdef __REDIRECT_NTH
+extern __pid_t __REDIRECT_NTH (getpgrp, (__pid_t __pid), __getpgid);
# else
# define getpgrp __getpgid
# endif
If PID is zero, the current process's process group ID is set.
If PGID is zero, the process ID of the process is used. */
extern int setpgid (__pid_t __pid, __pid_t __pgid) __THROW;
+libc_hidden_proto(setpgid)
#if defined __USE_SVID || defined __USE_BSD || defined __USE_XOPEN_EXTENDED
/* Both System V and BSD have `setpgrp' functions, but with different
# else
/* Another name for `setpgid' (above). */
-# ifdef __REDIRECT
-extern int __REDIRECT (setpgrp, (__pid_t __pid, __pid_t __pgrp) __THROW,
- setpgid);
+# ifdef __REDIRECT_NTH
+extern int __REDIRECT_NTH (setpgrp, (__pid_t __pid, __pid_t __pgrp), setpgid);
# else
# define setpgrp setpgid
# endif
The process group IDs of the session and the calling process
are set to the process ID of the calling process, which is returned. */
extern __pid_t setsid (void) __THROW;
+libc_hidden_proto(setsid)
#ifdef __USE_XOPEN_EXTENDED
/* Return the session ID of the given process. */
extern __pid_t getsid (__pid_t __pid) __THROW;
+libc_hidden_proto(getsid)
#endif
/* Get the real user ID of the calling process. */
extern __uid_t getuid (void) __THROW;
+libc_hidden_proto(getuid)
/* Get the effective user ID of the calling process. */
extern __uid_t geteuid (void) __THROW;
+libc_hidden_proto(geteuid)
/* Get the real group ID of the calling process. */
extern __gid_t getgid (void) __THROW;
+libc_hidden_proto(getgid)
/* Get the effective group ID of the calling process. */
extern __gid_t getegid (void) __THROW;
+libc_hidden_proto(getegid)
/* If SIZE is zero, return the number of supplementary groups
the calling process is in. Otherwise, fill in the group IDs
of its supplementary groups in LIST and return the number written. */
-extern int getgroups (int __size, __gid_t __list[]) __THROW;
+extern int getgroups (int __size, __gid_t __list[]) __THROW __wur;
+libc_hidden_proto(getgroups)
+
+#if 0 /*def __USE_GNU*/
+/* Return nonzero iff the calling process is in group GID. */
+extern int group_member (__gid_t __gid) __THROW;
+#endif
/* Set the user ID of the calling process to UID.
If the calling process is the super-user, set the real
/* Set the real user ID of the calling process to RUID,
and the effective user ID of the calling process to EUID. */
extern int setreuid (__uid_t __ruid, __uid_t __euid) __THROW;
+libc_hidden_proto(setreuid)
#endif
#if defined __USE_BSD || defined __USE_XOPEN2K
/* Set the effective user ID of the calling process to UID. */
extern int seteuid (__uid_t __uid) __THROW;
+libc_hidden_proto(seteuid)
#endif /* Use BSD. */
/* Set the group ID of the calling process to GID.
/* Set the real group ID of the calling process to RGID,
and the effective group ID of the calling process to EGID. */
extern int setregid (__gid_t __rgid, __gid_t __egid) __THROW;
+libc_hidden_proto(setregid)
#endif
#if defined __USE_BSD || defined __USE_XOPEN2K
#endif /* Use BSD. */
#ifdef __USE_GNU
-/* Fetch the effective user ID, real user ID, and saved-set user ID,
+/* Fetch the real user ID, effective user ID, and saved-set user ID,
of the calling process. */
-extern int getresuid (__uid_t *__euid, __uid_t *__ruid, __uid_t *__suid);
+extern int getresuid (__uid_t *__ruid, __uid_t *__euid, __uid_t *__suid)
+ __THROW;
-/* Fetch the effective group ID, real group ID, and saved-set group ID,
+/* Fetch the real group ID, effective group ID, and saved-set group ID,
of the calling process. */
-extern int getresgid (__gid_t *__egid, __gid_t *__rgid, __gid_t *__sgid);
+extern int getresgid (__gid_t *__rgid, __gid_t *__egid, __gid_t *__sgid)
+ __THROW;
-/* Set the effective user ID, real user ID, and saved-set user ID,
- of the calling process to EUID, RUID, and SUID, respectively. */
-extern int setresuid (__uid_t __euid, __uid_t __ruid, __uid_t __suid);
+#if defined __UCLIBC_LINUX_SPECIFIC__
+/* Set the real user ID, effective user ID, and saved-set user ID,
+ of the calling process to RUID, EUID, and SUID, respectively. */
+extern int setresuid (__uid_t __ruid, __uid_t __euid, __uid_t __suid)
+ __THROW;
+libc_hidden_proto(setresuid)
+#endif
-/* Set the effective group ID, real group ID, and saved-set group ID,
- of the calling process to EGID, RGID, and SGID, respectively. */
-extern int setresgid (__gid_t __egid, __gid_t __rgid, __gid_t __sgid);
+/* Set the real group ID, effective group ID, and saved-set group ID,
+ of the calling process to RGID, EGID, and SGID, respectively. */
+extern int setresgid (__gid_t __rgid, __gid_t __egid, __gid_t __sgid)
+ __THROW;
+libc_hidden_proto(setresgid)
#endif
+#if defined __UCLIBC_HAS_STUBS__ || defined __ARCH_USE_MMU__
/* Clone the calling process, creating an exact copy.
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
/* Clone the calling process, but without copying the whole address space.
replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
and the process ID of the new process to the old process. */
extern __pid_t vfork (void) __THROW;
+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. */
/* Store at most BUFLEN characters of the pathname of the terminal FD is
open on in BUF. Return 0 on success, otherwise an error number. */
-extern int ttyname_r (int __fd, char *__buf, size_t __buflen) __THROW;
+extern int ttyname_r (int __fd, char *__buf, size_t __buflen)
+ __THROW __nonnull ((2)) __wur;
+libc_hidden_proto(ttyname_r)
/* Return 1 if FD is a valid descriptor associated
with a terminal, zero if not. */
extern int isatty (int __fd) __THROW;
+libc_hidden_proto(isatty)
-#if defined __USE_BSD \
- || (defined __USE_XOPEN_EXTENDED && !defined __USE_UNIX98)
+#if 0 /*defined __USE_BSD \
+ || (defined __USE_XOPEN_EXTENDED && !defined __USE_UNIX98)*/
/* Return the index into the active-logins file (utmp) for
the controlling terminal. */
extern int ttyslot (void) __THROW;
/* Make a link to FROM named TO. */
-extern int link (__const char *__from, __const char *__to) __THROW;
+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)
+ __THROW __nonnull ((2, 4)) __wur;
+libc_hidden_proto(linkat)
+#endif
-#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
+#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) __THROW;
+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 int readlink (__const char *__restrict __path, char *__restrict __buf,
- size_t __len) __THROW;
+extern ssize_t readlink (const char *__restrict __path,
+ char *__restrict __buf, size_t __len)
+ __THROW __nonnull ((1, 2)) __wur;
+libc_hidden_proto(readlink)
#endif /* Use BSD. */
+#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;
+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,
+ 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;
+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)
+ __THROW __nonnull ((2));
+libc_hidden_proto(unlinkat)
+#endif
/* Remove the directory PATH. */
-extern int rmdir (__const char *__path) __THROW;
+extern int rmdir (const char *__path) __THROW __nonnull ((1));
+libc_hidden_proto(rmdir)
/* Return the foreground process group ID of FD. */
extern __pid_t tcgetpgrp (int __fd) __THROW;
+libc_hidden_proto(tcgetpgrp)
/* Set the foreground process group ID of FD set PGRP_ID. */
extern int tcsetpgrp (int __fd, __pid_t __pgrp_id) __THROW;
-/* Return the login name of the user. */
-extern char *getlogin (void) __THROW;
-#if defined __USE_REENTRANT || defined __USE_UNIX98
+/* Return the login name of the user.
+
+ This function is a possible cancellation points and therefore not
+ marked with __THROW. */
+extern char *getlogin (void);
+libc_hidden_proto(getlogin)
+#if defined __USE_REENTRANT || defined __USE_POSIX199506
/* Return at most NAME_LEN characters of the login name of the user in NAME.
If it cannot be determined or some other error occurred, return the error
- code. Otherwise return 0. */
-extern int getlogin_r (char *__name, size_t __name_len) __THROW;
+ code. Otherwise return 0.
+
+ This function is a possible cancellation points and therefore not
+ marked with __THROW. */
+extern int getlogin_r (char *__name, size_t __name_len) __nonnull ((1));
#endif
-#ifdef __USE_BSD
+#if 0 /*def __USE_BSD*/
/* Set the login name returned by `getlogin'. */
-extern int setlogin (__const char *__name) __THROW;
+extern int setlogin (const char *__name) __THROW __nonnull ((1));
#endif
arguments in ARGV (ARGC of them, minus the program name) for
options given in OPTS. */
# define __need_getopt
+/* keep this for uClibc in bits/, we need it when GNU_GETOPT is disabled */
# include <bits/getopt.h>
#endif
/* Put the name of the current host in no more than LEN bytes of NAME.
The result is null-terminated if LEN is large enough for the full
name and the terminator. */
-extern int gethostname (char *__name, size_t __len) __THROW;
+extern int gethostname (char *__name, size_t __len) __THROW __nonnull ((1));
+libc_hidden_proto(gethostname)
#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) __THROW;
+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;
+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'.
The NIS domain name is usually the empty string when not using NIS. */
-extern int getdomainname (char *__name, size_t __len) __THROW;
-extern int setdomainname (__const char *__name, size_t __len) __THROW;
+extern int getdomainname (char *__name, size_t __len)
+ __THROW __nonnull ((1)) __wur;
+libc_hidden_proto(getdomainname)
+#endif
+#if defined __UCLIBC_BSD_SPECIFIC__
+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
group of the control terminal. */
extern int vhangup (void) __THROW;
+#endif
+#if 0
/* Revoke the access of all descriptors currently open on FILE. */
-extern int revoke (__const char *__file) __THROW;
+extern int revoke (const char *__file) __THROW __nonnull ((1)) __wur;
/* Enable statistical profiling, writing samples of the PC into at most
SAMPLE_BUFFER[((PC - OFFSET) / 2) * SCALE / 65536]. If SCALE is zero,
disable profiling. Returns zero on success, -1 on error. */
extern int profil (unsigned short int *__sample_buffer, size_t __size,
- size_t __offset, unsigned int __scale) __THROW;
+ size_t __offset, unsigned int __scale)
+ __THROW __nonnull ((1));
+#endif
/* 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
terminal. If NOCHDIR is zero, do `chdir ("/")'. If NOCLOSE is zero,
redirects stdin, stdout, and stderr to /dev/null. */
-extern int daemon (int __nochdir, int __noclose) __THROW;
+extern int daemon (int __nochdir, int __noclose) __THROW __wur;
#endif /* Use BSD || X/Open. */
#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;
+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) __THROW;
+extern char *getpass (const char *__prompt) __nonnull ((1));
#endif /* Use BSD || X/Open. */
-#if defined __USE_BSD || defined __USE_XOPEN
-/* Make all changes done to FD actually appear on disk. */
-extern int fsync (int __fd) __THROW;
-#endif /* Use BSD || X/Open. */
+#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 || Unix98. */
#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
-/* Return the current machine's Internet number. */
-extern long int gethostid (void) __THROW;
+/* Return identifier for the current host. */
+extern long int gethostid (void);
/* Make all changes done to all files actually appear on disk. */
extern void sync (void) __THROW;
/* Return the number of bytes in a page. This is the system's page size,
which is not necessarily the same as the hardware page size. */
extern int getpagesize (void) __THROW __attribute__ ((__const__));
+libc_hidden_proto(getpagesize)
+
+
+/* Return the maximum number of file descriptors
+ the current process could possibly have. */
+extern int getdtablesize (void) __THROW;
+libc_hidden_proto(getdtablesize)
/* Truncate FILE to LENGTH bytes. */
# ifndef __USE_FILE_OFFSET64
-extern int truncate (__const char *__file, __off_t __length) __THROW;
+extern int truncate (const char *__file, __off_t __length)
+ __THROW __nonnull ((1)) __wur;
+libc_hidden_proto(truncate)
# else
-# ifdef __REDIRECT
-extern int __REDIRECT (truncate,
- (__const char *__file, __off64_t __length) __THROW,
- truncate64);
+# ifdef __REDIRECT_NTH
+extern int __REDIRECT_NTH (truncate,
+ (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) __THROW;
+extern int truncate64 (const char *__file, __off64_t __length)
+ __THROW __nonnull ((1)) __wur;
+libc_hidden_proto(truncate64)
# endif
+#endif /* Use BSD || X/Open Unix. */
+
+#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K
+
/* Truncate the file FD is open on to LENGTH bytes. */
# ifndef __USE_FILE_OFFSET64
-extern int ftruncate (int __fd, __off_t __length) __THROW;
+extern int ftruncate (int __fd, __off_t __length) __THROW __wur;
+libc_hidden_proto(ftruncate)
# else
-# ifdef __REDIRECT
-extern int __REDIRECT (ftruncate, (int __fd, __off64_t __length) __THROW,
- ftruncate64);
+# ifdef __REDIRECT_NTH
+extern int __REDIRECT_NTH (ftruncate, (int __fd, __off64_t __length),
+ ftruncate64) __wur;
# else
# define ftruncate ftruncate64
# endif
# endif
# ifdef __USE_LARGEFILE64
-extern int ftruncate64 (int __fd, __off64_t __length) __THROW;
+extern int ftruncate64 (int __fd, __off64_t __length) __THROW __wur;
+libc_hidden_proto(ftruncate64)
# endif
-
-/* Return the maximum number of file descriptors
- the current process could possibly have. */
-extern int getdtablesize (void) __THROW;
-
-#endif /* Use BSD || X/Open Unix. */
+#endif /* Use BSD || X/Open Unix || POSIX 2003. */
#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
/* Set the end of accessible data space (aka "the break") to ADDR.
Returns zero on success and -1 for errors (with errno set). */
-extern int brk (void *__addr) __THROW;
+extern int brk (void *__addr) __THROW __wur;
+libc_hidden_proto(brk)
/* Increase or decrease the end of accessible data space by DELTA bytes.
If successful, returns the address the previous end of data space
(i.e. the beginning of the new space, if DELTA > 0);
returns (void *) -1 for errors (with errno set). */
extern void *sbrk (intptr_t __delta) __THROW;
+libc_hidden_proto(sbrk)
#endif
#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
/* `lockf' is a simpler interface to the locking facilities of `fcntl'.
LEN is always relative to the current file position.
- The CMD argument is one of the following. */
+ The CMD argument is one of the following.
+
+ This function is a cancellation point and therefore not marked with
+ __THROW. */
# define F_ULOCK 0 /* Unlock a previously locked region. */
# define F_LOCK 1 /* Lock a region for exclusive use. */
# define F_TEST 3 /* Test a region for other processes locks. */
# ifndef __USE_FILE_OFFSET64
-extern int lockf (int __fd, int __cmd, __off_t __len) __THROW;
+extern int lockf (int __fd, int __cmd, __off_t __len) __wur;
+libc_hidden_proto(lockf)
# else
# ifdef __REDIRECT
-extern int __REDIRECT (lockf, (int __fd, int __cmd, __off64_t __len) __THROW,
- lockf64);
+extern int __REDIRECT (lockf, (int __fd, int __cmd, __off64_t __len),
+ lockf64) __wur;
# else
# define lockf lockf64
# endif
# endif
# ifdef __USE_LARGEFILE64
-extern int lockf64 (int __fd, int __cmd, __off64_t __len) __THROW;
+extern int lockf64 (int __fd, int __cmd, __off64_t __len) __wur;
# endif
#endif /* Use misc and F_LOCK not already defined. */
__result; }))
#endif
-#if defined __USE_POSIX199309 || defined __USE_UNIX98
+#if (defined __USE_POSIX199309 || defined __USE_UNIX98) \
+ && 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 */
/* XPG4.2 specifies that prototypes for the encryption functions must
be defined here. */
#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) __THROW;
+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
block in place. */
-extern void encrypt (char *__block, int __edflag) __THROW;
+extern void encrypt (char *__block, int __edflag) __THROW __nonnull ((1));
+# endif /* __UCLIBC_HAS_CRYPT__ */
/* Swab pairs bytes in the first N bytes of the area pointed to by
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,
- ssize_t __n) __THROW;
+extern void swab (const void *__restrict __from, void *__restrict __to,
+ ssize_t __n) __THROW __nonnull ((1, 2));
#endif
#endif
-#ifdef __USE_POSIX199309
-/* This function is only available if the system has POSIX threads. */
-
-/* Install handlers to be called when a new process is created with FORK.
- The PREPARE handler is called in the parent process just before performing
- FORK. The PARENT handler is called in the parent process just after FORK.
- The CHILD handler is called in the child process. Each of the three
- handlers can be NULL, meaning that no handler needs to be called at that
- point.
- PTHREAD_ATFORK can be called several times, in which case the PREPARE
- handlers are called in LIFO order (last added with PTHREAD_ATFORK,
- first called before FORK), and the PARENT and CHILD handlers are called
- in FIFO (first added, first called). */
-extern int pthread_atfork (void (*__prepare) (void),
- void (*__parent) (void),
- void (*__child) (void)) __THROW;
+/* Define some macros helping to catch buffer overflows. */
+#if __USE_FORTIFY_LEVEL > 0 && defined __extern_always_inline
+# include <bits/unistd.h>
#endif
__END_DECLS
+
+#ifdef _LIBC
+#ifndef smallint_type /* if arch didn't override it in bits/wordsize.h */
+#define smallint_type int
+#endif
+typedef signed smallint_type smallint;
+typedef unsigned smallint_type smalluint;
+extern size_t __pagesize attribute_hidden;
+#endif
+
+
#endif /* unistd.h */
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