svn commit: trunk/uClibc/include
psm at uclibc.org
psm at uclibc.org
Thu Nov 3 23:33:54 UTC 2005
Author: psm
Date: 2005-11-03 15:33:53 -0800 (Thu, 03 Nov 2005)
New Revision: 12140
Log:
Sync w/ glibc
Modified:
trunk/uClibc/include/unistd.h
Changeset:
Modified: trunk/uClibc/include/unistd.h
===================================================================
--- trunk/uClibc/include/unistd.h 2005-11-03 23:32:14 UTC (rev 12139)
+++ trunk/uClibc/include/unistd.h 2005-11-03 23:33:53 UTC (rev 12140)
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-1999, 2000, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2002, 2003, 2004 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
@@ -30,34 +30,30 @@
/* 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
+/* POSIX Standard approved as ISO/IEC 9945-1 as of December 2001. */
+#define _POSIX_VERSION 200112L
/* 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
-
/* The utilities on GNU systems also correspond to this version. */
-#define _POSIX2_VERSION 199209L
+#define _POSIX2_VERSION 200112L
/* If defined, the implementation supports the
C Language Bindings Option. */
-#define _POSIX2_C_BIND 1
+#define _POSIX2_C_BIND 200112L
/* If defined, the implementation supports the
C Language Development Utilities Option. */
-#define _POSIX2_C_DEV 1
+#define _POSIX2_C_DEV 200112L
/* If defined, the implementation supports the
Software Development Utilities Option. */
-#define _POSIX2_SW_DEV 1
+#define _POSIX2_SW_DEV 200112L
/* If defined, the implementation supports the
creation of locales with the localedef utility. */
-#define _POSIX2_LOCALEDEF 1
+#define _POSIX2_LOCALEDEF 200112L
/* X/Open version number to which the library conforms. It is selectable. */
#ifdef __USE_UNIX98
@@ -198,7 +194,7 @@
#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
@@ -257,9 +253,16 @@
#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));
+#endif
+
/* Values for the WHENCE argument to lseek. */
#ifndef _STDIO_H /* <stdio.h> has the same definitions. */
# define SEEK_SET 0 /* Seek from beginning of file. */
@@ -285,9 +288,8 @@
#else
# ifdef __REDIRECT
extern __off64_t __REDIRECT (lseek,
- (int __fd, __off64_t __offset, int __whence)
- __THROW,
- lseek64);
+ (int __fd, __off64_t __offset, int __whence),
+ lseek64);
# else
# define lseek lseek64
# endif
@@ -296,31 +298,51 @@
extern __off64_t lseek64 (int __fd, __off64_t __offset, int __whence) __THROW;
#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);
+
/* 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.
-/* 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 read (int __fd, void *__buf, size_t __nbytes);
+/* 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);
+
#ifdef __USE_UNIX98
# ifndef __USE_FILE_OFFSET64
-extern ssize_t pread (int __fd, void *__buf, size_t __nbytes, __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);
+
+/* 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) __THROW;
+ __off_t __offset);
# else
# ifdef __REDIRECT
extern ssize_t __REDIRECT (pread, (int __fd, void *__buf, size_t __nbytes,
- __off64_t __offset) __THROW,
+ __off64_t __offset),
pread64);
extern ssize_t __REDIRECT (pwrite, (int __fd, __const void *__buf,
- size_t __nbytes, __off64_t __offset)
- __THROW,
- pwrite64);
+ size_t __nbytes, __off64_t __offset),
+ pwrite64);
# else
# define pread pread64
# define pwrite pwrite64
@@ -332,11 +354,11 @@
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);
/* 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;
+ __off64_t __offset);
# endif
#endif
@@ -361,9 +383,12 @@
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.
+ This function is a cancellation point and therefore not marked with
+ __THROW. */
+extern unsigned int sleep (unsigned int __seconds);
+
#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
/* Set an alarm to go off (generating a SIGALRM signal) in VALUE
microseconds. If INTERVAL is nonzero, when the alarm goes off, the
@@ -373,19 +398,25 @@
__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;
+ __THROW __nonnull ((1));
#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
/* Change the owner and group of the file that FD is open on. */
@@ -395,12 +426,12 @@
/* 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;
+ __THROW __nonnull ((1));
#endif /* Use BSD || X/Open Unix. */
/* Change the process's working directory to PATH. */
-extern int chdir (__const char *__path) __THROW;
+extern int chdir (__const char *__path) __THROW __nonnull ((1));
#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
/* Change the process's working directory to the one FD is open on. */
@@ -416,11 +447,19 @@
big as necessary. */
extern char *getcwd (char *__buf, size_t __size) __THROW;
+#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 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 __nonnull ((1));
+#endif
/* Duplicate FD, returning a new file descriptor on the same file. */
@@ -439,27 +478,40 @@
/* 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;
+ char *__const __envp[]) __THROW __nonnull ((1));
+#if 0 /* def __USE_GNU */
+/* 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));
/* 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));
/* 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));
/* 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));
/* 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));
#if defined __USE_MISC || defined __USE_XOPEN
@@ -478,7 +530,8 @@
#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;
@@ -504,7 +557,7 @@
extern __pid_t getpgrp (void) __THROW;
#else
# ifdef __REDIRECT
-extern __pid_t __REDIRECT (getpgrp, (__pid_t __pid) __THROW, __getpgid);
+extern __pid_t __REDIRECT (getpgrp, (__pid_t __pid), __getpgid);
# else
# define getpgrp __getpgid
# endif
@@ -543,8 +596,7 @@
/* Another name for `setpgid' (above). */
# ifdef __REDIRECT
-extern int __REDIRECT (setpgrp, (__pid_t __pid, __pid_t __pgrp) __THROW,
- setpgid);
+extern int __REDIRECT (setpgrp, (__pid_t __pid, __pid_t __pgrp), setpgid);
# else
# define setpgrp setpgid
# endif
@@ -579,6 +631,11 @@
of its supplementary groups in LIST and return the number written. */
extern int getgroups (int __size, __gid_t __list[]) __THROW;
+#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
and effective user IDs, and the saved set-user-ID to UID;
@@ -654,33 +711,42 @@
/* 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));
/* Return 1 if FD is a valid descriptor associated
with a terminal, zero if not. */
extern int isatty (int __fd) __THROW;
+#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;
+#endif
/* 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));
-#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));
/* 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;
+ size_t __len) __THROW __nonnull ((1, 2));
#endif /* Use BSD. */
/* Remove the link NAME. */
-extern int unlink (__const char *__name) __THROW;
+extern int unlink (__const char *__name) __THROW __nonnull ((1));
/* Remove the directory PATH. */
-extern int rmdir (__const char *__path) __THROW;
+extern int rmdir (__const char *__path) __THROW __nonnull ((1));
/* Return the foreground process group ID of FD. */
@@ -690,15 +756,25 @@
extern int tcsetpgrp (int __fd, __pid_t __pgrp_id) __THROW;
-/* Return the login name of the user. */
-extern char *getlogin (void) __THROW;
+/* Return the login name of the user.
+
+ This function is a possible cancellation points and therefore not
+ marked with __THROW. */
+extern char *getlogin (void);
#if defined __USE_REENTRANT || defined __USE_UNIX98
/* 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
+#if 0 /* def __USE_BSD */
+/* Set the login name returned by `getlogin'. */
+extern int setlogin (__const char *__name) __THROW __nonnull ((1));
+#endif
#ifdef __USE_POSIX2
@@ -706,7 +782,7 @@
arguments in ARGV (ARGC of them, minus the program name) for
options given in OPTS. */
# define __need_getopt
-# include <bits/getopt.h>
+# include <getopt.h>
#endif
@@ -714,14 +790,15 @@
/* 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));
#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));
/* Set the current machine's Internet number to ID.
This call is restricted to the super-user. */
@@ -731,8 +808,10 @@
/* 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));
+extern int setdomainname (__const char *__name, size_t __len)
+ __THROW __nonnull ((1));
/* Revoke access permissions to all processes currently communicating
@@ -740,12 +819,26 @@
group of the control terminal. */
extern int vhangup (void) __THROW;
+#if 0
+/* Revoke the access of all descriptors currently open on FILE. */
+extern int revoke (__const char *__file) __THROW __nonnull ((1));
+/* Enable statistical profiling, writing samples of the PC into at most
+ SIZE bytes of SAMPLE_BUFFER; every processor clock tick while profiling
+ is enabled, the system examines the user PC and increments
+ 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 __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 __nonnull ((1));
/* Successive calls return the shells listed in `/etc/shells'. */
@@ -754,7 +847,7 @@
extern void setusershell (void) __THROW; /* Rewind and re-read the file. */
-#if defined __ARCH_HAS_MMU__
+#ifdef __ARCH_HAS_MMU__
/* 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. */
@@ -766,24 +859,27 @@
#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));
/* 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;
+/* 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. */
#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;
@@ -794,29 +890,40 @@
extern int getpagesize (void) __THROW __attribute__ ((__const__));
+/* Return the maximum number of file descriptors
+ the current process could possibly have. */
+extern int getdtablesize (void) __THROW;
+
+
/* 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));
# else
# ifdef __REDIRECT
extern int __REDIRECT (truncate,
- (__const char *__file, __off64_t __length) __THROW,
- truncate64);
+ (__const char *__file, __off64_t __length),
+ truncate64) __nonnull ((1));
# 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));
# 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;
# else
# ifdef __REDIRECT
-extern int __REDIRECT (ftruncate, (int __fd, __off64_t __length) __THROW,
- ftruncate64);
+extern int __REDIRECT (ftruncate, (int __fd, __off64_t __length),
+ ftruncate64);
# else
# define ftruncate ftruncate64
# endif
@@ -825,14 +932,9 @@
extern int ftruncate64 (int __fd, __off64_t __length) __THROW;
# endif
+#endif /* Use BSD || X/Open Unix || POSIX 2003. */
-/* Return the maximum number of file descriptors
- the current process could possibly have. */
-extern int getdtablesize (void) __THROW;
-#endif /* Use BSD || X/Open Unix. */
-
-
#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
/* Set the end of accessible data space (aka "the break") to ADDR.
@@ -870,25 +972,28 @@
/* `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_TLOCK 2 /* Test and 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);
# else
# ifdef __REDIRECT
-extern int __REDIRECT (lockf, (int __fd, int __cmd, __off64_t __len) __THROW,
+extern int __REDIRECT (lockf, (int __fd, int __cmd, __off64_t __len),
lockf64);
# 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);
# endif
#endif /* Use misc and F_LOCK not already defined. */
@@ -917,11 +1022,12 @@
be defined here. */
#ifdef __USE_XOPEN
/* 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));
/* Swab pairs bytes in the first N bytes of the area pointed to by
@@ -929,7 +1035,7 @@
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;
+ ssize_t __n) __THROW __nonnull ((1, 2));
#endif
@@ -937,7 +1043,7 @@
It is also found in <stdio.h>. */
#ifdef __USE_XOPEN
/* Return the name of the controlling terminal. */
-extern char *ctermid (char *__s) __THROW;
+extern char *ctermid (char *__s) __THROW __nonnull ((1));
#endif
__END_DECLS
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