diff options
Diffstat (limited to 'lib/unistd.in.h')
| -rw-r--r-- | lib/unistd.in.h | 140 |
1 files changed, 115 insertions, 25 deletions
diff --git a/lib/unistd.in.h b/lib/unistd.in.h index 50f6e565..b4129663 100644 --- a/lib/unistd.in.h +++ b/lib/unistd.in.h @@ -1,5 +1,5 @@ /* Substitute for and wrapper around <unistd.h>. - Copyright (C) 2003-2022 Free Software Foundation, Inc. + Copyright (C) 2003-2024 Free Software Foundation, Inc. This file is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as @@ -40,6 +40,24 @@ # undef _GL_INCLUDING_UNISTD_H #endif +/* Avoid lseek bugs in FreeBSD, macOS <https://bugs.gnu.org/61386>. + This bug is fixed after FreeBSD 13; see <https://bugs.freebsd.org/256205>. + Use macOS "9999" to stand for a future fixed macOS version. */ +#if defined __FreeBSD__ && __FreeBSD__ < 14 +# undef SEEK_DATA +# undef SEEK_HOLE +#elif defined __APPLE__ && defined __MACH__ && defined SEEK_DATA +# ifdef __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ +# include <AvailabilityMacros.h> +# endif +# if (!defined MAC_OS_X_VERSION_MIN_REQUIRED \ + || MAC_OS_X_VERSION_MIN_REQUIRED < 99990000) +# include <sys/fcntl.h> /* It also defines the two macros. */ +# undef SEEK_DATA +# undef SEEK_HOLE +# endif +#endif + /* Get all possible declarations of gethostname(). */ #if @GNULIB_GETHOSTNAME@ && @UNISTD_H_HAVE_WINSOCK2_H@ \ && !defined _GL_INCLUDING_WINSOCK2_H @@ -51,6 +69,12 @@ #if !defined _@GUARD_PREFIX@_UNISTD_H && !defined _GL_INCLUDING_WINSOCK2_H #define _@GUARD_PREFIX@_UNISTD_H +/* This file uses _GL_INLINE_HEADER_BEGIN, _GL_INLINE, GNULIB_POSIXCHECK, + HAVE_RAW_DECL_*. */ +#if !_GL_CONFIG_H_INCLUDED + #error "Please include config.h first." +#endif + /* NetBSD 5.0 mis-defines NULL. Also get size_t. */ /* But avoid namespace pollution on glibc systems. */ #ifndef __GLIBC__ @@ -152,9 +176,6 @@ # include <getopt-pfx-core.h> #endif -#ifndef _GL_INLINE_HEADER_BEGIN - #error "Please include config.h first." -#endif _GL_INLINE_HEADER_BEGIN #ifndef _GL_UNISTD_INLINE # define _GL_UNISTD_INLINE _GL_INLINE @@ -541,17 +562,22 @@ _GL_CXXALIASWARN (dup2); Return newfd if successful, otherwise -1 and errno set. See the Linux man page at <https://www.kernel.org/doc/man-pages/online/pages/man2/dup3.2.html>. */ -# if @HAVE_DUP3@ +# if @REPLACE_DUP3@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef dup3 # define dup3 rpl_dup3 # endif _GL_FUNCDECL_RPL (dup3, int, (int oldfd, int newfd, int flags)); _GL_CXXALIAS_RPL (dup3, int, (int oldfd, int newfd, int flags)); # else +# if !@HAVE_DUP3@ _GL_FUNCDECL_SYS (dup3, int, (int oldfd, int newfd, int flags)); +# endif _GL_CXXALIAS_SYS (dup3, int, (int oldfd, int newfd, int flags)); # endif +# if __GLIBC__ >= 2 _GL_CXXALIASWARN (dup3); +# endif #elif defined GNULIB_POSIXCHECK # undef dup3 # if HAVE_RAW_DECL_DUP3 @@ -870,7 +896,9 @@ _GL_FUNCDECL_SYS (execvpe, int, _GL_CXXALIAS_SYS (execvpe, int, (const char *program, char * const *argv, char * const *env)); # endif +# if __GLIBC__ >= 2 _GL_CXXALIASWARN (execvpe); +# endif #elif defined GNULIB_POSIXCHECK # undef execvpe # if HAVE_RAW_DECL_EXECVPE @@ -925,7 +953,9 @@ _GL_FUNCDECL_SYS (faccessat, int, _GL_CXXALIAS_SYS (faccessat, int, (int fd, char const *file, int mode, int flag)); # endif +# if __GLIBC__ >= 2 _GL_CXXALIASWARN (faccessat); +# endif #elif defined GNULIB_POSIXCHECK # undef faccessat # if HAVE_RAW_DECL_FACCESSAT @@ -941,23 +971,28 @@ _GL_WARN_ON_USE (faccessat, "faccessat is not portable - " Return 0 if successful, otherwise -1 and errno set. See the POSIX:2008 specification <https://pubs.opengroup.org/onlinepubs/9699919799/functions/fchdir.html>. */ -# if ! @HAVE_FCHDIR@ +# if @REPLACE_FCHDIR@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef fchdir +# define fchdir rpl_fchdir +# endif +_GL_FUNCDECL_RPL (fchdir, int, (int /*fd*/)); +_GL_CXXALIAS_RPL (fchdir, int, (int /*fd*/)); +# else +# if !@HAVE_FCHDIR@ || !@HAVE_DECL_FCHDIR@ _GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/)); - +# endif +_GL_CXXALIAS_SYS (fchdir, int, (int /*fd*/)); +# endif +_GL_CXXALIASWARN (fchdir); +# if @REPLACE_FCHDIR@ || !@HAVE_FCHDIR@ /* Gnulib internal hooks needed to maintain the fchdir metadata. */ _GL_EXTERN_C int _gl_register_fd (int fd, const char *filename) _GL_ARG_NONNULL ((2)); _GL_EXTERN_C void _gl_unregister_fd (int fd); _GL_EXTERN_C int _gl_register_dup (int oldfd, int newfd); _GL_EXTERN_C const char *_gl_directory_name (int fd); - -# else -# if !@HAVE_DECL_FCHDIR@ -_GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/)); -# endif # endif -_GL_CXXALIAS_SYS (fchdir, int, (int /*fd*/)); -_GL_CXXALIASWARN (fchdir); #elif defined GNULIB_POSIXCHECK # undef fchdir # if HAVE_RAW_DECL_FCHDIR @@ -1002,11 +1037,22 @@ _GL_WARN_ON_USE (fchownat, "fchownat is not portable - " Return 0 if successful, otherwise -1 and errno set. See POSIX:2008 specification <https://pubs.opengroup.org/onlinepubs/9699919799/functions/fdatasync.html>. */ -# if !@HAVE_FDATASYNC@ || !@HAVE_DECL_FDATASYNC@ +# if @REPLACE_FDATASYNC@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef fdatasync +# define fdatasync rpl_fdatasync +# endif +_GL_FUNCDECL_RPL (fdatasync, int, (int fd)); +_GL_CXXALIAS_RPL (fdatasync, int, (int fd)); +# else +# if !@HAVE_FDATASYNC@|| !@HAVE_DECL_FDATASYNC@ _GL_FUNCDECL_SYS (fdatasync, int, (int fd)); -# endif +# endif _GL_CXXALIAS_SYS (fdatasync, int, (int fd)); +# endif +# if __GLIBC__ >= 2 _GL_CXXALIASWARN (fdatasync); +# endif #elif defined GNULIB_POSIXCHECK # undef fdatasync # if HAVE_RAW_DECL_FDATASYNC @@ -1053,7 +1099,9 @@ _GL_FUNCDECL_SYS (ftruncate, int, (int fd, off_t length)); # endif _GL_CXXALIAS_SYS (ftruncate, int, (int fd, off_t length)); # endif +# if __GLIBC__ >= 2 _GL_CXXALIASWARN (ftruncate); +# endif #elif defined GNULIB_POSIXCHECK # undef ftruncate # if HAVE_RAW_DECL_FTRUNCATE @@ -1070,10 +1118,10 @@ _GL_WARN_ON_USE (ftruncate, "ftruncate is unportable - " or SIZE was too small. See the POSIX:2008 specification <https://pubs.opengroup.org/onlinepubs/9699919799/functions/getcwd.html>. - Additionally, the gnulib module 'getcwd' guarantees the following GNU - extension: If BUF is NULL, an array is allocated with 'malloc'; the array - is SIZE bytes long, unless SIZE == 0, in which case it is as big as - necessary. */ + Additionally, the gnulib module 'getcwd' or 'getcwd-lgpl' guarantees the + following GNU extension: If BUF is NULL, an array is allocated with + 'malloc'; the array is SIZE bytes long, unless SIZE == 0, in which case + it is as big as necessary. */ # if @REPLACE_GETCWD@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define getcwd rpl_getcwd @@ -1185,11 +1233,22 @@ _GL_WARN_ON_USE (getdtablesize, "getdtablesize is unportable - " #if @GNULIB_GETENTROPY@ /* Fill a buffer with random bytes. */ -# if !@HAVE_GETENTROPY@ +# if @REPLACE_GETENTROPY@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef getentropy +# define getentropy rpl_getentropy +# endif +_GL_FUNCDECL_RPL (getentropy, int, (void *buffer, size_t length)); +_GL_CXXALIAS_RPL (getentropy, int, (void *buffer, size_t length)); +# else +# if !@HAVE_GETENTROPY@ _GL_FUNCDECL_SYS (getentropy, int, (void *buffer, size_t length)); -# endif +# endif _GL_CXXALIAS_SYS (getentropy, int, (void *buffer, size_t length)); +# endif +# if __GLIBC__ >= 2 _GL_CXXALIASWARN (getentropy); +# endif #elif defined GNULIB_POSIXCHECK # undef getentropy # if HAVE_RAW_DECL_GETENTROPY @@ -1323,7 +1382,9 @@ _GL_FUNCDECL_SYS (getlogin_r, int, (char *name, size_t size) int size. */ _GL_CXXALIAS_SYS_CAST (getlogin_r, int, (char *name, size_t size)); # endif +# if __GLIBC__ >= 2 _GL_CXXALIASWARN (getlogin_r); +# endif #elif defined GNULIB_POSIXCHECK # undef getlogin_r # if HAVE_RAW_DECL_GETLOGIN_R @@ -1661,7 +1722,9 @@ _GL_CXXALIAS_SYS (linkat, int, (int fd1, const char *path1, int fd2, const char *path2, int flag)); # endif +# if __GLIBC__ >= 2 _GL_CXXALIASWARN (linkat); +# endif #elif defined GNULIB_POSIXCHECK # undef linkat # if HAVE_RAW_DECL_LINKAT @@ -1742,8 +1805,9 @@ _GL_WARN_ON_USE (pipe, "pipe is unportable - " Return 0 upon success, or -1 with errno set upon failure. See also the Linux man page at <https://www.kernel.org/doc/man-pages/online/pages/man2/pipe2.2.html>. */ -# if @HAVE_PIPE2@ +# if @REPLACE_PIPE2@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef pipe2 # define pipe2 rpl_pipe2 # endif _GL_FUNCDECL_RPL (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1))); @@ -1752,7 +1816,9 @@ _GL_CXXALIAS_RPL (pipe2, int, (int fd[2], int flags)); _GL_FUNCDECL_SYS (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_SYS (pipe2, int, (int fd[2], int flags)); # endif +# if __GLIBC__ >= 2 _GL_CXXALIASWARN (pipe2); +# endif #elif defined GNULIB_POSIXCHECK # undef pipe2 # if HAVE_RAW_DECL_PIPE2 @@ -1787,7 +1853,9 @@ _GL_FUNCDECL_SYS (pread, ssize_t, _GL_CXXALIAS_SYS (pread, ssize_t, (int fd, void *buf, size_t bufsize, off_t offset)); # endif +# if __GLIBC__ >= 2 _GL_CXXALIASWARN (pread); +# endif #elif defined GNULIB_POSIXCHECK # undef pread # if HAVE_RAW_DECL_PREAD @@ -1822,7 +1890,9 @@ _GL_FUNCDECL_SYS (pwrite, ssize_t, _GL_CXXALIAS_SYS (pwrite, ssize_t, (int fd, const void *buf, size_t bufsize, off_t offset)); # endif +# if __GLIBC__ >= 2 _GL_CXXALIASWARN (pwrite); +# endif #elif defined GNULIB_POSIXCHECK # undef pwrite # if HAVE_RAW_DECL_PWRITE @@ -1936,7 +2006,9 @@ _GL_CXXALIAS_SYS (readlinkat, ssize_t, (int fd, char const *restrict file, char *restrict buf, size_t len)); # endif +# if __GLIBC__ >= 2 _GL_CXXALIASWARN (readlinkat); +# endif #elif defined GNULIB_POSIXCHECK # undef readlinkat # if HAVE_RAW_DECL_READLINKAT @@ -1996,15 +2068,27 @@ _GL_CXXALIASWARN (rmdir); Platforms with no ability to set the hostname return -1 and set errno = ENOSYS. */ -# if !@HAVE_SETHOSTNAME@ || !@HAVE_DECL_SETHOSTNAME@ +# if @REPLACE_SETHOSTNAME@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef sethostname +# define sethostname rpl_sethostname +# endif +_GL_FUNCDECL_RPL (sethostname, int, (const char *name, size_t len) + _GL_ARG_NONNULL ((1))); +_GL_CXXALIAS_RPL (sethostname, int, (const char *name, size_t len)); +# else +# if !@HAVE_SETHOSTNAME@ || !@HAVE_DECL_SETHOSTNAME@ _GL_FUNCDECL_SYS (sethostname, int, (const char *name, size_t len) _GL_ARG_NONNULL ((1))); -# endif +# endif /* Need to cast, because on Solaris 11 2011-10, Mac OS X 10.5, IRIX 6.5 and FreeBSD 6.4 the second parameter is int. On Solaris 11 2011-10, the first parameter is not const. */ _GL_CXXALIAS_SYS_CAST (sethostname, int, (const char *name, size_t len)); +# endif +# if __GLIBC__ >= 2 _GL_CXXALIASWARN (sethostname); +# endif #elif defined GNULIB_POSIXCHECK # undef sethostname # if HAVE_RAW_DECL_SETHOSTNAME @@ -2113,7 +2197,9 @@ _GL_FUNCDECL_SYS (symlinkat, int, _GL_CXXALIAS_SYS (symlinkat, int, (char const *contents, int fd, char const *file)); # endif +# if __GLIBC__ >= 2 _GL_CXXALIASWARN (symlinkat); +# endif #elif defined GNULIB_POSIXCHECK # undef symlinkat # if HAVE_RAW_DECL_SYMLINKAT @@ -2143,7 +2229,9 @@ _GL_FUNCDECL_SYS (truncate, int, (const char *filename, off_t length) # endif _GL_CXXALIAS_SYS (truncate, int, (const char *filename, off_t length)); # endif +# if __GLIBC__ >= 2 _GL_CXXALIASWARN (truncate); +# endif #elif defined GNULIB_POSIXCHECK # undef truncate # if HAVE_RAW_DECL_TRUNCATE @@ -2173,7 +2261,9 @@ _GL_FUNCDECL_SYS (ttyname_r, int, _GL_CXXALIAS_SYS (ttyname_r, int, (int fd, char *buf, size_t buflen)); # endif +# if __GLIBC__ >= 2 _GL_CXXALIASWARN (ttyname_r); +# endif #elif defined GNULIB_POSIXCHECK # undef ttyname_r # if HAVE_RAW_DECL_TTYNAME_R |