X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Ffcntl.in.h;h=1e45a65a2130d3fa59da68c3216567d321221546;hb=43593319b31e6b0175b8eec4433bac744959822d;hp=959be44ea6f1502240762b2fd917473e05e6bf34;hpb=4475e25b6a19e31e5783781f2132cdbd05bcf7c4;p=gnulib.git diff --git a/lib/fcntl.in.h b/lib/fcntl.in.h index 959be44ea..1e45a65a2 100644 --- a/lib/fcntl.in.h +++ b/lib/fcntl.in.h @@ -1,6 +1,6 @@ /* Like , but with non-working flags defined to 0. - Copyright (C) 2006-2009 Free Software Foundation, Inc. + Copyright (C) 2006-2013 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -20,72 +20,186 @@ #if __GNUC__ >= 3 @PRAGMA_SYSTEM_HEADER@ #endif +@PRAGMA_COLUMNS@ #if defined __need_system_fcntl_h /* Special invocation convention. */ +/* Needed before . + May also define off_t to a 64-bit type on native Windows. */ #include -#include -#include +/* On some systems other than glibc, is a prerequisite of + . On glibc systems, we would like to avoid namespace pollution. + But on glibc systems, includes inside an + extern "C" { ... } block, which leads to errors in C++ mode with the + overridden from gnulib. These errors are known to be gone + with g++ version >= 4.3. */ +#if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))) +# include +#endif #@INCLUDE_NEXT@ @NEXT_FCNTL_H@ #else /* Normal invocation convention. */ -#ifndef _GL_FCNTL_H +#ifndef _@GUARD_PREFIX@_FCNTL_H +/* Needed before . + May also define off_t to a 64-bit type on native Windows. */ #include -#include -#include +/* On some systems other than glibc, is a prerequisite of + . On glibc systems, we would like to avoid namespace pollution. + But on glibc systems, includes inside an + extern "C" { ... } block, which leads to errors in C++ mode with the + overridden from gnulib. These errors are known to be gone + with g++ version >= 4.3. */ +#if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))) +# include +#endif /* The include_next requires a split double-inclusion guard. */ #@INCLUDE_NEXT@ @NEXT_FCNTL_H@ -#ifndef _GL_FCNTL_H -#define _GL_FCNTL_H +#ifndef _@GUARD_PREFIX@_FCNTL_H +#define _@GUARD_PREFIX@_FCNTL_H + +#ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems. */ +# include +#endif + +/* Native Windows platforms declare open(), creat() in . */ +#if (@GNULIB_OPEN@ || defined GNULIB_POSIXCHECK) \ + && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) +# include +#endif + + +/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ + +/* The definition of _GL_ARG_NONNULL is copied here. */ + +/* The definition of _GL_WARN_ON_USE is copied here. */ /* Declare overridden functions. */ -#ifdef __cplusplus -extern "C" { +#if @GNULIB_FCNTL@ +# if @REPLACE_FCNTL@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef fcntl +# define fcntl rpl_fcntl +# endif +_GL_FUNCDECL_RPL (fcntl, int, (int fd, int action, ...)); +_GL_CXXALIAS_RPL (fcntl, int, (int fd, int action, ...)); +# else +# if !@HAVE_FCNTL@ +_GL_FUNCDECL_SYS (fcntl, int, (int fd, int action, ...)); +# endif +_GL_CXXALIAS_SYS (fcntl, int, (int fd, int action, ...)); +# endif +_GL_CXXALIASWARN (fcntl); +#elif defined GNULIB_POSIXCHECK +# undef fcntl +# if HAVE_RAW_DECL_FCNTL +_GL_WARN_ON_USE (fcntl, "fcntl is not always POSIX compliant - " + "use gnulib module fcntl for portability"); +# endif #endif #if @GNULIB_OPEN@ # if @REPLACE_OPEN@ -# undef open -# define open rpl_open -extern int open (const char *filename, int flags, ...); +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef open +# define open rpl_open +# endif +_GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...) + _GL_ARG_NONNULL ((1))); +_GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...)); +# else +_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...)); +# endif +/* On HP-UX 11, in C++ mode, open() is defined as an inline function with a + default argument. _GL_CXXALIASWARN does not work in this case. */ +# if !defined __hpux +_GL_CXXALIASWARN (open); # endif +#elif defined GNULIB_POSIXCHECK +# undef open +/* Assume open is always declared. */ +_GL_WARN_ON_USE (open, "open is not always POSIX compliant - " + "use gnulib module open for portability"); #endif -#ifdef FCHDIR_REPLACEMENT -/* gnulib internal function. */ -extern int _gl_register_fd (int fd, const char *filename); +#if @GNULIB_OPENAT@ +# if @REPLACE_OPENAT@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef openat +# define openat rpl_openat +# endif +_GL_FUNCDECL_RPL (openat, int, + (int fd, char const *file, int flags, /* mode_t mode */ ...) + _GL_ARG_NONNULL ((2))); +_GL_CXXALIAS_RPL (openat, int, + (int fd, char const *file, int flags, /* mode_t mode */ ...)); +# else +# if !@HAVE_OPENAT@ +_GL_FUNCDECL_SYS (openat, int, + (int fd, char const *file, int flags, /* mode_t mode */ ...) + _GL_ARG_NONNULL ((2))); +# endif +_GL_CXXALIAS_SYS (openat, int, + (int fd, char const *file, int flags, /* mode_t mode */ ...)); +# endif +_GL_CXXALIASWARN (openat); +#elif defined GNULIB_POSIXCHECK +# undef openat +# if HAVE_RAW_DECL_OPENAT +_GL_WARN_ON_USE (openat, "openat is not portable - " + "use gnulib module openat for portability"); +# endif #endif -#ifdef __cplusplus -} -#endif -/* Fix up the FD_* macros. */ +/* Fix up the FD_* macros, only known to be missing on mingw. */ #ifndef FD_CLOEXEC # define FD_CLOEXEC 1 #endif +/* Fix up the supported F_* macros. Intentionally leave other F_* + macros undefined. Only known to be missing on mingw. */ + +#ifndef F_DUPFD_CLOEXEC +# define F_DUPFD_CLOEXEC 0x40000000 +/* Witness variable: 1 if gnulib defined F_DUPFD_CLOEXEC, 0 otherwise. */ +# define GNULIB_defined_F_DUPFD_CLOEXEC 1 +#else +# define GNULIB_defined_F_DUPFD_CLOEXEC 0 +#endif + +#ifndef F_DUPFD +# define F_DUPFD 1 +#endif + +#ifndef F_GETFD +# define F_GETFD 2 +#endif + /* Fix up the O_* macros. */ #if !defined O_DIRECT && defined O_DIRECTIO -/* Tru64 spells it `O_DIRECTIO'. */ +/* Tru64 spells it 'O_DIRECTIO'. */ # define O_DIRECT O_DIRECTIO #endif #if !defined O_CLOEXEC && defined O_NOINHERIT -/* Mingw spells it `O_NOINHERIT'. Intentionally leave it - undefined if not available. */ +/* Mingw spells it 'O_NOINHERIT'. */ # define O_CLOEXEC O_NOINHERIT #endif +#ifndef O_CLOEXEC +# define O_CLOEXEC 0 +#endif + #ifndef O_DIRECT # define O_DIRECT 0 #endif @@ -98,6 +212,14 @@ extern int _gl_register_fd (int fd, const char *filename); # define O_DSYNC 0 #endif +#ifndef O_EXEC +# define O_EXEC O_RDONLY /* This is often close enough in older systems. */ +#endif + +#ifndef O_IGNORE_CTTY +# define O_IGNORE_CTTY 0 +#endif + #ifndef O_NDELAY # define O_NDELAY 0 #endif @@ -110,6 +232,19 @@ extern int _gl_register_fd (int fd, const char *filename); # define O_NONBLOCK O_NDELAY #endif +/* If the gnulib module 'nonblocking' is in use, guarantee a working non-zero + value of O_NONBLOCK. Otherwise, O_NONBLOCK is defined (above) to O_NDELAY + or to 0 as fallback. */ +#if @GNULIB_NONBLOCKING@ +# if O_NONBLOCK +# define GNULIB_defined_O_NONBLOCK 0 +# else +# define GNULIB_defined_O_NONBLOCK 1 +# undef O_NONBLOCK +# define O_NONBLOCK 0x40000000 +# endif +#endif + #ifndef O_NOCTTY # define O_NOCTTY 0 #endif @@ -118,14 +253,26 @@ extern int _gl_register_fd (int fd, const char *filename); # define O_NOFOLLOW 0 #endif +#ifndef O_NOLINK +# define O_NOLINK 0 +#endif + #ifndef O_NOLINKS # define O_NOLINKS 0 #endif +#ifndef O_NOTRANS +# define O_NOTRANS 0 +#endif + #ifndef O_RSYNC # define O_RSYNC 0 #endif +#ifndef O_SEARCH +# define O_SEARCH O_RDONLY /* This is often close enough in older systems. */ +#endif + #ifndef O_SYNC # define O_SYNC 0 #endif @@ -134,6 +281,11 @@ extern int _gl_register_fd (int fd, const char *filename); # define O_TTY_INIT 0 #endif +#if ~O_ACCMODE & (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH) +# undef O_ACCMODE +# define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH) +#endif + /* For systems that distinguish between text and binary I/O. O_BINARY is usually declared in fcntl.h */ #if !defined O_BINARY && defined _O_BINARY @@ -153,7 +305,43 @@ extern int _gl_register_fd (int fd, const char *filename); # define O_TEXT 0 #endif +/* Fix up the AT_* macros. */ + +/* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive. Its + value exceeds INT_MAX, so its use as an int doesn't conform to the + C standard, and GCC and Sun C complain in some cases. If the bug + is present, undef AT_FDCWD here, so it can be redefined below. */ +#if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553 +# undef AT_FDCWD +#endif + +/* Use the same bit pattern as Solaris 9, but with the proper + signedness. The bit pattern is important, in case this actually is + Solaris with the above workaround. */ +#ifndef AT_FDCWD +# define AT_FDCWD (-3041965) +#endif + +/* Use the same values as Solaris 9. This shouldn't matter, but + there's no real reason to differ. */ +#ifndef AT_SYMLINK_NOFOLLOW +# define AT_SYMLINK_NOFOLLOW 4096 +#endif + +#ifndef AT_REMOVEDIR +# define AT_REMOVEDIR 1 +#endif + +/* Solaris 9 lacks these two, so just pick unique values. */ +#ifndef AT_SYMLINK_FOLLOW +# define AT_SYMLINK_FOLLOW 2 +#endif + +#ifndef AT_EACCESS +# define AT_EACCESS 4 +#endif + -#endif /* _GL_FCNTL_H */ -#endif /* _GL_FCNTL_H */ +#endif /* _@GUARD_PREFIX@_FCNTL_H */ +#endif /* _@GUARD_PREFIX@_FCNTL_H */ #endif