diff options
Diffstat (limited to 'gnulib/lib/unistd.in.h')
| -rw-r--r-- | gnulib/lib/unistd.in.h | 137 |
1 files changed, 93 insertions, 44 deletions
diff --git a/gnulib/lib/unistd.in.h b/gnulib/lib/unistd.in.h index 119cd142..77e5675a 100644 --- a/gnulib/lib/unistd.in.h +++ b/gnulib/lib/unistd.in.h @@ -75,18 +75,21 @@ #endif /* mingw fails to declare _exit in <unistd.h>. */ -/* mingw, BeOS, Haiku declare environ in <stdlib.h>, not in <unistd.h>. */ +/* mingw, MSVC, BeOS, Haiku declare environ in <stdlib.h>, not in + <unistd.h>. */ /* Solaris declares getcwd not only in <unistd.h> but also in <stdlib.h>. */ /* But avoid namespace pollution on glibc systems. */ #ifndef __GLIBC__ # include <stdlib.h> #endif -/* mingw declares getcwd in <io.h>, not in <unistd.h>. */ -#if ((@GNULIB_GETCWD@ || defined GNULIB_POSIXCHECK) \ +/* Native Windows platforms declare chdir, getcwd, rmdir in + <io.h> and/or <direct.h>, not in <unistd.h>. */ +#if ((@GNULIB_CHDIR@ || @GNULIB_GETCWD@ || @GNULIB_RMDIR@ \ + || defined GNULIB_POSIXCHECK) \ && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)) # include <io.h> /* mingw32, mingw64 */ -# include <direct.h> /* mingw64 */ +# include <direct.h> /* mingw64, MSVC 9 */ #endif /* AIX and OSF/1 5.1 declare getdomainname in <netdb.h>, not in <unistd.h>. @@ -98,6 +101,12 @@ # include <netdb.h> #endif +/* MSVC defines off_t in <sys/types.h>. */ +#if !@HAVE_UNISTD_H@ +/* Get off_t. */ +# include <sys/types.h> +#endif + #if (@GNULIB_READ@ || @GNULIB_WRITE@ \ || @GNULIB_READLINK@ || @GNULIB_READLINKAT@ \ || @GNULIB_PREAD@ || @GNULIB_PWRITE@ || defined GNULIB_POSIXCHECK) @@ -224,12 +233,24 @@ _GL_WARN_ON_USE (access, "the access function is a security risk - " #endif +#if @GNULIB_CHDIR@ +_GL_CXXALIAS_SYS (chdir, int, (const char *file) _GL_ARG_NONNULL ((1))); +_GL_CXXALIASWARN (chdir); +#elif defined GNULIB_POSIXCHECK +# undef chdir +# if HAVE_RAW_DECL_CHDIR +_GL_WARN_ON_USE (chown, "chdir is not always in <unistd.h> - " + "use gnulib module chdir for portability"); +# endif +#endif + + #if @GNULIB_CHOWN@ /* Change the owner of FILE to UID (if UID is not -1) and the group of FILE to GID (if GID is not -1). Follow symbolic links. Return 0 if successful, otherwise -1 and errno set. - See the POSIX:2001 specification - <http://www.opengroup.org/susv3xsh/chown.html>. */ + See the POSIX:2008 specification + <http://pubs.opengroup.org/onlinepubs/9699919799/functions/chown.html. */ # if @REPLACE_CHOWN@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef chown @@ -280,24 +301,32 @@ _GL_WARN_ON_USE (close, "close does not portably work on sockets - " #endif -#if @REPLACE_DUP@ -# if !(defined __cplusplus && defined GNULIB_NAMESPACE) -# define dup rpl_dup -# endif +#if @GNULIB_DUP@ +# if @REPLACE_DUP@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define dup rpl_dup +# endif _GL_FUNCDECL_RPL (dup, int, (int oldfd)); _GL_CXXALIAS_RPL (dup, int, (int oldfd)); -#else +# else _GL_CXXALIAS_SYS (dup, int, (int oldfd)); -#endif +# endif _GL_CXXALIASWARN (dup); +#elif defined GNULIB_POSIXCHECK +# undef dup +# if HAVE_RAW_DECL_DUP +_GL_WARN_ON_USE (dup, "dup is unportable - " + "use gnulib module dup for portability"); +# endif +#endif #if @GNULIB_DUP2@ /* Copy the file descriptor OLDFD into file descriptor NEWFD. Do nothing if NEWFD = OLDFD, otherwise close NEWFD first if it is open. Return newfd if successful, otherwise -1 and errno set. - See the POSIX:2001 specification - <http://www.opengroup.org/susv3xsh/dup2.html>. */ + See the POSIX:2008 specification + <http://pubs.opengroup.org/onlinepubs/9699919799/functions/dup2.html>. */ # if @REPLACE_DUP2@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define dup2 rpl_dup2 @@ -426,8 +455,8 @@ _GL_WARN_ON_USE (faccessat, "faccessat is not portable - " /* Change the process' current working directory to the directory on which the given file descriptor is open. Return 0 if successful, otherwise -1 and errno set. - See the POSIX:2001 specification - <http://www.opengroup.org/susv3xsh/fchdir.html>. */ + See the POSIX:2008 specification + <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fchdir.html>. */ # if ! @HAVE_FCHDIR@ _GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/)); @@ -484,11 +513,30 @@ _GL_WARN_ON_USE (fchownat, "fchownat is not portable - " #endif -#if @GNULIB_FSYNC@ +#if @GNULIB_FDATASYNC@ /* Synchronize changes to a file. Return 0 if successful, otherwise -1 and errno set. - See POSIX:2001 specification - <http://www.opengroup.org/susv3xsh/fsync.html>. */ + See POSIX:2008 specification + <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fdatasync.html>. */ +# if !@HAVE_FDATASYNC@ || !@HAVE_DECL_FDATASYNC@ +_GL_FUNCDECL_SYS (fdatasync, int, (int fd)); +# endif +_GL_CXXALIAS_SYS (fdatasync, int, (int fd)); +_GL_CXXALIASWARN (fdatasync); +#elif defined GNULIB_POSIXCHECK +# undef fdatasync +# if HAVE_RAW_DECL_FDATASYNC +_GL_WARN_ON_USE (fdatasync, "fdatasync is unportable - " + "use gnulib module fdatasync for portability"); +# endif +#endif + + +#if @GNULIB_FSYNC@ +/* Synchronize changes, including metadata, to a file. + Return 0 if successful, otherwise -1 and errno set. + See POSIX:2008 specification + <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fsync.html>. */ # if !@HAVE_FSYNC@ _GL_FUNCDECL_SYS (fsync, int, (int fd)); # endif @@ -506,8 +554,8 @@ _GL_WARN_ON_USE (fsync, "fsync is unportable - " #if @GNULIB_FTRUNCATE@ /* Change the size of the file to which FD is opened to become equal to LENGTH. Return 0 if successful, otherwise -1 and errno set. - See the POSIX:2001 specification - <http://www.opengroup.org/susv3xsh/ftruncate.html>. */ + See the POSIX:2008 specification + <http://pubs.opengroup.org/onlinepubs/9699919799/functions/ftruncate.html>. */ # if !@HAVE_FTRUNCATE@ _GL_FUNCDECL_SYS (ftruncate, int, (int fd, off_t length)); # endif @@ -527,8 +575,8 @@ _GL_WARN_ON_USE (ftruncate, "ftruncate is unportable - " of BUF. Return BUF if successful, or NULL if the directory couldn't be determined or SIZE was too small. - See the POSIX:2001 specification - <http://www.opengroup.org/susv3xsh/getcwd.html>. + See the POSIX:2008 specification + <http://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 @@ -891,8 +939,8 @@ _GL_WARN_ON_USE (group_member, "group_member is unportable - " /* Change the owner of FILE to UID (if UID is not -1) and the group of FILE to GID (if GID is not -1). Do not follow symbolic links. Return 0 if successful, otherwise -1 and errno set. - See the POSIX:2001 specification - <http://www.opengroup.org/susv3xsh/lchown.html>. */ + See the POSIX:2008 specification + <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lchown.html>. */ # if @REPLACE_LCHOWN@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef lchown @@ -921,8 +969,8 @@ _GL_WARN_ON_USE (lchown, "lchown is unportable to pre-POSIX.1-2001 systems - " #if @GNULIB_LINK@ /* Create a new hard link for an existing file. Return 0 if successful, otherwise -1 and errno set. - See POSIX:2001 specification - <http://www.opengroup.org/susv3xsh/link.html>. */ + See POSIX:2008 specification + <http://pubs.opengroup.org/onlinepubs/9699919799/functions/link.html>. */ # if @REPLACE_LINK@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define link rpl_link @@ -987,8 +1035,8 @@ _GL_WARN_ON_USE (linkat, "linkat is unportable - " #if @GNULIB_LSEEK@ /* Set the offset of FD relative to SEEK_SET, SEEK_CUR, or SEEK_END. Return the new offset if successful, otherwise -1 and errno set. - See the POSIX:2001 specification - <http://www.opengroup.org/susv3xsh/lseek.html>. */ + See the POSIX:2008 specification + <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lseek.html>. */ # if @REPLACE_LSEEK@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define lseek rpl_lseek @@ -1058,8 +1106,9 @@ _GL_WARN_ON_USE (pipe2, "pipe2 is unportable - " #if @GNULIB_PREAD@ /* Read at most BUFSIZE bytes from FD into BUF, starting at OFFSET. Return the number of bytes placed into BUF if successful, otherwise - set errno and return -1. 0 indicates EOF. See the POSIX:2001 - specification <http://www.opengroup.org/susv3xsh/pread.html>. */ + set errno and return -1. 0 indicates EOF. + See the POSIX:2008 specification + <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pread.html>. */ # if @REPLACE_PREAD@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef pread @@ -1093,8 +1142,8 @@ _GL_WARN_ON_USE (pread, "pread is unportable - " /* Write at most BUFSIZE bytes from BUF into FD, starting at OFFSET. Return the number of bytes written if successful, otherwise set errno and return -1. 0 indicates nothing written. See the - POSIX:2001 specification - <http://www.opengroup.org/susv3xsh/pwrite.html>. */ + POSIX:2008 specification + <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pwrite.html>. */ # if @REPLACE_PWRITE@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef pwrite @@ -1126,9 +1175,9 @@ _GL_WARN_ON_USE (pwrite, "pwrite is unportable - " #if @GNULIB_READ@ /* Read up to COUNT bytes from file descriptor FD into the buffer starting - at BUF. See the POSIX:2001 specification - <http://www.opengroup.org/susv3xsh/read.html>. */ -# if @REPLACE_READ@ && @GNULIB_UNISTD_H_NONBLOCKING@ + at BUF. See the POSIX:2008 specification + <http://pubs.opengroup.org/onlinepubs/9699919799/functions/read.html>. */ +# if @REPLACE_READ@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef read # define read rpl_read @@ -1150,8 +1199,8 @@ _GL_CXXALIASWARN (read); /* Read the contents of the symbolic link FILE and place the first BUFSIZE bytes of it into BUF. Return the number of bytes placed into BUF if successful, otherwise -1 and errno set. - See the POSIX:2001 specification - <http://www.opengroup.org/susv3xsh/readlink.html>. */ + See the POSIX:2008 specification + <http://pubs.opengroup.org/onlinepubs/9699919799/functions/readlink.html>. */ # if @REPLACE_READLINK@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define readlink rpl_readlink @@ -1222,8 +1271,8 @@ _GL_WARN_ON_USE (rmdir, "rmdir is unportable - " #if @GNULIB_SLEEP@ /* Pause the execution of the current thread for N seconds. Returns the number of seconds left to sleep. - See the POSIX:2001 specification - <http://www.opengroup.org/susv3xsh/sleep.html>. */ + See the POSIX:2008 specification + <http://pubs.opengroup.org/onlinepubs/9699919799/functions/sleep.html>. */ # if @REPLACE_SLEEP@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef sleep @@ -1372,7 +1421,7 @@ _GL_WARN_ON_USE (unlinkat, "unlinkat is not portable - " /* Pause the execution of the current thread for N microseconds. Returns 0 on completion, or -1 on range error. See the POSIX:2001 specification - <http://www.opengroup.org/susv3xsh/sleep.html>. */ + <http://www.opengroup.org/susv3xsh/usleep.html>. */ # if @REPLACE_USLEEP@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef usleep @@ -1398,9 +1447,9 @@ _GL_WARN_ON_USE (usleep, "usleep is unportable - " #if @GNULIB_WRITE@ /* Write up to COUNT bytes starting at BUF to file descriptor FD. - See the POSIX:2001 specification - <http://www.opengroup.org/susv3xsh/write.html>. */ -# if @REPLACE_WRITE@ && (@GNULIB_UNISTD_H_NONBLOCKING@ || @GNULIB_UNISTD_H_SIGPIPE@) + See the POSIX:2008 specification + <http://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html>. */ +# if @REPLACE_WRITE@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef write # define write rpl_write |