X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fcloexec.c;h=79d4ed0b8d29a0e03bcba408cf45f26b39e94b36;hb=794b55ff3dcebba4518b555161f97ef6524a7270;hp=20f30db45d868321f6d7c8a3728b9030e3ff37ac;hpb=f68c57a7466a299f333352b6d6c958a3a36c0e3c;p=gnulib.git diff --git a/lib/cloexec.c b/lib/cloexec.c index 20f30db45..79d4ed0b8 100644 --- a/lib/cloexec.c +++ b/lib/cloexec.c @@ -13,7 +13,7 @@ You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. The code is taken from glibc/manual/llio.texi */ @@ -27,9 +27,7 @@ # include #endif -#if HAVE_FCNTL_H -# include -#endif +#include #ifndef FD_CLOEXEC # define FD_CLOEXEC 1 @@ -37,27 +35,29 @@ /* Set the `FD_CLOEXEC' flag of DESC if VALUE is true, or clear the flag if VALUE is false. - Return true on success, or false on error with `errno' set. */ + Return 0 on success, or -1 on error with `errno' set. */ -bool +int set_cloexec_flag (int desc, bool value) { #if defined F_GETFD && defined F_SETFD int flags = fcntl (desc, F_GETFD, 0); - int newflags; - if (flags < 0) - return false; + if (0 <= flags) + { + int newflags = (value ? flags | FD_CLOEXEC : flags & ~FD_CLOEXEC); - newflags = (value ? flags | FD_CLOEXEC : flags & ~FD_CLOEXEC); + if (flags == newflags + || fcntl (desc, F_SETFD, newflags) != -1) + return 0; + } - return (flags == newflags - || fcntl (desc, F_SETFD, newflags) != -1); + return -1; #else - return true; + return 0; #endif }