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 */
/* 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
}