diff options
Diffstat (limited to 'src/dnonblock.c')
-rw-r--r-- | src/dnonblock.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/dnonblock.c b/src/dnonblock.c new file mode 100644 index 0000000..af24be2 --- /dev/null +++ b/src/dnonblock.c @@ -0,0 +1,37 @@ +/* + * This file is part of libdaemon. + * + * libdaemon is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * libdaemon is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with libdaemon; if not, write to the Free Software Foundation, + * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#include <fcntl.h> + +#include "dnonblock.h" + +int daemon_nonblock(int fd, int b) { + int a; + if ((a = fcntl(fd, F_GETFL)) < 0) + return -1; + + if (b) + a |= O_NDELAY; + else + a &= ~O_NDELAY; + + if (fcntl(fd, F_SETFL, a) < 0) + return -1; + + return 0; +} |