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;
+}