1 files changed, 24 insertions, 0 deletions
diff --git a/ndelay.c b/ndelay.c
new file mode 100644
index 0000000..f4b5eb8
--- /dev/null
+++ b/ndelay.c
@@ -0,0 +1,24 @@
+#include <sys/types.h>
+#include <fcntl.h>
+#include "ndelay.h"
+
+/**
+	@file ndelay.c
+	@author djb
+	@soure qmail	
+	@brief delaying of IO operations
+*/
+
+#ifndef O_NONBLOCK
+#define O_NONBLOCK O_NDELAY
+#endif
+
+int ndelay_on(int fd)
+{
+  return fcntl(fd,F_SETFL,fcntl(fd,F_GETFL,0) | O_NONBLOCK);
+}
+
+int ndelay_off(int fd)
+{
+  return fcntl(fd,F_SETFL,fcntl(fd,F_GETFL,0) & ~O_NONBLOCK);
+}