1 files changed, 14 insertions, 0 deletions
diff --git a/nonblock.c b/nonblock.c
new file mode 100644
index 0000000..dbe31d3
--- /dev/null
+++ b/nonblock.c
@@ -0,0 +1,14 @@
+/* Set stdin to nonblocking. */
+#include <sys/types.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+int main(void) {
+	int flags;
+	flags = fcntl(0, F_GETFL);
+	flags |= O_NONBLOCK;
+	fcntl(0, F_SETFL, (long) flags);
+	flags = read(0, &flags, 1);
+	printf("read returns %d, errno == %d\n", flags, errno);
+	return 0;
+}