FIONBIO and FIONREAD don't apply to directories, files, attributes: returns ENOTTY in these cases. This fixes #7279.

ENOTTY could also be replaced with a B_ error code.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40686 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/system/kernel/fs/fd.cpp

@@ -12,6 +12,7 @@
 
 #include <stdlib.h>
 #include <string.h>
+#include <sys/ioctl.h>
 
 #include <OS.h>
 
@@ -515,6 +516,17 @@ fd_ioctl(bool kernelFD, int fd, uint32 op, void* buffer, size_t length)
 	if (descriptor == NULL)
 		return B_FILE_ERROR;
 
+	if (op == FIONBIO || op == FIONREAD) {
+		switch (descriptor->type) {
+			case FDTYPE_FILE:
+			case FDTYPE_DIR:
+			case FDTYPE_ATTR_DIR:
+			case FDTYPE_ATTR:
+				put_fd(descriptor);
+				return ENOTTY;
+		}
+	}	
+
 	if (descriptor->ops->fd_ioctl)
 		status = descriptor->ops->fd_ioctl(descriptor, op, buffer, length);
 	else