feat(vfs): Add fcntl and modify ioctl

components/newlib/newlib/include/fcntl.h

@@ -1 +1,4 @@
+#include <sys/socket.h>
+#undef fcntl
+
 #include <sys/fcntl.h>

components/newlib/newlib/include/sys/_default_fcntl.h

@@ -41,7 +41,9 @@ extern "C" {
 #define O_SYNC		_FSYNC
 /*	O_NDELAY	_FNDELAY 	set in include/fcntl.h */
 /*	O_NDELAY	_FNBIO 		set in include/fcntl.h */
+#ifndef O_NONBLOCK
 #define	O_NONBLOCK	_FNONBLOCK
+#endif
 #define	O_NOCTTY	_FNOCTTY
 /* For machines which care - */
 #if defined (__CYGWIN__)

components/vfs/src/fcntl.c

@@ -0,0 +1,31 @@
+// Copyright 2018-2019 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <stdarg.h>
+#include <fcntl.h>
+
+int fcntl(int fd, int request, ...)
+{
+    int val, ret;
+    va_list va;
+
+    va_start(va, request);
+    
+    val = va_arg(va, int);
+    ret = lwip_fcntl(fd, request, val);
+
+    va_end(va);
+
+    return ret;    
+}

components/vfs/src/ioctl.c

@@ -17,13 +17,14 @@
 
 int ioctl(int fd, int request, ...)
 {
-    int val, ret;
+    int ret;
+    void *p;
     va_list va;
 
     va_start(va, request);
     
-    val = va_arg(va, int);
-    ret = lwip_fcntl(fd, request, val);
+    p = va_arg(va, void *);
+    ret = lwip_ioctl(fd, request, p);
 
     va_end(va);