update IDF libs and includes

tools/sdk/include/vfs/esp_vfs.h

@@ -21,6 +21,8 @@
 #include <sys/types.h>
 #include <sys/reent.h>
 #include <sys/stat.h>
+#include <dirent.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -106,6 +108,38 @@ typedef struct
         int (*rename_p)(void* ctx, const char *src, const char *dst);
         int (*rename)(const char *src, const char *dst);
     };
+    union {
+        DIR* (*opendir_p)(void* ctx, const char* name);
+        DIR* (*opendir)(const char* name);
+    };
+    union {
+        struct dirent* (*readdir_p)(void* ctx, DIR* pdir);
+        struct dirent* (*readdir)(DIR* pdir);
+    };
+    union {
+        int (*readdir_r_p)(void* ctx, DIR* pdir, struct dirent* entry, struct dirent** out_dirent);
+        int (*readdir_r)(DIR* pdir, struct dirent* entry, struct dirent** out_dirent);
+    };
+    union {
+        long (*telldir_p)(void* ctx, DIR* pdir);
+        long (*telldir)(DIR* pdir);
+    };
+    union {
+        void (*seekdir_p)(void* ctx, DIR* pdir, long offset);
+        void (*seekdir)(DIR* pdir, long offset);
+    };
+    union {
+        int (*closedir_p)(void* ctx, DIR* pdir);
+        int (*closedir)(DIR* pdir);
+    };
+    union {
+        int (*mkdir_p)(void* ctx, const char* name, mode_t mode);
+        int (*mkdir)(const char* name, mode_t mode);
+    };
+    union {
+        int (*rmdir_p)(void* ctx, const char* name);
+        int (*rmdir)(const char* name);
+    };
 } esp_vfs_t;
 
 
@@ -131,6 +165,15 @@ typedef struct
 esp_err_t esp_vfs_register(const char* base_path, const esp_vfs_t* vfs, void* ctx);
 
 
+/**
+ * Unregister a virtual filesystem for given path prefix
+ *
+ * @param base_path  file prefix previously used in esp_vfs_register call
+ * @return ESP_OK if successful, ESP_ERR_INVALID_STATE if VFS for given prefix
+ *         hasn't been registered
+ */
+esp_err_t esp_vfs_unregister(const char* base_path);
+
 /**
  * These functions are to be used in newlib syscall table. They will be called by
  * newlib when it needs to use any of the syscalls.

tools/sdk/include/vfs/sys/dirent.h

@@ -0,0 +1,55 @@
+// Copyright 2015-2016 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.
+
+#pragma once
+
+#include <stddef.h>
+#include <stdint.h>
+
+/**
+ * This header file provides POSIX-compatible definitions of directory
+ * access functions and related data types.
+ * See http://pubs.opengroup.org/onlinepubs/7908799/xsh/dirent.h.html
+ * for reference.
+ */
+
+/**
+ * @brief Opaque directory structure
+ */
+typedef struct {
+    uint16_t dd_vfs_idx; /*!< VFS index, not to be used by applications */
+    uint16_t dd_rsv;     /*!< field reserved for future extension */
+    /* remaining fields are defined by VFS implementation */
+} DIR;
+
+/**
+ * @brief Directory entry structure
+ */
+struct dirent {
+    int d_ino;          /*!< file number */
+    uint8_t d_type;     /*!< not defined in POSIX, but present in BSD and Linux */
+#define DT_UNKNOWN  0
+#define DT_REG      1
+#define DT_DIR      2
+    char d_name[256];   /*!< zero-terminated file name */
+};
+
+DIR* opendir(const char* name);
+struct dirent* readdir(DIR* pdir);
+long telldir(DIR* pdir);
+void seekdir(DIR* pdir, long loc);
+void rewinddir(DIR* pdir);
+int closedir(DIR* pdir);
+int readdir_r(DIR* pdir, struct dirent* entry, struct dirent** out_dirent);
+