From 89ba41c79e09729ad48a230bc5c7eb09812110a7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Joakim=20Nohlg=C3=A5rd?= <joakim.nohlgard@eistec.se>
Date: Mon, 19 Dec 2016 11:21:38 +0100
Subject: [PATCH] sys/posix: Add sys/statvfs.h

---
 sys/posix/include/sys/statvfs.h | 78 +++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 sys/posix/include/sys/statvfs.h

diff --git a/sys/posix/include/sys/statvfs.h b/sys/posix/include/sys/statvfs.h
new file mode 100644
index 000000000..42c142023
--- /dev/null
+++ b/sys/posix/include/sys/statvfs.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2016 Eistec AB
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @file
+ * @brief   POSIX compatible sys/statvfs.h definitions
+ * @author  Joakim Nohlgård <joakim.nohlgard@eistec.se>
+ */
+
+/* If building on native we need to use the system libraries instead */
+#ifdef CPU_NATIVE
+#pragma GCC system_header
+/* without the GCC pragma above #include_next will trigger a pedantic error */
+#include_next <sys/statvfs.h>
+#else
+#ifndef SYS_STATVFS_H_
+#define SYS_STATVFS_H_
+
+#include <sys/types.h> /* for fsblkcnt_t, fsfilcnt_t */
+/** @todo Remove ifdef BOARD_MIPS_MALTA special case after
+ * [#6639](https://github.com/RIOT-OS/RIOT/pull/6639) is merged */
+#if MODULE_NEWLIB || defined(BOARD_MIPS_MALTA)
+/* newlib support for fsblkcnt_t was only recently added to the newlib git
+ * repository, commit f3e587d30a9f65d0c6551ad14095300f6e81672e, 15 apr 2016.
+ * Will be included in release 2.5.0, around new year 2016/2017.
+ * We provide the below workaround if the used tool chain is too old. */
+#ifndef _FSBLKCNT_T_DECLARED		/* for statvfs() */
+#include <stdint.h>
+/* Default to 32 bit file sizes on newlib platforms */
+typedef uint32_t fsblkcnt_t;
+typedef uint32_t fsfilcnt_t;
+#define _FSBLKCNT_T_DECLARED
+#endif
+#endif
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief File system information
+ */
+struct statvfs {
+    unsigned long f_bsize;   /**< File system block size. */
+    unsigned long f_frsize;  /**< Fundamental file system block size. */
+    fsblkcnt_t f_blocks;     /**< Total number of blocks on file system in
+                                  units of @c f_frsize. */
+    fsblkcnt_t f_bfree;      /**< Total number of free blocks. */
+    fsblkcnt_t f_bavail;     /**< Number of free blocks available to
+                                  non-privileged process. */
+    fsfilcnt_t f_files;      /**< Total number of file serial numbers. */
+    fsfilcnt_t f_ffree;      /**< Total number of free file serial numbers. */
+    fsfilcnt_t f_favail;     /**< Number of file serial numbers available to
+                                  non-privileged process. */
+
+    unsigned long f_fsid;    /**< File system ID. */
+    unsigned long f_flag;    /**< Bit mask of f_flag values. */
+    unsigned long f_namemax; /**< Maximum filename length. */
+};
+
+enum {
+    ST_RDONLY = 1,        /* Mount read-only.  */
+    ST_NOSUID = 2,        /* Ignore suid and sgid bits.  */
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SYS_STATVFS_H_ */
+
+#endif /* CPU_NATIVE */
+
+/** @} */