// Copyright (c) Microsoft Corporation. All rights reserved.

// Licensed under the MIT License.

//! @brief Retrieve the device ID and inode number of a file

#include "getinodedata.h"

#include <assert.h>

#include <errno.h>

#include <locale.h>

#include <sys/types.h>

#include <sys/stat.h>

#include <unistd.h>

#include <string>

//! @brief GetInodeData retrieves a file's device and inode information.

//!

//! GetInodeData

//!

//! @param[in] fileName

//! @parblock

//! A pointer to the buffer that contains the file path

//!

//! char* is marshaled as an LPStr, which on Linux is UTF-8.

//! @endparblock

//!

//! @param[out] device

//! @parblock

//! Points to a uint64_t value that will contain the file's device ID.

//! @endparblock

//!

//! @param[out] inode

//! @parblock

//! Points to a uint64_t value that will contain the file's inode number.

//! @endparblock

//!

//! @retval 0 If the function succeeds, -1 otherwise.

//!

int32_t GetInodeData(const char* fileName, uint64_t* device, uint64_t* inode)

{

assert(fileName);

assert(device);

assert(inode);

errno = 0;

struct stat statBuf;

int ret = stat(fileName, &statBuf);

if (ret == 0)

{

*device = statBuf.st_dev;

*inode = statBuf.st_ino;

}

return ret;

}