56 lines
1.2 KiB
C++
56 lines
1.2 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
|
|
//
|
|
// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
|
|
//
|
|
// This Source Code Form is subject to the terms of the Mozilla Public License
|
|
// v. 2.0. If a copy of the MPL was not distributed with this file, You can
|
|
// obtain one at http://mozilla.org/MPL/2.0/.
|
|
#include "is_readable.h"
|
|
|
|
#ifdef _WIN32
|
|
# include <cstdio>
|
|
IGL_INLINE bool igl::is_readable(const char* filename)
|
|
{
|
|
FILE * f = fopen(filename,"r");
|
|
if(f == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
fclose(f);
|
|
return true;
|
|
}
|
|
#else
|
|
# include <sys/stat.h>
|
|
# include <unistd.h>
|
|
# include <iostream>
|
|
IGL_INLINE bool igl::is_readable(const char* filename)
|
|
{
|
|
// Check if file already exists
|
|
struct stat status;
|
|
if(stat(filename,&status)!=0)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Get current users uid and gid
|
|
uid_t this_uid = getuid();
|
|
gid_t this_gid = getgid();
|
|
|
|
// Dealing with owner
|
|
if( this_uid == status.st_uid )
|
|
{
|
|
return S_IRUSR & status.st_mode;
|
|
}
|
|
|
|
// Dealing with group member
|
|
if( this_gid == status.st_gid )
|
|
{
|
|
return S_IRGRP & status.st_mode;
|
|
}
|
|
|
|
// Dealing with other
|
|
return S_IROTH & status.st_mode;
|
|
|
|
}
|
|
#endif
|