#ifndef IGL_IS_READABLE_H #define IGL_IS_READABLE_H namespace igl { // Check if a file is reabable like PHP's is_readable function: // http://www.php.net/manual/en/function.is-readable.php // Input: // filename path to file // Returns true if file exists and is readable and false if file doesn't // exist or *is not readable* inline bool is_readable(const char * filename); } // Implementation #include #include 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