1. In struct stat, the variable that contains the file size is st_size. What is the variable that contains the file permission (protection)?
2. What is the POSIX macro to check if a file is a directory?
3. The flag defined for the st_mode field for a directory is S_IFDIR. What is its bitmask value? In Binary: In Octal:
4. What is the bit mask to check for owner has read permission? In Binary: In Octal:
5. What is the bit mask to check if a file has all the following permissions owner can read, write; group can read only; others cannot read/write/execute. In Binary: In Octal: