File system

File system ftruncate

// PROTOTYPE
int ftruncate(int fd, off_t length)

Truncate an open file to a given length.

• fd: The file descriptor for the file, return from the open call.
• length: length in bytes.

Returns 0 on success. On error, returns -1 and sets errno. Some possible errno values include:

• ENOENT: File does not exist.
• ENOSPC There is no space on the file system.