get_next_line

return

• 1: A lign has been read
• 0: End of the read
• -1: An error occured

BUFF_SIZE

Changing the BUFF_SIZE to a very big value, ex. 10000000, make the program SEGFAULT because the default size of the stack is only 8192000 byte (ulimit -Sa) so the stack oxplodes. To use the previous BUFF_SIZE you can change the size of the stack to 10000000 byte with ulimit -s 10000.