get_next_line

Write a function which returns a line read from a file descriptor, without the newline.

Function name

get_next_line

Prototype

int get_next_line(int fd, char **line);

Parameters

1. file descriptor for reading
2. The value of what has been read

Return value

• 1: A line has been read
• 0: EOF has been reached
• -1: An error happened

External functions

read, malloc, free

Bonus

• Use one single static variable.
• To be able to manage multiple file descriptor with your get_next_line. For example, if the file descriptors 3, 4 and 5 are accessible for reading, then you can call get_next_line once on 3, once on 4, once again on 3 then once on 5 etc. without losing the reading thread on each of the descriptors.

Compile

compile with the flag -D BUFFER_SIZE=xx