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fgets
[get character string from a file or stream]

SYNOPSIS
#include <stdio.h>
char *fgets(char *buf, int n, FILE *fp);

DESCRIPTION
fgets reads at most n-1 characters from fp until a newline is found. The characters including to the newline are stored in buf. The buffer is terminated with a 0.

RETURNS
fgets returns the buffer passed to it, with the data filled in. If end of file occurs with some data already accumulated, the data is returned with no other indication. If no data are read, NULL is returned instead.

COMPLIANCE
fgets should replace all uses of gets. Note however that fgets returns all of the data, while gets removes the trailing newline (with no indication that it has done so.)

Supporting OS subroutines required: close, fstat, isatty, lseek, read, sbrk, write.