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/* Copyright 2002, Red Hat Inc. - all rights reserved */
/*
FUNCTION
<<getline>>---read a line from a file
INDEX
getline
ANSI_SYNOPSIS
#include <stdio.h>
ssize_t getline(char **<[bufptr]>, size_t *<[n]>, FILE *<[fp]>);
TRAD_SYNOPSIS
#include <stdio.h>
ssize_t getline(<[bufptr]>, <[n]>, <[fp]>)
char **<[bufptr]>;
size_t *<[n]>;
FILE *<[fp]>;
DESCRIPTION
<<getline>> reads a file <[fp]> up to and possibly including the
newline character. The line is read into a buffer pointed to
by <[bufptr]> and designated with size *<[n]>. If the buffer is
not large enough, it will be dynamically grown by <<getdelim>>.
As the buffer is grown, the pointer to the size <[n]> will be
updated.
<<getline>> is equivalent to getdelim(bufptr, n, '\n', fp);
RETURNS
<<getline>> returns <<-1>> if no characters were successfully read,
otherwise, it returns the number of bytes successfully read.
at end of file, the result is nonzero.
PORTABILITY
<<getline>> is a glibc extension.
No supporting OS subroutines are directly required.
*/
#include <_ansi.h>
#include <stdio.h>
extern ssize_t _EXFUN(__getdelim, (char **, size_t *, int, FILE *));
ssize_t
_DEFUN(__getline, (lptr, n, fp),
char **lptr _AND
size_t *n _AND
FILE *fp)
{
return __getdelim (lptr, n, '\n', fp);
}
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