mirror of
https://github.com/autc04/Retro68.git
synced 2024-09-08 05:54:40 +00:00
47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
/* Copyright 2002, Red Hat Inc. - all rights reserved */
|
|
/*
|
|
FUNCTION
|
|
<<getline>>---read a line from a file
|
|
|
|
INDEX
|
|
getline
|
|
|
|
SYNOPSIS
|
|
#include <stdio.h>
|
|
ssize_t getline(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 __getdelim (char **, size_t *, int, FILE *);
|
|
|
|
ssize_t
|
|
__getline (char **lptr,
|
|
size_t *n,
|
|
FILE *fp)
|
|
{
|
|
return __getdelim (lptr, n, '\n', fp);
|
|
}
|
|
|