/* setlinebuf.c - line-buffer a stdio stream. */ /* Copyright (C) 1997 Free Software Foundation, Inc. This file is part of GNU Bash, the Bourne Again SHell. Bash is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. Bash is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Bash; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA */ #include <config.h> #include <stdio.h> #include <xmalloc.h> #if defined (USING_BASH_MALLOC) # define LBUF_BUFSIZE 1008 #else # define LBUF_BUFSIZE BUFSIZ #endif /* Cause STREAM to buffer lines as opposed to characters or blocks. */ int sh_setlinebuf (stream) FILE *stream; { char *local_linebuf; #if !defined (HAVE_SETLINEBUF) && !defined (HAVE_SETVBUF) return (0); #endif #if defined (USING_BASH_MALLOC) local_linebuf = (char *)xmalloc (LBUF_BUFSIZE); #else local_linebuf = (char *)NULL; #endif #if defined (HAVE_SETVBUF) # if defined (SETVBUF_REVERSED) return (setvbuf (stream, _IOLBF, local_linebuf, LBUF_BUFSIZE)); # else /* !SETVBUF_REVERSED */ return (setvbuf (stream, local_linebuf, _IOLBF, LBUF_BUFSIZE)); # endif /* !SETVBUF_REVERSED */ # else /* !HAVE_SETVBUF */ setlinebuf (stream); return (0); #endif /* !HAVE_SETVBUF */ }