63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
/* setlinebuf.c - line-buffer a stdio stream. */
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/* Copyright (C) 1997 Free Software Foundation, Inc.
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This file is part of GNU Bash, the Bourne Again SHell.
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Bash is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Bash is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Bash. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include <stdio.h>
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#include <xmalloc.h>
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#if defined (USING_BASH_MALLOC)
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# define LBUF_BUFSIZE 1008
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#else
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# define LBUF_BUFSIZE BUFSIZ
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#endif
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/* Cause STREAM to buffer lines as opposed to characters or blocks. */
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int
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sh_setlinebuf (stream)
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FILE *stream;
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{
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char *local_linebuf;
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#if !defined (HAVE_SETLINEBUF) && !defined (HAVE_SETVBUF)
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return (0);
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#endif
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#if defined (USING_BASH_MALLOC)
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local_linebuf = (char *)xmalloc (LBUF_BUFSIZE);
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#else
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local_linebuf = (char *)NULL;
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#endif
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#if defined (HAVE_SETVBUF)
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# if defined (SETVBUF_REVERSED)
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return (setvbuf (stream, _IOLBF, local_linebuf, LBUF_BUFSIZE));
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# else /* !SETVBUF_REVERSED */
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return (setvbuf (stream, local_linebuf, _IOLBF, LBUF_BUFSIZE));
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# endif /* !SETVBUF_REVERSED */
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# else /* !HAVE_SETVBUF */
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setlinebuf (stream);
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return (0);
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#endif /* !HAVE_SETVBUF */
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}
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