diff options
Diffstat (limited to 'stdio/setvbuf.c')
-rw-r--r-- | stdio/setvbuf.c | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/stdio/setvbuf.c b/stdio/setvbuf.c deleted file mode 100644 index bfa32b53cf..0000000000 --- a/stdio/setvbuf.c +++ /dev/null @@ -1,88 +0,0 @@ -/* Copyright (C) 1991, 1993, 1995, 1996, 1997 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <stddef.h> -#include <stdio.h> -#include <stdlib.h> -#include <errno.h> - - -/* Make STREAM use the buffering method given in MODE. - If MODE indicates full or line buffering, use BUF, - a buffer of SIZE bytes; if BUF is NULL, malloc a buffer. */ -int -setvbuf (stream, buf, mode, size) - FILE *stream; - char *buf; - int mode; - size_t size; -{ - if (!__validfp (stream)) - { - __set_errno (EINVAL); - return EOF; - } - - /* The ANSI standard says setvbuf can only be called before any I/O is done, - but we allow it to replace an old buffer, flushing it first. */ - if (stream->__buffer != NULL) - { - (void) fflush (stream); - /* Free the old buffer if it was malloc'd. */ - if (!stream->__userbuf) - free(stream->__buffer); - } - - stream->__get_limit = stream->__put_limit = NULL; - stream->__bufp = stream->__buffer = NULL; - stream->__userbuf = stream->__linebuf = stream->__linebuf_active = 0; - - switch (mode) - { - default: - __set_errno (EINVAL); - return EOF; - case _IONBF: /* Unbuffered. */ - stream->__buffer = NULL; - stream->__bufsize = 0; - stream->__userbuf = 1; - break; - case _IOLBF: /* Line buffered. */ - stream->__linebuf = 1; - case _IOFBF: /* Fully buffered. */ - if (size == 0) - { - __set_errno (EINVAL); - return EOF; - } - stream->__bufsize = size; - if (buf != NULL) - stream->__userbuf = 1; - else if ((buf = (char *) malloc (size)) == NULL) - return EOF; - stream->__buffer = buf; - break; - } - - stream->__bufp = stream->__buffer; - stream->__get_limit = stream->__buffer; - /* The next output operation will prime the stream for writing. */ - stream->__put_limit = stream->__buffer; - - return 0; -} |