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* locale/locale.c: Include errno.h. * locale/localedef.c: Likewise. Tue Sep 19 00:02:06 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> * Makefile (distclean-1): Remove config.cache, config.log, config.h. (parent-mostlyclean): Remove all flavors of the parent library. * misc/mntent.c (getmntent): Skip multiple whitespace chars between fields. * hurd/hurdstartup.c (_hurd_startup): If RPC returns EXEC_STACK_ARGS flag, get args from stack. If args on stack but have info from RPC, relocate args on stack to make space for struct hurd_startup_data. * elf/dl-object.c: Include errno.h. * posix/execvp.c: Likewise. * dirent/scandir.c: Likewise. * sysdeps/posix/system.c: Likewise. * sysdeps/generic/setenv.c: Likewise. * stdlib/msort.c: Likewise. * stdio/memstream.c: Likewise. * stdio/fclose.c: Likewise. * stdio/getdelim.c: Likewise. * stdio/setvbuf.c: Likewise. * sysdeps/ieee754/ldexp.c: Likewise. * locale/locfile-parse.c: Likewise. * stdlib/lcong48_r.c: Don't check for null argument; let it fault. * stdlib/seed48_r.c: Likewise. * stdlib/srand48_r.c: Likewise. * stdlib/jrand48_r.c: Likewise. * stdlib/nrand48_r.c: Likewise. * misc/search.h: Many decls for hsearch functions.
87 lines
2.5 KiB
C
87 lines
2.5 KiB
C
/* Copyright (C) 1991, 1993, 1995 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library 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 GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <ansidecl.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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/* Make STREAM use the buffering method given in MODE.
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If MODE indicates full or line buffering, use BUF,
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a buffer of SIZE bytes; if BUF is NULL, malloc a buffer. */
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int
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DEFUN(setvbuf, (stream, buf, mode, size),
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FILE *stream AND char *buf AND int mode AND size_t size)
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{
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if (!__validfp(stream))
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{
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errno = EINVAL;
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return EOF;
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}
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/* The ANSI standard says setvbuf can only be called before any I/O is done,
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but we allow it to replace an old buffer, flushing it first. */
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if (stream->__buffer != NULL)
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{
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(void) fflush(stream);
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/* Free the old buffer if it was malloc'd. */
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if (!stream->__userbuf)
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free(stream->__buffer);
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}
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stream->__get_limit = stream->__put_limit = NULL;
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stream->__bufp = stream->__buffer = NULL;
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stream->__userbuf = stream->__linebuf = stream->__linebuf_active = 0;
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switch (mode)
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{
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default:
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errno = EINVAL;
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return EOF;
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case _IONBF: /* Unbuffered. */
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stream->__buffer = NULL;
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stream->__bufsize = 0;
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stream->__userbuf = 1;
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break;
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case _IOLBF: /* Line buffered. */
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stream->__linebuf = 1;
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case _IOFBF: /* Fully buffered. */
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if (size == 0)
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{
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errno = EINVAL;
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return EOF;
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}
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stream->__bufsize = size;
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if (buf != NULL)
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stream->__userbuf = 1;
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else if ((buf = (char *) malloc(size)) == NULL)
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return EOF;
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stream->__buffer = buf;
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break;
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}
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stream->__bufp = stream->__buffer;
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stream->__get_limit = stream->__buffer;
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/* The next output operation will prime the stream for writing. */
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stream->__put_limit = stream->__buffer;
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return 0;
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}
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