1/***********************************************************************
2*                                                                      *
3*               This software is part of the ast package               *
4*          Copyright (c) 1985-2010 AT&T Intellectual Property          *
5*                      and is licensed under the                       *
6*                  Common Public License, Version 1.0                  *
7*                    by AT&T Intellectual Property                     *
8*                                                                      *
9*                A copy of the License is available at                 *
10*            http://www.opensource.org/licenses/cpl1.0.txt             *
11*         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
12*                                                                      *
13*              Information and Software Systems Research               *
14*                            AT&T Research                             *
15*                           Florham Park NJ                            *
16*                                                                      *
17*                 Glenn Fowler <gsf@research.att.com>                  *
18*                  David Korn <dgk@research.att.com>                   *
19*                   Phong Vo <kpv@research.att.com>                    *
20*                                                                      *
21***********************************************************************/
22#pragma prototyped
23/*
24 * Glenn Fowler
25 * AT&T Research
26 *
27 * sfio tmp string buffer support
28 */
29
30#include <sfio_t.h>
31#include <ast.h>
32
33#if __OBSOLETE__ >= 20070101 /* sfstr* macros now use sfsetbuf() */
34
35NoN(sfstrtmp)
36
37#else
38
39#if defined(__EXPORT__)
40#define extern	__EXPORT__
41#endif
42
43/*
44 * replace buffer in string stream f for either SF_READ or SF_WRITE
45 */
46
47extern int
48sfstrtmp(register Sfio_t* f, int mode, void* buf, size_t siz)
49{
50	if (!(f->_flags & SF_STRING))
51		return -1;
52	if (f->_flags & SF_MALLOC)
53		free(f->_data);
54	f->_flags &= ~(SF_ERROR|SF_MALLOC);
55	f->mode = mode;
56	f->_next = f->_data = (unsigned char*)buf;
57	f->_endw = f->_endr = f->_endb = f->_data + siz;
58	f->_size = siz;
59	return 0;
60}
61
62#endif
63