xref: /onnv-gate/usr/src/lib/libast/common/disc/sfstrtmp.c (revision 4887:feebf9260c2e)
1*4887Schin /***********************************************************************
2*4887Schin *                                                                      *
3*4887Schin *               This software is part of the ast package               *
4*4887Schin *           Copyright (c) 1985-2007 AT&T Knowledge Ventures            *
5*4887Schin *                      and is licensed under the                       *
6*4887Schin *                  Common Public License, Version 1.0                  *
7*4887Schin *                      by AT&T Knowledge Ventures                      *
8*4887Schin *                                                                      *
9*4887Schin *                A copy of the License is available at                 *
10*4887Schin *            http://www.opensource.org/licenses/cpl1.0.txt             *
11*4887Schin *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
12*4887Schin *                                                                      *
13*4887Schin *              Information and Software Systems Research               *
14*4887Schin *                            AT&T Research                             *
15*4887Schin *                           Florham Park NJ                            *
16*4887Schin *                                                                      *
17*4887Schin *                 Glenn Fowler <gsf@research.att.com>                  *
18*4887Schin *                  David Korn <dgk@research.att.com>                   *
19*4887Schin *                   Phong Vo <kpv@research.att.com>                    *
20*4887Schin *                                                                      *
21*4887Schin ***********************************************************************/
22*4887Schin #pragma prototyped
23*4887Schin /*
24*4887Schin  * Glenn Fowler
25*4887Schin  * AT&T Research
26*4887Schin  *
27*4887Schin  * sfio tmp string buffer support
28*4887Schin  */
29*4887Schin 
30*4887Schin #include <sfio_t.h>
31*4887Schin #include <ast.h>
32*4887Schin 
33*4887Schin #if __OBSOLETE__ >= 20070101 /* sfstr* macros now use sfsetbuf() */
34*4887Schin 
35*4887Schin NoN(sfstrtmp)
36*4887Schin 
37*4887Schin #else
38*4887Schin 
39*4887Schin #if defined(__EXPORT__)
40*4887Schin #define extern	__EXPORT__
41*4887Schin #endif
42*4887Schin 
43*4887Schin /*
44*4887Schin  * replace buffer in string stream f for either SF_READ or SF_WRITE
45*4887Schin  */
46*4887Schin 
47*4887Schin extern int
48*4887Schin sfstrtmp(register Sfio_t* f, int mode, void* buf, size_t siz)
49*4887Schin {
50*4887Schin 	if (!(f->_flags & SF_STRING))
51*4887Schin 		return -1;
52*4887Schin 	if (f->_flags & SF_MALLOC)
53*4887Schin 		free(f->_data);
54*4887Schin 	f->_flags &= ~(SF_ERROR|SF_MALLOC);
55*4887Schin 	f->mode = mode;
56*4887Schin 	f->_next = f->_data = (unsigned char*)buf;
57*4887Schin 	f->_endw = f->_endr = f->_endb = f->_data + siz;
58*4887Schin 	f->_size = siz;
59*4887Schin 	return 0;
60*4887Schin }
61*4887Schin 
62*4887Schin #endif
63