xref: /onnv-gate/usr/src/lib/libast/common/disc/sfstrtmp.c (revision 12068:08a39a083754)
14887Schin /***********************************************************************
24887Schin *                                                                      *
34887Schin *               This software is part of the ast package               *
4*12068SRoger.Faulkner@Oracle.COM *          Copyright (c) 1985-2010 AT&T Intellectual Property          *
54887Schin *                      and is licensed under the                       *
64887Schin *                  Common Public License, Version 1.0                  *
78462SApril.Chin@Sun.COM *                    by AT&T Intellectual Property                     *
84887Schin *                                                                      *
94887Schin *                A copy of the License is available at                 *
104887Schin *            http://www.opensource.org/licenses/cpl1.0.txt             *
114887Schin *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
124887Schin *                                                                      *
134887Schin *              Information and Software Systems Research               *
144887Schin *                            AT&T Research                             *
154887Schin *                           Florham Park NJ                            *
164887Schin *                                                                      *
174887Schin *                 Glenn Fowler <gsf@research.att.com>                  *
184887Schin *                  David Korn <dgk@research.att.com>                   *
194887Schin *                   Phong Vo <kpv@research.att.com>                    *
204887Schin *                                                                      *
214887Schin ***********************************************************************/
224887Schin #pragma prototyped
234887Schin /*
244887Schin  * Glenn Fowler
254887Schin  * AT&T Research
264887Schin  *
274887Schin  * sfio tmp string buffer support
284887Schin  */
294887Schin 
304887Schin #include <sfio_t.h>
314887Schin #include <ast.h>
324887Schin 
334887Schin #if __OBSOLETE__ >= 20070101 /* sfstr* macros now use sfsetbuf() */
344887Schin 
354887Schin NoN(sfstrtmp)
364887Schin 
374887Schin #else
384887Schin 
394887Schin #if defined(__EXPORT__)
404887Schin #define extern	__EXPORT__
414887Schin #endif
424887Schin 
434887Schin /*
444887Schin  * replace buffer in string stream f for either SF_READ or SF_WRITE
454887Schin  */
464887Schin 
474887Schin extern int
484887Schin sfstrtmp(register Sfio_t* f, int mode, void* buf, size_t siz)
494887Schin {
504887Schin 	if (!(f->_flags & SF_STRING))
514887Schin 		return -1;
524887Schin 	if (f->_flags & SF_MALLOC)
534887Schin 		free(f->_data);
544887Schin 	f->_flags &= ~(SF_ERROR|SF_MALLOC);
554887Schin 	f->mode = mode;
564887Schin 	f->_next = f->_data = (unsigned char*)buf;
574887Schin 	f->_endw = f->_endr = f->_endb = f->_data + siz;
584887Schin 	f->_size = siz;
594887Schin 	return 0;
604887Schin }
614887Schin 
624887Schin #endif
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