sfstrtmp.c revision da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2007 AT&T Knowledge Ventures *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Knowledge Ventures *
* *
* A copy of the License is available at *
* http://www.opensource.org/licenses/cpl1.0.txt *
* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* David Korn <dgk@research.att.com> *
* Phong Vo <kpv@research.att.com> *
* *
***********************************************************************/
#pragma prototyped
/*
* Glenn Fowler
* AT&T Research
*
* sfio tmp string buffer support
*/
#include <sfio_t.h>
#include <ast.h>
#if __OBSOLETE__ >= 20070101 /* sfstr* macros now use sfsetbuf() */
NoN(sfstrtmp)
#else
#if defined(__EXPORT__)
#define extern __EXPORT__
#endif
/*
* replace buffer in string stream f for either SF_READ or SF_WRITE
*/
extern int
sfstrtmp(register Sfio_t* f, int mode, void* buf, size_t siz)
{
if (!(f->_flags & SF_STRING))
return -1;
if (f->_flags & SF_MALLOC)
free(f->_data);
f->_flags &= ~(SF_ERROR|SF_MALLOC);
f->mode = mode;
f->_next = f->_data = (unsigned char*)buf;
f->_endw = f->_endr = f->_endb = f->_data + siz;
f->_size = siz;
return 0;
}
#endif