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 #include "stdhdr.h" 25*4887Schin 26*4887Schin int 27*4887Schin vswprintf(wchar_t* s, size_t n, const wchar_t* fmt, va_list args) 28*4887Schin { 29*4887Schin Sfio_t f; 30*4887Schin int v; 31*4887Schin 32*4887Schin if (!s) 33*4887Schin return -1; 34*4887Schin 35*4887Schin /* 36*4887Schin * make a fake stream 37*4887Schin */ 38*4887Schin 39*4887Schin SFCLEAR(&f, NiL); 40*4887Schin f.flags = SF_STRING|SF_WRITE; 41*4887Schin f.bits = SF_PRIVATE; 42*4887Schin f.mode = SF_WRITE; 43*4887Schin f.size = n - 1; 44*4887Schin f.data = f.next = f.endr = (uchar*)s; 45*4887Schin f.endb = f.endw = f.data + f.size; 46*4887Schin 47*4887Schin /* 48*4887Schin * call and adjust 49*4887Schin */ 50*4887Schin 51*4887Schin v = vfwprintf(&f, fmt, args); 52*4887Schin *f.next = 0; 53*4887Schin _Sfi = f.next - f.data; 54*4887Schin return v; 55*4887Schin } 56