1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2009 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 #ifndef _USE_GNU 25 #define _USE_GNU 26 #endif 27 28 #include "stdhdr.h" 29 30 int 31 fflush(Sfio_t* f) 32 { 33 if (!f) 34 return fcloseall(); 35 36 STDIO_INT(f, "fflush", int, (Sfio_t*), (f)) 37 38 if (f->extent > 0) 39 sfseek(f, (Sfoff_t)0, SEEK_CUR|SF_PUBLIC); 40 return (sfsync(f) < 0 || sfpurge(f) < 0) ? -1 : 0; 41 } 42