1/*********************************************************************** 2* * 3* This software is part of the ast package * 4* Copyright (c) 1985-2011 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 30int 31fflush(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