1 /* 2 * Copyright (c) 1988 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that the above copyright notice and this paragraph are 7 * duplicated in all such forms and that any documentation, 8 * advertising materials, and other materials related to such 9 * distribution and use acknowledge that the software was developed 10 * by the University of California, Berkeley. The name of the 11 * University may not be used to endorse or promote products derived 12 * from this software without specific prior written permission. 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 */ 17 18 #if defined(LIBC_SCCS) && !defined(lint) 19 static char sccsid[] = "@(#)vfprintf.c 5.2 (Berkeley) 6/27/88"; 20 #endif /* LIBC_SCCS and not lint */ 21 22 #include "config.h" 23 #if !HAVE_VPRINTF && HAVE_DOPRNT 24 #include <stdio.h> 25 #include <varargs.h> 26 27 int 28 vfprintf(iop, fmt, ap) 29 FILE *iop; 30 char *fmt; 31 va_list ap; 32 { 33 int len; 34 char localbuf[BUFSIZ]; 35 36 if (iop->_flag & _IONBF) { 37 iop->_flag &= ~_IONBF; 38 iop->_ptr = iop->_base = localbuf; 39 len = _doprnt(fmt, ap, iop); 40 (void) fflush(iop); 41 iop->_flag |= _IONBF; 42 iop->_base = NULL; 43 iop->_bufsiz = 0; 44 iop->_cnt = 0; 45 } else 46 len = _doprnt(fmt, ap, iop); 47 48 return (ferror(iop) ? EOF : len); 49 } 50 #endif /* !HAVE_VPRINTF */ 51
