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 #if !HAVE_VPRINTF && HAVE_DOPRNT 23 #include <stdio.h> 24 #include <varargs.h> 25 26 int 27 vfprintf(iop, fmt, ap) 28 FILE *iop; 29 char *fmt; 30 va_list ap; 31 { 32 int len; 33 char localbuf[BUFSIZ]; 34 35 if (iop->_flag & _IONBF) { 36 iop->_flag &= ~_IONBF; 37 iop->_ptr = iop->_base = localbuf; 38 len = _doprnt(fmt, ap, iop); 39 (void) fflush(iop); 40 iop->_flag |= _IONBF; 41 iop->_base = NULL; 42 iop->_bufsiz = 0; 43 iop->_cnt = 0; 44 } else 45 len = _doprnt(fmt, ap, iop); 46 47 return (ferror(iop) ? EOF : len); 48 } 49 #endif /* !HAVE_VPRINTF */ 50
