1 /* 2 * Copyright (c) 1995 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that: (1) source code distributions 7 * retain the above copyright notice and this paragraph in its entirety, (2) 8 * distributions including binary code include the above copyright notice and 9 * this paragraph in its entirety in the documentation or other materials 10 * provided with the distribution, and (3) all advertising materials mentioning 11 * features or use of this software display the following acknowledgement: 12 * ``This product includes software developed by the University of California, 13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of 14 * the University nor the names of its contributors may be used to endorse 15 * or promote products derived from this software without specific prior 16 * written permission. 17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 20 */ 21 22 #ifndef lint 23 static const char rcsid[] _U_ = 24 "@(#) $Header: /tcpdump/master/tcpdump/vfprintf.c,v 1.6 2003-11-16 09:36:45 guy Exp $ (LBL)"; 25 #endif 26 27 #ifdef HAVE_CONFIG_H 28 #include "config.h" 29 #endif 30 31 #include <sys/types.h> 32 33 #include <stdio.h> 34 #include <stdarg.h> 35 #include <stdlib.h> 36 #include <unistd.h> 37 38 #include "interface.h" 39 40 /* 41 * Stock 4.3 doesn't have vfprintf. 42 * This routine is due to Chris Torek. 43 */ 44 vfprintf(f, fmt, args) 45 FILE *f; 46 char *fmt; 47 va_list args; 48 { 49 int ret; 50 51 if ((f->_flag & _IOWRT) == 0) { 52 if (f->_flag & _IORW) 53 f->_flag |= _IOWRT; 54 else 55 return EOF; 56 } 57 ret = _doprnt(fmt, args, f); 58 return ferror(f) ? EOF : ret; 59 } 60
