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 this notice is preserved and that due credit is given 7 * to the University of California at Berkeley. The name of the University 8 * may not be used to endorse or promote products derived from this 9 * software without specific prior written permission. This software 10 * is provided ``as is'' without express or implied warranty. 11 */ 12 13 #if defined(LIBC_SCCS) && !defined(lint) 14 static char sccsid[] = "@(#)vsprintf.c 5.1 (Berkeley) 05/24/88"; 15 #endif /* LIBC_SCCS and not lint */ 16 17 #include <stdio.h> 18 #include <varargs.h> 19 20 int 21 vsprintf(str, fmt, ap) 22 char *str, *fmt; 23 va_list ap; 24 { 25 FILE f; 26 int len; 27 28 f._flag = _IOWRT+_IOSTRG; 29 f._ptr = str; 30 f._cnt = 32767; 31 len = _doprnt(fmt, ap, &f); 32 *f._ptr = 0; 33 return (len); 34 } 35