1 91c13e54 2004-02-29 devnull /*
 2 91c13e54 2004-02-29 devnull  * The authors of this software are Rob Pike and Ken Thompson.
 3 91c13e54 2004-02-29 devnull  *              Copyright (c) 2002 by Lucent Technologies.
 4 91c13e54 2004-02-29 devnull  * Permission to use, copy, modify, and distribute this software for any
 5 91c13e54 2004-02-29 devnull  * purpose without fee is hereby granted, provided that this entire notice
 6 91c13e54 2004-02-29 devnull  * is included in all copies of any software which is or includes a copy
 7 91c13e54 2004-02-29 devnull  * or modification of this software and in all copies of the supporting
 8 91c13e54 2004-02-29 devnull  * documentation for such software.
 9 91c13e54 2004-02-29 devnull  * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
10 c90dd38f 2004-12-29 devnull  * WARRANTY.  IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE
11 c90dd38f 2004-12-29 devnull  * ANY REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
12 91c13e54 2004-02-29 devnull  * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
13 91c13e54 2004-02-29 devnull  */
14 91c13e54 2004-02-29 devnull #include <stdarg.h>
15 b4c842f1 2004-09-17 devnull #include <fmt.h>
16 e5aa96ac 2004-12-26 devnull #include "plan9.h"
17 e5aa96ac 2004-12-26 devnull #include "fmt.h"
18 b4c842f1 2004-09-17 devnull #include "fmtdef.h"
19 91c13e54 2004-02-29 devnull 
20 91c13e54 2004-02-29 devnull int
21 91c13e54 2004-02-29 devnull sprint(char *buf, char *fmt, ...)
22 91c13e54 2004-02-29 devnull {
23 91c13e54 2004-02-29 devnull 	int n;
24 984e3531 2004-08-22 devnull 	uint len;
25 91c13e54 2004-02-29 devnull 	va_list args;
26 91c13e54 2004-02-29 devnull 
27 984e3531 2004-08-22 devnull 	len = 1<<30;  /* big number, but sprint is deprecated anyway */
28 984e3531 2004-08-22 devnull 	/*
29 984e3531 2004-08-22 devnull 	 * on PowerPC, the stack is near the top of memory, so
30 984e3531 2004-08-22 devnull 	 * we must be sure not to overflow a 32-bit pointer.
31 984e3531 2004-08-22 devnull 	 */
32 984e3531 2004-08-22 devnull 	if(buf+len < buf)
33 984e3531 2004-08-22 devnull 		len = -(uint)buf-1;
34 984e3531 2004-08-22 devnull 
35 91c13e54 2004-02-29 devnull 	va_start(args, fmt);
36 984e3531 2004-08-22 devnull 	n = vsnprint(buf, len, fmt, args);
37 91c13e54 2004-02-29 devnull 	va_end(args);
38 91c13e54 2004-02-29 devnull 	return n;
39 91c13e54 2004-02-29 devnull }