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