#include <u.h>#include <libc.h>#include "fmtdef.h" intsprint(char *buf, char *fmt, ...){	int n;	uint len;	va_list args; 	len = 1<<30;  /* big number, but sprint is deprecated anyway */	/*	 * on PowerPC, the stack is near the top of memory, so	 * we must be sure not to overflow a 32-bit pointer.	 */	if((uintptr)buf+len < (uintptr)buf)		len = -(uintptr)buf-1; 	va_start(args, fmt);	n = vsnprint(buf, len, fmt, args);	va_end(args);	return n;}