#include "lib9.h"#include <Windows.h> static char	errstring[ERRMAX]; enum{	Magic = 0xffffff}; static voidwinerror(int e, char *buf, uint nerr){	int r;	char buf2[ERRMAX], *p, *q;		r = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM,		0, e, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),		buf2, sizeof(buf2), 0); 	if(r == 0)		snprint(buf2, ERRMAX, "windows error %d", e); 	q = buf2;	for(p = buf2; *p; p++) {		if(*p == '\r')			continue;		if(*p == '\n')			*q++ = ' ';		else			*q++ = *p;	}	*q = '\0';	utfecpy(buf, buf+nerr, buf2);} voidwerrstr(char *fmt, ...){	va_list arg; 	va_start(arg, fmt);	vseprint(errstring, errstring+sizeof(errstring), fmt, arg);	va_end(arg);	SetLastError(Magic);} interrstr(char *buf, uint nerr){	DWORD le; 	le = GetLastError();	if(le == Magic)		utfecpy(buf, buf+nerr, errstring);	else		winerror(le, buf, nerr);	return 1;} voidoserrstr(char *buf, uint nerr){	winerror(GetLastError(), buf, nerr);}