extern int
_stdsprintf(char* s, const char* fmt, ...)
{
va_list args;
int v;
va_start(args, fmt);
v = s ? sfvsprintf(s, SF_BUFSIZE, fmt, args) : -1;
va_end(args);
return v;
}
static void error(int level, char* fmt, ...)
{
DWORD err = GetLastError();
char* cur;
char* end;
char* s;
int n;
char buf[512];
va_list ap;
va_start(ap, fmt);
cur = buf;
end = cur + sizeof(buf) - 1;
cur += sfvsprintf(cur, end - cur, fmt, ap);
va_end(ap);
logerr(LOG_SYSTEM+level, "%s", buf);
if (!quiet)
{
if ((level & LOG_SYSTEM) && err && (int)(end - cur) > 32)
{
cur += sfsprintf(cur, end - cur, "\r\n[%lu:", err);
if (!(n = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS, 0, err, 0, cur, (int)(end - cur), 0)))
n = sfsprintf(cur, end - cur, "Unknown error code %d.\n", err);
if (n >= (int)(end - cur))
cur[n-1] = 0;
if (s = strchr(cur, '\n'))
n = (int)(s - cur);
cur += n;
if (*(cur-1) == '\r')
cur--;
if (*(cur-1) == '.')
cur--;
if (cur < end)
*cur++ = ']';
}
*cur = 0;
MessageBox(0, buf, "UWIN Setuid Service", 0x00200000L|0x00040000L|MB_OK|MB_ICONSTOP);
}
}