#include "fmtqfn.h"#include "fmt.h"#include "auto_split.h"unsigned int fmtqfn(s,dirslash,id,flagsplit)char *s;char *dirslash;unsigned long id;int flagsplit;{ unsigned int len; unsigned int i; len = 0; i = fmt_str(s,dirslash); len += i; if (s) s += i; if (flagsplit)  {   i = fmt_ulong(s,id % auto_split); len += i; if (s) s += i;   i = fmt_str(s,"/"); len += i; if (s) s += i;  } i = fmt_ulong(s,id); len += i; if (s) s += i; if (s) *s++ = 0; ++len; return len;}