Missing strnlen() on MingW

[gvanem]

MingW doesn't have strnlen() which is needed in sniffer.c + snifftest.c. To solve it, I added this to my config.h:

    extern __inline__ size_t strnlen (const char *str, size_t maxsize)
    {
      size_t n;
      for (n = 0; n < maxsize && *str; n++, str++)
        ;
      return (n);
    }

Maybe the missing functions (strnlen, strsep) could be added to a more suitable place?

[ejohnstown]

I replaced the call to strnlen() with strlen() and did my size check separately. strnlen() isn't very portable, as you found, so we shouldn't use it.