Hi Everyone, I was looking at https://git.savannah.gnu.org/cgit/hurd/gnumach.git/tree/xen/net.c. The tolower trick of setting the 5th bit is not portable. C does not guarantee the trick.
for (number = 0, c = *cp | 0x20; ... )
As far as I know the only guarantees are:
* letters A-Z and a-z exist and that they fit within a byte
* digits 0-9 are sequential
It may be a good idea to just call tolower on *cp.
Jeff

