Cosmetics.

va_{start,end} audit:
Make sure that each va_start has one and only one matching va_end,
especially in error cases.
If the va_list is used multiple times, do multiple va_starts/va_ends.
If a function

va_{start,end} audit:
Make sure that each va_start has one and only one matching va_end,
especially in error cases.
If the va_list is used multiple times, do multiple va_starts/va_ends.
If a function gets va_list as argument, don't let it use va_end (since
it's the callers responsibility).

Improved by comments from enami and christos -- thanks!

Heimdal/krb4/KAME changes already fed back, rest to follow.

Inspired by, but not not based on, OpenBSD.

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bcopy -> memcpy, bzero -> memset, bcmp -> memcmp.
Reviewed by Matt Thomas, ok'd by Tsubai Masanari.

Increase stack size.

Update some comments.

Allocate DMA-aware memory area using "dma-alloc" method and use them
for data buffer.
XXX currently only netif_put() uses this.

iMac can use ofwboot.elf now.

Ensure lowest 256MB is mapped by BAT0.

Comment out "insert root disk..." message.
Remove unnecessary video init.

Change load address of ofwboot for large (md root) kernel.

Initial import of macppc port.