back out portion of last rev that make it return the offset;
(for Sys V compat); more error checking

reorder elements in RCHECK'ed header so can properly catch free'ing a free blk
and not get segmentation fault later (applies only to debug code).
Reality treatment for comments.

back to old fseek returning -1 and 0; document the 0 for Sys V compat.

lseek doesn't mind negative offsets, read & write do;
bring write.2 up to read.2 stds.

use connect on dg sockets to allow unreachable reporting;
don't resend just because an old response came in.

add support for holding a tcp connection open

Fix for dn_find core dumping

all right, all right, I'll use calloc (using malloc/bzero screws up
libc order; ld bug?)

move dynamic allocations into findiop.c, so can do all at once

try again; can't be called from crt0 (breaks sh)

make up out minds: second arg to dn_expand is ptr, is beyond msg

outs for programs using alternae memory allocators:
call _stdio_init before main to give 20 files worth without callocs,
and provide f_prealloc to fill in everything

print case where host is zero but port is not (as in server local addresses)

touchups and consistency (making sure to make it true elsewhere
before checking this in)

Pass msglen to dn_expand

Pass msglen to dn_expand

Pass msglen to dn_expand

Add a description of descriptor sets.

Add msglen to dn_expand

Added description of sticky directories.

Check the _cnt field of the _iob struct for initialization rather than the
_base field -- this allows us to handle _iob structs that are set to _IORW
and are switching from reading to writing, as wel

Check the _cnt field of the _iob struct for initialization rather than the
_base field -- this allows us to handle _iob structs that are set to _IORW
and are switching from reading to writing, as well as new _iob structs.

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Add xns addr conversion routines, make default named, fix bug in making tags.

Routine to convert NS addresses to human readable form

This routine converts ascii to NS addresses

let's not get carried away with deletions: put back reiins