4.4BSD snapshot (revision 8.1); add 1993 to copyright

close /etc/ttys in getttynam

Add include files to get prototype declarations, and fix bugs found.

new copyright notice

string.h is ANSI C include file

p not set on long /etc/ttys lines, causing premature loop termination

handle long lines; move defines into ttyent.h; move getttynam() into
getttyent.c; make all fields null pointers if unspecified; make setttyent()
and endtttyent() return values; move field explanation

handle long lines; move defines into ttyent.h; move getttynam() into
getttyent.c; make all fields null pointers if unspecified; make setttyent()
and endtttyent() return values; move field explanations into ttys.5;
document it all. Add Berkeley specific copyright notice.

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comments now delimited, quoted strings may escape quotes, can quote
anything but flags

magic flag strings must be tokens

added LIBC_SCCS condition for sccs ids

Add copyright

added quoted fields & support for windows.

date and time created 84/04/27 10:25:32 by ralph