PR/51572: calling funopen on each printw call is a tad excessive, but this
is not a reason for funopen to leak. Always call the close function since we
are indirecting through our cookie and we need to free it.

branches: 1.14.10; 1.14.12; 1.14.14;
only provide compatibility i/o functions to the ones provided by the caller.

- widen the internal read and write calls to match the syscalls
- add funopen2() which provides access to flush() and the wider calls.
- make use of the new flush call in fmemopen()

- ansify, knf.
- no functional changes

From tnozaki@: make fpos_t a complex object that keeps track of the parse
state of the stream. Change argument of the seek function to funopen() from
fpos_t to off_t. Make f{g,s}etpos() use the new fpos_t struct, while providing
backwards compatible entry points. Approved by releng@

branches: 1.10.44;
WARNS=4

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Merge the nathanw_sa branch.

branches: 1.7.12;
delint

remove obsolete register declarations

Fix RCSID's
Fix gcc warnings.
Add prototypes for functions that were declared in more than one place
to local.h or extern.h and use that instead.

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Declare rcsid strings so they are stored in text segment.

Add RCS identifiers.

branches: 1.1.1;
Initial revision