Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Switch to ANSI function prototypes in a few places.
Get rid of some unused parameter warnings.

Implement the full range of ISO9660 number conversion routines in iso.h.

MFC after: 2 weeks

- Change the f_isdir field of struct file to be a flags field and two
new flags: F_ROOTDIR and F_RR (Rock Ridge present).
- Cache the SUSP LEN_SKP parameter in struct file as well.
- If we open() '/', then force a read of the directory's contents so we
can examine the directory record of '.' to see if Rock Ridge is present.
- If Rock Ridge extensions are present, lookup Rock Ridge names in
readdir().

- Add a simple SUSP parser.
- Use the SUSP parser to detect Rock Ridge (RRIP) extensions and to look
up alternate names when opening files.

Switch to using ANSI function declarations and add missing function
prototypes. I'm tired of getting stupid bugs from changing function
parameters and not getting warnings from the compiler when I goof it up.

Add __FBSDID()s to libstand

Bail if we go beyond the directory size, not just if we hit it.
Certain ISO fs's (like the one for 4.4-RC1 disc1 on alpha)
trigger this, and we end up opening a null file name. This causes us to get
a false match for "kernel.ko" when it does not exist.

fix cd9660 to work on files larger than ISO_DEFAULT_BLOCK_SIZE and unbreak
cdboot on alphas (which has been broken since just after 4.0-RELEASE)

submitted by: jlemon

Add a readdir function to the loader fsops vector, and implement the
functionality for some of the filesystesms.

trailing white space removal.

Add two new functions cd9660_readfile() & cd9660_readdir(), which
cd9660_read() now uses to read CDROMs. With these changes FreeBSD/Alpha
can now boot from a bootable CDROM.

Submitted by: dfr

Path arguments to *_open functions should be const, but we were mangling
them.

Submitted by: write-protected text segment in BTX

This commit was generated by cvs2svn to compensate for changes in r38451,
which included commits to RCS files with non-trunk default branches.

This is libstand; a support library for standalone executables (eg. bootstrap
modules).
Obtained from: NetBSD, with some architectural changes and many additions.