Add stpcpy(), and actually implement syslinux_version() and
syslinux_derivative_info().

DMI code have some wrong offsets.
This patch fixes this offsets and improve the grammar.

Signed-off-by: Sebastian Herbszt <herbszt@gmx.de>

  From : Erwan Velu <erwan.velu@free.fr>

This patch fixes the pci detection stuff demo'd in pcitest.c32
- Fix a wrong type in malloc
- Incorrect use of strdup
- Replacing strncpy by strnlcpy (thx hpa)

This two fixes makes pcitest.c32 working far better, no more crash when
running it twice.

I'd like to thank Sebastian Herbszt for its reports and tests.

This patch was made for 3.62-pre16 but applies fine on 3.63-pre1.

Signed-off-by:Erwan Velu <erwan.velu@free.fr>

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This include file has been inadvertently omitted from previous
checkins.

Add zopen(), zfopen(), and zloadfile() to transparently open and
uncompress a gzip file (adding support for other formats is quite
trivial.

Once a file handle or file pointer is received, it can be treated like
any other one (fstat will report it as a socket, since the length is
unknown.)

gcc complains that fclose() is too big to be inlined with -Os, so
humour it and move fclose() out of line.

Handle unspecified file length for comboot/com32 modules; do changes
to the appropriate part of libcom32 to handle this properly.

Add macros __aligned() (which takes a byte count), and __alignas()
(which takes a type or expression whose type is used, same as sizeof).