clib2 Code

- log(+/-0), logb(+/-0), log10(+/-0) now return -infinity.

- getcwd() now considers a buffer size of 0 an error, and it sets
the errno code to ERANGE if the buffer is too small.

- With Unix path semantics enabled, rename() now fails if either
the old or the new name are empty strings. Same thing for
opendir(), utime(), unlink(), chown(), link(), readlink(),
realpath(), chdir(), access(), stat(), rmdir(), lstat(),
chmod(), statfs() and open()/fopen().

- Fixed several issues with the formatted output of strftime()
for the "C" locale: "%p" could return " PM", "%c" is now
equivalent to "%a %b %e %T %Y", "%x" is equivalent to "%m/%d/%y"
and "%X" is now equivalent to "%T".

- Added the "date_test" program.

- The startup code now references the linker symbol generated for
the user-supplied main() function.

- Fixed to built properly.

- We now check if the file refers to a pipe before we make assumptions.

- Modified select() to support plain files, too. The new code now
compares the current file position against the current file size,
if that file is on a file system, or simply checks if there is
any data in the file (which works for the default PIPE: device).

- The raw file descriptor structure member fd_Position is now
always updated, regardless of whether the file supports random
access or not.

- The wildcard escape character used in __wildcard_expand_init() was
wrong. It should have been "'" but it was "`". Fixed.

- In __time_delay() the CheckIO() test was wrong and should have
tested for a request still in progress. Fixed.

- Getting ready for a new release...

- <sys/types.h> now also includes <time.h> and <stddef.h>.

- The socket/usergroup API function and data type definitions that used to
be defined in <unistd.h> have been moved into a separate header file
<sys/clib2_net.h> which, for backwards compatibility, can be include
from within <unistd.h> if the preprocessor symbol __USE_CLIB2_NETLIB
is defined early on. Eventually, <sys/clib2_net.h> should be removed
from the general header files and become a local library build header
file altogether. Note that in this case you would have to build your
own software using common TCP/IP SDK header files.