net_read.c (krb5_net_read):

net_read.c (krb5_net_read):
net_write.c (krb5_net_write): In case of an error, on Windows
	machines, set errno from SOCKET_ERRNO, since the interface assumes the
	error is passed back the errno global varaible.  This really needs to
	be fixed sometime...

read_msg.c: If ECONNABORTED is not defined, try using the Winsock
	version of the error code (WSAECONNABORTED).

read_pwd.c:
promptusr.c:
lock_file.c:
kuserok.c:
ktdefname.c (krb5_kt_default_name):
init_os_ctx.c (os_init_paths):
ccdefname.c:
an_to_ln.c (db_an_to_ln): Change _WINDOWS to _MSDOS, and add check for _WIN32.

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@8316 dc483132-0cff-0310-8789-dd5450dbe970