wolfSSH version 1.4.2

wolfSSH v1.4.2 (08/06/2019)

• GCC 8 build warning fixes
• Fix for warning with enums used with SFTP and set socket type
• Added example server with Renesas CS+ port
• Fix for initializing UserAuthData to all zeros before use
• Fix for SFTP “LS” operation when setting the default window size to 2048
• Add structure size print out option -z to example client when the macro
  WOLFSSH_SHOW_SIZES is defined
• Additional automated tests of wolfSSH_CTX_UsePrivateKey_buffer and fix for
  call when key is already loaded
• Refactoring done to internal handling of packet assembly
• Add client side public key authentication support
• Support added for global requests
• Fix for NULL dereference warning, rPad/sPad initialization and SFTP check on
  want read. Thanks to GitHub user LinuxJedi for the reports
• Addition of WS_USER_AUTH_E error returned when user authentication callback
  returns WOLFSSH_USERAUTH_REJECTED
• Remove void cast on variable not compiled in with single threaded builds