changelog

支持X/YModem和cis_b+协议的串口通讯程序

Version 4.3.2

        * Linux specific code no longer needed. Removed old Linux 
          work-arounds and just target generic POSIX platforms.

        * Merge in the change directory code (use "set dir" command).

        * Remove rzsz source code since lrzsz is now availalable.
          (ftp sunsite.unc.edu:/pub/Linux/apps/comm/lrzsz-0.12b.tar.gz)

        * Fix seg fault bugs exposed by ELF.

        * Fix problem when transmitting with Ymodem-g to systems that
          insert extranious ACK characters during initial handshake.

        * Various minor changes (e.g. replacing magic numbers with 
          symbolic constants). 
        
	* Re-order placement of some static functions to avoid forward
	  declarations.

Version 4.3.1
        
        * fixed bug exposed by GCC 2.5.8 optimization in xcterm.c:terminal()
          (need to specifically intialize register variable 'c' to '0')

        * added xmodem-g, ymodem, ymodem-g transfer protocols

        * tweaked Makefile for easier build and install

        * fixed formatting problem with xc.nro man page

        * updated man page to reflect xmodem-g, ymodem, ymodem-g

        * added ansi prototypes

        * misc. minor bug fixes