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READMEFIRST
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1995-06-20
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This is the read me first file for the psion distribution
Please Note that this is version 3 and is a major version number change.
This means that there has been a low level protocol change and you will need
to use the new version of suncom and psion, unlike when there is a minor version
number change in which case I try to allow unsynced version numbers
to still work
Differences between version (where applicable if a release number is not
listed there was just bug fixes)
V3.22 Setup the pdebug stuff so the PDEBUG #define needs to be used to
compile the capability for generating debug logs on the psion
V3.21 Added the process list, kill protection and process kill commands
V3.20 Modified the syntax of how backup handled sun filenames
V3.19 Added backupnodo, backupask, restoreask system variables
V3.18 Added restore and irestore commands
V3.17 On detecting a file checksum error the offending file is deleted
before redoing the operation
V3.16 Fixed things so the checksum correction mechanism which can
kick in after a transfer handle an aborted transfer correctly
V3.15 Modified all the static structure allocation to be a bit more
memory safe and more flexible. Dynamic "Just Large enough"
structures are now used"
V3.14 Modified the default debug level for the -log option to
5, this makes the log output easier to handle
V3.13 Added commands to allow binary level checksums within the
file transfers. This should make things more secure as there
are now 3 checksum levels two in the protocol and one after
the file transfer. Still uses the dumb checksum code though
V3.8 Added support for saving of bad files if the file level
checksum does not compute properley
V3.7 Updated put and get cmds to also output transmision
information if the verbose variable is set
V3.4 Added two new functions to report on the transmited
and recieved good and bad blocks (transinfo) and to
reset them (transreset)
V3.1 Major rewrite of the low level protocol to implement
simple data block checksums and retransmision. Unfortunatly this
means that both suncom and psion are reved to V3 and will be
incompatable with V2. Fortunatly the low level protocol change
does not seem to have impacted anything else
V2.43 Added optional checking of checksums when transfering
files and optional retransmision if the checksums differr
V2.42 Added a very simple checksum support mechanism
V2.36 Added support for writting debug data from
suncom on the psion (if the debugging option is
compiled into the suncom executable
V2.34 The -log flag now hijacks the debugcall operation
V2.32 Added -log flag for startup, very verbose
V2.30 Added local and remote pwd capability
V2.29 Added support for local and remote cd capability
and commands
V2.21 Added incremental backup capability
V2.20 Added commands to get the file modification time
and other file attributes and to set rw or ro mode
on files
V2.18 Added backup system to do complete backups
Added command to do a recursive file listing
V2.16 Added debugbackup variable for when the
backup system is ready
V2.14 Added support for automatic file filtering on transfers
based on transfer direction and file type
V2.12 Added rmcheck variable to make the rm command
behave like the unix rm -i command
V2.11 Started realy enforcing error checking at the
function level between the sun and psion
V2.8 Added -var option to set variables at startup
V2.7 Added debugcall variable and allow printing of
internal debuging and runtime selection
V2.4 Renamed listp command to be list
V2.0 Major reworking of the way path names are handled
and transmited it's not much more sensible. Unfortunatly this broke
compatibility with version 1 of suncom and now all pscmd files will
need to be rewritten to handle the new pathname specification.
V1.26 Added which command to operate in the same way as
the c-shell which command
V1.24 Added support for the pause mode and additional
flags (-p and -r) to support this
V1.22 Version checking is now enabled
V1.21 The user must now select which variables to load from
the unix environment (except $HOME)
Added getenv comment to support uxer loading unix environment variables
V1.19 Added verbose variable
V1.18 Added rm function to remove psion files
V1.15 Added debugpath to show path searching information
V1.13 Added support to load variables from unix environment
V1.12 Added support for rc files
V1.11 Added link debugging level selection at runtime,
Added foreach command with wild card support
V1.10 Usage command now also gives argument count information
V 1.6 Help command added added
Usage command added
V 1.4 Run commands now support arguments
Source function added
V 1.2 Introduced variables