v144nsu6@ubvmsa.cc.buffalo.edu (Rett D Walters) (04/12/90)
Hello Fellow Amiga Users: Anybody have or know of a public domain zmodem protocol for VMS? I have a ymodem protocol by Chuck Forsberg, but I have no idea how to use it. Anyone have any docs for this? As another user has said previously KERMIT is getting old. Any info would be appreciated. Thanks Rett D. Walters v144nsu6@ubvmsd
sl195091@silver.ucs.indiana.edu (Andy Hartman) (04/13/90)
In article <21622@eerie.acsu.Buffalo.EDU> v144nsu6@ubvmsa.cc.buffalo.edu writes: >Hello Fellow Amiga Users: > >Anybody have or know of a public domain zmodem protocol for >VMS? I have a ymodem protocol by Chuck Forsberg, but I have no idea how to Here at IU, we tried to implement Zmodem, but the project was abandoned because of the fact that the VAX (VMS 4.5 or close :-) ) deals in 7 bits while z modem is an 8 bit protocol. If I am wrong, let me know (no flames!!!!) but I think this is the reason it wouldn't work here. Kermit does suck because it transfers at about 100 cps on a 2400b modem! I get 220 with z modem. >Thanks >Rett D. Walters >v144nsu6@ubvmsd AMH ------------------------------------------------------------- ****************************************************** * | //// "Only Amiga makes * * Andy Hartman | //// it possible. *
papa@pollux.usc.edu (Marco Papa) (04/13/90)
In article <41676@iuvax.cs.indiana.edu> sl195091@silver.ucs.indiana.edu (Andy Hartman) writes: >Here at IU, we tried to implement Zmodem, but the project was abandoned because >of the fact that the VAX (VMS 4.5 or close :-) ) deals in 7 bits while z modem >is an 8 bit protocol. If I am wrong, let me know (no flames!!!!) but I think >this is the reason it wouldn't work here. You're right: ZMODEM requires an 8-bit data path. >Kermit does suck because it transfers at about 100 cps on a 2400b modem! >I get 220 with z modem. Kermit might suck, but it is the only way to transfer binaries over 7-bit data paths (like VMS and IBM maninframes). -- Marco -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= "Xerox sues somebody for copying?" -- David Letterman -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
coburn@clo.enet.dec.com (John T. Coburn) (04/13/90)
In article <24071@usc.edu>, papa@pollux.usc.edu (Marco Papa) writes... :In article <41676@iuvax.cs.indiana.edu> sl195091@silver.ucs.indiana.edu (Andy Hartman) writes: :>Here at IU, we tried to implement Zmodem, but the project was abandoned because :>of the fact that the VAX (VMS 4.5 or close :-) ) deals in 7 bits while z modem :>is an 8 bit protocol. If I am wrong, let me know (no flames!!!!) but I think :>this is the reason it wouldn't work here. : :You're right: ZMODEM requires an 8-bit data path. : :>Kermit does suck because it transfers at about 100 cps on a 2400b modem! :>I get 220 with z modem. : :Kermit might suck, but it is the only way to transfer binaries over 7-bit :data paths (like VMS and IBM maninframes). : VMS is not limited to 7 bit serial data paths and has never been as far back as I remember. The X.25 networks and X.29 PADs may be limited but this is not a restriction imposed by VMS. :-- Marco :-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= :"Xerox sues somebody for copying?" -- David Letterman :-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= -------------------------------------------------------------------------------- John Coburn !Email: Digital Equipment Corporation ! coburn%clovax.enet.dec@decwrl.dec.com Enterprise Integration Services ! Cleveland, Ohio ! ...!decwrl!clovax.enet.dec.com!coburn ================================================================================
dbuchtal@math.lsa.umich.edu (Dave Buchthal) (04/13/90)
In article <24071@usc.edu> papa@pollux.usc.edu (Marco Papa) writes: >Kermit might suck, but it is the only way to transfer binaries over 7-bit >data paths (like VMS and IBM maninframes). > >-- Marco Also, you can use DNet to transfer binaries of a 7-bit data path to a "sufficiently" BSD Un*x box. Dave Buchthal
bigbroth@babcock.cerc.wvu.wvnet.edu (James M. Coleman) (04/15/90)
From article <10263@shlump.nac.dec.com>, by coburn@clo.enet.dec.com (John T. Coburn): > > In article <24071@usc.edu>, papa@pollux.usc.edu (Marco Papa) writes... > :In article <41676@iuvax.cs.indiana.edu> sl195091@silver.ucs.indiana.edu (Andy Hartman) writes: > :>Here at IU, we tried to implement Zmodem, but the project was abandoned because > :>of the fact that the VAX (VMS 4.5 or close :-) ) deals in 7 bits while z modem > :>is an 8 bit protocol. If I am wrong, let me know (no flames!!!!) but I think > :>this is the reason it wouldn't work here. > : > :You're right: ZMODEM requires an 8-bit data path. > VMS is not limited to 7 bit serial data paths and has never been as far > back as I remember. The X.25 networks and X.29 PADs may be limited but this is > not a restriction imposed by VMS. I believe the problem in implementing ZMODEM on VMS deals with it's recoginizing certain 8 bit strings as control sequences and interrupting the transfer, not in VMS being unable to handle 8 bit data paths. This is why Kermit uses only printable characters for file transfers and does prefixing when transfering binary files. I would think one could find out what control sequences would be a problem to transfer and write an 8 bit protocol which transfers these control sequences in a different format. This would NOT be a portible protocol and is one reason Kermit, a very portible protocol, is still widely used. Jim Coleman /*********************************************************************** * * * Sometimes I think the surest sign that intellegent life exists * * elsewhere in the universe is that none of it has tried to contact us.* * Calvin and Hobbs * * * ***********************************************************************/