dmm0t@hudson.acc.Virginia.EDU (David M. Meyer) (07/11/90)
A while back, someone mentioned a way to use zmodem over a 7-bit line. I'm running DSZ on my PC (registered version) and the latest version of rz/sz on a Sun. I can't figure out how to make this thing work. -- David M. Meyer dmm0t@virginia.edu Department of Mechanical and Aerospace Engineering University of Virginia Charlottesville, Virginia (804) 924-7926
ts@uwasa.fi (Timo Salmi LASK) (07/11/90)
In article <1990Jul10.222600.15940@murdoch.acc.Virginia.EDU> dmm0t@hudson.acc.Virginia.EDU (David M. Meyer) writes: >A while back, someone mentioned a way to use zmodem over a >7-bit line. I'm running DSZ on my PC (registered version) >and the latest version of rz/sz on a Sun. I can't figure out >how to make this thing work. The .ini files in /pc/ts/tskerm24.arc contain the necessary commands. They are for MsKermit but the idea is generally applicable. Also there is some information in /pc/ts/tspfon29.arc. Furthermore, at the Unix end of things use sz -bey for binary files and sz -aey for text files. The system should work. I have tested it succesfully many times using 7 bits even parity in a similar (almost the same) environment, that is between a Sun 4 and a PC. The packages mentioned above are available by anonymous ftp from chyde.uwasa.fi. ................................................................... Prof. Timo Salmi (Moderating at anon. ftp site 128.214.12.3) School of Business Studies, University of Vaasa, SF-65101, Finland Internet: ts@chyde.uwasa.fi Funet: gado::salmi Bitnet: salmi@finfun
mlord@bwdls58.bnr.ca (Mark Lord) (07/11/90)
In article <1990Jul10.222600.15940@murdoch.acc.Virginia.EDU> dmm0t@hudson.acc.Virginia.EDU (David M. Meyer) writes: >A while back, someone mentioned a way to use zmodem over a >7-bit line. I'm running DSZ on my PC (registered version) >and the latest version of rz/sz on a Sun. I can't figure out >how to make this thing work. From DSZ.DOC (included in shareware distribution): ZMODEM over 7 bit paths: (Not supported in DSZ.COM) A pair of ZMODEM-90 programs with 7-bit support operating over a 7 bit path should detect that fact and switch to one of two 7-bit path compatible encodings. For testing, this can be forced with a "-E" option. Default 7-bit mode is RLE compression and 8th bit quoting similar to Kermit but more efficient because not so many control characters are quoted. Use this default for text files. Rubout and all control characters can be escaped with the -e option. Individual control characters can be escaped with "zmtxesc" and "zmrxesc". Pack-7 instead of quoting is activated with the -P option. (-P has no effect on 8 bit paths.) Pack-7 packs 4 bytes into 5 printing characters. This is more efficient than quoting for files where 25% more 8th bits appear than the number of characters saved by RLE compression. (This statement applies to GIF, ARC, ZOO, and ZIP files. It may or may not apply to other binary file formats, depending on the data.) Pack-7 will match or beat standard Kermit on ZIP files, even when Kermit has use of all 8 bits. Note that the first line implies that one must use DSZ.EXE rather than DSZ.COM on the PC end of things. I have no idea whether the sz/rz actually support 7-bit transfers.. no mention of it in the man pages that accompanied them. Perhaps a quick look through the source might reveal this.. Have Fun. -- ___Mark S. Lord______________________________________________ | ..uunet!bnrgate!bmerh614!mlord | These are my opinions only.| |________________________________|____________________________|
mussar@bcars53.uucp (G. Mussar) (07/13/90)
In article <1990Jul10.222600.15940@murdoch.acc.Virginia.EDU> dmm0t@hudson.acc.Virginia.EDU (David M. Meyer) writes: >A while back, someone mentioned a way to use zmodem over a >7-bit line. I'm running DSZ on my PC (registered version) >and the latest version of rz/sz on a Sun. I can't figure out >how to make this thing work. > In general, rz/sz do not have the same functionality as registered DSZ. I asked Chuck Forsberg (the author) about whether rz/sz had/would have 7 bit support. This is his reply: Date: Thu Jul 12,1990 Msg Num: 99863 Time: 17:08:39 From: cforsberg To: gmussar Subject: 7-bit ZMODEM BIX will be implementing ZMODEM-90(Tm) for downloads. The currently distributed rzsz does not support any ZMODEM-90(Tm) extensions beyond RLE. To get Unix rz and sz programs with ZMODEM-90, one installs Unix Professional-YAM and that has hard links to rz and sz. -- ------------------------------------------------------------------------------- Gary Mussar |Bitnet: mussar@bnr.ca | Phone: (613) 763-4937 BNR Ltd. | UUCP: ..uunet!bnrgate!bcars53!mussar | FAX: (613) 763-2626