thanks for info on /etc/rmt on suns

[Daniel R. Levy]

Thanks to everybody who sent me info on using /etc/rmt, the remote magtape
daemon on suns.

Briefly put, TFM is FU (i.e. the manual page on rmt is ludicrously WRONG).
Spaces in the control input are never required (although space padding is
tolerated in the case of numeric parameters), and newlines are used only
to terminate parameters.  Also the "mode" in the Open command is really
just the open flags to be supplied as the second arg to the open() syscall;
it is not a true "mode" a la creat() or the optional third argument to
open().  So the documented command sequence

O /dev/rmt0 2

should be

O/dev/rmt0
2

and

R 512

is okay, but just as well put

R512

The data returned from the

S

command is machine-dependent and may not (probably won't be) valid on another
species of machine than the remote. This command also does NOT take a newline
terminator....

Oh, one other thing; /etc/rmt takes one optional (undocumented) argument
naming a file to which it will write debug output.
-- 
Daniel R. Levy             UNIX(R) mail:  att!ttbcad!levy
AT&T Bell Laboratories
5555 West Touhy Avenue     Any opinions expressed in the message above are
Skokie, Illinois  60077    mine, and not necessarily AT&T's.