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@(#)mset.1 4.1 (Berkeley) 12/04/88

C 6 mset - retrieve ASCII to IBM 3270 keyboard map mset Mset retrieves mapping information for the ASCII keyboard to IBM 3270 terminal special functions. Normally, these mappings are found in /etc/map3270 (see map3270 (5)). This information is used by the tn3270 command (see tn3270 (1)).

Mset can be used store the mapping information in the process environment in order to avoid scanning /etc/map3270 each time tn3270 is invoked. To do this, place the following command in your .login file: set noglob; setenv \s-1MAP3270\s0 "\(gamset\(ga"; unset noglob

Mset first determines the user's terminal type from the environment variable TERM . Normally mset then uses the file /etc/map3270 to find the keyboard mapping for that terminal. However, if the environment variable MAP3270 exists and contains the entry for the specified terminal, then that definition is used. If the value of MAP3270 begins with a slash (`/') then it is assumed to be the full pathname of an alternate mapping file and that file is searched first. In any case, if the mapping for the terminal is not found in the environment, nor in an alternate map file, nor in the standard map file, then the same search is performed for an entry for a terminal type of unknown. If that search also fails, then a default mapping is used.

/etc/map3270 keyboard mapping for known terminals tn3270(1), map3270(5) If the entry for the specific terminal exceeds 1024 bytes, csh(1) will fail to set the environment variable. Mset should probably detect this case and output the path to the map3270 file instead of the terminal entry.