GETTYTAB(5) 1990 GETTYTAB(5) NNAAMMEE gettytab - terminal configuration data base SSYYNNOOPPSSIISS /etc/gettytab DDEESSCCRRIIPPTTIIOONN _G_e_t_t_y_t_a_b is a simplified version of the _t_e_r_m_c_a_p(5) data base used to describe terminal lines. The initial terminal login process _g_e_t_t_y(8) accesses the _g_e_t_t_y_t_a_b file each time it starts, allowing simpler reconfiguration of terminal charac- teristics. Each entry in the data base is used to describe one class of terminals. There is a default terminal class, _d_e_f_a_u_l_t, that is used to set global defaults for all other classes. (That is, the _d_e_f_a_u_l_t entry is read, then the entry for the class required is used to override particular settings.) CCAAPPAABBIILLIITTIIEESS Refer to _t_e_r_m_c_a_p(5) for a description of the file layout. The _d_e_f_a_u_l_t column below lists defaults obtained if there is no entry in the table obtained, nor one in the special _d_e_f_a_u_l_t table. NNaammee TTyyppee DDeeffaauulltt DDeessccrriippttiioonn ap bool false terminal uses any parity bd num 0 backspace delay bk str 0377 alternate end of line character (input break) cb bool false use crt backspace mode cd num 0 carriage-return delay ce bool false use crt erase algorithm ck bool false use crt kill algorithm cl str NULL screen clear sequence co bool false console - add \n after login prompt ds str ^Y delayed suspend character dx bool false set DECCTLQ ec bool false leave echo OFF ep bool false terminal uses even parity er str ^? erase character et str ^D end of text (EOF) character ev str NULL initial enviroment f0 num unused tty mode flags to write messages f1 num unused tty mode flags to read login name f2 num unused tty mode flags to leave terminal as fd num 0 form-feed (vertical motion) delay fl str ^O output flush character hc bool false do NOT hangup line on last close he str NULL hostname editing string hn str hostname hostname ht bool false terminal has real tabs ig bool false ignore garbage characters in login name Printed 7/27/90 June 1 GETTYTAB(5) 1990 GETTYTAB(5) im str NULL initial (banner) message in str ^C interrupt character is num unused input speed kl str ^U kill character lc bool false terminal has lower case lm str login: login prompt ln str ^V ``literal next'' character lo str /usr/bin/login program to exec when name obtained nd num 0 newline (line-feed) delay nl bool false terminal has (or might have) a newline character nx str default next table (for auto speed selection) op bool false terminal uses odd parity os num unused output speed pc str \0 pad character pe bool false use printer (hard copy) erase algorithm pf num 0 delay between first prompt and following flush (seconds) ps bool false line connected to a MICOM port selector qu str ^\ quit character rp str ^R line retype character rw bool false do NOT use raw for input, use cbreak sp num unused line speed (input and output) su str ^Z suspend character tc str none table continuation to num 0 timeout (seconds) tt str NULL terminal type (for enviroment) ub bool false do unbuffered output (of prompts etc) uc bool false terminal is known upper case only we str ^W word erase character xc bool false do NOT echo control chars as ^X xf str ^S XOFF (stop output) character xn str ^Q XON (start output) character If no line speed is specified, speed will not be altered from that which prevails when getty is entered. Specifying an input or output speed will override line speed for stated direction only. Terminal modes to be used for the output of the message, for input of the login name, and to leave the terminal set as upon completion, are derived from the boolean flags speci- fied. If the derivation should prove inadequate, any (or all) of these three may be overriden with one of the ff00, ff11, or ff22 numeric specifications, which can be used to specify (usually in octal, with a leading '0') the exact values of the flags. Local (new tty) flags are set in the top 16 bits of this (32 bit) value. Should _g_e_t_t_y receive a null character (presumed to indicate a line break) it will restart using the table indicated by the nnxx entry. If there is none, it will re-use its original table. Printed 7/27/90 June 2 GETTYTAB(5) 1990 GETTYTAB(5) Delays are specified in milliseconds, the nearest possible delay available in the tty driver will be used. Should greater certainty be desired, delays with values 0, 1, 2, and 3 are interpreted as choosing that particular delay algorithm from the driver. The ccll screen clear string may be preceded by a (decimal) number of milliseconds of delay required (a la termcap). This delay is simulated by repeated use of the pad character ppcc. The initial message, and login message, iimm and llmm may include the character sequence %%hh or %%tt to obtain the host- name or tty name respectively. (%%%% obtains a single '%' character.) The hostname is normally obtained from the sys- tem, but may be set by the hhnn table entry. In either case it may be edited with hhee. The hhee string is a sequence of characters, each character that is neither '@' nor '#' is copied into the final hostname. A '@' in the hhee string, causes one character from the real hostname to be copied to the final hostname. A '#' in the hhee string, causes the next character of the real hostname to be skipped. Surplus '@' and '#' characters are ignored. When getty execs the login process, given in the lloo string (usually "/usr/bin/login"), it will have set the enviroment to include the terminal type, as indicated by the tttt string (if it exists). The eevv string, can be used to enter addi- tional data into the environment. It is a list of comma separated strings, each of which will presumably be of the form _n_a_m_e=_v_a_l_u_e. If a non-zero timeout is specified, with ttoo, then getty will exit within the indicated number of seconds, either having received a login name and passed control to _l_o_g_i_n, or having received an alarm signal, and exited. This may be useful to hangup dial in lines. Output from _g_e_t_t_y is even parity unless oopp is specified. OOpp may be specified with aapp to allow any parity on input, but generate odd parity output. Note: this only applies while getty is being run, terminal driver limitations prevent a more complete implementation. _G_e_t_t_y does not check parity of input characters in _R_A_W mode. SSEEEE AALLSSOO login(1), termcap(5), getty(8). BBUUGGSS The special characters (erase, kill, etc.) are reset to sys- tem defaults by _l_o_g_i_n(1). In aallll cases, '#' or '^H' typed in a login name will be treated as an erase character, and Printed 7/27/90 June 3 GETTYTAB(5) 1990 GETTYTAB(5) '@' will be treated as a kill character. The delay stuff is a real crock. Apart form its general lack of flexibility, some of the delay algorithms are not implemented. The terminal driver should support sane delay settings. The hhee capability is stupid. _T_e_r_m_c_a_p format is horrid, something more rational should have been chosen. Printed 7/27/90 June 4