/* setterm.c, set terminal attributes.
*
* Copyright (C) 1990 Gordon Irlam (gordoni@cs.ua.oz.au). Conditions of use,
* modification, and redistribution are contained in the file COPYRIGHT that
* forms part of this distribution.
*
* Adaption to Linux by Peter MacDonald.
*
* Enhancements by Mika Liljeberg (liljeber@cs.Helsinki.FI)
*
*
* Syntax:
*
* setterm
* [ -term terminal_name ]
* [ -reset ]
* [ -initialize ]
* [ -cursor [on|off] ]
* [ -keyboard pc|olivetti|dutch|extended ]
* [ -repeat [on|off] ]
* [ -appcursorkeys [on|off] ]
* [ -linewrap [on|off] ]
* [ -snow [on|off] ]
* [ -softscroll [on|off] ]
* [ -defaults ]
* [ -foreground black|red|green|yellow|blue|magenta|cyan|white|default ]
* [ -background black|red|green|yellow|blue|magenta|cyan|white|default ]
* [ -ulcolor black|grey|red|green|yellow|blue|magenta|cyan|white ]
* [ -ulcolor bright red|green|yellow|blue|magenta|cyan|white ]
* [ -hbcolor black|grey|red|green|yellow|blue|magenta|cyan|white ]
* [ -hbcolor bright red|green|yellow|blue|magenta|cyan|white ]
* [ -inversescreen [on|off] ]
* [ -bold [on|off] ]
* [ -half-bright [on|off] ]
* [ -blink [on|off] ]
* [ -reverse [on|off] ]
* [ -underline [on|off] ]
* [ -store ]
* [ -clear [ all|rest ] ]
* [ -tabs [tab1 tab2 tab3 ... ] ] (tabn = 1-160)
* [ -clrtabs [ tab1 tab2 tab3 ... ] (tabn = 1-160)
* [ -regtabs [1-160] ]
* [ -blank [0-60] ]
* [ -dump [1-NR_CONS ] ]
* [ -append [1-NR_CONS ] ]
* [ -file dumpfilename ]
* [ -standout [attr] ]
* [ -msg [on|off] ]
* [ -msglevel [0-8] ]
* [ -powersave [on|off] ]
*
*
* Semantics:
*
* Setterm writes to standard output a character string that will invoke the
* specified terminal capabilities. Where possibile termcap is consulted to
* find the string to use. Some options however do not correspond to a
* termcap capability. In this case if the terminal type is "con*", or
* "linux*" the string that invokes the specified capabilities on the PC
* Linux virtual console driver is output. Options that are not implemented
* by the terminal are ignored.
*
* The following options are non-obvious.
*
* -term can be used to override the TERM environment variable.
*
* -reset displays the terminal reset string, which typically resets the
* terminal to its power on state.
*
* -initialize displays the terminal initialization string, which typically
* sets the terminal's rendering options, and other attributes to the
* default values.
*
* -default sets the terminal's rendering options to the default values.
*
* -store stores the terminal's current rendering options as the default
* values.
*/
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <termcap.h>
#include <linux/config.h>
#include <sys/time.h>
#include <unistd.h>
#include <termios.h>
#include <string.h>
/* for syslog system call */
#include <linux/unistd.h>
#include <errno.h>
_syscall3(int, syslog, int, type, char*, buf, int, len);
/* Constants. */
/* Termcap constants. */
#define TC_BUF_SIZE 1024 /* Size of termcap(3) buffer. */
#define TC_ENT_SIZE 50 /* Size of termcap(3) entry buffer. */
/* General constants. */
#define TRUE 1
#define FALSE 0
/* Keyboard types. */
#define PC 0
#define OLIVETTI 1
#define DUTCH 2
#define EXTENDED 3
/* Colors. */
#define BLACK 0
#define RED 1
#define GREEN 2
#define YELLOW 3
#define BLUE 4
#define MAGENTA 5
#define CYAN 6
#define WHITE 7
#define GREY 8
#define DEFAULT 9
/* Control sequences. */
#define ESC "\033"
#define DCS "\033P"
#define ST "\033\\"
/* Static variables. */
char tc_buf[TC_BUF_SIZE]; /* Termcap buffer. */
/* Option flags. Set if the option is to be invoked. */
int opt_term, opt_reset, opt_initialize, opt_cursor, opt_keyboard;
int opt_linewrap, opt_snow, opt_softscroll, opt_default, opt_foreground;
int opt_background, opt_bold, opt_blink, opt_reverse, opt_underline;
int opt_store, opt_clear, opt_blank, opt_snap, opt_snapfile, opt_standout;
int opt_append, opt_ulcolor, opt_hbcolor, opt_halfbright, opt_repeat;
int opt_tabs, opt_clrtabs, opt_regtabs, opt_appcursorkeys, opt_inversescreen;
int opt_msg, opt_msglevel, opt_powersave;
/* Option controls. The variable names have been contracted to ensure
* uniqueness.
*/
char *opt_te_terminal_name; /* Terminal name. */
int opt_cu_on, opt_li_on, opt_sn_on, opt_so_on, opt_bo_on, opt_hb_on, opt_bl_on;
int opt_re_on, opt_un_on, opt_rep_on, opt_appck_on, opt_invsc_on;
int opt_msg_on, opt_ps_on; /* Boolean switches. */
int opt_ke_type; /* Keyboard type. */
int opt_fo_color, opt_ba_color; /* Colors. */
int opt_ul_color, opt_hb_color;
int opt_cl_all; /* Clear all or rest. */
int opt_bl_min; /* Blank screen. */
int opt_sn_num = 0; /* Snap screen. */
int opt_st_attr;
int opt_rt_len; /* regular tab length */
int opt_tb_array[161]; /* Array for tab list */
int opt_msglevel_num;
char opt_sn_name[200] = "screen.dump";
/* Command line parsing routines.
*
* Note that it is an error for a given option to be invoked more than once.
*/
void parse_term(argc, argv, option, opt_term, bad_arg)
int argc; /* Number of arguments for this option. */
char *argv[]; /* Arguments for this option. */
int *option; /* Term flag to set. */
char **opt_term; /* Terminal name to set. */
int *bad_arg; /* Set to true if an error is detected. */
{
/* Parse a -term specification. */
if (argc != 1 || *option) *bad_arg = TRUE;
*option = TRUE;
if (argc == 1) {
*opt_term = argv[0];
}
}
void parse_none(argc, argv, option, bad_arg)
int argc; /* Number of arguments for this option. */
char *argv[]; /* Arguments for this option. */
int *option; /* Option flag to set. */
int *bad_arg; /* Set to true if an error is detected. */
{
/* Parse a parameterless specification. */
if (argc != 0 || *option) *bad_arg = TRUE;
*option = TRUE;
}
void parse_switch(argc, argv, option, opt_on, bad_arg)
int argc; /* Number of arguments for this option. */
char *argv[]; /* Arguments for this option. */
int *option; /* Option flag to set. */
int *opt_on; /* Boolean option switch to set or reset. */
int *bad_arg; /* Set to true if an error is detected. */
{
/* Parse a boolean (on/off) specification. */
if (argc > 1 || *option) *bad_arg = TRUE;
*option = TRUE;
if (argc == 1) {
if (strcmp(argv[0], "on") == 0)
*opt_on = TRUE;
else if (strcmp(argv[0], "off") == 0)
*opt_on = FALSE;
else
*bad_arg = TRUE;
} else {
*opt_on = TRUE;
}
}
#if 0
void parse_keyboard(argc, argv, option, opt_keyboard, bad_arg)
int argc; /* Number of arguments for this option. */
char *argv[]; /* Arguments for this option. */
int *option; /* Keyboard flag to set. */
int *opt_keyboard; /* Keyboard type to set. */
int *bad_arg; /* Set to true if an error is detected. */
{
/* Parse a -keyboard specification. */
if (argc != 1 || *option) *bad_arg = TRUE;
*option = TRUE;
if (argc == 1) {
if (strcmp(argv[0], "pc") == 0)
*opt_keyboard = PC;
else if (strcmp(argv[0], "olivetti") == 0)
*opt_keyboard = OLIVETTI;
else if (strcmp(argv[0], "dutch") == 0)
*opt_keyboard = DUTCH;
else if (strcmp(argv[0], "extended") == 0)
*opt_keyboard = EXTENDED;
else
*bad_arg = TRUE;
}
}
#endif
void par_color(argc, argv, option, opt_color, bad_arg)
int argc; /* Number of arguments for this option. */
char *argv[]; /* Arguments for this option. */
int *option; /* Color flag to set. */
int *opt_color; /* Color to set. */
int *bad_arg; /* Set to true if an error is detected. */
{
/* Parse a -foreground or -background specification. */
if (argc != 1 || *option) *bad_arg = TRUE;
*option = TRUE;
if (argc == 1) {
if (strcmp(argv[0], "black") == 0)
*opt_color = BLACK;
else if (strcmp(argv[0], "red") == 0)
*opt_color = RED;
else if (strcmp(argv[0], "green") == 0)
*opt_color = GREEN;
else if (strcmp(argv[0], "yellow") == 0)
*opt_color = YELLOW;
else if (strcmp(argv[0], "blue") == 0)
*opt_color = BLUE;
else if (strcmp(argv[0], "magenta") == 0)
*opt_color = MAGENTA;
else if (strcmp(argv[0], "cyan") == 0)
*opt_color = CYAN;
else if (strcmp(argv[0], "white") == 0)
*opt_color = WHITE;
else if (strcmp(argv[0], "default") == 0)
*opt_color = DEFAULT;
else if (isdigit(argv[0][0]))
*opt_color = atoi(argv[0]);
else
*bad_arg = TRUE;
if(*opt_color < 0 || *opt_color > 15)
*bad_arg = TRUE;
}
}
void par_color2(argc, argv, option, opt_color, bad_arg)
int argc; /* Number of arguments for this option. */
char *argv[]; /* Arguments for this option. */
int *option; /* Color flag to set. */
int *opt_color; /* Color to set. */
int *bad_arg; /* Set to true if an error is detected. */
{
/* Parse a -ulcolor or -hbcolor specification. */
if (!argc || argc > 2 || *option) *bad_arg = TRUE;
*option = TRUE;
*opt_color = 0;
if (argc == 2) {
if (strcmp(argv[0], "bright") == 0)
*opt_color = 8;
else {
*bad_arg = TRUE;
return;
}
}
if (argc) {
if (strcmp(argv[argc-1], "black") == 0) {
if(*opt_color)
*bad_arg = TRUE;
else
*opt_color = BLACK;
} else if (strcmp(argv[argc-1], "grey") == 0) {
if(*opt_color)
*bad_arg = TRUE;
else
*opt_color = GREY;
} else if (strcmp(argv[argc-1], "red") == 0)
*opt_color |= RED;
else if (strcmp(argv[argc-1], "green") == 0)
*opt_color |= GREEN;
else if (strcmp(argv[argc-1], "yellow") == 0)
*opt_color |= YELLOW;
else if (strcmp(argv[argc-1], "blue") == 0)
*opt_color |= BLUE;
else if (strcmp(argv[argc-1], "magenta") == 0)
*opt_color |= MAGENTA;
else if (strcmp(argv[argc-1], "cyan") == 0)
*opt_color |= CYAN;
else if (strcmp(argv[argc-1], "white") == 0)
*opt_color |= WHITE;
else if (isdigit(argv[argc-1][0]))
*opt_color = atoi(argv[argc-1]);
else
*bad_arg = TRUE;
if(*opt_color < 0 || *opt_color > 15)
*bad_arg = TRUE;
}
}
void parse_clear(argc, argv, option, opt_all, bad_arg)
int argc; /* Number of arguments for this option. */
char *argv[]; /* Arguments for this option. */
int *option; /* Clear flag to set. */
int *opt_all; /* Clear all switch to set or reset. */
int *bad_arg; /* Set to true if an error is detected. */
{
/* Parse a -clear specification. */
if (argc > 1 || *option) *bad_arg = TRUE;
*option = TRUE;
if (argc == 1) {
if (strcmp(argv[0], "all") == 0)
*opt_all = TRUE;
else if (strcmp(argv[0], "rest") == 0)
*opt_all = FALSE;
else
*bad_arg = TRUE;
} else {
*opt_all = TRUE;
}
}
void parse_blank(argc, argv, option, opt_all, bad_arg)
int argc; /* Number of arguments for this option. */
char *argv[]; /* Arguments for this option. */
int *option; /* Clear flag to set. */
int *opt_all; /* Clear all switch to set or reset. */
int *bad_arg; /* Set to true if an error is detected. */
{
/* Parse a -clear specification. */
if (argc > 1 || *option) *bad_arg = TRUE;
*option = TRUE;
if (argc == 1) {
*opt_all = atoi(argv[0]);
if ((*opt_all > 60) || (*opt_all < 0))
*bad_arg = TRUE;
} else {
*opt_all = 0;
}
}
#if 0
void parse_standout(argc, argv, option, opt_all, bad_arg)
int argc; /* Number of arguments for this option. */
char *argv[]; /* Arguments for this option. */
int *option; /* Clear flag to set. */
int *opt_all; /* Clear all switch to set or reset. */
int *bad_arg; /* Set to true if an error is detected. */
{
/* Parse a -clear specification. */
if (argc > 1 || *option) *bad_arg = TRUE;
*option = TRUE;
if (argc == 1) {
*opt_all = atoi(argv[0]);
} else {
*opt_all = -1;
}
}
#endif
void parse_msglevel(argc, argv, option, opt_all, bad_arg)
int argc; /* Number of arguments for this option. */
char *argv[]; /* Arguments for this option. */
int *option; /* Clear flag to set. */
int *opt_all; /* Clear all switch to set or reset. */
int *bad_arg; /* Set to true if an error is detected. */
{
if (argc > 1 || *option) *bad_arg = TRUE;
*option = TRUE;
if (argc == 1) {
*opt_all = atoi(argv[0]);
if (*opt_all < 0 || *opt_all > 8)
*bad_arg = TRUE;
} else {
*opt_all = -1;
}
}
void parse_snap(argc, argv, option, opt_all, bad_arg)
int argc; /* Number of arguments for this option. */
char *argv[]; /* Arguments for this option. */
int *option; /* Clear flag to set. */
int *opt_all; /* Clear all switch to set or reset. */
int *bad_arg; /* Set to true if an error is detected. */
{
/* Parse a -clear specification. */
if (argc > 1 || *option) *bad_arg = TRUE;
*option = TRUE;
if (argc == 1) {
*opt_all = atoi(argv[0]);
if ((*opt_all <= 0))
*bad_arg = TRUE;
} else {
*opt_all = 0;
}
}
void parse_snapfile(argc, argv, option, opt_all, bad_arg)
int argc; /* Number of arguments for this option. */
char *argv[]; /* Arguments for this option. */
int *option; /* Clear flag to set. */
int *opt_all; /* Clear all switch to set or reset. */
int *bad_arg; /* Set to true if an error is detected. */
{
/* Parse a -clear specification. */
if (argc != 1 || *option) *bad_arg = TRUE;
*option = TRUE;
if (argc == 1) {
strcpy((char *)opt_all, argv[0]);
}
}
void parse_tabs(argc, argv, option, tab_array, bad_arg)
int argc; /* Number of arguments for this option. */
char *argv[]; /* Arguments for this option. */
int *option; /* Clear flag to set. */
int *tab_array; /* Array of tabs */
int *bad_arg; /* Set to true if an error is detected. */
{
if (*option || argc > 160) *bad_arg = TRUE;
*option = TRUE;
tab_array[argc] = -1;
while(argc--) {
tab_array[argc] = atoi(argv[argc]);
if(tab_array[argc] < 1 || tab_array[argc] > 160) {
*bad_arg = TRUE;
return;
}
}
}
void parse_clrtabs(argc, argv, option, tab_array, bad_arg)
int argc; /* Number of arguments for this option. */
char *argv[]; /* Arguments for this option. */
int *option; /* Clear flag to set. */
int *tab_array; /* Array of tabs */
int *bad_arg; /* Set to true if an error is detected. */
{
if (*option || argc > 160) *bad_arg = TRUE;
*option = TRUE;
if(argc == 0) {
tab_array[0] = -1;
return;
}
tab_array[argc] = -1;
while(argc--) {
tab_array[argc] = atoi(argv[argc]);
if(tab_array[argc] < 1 || tab_array[argc] > 160) {
*bad_arg = TRUE;
return;
}
}
}
void parse_regtabs(argc, argv, option, opt_len, bad_arg)
int argc; /* Number of arguments for this option. */
char *argv[]; /* Arguments for this option. */
int *option; /* Clear flag to set. */
int *opt_len; /* Regular tab length. */
int *bad_arg; /* Set to true if an error is detected. */
{
if (*option || argc > 1) *bad_arg = TRUE;
*option = TRUE;
if(argc == 0) {
*opt_len = 8;
return;
}
*opt_len = atoi(argv[0]);
if(*opt_len < 1 || *opt_len > 160) {
*bad_arg = TRUE;
return;
}
}
void show_tabs()
{
int i, co = tgetnum("co");
if(co > 0) {
printf("\r ");
for(i = 10; i < co-2; i+=10)
printf("%-10d", i);
putchar('\n');
for(i = 1; i <= co; i++)
putchar(i%10+'0');
putchar('\n');
for(i = 1; i < co; i++)
printf("\tT\b");
putchar('\n');
}
}
#define STRCMP(str1,str2) strncmp(str1,str2,strlen(str1))
void parse_option(option, argc, argv, bad_arg)
char *option; /* Option with leading '-' removed. */
int argc; /* Number of arguments for this option. */
char *argv[]; /* Arguments for this option. */
int *bad_arg; /* Set to true if an error is detected. */
{
/* Parse a single specification. */
if (STRCMP(option, "term") == 0)
parse_term(argc, argv, &opt_term, &opt_te_terminal_name, bad_arg);
else if (STRCMP(option, "reset") == 0)
parse_none(argc, argv, &opt_reset, bad_arg);
else if (STRCMP(option, "initialize") == 0)
parse_none(argc, argv, &opt_initialize, bad_arg);
else if (STRCMP(option, "cursor") == 0)
parse_switch(argc, argv, &opt_cursor, &opt_cu_on, bad_arg);
#if 0
else if (STRCMP(option, "keyboard") == 0)
parse_keyboard(argc, argv, &opt_keyboard, &opt_ke_type, bad_arg);
#endif
else if (STRCMP(option, "repeat") == 0)
parse_switch(argc, argv, &opt_repeat, &opt_rep_on, bad_arg);
else if (STRCMP(option, "appcursorkeys") == 0)
parse_switch(argc, argv, &opt_appcursorkeys, &opt_appck_on, bad_arg);
else if (STRCMP(option, "linewrap") == 0)
parse_switch(argc, argv, &opt_linewrap, &opt_li_on, bad_arg);
#if 0
else if (STRCMP(option, "snow") == 0)
parse_switch(argc, argv, &opt_snow, &opt_sn_on, bad_arg);
else if (STRCMP(option, "softscroll") == 0)
parse_switch(argc, argv, &opt_softscroll, &opt_so_on, bad_arg);
#endif
else if (STRCMP(option, "default") == 0)
parse_none(argc, argv, &opt_default, bad_arg);
else if (STRCMP(option, "foreground") == 0)
par_color(argc, argv, &opt_foreground, &opt_fo_color, bad_arg);
else if (STRCMP(option, "background") == 0)
par_color(argc, argv, &opt_background, &opt_ba_color, bad_arg);
else if (STRCMP(option, "ulcolor") == 0)
par_color2(argc, argv, &opt_ulcolor, &opt_ul_color, bad_arg);
else if (STRCMP(option, "hbcolor") == 0)
par_color2(argc, argv, &opt_hbcolor, &opt_hb_color, bad_arg);
else if (STRCMP(option, "inversescreen") == 0)
parse_switch(argc, argv, &opt_inversescreen, &opt_invsc_on, bad_arg);
else if (STRCMP(option, "bold") == 0)
parse_switch(argc, argv, &opt_bold, &opt_bo_on, bad_arg);
else if (STRCMP(option, "half-bright") == 0)
parse_switch(argc, argv, &opt_halfbright, &opt_hb_on, bad_arg);
else if (STRCMP(option, "blink") == 0)
parse_switch(argc, argv, &opt_blink, &opt_bl_on, bad_arg);
else if (STRCMP(option, "reverse") == 0)
parse_switch(argc, argv, &opt_reverse, &opt_re_on, bad_arg);
else if (STRCMP(option, "underline") == 0)
parse_switch(argc, argv, &opt_underline, &opt_un_on, bad_arg);
else if (STRCMP(option, "store") == 0)
parse_none(argc, argv, &opt_store, bad_arg);
else if (STRCMP(option, "clear") == 0)
parse_clear(argc, argv, &opt_clear, &opt_cl_all, bad_arg);
else if (STRCMP(option, "tabs") == 0)
parse_tabs(argc, argv, &opt_tabs, opt_tb_array, bad_arg);
else if (STRCMP(option, "clrtabs") == 0)
parse_clrtabs(argc, argv, &opt_clrtabs, opt_tb_array, bad_arg);
else if (STRCMP(option, "regtabs") == 0)
parse_regtabs(argc, argv, &opt_regtabs, &opt_rt_len, bad_arg);
else if (STRCMP(option, "blank") == 0)
parse_blank(argc, argv, &opt_blank, &opt_bl_min, bad_arg);
else if (STRCMP(option, "dump") == 0)
parse_snap(argc, argv, &opt_snap, &opt_sn_num, bad_arg);
else if (STRCMP(option, "append") == 0)
parse_snap(argc, argv, &opt_append, &opt_sn_num, bad_arg);
else if (STRCMP(option, "file") == 0)
parse_snapfile(argc, argv, &opt_snapfile, (int *)opt_sn_name, bad_arg);
else if (STRCMP(option, "msg") == 0)
parse_switch(argc, argv, &opt_msg, &opt_msg_on, bad_arg);
else if (STRCMP(option, "msglevel") == 0)
parse_msglevel(argc, argv, &opt_msglevel, &opt_msglevel_num, bad_arg);
else if (STRCMP(option, "powersave") == 0)
parse_switch(argc, argv, &opt_powersave, &opt_ps_on, bad_arg);
#if 0
else if (STRCMP(option, "standout") == 0)
parse_standout(argc, argv, &opt_standout, &opt_st_attr, bad_arg);
#endif
else
*bad_arg = TRUE;
}
/* End of command line parsing routines. */
void usage(prog_name)
char *prog_name; /* Name of this program. */
{
/* Print error message about arguments, and the command's syntax. */
fprintf(stderr, "%s: Argument error, usage\n", prog_name);
fprintf(stderr, "\n");
fprintf(stderr, "%s\n", prog_name);
fprintf(stderr, " [ -term terminal_name ]\n");
fprintf(stderr, " [ -reset ]\n");
fprintf(stderr, " [ -initialize ]\n");
fprintf(stderr, " [ -cursor [on|off] ]\n");
#if 0
fprintf(stderr, " [ -snow [on|off] ]\n");
fprintf(stderr, " [ -softscroll [on|off] ]\n");
fprintf(stderr, " [ -keyboard pc|olivetti|dutch|extended ]\n");
#endif
fprintf(stderr, " [ -repeat [on|off] ]\n");
fprintf(stderr, " [ -appcursorkeys [on|off] ]\n");
fprintf(stderr, " [ -linewrap [on|off] ]\n");
fprintf(stderr, " [ -default ]\n");
fprintf(stderr, " [ -foreground black|blue|green|cyan");
fprintf(stderr, "|red|magenta|yellow|white|default ]\n");
fprintf(stderr, " [ -background black|blue|green|cyan");
fprintf(stderr, "|red|magenta|yellow|white|default ]\n");
fprintf(stderr, " [ -ulcolor black|grey|blue|green|cyan");
fprintf(stderr, "|red|magenta|yellow|white ]\n");
fprintf(stderr, " [ -ulcolor bright blue|green|cyan");
fprintf(stderr, "|red|magenta|yellow|white ]\n");
fprintf(stderr, " [ -hbcolor black|grey|blue|green|cyan");
fprintf(stderr, "|red|magenta|yellow|white ]\n");
fprintf(stderr, " [ -hbcolor bright blue|green|cyan");
fprintf(stderr, "|red|magenta|yellow|white ]\n");
#if 0
fprintf(stderr, " [ -standout [ attr ] ]\n");
#endif
fprintf(stderr, " [ -inversescreen [on|off] ]\n");
fprintf(stderr, " [ -bold [on|off] ]\n");
fprintf(stderr, " [ -half-bright [on|off] ]\n");
fprintf(stderr, " [ -blink [on|off] ]\n");
fprintf(stderr, " [ -reverse [on|off] ]\n");
fprintf(stderr, " [ -underline [on|off] ]\n");
fprintf(stderr, " [ -store ]\n");
fprintf(stderr, " [ -clear [all|rest] ]\n");
fprintf(stderr, " [ -tabs [ tab1 tab2 tab3 ... ] ] (tabn = 1-160)\n");
fprintf(stderr, " [ -clrtabs [ tab1 tab2 tab3 ... ] ] (tabn = 1-160)\n");
fprintf(stderr, " [ -regtabs [1-160] ]\n");
fprintf(stderr, " [ -blank [0-60] ]\n");
fprintf(stderr, " [ -dump [1-NR_CONSOLES] ]\n");
fprintf(stderr, " [ -append [1-NR_CONSOLES] ]\n");
fprintf(stderr, " [ -file dumpfilename ]\n");
fprintf(stderr, " [ -msg [on|off] ]\n");
fprintf(stderr, " [ -msglevel [0-8] ]\n");
fprintf(stderr, " [ -powersave [on|off] ]\n");
}
char tc_ent_buf[TC_ENT_SIZE]; /* Buffer for storing a termcap entry. */
char *tc_entry(name)
char *name; /* Termcap capability string to lookup. */
{
/* Return the specified termcap string, or an empty string if no such termcap
* capability exists.
*/
char *buf_ptr;
buf_ptr = tc_ent_buf;
if (tgetstr(name, &buf_ptr) == NULL) tc_ent_buf[0] = '\0';
return tc_ent_buf;
}
void perform_sequence(vcterm)
int vcterm; /* Set if terminal is a virtual console. */
{
int result;
/* Perform the selected options. */
/* -reset. */
if (opt_reset) {
printf("%s", tc_entry("rs"));
}
/* -initialize. */
if (opt_initialize) {
printf("%s", tc_entry("is"));
}
/* -cursor [on|off]. */
if (opt_cursor) {
if (opt_cu_on)
printf("%s", tc_entry("ve"));
else
printf("%s", tc_entry("vi"));
}
#if 0
/* -keyboard pc|olivetti|dutch|extended. Vc only. */
if (opt_keyboard && vcterm) {
switch (opt_ke_type) {
case PC:
printf("%s%s%s", DCS, "keyboard.pc", ST);
break;
case OLIVETTI:
printf("%s%s%s", DCS, "keyboard.olivetti", ST);
break;
case DUTCH:
printf("%s%s%s", DCS, "keyboard.dutch", ST);
break;
case EXTENDED:
printf("%s%s%s", DCS, "keyboard.extended", ST);
break;
}
}
#endif
/* -linewrap [on|off]. Vc only (vt102) */
if (opt_linewrap && vcterm) {
if (opt_li_on)
printf("\033[?7h");
else
printf("\033[?7l");
}
/* -repeat [on|off]. Vc only (vt102) */
if (opt_repeat && vcterm) {
if (opt_rep_on)
printf("\033[?8h");
else
printf("\033[?8l");
}
/* -appcursorkeys [on|off]. Vc only (vt102) */
if (opt_appcursorkeys && vcterm) {
if (opt_appck_on)
printf("\033[?1h");
else
printf("\033[?1l");
}
#if 0
/* -snow [on|off]. Vc only. */
if (opt_snow && vcterm) {
if (opt_sn_on)
printf("%s%s%s", DCS, "snow.on", ST);
else
printf("%s%s%s", DCS, "snow.off", ST);
}
/* -softscroll [on|off]. Vc only. */
if (opt_softscroll && vcterm) {
if (opt_so_on)
printf("%s%s%s", DCS, "softscroll.on", ST);
else
printf("%s%s%s", DCS, "softscroll.off", ST);
}
#endif
/* -default. Vc sets default rendition, otherwise clears all
* attributes.
*/
if (opt_default) {
if (vcterm)
printf("\033[0m");
else
printf("%s", tc_entry("me"));
}
/* -foreground black|red|green|yellow|blue|magenta|cyan|white|default.
* Vc only (ANSI).
*/
if (opt_foreground && vcterm) {
printf("%s%s%c%s", ESC, "[3", '0' + opt_fo_color, "m");
}
/* -background black|red|green|yellow|blue|magenta|cyan|white|default.
* Vc only (ANSI).
*/
if (opt_background && vcterm) {
printf("%s%s%c%s", ESC, "[4", '0' + opt_ba_color, "m");
}
/* -ulcolor black|red|green|yellow|blue|magenta|cyan|white|default.
* Vc only.
*/
if (opt_ulcolor && vcterm) {
printf("\033[1;%d]", opt_ul_color);
}
/* -hbcolor black|red|green|yellow|blue|magenta|cyan|white|default.
* Vc only.
*/
if (opt_hbcolor && vcterm) {
printf("\033[2;%d]", opt_hb_color);
}
/* -inversescreen [on|off]. Vc only (vt102).
*/
if (opt_inversescreen) {
if (vcterm)
if (opt_invsc_on)
printf("\033[?5h");
else
printf("\033[?5l");
}
/* -bold [on|off]. Vc behaves as expected, otherwise off turns off
* all attributes.
*/
if (opt_bold) {
if (opt_bo_on)
printf("%s", tc_entry("md"));
else {
if (vcterm)
printf("%s%s", ESC, "[22m");
else
printf("%s", tc_entry("me"));
}
}
/* -half-bright [on|off]. Vc behaves as expected, otherwise off turns off
* all attributes.
*/
if (opt_halfbright) {
if (opt_hb_on)
printf("%s", tc_entry("mh"));
else {
if (vcterm)
printf("%s%s", ESC, "[22m");
else
printf("%s", tc_entry("me"));
}
}
/* -blink [on|off]. Vc behaves as expected, otherwise off turns off
* all attributes.
*/
if (opt_blink) {
if (opt_bl_on)
printf("%s", tc_entry("mb"));
else {
if (vcterm)
printf("%s%s", ESC, "[25m");
else
printf("%s", tc_entry("me"));
}
}
/* -reverse [on|off]. Vc behaves as expected, otherwise off turns
* off all attributes.
*/
if (opt_reverse) {
if (opt_re_on)
printf("%s", tc_entry("mr"));
else {
if (vcterm)
printf("%s%s", ESC, "[27m");
else
printf("%s", tc_entry("me"));
}
}
/* -underline [on|off]. */
if (opt_underline) {
if (opt_un_on)
printf("%s", tc_entry("us"));
else
printf("%s", tc_entry("ue"));
}
/* -store. Vc only. */
if (opt_store && vcterm) {
printf("\033[8]");
}
/* -clear [all|rest]. */
if (opt_clear) {
if (opt_cl_all)
printf("%s", tc_entry("cl"));
else
printf("%s", tc_entry("cd"));
}
/* -tabs Vc only. */
if (opt_tabs && vcterm) {
int i;
if (opt_tb_array[0] == -1)
show_tabs();
else {
for(i=0; opt_tb_array[i] > 0; i++)
printf("\033[%dG\033H", opt_tb_array[i]);
putchar('\r');
}
}
/* -clrtabs Vc only. */
if (opt_clrtabs && vcterm) {
int i;
if (opt_tb_array[0] == -1)
printf("\033[3g");
else
for(i=0; opt_tb_array[i]; i++)
printf("\033[%dG\033[g", opt_tb_array[i]);
putchar('\r');
}
/* -regtabs Vc only. */
if (opt_regtabs && vcterm) {
int i;
printf("\033[3g\r");
for(i=opt_rt_len+1; i<=160; i+=opt_rt_len)
printf("\033[%dC\033H",opt_rt_len);
putchar('\r');
}
/* -blank [0-60]. */
if (opt_blank)
printf("\033[9;%d]", opt_bl_min);
/* -powersave [on|off] (console) */
if (opt_powersave) {
char ioctlarg[2];
ioctlarg[0] = 10; /* powersave */
ioctlarg[1] = opt_ps_on;
if (ioctl(0,TIOCLINUX,ioctlarg))
fprintf(stderr,"cannot (un)set powersave mode\n");
}
#if 0
/* -standout [num]. */
if (opt_standout)
/* nothing */;
#endif
/* -snap [1-NR_CONS]. */
if (opt_snap || opt_append) {
FILE *F;
F = fopen(opt_sn_name, opt_snap ? "w" : "a");
if (!F) {
perror(opt_sn_name);
fprintf(stderr,"setterm: can not open dump file %s for output\n",
opt_sn_name);
exit(-1);
}
screendump(opt_sn_num, F);
fclose(F);
}
/* -msg [on|off]. */
if (opt_msg && vcterm) {
if (opt_msg_on)
/* 7 -- Enable printk's to console */
result = syslog(7, NULL, 0);
else
/* 6 -- Disable printk's to console */
result = syslog(6, NULL, 0);
if (result != 0)
printf("syslog error: %s\n", strerror(result));
}
/* -msglevel [0-8] */
if (opt_msglevel && vcterm) {
/* 8 -- Set level of messages printed to console */
result = syslog(8, NULL, opt_msglevel_num);
if (result != 0)
printf("syslog error: %s\n", strerror(result));
}
}
extern char *malloc();
screendump(int vcnum, FILE *F){
#include <sys/param.h>
char infile[MAXPATHLEN];
unsigned char header[4];
unsigned int rows, cols;
int fd, i, j;
char *inbuf, *outbuf, *p, *q;
sprintf(infile, "/dev/vcsa%d", vcnum);
fd = open(infile, 0);
if (fd < 0 || read(fd, header, 4) != 4)
goto try_ioctl;
rows = header[0];
cols = header[1];
if (rows * cols == 0)
goto try_ioctl;
inbuf = malloc(rows*cols*2);
outbuf = malloc(rows*(cols+1));
if(!inbuf || !outbuf) {
fprintf(stderr, "Out of memory\n");
exit(1);
}
if (read(fd, inbuf, rows*cols*2) != rows*cols*2) {
fprintf(stderr, "Error reading %s\n", infile);
exit(1);
}
p = inbuf;
q = outbuf;
for(i=0; i<rows; i++) {
for(j=0; j<cols; j++) {
*q++ = *p;
p += 2;
}
while(j-- > 0 && q[-1] == ' ')
q--;
*q++ = '\n';
}
if (fwrite(outbuf, 1, q-outbuf, F) != q-outbuf) {
fprintf(stderr, "Error writing screendump\n");
exit(1);
}
return;
try_ioctl:
{
#define NUM_COLS 160
#define NUM_ROWS 75
char buf[NUM_COLS+1];
unsigned char screenbuf[NUM_ROWS*NUM_COLS];
screenbuf[0] = 0;
screenbuf[1] = (unsigned char) vcnum;
if (ioctl(0,TIOCLINUX,screenbuf) < 0) {
fprintf(stderr,"couldn't read %s, and cannot ioctl dump\n",
infile);
exit(1);
}
rows = screenbuf[0];
cols = screenbuf[1];
for (i=0; i<rows; i++) {
strncpy(buf, screenbuf+2+(cols*i), cols);
buf[cols] = '\0';
j = cols;
while (--j && (buf[j] == ' '))
buf[j] = '\0';
fputs(buf,F);
fputc('\n',F);
}
}
}
void main(int argc, char **argv)
{
int bad_arg = FALSE; /* Set if error in arguments. */
int arg, modifier;
char *term; /* Terminal type. */
int vcterm; /* Set if terminal is a virtual console. */
if (argc < 2) bad_arg = TRUE;
/* Parse arguments. */
for (arg = 1; arg < argc;) {
if (*argv[arg] == '-') {
/* Parse a single option. */
for (modifier = arg + 1; modifier < argc; modifier++) {
if (*argv[modifier] == '-') break;
}
parse_option(argv[arg] + 1, modifier - arg - 1,
&argv[arg + 1], &bad_arg);
arg = modifier;
} else {
bad_arg = TRUE;
arg++;
}
}
/* Display syntax message if error in arguments. */
if (bad_arg) {
usage(argv[0]);
exit(1);
}
/* Find out terminal name. */
if (opt_term) {
term = opt_te_terminal_name;
} else {
term = getenv("TERM");
if (term == NULL) {
fprintf(stderr, "%s: $TERM is not defined.\n", argv[0]);
exit(1);
}
}
/* Find termcap entry. */
if (tgetent(tc_buf, term) != 1) {
fprintf(stderr, "%s: Could not find termcap entry for %s.\n",
argv[0], term);
exit(1);
}
/* See if the terminal is a virtual console terminal. */
vcterm = (!strncmp(term, "con", 3) || !strncmp(term, "linux", 5));
/* Perform the selected options. */
perform_sequence(vcterm);
exit(0);
}
