maride/guacamole-spice-protocol
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Implement G0/G1 switching.

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This commit is contained in:
Michael Jumper 2013-05-24 21:28:14 -07:00
parent 0f5b5d39b4
commit 43eddc14c0
2 changed files with 32 additions and 31 deletions
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1
protocols/ssh/src/terminal.c
View File

@ -54,7 +54,6 @@
#include "display.h"
#include "terminal.h"
#include "terminal_handlers.h"
#include "char_mappings.h"
void guac_terminal_reset(guac_terminal* term) {

62
protocols/ssh/src/terminal_handlers.c
View File

@ -40,6 +40,7 @@
#include "common.h"
#include "terminal.h"
#include "terminal_handlers.h"
#include "char_mappings.h"
int guac_terminal_echo(guac_terminal* term, char c) {
@ -131,6 +132,16 @@ int guac_terminal_echo(guac_terminal* term, char c) {
term->cursor_col = 0;
break;
/* SO (activates character set G1) */
case 0x0E:
term->active_char_set = 1;
break;
/* SI (activates character set G0) */
case 0x0F:
term->active_char_set = 0;
break;
/* ESC */
case 0x1B:
term->char_handler = guac_terminal_escape;
@ -195,14 +206,6 @@ int guac_terminal_escape(guac_terminal* term, char c) {
term->char_handler = guac_terminal_g1_charset;
break;
case '*':
term->char_handler = guac_terminal_g2_charset;
break;
case '+':
term->char_handler = guac_terminal_g3_charset;
break;
case ']':
term->char_handler = guac_terminal_osc;
break;
@ -311,10 +314,28 @@ int guac_terminal_escape(guac_terminal* term, char c) {
}
/**
* Given a character mapping specifier (such as B, 0, U, or K),
* returns the corresponding character mapping.
*/
static const int* __guac_terminal_get_char_mapping(char c) {
/* Translate character specifier to actual mapping */
switch (c) {
case 'B': return NULL;
case '0': return vt100_map;
case 'U': return null_map;
case 'K': return user_map;
}
/* Default to Unicode */
return NULL;
}
int guac_terminal_g0_charset(guac_terminal* term, char c) {
/* STUB */
guac_client_log_info(term->client, "Ignoring G0 charset: 0x%02x", c);
term->char_mapping[0] = __guac_terminal_get_char_mapping(c);
term->char_handler = guac_terminal_echo;
return 0;
@ -322,26 +343,7 @@ int guac_terminal_g0_charset(guac_terminal* term, char c) {
int guac_terminal_g1_charset(guac_terminal* term, char c) {
/* STUB */
guac_client_log_info(term->client, "Ignoring G1 charset: 0x%02x", c);
term->char_handler = guac_terminal_echo;
return 0;
}
int guac_terminal_g2_charset(guac_terminal* term, char c) {
/* STUB */
guac_client_log_info(term->client, "Ignoring G2 charset: 0x%02x", c);
term->char_handler = guac_terminal_echo;
return 0;
}
int guac_terminal_g3_charset(guac_terminal* term, char c) {
/* STUB */
guac_client_log_info(term->client, "Ignoring G3 charset: 0x%02x", c);
term->char_mapping[1] = __guac_terminal_get_char_mapping(c);
term->char_handler = guac_terminal_echo;
return 0;