OpenE2K/qemu-e2k
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separated readline from monitor code - added password input support - added output buffer

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1034 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2004-08-01 21:52:19 +00:00
parent 3d2cfdf169
commit 7e2515e87c
2 changed files with 529 additions and 393 deletions
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493
monitor.c
View File

@ -32,36 +32,6 @@
#define offsetof(type, field) ((size_t) &((type *)0)->field)
#endif
#define TERM_CMD_BUF_SIZE 4095
#define TERM_MAX_CMDS 64
#define NB_COMPLETIONS_MAX 256
#define IS_NORM 0
#define IS_ESC 1
#define IS_CSI 2
#define printf do_not_use_printf
static char term_cmd_buf[TERM_CMD_BUF_SIZE + 1];
static int term_cmd_buf_index;
static int term_cmd_buf_size;
static char term_last_cmd_buf[TERM_CMD_BUF_SIZE + 1];
static int term_last_cmd_buf_index;
static int term_last_cmd_buf_size;
static int term_esc_state;
static int term_esc_param;
static char *term_history[TERM_MAX_CMDS];
static int term_hist_entry;
static CharDriverState *monitor_hd;
static int nb_completions;
static int completion_index;
static char *completions[NB_COMPLETIONS_MAX];
/*
* Supported types:
*
@ -83,23 +53,52 @@ typedef struct term_cmd_t {
const char *help;
} term_cmd_t;
static CharDriverState *monitor_hd;
static term_cmd_t term_cmds[];
static term_cmd_t info_cmds[];
static void add_completion(const char *str);
static char term_outbuf[1024];
static int term_outbuf_index;
void term_printf(const char *fmt, ...)
{
char buf[4096];
va_list ap;
va_start(ap, fmt);
vsnprintf(buf, sizeof(buf), fmt, ap);
qemu_chr_write(monitor_hd, buf, strlen(buf));
va_end(ap);
}
static void monitor_start_input(void);
void term_flush(void)
{
if (term_outbuf_index > 0) {
qemu_chr_write(monitor_hd, term_outbuf, term_outbuf_index);
term_outbuf_index = 0;
}
}
/* flush at every end of line or if the buffer is full */
void term_puts(const char *str)
{
int c;
for(;;) {
c = *str++;
if (c == '\0')
break;
term_outbuf[term_outbuf_index++] = c;
if (term_outbuf_index >= sizeof(term_outbuf) ||
c == '\n')
term_flush();
}
}
void term_vprintf(const char *fmt, va_list ap)
{
char buf[4096];
vsnprintf(buf, sizeof(buf), fmt, ap);
term_puts(buf);
}
void term_printf(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
term_vprintf(fmt, ap);
va_end(ap);
}
static int compare_cmd(const char *name, const char *list)
@ -159,10 +158,11 @@ static void do_commit(void)
int i;
for (i = 0; i < MAX_DISKS; i++) {
if (bs_table[i])
if (bs_table[i]) {
bdrv_commit(bs_table[i]);
}
}
}
static void do_info(const char *item)
{
@ -215,11 +215,14 @@ static void do_info_registers(void)
static void do_info_history (void)
{
int i;
const char *str;
for (i = 0; i < TERM_MAX_CMDS; i++) {
if (term_history[i] == NULL)
i = 0;
for(;;) {
str = readline_get_history(i);
if (!str)
break;
term_printf("%d: '%s'\n", i, term_history[i]);
term_printf("%d: '%s'\n", i, str);
}
}
@ -261,6 +264,8 @@ static void do_eject(int force, const char *filename)
static void do_change(const char *device, const char *filename)
{
BlockDriverState *bs;
int i;
char password[256];
bs = bdrv_find(device);
if (!bs) {
@ -270,6 +275,15 @@ static void do_change(const char *device, const char *filename)
if (eject_device(bs, 0) < 0)
return;
bdrv_open(bs, filename, 0);
if (bdrv_is_encrypted(bs)) {
term_printf("%s is encrypted.\n", device);
for(i = 0; i < 3; i++) {
monitor_readline("Password: ", 1, password, sizeof(password));
if (bdrv_set_key(bs, password) == 0)
break;
term_printf("invalid password\n");
}
}
}
static void do_screen_dump(const char *filename)
@ -1178,7 +1192,7 @@ static int default_fmt_size = 4;
#define MAX_ARGS 16
static void term_handle_command(const char *cmdline)
static void monitor_handle_command(const char *cmdline)
{
const char *p, *pstart, *typestr;
char *q;
@ -1577,7 +1591,7 @@ static void parse_cmdline(const char *cmdline,
*pnb_args = nb_args;
}
static void find_completion(const char *cmdline)
void readline_find_completion(const char *cmdline)
{
const char *cmdname;
char *args[MAX_ARGS];
@ -1646,348 +1660,6 @@ static void find_completion(const char *cmdline)
qemu_free(args[i]);
}
static void term_show_prompt2(void)
{
term_printf("(qemu) ");
fflush(stdout);
term_last_cmd_buf_index = 0;
term_last_cmd_buf_size = 0;
term_esc_state = IS_NORM;
}
static void term_show_prompt(void)
{
term_show_prompt2();
term_cmd_buf_index = 0;
term_cmd_buf_size = 0;
}
/* update the displayed command line */
static void term_update(void)
{
int i, delta;
if (term_cmd_buf_size != term_last_cmd_buf_size ||
memcmp(term_cmd_buf, term_last_cmd_buf, term_cmd_buf_size) != 0) {
for(i = 0; i < term_last_cmd_buf_index; i++) {
term_printf("\033[D");
}
term_cmd_buf[term_cmd_buf_size] = '\0';
term_printf("%s", term_cmd_buf);
term_printf("\033[K");
memcpy(term_last_cmd_buf, term_cmd_buf, term_cmd_buf_size);
term_last_cmd_buf_size = term_cmd_buf_size;
term_last_cmd_buf_index = term_cmd_buf_size;
}
if (term_cmd_buf_index != term_last_cmd_buf_index) {
delta = term_cmd_buf_index - term_last_cmd_buf_index;
if (delta > 0) {
for(i = 0;i < delta; i++) {
term_printf("\033[C");
}
} else {
delta = -delta;
for(i = 0;i < delta; i++) {
term_printf("\033[D");
}
}
term_last_cmd_buf_index = term_cmd_buf_index;
}
term_flush();
}
static void term_insert_char(int ch)
{
if (term_cmd_buf_index < TERM_CMD_BUF_SIZE) {
memmove(term_cmd_buf + term_cmd_buf_index + 1,
term_cmd_buf + term_cmd_buf_index,
term_cmd_buf_size - term_cmd_buf_index);
term_cmd_buf[term_cmd_buf_index] = ch;
term_cmd_buf_size++;
term_cmd_buf_index++;
}
}
static void term_backward_char(void)
{
if (term_cmd_buf_index > 0) {
term_cmd_buf_index--;
}
}
static void term_forward_char(void)
{
if (term_cmd_buf_index < term_cmd_buf_size) {
term_cmd_buf_index++;
}
}
static void term_delete_char(void)
{
if (term_cmd_buf_index < term_cmd_buf_size) {
memmove(term_cmd_buf + term_cmd_buf_index,
term_cmd_buf + term_cmd_buf_index + 1,
term_cmd_buf_size - term_cmd_buf_index - 1);
term_cmd_buf_size--;
}
}
static void term_backspace(void)
{
if (term_cmd_buf_index > 0) {
term_backward_char();
term_delete_char();
}
}
static void term_bol(void)
{
term_cmd_buf_index = 0;
}
static void term_eol(void)
{
term_cmd_buf_index = term_cmd_buf_size;
}
static void term_up_char(void)
{
int idx;
if (term_hist_entry == 0)
return;
if (term_hist_entry == -1) {
/* Find latest entry */
for (idx = 0; idx < TERM_MAX_CMDS; idx++) {
if (term_history[idx] == NULL)
break;
}
term_hist_entry = idx;
}
term_hist_entry--;
if (term_hist_entry >= 0) {
pstrcpy(term_cmd_buf, sizeof(term_cmd_buf),
term_history[term_hist_entry]);
term_cmd_buf_index = term_cmd_buf_size = strlen(term_cmd_buf);
}
}
static void term_down_char(void)
{
if (term_hist_entry == TERM_MAX_CMDS - 1 || term_hist_entry == -1)
return;
if (term_history[++term_hist_entry] != NULL) {
pstrcpy(term_cmd_buf, sizeof(term_cmd_buf),
term_history[term_hist_entry]);
} else {
term_hist_entry = -1;
}
term_cmd_buf_index = term_cmd_buf_size = strlen(term_cmd_buf);
}
static void term_hist_add(const char *cmdline)
{
char *hist_entry, *new_entry;
int idx;
if (cmdline[0] == '\0')
return;
new_entry = NULL;
if (term_hist_entry != -1) {
/* We were editing an existing history entry: replace it */
hist_entry = term_history[term_hist_entry];
idx = term_hist_entry;
if (strcmp(hist_entry, cmdline) == 0) {
goto same_entry;
}
}
/* Search cmdline in history buffers */
for (idx = 0; idx < TERM_MAX_CMDS; idx++) {
hist_entry = term_history[idx];
if (hist_entry == NULL)
break;
if (strcmp(hist_entry, cmdline) == 0) {
same_entry:
new_entry = hist_entry;
/* Put this entry at the end of history */
memmove(&term_history[idx], &term_history[idx + 1],
&term_history[TERM_MAX_CMDS] - &term_history[idx + 1]);
term_history[TERM_MAX_CMDS - 1] = NULL;
for (; idx < TERM_MAX_CMDS; idx++) {
if (term_history[idx] == NULL)
break;
}
break;
}
}
if (idx == TERM_MAX_CMDS) {
/* Need to get one free slot */
free(term_history[0]);
memcpy(term_history, &term_history[1],
&term_history[TERM_MAX_CMDS] - &term_history[1]);
term_history[TERM_MAX_CMDS - 1] = NULL;
idx = TERM_MAX_CMDS - 1;
}
if (new_entry == NULL)
new_entry = strdup(cmdline);
term_history[idx] = new_entry;
term_hist_entry = -1;
}
/* completion support */
static void add_completion(const char *str)
{
if (nb_completions < NB_COMPLETIONS_MAX) {
completions[nb_completions++] = qemu_strdup(str);
}
}
static void term_completion(void)
{
int len, i, j, max_width, nb_cols;
char *cmdline;
nb_completions = 0;
cmdline = qemu_malloc(term_cmd_buf_index + 1);
if (!cmdline)
return;
memcpy(cmdline, term_cmd_buf, term_cmd_buf_index);
cmdline[term_cmd_buf_index] = '\0';
find_completion(cmdline);
qemu_free(cmdline);
/* no completion found */
if (nb_completions <= 0)
return;
if (nb_completions == 1) {
len = strlen(completions[0]);
for(i = completion_index; i < len; i++) {
term_insert_char(completions[0][i]);
}
/* extra space for next argument. XXX: make it more generic */
if (len > 0 && completions[0][len - 1] != '/')
term_insert_char(' ');
} else {
term_printf("\n");
max_width = 0;
for(i = 0; i < nb_completions; i++) {
len = strlen(completions[i]);
if (len > max_width)
max_width = len;
}
max_width += 2;
if (max_width < 10)
max_width = 10;
else if (max_width > 80)
max_width = 80;
nb_cols = 80 / max_width;
j = 0;
for(i = 0; i < nb_completions; i++) {
term_printf("%-*s", max_width, completions[i]);
if (++j == nb_cols || i == (nb_completions - 1)) {
term_printf("\n");
j = 0;
}
}
term_show_prompt2();
}
}
/* return true if command handled */
static void term_handle_byte(int ch)
{
switch(term_esc_state) {
case IS_NORM:
switch(ch) {
case 1:
term_bol();
break;
case 4:
term_delete_char();
break;
case 5:
term_eol();
break;
case 9:
term_completion();
break;
case 10:
case 13:
term_cmd_buf[term_cmd_buf_size] = '\0';
term_hist_add(term_cmd_buf);
term_printf("\n");
term_handle_command(term_cmd_buf);
term_show_prompt();
break;
case 27:
term_esc_state = IS_ESC;
break;
case 127:
case 8:
term_backspace();
break;
case 155:
term_esc_state = IS_CSI;
break;
default:
if (ch >= 32) {
term_insert_char(ch);
}
break;
}
break;
case IS_ESC:
if (ch == '[') {
term_esc_state = IS_CSI;
term_esc_param = 0;
} else {
term_esc_state = IS_NORM;
}
break;
case IS_CSI:
switch(ch) {
case 'A':
case 'F':
term_up_char();
break;
case 'B':
case 'E':
term_down_char();
break;
case 'D':
term_backward_char();
break;
case 'C':
term_forward_char();
break;
case '0' ... '9':
term_esc_param = term_esc_param * 10 + (ch - '0');
goto the_end;
case '~':
switch(term_esc_param) {
case 1:
term_bol();
break;
case 3:
term_delete_char();
break;
case 4:
term_eol();
break;
}
break;
default:
break;
}
term_esc_state = IS_NORM;
the_end:
break;
}
term_update();
}
static int term_can_read(void *opaque)
{
return 128;
@ -1997,7 +1669,20 @@ static void term_read(void *opaque, const uint8_t *buf, int size)
{
int i;
for(i = 0; i < size; i++)
term_handle_byte(buf[i]);
readline_handle_byte(buf[i]);
}
static void monitor_start_input(void);
static void monitor_handle_command1(void *opaque, const char *cmdline)
{
monitor_handle_command(cmdline);
monitor_start_input();
}
static void monitor_start_input(void)
{
readline_start("(qemu) ", 0, monitor_handle_command1, NULL);
}
void monitor_init(CharDriverState *hd, int show_banner)
@ -2006,8 +1691,34 @@ void monitor_init(CharDriverState *hd, int show_banner)
if (show_banner) {
term_printf("QEMU %s monitor - type 'help' for more information\n",
QEMU_VERSION);
term_show_prompt();
}
term_hist_entry = -1;
qemu_chr_add_read_handler(hd, term_can_read, term_read, NULL);
monitor_start_input();
}
/* XXX: use threads ? */
/* modal monitor readline */
static int monitor_readline_started;
static char *monitor_readline_buf;
static int monitor_readline_buf_size;
static void monitor_readline_cb(void *opaque, const char *input)
{
pstrcpy(monitor_readline_buf, monitor_readline_buf_size, input);
monitor_readline_started = 0;
}
void monitor_readline(const char *prompt, int is_password,
char *buf, int buf_size)
{
if (is_password) {
qemu_chr_send_event(monitor_hd, CHR_EVENT_FOCUS);
}
readline_start(prompt, is_password, monitor_readline_cb, NULL);
monitor_readline_buf = buf;
monitor_readline_buf_size = buf_size;
monitor_readline_started = 1;
while (monitor_readline_started) {
main_loop_wait(10);
}
}

425
readline.c Normal file
View File

@ -0,0 +1,425 @@
/*
* QEMU readline utility
*
* Copyright (c) 2003-2004 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "vl.h"
#define TERM_CMD_BUF_SIZE 4095
#define TERM_MAX_CMDS 64
#define NB_COMPLETIONS_MAX 256
#define IS_NORM 0
#define IS_ESC 1
#define IS_CSI 2
#define printf do_not_use_printf
static char term_cmd_buf[TERM_CMD_BUF_SIZE + 1];
static int term_cmd_buf_index;
static int term_cmd_buf_size;
static char term_last_cmd_buf[TERM_CMD_BUF_SIZE + 1];
static int term_last_cmd_buf_index;
static int term_last_cmd_buf_size;
static int term_esc_state;
static int term_esc_param;
static char *term_history[TERM_MAX_CMDS];
static int term_hist_entry = -1;
static int nb_completions;
int completion_index;
static char *completions[NB_COMPLETIONS_MAX];
static ReadLineFunc *term_readline_func;
static int term_is_password;
static char term_prompt[256];
static void *term_readline_opaque;
static void term_show_prompt2(void)
{
term_printf("%s", term_prompt);
term_flush();
term_last_cmd_buf_index = 0;
term_last_cmd_buf_size = 0;
term_esc_state = IS_NORM;
}
static void term_show_prompt(void)
{
term_show_prompt2();
term_cmd_buf_index = 0;
term_cmd_buf_size = 0;
}
/* update the displayed command line */
static void term_update(void)
{
int i, delta, len;
if (term_cmd_buf_size != term_last_cmd_buf_size ||
memcmp(term_cmd_buf, term_last_cmd_buf, term_cmd_buf_size) != 0) {
for(i = 0; i < term_last_cmd_buf_index; i++) {
term_printf("\033[D");
}
term_cmd_buf[term_cmd_buf_size] = '\0';
if (term_is_password) {
len = strlen(term_cmd_buf);
for(i = 0; i < len; i++)
term_printf("*");
} else {
term_printf("%s", term_cmd_buf);
}
term_printf("\033[K");
memcpy(term_last_cmd_buf, term_cmd_buf, term_cmd_buf_size);
term_last_cmd_buf_size = term_cmd_buf_size;
term_last_cmd_buf_index = term_cmd_buf_size;
}
if (term_cmd_buf_index != term_last_cmd_buf_index) {
delta = term_cmd_buf_index - term_last_cmd_buf_index;
if (delta > 0) {
for(i = 0;i < delta; i++) {
term_printf("\033[C");
}
} else {
delta = -delta;
for(i = 0;i < delta; i++) {
term_printf("\033[D");
}
}
term_last_cmd_buf_index = term_cmd_buf_index;
}
term_flush();
}
static void term_insert_char(int ch)
{
if (term_cmd_buf_index < TERM_CMD_BUF_SIZE) {
memmove(term_cmd_buf + term_cmd_buf_index + 1,
term_cmd_buf + term_cmd_buf_index,
term_cmd_buf_size - term_cmd_buf_index);
term_cmd_buf[term_cmd_buf_index] = ch;
term_cmd_buf_size++;
term_cmd_buf_index++;
}
}
static void term_backward_char(void)
{
if (term_cmd_buf_index > 0) {
term_cmd_buf_index--;
}
}
static void term_forward_char(void)
{
if (term_cmd_buf_index < term_cmd_buf_size) {
term_cmd_buf_index++;
}
}
static void term_delete_char(void)
{
if (term_cmd_buf_index < term_cmd_buf_size) {
memmove(term_cmd_buf + term_cmd_buf_index,
term_cmd_buf + term_cmd_buf_index + 1,
term_cmd_buf_size - term_cmd_buf_index - 1);
term_cmd_buf_size--;
}
}
static void term_backspace(void)
{
if (term_cmd_buf_index > 0) {
term_backward_char();
term_delete_char();
}
}
static void term_bol(void)
{
term_cmd_buf_index = 0;
}
static void term_eol(void)
{
term_cmd_buf_index = term_cmd_buf_size;
}
static void term_up_char(void)
{
int idx;
if (term_hist_entry == 0)
return;
if (term_hist_entry == -1) {
/* Find latest entry */
for (idx = 0; idx < TERM_MAX_CMDS; idx++) {
if (term_history[idx] == NULL)
break;
}
term_hist_entry = idx;
}
term_hist_entry--;
if (term_hist_entry >= 0) {
pstrcpy(term_cmd_buf, sizeof(term_cmd_buf),
term_history[term_hist_entry]);
term_cmd_buf_index = term_cmd_buf_size = strlen(term_cmd_buf);
}
}
static void term_down_char(void)
{
if (term_hist_entry == TERM_MAX_CMDS - 1 || term_hist_entry == -1)
return;
if (term_history[++term_hist_entry] != NULL) {
pstrcpy(term_cmd_buf, sizeof(term_cmd_buf),
term_history[term_hist_entry]);
} else {
term_hist_entry = -1;
}
term_cmd_buf_index = term_cmd_buf_size = strlen(term_cmd_buf);
}
static void term_hist_add(const char *cmdline)
{
char *hist_entry, *new_entry;
int idx;
if (cmdline[0] == '\0')
return;
new_entry = NULL;
if (term_hist_entry != -1) {
/* We were editing an existing history entry: replace it */
hist_entry = term_history[term_hist_entry];
idx = term_hist_entry;
if (strcmp(hist_entry, cmdline) == 0) {
goto same_entry;
}
}
/* Search cmdline in history buffers */
for (idx = 0; idx < TERM_MAX_CMDS; idx++) {
hist_entry = term_history[idx];
if (hist_entry == NULL)
break;
if (strcmp(hist_entry, cmdline) == 0) {
same_entry:
new_entry = hist_entry;
/* Put this entry at the end of history */
memmove(&term_history[idx], &term_history[idx + 1],
&term_history[TERM_MAX_CMDS] - &term_history[idx + 1]);
term_history[TERM_MAX_CMDS - 1] = NULL;
for (; idx < TERM_MAX_CMDS; idx++) {
if (term_history[idx] == NULL)
break;
}
break;
}
}
if (idx == TERM_MAX_CMDS) {
/* Need to get one free slot */
free(term_history[0]);
memcpy(term_history, &term_history[1],
&term_history[TERM_MAX_CMDS] - &term_history[1]);
term_history[TERM_MAX_CMDS - 1] = NULL;
idx = TERM_MAX_CMDS - 1;
}
if (new_entry == NULL)
new_entry = strdup(cmdline);
term_history[idx] = new_entry;
term_hist_entry = -1;
}
/* completion support */
void add_completion(const char *str)
{
if (nb_completions < NB_COMPLETIONS_MAX) {
completions[nb_completions++] = qemu_strdup(str);
}
}
static void term_completion(void)
{
int len, i, j, max_width, nb_cols;
char *cmdline;
nb_completions = 0;
cmdline = qemu_malloc(term_cmd_buf_index + 1);
if (!cmdline)
return;
memcpy(cmdline, term_cmd_buf, term_cmd_buf_index);
cmdline[term_cmd_buf_index] = '\0';
readline_find_completion(cmdline);
qemu_free(cmdline);
/* no completion found */
if (nb_completions <= 0)
return;
if (nb_completions == 1) {
len = strlen(completions[0]);
for(i = completion_index; i < len; i++) {
term_insert_char(completions[0][i]);
}
/* extra space for next argument. XXX: make it more generic */
if (len > 0 && completions[0][len - 1] != '/')
term_insert_char(' ');
} else {
term_printf("\n");
max_width = 0;
for(i = 0; i < nb_completions; i++) {
len = strlen(completions[i]);
if (len > max_width)
max_width = len;
}
max_width += 2;
if (max_width < 10)
max_width = 10;
else if (max_width > 80)
max_width = 80;
nb_cols = 80 / max_width;
j = 0;
for(i = 0; i < nb_completions; i++) {
term_printf("%-*s", max_width, completions[i]);
if (++j == nb_cols || i == (nb_completions - 1)) {
term_printf("\n");
j = 0;
}
}
term_show_prompt2();
}
}
/* return true if command handled */
void readline_handle_byte(int ch)
{
switch(term_esc_state) {
case IS_NORM:
switch(ch) {
case 1:
term_bol();
break;
case 4:
term_delete_char();
break;
case 5:
term_eol();
break;
case 9:
term_completion();
break;
case 10:
case 13:
term_cmd_buf[term_cmd_buf_size] = '\0';
if (!term_is_password)
term_hist_add(term_cmd_buf);
term_printf("\n");
/* NOTE: readline_start can be called here */
term_readline_func(term_readline_opaque, term_cmd_buf);
break;
case 27:
term_esc_state = IS_ESC;
break;
case 127:
case 8:
term_backspace();
break;
case 155:
term_esc_state = IS_CSI;
break;
default:
if (ch >= 32) {
term_insert_char(ch);
}
break;
}
break;
case IS_ESC:
if (ch == '[') {
term_esc_state = IS_CSI;
term_esc_param = 0;
} else {
term_esc_state = IS_NORM;
}
break;
case IS_CSI:
switch(ch) {
case 'A':
case 'F':
term_up_char();
break;
case 'B':
case 'E':
term_down_char();
break;
case 'D':
term_backward_char();
break;
case 'C':
term_forward_char();
break;
case '0' ... '9':
term_esc_param = term_esc_param * 10 + (ch - '0');
goto the_end;
case '~':
switch(term_esc_param) {
case 1:
term_bol();
break;
case 3:
term_delete_char();
break;
case 4:
term_eol();
break;
}
break;
default:
break;
}
term_esc_state = IS_NORM;
the_end:
break;
}
term_update();
}
void readline_start(const char *prompt, int is_password,
ReadLineFunc *readline_func, void *opaque)
{
pstrcpy(term_prompt, sizeof(term_prompt), prompt);
term_readline_func = readline_func;
term_readline_opaque = opaque;
term_is_password = is_password;
term_show_prompt();
}
const char *readline_get_history(unsigned int index)
{
if (index >= TERM_MAX_CMDS)
return NULL;
return term_history[index];
}