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d684c216 | 1 | /* |
04b3ea0e | 2 | * (C) Copyright 2014-2016 Leo C. <erbl259-lmu@yahoo.de> |
35edb766 | 3 | * |
d684c216 L |
4 | * (C) Copyright 2000 |
5 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
6 | * | |
7 | * Add to readline cmdline-editing by | |
8 | * (C) Copyright 2005 | |
9 | * JinHua Luo, GuangDong Linux Center, <luo.jinhua@gd-linux.com> | |
10 | * | |
f32690e8 | 11 | * SPDX-License-Identifier: GPL-2.0 |
d684c216 L |
12 | */ |
13 | ||
8ed66016 | 14 | #include "cli_readline.h" |
d684c216 | 15 | #include "common.h" |
d684c216 L |
16 | #include <string.h> |
17 | #include <stdio.h> | |
a8b4c964 L |
18 | #include <stdlib.h> |
19 | #include <stdbool.h> | |
8506d791 | 20 | #include <ctype.h> |
d684c216 L |
21 | |
22 | #include "config.h" | |
23 | #include "con-utils.h" | |
8591c65b | 24 | #include "print-utils.h" |
d684c216 | 25 | #include "command.h" |
d684c216 | 26 | |
8506d791 L |
27 | |
28 | ||
29 | /************************************************************************************************/ | |
30 | /* TODO: | |
31 | * | |
32 | */ | |
33 | ||
34 | #define ESC 0x1b | |
35 | ||
36 | #define KEY_TAB '\t' // TAB key | |
37 | #define KEY_CR '\r' // RETURN key | |
38 | #define KEY_BACKSPACE '\b' // Backspace key | |
39 | #define KEY_ESCAPE 0x1B // ESCAPE (pressed twice) | |
40 | ||
41 | #define KEY_DOWN 0x80 // Down arrow key | |
42 | #define KEY_UP 0x81 // Up arrow key | |
43 | #define KEY_LEFT 0x82 // Left arrow key | |
44 | #define KEY_RIGHT 0x83 // Right arrow key | |
45 | #define KEY_HOME 0x84 // Home key | |
46 | #define KEY_DC 0x85 // Delete character key | |
47 | #define KEY_IC 0x86 // Ins char/toggle ins mode key | |
48 | #define KEY_NPAGE 0x87 // Next-page key | |
49 | #define KEY_PPAGE 0x88 // Previous-page key | |
50 | #define KEY_END 0x89 // End key | |
51 | #define KEY_BTAB 0x8A // Back tab key | |
52 | #define KEY_F1 0x8B // Function key F1 | |
53 | #define KEY_F(n) (KEY_F1+(n)-1) // Space for additional 12 function keys | |
54 | ||
55 | ||
56 | struct fkey_tbl_s { | |
57 | const FLASH char *sequence; /* ESC Sequence */ | |
58 | int code; /* Keycode */ | |
59 | }; | |
60 | ||
61 | //typedef const FLASH struct fkey_tbl_s fkey_tbl_t; | |
62 | ||
63 | #define FKEY_TBL_ITEM(_seq, _code) { FSTR(#_seq), _code } | |
64 | ||
65 | ||
66 | ||
67 | static const FLASH struct fkey_tbl_s fkey_table[] = { | |
68 | ||
69 | FKEY_TBL_ITEM(B, KEY_DOWN), // Down arrow key | |
70 | FKEY_TBL_ITEM(A, KEY_UP), // Up arrow key | |
71 | FKEY_TBL_ITEM(D, KEY_LEFT), // Left arrow key | |
72 | FKEY_TBL_ITEM(C, KEY_RIGHT), // Right arrow key | |
73 | FKEY_TBL_ITEM(1~, KEY_HOME), // Home key | |
74 | FKEY_TBL_ITEM(3~, KEY_DC), // Delete character key | |
75 | FKEY_TBL_ITEM(2~, KEY_IC), // Ins char/toggle ins mode key | |
76 | FKEY_TBL_ITEM(6~, KEY_NPAGE), // Next-page key | |
77 | FKEY_TBL_ITEM(5~, KEY_PPAGE), // Previous-page key | |
78 | FKEY_TBL_ITEM(4~, KEY_END), // End key | |
79 | FKEY_TBL_ITEM(Z, KEY_BTAB), // Back tab key | |
80 | /* VT400: */ | |
81 | FKEY_TBL_ITEM(11~, KEY_F(1)), // Function key F1 | |
82 | FKEY_TBL_ITEM(12~, KEY_F(2)), // Function key F2 | |
83 | FKEY_TBL_ITEM(13~, KEY_F(3)), // Function key F3 | |
84 | FKEY_TBL_ITEM(14~, KEY_F(4)), // Function key F4 | |
85 | FKEY_TBL_ITEM(15~, KEY_F(5)), // Function key F5 | |
86 | /* Linux consoe */ | |
87 | FKEY_TBL_ITEM([A, KEY_F(1)), // Function key F1 | |
88 | FKEY_TBL_ITEM([B, KEY_F(2)), // Function key F2 | |
89 | FKEY_TBL_ITEM([C, KEY_F(3)), // Function key F3 | |
90 | FKEY_TBL_ITEM([D, KEY_F(4)), // Function key F4 | |
91 | FKEY_TBL_ITEM([E, KEY_F(5)), // Function key F5 | |
92 | ||
93 | FKEY_TBL_ITEM(17~, KEY_F(6)), // Function key F6 | |
94 | FKEY_TBL_ITEM(18~, KEY_F(7)), // Function key F7 | |
95 | FKEY_TBL_ITEM(19~, KEY_F(8)), // Function key F8 | |
96 | FKEY_TBL_ITEM(20~, KEY_F(9)), // Function key F9 | |
97 | FKEY_TBL_ITEM(21~, KEY_F(10)), // Function key F10 | |
98 | FKEY_TBL_ITEM(23~, KEY_F(11)), // Function key F11 | |
99 | FKEY_TBL_ITEM(24~, KEY_F(12)), // Function key F12 | |
100 | { NULL } /* Mark end of table */ | |
101 | }; | |
102 | ||
103 | ||
104 | ||
105 | typedef enum { | |
106 | STATE_GROUND, | |
107 | STATE_ESCAPE, | |
108 | STATE_CSI_ENTRY | |
109 | } vtparse_state_t; | |
110 | ||
111 | #define CHB_SIZE 15 | |
112 | ||
113 | static | |
114 | int vt_parse (void) | |
115 | { | |
116 | static vtparse_state_t state = STATE_GROUND; | |
117 | char buf[CHB_SIZE+1]; | |
118 | uint8_t param[2]; | |
119 | uint8_t i_buf; | |
120 | uint8_t i_param; | |
121 | int ch; | |
122 | ||
123 | ||
124 | while (1) { | |
125 | ch = my_getchar(1); | |
126 | // debug_getch(state, ch); | |
127 | ||
128 | switch (state) { | |
129 | case STATE_GROUND: | |
130 | if (ch == ESC) { | |
131 | state = STATE_ESCAPE; | |
132 | continue; | |
133 | } | |
134 | if (ch == 0x7F) // BACKSPACE on VT200 sends DEL char | |
135 | ch = KEY_BACKSPACE; // map it to '\b' | |
136 | break; | |
137 | case STATE_ESCAPE: | |
138 | if (ch < 0) | |
139 | continue; | |
140 | ||
141 | if (ch == '[') { | |
142 | state = STATE_CSI_ENTRY; | |
143 | param[0] = param[1] = 0; | |
144 | i_buf = 0; | |
145 | i_param = 0; | |
146 | continue; | |
147 | } | |
148 | state = STATE_GROUND; | |
149 | break; | |
150 | case STATE_CSI_ENTRY: | |
151 | if (ch < 0) | |
152 | continue; | |
153 | ||
154 | buf[i_buf] = ch; | |
155 | if (i_buf < CHB_SIZE) | |
156 | i_buf++; | |
157 | if (ch == ';') { | |
158 | i_param++; | |
159 | continue; | |
160 | } | |
161 | if (isdigit(ch)) { | |
162 | if (i_param < 2) | |
163 | param[i_param] = param[i_param] * 10 + ch - '0'; | |
164 | continue; | |
165 | } | |
166 | if (ch >= '@' && ch <= '~' && ch != '[') { | |
167 | buf[i_buf] = '\0'; | |
168 | int_fast8_t i = 0; | |
169 | while (fkey_table[i].sequence) { | |
170 | if (! strcmp_P (buf, fkey_table[i].sequence)) { | |
171 | ch = fkey_table[i].code; | |
172 | break; | |
173 | } | |
174 | i++; | |
175 | } | |
176 | if (fkey_table[i].sequence == NULL) { | |
177 | ch = '$'; /* KEY_ESCAPE; */ | |
178 | } | |
179 | } | |
180 | state = STATE_GROUND; | |
181 | break; | |
182 | } | |
183 | break; /* while */ | |
184 | } | |
185 | ||
186 | return ch; | |
187 | } | |
188 | ||
189 | /************************************************************************************************/ | |
190 | ||
191 | ||
d684c216 L |
192 | char console_buffer[CONFIG_SYS_CBSIZE + 1]; /* console I/O buffer */ |
193 | ||
d684c216 L |
194 | /* |
195 | * cmdline-editing related codes from vivi. | |
196 | * Author: Janghoon Lyu <nandy@mizi.com> | |
197 | */ | |
198 | ||
e1a50c19 L |
199 | static void putnstr(char *str, int n) |
200 | { | |
201 | /* printf_P(PSTR("%.*s"), (int)n, str) */ | |
8591c65b | 202 | while (n-- && *str) |
e1a50c19 L |
203 | putchar(*str++); |
204 | } | |
d684c216 | 205 | |
e1a50c19 L |
206 | |
207 | #define CTL_CH(c) ((c) - 'a' + 1) | |
d684c216 | 208 | #define CTL_BACKSPACE ('\b') |
e1a50c19 L |
209 | #define DEL ((char)255) |
210 | #define DEL7 ((char)127) | |
d684c216 L |
211 | |
212 | #define getcmd_putch(ch) putchar(ch) | |
8506d791 | 213 | #define getcmd_getch() vt_parse() |
d684c216 L |
214 | #define getcmd_cbeep() getcmd_putch('\a') |
215 | ||
d684c216 | 216 | |
db6a28d8 L |
217 | struct hist_node_s { |
218 | struct hist_node_s *next; | |
219 | char line[]; | |
220 | }; | |
221 | typedef struct hist_node_s hist_node; | |
222 | ||
d684c216 | 223 | |
db6a28d8 L |
224 | static hist_node *hist_head; |
225 | static hist_node *hist_cur; | |
d684c216 | 226 | |
db6a28d8 | 227 | static hist_node *hist_search_node(char *line) |
d684c216 | 228 | { |
db6a28d8 | 229 | hist_node *p = hist_head; |
d684c216 | 230 | |
db6a28d8 L |
231 | while (p && strcmp(p->line, line)) |
232 | p = p->next; | |
233 | return p; | |
234 | } | |
235 | ||
236 | #if 0 | |
237 | static hist_node *hist_insert(char *line) | |
238 | { | |
239 | hist_node *p = (hist_node *) malloc(sizeof (hist_node) + strlen(line) + 1); | |
240 | ||
241 | if (p) { | |
242 | strcpy(p->line, line); | |
243 | p->next = hist_head; | |
244 | hist_head = p; | |
a8b4c964 | 245 | } |
db6a28d8 L |
246 | return p; |
247 | } | |
248 | #endif | |
249 | ||
250 | static hist_node *hist_new(char *line) | |
251 | { | |
252 | hist_node *p = (hist_node *) malloc(sizeof (hist_node) + strlen(line) + 1); | |
d684c216 | 253 | |
a8b4c964 | 254 | if (p) { |
db6a28d8 L |
255 | strcpy(p->line, line); |
256 | p->next = NULL; | |
257 | } | |
258 | return p; | |
259 | } | |
d684c216 | 260 | |
db6a28d8 L |
261 | static hist_node *hist_delete(void) |
262 | { | |
263 | hist_node *p = NULL; | |
264 | hist_node *q = hist_head; | |
a8b4c964 | 265 | |
db6a28d8 L |
266 | if (q) { |
267 | while(q->next) { | |
268 | p = q; | |
269 | q = q->next; | |
270 | } | |
271 | free(q); | |
272 | if (p) | |
273 | p->next = NULL; | |
a8b4c964 | 274 | } |
db6a28d8 | 275 | return p; |
d684c216 L |
276 | } |
277 | ||
db6a28d8 | 278 | static hist_node *hist_unlink(hist_node *pos) |
d684c216 | 279 | { |
db6a28d8 L |
280 | hist_node *p = NULL; |
281 | hist_node *q = hist_head; | |
d684c216 | 282 | |
db6a28d8 L |
283 | while(q && q != pos) { |
284 | p = q; | |
285 | q = q->next; | |
286 | } | |
287 | if (q) { | |
288 | if (p) | |
289 | p->next = q->next; | |
290 | else | |
291 | hist_head = q->next; | |
292 | q->next = NULL; | |
293 | } | |
294 | return q; | |
295 | } | |
d684c216 | 296 | |
db6a28d8 L |
297 | static uint_fast8_t hist_count(void) |
298 | { | |
299 | hist_node *p = hist_head; | |
300 | uint_fast8_t n = 0; | |
d684c216 | 301 | |
db6a28d8 L |
302 | while (p) { |
303 | ++n; | |
304 | p = p->next; | |
d684c216 | 305 | } |
db6a28d8 L |
306 | return n; |
307 | } | |
d684c216 | 308 | |
db6a28d8 L |
309 | static hist_node *cread_add_to_hist(char *line) |
310 | { | |
311 | hist_node * p; | |
312 | ||
313 | p = hist_search_node(line); | |
314 | if (p) | |
315 | hist_unlink(p); | |
316 | else | |
317 | p = hist_new(line); | |
318 | ||
319 | if (p) { | |
320 | p->next = hist_head; | |
321 | hist_head = p; | |
322 | } | |
323 | ||
324 | if (hist_count() > CONFIG_SYS_HIST_MAX) | |
325 | hist_delete(); | |
326 | return p; | |
d684c216 L |
327 | } |
328 | ||
db6a28d8 | 329 | static char *hist_prev(void) |
d684c216 | 330 | { |
db6a28d8 | 331 | hist_node *p = hist_cur; |
d684c216 | 332 | |
db6a28d8 | 333 | if (p == NULL) |
d684c216 L |
334 | return NULL; |
335 | ||
db6a28d8 | 336 | hist_cur = hist_cur->next; |
d684c216 | 337 | |
db6a28d8 L |
338 | return p->line; |
339 | } | |
d684c216 | 340 | |
db6a28d8 L |
341 | static char *hist_next(void) |
342 | { | |
343 | hist_node *p = NULL; | |
344 | hist_node *q = hist_head; | |
345 | ||
346 | if(q == hist_cur) | |
347 | return NULL; | |
348 | ||
349 | while(q->next != hist_cur) { | |
350 | p = q; | |
351 | q = q->next; | |
352 | } | |
353 | hist_cur = q; | |
d684c216 | 354 | |
db6a28d8 | 355 | return p ? p->line : ""; |
d684c216 L |
356 | } |
357 | ||
d684c216 | 358 | |
e1a50c19 L |
359 | #define BEGINNING_OF_LINE() { \ |
360 | while (num) { \ | |
361 | getcmd_putch(CTL_BACKSPACE); \ | |
362 | num--; \ | |
363 | } \ | |
d684c216 L |
364 | } |
365 | ||
e1a50c19 L |
366 | #define ERASE_TO_EOL() { \ |
367 | if (num < eol_num) { \ | |
368 | /* printf_P(PSTR("%*S"), (int)(eol_num - num), PSTR("")); */ \ | |
369 | print_blanks(eol_num - num); \ | |
370 | do { \ | |
371 | getcmd_putch(CTL_BACKSPACE); \ | |
372 | } while (--eol_num > num); \ | |
373 | } \ | |
d684c216 L |
374 | } |
375 | ||
e1a50c19 L |
376 | #define REFRESH_TO_EOL() { \ |
377 | if (num < eol_num) { \ | |
378 | wlen = eol_num - num; \ | |
379 | putnstr(buf + num, wlen); \ | |
380 | num = eol_num; \ | |
381 | } \ | |
d684c216 L |
382 | } |
383 | ||
a8b4c964 L |
384 | static void cread_add_char(char ichar, bool insert, uint_fast8_t *num, |
385 | uint_fast8_t *eol_num, char *buf, uint_fast8_t len) | |
d684c216 | 386 | { |
a8b4c964 | 387 | uint_fast8_t wlen; |
d684c216 L |
388 | |
389 | /* room ??? */ | |
390 | if (insert || *num == *eol_num) { | |
391 | if (*eol_num > len - 1) { | |
392 | getcmd_cbeep(); | |
393 | return; | |
394 | } | |
395 | (*eol_num)++; | |
396 | } | |
397 | ||
398 | if (insert) { | |
399 | wlen = *eol_num - *num; | |
400 | if (wlen > 1) | |
401 | memmove(&buf[*num+1], &buf[*num], wlen-1); | |
402 | ||
403 | buf[*num] = ichar; | |
404 | putnstr(buf + *num, wlen); | |
405 | (*num)++; | |
406 | while (--wlen) | |
407 | getcmd_putch(CTL_BACKSPACE); | |
408 | } else { | |
409 | /* echo the character */ | |
410 | wlen = 1; | |
411 | buf[*num] = ichar; | |
412 | putnstr(buf + *num, wlen); | |
413 | (*num)++; | |
414 | } | |
415 | } | |
416 | ||
a8b4c964 L |
417 | static void cread_add_str(char *str, int strsize, bool insert, |
418 | uint_fast8_t *num, uint_fast8_t *eol_num, | |
419 | char *buf, uint_fast8_t len) | |
d684c216 L |
420 | { |
421 | while (strsize--) { | |
422 | cread_add_char(*str, insert, num, eol_num, buf, len); | |
423 | str++; | |
424 | } | |
425 | } | |
426 | ||
8ed66016 L |
427 | static int cread_line(const FLASH char *const prompt, char *buf, |
428 | uint_fast8_t *len, bool enable_history) | |
d684c216 | 429 | { |
a8b4c964 L |
430 | uint_fast8_t num = 0; |
431 | uint_fast8_t eol_num = 0; | |
432 | uint_fast8_t wlen; | |
8506d791 | 433 | int ichar; |
a8b4c964 | 434 | bool insert = 1; |
d684c216 L |
435 | int init_len = strlen(buf); |
436 | ||
437 | (void) prompt; | |
438 | ||
439 | if (init_len) | |
440 | cread_add_str(buf, init_len, 1, &num, &eol_num, buf, *len); | |
441 | ||
442 | while (1) { | |
443 | ichar = getcmd_getch(); | |
444 | ||
445 | if ((ichar == '\n') || (ichar == '\r')) { | |
446 | putchar('\n'); | |
447 | break; | |
448 | } | |
449 | ||
d684c216 L |
450 | |
451 | switch (ichar) { | |
d684c216 | 452 | |
8506d791 | 453 | case KEY_HOME: |
d684c216 L |
454 | case CTL_CH('a'): |
455 | BEGINNING_OF_LINE(); | |
456 | break; | |
a8b4c964 L |
457 | case CTL_CH('c'): /* ^C - break */ |
458 | *buf = '\0'; /* discard input */ | |
d684c216 | 459 | return -1; |
8506d791 | 460 | case KEY_RIGHT: |
a8b4c964 | 461 | case CTL_CH('f'): /* forward-char */ |
d684c216 L |
462 | if (num < eol_num) { |
463 | getcmd_putch(buf[num]); | |
464 | num++; | |
465 | } | |
466 | break; | |
8506d791 | 467 | case KEY_LEFT: |
a8b4c964 | 468 | case CTL_CH('b'): /* backward-char */ |
d684c216 L |
469 | if (num) { |
470 | getcmd_putch(CTL_BACKSPACE); | |
471 | num--; | |
472 | } | |
473 | break; | |
8506d791 | 474 | case KEY_DC: |
a8b4c964 | 475 | case CTL_CH('d'): /* delete-char */ |
d684c216 L |
476 | if (num < eol_num) { |
477 | wlen = eol_num - num - 1; | |
478 | if (wlen) { | |
479 | memmove(&buf[num], &buf[num+1], wlen); | |
480 | putnstr(buf + num, wlen); | |
481 | } | |
482 | ||
483 | getcmd_putch(' '); | |
484 | do { | |
485 | getcmd_putch(CTL_BACKSPACE); | |
486 | } while (wlen--); | |
487 | eol_num--; | |
488 | } | |
489 | break; | |
a8b4c964 | 490 | case CTL_CH('k'): /* kill-line */ |
d684c216 L |
491 | ERASE_TO_EOL(); |
492 | break; | |
ed7d7fd3 | 493 | case KEY_END: |
d684c216 L |
494 | case CTL_CH('e'): |
495 | REFRESH_TO_EOL(); | |
496 | break; | |
8506d791 | 497 | case KEY_IC: |
d684c216 L |
498 | case CTL_CH('o'): |
499 | insert = !insert; | |
500 | break; | |
501 | case CTL_CH('x'): | |
a8b4c964 | 502 | case CTL_CH('u'): /* kill-whole-line */ |
d684c216 L |
503 | BEGINNING_OF_LINE(); |
504 | ERASE_TO_EOL(); | |
505 | break; | |
506 | case DEL: | |
507 | case DEL7: | |
a8b4c964 | 508 | case 8: /* backward-delete-char */ |
d684c216 L |
509 | if (num) { |
510 | wlen = eol_num - num; | |
511 | num--; | |
512 | memmove(&buf[num], &buf[num+1], wlen); | |
513 | getcmd_putch(CTL_BACKSPACE); | |
514 | putnstr(buf + num, wlen); | |
515 | getcmd_putch(' '); | |
516 | do { | |
517 | getcmd_putch(CTL_BACKSPACE); | |
518 | } while (wlen--); | |
519 | eol_num--; | |
520 | } | |
521 | break; | |
8506d791 | 522 | case KEY_UP: |
a8b4c964 | 523 | case CTL_CH('p'): /* previous-history */ |
8506d791 | 524 | case KEY_DOWN: |
a8b4c964 | 525 | case CTL_CH('n'): /* next-history */ |
8ed66016 L |
526 | if (enable_history) { |
527 | char *hline; | |
528 | ||
529 | if (ichar == CTL_CH('p') || ichar == KEY_UP) | |
530 | hline = hist_prev(); | |
531 | else | |
532 | hline = hist_next(); | |
533 | ||
534 | if (hline) { | |
535 | /* nuke the current line */ | |
536 | /* first, go home */ | |
537 | BEGINNING_OF_LINE(); | |
538 | ||
539 | /* erase to end of line */ | |
540 | ERASE_TO_EOL(); | |
541 | ||
542 | /* copy new line into place and display */ | |
543 | strcpy(buf, hline); | |
544 | eol_num = strlen(buf); | |
545 | REFRESH_TO_EOL(); | |
546 | } else { | |
547 | getcmd_cbeep(); | |
548 | } | |
549 | } else { | |
d684c216 | 550 | getcmd_cbeep(); |
d684c216 | 551 | } |
8ed66016 | 552 | break; |
d684c216 L |
553 | #ifdef CONFIG_AUTO_COMPLETE |
554 | case '\t': { | |
555 | int num2, col; | |
556 | ||
557 | /* do not autocomplete when in the middle */ | |
558 | if (num < eol_num) { | |
559 | getcmd_cbeep(); | |
560 | break; | |
561 | } | |
562 | ||
563 | buf[num] = '\0'; | |
564 | col = strlen_P(prompt) + eol_num; | |
565 | num2 = num; | |
566 | if (cmd_auto_complete(prompt, buf, &num2, &col)) { | |
567 | col = num2 - num; | |
568 | num += col; | |
569 | eol_num += col; | |
570 | } | |
571 | break; | |
572 | } | |
573 | #endif | |
574 | default: | |
8506d791 L |
575 | if (isprint(ichar)) |
576 | cread_add_char(ichar, insert, &num, &eol_num, buf, | |
577 | *len); | |
d684c216 L |
578 | break; |
579 | } | |
580 | } | |
581 | *len = eol_num; | |
582 | buf[eol_num] = '\0'; /* lose the newline */ | |
583 | ||
8ed66016 L |
584 | if (enable_history) { |
585 | if (buf[0]) | |
db6a28d8 | 586 | hist_cur = cread_add_to_hist(buf); |
8ed66016 | 587 | } |
d684c216 L |
588 | return 0; |
589 | } | |
590 | ||
d684c216 L |
591 | /****************************************************************************/ |
592 | ||
8ed66016 L |
593 | static int cli_readline_into_buffer(const FLASH char *const prompt, |
594 | char *buffer, bool enable_history) | |
d684c216 L |
595 | { |
596 | char *p = buffer; | |
a8b4c964 | 597 | uint_fast8_t len = CONFIG_SYS_CBSIZE; |
d684c216 | 598 | int rc; |
d684c216 L |
599 | |
600 | if (prompt) | |
601 | my_puts_P(prompt); | |
602 | ||
8ed66016 | 603 | rc = cread_line(prompt, p, &len, enable_history); |
d684c216 | 604 | return rc < 0 ? rc : (int) len; |
d684c216 L |
605 | } |
606 | ||
8ed66016 | 607 | int cli_readline(const FLASH char *const prompt, bool enable_history) |
d684c216 L |
608 | { |
609 | /* | |
610 | * If console_buffer isn't 0-length the user will be prompted to modify | |
611 | * it instead of entering it from scratch as desired. | |
612 | */ | |
613 | console_buffer[0] = '\0'; | |
614 | ||
8ed66016 | 615 | return cli_readline_into_buffer(prompt, console_buffer, enable_history); |
d684c216 | 616 | } |