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c609719b WD |
1 | /* |
2 | * (C) Copyright 2000 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
501090aa WD |
5 | * Add to readline cmdline-editing by |
6 | * (C) Copyright 2005 | |
7 | * JinHua Luo, GuangDong Linux Center, <luo.jinhua@gd-linux.com> | |
8 | * | |
c609719b WD |
9 | * See file CREDITS for list of people who contributed to this |
10 | * project. | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License as | |
14 | * published by the Free Software Foundation; either version 2 of | |
15 | * the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
25 | * MA 02111-1307 USA | |
26 | */ | |
27 | ||
a6c7ad2f WD |
28 | /* #define DEBUG */ |
29 | ||
c609719b WD |
30 | #include <common.h> |
31 | #include <watchdog.h> | |
32 | #include <command.h> | |
d9631ecf WD |
33 | #ifdef CONFIG_MODEM_SUPPORT |
34 | #include <malloc.h> /* for free() prototype */ | |
35 | #endif | |
c609719b WD |
36 | |
37 | #ifdef CFG_HUSH_PARSER | |
38 | #include <hush.h> | |
39 | #endif | |
40 | ||
bdccc4fe WD |
41 | #include <post.h> |
42 | ||
d87080b7 WD |
43 | #ifdef CONFIG_SILENT_CONSOLE |
44 | DECLARE_GLOBAL_DATA_PTR; | |
45 | #endif | |
46 | ||
fad63407 HS |
47 | /* |
48 | * Board-specific Platform code can reimplement show_boot_progress () if needed | |
49 | */ | |
50 | void inline __show_boot_progress (int val) {} | |
51 | void inline show_boot_progress (int val) __attribute__((weak, alias("__show_boot_progress"))); | |
52 | ||
8bde7f77 WD |
53 | #if defined(CONFIG_BOOT_RETRY_TIME) && defined(CONFIG_RESET_TO_RETRY) |
54 | extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); /* for do_reset() prototype */ | |
55 | #endif | |
56 | ||
57 | extern int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); | |
58 | ||
59 | ||
c609719b WD |
60 | #define MAX_DELAY_STOP_STR 32 |
61 | ||
c609719b WD |
62 | #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0) |
63 | static int abortboot(int); | |
64 | #endif | |
65 | ||
66 | #undef DEBUG_PARSER | |
67 | ||
68 | char console_buffer[CFG_CBSIZE]; /* console I/O buffer */ | |
69 | ||
3ca9122f SR |
70 | #ifndef CONFIG_CMDLINE_EDITING |
71 | static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen); | |
c609719b WD |
72 | static char erase_seq[] = "\b \b"; /* erase sequence */ |
73 | static char tab_seq[] = " "; /* used to expand TABs */ | |
3ca9122f | 74 | #endif /* CONFIG_CMDLINE_EDITING */ |
c609719b WD |
75 | |
76 | #ifdef CONFIG_BOOT_RETRY_TIME | |
77 | static uint64_t endtime = 0; /* must be set, default is instant timeout */ | |
78 | static int retry_time = -1; /* -1 so can call readline before main_loop */ | |
79 | #endif | |
80 | ||
81 | #define endtick(seconds) (get_ticks() + (uint64_t)(seconds) * get_tbclk()) | |
82 | ||
83 | #ifndef CONFIG_BOOT_RETRY_MIN | |
84 | #define CONFIG_BOOT_RETRY_MIN CONFIG_BOOT_RETRY_TIME | |
85 | #endif | |
86 | ||
87 | #ifdef CONFIG_MODEM_SUPPORT | |
88 | int do_mdm_init = 0; | |
89 | extern void mdm_init(void); /* defined in board.c */ | |
90 | #endif | |
91 | ||
92 | /*************************************************************************** | |
93 | * Watch for 'delay' seconds for autoboot stop or autoboot delay string. | |
94 | * returns: 0 - no key string, allow autoboot | |
95 | * 1 - got key string, abort | |
96 | */ | |
97 | #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0) | |
98 | # if defined(CONFIG_AUTOBOOT_KEYED) | |
99 | static __inline__ int abortboot(int bootdelay) | |
100 | { | |
101 | int abort = 0; | |
102 | uint64_t etime = endtick(bootdelay); | |
19973b6a | 103 | struct { |
c609719b WD |
104 | char* str; |
105 | u_int len; | |
106 | int retry; | |
107 | } | |
19973b6a | 108 | delaykey [] = { |
c609719b WD |
109 | { str: getenv ("bootdelaykey"), retry: 1 }, |
110 | { str: getenv ("bootdelaykey2"), retry: 1 }, | |
111 | { str: getenv ("bootstopkey"), retry: 0 }, | |
112 | { str: getenv ("bootstopkey2"), retry: 0 }, | |
113 | }; | |
114 | ||
115 | char presskey [MAX_DELAY_STOP_STR]; | |
116 | u_int presskey_len = 0; | |
117 | u_int presskey_max = 0; | |
118 | u_int i; | |
119 | ||
120 | # ifdef CONFIG_AUTOBOOT_PROMPT | |
ada4d400 | 121 | printf(CONFIG_AUTOBOOT_PROMPT, bootdelay); |
c609719b WD |
122 | # endif |
123 | ||
124 | # ifdef CONFIG_AUTOBOOT_DELAY_STR | |
125 | if (delaykey[0].str == NULL) | |
126 | delaykey[0].str = CONFIG_AUTOBOOT_DELAY_STR; | |
127 | # endif | |
128 | # ifdef CONFIG_AUTOBOOT_DELAY_STR2 | |
129 | if (delaykey[1].str == NULL) | |
130 | delaykey[1].str = CONFIG_AUTOBOOT_DELAY_STR2; | |
131 | # endif | |
132 | # ifdef CONFIG_AUTOBOOT_STOP_STR | |
133 | if (delaykey[2].str == NULL) | |
134 | delaykey[2].str = CONFIG_AUTOBOOT_STOP_STR; | |
135 | # endif | |
136 | # ifdef CONFIG_AUTOBOOT_STOP_STR2 | |
137 | if (delaykey[3].str == NULL) | |
138 | delaykey[3].str = CONFIG_AUTOBOOT_STOP_STR2; | |
139 | # endif | |
140 | ||
141 | for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i ++) { | |
142 | delaykey[i].len = delaykey[i].str == NULL ? | |
143 | 0 : strlen (delaykey[i].str); | |
144 | delaykey[i].len = delaykey[i].len > MAX_DELAY_STOP_STR ? | |
145 | MAX_DELAY_STOP_STR : delaykey[i].len; | |
146 | ||
147 | presskey_max = presskey_max > delaykey[i].len ? | |
148 | presskey_max : delaykey[i].len; | |
149 | ||
150 | # if DEBUG_BOOTKEYS | |
151 | printf("%s key:<%s>\n", | |
152 | delaykey[i].retry ? "delay" : "stop", | |
153 | delaykey[i].str ? delaykey[i].str : "NULL"); | |
154 | # endif | |
155 | } | |
156 | ||
157 | /* In order to keep up with incoming data, check timeout only | |
158 | * when catch up. | |
159 | */ | |
160 | while (!abort && get_ticks() <= etime) { | |
161 | for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i ++) { | |
162 | if (delaykey[i].len > 0 && | |
163 | presskey_len >= delaykey[i].len && | |
164 | memcmp (presskey + presskey_len - delaykey[i].len, | |
8bde7f77 | 165 | delaykey[i].str, |
c609719b WD |
166 | delaykey[i].len) == 0) { |
167 | # if DEBUG_BOOTKEYS | |
168 | printf("got %skey\n", | |
169 | delaykey[i].retry ? "delay" : "stop"); | |
170 | # endif | |
171 | ||
172 | # ifdef CONFIG_BOOT_RETRY_TIME | |
173 | /* don't retry auto boot */ | |
174 | if (! delaykey[i].retry) | |
175 | retry_time = -1; | |
176 | # endif | |
177 | abort = 1; | |
178 | } | |
179 | } | |
180 | ||
181 | if (tstc()) { | |
182 | if (presskey_len < presskey_max) { | |
183 | presskey [presskey_len ++] = getc(); | |
184 | } | |
185 | else { | |
186 | for (i = 0; i < presskey_max - 1; i ++) | |
187 | presskey [i] = presskey [i + 1]; | |
188 | ||
189 | presskey [i] = getc(); | |
190 | } | |
191 | } | |
192 | } | |
193 | # if DEBUG_BOOTKEYS | |
194 | if (!abort) | |
ada4d400 | 195 | puts("key timeout\n"); |
c609719b WD |
196 | # endif |
197 | ||
8cb8143e | 198 | #ifdef CONFIG_SILENT_CONSOLE |
4ec5bd55 LM |
199 | if (abort) |
200 | gd->flags &= ~GD_FLG_SILENT; | |
8cb8143e | 201 | #endif |
202 | ||
c609719b WD |
203 | return abort; |
204 | } | |
205 | ||
206 | # else /* !defined(CONFIG_AUTOBOOT_KEYED) */ | |
207 | ||
c7de829c WD |
208 | #ifdef CONFIG_MENUKEY |
209 | static int menukey = 0; | |
210 | #endif | |
211 | ||
c609719b WD |
212 | static __inline__ int abortboot(int bootdelay) |
213 | { | |
214 | int abort = 0; | |
215 | ||
c7de829c WD |
216 | #ifdef CONFIG_MENUPROMPT |
217 | printf(CONFIG_MENUPROMPT, bootdelay); | |
218 | #else | |
c609719b | 219 | printf("Hit any key to stop autoboot: %2d ", bootdelay); |
c7de829c | 220 | #endif |
c609719b WD |
221 | |
222 | #if defined CONFIG_ZERO_BOOTDELAY_CHECK | |
8bde7f77 WD |
223 | /* |
224 | * Check if key already pressed | |
225 | * Don't check if bootdelay < 0 | |
226 | */ | |
c609719b WD |
227 | if (bootdelay >= 0) { |
228 | if (tstc()) { /* we got a key press */ | |
229 | (void) getc(); /* consume input */ | |
4b9206ed | 230 | puts ("\b\b\b 0"); |
4ec5bd55 | 231 | abort = 1; /* don't auto boot */ |
c609719b | 232 | } |
8bde7f77 | 233 | } |
c609719b WD |
234 | #endif |
235 | ||
f72da340 | 236 | while ((bootdelay > 0) && (!abort)) { |
c609719b WD |
237 | int i; |
238 | ||
239 | --bootdelay; | |
240 | /* delay 100 * 10ms */ | |
241 | for (i=0; !abort && i<100; ++i) { | |
242 | if (tstc()) { /* we got a key press */ | |
243 | abort = 1; /* don't auto boot */ | |
244 | bootdelay = 0; /* no more delay */ | |
c7de829c WD |
245 | # ifdef CONFIG_MENUKEY |
246 | menukey = getc(); | |
247 | # else | |
c609719b | 248 | (void) getc(); /* consume input */ |
c7de829c | 249 | # endif |
c609719b WD |
250 | break; |
251 | } | |
ada4d400 | 252 | udelay(10000); |
c609719b WD |
253 | } |
254 | ||
ada4d400 | 255 | printf("\b\b\b%2d ", bootdelay); |
c609719b WD |
256 | } |
257 | ||
ada4d400 | 258 | putc('\n'); |
c609719b | 259 | |
f72da340 | 260 | #ifdef CONFIG_SILENT_CONSOLE |
4ec5bd55 LM |
261 | if (abort) |
262 | gd->flags &= ~GD_FLG_SILENT; | |
f72da340 WD |
263 | #endif |
264 | ||
c609719b WD |
265 | return abort; |
266 | } | |
267 | # endif /* CONFIG_AUTOBOOT_KEYED */ | |
268 | #endif /* CONFIG_BOOTDELAY >= 0 */ | |
269 | ||
270 | /****************************************************************************/ | |
271 | ||
272 | void main_loop (void) | |
273 | { | |
274 | #ifndef CFG_HUSH_PARSER | |
275 | static char lastcommand[CFG_CBSIZE] = { 0, }; | |
276 | int len; | |
277 | int rc = 1; | |
278 | int flag; | |
279 | #endif | |
280 | ||
281 | #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0) | |
282 | char *s; | |
283 | int bootdelay; | |
284 | #endif | |
285 | #ifdef CONFIG_PREBOOT | |
286 | char *p; | |
287 | #endif | |
bdccc4fe WD |
288 | #ifdef CONFIG_BOOTCOUNT_LIMIT |
289 | unsigned long bootcount = 0; | |
290 | unsigned long bootlimit = 0; | |
291 | char *bcs; | |
292 | char bcs_set[16]; | |
293 | #endif /* CONFIG_BOOTCOUNT_LIMIT */ | |
c609719b WD |
294 | |
295 | #if defined(CONFIG_VFD) && defined(VFD_TEST_LOGO) | |
296 | ulong bmp = 0; /* default bitmap */ | |
297 | extern int trab_vfd (ulong bitmap); | |
298 | ||
299 | #ifdef CONFIG_MODEM_SUPPORT | |
300 | if (do_mdm_init) | |
301 | bmp = 1; /* alternate bitmap */ | |
302 | #endif | |
303 | trab_vfd (bmp); | |
304 | #endif /* CONFIG_VFD && VFD_TEST_LOGO */ | |
305 | ||
bdccc4fe WD |
306 | #ifdef CONFIG_BOOTCOUNT_LIMIT |
307 | bootcount = bootcount_load(); | |
308 | bootcount++; | |
309 | bootcount_store (bootcount); | |
310 | sprintf (bcs_set, "%lu", bootcount); | |
311 | setenv ("bootcount", bcs_set); | |
312 | bcs = getenv ("bootlimit"); | |
313 | bootlimit = bcs ? simple_strtoul (bcs, NULL, 10) : 0; | |
314 | #endif /* CONFIG_BOOTCOUNT_LIMIT */ | |
315 | ||
c609719b WD |
316 | #ifdef CONFIG_MODEM_SUPPORT |
317 | debug ("DEBUG: main_loop: do_mdm_init=%d\n", do_mdm_init); | |
318 | if (do_mdm_init) { | |
77ddac94 | 319 | char *str = strdup(getenv("mdm_cmd")); |
c609719b WD |
320 | setenv ("preboot", str); /* set or delete definition */ |
321 | if (str != NULL) | |
322 | free (str); | |
323 | mdm_init(); /* wait for modem connection */ | |
324 | } | |
325 | #endif /* CONFIG_MODEM_SUPPORT */ | |
326 | ||
0587597c SR |
327 | #ifdef CONFIG_VERSION_VARIABLE |
328 | { | |
329 | extern char version_string[]; | |
0587597c | 330 | |
155cb010 | 331 | setenv ("ver", version_string); /* set version variable */ |
0587597c SR |
332 | } |
333 | #endif /* CONFIG_VERSION_VARIABLE */ | |
334 | ||
c609719b WD |
335 | #ifdef CFG_HUSH_PARSER |
336 | u_boot_hush_start (); | |
337 | #endif | |
338 | ||
04a85b3b WD |
339 | #ifdef CONFIG_AUTO_COMPLETE |
340 | install_auto_complete(); | |
341 | #endif | |
342 | ||
c609719b WD |
343 | #ifdef CONFIG_PREBOOT |
344 | if ((p = getenv ("preboot")) != NULL) { | |
345 | # ifdef CONFIG_AUTOBOOT_KEYED | |
346 | int prev = disable_ctrlc(1); /* disable Control C checking */ | |
347 | # endif | |
348 | ||
349 | # ifndef CFG_HUSH_PARSER | |
350 | run_command (p, 0); | |
351 | # else | |
352 | parse_string_outer(p, FLAG_PARSE_SEMICOLON | | |
353 | FLAG_EXIT_FROM_LOOP); | |
354 | # endif | |
355 | ||
356 | # ifdef CONFIG_AUTOBOOT_KEYED | |
357 | disable_ctrlc(prev); /* restore Control C checking */ | |
358 | # endif | |
359 | } | |
360 | #endif /* CONFIG_PREBOOT */ | |
361 | ||
362 | #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0) | |
363 | s = getenv ("bootdelay"); | |
364 | bootdelay = s ? (int)simple_strtol(s, NULL, 10) : CONFIG_BOOTDELAY; | |
365 | ||
a6c7ad2f | 366 | debug ("### main_loop entered: bootdelay=%d\n\n", bootdelay); |
c609719b WD |
367 | |
368 | # ifdef CONFIG_BOOT_RETRY_TIME | |
6dd652fa | 369 | init_cmd_timeout (); |
c609719b WD |
370 | # endif /* CONFIG_BOOT_RETRY_TIME */ |
371 | ||
bdccc4fe WD |
372 | #ifdef CONFIG_BOOTCOUNT_LIMIT |
373 | if (bootlimit && (bootcount > bootlimit)) { | |
374 | printf ("Warning: Bootlimit (%u) exceeded. Using altbootcmd.\n", | |
375 | (unsigned)bootlimit); | |
376 | s = getenv ("altbootcmd"); | |
377 | } | |
378 | else | |
379 | #endif /* CONFIG_BOOTCOUNT_LIMIT */ | |
380 | s = getenv ("bootcmd"); | |
a6c7ad2f WD |
381 | |
382 | debug ("### main_loop: bootcmd=\"%s\"\n", s ? s : "<UNDEFINED>"); | |
383 | ||
c609719b WD |
384 | if (bootdelay >= 0 && s && !abortboot (bootdelay)) { |
385 | # ifdef CONFIG_AUTOBOOT_KEYED | |
386 | int prev = disable_ctrlc(1); /* disable Control C checking */ | |
387 | # endif | |
388 | ||
389 | # ifndef CFG_HUSH_PARSER | |
390 | run_command (s, 0); | |
391 | # else | |
392 | parse_string_outer(s, FLAG_PARSE_SEMICOLON | | |
393 | FLAG_EXIT_FROM_LOOP); | |
394 | # endif | |
395 | ||
396 | # ifdef CONFIG_AUTOBOOT_KEYED | |
397 | disable_ctrlc(prev); /* restore Control C checking */ | |
398 | # endif | |
399 | } | |
c7de829c WD |
400 | |
401 | # ifdef CONFIG_MENUKEY | |
a6c7ad2f | 402 | if (menukey == CONFIG_MENUKEY) { |
c7de829c | 403 | s = getenv("menucmd"); |
a6c7ad2f | 404 | if (s) { |
c7de829c | 405 | # ifndef CFG_HUSH_PARSER |
6225c5db | 406 | run_command (s, 0); |
c7de829c WD |
407 | # else |
408 | parse_string_outer(s, FLAG_PARSE_SEMICOLON | | |
409 | FLAG_EXIT_FROM_LOOP); | |
410 | # endif | |
411 | } | |
412 | } | |
413 | #endif /* CONFIG_MENUKEY */ | |
c609719b WD |
414 | #endif /* CONFIG_BOOTDELAY */ |
415 | ||
c7de829c WD |
416 | #ifdef CONFIG_AMIGAONEG3SE |
417 | { | |
418 | extern void video_banner(void); | |
419 | video_banner(); | |
420 | } | |
421 | #endif | |
422 | ||
c609719b WD |
423 | /* |
424 | * Main Loop for Monitor Command Processing | |
425 | */ | |
426 | #ifdef CFG_HUSH_PARSER | |
427 | parse_file_outer(); | |
428 | /* This point is never reached */ | |
429 | for (;;); | |
430 | #else | |
431 | for (;;) { | |
432 | #ifdef CONFIG_BOOT_RETRY_TIME | |
433 | if (rc >= 0) { | |
434 | /* Saw enough of a valid command to | |
435 | * restart the timeout. | |
436 | */ | |
437 | reset_cmd_timeout(); | |
438 | } | |
439 | #endif | |
440 | len = readline (CFG_PROMPT); | |
441 | ||
442 | flag = 0; /* assume no special flags for now */ | |
443 | if (len > 0) | |
444 | strcpy (lastcommand, console_buffer); | |
445 | else if (len == 0) | |
446 | flag |= CMD_FLAG_REPEAT; | |
447 | #ifdef CONFIG_BOOT_RETRY_TIME | |
448 | else if (len == -2) { | |
449 | /* -2 means timed out, retry autoboot | |
450 | */ | |
4b9206ed | 451 | puts ("\nTimed out waiting for command\n"); |
c609719b WD |
452 | # ifdef CONFIG_RESET_TO_RETRY |
453 | /* Reinit board to run initialization code again */ | |
454 | do_reset (NULL, 0, 0, NULL); | |
455 | # else | |
456 | return; /* retry autoboot */ | |
457 | # endif | |
458 | } | |
459 | #endif | |
460 | ||
461 | if (len == -1) | |
4b9206ed | 462 | puts ("<INTERRUPT>\n"); |
c609719b WD |
463 | else |
464 | rc = run_command (lastcommand, flag); | |
465 | ||
466 | if (rc <= 0) { | |
467 | /* invalid command or not repeatable, forget it */ | |
468 | lastcommand[0] = 0; | |
469 | } | |
470 | } | |
471 | #endif /*CFG_HUSH_PARSER*/ | |
472 | } | |
473 | ||
6dd652fa WD |
474 | #ifdef CONFIG_BOOT_RETRY_TIME |
475 | /*************************************************************************** | |
19973b6a | 476 | * initialize command line timeout |
6dd652fa WD |
477 | */ |
478 | void init_cmd_timeout(void) | |
479 | { | |
480 | char *s = getenv ("bootretry"); | |
481 | ||
482 | if (s != NULL) | |
b028f715 | 483 | retry_time = (int)simple_strtol(s, NULL, 10); |
6dd652fa WD |
484 | else |
485 | retry_time = CONFIG_BOOT_RETRY_TIME; | |
486 | ||
487 | if (retry_time >= 0 && retry_time < CONFIG_BOOT_RETRY_MIN) | |
488 | retry_time = CONFIG_BOOT_RETRY_MIN; | |
489 | } | |
490 | ||
c609719b WD |
491 | /*************************************************************************** |
492 | * reset command line timeout to retry_time seconds | |
493 | */ | |
c609719b WD |
494 | void reset_cmd_timeout(void) |
495 | { | |
496 | endtime = endtick(retry_time); | |
497 | } | |
498 | #endif | |
499 | ||
501090aa WD |
500 | #ifdef CONFIG_CMDLINE_EDITING |
501 | ||
502 | /* | |
503 | * cmdline-editing related codes from vivi. | |
504 | * Author: Janghoon Lyu <nandy@mizi.com> | |
505 | */ | |
506 | ||
501090aa WD |
507 | #define putnstr(str,n) do { \ |
508 | printf ("%.*s", n, str); \ | |
509 | } while (0) | |
501090aa WD |
510 | |
511 | #define CTL_CH(c) ((c) - 'a' + 1) | |
512 | ||
513 | #define MAX_CMDBUF_SIZE 256 | |
514 | ||
515 | #define CTL_BACKSPACE ('\b') | |
516 | #define DEL ((char)255) | |
517 | #define DEL7 ((char)127) | |
518 | #define CREAD_HIST_CHAR ('!') | |
519 | ||
520 | #define getcmd_putch(ch) putc(ch) | |
521 | #define getcmd_getch() getc() | |
522 | #define getcmd_cbeep() getcmd_putch('\a') | |
523 | ||
524 | #define HIST_MAX 20 | |
525 | #define HIST_SIZE MAX_CMDBUF_SIZE | |
526 | ||
527 | static int hist_max = 0; | |
528 | static int hist_add_idx = 0; | |
529 | static int hist_cur = -1; | |
530 | unsigned hist_num = 0; | |
531 | ||
532 | char* hist_list[HIST_MAX]; | |
533 | char hist_lines[HIST_MAX][HIST_SIZE]; | |
534 | ||
535 | #define add_idx_minus_one() ((hist_add_idx == 0) ? hist_max : hist_add_idx-1) | |
536 | ||
537 | static void hist_init(void) | |
538 | { | |
539 | int i; | |
540 | ||
541 | hist_max = 0; | |
542 | hist_add_idx = 0; | |
543 | hist_cur = -1; | |
544 | hist_num = 0; | |
545 | ||
546 | for (i = 0; i < HIST_MAX; i++) { | |
547 | hist_list[i] = hist_lines[i]; | |
548 | hist_list[i][0] = '\0'; | |
549 | } | |
550 | } | |
551 | ||
552 | static void cread_add_to_hist(char *line) | |
553 | { | |
554 | strcpy(hist_list[hist_add_idx], line); | |
555 | ||
556 | if (++hist_add_idx >= HIST_MAX) | |
557 | hist_add_idx = 0; | |
558 | ||
559 | if (hist_add_idx > hist_max) | |
560 | hist_max = hist_add_idx; | |
561 | ||
562 | hist_num++; | |
563 | } | |
564 | ||
565 | static char* hist_prev(void) | |
566 | { | |
567 | char *ret; | |
568 | int old_cur; | |
569 | ||
570 | if (hist_cur < 0) | |
571 | return NULL; | |
572 | ||
573 | old_cur = hist_cur; | |
574 | if (--hist_cur < 0) | |
575 | hist_cur = hist_max; | |
576 | ||
577 | if (hist_cur == hist_add_idx) { | |
578 | hist_cur = old_cur; | |
579 | ret = NULL; | |
580 | } else | |
581 | ret = hist_list[hist_cur]; | |
582 | ||
583 | return (ret); | |
584 | } | |
585 | ||
586 | static char* hist_next(void) | |
587 | { | |
588 | char *ret; | |
589 | ||
590 | if (hist_cur < 0) | |
591 | return NULL; | |
592 | ||
593 | if (hist_cur == hist_add_idx) | |
594 | return NULL; | |
595 | ||
596 | if (++hist_cur > hist_max) | |
597 | hist_cur = 0; | |
598 | ||
599 | if (hist_cur == hist_add_idx) { | |
600 | ret = ""; | |
601 | } else | |
602 | ret = hist_list[hist_cur]; | |
603 | ||
604 | return (ret); | |
605 | } | |
606 | ||
3ca9122f | 607 | #ifndef CONFIG_CMDLINE_EDITING |
501090aa WD |
608 | static void cread_print_hist_list(void) |
609 | { | |
610 | int i; | |
611 | unsigned long n; | |
612 | ||
613 | n = hist_num - hist_max; | |
614 | ||
615 | i = hist_add_idx + 1; | |
616 | while (1) { | |
617 | if (i > hist_max) | |
618 | i = 0; | |
619 | if (i == hist_add_idx) | |
620 | break; | |
621 | printf("%s\n", hist_list[i]); | |
622 | n++; | |
623 | i++; | |
624 | } | |
625 | } | |
3ca9122f | 626 | #endif /* CONFIG_CMDLINE_EDITING */ |
501090aa WD |
627 | |
628 | #define BEGINNING_OF_LINE() { \ | |
629 | while (num) { \ | |
630 | getcmd_putch(CTL_BACKSPACE); \ | |
631 | num--; \ | |
632 | } \ | |
633 | } | |
634 | ||
635 | #define ERASE_TO_EOL() { \ | |
636 | if (num < eol_num) { \ | |
637 | int tmp; \ | |
638 | for (tmp = num; tmp < eol_num; tmp++) \ | |
639 | getcmd_putch(' '); \ | |
640 | while (tmp-- > num) \ | |
641 | getcmd_putch(CTL_BACKSPACE); \ | |
642 | eol_num = num; \ | |
643 | } \ | |
644 | } | |
645 | ||
646 | #define REFRESH_TO_EOL() { \ | |
647 | if (num < eol_num) { \ | |
648 | wlen = eol_num - num; \ | |
649 | putnstr(buf + num, wlen); \ | |
650 | num = eol_num; \ | |
651 | } \ | |
652 | } | |
653 | ||
654 | static void cread_add_char(char ichar, int insert, unsigned long *num, | |
655 | unsigned long *eol_num, char *buf, unsigned long len) | |
656 | { | |
657 | unsigned long wlen; | |
658 | ||
659 | /* room ??? */ | |
660 | if (insert || *num == *eol_num) { | |
661 | if (*eol_num > len - 1) { | |
662 | getcmd_cbeep(); | |
663 | return; | |
664 | } | |
665 | (*eol_num)++; | |
666 | } | |
667 | ||
668 | if (insert) { | |
669 | wlen = *eol_num - *num; | |
670 | if (wlen > 1) { | |
671 | memmove(&buf[*num+1], &buf[*num], wlen-1); | |
672 | } | |
673 | ||
674 | buf[*num] = ichar; | |
675 | putnstr(buf + *num, wlen); | |
676 | (*num)++; | |
677 | while (--wlen) { | |
678 | getcmd_putch(CTL_BACKSPACE); | |
679 | } | |
680 | } else { | |
681 | /* echo the character */ | |
682 | wlen = 1; | |
683 | buf[*num] = ichar; | |
684 | putnstr(buf + *num, wlen); | |
685 | (*num)++; | |
686 | } | |
687 | } | |
688 | ||
689 | static void cread_add_str(char *str, int strsize, int insert, unsigned long *num, | |
690 | unsigned long *eol_num, char *buf, unsigned long len) | |
691 | { | |
692 | while (strsize--) { | |
693 | cread_add_char(*str, insert, num, eol_num, buf, len); | |
694 | str++; | |
695 | } | |
696 | } | |
697 | ||
23d0baf9 | 698 | static int cread_line(const char *const prompt, char *buf, unsigned int *len) |
501090aa WD |
699 | { |
700 | unsigned long num = 0; | |
701 | unsigned long eol_num = 0; | |
702 | unsigned long rlen; | |
703 | unsigned long wlen; | |
704 | char ichar; | |
705 | int insert = 1; | |
706 | int esc_len = 0; | |
707 | int rc = 0; | |
708 | char esc_save[8]; | |
709 | ||
710 | while (1) { | |
711 | rlen = 1; | |
00ac50e3 AE |
712 | #ifdef CONFIG_BOOT_RETRY_TIME |
713 | while (!tstc()) { /* while no incoming data */ | |
714 | if (retry_time >= 0 && get_ticks() > endtime) | |
715 | return (-2); /* timed out */ | |
716 | } | |
717 | #endif | |
718 | ||
501090aa WD |
719 | ichar = getcmd_getch(); |
720 | ||
721 | if ((ichar == '\n') || (ichar == '\r')) { | |
dd9f06f0 | 722 | putc('\n'); |
501090aa WD |
723 | break; |
724 | } | |
725 | ||
726 | /* | |
727 | * handle standard linux xterm esc sequences for arrow key, etc. | |
728 | */ | |
729 | if (esc_len != 0) { | |
730 | if (esc_len == 1) { | |
731 | if (ichar == '[') { | |
732 | esc_save[esc_len] = ichar; | |
733 | esc_len = 2; | |
734 | } else { | |
735 | cread_add_str(esc_save, esc_len, insert, | |
736 | &num, &eol_num, buf, *len); | |
737 | esc_len = 0; | |
738 | } | |
739 | continue; | |
740 | } | |
741 | ||
742 | switch (ichar) { | |
743 | ||
744 | case 'D': /* <- key */ | |
745 | ichar = CTL_CH('b'); | |
746 | esc_len = 0; | |
747 | break; | |
748 | case 'C': /* -> key */ | |
749 | ichar = CTL_CH('f'); | |
750 | esc_len = 0; | |
751 | break; /* pass off to ^F handler */ | |
752 | case 'H': /* Home key */ | |
753 | ichar = CTL_CH('a'); | |
754 | esc_len = 0; | |
755 | break; /* pass off to ^A handler */ | |
756 | case 'A': /* up arrow */ | |
757 | ichar = CTL_CH('p'); | |
758 | esc_len = 0; | |
759 | break; /* pass off to ^P handler */ | |
760 | case 'B': /* down arrow */ | |
761 | ichar = CTL_CH('n'); | |
762 | esc_len = 0; | |
763 | break; /* pass off to ^N handler */ | |
764 | default: | |
765 | esc_save[esc_len++] = ichar; | |
766 | cread_add_str(esc_save, esc_len, insert, | |
767 | &num, &eol_num, buf, *len); | |
768 | esc_len = 0; | |
769 | continue; | |
770 | } | |
771 | } | |
772 | ||
773 | switch (ichar) { | |
774 | case 0x1b: | |
775 | if (esc_len == 0) { | |
776 | esc_save[esc_len] = ichar; | |
777 | esc_len = 1; | |
778 | } else { | |
dd9f06f0 | 779 | puts("impossible condition #876\n"); |
501090aa WD |
780 | esc_len = 0; |
781 | } | |
782 | break; | |
783 | ||
784 | case CTL_CH('a'): | |
785 | BEGINNING_OF_LINE(); | |
786 | break; | |
787 | case CTL_CH('c'): /* ^C - break */ | |
788 | *buf = '\0'; /* discard input */ | |
789 | return (-1); | |
790 | case CTL_CH('f'): | |
791 | if (num < eol_num) { | |
792 | getcmd_putch(buf[num]); | |
793 | num++; | |
794 | } | |
795 | break; | |
796 | case CTL_CH('b'): | |
797 | if (num) { | |
798 | getcmd_putch(CTL_BACKSPACE); | |
799 | num--; | |
800 | } | |
801 | break; | |
802 | case CTL_CH('d'): | |
803 | if (num < eol_num) { | |
804 | wlen = eol_num - num - 1; | |
805 | if (wlen) { | |
806 | memmove(&buf[num], &buf[num+1], wlen); | |
807 | putnstr(buf + num, wlen); | |
808 | } | |
809 | ||
810 | getcmd_putch(' '); | |
811 | do { | |
812 | getcmd_putch(CTL_BACKSPACE); | |
813 | } while (wlen--); | |
814 | eol_num--; | |
815 | } | |
816 | break; | |
817 | case CTL_CH('k'): | |
818 | ERASE_TO_EOL(); | |
819 | break; | |
820 | case CTL_CH('e'): | |
821 | REFRESH_TO_EOL(); | |
822 | break; | |
823 | case CTL_CH('o'): | |
824 | insert = !insert; | |
825 | break; | |
826 | case CTL_CH('x'): | |
23d0baf9 | 827 | case CTL_CH('u'): |
501090aa WD |
828 | BEGINNING_OF_LINE(); |
829 | ERASE_TO_EOL(); | |
830 | break; | |
831 | case DEL: | |
832 | case DEL7: | |
833 | case 8: | |
834 | if (num) { | |
835 | wlen = eol_num - num; | |
836 | num--; | |
837 | memmove(&buf[num], &buf[num+1], wlen); | |
838 | getcmd_putch(CTL_BACKSPACE); | |
839 | putnstr(buf + num, wlen); | |
840 | getcmd_putch(' '); | |
841 | do { | |
842 | getcmd_putch(CTL_BACKSPACE); | |
843 | } while (wlen--); | |
844 | eol_num--; | |
845 | } | |
846 | break; | |
847 | case CTL_CH('p'): | |
848 | case CTL_CH('n'): | |
849 | { | |
850 | char * hline; | |
851 | ||
852 | esc_len = 0; | |
853 | ||
854 | if (ichar == CTL_CH('p')) | |
855 | hline = hist_prev(); | |
856 | else | |
857 | hline = hist_next(); | |
858 | ||
859 | if (!hline) { | |
860 | getcmd_cbeep(); | |
861 | continue; | |
862 | } | |
863 | ||
864 | /* nuke the current line */ | |
865 | /* first, go home */ | |
866 | BEGINNING_OF_LINE(); | |
867 | ||
868 | /* erase to end of line */ | |
869 | ERASE_TO_EOL(); | |
870 | ||
871 | /* copy new line into place and display */ | |
872 | strcpy(buf, hline); | |
873 | eol_num = strlen(buf); | |
874 | REFRESH_TO_EOL(); | |
875 | continue; | |
876 | } | |
23d0baf9 JCPV |
877 | #ifdef CONFIG_AUTO_COMPLETE |
878 | case '\t': { | |
879 | int num2, col; | |
880 | ||
881 | /* do not autocomplete when in the middle */ | |
882 | if (num < eol_num) { | |
883 | getcmd_cbeep(); | |
884 | break; | |
885 | } | |
886 | ||
887 | buf[num] = '\0'; | |
888 | col = strlen(prompt) + eol_num; | |
889 | num2 = num; | |
890 | if (cmd_auto_complete(prompt, buf, &num2, &col)) { | |
891 | col = num2 - num; | |
892 | num += col; | |
893 | eol_num += col; | |
894 | } | |
895 | break; | |
896 | } | |
897 | #endif | |
501090aa WD |
898 | default: |
899 | cread_add_char(ichar, insert, &num, &eol_num, buf, *len); | |
900 | break; | |
901 | } | |
902 | } | |
903 | *len = eol_num; | |
904 | buf[eol_num] = '\0'; /* lose the newline */ | |
905 | ||
906 | if (buf[0] && buf[0] != CREAD_HIST_CHAR) | |
907 | cread_add_to_hist(buf); | |
908 | hist_cur = hist_add_idx; | |
909 | ||
910 | return (rc); | |
911 | } | |
912 | ||
913 | #endif /* CONFIG_CMDLINE_EDITING */ | |
914 | ||
c609719b WD |
915 | /****************************************************************************/ |
916 | ||
917 | /* | |
918 | * Prompt for input and read a line. | |
919 | * If CONFIG_BOOT_RETRY_TIME is defined and retry_time >= 0, | |
920 | * time out when time goes past endtime (timebase time in ticks). | |
921 | * Return: number of read characters | |
922 | * -1 if break | |
923 | * -2 if timed out | |
924 | */ | |
925 | int readline (const char *const prompt) | |
926 | { | |
6636b62a JY |
927 | return readline_into_buffer(prompt, console_buffer); |
928 | } | |
929 | ||
930 | ||
931 | int readline_into_buffer (const char *const prompt, char * buffer) | |
932 | { | |
933 | char *p = buffer; | |
501090aa | 934 | #ifdef CONFIG_CMDLINE_EDITING |
501090aa | 935 | unsigned int len=MAX_CMDBUF_SIZE; |
d8f961bb | 936 | int rc; |
501090aa WD |
937 | static int initted = 0; |
938 | ||
939 | if (!initted) { | |
940 | hist_init(); | |
941 | initted = 1; | |
942 | } | |
943 | ||
dd9f06f0 | 944 | puts (prompt); |
501090aa | 945 | |
23d0baf9 | 946 | rc = cread_line(prompt, p, &len); |
d8f961bb | 947 | return rc < 0 ? rc : len; |
501090aa | 948 | #else |
0ec59524 | 949 | char * p_buf = p; |
c609719b WD |
950 | int n = 0; /* buffer index */ |
951 | int plen = 0; /* prompt length */ | |
952 | int col; /* output column cnt */ | |
953 | char c; | |
954 | ||
955 | /* print prompt */ | |
956 | if (prompt) { | |
957 | plen = strlen (prompt); | |
958 | puts (prompt); | |
959 | } | |
960 | col = plen; | |
961 | ||
962 | for (;;) { | |
963 | #ifdef CONFIG_BOOT_RETRY_TIME | |
964 | while (!tstc()) { /* while no incoming data */ | |
965 | if (retry_time >= 0 && get_ticks() > endtime) | |
966 | return (-2); /* timed out */ | |
967 | } | |
968 | #endif | |
969 | WATCHDOG_RESET(); /* Trigger watchdog, if needed */ | |
970 | ||
971 | #ifdef CONFIG_SHOW_ACTIVITY | |
972 | while (!tstc()) { | |
973 | extern void show_activity(int arg); | |
974 | show_activity(0); | |
975 | } | |
976 | #endif | |
977 | c = getc(); | |
978 | ||
979 | /* | |
980 | * Special character handling | |
981 | */ | |
982 | switch (c) { | |
983 | case '\r': /* Enter */ | |
984 | case '\n': | |
985 | *p = '\0'; | |
986 | puts ("\r\n"); | |
6636b62a | 987 | return (p - p_buf); |
c609719b | 988 | |
27aa8186 WD |
989 | case '\0': /* nul */ |
990 | continue; | |
991 | ||
c609719b | 992 | case 0x03: /* ^C - break */ |
6636b62a | 993 | p_buf[0] = '\0'; /* discard input */ |
c609719b WD |
994 | return (-1); |
995 | ||
996 | case 0x15: /* ^U - erase line */ | |
997 | while (col > plen) { | |
998 | puts (erase_seq); | |
999 | --col; | |
1000 | } | |
6636b62a | 1001 | p = p_buf; |
c609719b WD |
1002 | n = 0; |
1003 | continue; | |
1004 | ||
1636d1c8 | 1005 | case 0x17: /* ^W - erase word */ |
6636b62a | 1006 | p=delete_char(p_buf, p, &col, &n, plen); |
c609719b | 1007 | while ((n > 0) && (*p != ' ')) { |
6636b62a | 1008 | p=delete_char(p_buf, p, &col, &n, plen); |
c609719b WD |
1009 | } |
1010 | continue; | |
1011 | ||
1012 | case 0x08: /* ^H - backspace */ | |
1013 | case 0x7F: /* DEL - backspace */ | |
6636b62a | 1014 | p=delete_char(p_buf, p, &col, &n, plen); |
c609719b WD |
1015 | continue; |
1016 | ||
1017 | default: | |
1018 | /* | |
1019 | * Must be a normal character then | |
1020 | */ | |
1021 | if (n < CFG_CBSIZE-2) { | |
1022 | if (c == '\t') { /* expand TABs */ | |
04a85b3b WD |
1023 | #ifdef CONFIG_AUTO_COMPLETE |
1024 | /* if auto completion triggered just continue */ | |
1025 | *p = '\0'; | |
1026 | if (cmd_auto_complete(prompt, console_buffer, &n, &col)) { | |
6636b62a | 1027 | p = p_buf + n; /* reset */ |
04a85b3b WD |
1028 | continue; |
1029 | } | |
1030 | #endif | |
c609719b WD |
1031 | puts (tab_seq+(col&07)); |
1032 | col += 8 - (col&07); | |
1033 | } else { | |
1034 | ++col; /* echo input */ | |
1035 | putc (c); | |
1036 | } | |
1037 | *p++ = c; | |
1038 | ++n; | |
1039 | } else { /* Buffer full */ | |
1040 | putc ('\a'); | |
1041 | } | |
1042 | } | |
1043 | } | |
501090aa | 1044 | #endif /* CONFIG_CMDLINE_EDITING */ |
c609719b WD |
1045 | } |
1046 | ||
1047 | /****************************************************************************/ | |
1048 | ||
3ca9122f | 1049 | #ifndef CONFIG_CMDLINE_EDITING |
c609719b WD |
1050 | static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen) |
1051 | { | |
1052 | char *s; | |
1053 | ||
1054 | if (*np == 0) { | |
1055 | return (p); | |
1056 | } | |
1057 | ||
1058 | if (*(--p) == '\t') { /* will retype the whole line */ | |
1059 | while (*colp > plen) { | |
1060 | puts (erase_seq); | |
1061 | (*colp)--; | |
1062 | } | |
1063 | for (s=buffer; s<p; ++s) { | |
1064 | if (*s == '\t') { | |
1065 | puts (tab_seq+((*colp) & 07)); | |
1066 | *colp += 8 - ((*colp) & 07); | |
1067 | } else { | |
1068 | ++(*colp); | |
1069 | putc (*s); | |
1070 | } | |
1071 | } | |
1072 | } else { | |
1073 | puts (erase_seq); | |
1074 | (*colp)--; | |
1075 | } | |
1076 | (*np)--; | |
1077 | return (p); | |
1078 | } | |
3ca9122f | 1079 | #endif /* CONFIG_CMDLINE_EDITING */ |
c609719b WD |
1080 | |
1081 | /****************************************************************************/ | |
1082 | ||
1083 | int parse_line (char *line, char *argv[]) | |
1084 | { | |
1085 | int nargs = 0; | |
1086 | ||
1087 | #ifdef DEBUG_PARSER | |
1088 | printf ("parse_line: \"%s\"\n", line); | |
1089 | #endif | |
1090 | while (nargs < CFG_MAXARGS) { | |
1091 | ||
1092 | /* skip any white space */ | |
1093 | while ((*line == ' ') || (*line == '\t')) { | |
1094 | ++line; | |
1095 | } | |
1096 | ||
1097 | if (*line == '\0') { /* end of line, no more args */ | |
1098 | argv[nargs] = NULL; | |
1099 | #ifdef DEBUG_PARSER | |
1100 | printf ("parse_line: nargs=%d\n", nargs); | |
1101 | #endif | |
1102 | return (nargs); | |
1103 | } | |
1104 | ||
1105 | argv[nargs++] = line; /* begin of argument string */ | |
1106 | ||
1107 | /* find end of string */ | |
1108 | while (*line && (*line != ' ') && (*line != '\t')) { | |
1109 | ++line; | |
1110 | } | |
1111 | ||
1112 | if (*line == '\0') { /* end of line, no more args */ | |
1113 | argv[nargs] = NULL; | |
1114 | #ifdef DEBUG_PARSER | |
1115 | printf ("parse_line: nargs=%d\n", nargs); | |
1116 | #endif | |
1117 | return (nargs); | |
1118 | } | |
1119 | ||
1120 | *line++ = '\0'; /* terminate current arg */ | |
1121 | } | |
1122 | ||
1123 | printf ("** Too many args (max. %d) **\n", CFG_MAXARGS); | |
1124 | ||
1125 | #ifdef DEBUG_PARSER | |
1126 | printf ("parse_line: nargs=%d\n", nargs); | |
1127 | #endif | |
1128 | return (nargs); | |
1129 | } | |
1130 | ||
1131 | /****************************************************************************/ | |
1132 | ||
1133 | static void process_macros (const char *input, char *output) | |
1134 | { | |
1135 | char c, prev; | |
1136 | const char *varname_start = NULL; | |
19973b6a | 1137 | int inputcnt = strlen (input); |
c609719b | 1138 | int outputcnt = CFG_CBSIZE; |
19973b6a WD |
1139 | int state = 0; /* 0 = waiting for '$' */ |
1140 | ||
1141 | /* 1 = waiting for '(' or '{' */ | |
1142 | /* 2 = waiting for ')' or '}' */ | |
1143 | /* 3 = waiting for ''' */ | |
c609719b WD |
1144 | #ifdef DEBUG_PARSER |
1145 | char *output_start = output; | |
1146 | ||
19973b6a WD |
1147 | printf ("[PROCESS_MACROS] INPUT len %d: \"%s\"\n", strlen (input), |
1148 | input); | |
c609719b WD |
1149 | #endif |
1150 | ||
19973b6a | 1151 | prev = '\0'; /* previous character */ |
c609719b WD |
1152 | |
1153 | while (inputcnt && outputcnt) { | |
8bde7f77 | 1154 | c = *input++; |
19973b6a WD |
1155 | inputcnt--; |
1156 | ||
1157 | if (state != 3) { | |
1158 | /* remove one level of escape characters */ | |
1159 | if ((c == '\\') && (prev != '\\')) { | |
1160 | if (inputcnt-- == 0) | |
1161 | break; | |
1162 | prev = c; | |
1163 | c = *input++; | |
1164 | } | |
c609719b | 1165 | } |
19973b6a WD |
1166 | |
1167 | switch (state) { | |
1168 | case 0: /* Waiting for (unescaped) $ */ | |
1169 | if ((c == '\'') && (prev != '\\')) { | |
1170 | state = 3; | |
1171 | break; | |
1172 | } | |
1173 | if ((c == '$') && (prev != '\\')) { | |
1174 | state++; | |
1175 | } else { | |
c609719b WD |
1176 | *(output++) = c; |
1177 | outputcnt--; | |
1178 | } | |
19973b6a WD |
1179 | break; |
1180 | case 1: /* Waiting for ( */ | |
1181 | if (c == '(' || c == '{') { | |
1182 | state++; | |
1183 | varname_start = input; | |
1184 | } else { | |
1185 | state = 0; | |
1186 | *(output++) = '$'; | |
1187 | outputcnt--; | |
c609719b | 1188 | |
19973b6a WD |
1189 | if (outputcnt) { |
1190 | *(output++) = c; | |
c609719b WD |
1191 | outputcnt--; |
1192 | } | |
19973b6a WD |
1193 | } |
1194 | break; | |
1195 | case 2: /* Waiting for ) */ | |
1196 | if (c == ')' || c == '}') { | |
1197 | int i; | |
1198 | char envname[CFG_CBSIZE], *envval; | |
1199 | int envcnt = input - varname_start - 1; /* Varname # of chars */ | |
1200 | ||
1201 | /* Get the varname */ | |
1202 | for (i = 0; i < envcnt; i++) { | |
1203 | envname[i] = varname_start[i]; | |
1204 | } | |
1205 | envname[i] = 0; | |
1206 | ||
1207 | /* Get its value */ | |
1208 | envval = getenv (envname); | |
1209 | ||
1210 | /* Copy into the line if it exists */ | |
1211 | if (envval != NULL) | |
1212 | while ((*envval) && outputcnt) { | |
1213 | *(output++) = *(envval++); | |
1214 | outputcnt--; | |
1215 | } | |
1216 | /* Look for another '$' */ | |
1217 | state = 0; | |
1218 | } | |
1219 | break; | |
1220 | case 3: /* Waiting for ' */ | |
1221 | if ((c == '\'') && (prev != '\\')) { | |
1222 | state = 0; | |
1223 | } else { | |
1224 | *(output++) = c; | |
1225 | outputcnt--; | |
1226 | } | |
1227 | break; | |
a25f862b | 1228 | } |
19973b6a | 1229 | prev = c; |
c609719b WD |
1230 | } |
1231 | ||
1232 | if (outputcnt) | |
1233 | *output = 0; | |
9160b96f BS |
1234 | else |
1235 | *(output - 1) = 0; | |
c609719b WD |
1236 | |
1237 | #ifdef DEBUG_PARSER | |
1238 | printf ("[PROCESS_MACROS] OUTPUT len %d: \"%s\"\n", | |
19973b6a | 1239 | strlen (output_start), output_start); |
c609719b WD |
1240 | #endif |
1241 | } | |
1242 | ||
1243 | /**************************************************************************** | |
1244 | * returns: | |
1245 | * 1 - command executed, repeatable | |
1246 | * 0 - command executed but not repeatable, interrupted commands are | |
1247 | * always considered not repeatable | |
1248 | * -1 - not executed (unrecognized, bootd recursion or too many args) | |
1249 | * (If cmd is NULL or "" or longer than CFG_CBSIZE-1 it is | |
1250 | * considered unrecognized) | |
1251 | * | |
1252 | * WARNING: | |
1253 | * | |
1254 | * We must create a temporary copy of the command since the command we get | |
1255 | * may be the result from getenv(), which returns a pointer directly to | |
1256 | * the environment data, which may change magicly when the command we run | |
1257 | * creates or modifies environment variables (like "bootp" does). | |
1258 | */ | |
1259 | ||
1260 | int run_command (const char *cmd, int flag) | |
1261 | { | |
1262 | cmd_tbl_t *cmdtp; | |
1263 | char cmdbuf[CFG_CBSIZE]; /* working copy of cmd */ | |
1264 | char *token; /* start of token in cmdbuf */ | |
1265 | char *sep; /* end of token (separator) in cmdbuf */ | |
1266 | char finaltoken[CFG_CBSIZE]; | |
1267 | char *str = cmdbuf; | |
1268 | char *argv[CFG_MAXARGS + 1]; /* NULL terminated */ | |
f07771cc | 1269 | int argc, inquotes; |
c609719b | 1270 | int repeatable = 1; |
f07771cc | 1271 | int rc = 0; |
c609719b WD |
1272 | |
1273 | #ifdef DEBUG_PARSER | |
1274 | printf ("[RUN_COMMAND] cmd[%p]=\"", cmd); | |
1275 | puts (cmd ? cmd : "NULL"); /* use puts - string may be loooong */ | |
1276 | puts ("\"\n"); | |
1277 | #endif | |
1278 | ||
1279 | clear_ctrlc(); /* forget any previous Control C */ | |
1280 | ||
1281 | if (!cmd || !*cmd) { | |
1282 | return -1; /* empty command */ | |
1283 | } | |
1284 | ||
1285 | if (strlen(cmd) >= CFG_CBSIZE) { | |
1286 | puts ("## Command too long!\n"); | |
1287 | return -1; | |
1288 | } | |
1289 | ||
1290 | strcpy (cmdbuf, cmd); | |
1291 | ||
1292 | /* Process separators and check for invalid | |
1293 | * repeatable commands | |
1294 | */ | |
1295 | ||
1296 | #ifdef DEBUG_PARSER | |
1297 | printf ("[PROCESS_SEPARATORS] %s\n", cmd); | |
1298 | #endif | |
1299 | while (*str) { | |
1300 | ||
1301 | /* | |
1302 | * Find separator, or string end | |
1303 | * Allow simple escape of ';' by writing "\;" | |
1304 | */ | |
a25f862b WD |
1305 | for (inquotes = 0, sep = str; *sep; sep++) { |
1306 | if ((*sep=='\'') && | |
1307 | (*(sep-1) != '\\')) | |
1308 | inquotes=!inquotes; | |
1309 | ||
1310 | if (!inquotes && | |
1311 | (*sep == ';') && /* separator */ | |
c609719b WD |
1312 | ( sep != str) && /* past string start */ |
1313 | (*(sep-1) != '\\')) /* and NOT escaped */ | |
1314 | break; | |
1315 | } | |
1316 | ||
1317 | /* | |
1318 | * Limit the token to data between separators | |
1319 | */ | |
1320 | token = str; | |
1321 | if (*sep) { | |
1322 | str = sep + 1; /* start of command for next pass */ | |
1323 | *sep = '\0'; | |
1324 | } | |
1325 | else | |
1326 | str = sep; /* no more commands for next pass */ | |
1327 | #ifdef DEBUG_PARSER | |
1328 | printf ("token: \"%s\"\n", token); | |
1329 | #endif | |
1330 | ||
1331 | /* find macros in this token and replace them */ | |
1332 | process_macros (token, finaltoken); | |
1333 | ||
1334 | /* Extract arguments */ | |
1264b405 WD |
1335 | if ((argc = parse_line (finaltoken, argv)) == 0) { |
1336 | rc = -1; /* no command at all */ | |
1337 | continue; | |
1338 | } | |
c609719b WD |
1339 | |
1340 | /* Look up command in command table */ | |
1341 | if ((cmdtp = find_cmd(argv[0])) == NULL) { | |
1342 | printf ("Unknown command '%s' - try 'help'\n", argv[0]); | |
f07771cc WD |
1343 | rc = -1; /* give up after bad command */ |
1344 | continue; | |
c609719b WD |
1345 | } |
1346 | ||
1347 | /* found - check max args */ | |
1348 | if (argc > cmdtp->maxargs) { | |
1349 | printf ("Usage:\n%s\n", cmdtp->usage); | |
f07771cc WD |
1350 | rc = -1; |
1351 | continue; | |
c609719b WD |
1352 | } |
1353 | ||
c3517f91 | 1354 | #if defined(CONFIG_CMD_BOOTD) |
c609719b WD |
1355 | /* avoid "bootd" recursion */ |
1356 | if (cmdtp->cmd == do_bootd) { | |
1357 | #ifdef DEBUG_PARSER | |
1358 | printf ("[%s]\n", finaltoken); | |
1359 | #endif | |
1360 | if (flag & CMD_FLAG_BOOTD) { | |
4b9206ed | 1361 | puts ("'bootd' recursion detected\n"); |
f07771cc WD |
1362 | rc = -1; |
1363 | continue; | |
1264b405 | 1364 | } else { |
c609719b | 1365 | flag |= CMD_FLAG_BOOTD; |
1264b405 | 1366 | } |
c609719b | 1367 | } |
90253178 | 1368 | #endif |
c609719b WD |
1369 | |
1370 | /* OK - call function to do the command */ | |
1371 | if ((cmdtp->cmd) (cmdtp, flag, argc, argv) != 0) { | |
f07771cc | 1372 | rc = -1; |
c609719b WD |
1373 | } |
1374 | ||
1375 | repeatable &= cmdtp->repeatable; | |
1376 | ||
1377 | /* Did the user stop this? */ | |
1378 | if (had_ctrlc ()) | |
5afb2020 | 1379 | return -1; /* if stopped then not repeatable */ |
c609719b WD |
1380 | } |
1381 | ||
f07771cc | 1382 | return rc ? rc : repeatable; |
c609719b WD |
1383 | } |
1384 | ||
1385 | /****************************************************************************/ | |
1386 | ||
c3517f91 | 1387 | #if defined(CONFIG_CMD_RUN) |
c609719b WD |
1388 | int do_run (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) |
1389 | { | |
1390 | int i; | |
c609719b WD |
1391 | |
1392 | if (argc < 2) { | |
1393 | printf ("Usage:\n%s\n", cmdtp->usage); | |
1394 | return 1; | |
1395 | } | |
1396 | ||
1397 | for (i=1; i<argc; ++i) { | |
3e38691e WD |
1398 | char *arg; |
1399 | ||
1400 | if ((arg = getenv (argv[i])) == NULL) { | |
1401 | printf ("## Error: \"%s\" not defined\n", argv[i]); | |
1402 | return 1; | |
1403 | } | |
c609719b | 1404 | #ifndef CFG_HUSH_PARSER |
3e38691e WD |
1405 | if (run_command (arg, flag) == -1) |
1406 | return 1; | |
c609719b | 1407 | #else |
3e38691e | 1408 | if (parse_string_outer(arg, |
7aa78614 | 1409 | FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) != 0) |
3e38691e | 1410 | return 1; |
c609719b WD |
1411 | #endif |
1412 | } | |
3e38691e | 1413 | return 0; |
c609719b | 1414 | } |
90253178 | 1415 | #endif |