]>
Commit | Line | Data |
---|---|---|
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 | 36 | |
6d0f6bcf | 37 | #ifdef CONFIG_SYS_HUSH_PARSER |
c609719b WD |
38 | #include <hush.h> |
39 | #endif | |
40 | ||
bdccc4fe WD |
41 | #include <post.h> |
42 | ||
597f6c26 | 43 | #if defined(CONFIG_SILENT_CONSOLE) || defined(CONFIG_POST) || defined(CONFIG_CMDLINE_EDITING) |
d87080b7 WD |
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) {} | |
5e2c08c3 | 51 | void show_boot_progress (int val) __attribute__((weak, alias("__show_boot_progress"))); |
fad63407 | 52 | |
4bae9090 BS |
53 | #if defined(CONFIG_UPDATE_TFTP) |
54 | void update_tftp (void); | |
55 | #endif /* CONFIG_UPDATE_TFTP */ | |
8bde7f77 | 56 | |
c609719b WD |
57 | #define MAX_DELAY_STOP_STR 32 |
58 | ||
c609719b WD |
59 | #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0) |
60 | static int abortboot(int); | |
61 | #endif | |
62 | ||
63 | #undef DEBUG_PARSER | |
64 | ||
6475b9f9 | 65 | char console_buffer[CONFIG_SYS_CBSIZE + 1]; /* console I/O buffer */ |
c609719b | 66 | |
3ca9122f | 67 | static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen); |
82359aec MF |
68 | static const char erase_seq[] = "\b \b"; /* erase sequence */ |
69 | static const char tab_seq[] = " "; /* used to expand TABs */ | |
c609719b WD |
70 | |
71 | #ifdef CONFIG_BOOT_RETRY_TIME | |
72 | static uint64_t endtime = 0; /* must be set, default is instant timeout */ | |
73 | static int retry_time = -1; /* -1 so can call readline before main_loop */ | |
74 | #endif | |
75 | ||
76 | #define endtick(seconds) (get_ticks() + (uint64_t)(seconds) * get_tbclk()) | |
77 | ||
78 | #ifndef CONFIG_BOOT_RETRY_MIN | |
79 | #define CONFIG_BOOT_RETRY_MIN CONFIG_BOOT_RETRY_TIME | |
80 | #endif | |
81 | ||
82 | #ifdef CONFIG_MODEM_SUPPORT | |
83 | int do_mdm_init = 0; | |
84 | extern void mdm_init(void); /* defined in board.c */ | |
85 | #endif | |
86 | ||
87 | /*************************************************************************** | |
88 | * Watch for 'delay' seconds for autoboot stop or autoboot delay string. | |
89 | * returns: 0 - no key string, allow autoboot | |
90 | * 1 - got key string, abort | |
91 | */ | |
92 | #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0) | |
93 | # if defined(CONFIG_AUTOBOOT_KEYED) | |
94 | static __inline__ int abortboot(int bootdelay) | |
95 | { | |
96 | int abort = 0; | |
97 | uint64_t etime = endtick(bootdelay); | |
19973b6a | 98 | struct { |
c609719b WD |
99 | char* str; |
100 | u_int len; | |
101 | int retry; | |
102 | } | |
19973b6a | 103 | delaykey [] = { |
c609719b WD |
104 | { str: getenv ("bootdelaykey"), retry: 1 }, |
105 | { str: getenv ("bootdelaykey2"), retry: 1 }, | |
106 | { str: getenv ("bootstopkey"), retry: 0 }, | |
107 | { str: getenv ("bootstopkey2"), retry: 0 }, | |
108 | }; | |
109 | ||
110 | char presskey [MAX_DELAY_STOP_STR]; | |
111 | u_int presskey_len = 0; | |
112 | u_int presskey_max = 0; | |
113 | u_int i; | |
114 | ||
115 | # ifdef CONFIG_AUTOBOOT_PROMPT | |
f2302d44 | 116 | printf(CONFIG_AUTOBOOT_PROMPT); |
c609719b WD |
117 | # endif |
118 | ||
119 | # ifdef CONFIG_AUTOBOOT_DELAY_STR | |
120 | if (delaykey[0].str == NULL) | |
121 | delaykey[0].str = CONFIG_AUTOBOOT_DELAY_STR; | |
122 | # endif | |
123 | # ifdef CONFIG_AUTOBOOT_DELAY_STR2 | |
124 | if (delaykey[1].str == NULL) | |
125 | delaykey[1].str = CONFIG_AUTOBOOT_DELAY_STR2; | |
126 | # endif | |
127 | # ifdef CONFIG_AUTOBOOT_STOP_STR | |
128 | if (delaykey[2].str == NULL) | |
129 | delaykey[2].str = CONFIG_AUTOBOOT_STOP_STR; | |
130 | # endif | |
131 | # ifdef CONFIG_AUTOBOOT_STOP_STR2 | |
132 | if (delaykey[3].str == NULL) | |
133 | delaykey[3].str = CONFIG_AUTOBOOT_STOP_STR2; | |
134 | # endif | |
135 | ||
136 | for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i ++) { | |
137 | delaykey[i].len = delaykey[i].str == NULL ? | |
138 | 0 : strlen (delaykey[i].str); | |
139 | delaykey[i].len = delaykey[i].len > MAX_DELAY_STOP_STR ? | |
140 | MAX_DELAY_STOP_STR : delaykey[i].len; | |
141 | ||
142 | presskey_max = presskey_max > delaykey[i].len ? | |
143 | presskey_max : delaykey[i].len; | |
144 | ||
145 | # if DEBUG_BOOTKEYS | |
146 | printf("%s key:<%s>\n", | |
147 | delaykey[i].retry ? "delay" : "stop", | |
148 | delaykey[i].str ? delaykey[i].str : "NULL"); | |
149 | # endif | |
150 | } | |
151 | ||
152 | /* In order to keep up with incoming data, check timeout only | |
153 | * when catch up. | |
154 | */ | |
c3284b03 PK |
155 | do { |
156 | if (tstc()) { | |
157 | if (presskey_len < presskey_max) { | |
158 | presskey [presskey_len ++] = getc(); | |
159 | } | |
160 | else { | |
161 | for (i = 0; i < presskey_max - 1; i ++) | |
162 | presskey [i] = presskey [i + 1]; | |
163 | ||
164 | presskey [i] = getc(); | |
165 | } | |
166 | } | |
167 | ||
c609719b WD |
168 | for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i ++) { |
169 | if (delaykey[i].len > 0 && | |
170 | presskey_len >= delaykey[i].len && | |
171 | memcmp (presskey + presskey_len - delaykey[i].len, | |
8bde7f77 | 172 | delaykey[i].str, |
c609719b WD |
173 | delaykey[i].len) == 0) { |
174 | # if DEBUG_BOOTKEYS | |
175 | printf("got %skey\n", | |
176 | delaykey[i].retry ? "delay" : "stop"); | |
177 | # endif | |
178 | ||
179 | # ifdef CONFIG_BOOT_RETRY_TIME | |
180 | /* don't retry auto boot */ | |
181 | if (! delaykey[i].retry) | |
182 | retry_time = -1; | |
183 | # endif | |
184 | abort = 1; | |
185 | } | |
186 | } | |
c3284b03 | 187 | } while (!abort && get_ticks() <= etime); |
c609719b | 188 | |
c609719b WD |
189 | # if DEBUG_BOOTKEYS |
190 | if (!abort) | |
ada4d400 | 191 | puts("key timeout\n"); |
c609719b WD |
192 | # endif |
193 | ||
8cb8143e | 194 | #ifdef CONFIG_SILENT_CONSOLE |
4ec5bd55 LM |
195 | if (abort) |
196 | gd->flags &= ~GD_FLG_SILENT; | |
8cb8143e | 197 | #endif |
198 | ||
c609719b WD |
199 | return abort; |
200 | } | |
201 | ||
202 | # else /* !defined(CONFIG_AUTOBOOT_KEYED) */ | |
203 | ||
c7de829c WD |
204 | #ifdef CONFIG_MENUKEY |
205 | static int menukey = 0; | |
206 | #endif | |
207 | ||
c609719b WD |
208 | static __inline__ int abortboot(int bootdelay) |
209 | { | |
210 | int abort = 0; | |
211 | ||
c7de829c | 212 | #ifdef CONFIG_MENUPROMPT |
f2302d44 | 213 | printf(CONFIG_MENUPROMPT); |
c7de829c | 214 | #else |
c609719b | 215 | printf("Hit any key to stop autoboot: %2d ", bootdelay); |
c7de829c | 216 | #endif |
c609719b WD |
217 | |
218 | #if defined CONFIG_ZERO_BOOTDELAY_CHECK | |
8bde7f77 WD |
219 | /* |
220 | * Check if key already pressed | |
221 | * Don't check if bootdelay < 0 | |
222 | */ | |
c609719b WD |
223 | if (bootdelay >= 0) { |
224 | if (tstc()) { /* we got a key press */ | |
225 | (void) getc(); /* consume input */ | |
4b9206ed | 226 | puts ("\b\b\b 0"); |
4ec5bd55 | 227 | abort = 1; /* don't auto boot */ |
c609719b | 228 | } |
8bde7f77 | 229 | } |
c609719b WD |
230 | #endif |
231 | ||
f72da340 | 232 | while ((bootdelay > 0) && (!abort)) { |
c609719b WD |
233 | int i; |
234 | ||
235 | --bootdelay; | |
236 | /* delay 100 * 10ms */ | |
237 | for (i=0; !abort && i<100; ++i) { | |
238 | if (tstc()) { /* we got a key press */ | |
239 | abort = 1; /* don't auto boot */ | |
240 | bootdelay = 0; /* no more delay */ | |
c7de829c WD |
241 | # ifdef CONFIG_MENUKEY |
242 | menukey = getc(); | |
243 | # else | |
c609719b | 244 | (void) getc(); /* consume input */ |
c7de829c | 245 | # endif |
c609719b WD |
246 | break; |
247 | } | |
ada4d400 | 248 | udelay(10000); |
c609719b WD |
249 | } |
250 | ||
ada4d400 | 251 | printf("\b\b\b%2d ", bootdelay); |
c609719b WD |
252 | } |
253 | ||
ada4d400 | 254 | putc('\n'); |
c609719b | 255 | |
f72da340 | 256 | #ifdef CONFIG_SILENT_CONSOLE |
4ec5bd55 LM |
257 | if (abort) |
258 | gd->flags &= ~GD_FLG_SILENT; | |
f72da340 WD |
259 | #endif |
260 | ||
c609719b WD |
261 | return abort; |
262 | } | |
263 | # endif /* CONFIG_AUTOBOOT_KEYED */ | |
264 | #endif /* CONFIG_BOOTDELAY >= 0 */ | |
265 | ||
266 | /****************************************************************************/ | |
267 | ||
268 | void main_loop (void) | |
269 | { | |
6d0f6bcf JCPV |
270 | #ifndef CONFIG_SYS_HUSH_PARSER |
271 | static char lastcommand[CONFIG_SYS_CBSIZE] = { 0, }; | |
c609719b WD |
272 | int len; |
273 | int rc = 1; | |
274 | int flag; | |
275 | #endif | |
276 | ||
277 | #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0) | |
278 | char *s; | |
279 | int bootdelay; | |
280 | #endif | |
281 | #ifdef CONFIG_PREBOOT | |
282 | char *p; | |
283 | #endif | |
bdccc4fe WD |
284 | #ifdef CONFIG_BOOTCOUNT_LIMIT |
285 | unsigned long bootcount = 0; | |
286 | unsigned long bootlimit = 0; | |
287 | char *bcs; | |
288 | char bcs_set[16]; | |
289 | #endif /* CONFIG_BOOTCOUNT_LIMIT */ | |
c609719b WD |
290 | |
291 | #if defined(CONFIG_VFD) && defined(VFD_TEST_LOGO) | |
292 | ulong bmp = 0; /* default bitmap */ | |
293 | extern int trab_vfd (ulong bitmap); | |
294 | ||
295 | #ifdef CONFIG_MODEM_SUPPORT | |
296 | if (do_mdm_init) | |
297 | bmp = 1; /* alternate bitmap */ | |
298 | #endif | |
299 | trab_vfd (bmp); | |
300 | #endif /* CONFIG_VFD && VFD_TEST_LOGO */ | |
301 | ||
bdccc4fe WD |
302 | #ifdef CONFIG_BOOTCOUNT_LIMIT |
303 | bootcount = bootcount_load(); | |
304 | bootcount++; | |
305 | bootcount_store (bootcount); | |
306 | sprintf (bcs_set, "%lu", bootcount); | |
307 | setenv ("bootcount", bcs_set); | |
308 | bcs = getenv ("bootlimit"); | |
309 | bootlimit = bcs ? simple_strtoul (bcs, NULL, 10) : 0; | |
310 | #endif /* CONFIG_BOOTCOUNT_LIMIT */ | |
311 | ||
c609719b WD |
312 | #ifdef CONFIG_MODEM_SUPPORT |
313 | debug ("DEBUG: main_loop: do_mdm_init=%d\n", do_mdm_init); | |
314 | if (do_mdm_init) { | |
77ddac94 | 315 | char *str = strdup(getenv("mdm_cmd")); |
c609719b WD |
316 | setenv ("preboot", str); /* set or delete definition */ |
317 | if (str != NULL) | |
318 | free (str); | |
319 | mdm_init(); /* wait for modem connection */ | |
320 | } | |
321 | #endif /* CONFIG_MODEM_SUPPORT */ | |
322 | ||
0587597c SR |
323 | #ifdef CONFIG_VERSION_VARIABLE |
324 | { | |
325 | extern char version_string[]; | |
0587597c | 326 | |
155cb010 | 327 | setenv ("ver", version_string); /* set version variable */ |
0587597c SR |
328 | } |
329 | #endif /* CONFIG_VERSION_VARIABLE */ | |
330 | ||
6d0f6bcf | 331 | #ifdef CONFIG_SYS_HUSH_PARSER |
c609719b WD |
332 | u_boot_hush_start (); |
333 | #endif | |
334 | ||
81473f67 HS |
335 | #if defined(CONFIG_HUSH_INIT_VAR) |
336 | hush_init_var (); | |
337 | #endif | |
338 | ||
c609719b WD |
339 | #ifdef CONFIG_PREBOOT |
340 | if ((p = getenv ("preboot")) != NULL) { | |
341 | # ifdef CONFIG_AUTOBOOT_KEYED | |
342 | int prev = disable_ctrlc(1); /* disable Control C checking */ | |
343 | # endif | |
344 | ||
6d0f6bcf | 345 | # ifndef CONFIG_SYS_HUSH_PARSER |
c609719b WD |
346 | run_command (p, 0); |
347 | # else | |
348 | parse_string_outer(p, FLAG_PARSE_SEMICOLON | | |
349 | FLAG_EXIT_FROM_LOOP); | |
350 | # endif | |
351 | ||
352 | # ifdef CONFIG_AUTOBOOT_KEYED | |
353 | disable_ctrlc(prev); /* restore Control C checking */ | |
354 | # endif | |
355 | } | |
356 | #endif /* CONFIG_PREBOOT */ | |
357 | ||
143cd21f WD |
358 | #if defined(CONFIG_UPDATE_TFTP) |
359 | update_tftp (); | |
360 | #endif /* CONFIG_UPDATE_TFTP */ | |
361 | ||
c609719b WD |
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 | ||
b428f6a8 YT |
372 | #ifdef CONFIG_POST |
373 | if (gd->flags & GD_FLG_POSTFAIL) { | |
374 | s = getenv("failbootcmd"); | |
375 | } | |
376 | else | |
377 | #endif /* CONFIG_POST */ | |
bdccc4fe WD |
378 | #ifdef CONFIG_BOOTCOUNT_LIMIT |
379 | if (bootlimit && (bootcount > bootlimit)) { | |
380 | printf ("Warning: Bootlimit (%u) exceeded. Using altbootcmd.\n", | |
381 | (unsigned)bootlimit); | |
382 | s = getenv ("altbootcmd"); | |
383 | } | |
384 | else | |
385 | #endif /* CONFIG_BOOTCOUNT_LIMIT */ | |
386 | s = getenv ("bootcmd"); | |
a6c7ad2f WD |
387 | |
388 | debug ("### main_loop: bootcmd=\"%s\"\n", s ? s : "<UNDEFINED>"); | |
389 | ||
c609719b WD |
390 | if (bootdelay >= 0 && s && !abortboot (bootdelay)) { |
391 | # ifdef CONFIG_AUTOBOOT_KEYED | |
392 | int prev = disable_ctrlc(1); /* disable Control C checking */ | |
393 | # endif | |
394 | ||
6d0f6bcf | 395 | # ifndef CONFIG_SYS_HUSH_PARSER |
c609719b WD |
396 | run_command (s, 0); |
397 | # else | |
398 | parse_string_outer(s, FLAG_PARSE_SEMICOLON | | |
399 | FLAG_EXIT_FROM_LOOP); | |
400 | # endif | |
401 | ||
402 | # ifdef CONFIG_AUTOBOOT_KEYED | |
403 | disable_ctrlc(prev); /* restore Control C checking */ | |
404 | # endif | |
405 | } | |
c7de829c WD |
406 | |
407 | # ifdef CONFIG_MENUKEY | |
a6c7ad2f | 408 | if (menukey == CONFIG_MENUKEY) { |
c7de829c | 409 | s = getenv("menucmd"); |
a6c7ad2f | 410 | if (s) { |
6d0f6bcf | 411 | # ifndef CONFIG_SYS_HUSH_PARSER |
6225c5db | 412 | run_command (s, 0); |
c7de829c WD |
413 | # else |
414 | parse_string_outer(s, FLAG_PARSE_SEMICOLON | | |
415 | FLAG_EXIT_FROM_LOOP); | |
416 | # endif | |
417 | } | |
418 | } | |
419 | #endif /* CONFIG_MENUKEY */ | |
953b7e62 | 420 | #endif /* CONFIG_BOOTDELAY */ |
c7de829c | 421 | |
c609719b WD |
422 | /* |
423 | * Main Loop for Monitor Command Processing | |
424 | */ | |
6d0f6bcf | 425 | #ifdef CONFIG_SYS_HUSH_PARSER |
c609719b WD |
426 | parse_file_outer(); |
427 | /* This point is never reached */ | |
428 | for (;;); | |
429 | #else | |
430 | for (;;) { | |
431 | #ifdef CONFIG_BOOT_RETRY_TIME | |
432 | if (rc >= 0) { | |
433 | /* Saw enough of a valid command to | |
434 | * restart the timeout. | |
435 | */ | |
436 | reset_cmd_timeout(); | |
437 | } | |
438 | #endif | |
6d0f6bcf | 439 | len = readline (CONFIG_SYS_PROMPT); |
c609719b WD |
440 | |
441 | flag = 0; /* assume no special flags for now */ | |
442 | if (len > 0) | |
443 | strcpy (lastcommand, console_buffer); | |
444 | else if (len == 0) | |
445 | flag |= CMD_FLAG_REPEAT; | |
446 | #ifdef CONFIG_BOOT_RETRY_TIME | |
447 | else if (len == -2) { | |
448 | /* -2 means timed out, retry autoboot | |
449 | */ | |
4b9206ed | 450 | puts ("\nTimed out waiting for command\n"); |
c609719b WD |
451 | # ifdef CONFIG_RESET_TO_RETRY |
452 | /* Reinit board to run initialization code again */ | |
453 | do_reset (NULL, 0, 0, NULL); | |
454 | # else | |
455 | return; /* retry autoboot */ | |
456 | # endif | |
457 | } | |
458 | #endif | |
459 | ||
460 | if (len == -1) | |
4b9206ed | 461 | puts ("<INTERRUPT>\n"); |
c609719b WD |
462 | else |
463 | rc = run_command (lastcommand, flag); | |
464 | ||
465 | if (rc <= 0) { | |
466 | /* invalid command or not repeatable, forget it */ | |
467 | lastcommand[0] = 0; | |
468 | } | |
469 | } | |
6d0f6bcf | 470 | #endif /*CONFIG_SYS_HUSH_PARSER*/ |
c609719b WD |
471 | } |
472 | ||
6dd652fa WD |
473 | #ifdef CONFIG_BOOT_RETRY_TIME |
474 | /*************************************************************************** | |
19973b6a | 475 | * initialize command line timeout |
6dd652fa WD |
476 | */ |
477 | void init_cmd_timeout(void) | |
478 | { | |
479 | char *s = getenv ("bootretry"); | |
480 | ||
481 | if (s != NULL) | |
b028f715 | 482 | retry_time = (int)simple_strtol(s, NULL, 10); |
6dd652fa WD |
483 | else |
484 | retry_time = CONFIG_BOOT_RETRY_TIME; | |
485 | ||
486 | if (retry_time >= 0 && retry_time < CONFIG_BOOT_RETRY_MIN) | |
487 | retry_time = CONFIG_BOOT_RETRY_MIN; | |
488 | } | |
489 | ||
c609719b WD |
490 | /*************************************************************************** |
491 | * reset command line timeout to retry_time seconds | |
492 | */ | |
c609719b WD |
493 | void reset_cmd_timeout(void) |
494 | { | |
495 | endtime = endtick(retry_time); | |
496 | } | |
497 | #endif | |
498 | ||
501090aa WD |
499 | #ifdef CONFIG_CMDLINE_EDITING |
500 | ||
501 | /* | |
502 | * cmdline-editing related codes from vivi. | |
503 | * Author: Janghoon Lyu <nandy@mizi.com> | |
504 | */ | |
505 | ||
501090aa | 506 | #define putnstr(str,n) do { \ |
dc4b0b38 | 507 | printf ("%.*s", (int)n, str); \ |
501090aa | 508 | } while (0) |
501090aa WD |
509 | |
510 | #define CTL_CH(c) ((c) - 'a' + 1) | |
501090aa WD |
511 | #define CTL_BACKSPACE ('\b') |
512 | #define DEL ((char)255) | |
513 | #define DEL7 ((char)127) | |
514 | #define CREAD_HIST_CHAR ('!') | |
515 | ||
516 | #define getcmd_putch(ch) putc(ch) | |
517 | #define getcmd_getch() getc() | |
518 | #define getcmd_cbeep() getcmd_putch('\a') | |
519 | ||
520 | #define HIST_MAX 20 | |
8804ae3b | 521 | #define HIST_SIZE CONFIG_SYS_CBSIZE |
501090aa WD |
522 | |
523 | static int hist_max = 0; | |
524 | static int hist_add_idx = 0; | |
525 | static int hist_cur = -1; | |
526 | unsigned hist_num = 0; | |
527 | ||
528 | char* hist_list[HIST_MAX]; | |
6475b9f9 | 529 | char hist_lines[HIST_MAX][HIST_SIZE + 1]; /* Save room for NULL */ |
501090aa WD |
530 | |
531 | #define add_idx_minus_one() ((hist_add_idx == 0) ? hist_max : hist_add_idx-1) | |
532 | ||
533 | static void hist_init(void) | |
534 | { | |
535 | int i; | |
536 | ||
537 | hist_max = 0; | |
538 | hist_add_idx = 0; | |
539 | hist_cur = -1; | |
540 | hist_num = 0; | |
541 | ||
542 | for (i = 0; i < HIST_MAX; i++) { | |
543 | hist_list[i] = hist_lines[i]; | |
544 | hist_list[i][0] = '\0'; | |
545 | } | |
546 | } | |
547 | ||
548 | static void cread_add_to_hist(char *line) | |
549 | { | |
550 | strcpy(hist_list[hist_add_idx], line); | |
551 | ||
552 | if (++hist_add_idx >= HIST_MAX) | |
553 | hist_add_idx = 0; | |
554 | ||
555 | if (hist_add_idx > hist_max) | |
556 | hist_max = hist_add_idx; | |
557 | ||
558 | hist_num++; | |
559 | } | |
560 | ||
561 | static char* hist_prev(void) | |
562 | { | |
563 | char *ret; | |
564 | int old_cur; | |
565 | ||
566 | if (hist_cur < 0) | |
567 | return NULL; | |
568 | ||
569 | old_cur = hist_cur; | |
570 | if (--hist_cur < 0) | |
571 | hist_cur = hist_max; | |
572 | ||
573 | if (hist_cur == hist_add_idx) { | |
574 | hist_cur = old_cur; | |
575 | ret = NULL; | |
576 | } else | |
577 | ret = hist_list[hist_cur]; | |
578 | ||
579 | return (ret); | |
580 | } | |
581 | ||
582 | static char* hist_next(void) | |
583 | { | |
584 | char *ret; | |
585 | ||
586 | if (hist_cur < 0) | |
587 | return NULL; | |
588 | ||
589 | if (hist_cur == hist_add_idx) | |
590 | return NULL; | |
591 | ||
592 | if (++hist_cur > hist_max) | |
593 | hist_cur = 0; | |
594 | ||
595 | if (hist_cur == hist_add_idx) { | |
596 | ret = ""; | |
597 | } else | |
598 | ret = hist_list[hist_cur]; | |
599 | ||
600 | return (ret); | |
601 | } | |
602 | ||
3ca9122f | 603 | #ifndef CONFIG_CMDLINE_EDITING |
501090aa WD |
604 | static void cread_print_hist_list(void) |
605 | { | |
606 | int i; | |
607 | unsigned long n; | |
608 | ||
609 | n = hist_num - hist_max; | |
610 | ||
611 | i = hist_add_idx + 1; | |
612 | while (1) { | |
613 | if (i > hist_max) | |
614 | i = 0; | |
615 | if (i == hist_add_idx) | |
616 | break; | |
617 | printf("%s\n", hist_list[i]); | |
618 | n++; | |
619 | i++; | |
620 | } | |
621 | } | |
3ca9122f | 622 | #endif /* CONFIG_CMDLINE_EDITING */ |
501090aa WD |
623 | |
624 | #define BEGINNING_OF_LINE() { \ | |
625 | while (num) { \ | |
626 | getcmd_putch(CTL_BACKSPACE); \ | |
627 | num--; \ | |
628 | } \ | |
629 | } | |
630 | ||
631 | #define ERASE_TO_EOL() { \ | |
632 | if (num < eol_num) { \ | |
8faba489 MF |
633 | printf("%*s", (int)(eol_num - num), ""); \ |
634 | do { \ | |
501090aa | 635 | getcmd_putch(CTL_BACKSPACE); \ |
8faba489 | 636 | } while (--eol_num > num); \ |
501090aa WD |
637 | } \ |
638 | } | |
639 | ||
640 | #define REFRESH_TO_EOL() { \ | |
641 | if (num < eol_num) { \ | |
642 | wlen = eol_num - num; \ | |
643 | putnstr(buf + num, wlen); \ | |
644 | num = eol_num; \ | |
645 | } \ | |
646 | } | |
647 | ||
648 | static void cread_add_char(char ichar, int insert, unsigned long *num, | |
649 | unsigned long *eol_num, char *buf, unsigned long len) | |
650 | { | |
651 | unsigned long wlen; | |
652 | ||
653 | /* room ??? */ | |
654 | if (insert || *num == *eol_num) { | |
655 | if (*eol_num > len - 1) { | |
656 | getcmd_cbeep(); | |
657 | return; | |
658 | } | |
659 | (*eol_num)++; | |
660 | } | |
661 | ||
662 | if (insert) { | |
663 | wlen = *eol_num - *num; | |
664 | if (wlen > 1) { | |
665 | memmove(&buf[*num+1], &buf[*num], wlen-1); | |
666 | } | |
667 | ||
668 | buf[*num] = ichar; | |
669 | putnstr(buf + *num, wlen); | |
670 | (*num)++; | |
671 | while (--wlen) { | |
672 | getcmd_putch(CTL_BACKSPACE); | |
673 | } | |
674 | } else { | |
675 | /* echo the character */ | |
676 | wlen = 1; | |
677 | buf[*num] = ichar; | |
678 | putnstr(buf + *num, wlen); | |
679 | (*num)++; | |
680 | } | |
681 | } | |
682 | ||
683 | static void cread_add_str(char *str, int strsize, int insert, unsigned long *num, | |
684 | unsigned long *eol_num, char *buf, unsigned long len) | |
685 | { | |
686 | while (strsize--) { | |
687 | cread_add_char(*str, insert, num, eol_num, buf, len); | |
688 | str++; | |
689 | } | |
690 | } | |
691 | ||
23d0baf9 | 692 | static int cread_line(const char *const prompt, char *buf, unsigned int *len) |
501090aa WD |
693 | { |
694 | unsigned long num = 0; | |
695 | unsigned long eol_num = 0; | |
501090aa WD |
696 | unsigned long wlen; |
697 | char ichar; | |
698 | int insert = 1; | |
699 | int esc_len = 0; | |
501090aa | 700 | char esc_save[8]; |
ecc5500e PT |
701 | int init_len = strlen(buf); |
702 | ||
703 | if (init_len) | |
704 | cread_add_str(buf, init_len, 1, &num, &eol_num, buf, *len); | |
501090aa WD |
705 | |
706 | while (1) { | |
00ac50e3 AE |
707 | #ifdef CONFIG_BOOT_RETRY_TIME |
708 | while (!tstc()) { /* while no incoming data */ | |
709 | if (retry_time >= 0 && get_ticks() > endtime) | |
710 | return (-2); /* timed out */ | |
30dc165a | 711 | WATCHDOG_RESET(); |
00ac50e3 AE |
712 | } |
713 | #endif | |
714 | ||
501090aa WD |
715 | ichar = getcmd_getch(); |
716 | ||
717 | if ((ichar == '\n') || (ichar == '\r')) { | |
dd9f06f0 | 718 | putc('\n'); |
501090aa WD |
719 | break; |
720 | } | |
721 | ||
722 | /* | |
723 | * handle standard linux xterm esc sequences for arrow key, etc. | |
724 | */ | |
725 | if (esc_len != 0) { | |
726 | if (esc_len == 1) { | |
727 | if (ichar == '[') { | |
728 | esc_save[esc_len] = ichar; | |
729 | esc_len = 2; | |
730 | } else { | |
731 | cread_add_str(esc_save, esc_len, insert, | |
732 | &num, &eol_num, buf, *len); | |
733 | esc_len = 0; | |
734 | } | |
735 | continue; | |
736 | } | |
737 | ||
738 | switch (ichar) { | |
739 | ||
740 | case 'D': /* <- key */ | |
741 | ichar = CTL_CH('b'); | |
742 | esc_len = 0; | |
743 | break; | |
744 | case 'C': /* -> key */ | |
745 | ichar = CTL_CH('f'); | |
746 | esc_len = 0; | |
747 | break; /* pass off to ^F handler */ | |
748 | case 'H': /* Home key */ | |
749 | ichar = CTL_CH('a'); | |
750 | esc_len = 0; | |
751 | break; /* pass off to ^A handler */ | |
752 | case 'A': /* up arrow */ | |
753 | ichar = CTL_CH('p'); | |
754 | esc_len = 0; | |
755 | break; /* pass off to ^P handler */ | |
756 | case 'B': /* down arrow */ | |
757 | ichar = CTL_CH('n'); | |
758 | esc_len = 0; | |
759 | break; /* pass off to ^N handler */ | |
760 | default: | |
761 | esc_save[esc_len++] = ichar; | |
762 | cread_add_str(esc_save, esc_len, insert, | |
763 | &num, &eol_num, buf, *len); | |
764 | esc_len = 0; | |
765 | continue; | |
766 | } | |
767 | } | |
768 | ||
769 | switch (ichar) { | |
770 | case 0x1b: | |
771 | if (esc_len == 0) { | |
772 | esc_save[esc_len] = ichar; | |
773 | esc_len = 1; | |
774 | } else { | |
dd9f06f0 | 775 | puts("impossible condition #876\n"); |
501090aa WD |
776 | esc_len = 0; |
777 | } | |
778 | break; | |
779 | ||
780 | case CTL_CH('a'): | |
781 | BEGINNING_OF_LINE(); | |
782 | break; | |
783 | case CTL_CH('c'): /* ^C - break */ | |
784 | *buf = '\0'; /* discard input */ | |
785 | return (-1); | |
786 | case CTL_CH('f'): | |
787 | if (num < eol_num) { | |
788 | getcmd_putch(buf[num]); | |
789 | num++; | |
790 | } | |
791 | break; | |
792 | case CTL_CH('b'): | |
793 | if (num) { | |
794 | getcmd_putch(CTL_BACKSPACE); | |
795 | num--; | |
796 | } | |
797 | break; | |
798 | case CTL_CH('d'): | |
799 | if (num < eol_num) { | |
800 | wlen = eol_num - num - 1; | |
801 | if (wlen) { | |
802 | memmove(&buf[num], &buf[num+1], wlen); | |
803 | putnstr(buf + num, wlen); | |
804 | } | |
805 | ||
806 | getcmd_putch(' '); | |
807 | do { | |
808 | getcmd_putch(CTL_BACKSPACE); | |
809 | } while (wlen--); | |
810 | eol_num--; | |
811 | } | |
812 | break; | |
813 | case CTL_CH('k'): | |
814 | ERASE_TO_EOL(); | |
815 | break; | |
816 | case CTL_CH('e'): | |
817 | REFRESH_TO_EOL(); | |
818 | break; | |
819 | case CTL_CH('o'): | |
820 | insert = !insert; | |
821 | break; | |
822 | case CTL_CH('x'): | |
23d0baf9 | 823 | case CTL_CH('u'): |
501090aa WD |
824 | BEGINNING_OF_LINE(); |
825 | ERASE_TO_EOL(); | |
826 | break; | |
827 | case DEL: | |
828 | case DEL7: | |
829 | case 8: | |
830 | if (num) { | |
831 | wlen = eol_num - num; | |
832 | num--; | |
833 | memmove(&buf[num], &buf[num+1], wlen); | |
834 | getcmd_putch(CTL_BACKSPACE); | |
835 | putnstr(buf + num, wlen); | |
836 | getcmd_putch(' '); | |
837 | do { | |
838 | getcmd_putch(CTL_BACKSPACE); | |
839 | } while (wlen--); | |
840 | eol_num--; | |
841 | } | |
842 | break; | |
843 | case CTL_CH('p'): | |
844 | case CTL_CH('n'): | |
845 | { | |
846 | char * hline; | |
847 | ||
848 | esc_len = 0; | |
849 | ||
850 | if (ichar == CTL_CH('p')) | |
851 | hline = hist_prev(); | |
852 | else | |
853 | hline = hist_next(); | |
854 | ||
855 | if (!hline) { | |
856 | getcmd_cbeep(); | |
857 | continue; | |
858 | } | |
859 | ||
860 | /* nuke the current line */ | |
861 | /* first, go home */ | |
862 | BEGINNING_OF_LINE(); | |
863 | ||
864 | /* erase to end of line */ | |
865 | ERASE_TO_EOL(); | |
866 | ||
867 | /* copy new line into place and display */ | |
868 | strcpy(buf, hline); | |
869 | eol_num = strlen(buf); | |
870 | REFRESH_TO_EOL(); | |
871 | continue; | |
872 | } | |
23d0baf9 JCPV |
873 | #ifdef CONFIG_AUTO_COMPLETE |
874 | case '\t': { | |
875 | int num2, col; | |
876 | ||
877 | /* do not autocomplete when in the middle */ | |
878 | if (num < eol_num) { | |
879 | getcmd_cbeep(); | |
880 | break; | |
881 | } | |
882 | ||
883 | buf[num] = '\0'; | |
884 | col = strlen(prompt) + eol_num; | |
885 | num2 = num; | |
886 | if (cmd_auto_complete(prompt, buf, &num2, &col)) { | |
887 | col = num2 - num; | |
888 | num += col; | |
889 | eol_num += col; | |
890 | } | |
891 | break; | |
892 | } | |
893 | #endif | |
501090aa WD |
894 | default: |
895 | cread_add_char(ichar, insert, &num, &eol_num, buf, *len); | |
896 | break; | |
897 | } | |
898 | } | |
899 | *len = eol_num; | |
900 | buf[eol_num] = '\0'; /* lose the newline */ | |
901 | ||
902 | if (buf[0] && buf[0] != CREAD_HIST_CHAR) | |
903 | cread_add_to_hist(buf); | |
904 | hist_cur = hist_add_idx; | |
905 | ||
f9239438 | 906 | return 0; |
501090aa WD |
907 | } |
908 | ||
909 | #endif /* CONFIG_CMDLINE_EDITING */ | |
910 | ||
c609719b WD |
911 | /****************************************************************************/ |
912 | ||
913 | /* | |
914 | * Prompt for input and read a line. | |
915 | * If CONFIG_BOOT_RETRY_TIME is defined and retry_time >= 0, | |
916 | * time out when time goes past endtime (timebase time in ticks). | |
917 | * Return: number of read characters | |
918 | * -1 if break | |
919 | * -2 if timed out | |
920 | */ | |
921 | int readline (const char *const prompt) | |
922 | { | |
ecc5500e PT |
923 | /* |
924 | * If console_buffer isn't 0-length the user will be prompted to modify | |
925 | * it instead of entering it from scratch as desired. | |
926 | */ | |
927 | console_buffer[0] = '\0'; | |
928 | ||
6636b62a JY |
929 | return readline_into_buffer(prompt, console_buffer); |
930 | } | |
931 | ||
932 | ||
933 | int readline_into_buffer (const char *const prompt, char * buffer) | |
934 | { | |
935 | char *p = buffer; | |
501090aa | 936 | #ifdef CONFIG_CMDLINE_EDITING |
8804ae3b | 937 | unsigned int len = CONFIG_SYS_CBSIZE; |
d8f961bb | 938 | int rc; |
501090aa WD |
939 | static int initted = 0; |
940 | ||
597f6c26 JY |
941 | /* |
942 | * History uses a global array which is not | |
943 | * writable until after relocation to RAM. | |
944 | * Revert to non-history version if still | |
945 | * running from flash. | |
946 | */ | |
947 | if (gd->flags & GD_FLG_RELOC) { | |
948 | if (!initted) { | |
949 | hist_init(); | |
950 | initted = 1; | |
951 | } | |
952 | ||
e491a71e PT |
953 | if (prompt) |
954 | puts (prompt); | |
597f6c26 JY |
955 | |
956 | rc = cread_line(prompt, p, &len); | |
957 | return rc < 0 ? rc : len; | |
958 | ||
959 | } else { | |
960 | #endif /* CONFIG_CMDLINE_EDITING */ | |
0ec59524 | 961 | char * p_buf = p; |
c609719b WD |
962 | int n = 0; /* buffer index */ |
963 | int plen = 0; /* prompt length */ | |
964 | int col; /* output column cnt */ | |
965 | char c; | |
966 | ||
967 | /* print prompt */ | |
968 | if (prompt) { | |
969 | plen = strlen (prompt); | |
970 | puts (prompt); | |
971 | } | |
972 | col = plen; | |
973 | ||
974 | for (;;) { | |
975 | #ifdef CONFIG_BOOT_RETRY_TIME | |
976 | while (!tstc()) { /* while no incoming data */ | |
977 | if (retry_time >= 0 && get_ticks() > endtime) | |
978 | return (-2); /* timed out */ | |
30dc165a | 979 | WATCHDOG_RESET(); |
c609719b WD |
980 | } |
981 | #endif | |
982 | WATCHDOG_RESET(); /* Trigger watchdog, if needed */ | |
983 | ||
984 | #ifdef CONFIG_SHOW_ACTIVITY | |
985 | while (!tstc()) { | |
986 | extern void show_activity(int arg); | |
987 | show_activity(0); | |
30dc165a | 988 | WATCHDOG_RESET(); |
c609719b WD |
989 | } |
990 | #endif | |
991 | c = getc(); | |
992 | ||
993 | /* | |
994 | * Special character handling | |
995 | */ | |
996 | switch (c) { | |
997 | case '\r': /* Enter */ | |
998 | case '\n': | |
999 | *p = '\0'; | |
1000 | puts ("\r\n"); | |
6636b62a | 1001 | return (p - p_buf); |
c609719b | 1002 | |
27aa8186 WD |
1003 | case '\0': /* nul */ |
1004 | continue; | |
1005 | ||
c609719b | 1006 | case 0x03: /* ^C - break */ |
6636b62a | 1007 | p_buf[0] = '\0'; /* discard input */ |
c609719b WD |
1008 | return (-1); |
1009 | ||
1010 | case 0x15: /* ^U - erase line */ | |
1011 | while (col > plen) { | |
1012 | puts (erase_seq); | |
1013 | --col; | |
1014 | } | |
6636b62a | 1015 | p = p_buf; |
c609719b WD |
1016 | n = 0; |
1017 | continue; | |
1018 | ||
1636d1c8 | 1019 | case 0x17: /* ^W - erase word */ |
6636b62a | 1020 | p=delete_char(p_buf, p, &col, &n, plen); |
c609719b | 1021 | while ((n > 0) && (*p != ' ')) { |
6636b62a | 1022 | p=delete_char(p_buf, p, &col, &n, plen); |
c609719b WD |
1023 | } |
1024 | continue; | |
1025 | ||
1026 | case 0x08: /* ^H - backspace */ | |
1027 | case 0x7F: /* DEL - backspace */ | |
6636b62a | 1028 | p=delete_char(p_buf, p, &col, &n, plen); |
c609719b WD |
1029 | continue; |
1030 | ||
1031 | default: | |
1032 | /* | |
1033 | * Must be a normal character then | |
1034 | */ | |
6d0f6bcf | 1035 | if (n < CONFIG_SYS_CBSIZE-2) { |
c609719b | 1036 | if (c == '\t') { /* expand TABs */ |
04a85b3b WD |
1037 | #ifdef CONFIG_AUTO_COMPLETE |
1038 | /* if auto completion triggered just continue */ | |
1039 | *p = '\0'; | |
1040 | if (cmd_auto_complete(prompt, console_buffer, &n, &col)) { | |
6636b62a | 1041 | p = p_buf + n; /* reset */ |
04a85b3b WD |
1042 | continue; |
1043 | } | |
1044 | #endif | |
c609719b WD |
1045 | puts (tab_seq+(col&07)); |
1046 | col += 8 - (col&07); | |
1047 | } else { | |
1048 | ++col; /* echo input */ | |
1049 | putc (c); | |
1050 | } | |
1051 | *p++ = c; | |
1052 | ++n; | |
1053 | } else { /* Buffer full */ | |
1054 | putc ('\a'); | |
1055 | } | |
1056 | } | |
1057 | } | |
597f6c26 JY |
1058 | #ifdef CONFIG_CMDLINE_EDITING |
1059 | } | |
1060 | #endif | |
c609719b WD |
1061 | } |
1062 | ||
1063 | /****************************************************************************/ | |
1064 | ||
1065 | static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen) | |
1066 | { | |
1067 | char *s; | |
1068 | ||
1069 | if (*np == 0) { | |
1070 | return (p); | |
1071 | } | |
1072 | ||
1073 | if (*(--p) == '\t') { /* will retype the whole line */ | |
1074 | while (*colp > plen) { | |
1075 | puts (erase_seq); | |
1076 | (*colp)--; | |
1077 | } | |
1078 | for (s=buffer; s<p; ++s) { | |
1079 | if (*s == '\t') { | |
1080 | puts (tab_seq+((*colp) & 07)); | |
1081 | *colp += 8 - ((*colp) & 07); | |
1082 | } else { | |
1083 | ++(*colp); | |
1084 | putc (*s); | |
1085 | } | |
1086 | } | |
1087 | } else { | |
1088 | puts (erase_seq); | |
1089 | (*colp)--; | |
1090 | } | |
1091 | (*np)--; | |
1092 | return (p); | |
1093 | } | |
1094 | ||
1095 | /****************************************************************************/ | |
1096 | ||
1097 | int parse_line (char *line, char *argv[]) | |
1098 | { | |
1099 | int nargs = 0; | |
1100 | ||
1101 | #ifdef DEBUG_PARSER | |
1102 | printf ("parse_line: \"%s\"\n", line); | |
1103 | #endif | |
6d0f6bcf | 1104 | while (nargs < CONFIG_SYS_MAXARGS) { |
c609719b WD |
1105 | |
1106 | /* skip any white space */ | |
1107 | while ((*line == ' ') || (*line == '\t')) { | |
1108 | ++line; | |
1109 | } | |
1110 | ||
1111 | if (*line == '\0') { /* end of line, no more args */ | |
1112 | argv[nargs] = NULL; | |
1113 | #ifdef DEBUG_PARSER | |
1114 | printf ("parse_line: nargs=%d\n", nargs); | |
1115 | #endif | |
1116 | return (nargs); | |
1117 | } | |
1118 | ||
1119 | argv[nargs++] = line; /* begin of argument string */ | |
1120 | ||
1121 | /* find end of string */ | |
1122 | while (*line && (*line != ' ') && (*line != '\t')) { | |
1123 | ++line; | |
1124 | } | |
1125 | ||
1126 | if (*line == '\0') { /* end of line, no more args */ | |
1127 | argv[nargs] = NULL; | |
1128 | #ifdef DEBUG_PARSER | |
1129 | printf ("parse_line: nargs=%d\n", nargs); | |
1130 | #endif | |
1131 | return (nargs); | |
1132 | } | |
1133 | ||
1134 | *line++ = '\0'; /* terminate current arg */ | |
1135 | } | |
1136 | ||
6d0f6bcf | 1137 | printf ("** Too many args (max. %d) **\n", CONFIG_SYS_MAXARGS); |
c609719b WD |
1138 | |
1139 | #ifdef DEBUG_PARSER | |
1140 | printf ("parse_line: nargs=%d\n", nargs); | |
1141 | #endif | |
1142 | return (nargs); | |
1143 | } | |
1144 | ||
1145 | /****************************************************************************/ | |
1146 | ||
1147 | static void process_macros (const char *input, char *output) | |
1148 | { | |
1149 | char c, prev; | |
1150 | const char *varname_start = NULL; | |
19973b6a | 1151 | int inputcnt = strlen (input); |
6d0f6bcf | 1152 | int outputcnt = CONFIG_SYS_CBSIZE; |
19973b6a WD |
1153 | int state = 0; /* 0 = waiting for '$' */ |
1154 | ||
1155 | /* 1 = waiting for '(' or '{' */ | |
1156 | /* 2 = waiting for ')' or '}' */ | |
1157 | /* 3 = waiting for ''' */ | |
c609719b WD |
1158 | #ifdef DEBUG_PARSER |
1159 | char *output_start = output; | |
1160 | ||
19973b6a WD |
1161 | printf ("[PROCESS_MACROS] INPUT len %d: \"%s\"\n", strlen (input), |
1162 | input); | |
c609719b WD |
1163 | #endif |
1164 | ||
19973b6a | 1165 | prev = '\0'; /* previous character */ |
c609719b WD |
1166 | |
1167 | while (inputcnt && outputcnt) { | |
8bde7f77 | 1168 | c = *input++; |
19973b6a WD |
1169 | inputcnt--; |
1170 | ||
1171 | if (state != 3) { | |
1172 | /* remove one level of escape characters */ | |
1173 | if ((c == '\\') && (prev != '\\')) { | |
1174 | if (inputcnt-- == 0) | |
1175 | break; | |
1176 | prev = c; | |
1177 | c = *input++; | |
1178 | } | |
c609719b | 1179 | } |
19973b6a WD |
1180 | |
1181 | switch (state) { | |
1182 | case 0: /* Waiting for (unescaped) $ */ | |
1183 | if ((c == '\'') && (prev != '\\')) { | |
1184 | state = 3; | |
1185 | break; | |
1186 | } | |
1187 | if ((c == '$') && (prev != '\\')) { | |
1188 | state++; | |
1189 | } else { | |
c609719b WD |
1190 | *(output++) = c; |
1191 | outputcnt--; | |
1192 | } | |
19973b6a WD |
1193 | break; |
1194 | case 1: /* Waiting for ( */ | |
1195 | if (c == '(' || c == '{') { | |
1196 | state++; | |
1197 | varname_start = input; | |
1198 | } else { | |
1199 | state = 0; | |
1200 | *(output++) = '$'; | |
1201 | outputcnt--; | |
c609719b | 1202 | |
19973b6a WD |
1203 | if (outputcnt) { |
1204 | *(output++) = c; | |
c609719b WD |
1205 | outputcnt--; |
1206 | } | |
19973b6a WD |
1207 | } |
1208 | break; | |
1209 | case 2: /* Waiting for ) */ | |
1210 | if (c == ')' || c == '}') { | |
1211 | int i; | |
6d0f6bcf | 1212 | char envname[CONFIG_SYS_CBSIZE], *envval; |
19973b6a WD |
1213 | int envcnt = input - varname_start - 1; /* Varname # of chars */ |
1214 | ||
1215 | /* Get the varname */ | |
1216 | for (i = 0; i < envcnt; i++) { | |
1217 | envname[i] = varname_start[i]; | |
1218 | } | |
1219 | envname[i] = 0; | |
1220 | ||
1221 | /* Get its value */ | |
1222 | envval = getenv (envname); | |
1223 | ||
1224 | /* Copy into the line if it exists */ | |
1225 | if (envval != NULL) | |
1226 | while ((*envval) && outputcnt) { | |
1227 | *(output++) = *(envval++); | |
1228 | outputcnt--; | |
1229 | } | |
1230 | /* Look for another '$' */ | |
1231 | state = 0; | |
1232 | } | |
1233 | break; | |
1234 | case 3: /* Waiting for ' */ | |
1235 | if ((c == '\'') && (prev != '\\')) { | |
1236 | state = 0; | |
1237 | } else { | |
1238 | *(output++) = c; | |
1239 | outputcnt--; | |
1240 | } | |
1241 | break; | |
a25f862b | 1242 | } |
19973b6a | 1243 | prev = c; |
c609719b WD |
1244 | } |
1245 | ||
1246 | if (outputcnt) | |
1247 | *output = 0; | |
9160b96f BS |
1248 | else |
1249 | *(output - 1) = 0; | |
c609719b WD |
1250 | |
1251 | #ifdef DEBUG_PARSER | |
1252 | printf ("[PROCESS_MACROS] OUTPUT len %d: \"%s\"\n", | |
19973b6a | 1253 | strlen (output_start), output_start); |
c609719b WD |
1254 | #endif |
1255 | } | |
1256 | ||
1257 | /**************************************************************************** | |
1258 | * returns: | |
1259 | * 1 - command executed, repeatable | |
1260 | * 0 - command executed but not repeatable, interrupted commands are | |
1261 | * always considered not repeatable | |
1262 | * -1 - not executed (unrecognized, bootd recursion or too many args) | |
6d0f6bcf | 1263 | * (If cmd is NULL or "" or longer than CONFIG_SYS_CBSIZE-1 it is |
c609719b WD |
1264 | * considered unrecognized) |
1265 | * | |
1266 | * WARNING: | |
1267 | * | |
1268 | * We must create a temporary copy of the command since the command we get | |
1269 | * may be the result from getenv(), which returns a pointer directly to | |
1270 | * the environment data, which may change magicly when the command we run | |
1271 | * creates or modifies environment variables (like "bootp" does). | |
1272 | */ | |
1273 | ||
1274 | int run_command (const char *cmd, int flag) | |
1275 | { | |
1276 | cmd_tbl_t *cmdtp; | |
6d0f6bcf | 1277 | char cmdbuf[CONFIG_SYS_CBSIZE]; /* working copy of cmd */ |
c609719b WD |
1278 | char *token; /* start of token in cmdbuf */ |
1279 | char *sep; /* end of token (separator) in cmdbuf */ | |
6d0f6bcf | 1280 | char finaltoken[CONFIG_SYS_CBSIZE]; |
c609719b | 1281 | char *str = cmdbuf; |
6d0f6bcf | 1282 | char *argv[CONFIG_SYS_MAXARGS + 1]; /* NULL terminated */ |
f07771cc | 1283 | int argc, inquotes; |
c609719b | 1284 | int repeatable = 1; |
f07771cc | 1285 | int rc = 0; |
c609719b WD |
1286 | |
1287 | #ifdef DEBUG_PARSER | |
1288 | printf ("[RUN_COMMAND] cmd[%p]=\"", cmd); | |
1289 | puts (cmd ? cmd : "NULL"); /* use puts - string may be loooong */ | |
1290 | puts ("\"\n"); | |
1291 | #endif | |
1292 | ||
1293 | clear_ctrlc(); /* forget any previous Control C */ | |
1294 | ||
1295 | if (!cmd || !*cmd) { | |
1296 | return -1; /* empty command */ | |
1297 | } | |
1298 | ||
6d0f6bcf | 1299 | if (strlen(cmd) >= CONFIG_SYS_CBSIZE) { |
c609719b WD |
1300 | puts ("## Command too long!\n"); |
1301 | return -1; | |
1302 | } | |
1303 | ||
1304 | strcpy (cmdbuf, cmd); | |
1305 | ||
1306 | /* Process separators and check for invalid | |
1307 | * repeatable commands | |
1308 | */ | |
1309 | ||
1310 | #ifdef DEBUG_PARSER | |
1311 | printf ("[PROCESS_SEPARATORS] %s\n", cmd); | |
1312 | #endif | |
1313 | while (*str) { | |
1314 | ||
1315 | /* | |
1316 | * Find separator, or string end | |
1317 | * Allow simple escape of ';' by writing "\;" | |
1318 | */ | |
a25f862b WD |
1319 | for (inquotes = 0, sep = str; *sep; sep++) { |
1320 | if ((*sep=='\'') && | |
1321 | (*(sep-1) != '\\')) | |
1322 | inquotes=!inquotes; | |
1323 | ||
1324 | if (!inquotes && | |
1325 | (*sep == ';') && /* separator */ | |
c609719b WD |
1326 | ( sep != str) && /* past string start */ |
1327 | (*(sep-1) != '\\')) /* and NOT escaped */ | |
1328 | break; | |
1329 | } | |
1330 | ||
1331 | /* | |
1332 | * Limit the token to data between separators | |
1333 | */ | |
1334 | token = str; | |
1335 | if (*sep) { | |
1336 | str = sep + 1; /* start of command for next pass */ | |
1337 | *sep = '\0'; | |
1338 | } | |
1339 | else | |
1340 | str = sep; /* no more commands for next pass */ | |
1341 | #ifdef DEBUG_PARSER | |
1342 | printf ("token: \"%s\"\n", token); | |
1343 | #endif | |
1344 | ||
1345 | /* find macros in this token and replace them */ | |
1346 | process_macros (token, finaltoken); | |
1347 | ||
1348 | /* Extract arguments */ | |
1264b405 WD |
1349 | if ((argc = parse_line (finaltoken, argv)) == 0) { |
1350 | rc = -1; /* no command at all */ | |
1351 | continue; | |
1352 | } | |
c609719b WD |
1353 | |
1354 | /* Look up command in command table */ | |
1355 | if ((cmdtp = find_cmd(argv[0])) == NULL) { | |
1356 | printf ("Unknown command '%s' - try 'help'\n", argv[0]); | |
f07771cc WD |
1357 | rc = -1; /* give up after bad command */ |
1358 | continue; | |
c609719b WD |
1359 | } |
1360 | ||
1361 | /* found - check max args */ | |
1362 | if (argc > cmdtp->maxargs) { | |
62c3ae7c | 1363 | cmd_usage(cmdtp); |
f07771cc WD |
1364 | rc = -1; |
1365 | continue; | |
c609719b WD |
1366 | } |
1367 | ||
c3517f91 | 1368 | #if defined(CONFIG_CMD_BOOTD) |
c609719b WD |
1369 | /* avoid "bootd" recursion */ |
1370 | if (cmdtp->cmd == do_bootd) { | |
1371 | #ifdef DEBUG_PARSER | |
1372 | printf ("[%s]\n", finaltoken); | |
1373 | #endif | |
1374 | if (flag & CMD_FLAG_BOOTD) { | |
4b9206ed | 1375 | puts ("'bootd' recursion detected\n"); |
f07771cc WD |
1376 | rc = -1; |
1377 | continue; | |
1264b405 | 1378 | } else { |
c609719b | 1379 | flag |= CMD_FLAG_BOOTD; |
1264b405 | 1380 | } |
c609719b | 1381 | } |
90253178 | 1382 | #endif |
c609719b WD |
1383 | |
1384 | /* OK - call function to do the command */ | |
1385 | if ((cmdtp->cmd) (cmdtp, flag, argc, argv) != 0) { | |
f07771cc | 1386 | rc = -1; |
c609719b WD |
1387 | } |
1388 | ||
1389 | repeatable &= cmdtp->repeatable; | |
1390 | ||
1391 | /* Did the user stop this? */ | |
1392 | if (had_ctrlc ()) | |
5afb2020 | 1393 | return -1; /* if stopped then not repeatable */ |
c609719b WD |
1394 | } |
1395 | ||
f07771cc | 1396 | return rc ? rc : repeatable; |
c609719b WD |
1397 | } |
1398 | ||
1399 | /****************************************************************************/ | |
1400 | ||
c3517f91 | 1401 | #if defined(CONFIG_CMD_RUN) |
54841ab5 | 1402 | int do_run (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
c609719b WD |
1403 | { |
1404 | int i; | |
c609719b | 1405 | |
47e26b1b WD |
1406 | if (argc < 2) |
1407 | return cmd_usage(cmdtp); | |
c609719b WD |
1408 | |
1409 | for (i=1; i<argc; ++i) { | |
3e38691e WD |
1410 | char *arg; |
1411 | ||
1412 | if ((arg = getenv (argv[i])) == NULL) { | |
1413 | printf ("## Error: \"%s\" not defined\n", argv[i]); | |
1414 | return 1; | |
1415 | } | |
6d0f6bcf | 1416 | #ifndef CONFIG_SYS_HUSH_PARSER |
3e38691e WD |
1417 | if (run_command (arg, flag) == -1) |
1418 | return 1; | |
c609719b | 1419 | #else |
3e38691e | 1420 | if (parse_string_outer(arg, |
7aa78614 | 1421 | FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) != 0) |
3e38691e | 1422 | return 1; |
c609719b WD |
1423 | #endif |
1424 | } | |
3e38691e | 1425 | return 0; |
c609719b | 1426 | } |
90253178 | 1427 | #endif |