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wdenk5dfa25f2002-10-19 19:42:10 +00001/*
wdenk8bde7f72003-06-27 21:31:46 +00002 * (C) Copyright 2000-2003
wdenk5dfa25f2002-10-19 19:42:10 +00003 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24/*
25 * Command Processor Table
26 */
27
28#include <common.h>
29#include <command.h>
wdenk5dfa25f2002-10-19 19:42:10 +000030
31int
32do_version (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
33{
34 extern char version_string[];
35 printf ("\n%s\n", version_string);
36 return 0;
37}
38
wdenk0d498392003-07-01 21:06:45 +000039U_BOOT_CMD(
40 version, 1, 1, do_version,
wdenkb0fce992003-06-29 21:03:46 +000041 "version - print monitor version\n",
42 NULL
43);
44
Jon Loeligerc3517f92007-07-08 18:10:08 -050045#if defined(CONFIG_CMD_ECHO)
Wolfgang Denk953c5b62006-03-12 16:51:59 +010046
wdenk5dfa25f2002-10-19 19:42:10 +000047int
48do_echo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
49{
50 int i, putnl = 1;
51
52 for (i = 1; i < argc; i++) {
53 char *p = argv[i], c;
54
55 if (i > 1)
56 putc(' ');
wdenk71f95112003-06-15 22:40:42 +000057 while ((c = *p++) != '\0') {
wdenk5dfa25f2002-10-19 19:42:10 +000058 if (c == '\\' && *p == 'c') {
59 putnl = 0;
60 p++;
wdenk71f95112003-06-15 22:40:42 +000061 } else {
wdenk5dfa25f2002-10-19 19:42:10 +000062 putc(c);
wdenk71f95112003-06-15 22:40:42 +000063 }
64 }
wdenk5dfa25f2002-10-19 19:42:10 +000065 }
66
67 if (putnl)
68 putc('\n');
69 return 0;
70}
71
wdenk0d498392003-07-01 21:06:45 +000072U_BOOT_CMD(
73 echo, CFG_MAXARGS, 1, do_echo,
wdenkb0fce992003-06-29 21:03:46 +000074 "echo - echo args to console\n",
75 "[args..]\n"
76 " - echo args to console; \\c suppresses newline\n"
77);
78
Jon Loeliger90253172007-07-10 11:02:44 -050079#endif
Wolfgang Denk953c5b62006-03-12 16:51:59 +010080
wdenkc26e4542004-04-18 10:13:26 +000081#ifdef CFG_HUSH_PARSER
82
83int
84do_test (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
85{
86 char **ap;
87 int left, adv, expr, last_expr, neg, last_cmp;
88
89 /* args? */
90 if (argc < 3)
91 return 1;
92
93#if 0
94 {
95 printf("test:");
wdenk6e592382004-04-18 17:39:38 +000096 left = 1;
wdenkc26e4542004-04-18 10:13:26 +000097 while (argv[left])
98 printf(" %s", argv[left++]);
99 }
100#endif
wdenk6e592382004-04-18 17:39:38 +0000101
wdenkc26e4542004-04-18 10:13:26 +0000102 last_expr = 0;
103 left = argc - 1; ap = argv + 1;
104 if (left > 0 && strcmp(ap[0], "!") == 0) {
105 neg = 1;
106 ap++;
107 left--;
108 } else
109 neg = 0;
110
111 expr = -1;
112 last_cmp = -1;
113 last_expr = -1;
114 while (left > 0) {
115
116 if (strcmp(ap[0], "-o") == 0 || strcmp(ap[0], "-a") == 0)
117 adv = 1;
118 else if (strcmp(ap[0], "-z") == 0 || strcmp(ap[0], "-n") == 0)
119 adv = 2;
120 else
121 adv = 3;
122
123 if (left < adv) {
124 expr = 1;
125 break;
126 }
127
128 if (adv == 1) {
129 if (strcmp(ap[0], "-o") == 0) {
130 last_expr = expr;
131 last_cmp = 0;
132 } else if (strcmp(ap[0], "-a") == 0) {
133 last_expr = expr;
134 last_cmp = 1;
135 } else {
136 expr = 1;
137 break;
138 }
139 }
140
141 if (adv == 2) {
142 if (strcmp(ap[0], "-z") == 0)
wdenkc26e4542004-04-18 10:13:26 +0000143 expr = strlen(ap[1]) == 0 ? 1 : 0;
wdenk20787e22005-04-06 00:04:16 +0000144 else if (strcmp(ap[0], "-n") == 0)
145 expr = strlen(ap[1]) == 0 ? 0 : 1;
wdenkc26e4542004-04-18 10:13:26 +0000146 else {
147 expr = 1;
148 break;
149 }
150
151 if (last_cmp == 0)
152 expr = last_expr || expr;
153 else if (last_cmp == 1)
154 expr = last_expr && expr;
155 last_cmp = -1;
156 }
157
158 if (adv == 3) {
159 if (strcmp(ap[1], "=") == 0)
160 expr = strcmp(ap[0], ap[2]) == 0;
161 else if (strcmp(ap[1], "!=") == 0)
162 expr = strcmp(ap[0], ap[2]) != 0;
163 else if (strcmp(ap[1], ">") == 0)
164 expr = strcmp(ap[0], ap[2]) > 0;
165 else if (strcmp(ap[1], "<") == 0)
166 expr = strcmp(ap[0], ap[2]) < 0;
167 else if (strcmp(ap[1], "-eq") == 0)
168 expr = simple_strtol(ap[0], NULL, 10) == simple_strtol(ap[2], NULL, 10);
169 else if (strcmp(ap[1], "-ne") == 0)
170 expr = simple_strtol(ap[0], NULL, 10) != simple_strtol(ap[2], NULL, 10);
171 else if (strcmp(ap[1], "-lt") == 0)
172 expr = simple_strtol(ap[0], NULL, 10) < simple_strtol(ap[2], NULL, 10);
173 else if (strcmp(ap[1], "-le") == 0)
174 expr = simple_strtol(ap[0], NULL, 10) <= simple_strtol(ap[2], NULL, 10);
175 else if (strcmp(ap[1], "-gt") == 0)
176 expr = simple_strtol(ap[0], NULL, 10) > simple_strtol(ap[2], NULL, 10);
177 else if (strcmp(ap[1], "-ge") == 0)
178 expr = simple_strtol(ap[0], NULL, 10) >= simple_strtol(ap[2], NULL, 10);
179 else {
180 expr = 1;
181 break;
182 }
183
184 if (last_cmp == 0)
185 expr = last_expr || expr;
186 else if (last_cmp == 1)
187 expr = last_expr && expr;
188 last_cmp = -1;
189 }
190
191 ap += adv; left -= adv;
192 }
193
194 if (neg)
195 expr = !expr;
196
197 expr = !expr;
198
199#if 0
200 printf(": returns %d\n", expr);
201#endif
202
203 return expr;
204}
205
206U_BOOT_CMD(
207 test, CFG_MAXARGS, 1, do_test,
208 "test - minimal test like /bin/sh\n",
209 "[args..]\n"
210 " - test functionality\n"
211);
212
213int
214do_exit (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
215{
216 int r;
217
218 r = 0;
219 if (argc > 1)
220 r = simple_strtoul(argv[1], NULL, 10);
221
222 return -r - 2;
223}
224
225U_BOOT_CMD(
226 exit, 2, 1, do_exit,
227 "exit - exit script\n",
228 " - exit functionality\n"
229);
230
231
232#endif
233
wdenk5dfa25f2002-10-19 19:42:10 +0000234/*
235 * Use puts() instead of printf() to avoid printf buffer overflow
236 * for long help messages
237 */
wdenk8bde7f72003-06-27 21:31:46 +0000238int do_help (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
wdenk5dfa25f2002-10-19 19:42:10 +0000239{
240 int i;
241 int rcode = 0;
242
wdenk8bde7f72003-06-27 21:31:46 +0000243 if (argc == 1) { /*show list of commands */
wdenk5dfa25f2002-10-19 19:42:10 +0000244
wdenk9d2b18a2003-06-28 23:11:04 +0000245 int cmd_items = &__u_boot_cmd_end -
246 &__u_boot_cmd_start; /* pointer arith! */
247 cmd_tbl_t *cmd_array[cmd_items];
248 int i, j, swaps;
wdenk8bde7f72003-06-27 21:31:46 +0000249
wdenk9d2b18a2003-06-28 23:11:04 +0000250 /* Make array of commands from .uboot_cmd section */
251 cmdtp = &__u_boot_cmd_start;
252 for (i = 0; i < cmd_items; i++) {
253 cmd_array[i] = cmdtp++;
wdenk8bde7f72003-06-27 21:31:46 +0000254 }
wdenk8bde7f72003-06-27 21:31:46 +0000255
wdenk9d2b18a2003-06-28 23:11:04 +0000256 /* Sort command list (trivial bubble sort) */
257 for (i = cmd_items - 1; i > 0; --i) {
258 swaps = 0;
259 for (j = 0; j < i; ++j) {
260 if (strcmp (cmd_array[j]->name,
261 cmd_array[j + 1]->name) > 0) {
262 cmd_tbl_t *tmp;
263 tmp = cmd_array[j];
264 cmd_array[j] = cmd_array[j + 1];
265 cmd_array[j + 1] = tmp;
266 ++swaps;
267 }
wdenk8bde7f72003-06-27 21:31:46 +0000268 }
wdenk9d2b18a2003-06-28 23:11:04 +0000269 if (!swaps)
270 break;
wdenk8bde7f72003-06-27 21:31:46 +0000271 }
272
273 /* print short help (usage) */
wdenk9d2b18a2003-06-28 23:11:04 +0000274 for (i = 0; i < cmd_items; i++) {
275 const char *usage = cmd_array[i]->usage;
276
wdenk5dfa25f2002-10-19 19:42:10 +0000277 /* allow user abort */
wdenk8bde7f72003-06-27 21:31:46 +0000278 if (ctrlc ())
wdenk5dfa25f2002-10-19 19:42:10 +0000279 return 1;
wdenk9d2b18a2003-06-28 23:11:04 +0000280 if (usage == NULL)
wdenk5dfa25f2002-10-19 19:42:10 +0000281 continue;
wdenk9d2b18a2003-06-28 23:11:04 +0000282 puts (usage);
wdenk5dfa25f2002-10-19 19:42:10 +0000283 }
wdenk5dfa25f2002-10-19 19:42:10 +0000284 return 0;
285 }
wdenk5dfa25f2002-10-19 19:42:10 +0000286 /*
287 * command help (long version)
288 */
wdenk8bde7f72003-06-27 21:31:46 +0000289 for (i = 1; i < argc; ++i) {
290 if ((cmdtp = find_cmd (argv[i])) != NULL) {
wdenk5dfa25f2002-10-19 19:42:10 +0000291#ifdef CFG_LONGHELP
292 /* found - print (long) help info */
293 puts (cmdtp->name);
294 putc (' ');
295 if (cmdtp->help) {
296 puts (cmdtp->help);
297 } else {
298 puts ("- No help available.\n");
299 rcode = 1;
300 }
301 putc ('\n');
302#else /* no long help available */
303 if (cmdtp->usage)
304 puts (cmdtp->usage);
305#endif /* CFG_LONGHELP */
wdenk71f95112003-06-15 22:40:42 +0000306 } else {
wdenk5dfa25f2002-10-19 19:42:10 +0000307 printf ("Unknown command '%s' - try 'help'"
308 " without arguments for list of all"
wdenk8bde7f72003-06-27 21:31:46 +0000309 " known commands\n\n", argv[i]
310 );
wdenk5dfa25f2002-10-19 19:42:10 +0000311 rcode = 1;
312 }
313 }
314 return rcode;
315}
316
wdenk8bde7f72003-06-27 21:31:46 +0000317
wdenk0d498392003-07-01 21:06:45 +0000318U_BOOT_CMD(
319 help, CFG_MAXARGS, 1, do_help,
wdenk8bde7f72003-06-27 21:31:46 +0000320 "help - print online help\n",
321 "[command ...]\n"
322 " - show help information (for 'command')\n"
323 "'help' prints online help for the monitor commands.\n\n"
324 "Without arguments, it prints a short usage message for all commands.\n\n"
325 "To get detailed help information for specific commands you can type\n"
326 "'help' with one or more command names as arguments.\n"
327);
328
wdenk0d498392003-07-01 21:06:45 +0000329/* This do not ust the U_BOOT_CMD macro as ? can't be used in symbol names */
330#ifdef CFG_LONGHELP
331cmd_tbl_t __u_boot_cmd_question_mark Struct_Section = {
wdenk8bde7f72003-06-27 21:31:46 +0000332 "?", CFG_MAXARGS, 1, do_help,
333 "? - alias for 'help'\n",
334 NULL
wdenk0d498392003-07-01 21:06:45 +0000335};
336#else
337cmd_tbl_t __u_boot_cmd_question_mark Struct_Section = {
338 "?", CFG_MAXARGS, 1, do_help,
339 "? - alias for 'help'\n"
340};
341#endif /* CFG_LONGHELP */
wdenk8bde7f72003-06-27 21:31:46 +0000342
wdenk5dfa25f2002-10-19 19:42:10 +0000343/***************************************************************************
344 * find command table entry for a command
345 */
wdenk8bde7f72003-06-27 21:31:46 +0000346cmd_tbl_t *find_cmd (const char *cmd)
wdenk5dfa25f2002-10-19 19:42:10 +0000347{
348 cmd_tbl_t *cmdtp;
wdenk8bde7f72003-06-27 21:31:46 +0000349 cmd_tbl_t *cmdtp_temp = &__u_boot_cmd_start; /*Init value */
wdenk9d2b18a2003-06-28 23:11:04 +0000350 const char *p;
351 int len;
352 int n_found = 0;
wdenk8bde7f72003-06-27 21:31:46 +0000353
wdenk9d2b18a2003-06-28 23:11:04 +0000354 /*
355 * Some commands allow length modifiers (like "cp.b");
356 * compare command name only until first dot.
357 */
358 len = ((p = strchr(cmd, '.')) == NULL) ? strlen (cmd) : (p - cmd);
359
360 for (cmdtp = &__u_boot_cmd_start;
361 cmdtp != &__u_boot_cmd_end;
362 cmdtp++) {
363 if (strncmp (cmd, cmdtp->name, len) == 0) {
364 if (len == strlen (cmdtp->name))
365 return cmdtp; /* full match */
366
367 cmdtp_temp = cmdtp; /* abbreviated command ? */
368 n_found++;
369 }
wdenk5dfa25f2002-10-19 19:42:10 +0000370 }
wdenk9d2b18a2003-06-28 23:11:04 +0000371 if (n_found == 1) { /* exactly one match */
wdenk8bde7f72003-06-27 21:31:46 +0000372 return cmdtp_temp;
wdenk9d2b18a2003-06-28 23:11:04 +0000373 }
wdenk8bde7f72003-06-27 21:31:46 +0000374
wdenk9d2b18a2003-06-28 23:11:04 +0000375 return NULL; /* not found or ambiguous command */
wdenk5dfa25f2002-10-19 19:42:10 +0000376}
wdenk04a85b32004-04-15 18:22:41 +0000377
378#ifdef CONFIG_AUTO_COMPLETE
379
380int var_complete(int argc, char *argv[], char last_char, int maxv, char *cmdv[])
381{
382 static char tmp_buf[512];
383 int space;
384
385 space = last_char == '\0' || last_char == ' ' || last_char == '\t';
386
387 if (space && argc == 1)
388 return env_complete("", maxv, cmdv, sizeof(tmp_buf), tmp_buf);
389
390 if (!space && argc == 2)
391 return env_complete(argv[1], maxv, cmdv, sizeof(tmp_buf), tmp_buf);
392
393 return 0;
394}
395
396static void install_auto_complete_handler(const char *cmd,
397 int (*complete)(int argc, char *argv[], char last_char, int maxv, char *cmdv[]))
398{
399 cmd_tbl_t *cmdtp;
400
401 cmdtp = find_cmd(cmd);
402 if (cmdtp == NULL)
403 return;
404
405 cmdtp->complete = complete;
406}
407
408void install_auto_complete(void)
409{
410 install_auto_complete_handler("printenv", var_complete);
411 install_auto_complete_handler("setenv", var_complete);
Jon Loeligerc3517f92007-07-08 18:10:08 -0500412#if defined(CONFIG_CMD_RUN)
wdenk04a85b32004-04-15 18:22:41 +0000413 install_auto_complete_handler("run", var_complete);
414#endif
415}
416
417/*************************************************************************************/
418
419static int complete_cmdv(int argc, char *argv[], char last_char, int maxv, char *cmdv[])
420{
421 cmd_tbl_t *cmdtp;
422 const char *p;
423 int len, clen;
424 int n_found = 0;
425 const char *cmd;
426
427 /* sanity? */
428 if (maxv < 2)
429 return -2;
430
431 cmdv[0] = NULL;
432
433 if (argc == 0) {
434 /* output full list of commands */
435 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
436 if (n_found >= maxv - 2) {
437 cmdv[n_found++] = "...";
438 break;
439 }
440 cmdv[n_found++] = cmdtp->name;
441 }
442 cmdv[n_found] = NULL;
443 return n_found;
444 }
445
446 /* more than one arg or one but the start of the next */
447 if (argc > 1 || (last_char == '\0' || last_char == ' ' || last_char == '\t')) {
448 cmdtp = find_cmd(argv[0]);
449 if (cmdtp == NULL || cmdtp->complete == NULL) {
450 cmdv[0] = NULL;
451 return 0;
452 }
453 return (*cmdtp->complete)(argc, argv, last_char, maxv, cmdv);
454 }
455
456 cmd = argv[0];
457 /*
458 * Some commands allow length modifiers (like "cp.b");
459 * compare command name only until first dot.
460 */
461 p = strchr(cmd, '.');
462 if (p == NULL)
463 len = strlen(cmd);
464 else
465 len = p - cmd;
466
467 /* return the partial matches */
468 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
469
470 clen = strlen(cmdtp->name);
471 if (clen < len)
472 continue;
473
474 if (memcmp(cmd, cmdtp->name, len) != 0)
475 continue;
476
477 /* too many! */
478 if (n_found >= maxv - 2) {
479 cmdv[n_found++] = "...";
480 break;
481 }
482
483 cmdv[n_found++] = cmdtp->name;
484 }
485
486 cmdv[n_found] = NULL;
487 return n_found;
488}
489
490static int make_argv(char *s, int argvsz, char *argv[])
491{
492 int argc = 0;
493
494 /* split into argv */
495 while (argc < argvsz - 1) {
496
497 /* skip any white space */
498 while ((*s == ' ') || (*s == '\t'))
499 ++s;
500
501 if (*s == '\0') /* end of s, no more args */
502 break;
503
504 argv[argc++] = s; /* begin of argument string */
505
506 /* find end of string */
507 while (*s && (*s != ' ') && (*s != '\t'))
508 ++s;
509
510 if (*s == '\0') /* end of s, no more args */
511 break;
512
513 *s++ = '\0'; /* terminate current arg */
514 }
515 argv[argc] = NULL;
516
517 return argc;
518}
519
520static void print_argv(const char *banner, const char *leader, const char *sep, int linemax, char *argv[])
521{
522 int ll = leader != NULL ? strlen(leader) : 0;
523 int sl = sep != NULL ? strlen(sep) : 0;
524 int len, i;
525
526 if (banner) {
527 puts("\n");
528 puts(banner);
529 }
530
531 i = linemax; /* force leader and newline */
532 while (*argv != NULL) {
533 len = strlen(*argv) + sl;
534 if (i + len >= linemax) {
535 puts("\n");
536 if (leader)
537 puts(leader);
538 i = ll - sl;
539 } else if (sep)
540 puts(sep);
541 puts(*argv++);
542 i += len;
543 }
544 printf("\n");
545}
546
547static int find_common_prefix(char *argv[])
548{
549 int i, len;
550 char *anchor, *s, *t;
551
552 if (*argv == NULL)
553 return 0;
554
555 /* begin with max */
556 anchor = *argv++;
557 len = strlen(anchor);
558 while ((t = *argv++) != NULL) {
559 s = anchor;
560 for (i = 0; i < len; i++, t++, s++) {
561 if (*t != *s)
562 break;
563 }
564 len = s - anchor;
565 }
566 return len;
567}
568
569static char tmp_buf[CFG_CBSIZE]; /* copy of console I/O buffer */
570
571int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp)
572{
573 int n = *np, col = *colp;
574 char *argv[CFG_MAXARGS + 1]; /* NULL terminated */
575 char *cmdv[20];
576 char *s, *t;
577 const char *sep;
578 int i, j, k, len, seplen, argc;
579 int cnt;
580 char last_char;
581
582 if (strcmp(prompt, CFG_PROMPT) != 0)
583 return 0; /* not in normal console */
584
585 cnt = strlen(buf);
586 if (cnt >= 1)
587 last_char = buf[cnt - 1];
588 else
589 last_char = '\0';
590
591 /* copy to secondary buffer which will be affected */
592 strcpy(tmp_buf, buf);
593
594 /* separate into argv */
595 argc = make_argv(tmp_buf, sizeof(argv)/sizeof(argv[0]), argv);
596
597 /* do the completion and return the possible completions */
598 i = complete_cmdv(argc, argv, last_char, sizeof(cmdv)/sizeof(cmdv[0]), cmdv);
599
600 /* no match; bell and out */
601 if (i == 0) {
602 if (argc > 1) /* allow tab for non command */
603 return 0;
604 putc('\a');
605 return 1;
606 }
607
608 s = NULL;
609 len = 0;
610 sep = NULL;
611 seplen = 0;
612 if (i == 1) { /* one match; perfect */
613 k = strlen(argv[argc - 1]);
614 s = cmdv[0] + k;
615 len = strlen(s);
616 sep = " ";
617 seplen = 1;
618 } else if (i > 1 && (j = find_common_prefix(cmdv)) != 0) { /* more */
619 k = strlen(argv[argc - 1]);
620 j -= k;
621 if (j > 0) {
622 s = cmdv[0] + k;
623 len = j;
624 }
625 }
626
627 if (s != NULL) {
628 k = len + seplen;
629 /* make sure it fits */
630 if (n + k >= CFG_CBSIZE - 2) {
631 putc('\a');
632 return 1;
633 }
634
635 t = buf + cnt;
636 for (i = 0; i < len; i++)
637 *t++ = *s++;
638 if (sep != NULL)
639 for (i = 0; i < seplen; i++)
640 *t++ = sep[i];
641 *t = '\0';
642 n += k;
643 col += k;
644 puts(t - k);
645 if (sep == NULL)
646 putc('\a');
647 *np = n;
648 *colp = col;
649 } else {
650 print_argv(NULL, " ", " ", 78, cmdv);
651
652 puts(prompt);
653 puts(buf);
654 }
655 return 1;
656}
657
658#endif