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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
wdenk5dfa25f2002-10-19 19:42:10 +000045int
46do_echo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
47{
48 int i, putnl = 1;
49
50 for (i = 1; i < argc; i++) {
51 char *p = argv[i], c;
52
53 if (i > 1)
54 putc(' ');
wdenk71f95112003-06-15 22:40:42 +000055 while ((c = *p++) != '\0') {
wdenk5dfa25f2002-10-19 19:42:10 +000056 if (c == '\\' && *p == 'c') {
57 putnl = 0;
58 p++;
wdenk71f95112003-06-15 22:40:42 +000059 } else {
wdenk5dfa25f2002-10-19 19:42:10 +000060 putc(c);
wdenk71f95112003-06-15 22:40:42 +000061 }
62 }
wdenk5dfa25f2002-10-19 19:42:10 +000063 }
64
65 if (putnl)
66 putc('\n');
67 return 0;
68}
69
wdenk0d498392003-07-01 21:06:45 +000070U_BOOT_CMD(
71 echo, CFG_MAXARGS, 1, do_echo,
wdenkb0fce992003-06-29 21:03:46 +000072 "echo - echo args to console\n",
73 "[args..]\n"
74 " - echo args to console; \\c suppresses newline\n"
75);
76
wdenkc26e4542004-04-18 10:13:26 +000077#ifdef CFG_HUSH_PARSER
78
79int
80do_test (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
81{
82 char **ap;
83 int left, adv, expr, last_expr, neg, last_cmp;
84
85 /* args? */
86 if (argc < 3)
87 return 1;
88
89#if 0
90 {
91 printf("test:");
wdenk6e592382004-04-18 17:39:38 +000092 left = 1;
wdenkc26e4542004-04-18 10:13:26 +000093 while (argv[left])
94 printf(" %s", argv[left++]);
95 }
96#endif
wdenk6e592382004-04-18 17:39:38 +000097
wdenkc26e4542004-04-18 10:13:26 +000098 last_expr = 0;
99 left = argc - 1; ap = argv + 1;
100 if (left > 0 && strcmp(ap[0], "!") == 0) {
101 neg = 1;
102 ap++;
103 left--;
104 } else
105 neg = 0;
106
107 expr = -1;
108 last_cmp = -1;
109 last_expr = -1;
110 while (left > 0) {
111
112 if (strcmp(ap[0], "-o") == 0 || strcmp(ap[0], "-a") == 0)
113 adv = 1;
114 else if (strcmp(ap[0], "-z") == 0 || strcmp(ap[0], "-n") == 0)
115 adv = 2;
116 else
117 adv = 3;
118
119 if (left < adv) {
120 expr = 1;
121 break;
122 }
123
124 if (adv == 1) {
125 if (strcmp(ap[0], "-o") == 0) {
126 last_expr = expr;
127 last_cmp = 0;
128 } else if (strcmp(ap[0], "-a") == 0) {
129 last_expr = expr;
130 last_cmp = 1;
131 } else {
132 expr = 1;
133 break;
134 }
135 }
136
137 if (adv == 2) {
138 if (strcmp(ap[0], "-z") == 0)
wdenkc26e4542004-04-18 10:13:26 +0000139 expr = strlen(ap[1]) == 0 ? 1 : 0;
wdenk20787e22005-04-06 00:04:16 +0000140 else if (strcmp(ap[0], "-n") == 0)
141 expr = strlen(ap[1]) == 0 ? 0 : 1;
wdenkc26e4542004-04-18 10:13:26 +0000142 else {
143 expr = 1;
144 break;
145 }
146
147 if (last_cmp == 0)
148 expr = last_expr || expr;
149 else if (last_cmp == 1)
150 expr = last_expr && expr;
151 last_cmp = -1;
152 }
153
154 if (adv == 3) {
155 if (strcmp(ap[1], "=") == 0)
156 expr = strcmp(ap[0], ap[2]) == 0;
157 else if (strcmp(ap[1], "!=") == 0)
158 expr = strcmp(ap[0], ap[2]) != 0;
159 else 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], "-eq") == 0)
164 expr = simple_strtol(ap[0], NULL, 10) == simple_strtol(ap[2], NULL, 10);
165 else if (strcmp(ap[1], "-ne") == 0)
166 expr = simple_strtol(ap[0], NULL, 10) != simple_strtol(ap[2], NULL, 10);
167 else if (strcmp(ap[1], "-lt") == 0)
168 expr = simple_strtol(ap[0], NULL, 10) < simple_strtol(ap[2], NULL, 10);
169 else if (strcmp(ap[1], "-le") == 0)
170 expr = simple_strtol(ap[0], NULL, 10) <= simple_strtol(ap[2], NULL, 10);
171 else if (strcmp(ap[1], "-gt") == 0)
172 expr = simple_strtol(ap[0], NULL, 10) > simple_strtol(ap[2], NULL, 10);
173 else if (strcmp(ap[1], "-ge") == 0)
174 expr = simple_strtol(ap[0], NULL, 10) >= simple_strtol(ap[2], NULL, 10);
175 else {
176 expr = 1;
177 break;
178 }
179
180 if (last_cmp == 0)
181 expr = last_expr || expr;
182 else if (last_cmp == 1)
183 expr = last_expr && expr;
184 last_cmp = -1;
185 }
186
187 ap += adv; left -= adv;
188 }
189
190 if (neg)
191 expr = !expr;
192
193 expr = !expr;
194
195#if 0
196 printf(": returns %d\n", expr);
197#endif
198
199 return expr;
200}
201
202U_BOOT_CMD(
203 test, CFG_MAXARGS, 1, do_test,
204 "test - minimal test like /bin/sh\n",
205 "[args..]\n"
206 " - test functionality\n"
207);
208
209int
210do_exit (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
211{
212 int r;
213
214 r = 0;
215 if (argc > 1)
216 r = simple_strtoul(argv[1], NULL, 10);
217
218 return -r - 2;
219}
220
221U_BOOT_CMD(
222 exit, 2, 1, do_exit,
223 "exit - exit script\n",
224 " - exit functionality\n"
225);
226
227
228#endif
229
wdenk5dfa25f2002-10-19 19:42:10 +0000230/*
231 * Use puts() instead of printf() to avoid printf buffer overflow
232 * for long help messages
233 */
wdenk8bde7f72003-06-27 21:31:46 +0000234int do_help (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
wdenk5dfa25f2002-10-19 19:42:10 +0000235{
236 int i;
237 int rcode = 0;
238
wdenk8bde7f72003-06-27 21:31:46 +0000239 if (argc == 1) { /*show list of commands */
wdenk5dfa25f2002-10-19 19:42:10 +0000240
wdenk9d2b18a2003-06-28 23:11:04 +0000241 int cmd_items = &__u_boot_cmd_end -
242 &__u_boot_cmd_start; /* pointer arith! */
243 cmd_tbl_t *cmd_array[cmd_items];
244 int i, j, swaps;
wdenk8bde7f72003-06-27 21:31:46 +0000245
wdenk9d2b18a2003-06-28 23:11:04 +0000246 /* Make array of commands from .uboot_cmd section */
247 cmdtp = &__u_boot_cmd_start;
248 for (i = 0; i < cmd_items; i++) {
249 cmd_array[i] = cmdtp++;
wdenk8bde7f72003-06-27 21:31:46 +0000250 }
wdenk8bde7f72003-06-27 21:31:46 +0000251
wdenk9d2b18a2003-06-28 23:11:04 +0000252 /* Sort command list (trivial bubble sort) */
253 for (i = cmd_items - 1; i > 0; --i) {
254 swaps = 0;
255 for (j = 0; j < i; ++j) {
256 if (strcmp (cmd_array[j]->name,
257 cmd_array[j + 1]->name) > 0) {
258 cmd_tbl_t *tmp;
259 tmp = cmd_array[j];
260 cmd_array[j] = cmd_array[j + 1];
261 cmd_array[j + 1] = tmp;
262 ++swaps;
263 }
wdenk8bde7f72003-06-27 21:31:46 +0000264 }
wdenk9d2b18a2003-06-28 23:11:04 +0000265 if (!swaps)
266 break;
wdenk8bde7f72003-06-27 21:31:46 +0000267 }
268
269 /* print short help (usage) */
wdenk9d2b18a2003-06-28 23:11:04 +0000270 for (i = 0; i < cmd_items; i++) {
271 const char *usage = cmd_array[i]->usage;
272
wdenk5dfa25f2002-10-19 19:42:10 +0000273 /* allow user abort */
wdenk8bde7f72003-06-27 21:31:46 +0000274 if (ctrlc ())
wdenk5dfa25f2002-10-19 19:42:10 +0000275 return 1;
wdenk9d2b18a2003-06-28 23:11:04 +0000276 if (usage == NULL)
wdenk5dfa25f2002-10-19 19:42:10 +0000277 continue;
wdenk9d2b18a2003-06-28 23:11:04 +0000278 puts (usage);
wdenk5dfa25f2002-10-19 19:42:10 +0000279 }
wdenk5dfa25f2002-10-19 19:42:10 +0000280 return 0;
281 }
wdenk5dfa25f2002-10-19 19:42:10 +0000282 /*
283 * command help (long version)
284 */
wdenk8bde7f72003-06-27 21:31:46 +0000285 for (i = 1; i < argc; ++i) {
286 if ((cmdtp = find_cmd (argv[i])) != NULL) {
wdenk5dfa25f2002-10-19 19:42:10 +0000287#ifdef CFG_LONGHELP
288 /* found - print (long) help info */
289 puts (cmdtp->name);
290 putc (' ');
291 if (cmdtp->help) {
292 puts (cmdtp->help);
293 } else {
294 puts ("- No help available.\n");
295 rcode = 1;
296 }
297 putc ('\n');
298#else /* no long help available */
299 if (cmdtp->usage)
300 puts (cmdtp->usage);
301#endif /* CFG_LONGHELP */
wdenk71f95112003-06-15 22:40:42 +0000302 } else {
wdenk5dfa25f2002-10-19 19:42:10 +0000303 printf ("Unknown command '%s' - try 'help'"
304 " without arguments for list of all"
wdenk8bde7f72003-06-27 21:31:46 +0000305 " known commands\n\n", argv[i]
306 );
wdenk5dfa25f2002-10-19 19:42:10 +0000307 rcode = 1;
308 }
309 }
310 return rcode;
311}
312
wdenk8bde7f72003-06-27 21:31:46 +0000313
wdenk0d498392003-07-01 21:06:45 +0000314U_BOOT_CMD(
315 help, CFG_MAXARGS, 1, do_help,
wdenk8bde7f72003-06-27 21:31:46 +0000316 "help - print online help\n",
317 "[command ...]\n"
318 " - show help information (for 'command')\n"
319 "'help' prints online help for the monitor commands.\n\n"
320 "Without arguments, it prints a short usage message for all commands.\n\n"
321 "To get detailed help information for specific commands you can type\n"
322 "'help' with one or more command names as arguments.\n"
323);
324
wdenk0d498392003-07-01 21:06:45 +0000325/* This do not ust the U_BOOT_CMD macro as ? can't be used in symbol names */
326#ifdef CFG_LONGHELP
327cmd_tbl_t __u_boot_cmd_question_mark Struct_Section = {
wdenk8bde7f72003-06-27 21:31:46 +0000328 "?", CFG_MAXARGS, 1, do_help,
329 "? - alias for 'help'\n",
330 NULL
wdenk0d498392003-07-01 21:06:45 +0000331};
332#else
333cmd_tbl_t __u_boot_cmd_question_mark Struct_Section = {
334 "?", CFG_MAXARGS, 1, do_help,
335 "? - alias for 'help'\n"
336};
337#endif /* CFG_LONGHELP */
wdenk8bde7f72003-06-27 21:31:46 +0000338
wdenk5dfa25f2002-10-19 19:42:10 +0000339/***************************************************************************
340 * find command table entry for a command
341 */
wdenk8bde7f72003-06-27 21:31:46 +0000342cmd_tbl_t *find_cmd (const char *cmd)
wdenk5dfa25f2002-10-19 19:42:10 +0000343{
344 cmd_tbl_t *cmdtp;
wdenk8bde7f72003-06-27 21:31:46 +0000345 cmd_tbl_t *cmdtp_temp = &__u_boot_cmd_start; /*Init value */
wdenk9d2b18a2003-06-28 23:11:04 +0000346 const char *p;
347 int len;
348 int n_found = 0;
wdenk8bde7f72003-06-27 21:31:46 +0000349
wdenk9d2b18a2003-06-28 23:11:04 +0000350 /*
351 * Some commands allow length modifiers (like "cp.b");
352 * compare command name only until first dot.
353 */
354 len = ((p = strchr(cmd, '.')) == NULL) ? strlen (cmd) : (p - cmd);
355
356 for (cmdtp = &__u_boot_cmd_start;
357 cmdtp != &__u_boot_cmd_end;
358 cmdtp++) {
359 if (strncmp (cmd, cmdtp->name, len) == 0) {
360 if (len == strlen (cmdtp->name))
361 return cmdtp; /* full match */
362
363 cmdtp_temp = cmdtp; /* abbreviated command ? */
364 n_found++;
365 }
wdenk5dfa25f2002-10-19 19:42:10 +0000366 }
wdenk9d2b18a2003-06-28 23:11:04 +0000367 if (n_found == 1) { /* exactly one match */
wdenk8bde7f72003-06-27 21:31:46 +0000368 return cmdtp_temp;
wdenk9d2b18a2003-06-28 23:11:04 +0000369 }
wdenk8bde7f72003-06-27 21:31:46 +0000370
wdenk9d2b18a2003-06-28 23:11:04 +0000371 return NULL; /* not found or ambiguous command */
wdenk5dfa25f2002-10-19 19:42:10 +0000372}
wdenk04a85b32004-04-15 18:22:41 +0000373
374#ifdef CONFIG_AUTO_COMPLETE
375
376int var_complete(int argc, char *argv[], char last_char, int maxv, char *cmdv[])
377{
378 static char tmp_buf[512];
379 int space;
380
381 space = last_char == '\0' || last_char == ' ' || last_char == '\t';
382
383 if (space && argc == 1)
384 return env_complete("", maxv, cmdv, sizeof(tmp_buf), tmp_buf);
385
386 if (!space && argc == 2)
387 return env_complete(argv[1], maxv, cmdv, sizeof(tmp_buf), tmp_buf);
388
389 return 0;
390}
391
392static void install_auto_complete_handler(const char *cmd,
393 int (*complete)(int argc, char *argv[], char last_char, int maxv, char *cmdv[]))
394{
395 cmd_tbl_t *cmdtp;
396
397 cmdtp = find_cmd(cmd);
398 if (cmdtp == NULL)
399 return;
400
401 cmdtp->complete = complete;
402}
403
404void install_auto_complete(void)
405{
406 install_auto_complete_handler("printenv", var_complete);
407 install_auto_complete_handler("setenv", var_complete);
408#if (CONFIG_COMMANDS & CFG_CMD_RUN)
409 install_auto_complete_handler("run", var_complete);
410#endif
411}
412
413/*************************************************************************************/
414
415static int complete_cmdv(int argc, char *argv[], char last_char, int maxv, char *cmdv[])
416{
417 cmd_tbl_t *cmdtp;
418 const char *p;
419 int len, clen;
420 int n_found = 0;
421 const char *cmd;
422
423 /* sanity? */
424 if (maxv < 2)
425 return -2;
426
427 cmdv[0] = NULL;
428
429 if (argc == 0) {
430 /* output full list of commands */
431 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
432 if (n_found >= maxv - 2) {
433 cmdv[n_found++] = "...";
434 break;
435 }
436 cmdv[n_found++] = cmdtp->name;
437 }
438 cmdv[n_found] = NULL;
439 return n_found;
440 }
441
442 /* more than one arg or one but the start of the next */
443 if (argc > 1 || (last_char == '\0' || last_char == ' ' || last_char == '\t')) {
444 cmdtp = find_cmd(argv[0]);
445 if (cmdtp == NULL || cmdtp->complete == NULL) {
446 cmdv[0] = NULL;
447 return 0;
448 }
449 return (*cmdtp->complete)(argc, argv, last_char, maxv, cmdv);
450 }
451
452 cmd = argv[0];
453 /*
454 * Some commands allow length modifiers (like "cp.b");
455 * compare command name only until first dot.
456 */
457 p = strchr(cmd, '.');
458 if (p == NULL)
459 len = strlen(cmd);
460 else
461 len = p - cmd;
462
463 /* return the partial matches */
464 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
465
466 clen = strlen(cmdtp->name);
467 if (clen < len)
468 continue;
469
470 if (memcmp(cmd, cmdtp->name, len) != 0)
471 continue;
472
473 /* too many! */
474 if (n_found >= maxv - 2) {
475 cmdv[n_found++] = "...";
476 break;
477 }
478
479 cmdv[n_found++] = cmdtp->name;
480 }
481
482 cmdv[n_found] = NULL;
483 return n_found;
484}
485
486static int make_argv(char *s, int argvsz, char *argv[])
487{
488 int argc = 0;
489
490 /* split into argv */
491 while (argc < argvsz - 1) {
492
493 /* skip any white space */
494 while ((*s == ' ') || (*s == '\t'))
495 ++s;
496
497 if (*s == '\0') /* end of s, no more args */
498 break;
499
500 argv[argc++] = s; /* begin of argument string */
501
502 /* find end of string */
503 while (*s && (*s != ' ') && (*s != '\t'))
504 ++s;
505
506 if (*s == '\0') /* end of s, no more args */
507 break;
508
509 *s++ = '\0'; /* terminate current arg */
510 }
511 argv[argc] = NULL;
512
513 return argc;
514}
515
516static void print_argv(const char *banner, const char *leader, const char *sep, int linemax, char *argv[])
517{
518 int ll = leader != NULL ? strlen(leader) : 0;
519 int sl = sep != NULL ? strlen(sep) : 0;
520 int len, i;
521
522 if (banner) {
523 puts("\n");
524 puts(banner);
525 }
526
527 i = linemax; /* force leader and newline */
528 while (*argv != NULL) {
529 len = strlen(*argv) + sl;
530 if (i + len >= linemax) {
531 puts("\n");
532 if (leader)
533 puts(leader);
534 i = ll - sl;
535 } else if (sep)
536 puts(sep);
537 puts(*argv++);
538 i += len;
539 }
540 printf("\n");
541}
542
543static int find_common_prefix(char *argv[])
544{
545 int i, len;
546 char *anchor, *s, *t;
547
548 if (*argv == NULL)
549 return 0;
550
551 /* begin with max */
552 anchor = *argv++;
553 len = strlen(anchor);
554 while ((t = *argv++) != NULL) {
555 s = anchor;
556 for (i = 0; i < len; i++, t++, s++) {
557 if (*t != *s)
558 break;
559 }
560 len = s - anchor;
561 }
562 return len;
563}
564
565static char tmp_buf[CFG_CBSIZE]; /* copy of console I/O buffer */
566
567int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp)
568{
569 int n = *np, col = *colp;
570 char *argv[CFG_MAXARGS + 1]; /* NULL terminated */
571 char *cmdv[20];
572 char *s, *t;
573 const char *sep;
574 int i, j, k, len, seplen, argc;
575 int cnt;
576 char last_char;
577
578 if (strcmp(prompt, CFG_PROMPT) != 0)
579 return 0; /* not in normal console */
580
581 cnt = strlen(buf);
582 if (cnt >= 1)
583 last_char = buf[cnt - 1];
584 else
585 last_char = '\0';
586
587 /* copy to secondary buffer which will be affected */
588 strcpy(tmp_buf, buf);
589
590 /* separate into argv */
591 argc = make_argv(tmp_buf, sizeof(argv)/sizeof(argv[0]), argv);
592
593 /* do the completion and return the possible completions */
594 i = complete_cmdv(argc, argv, last_char, sizeof(cmdv)/sizeof(cmdv[0]), cmdv);
595
596 /* no match; bell and out */
597 if (i == 0) {
598 if (argc > 1) /* allow tab for non command */
599 return 0;
600 putc('\a');
601 return 1;
602 }
603
604 s = NULL;
605 len = 0;
606 sep = NULL;
607 seplen = 0;
608 if (i == 1) { /* one match; perfect */
609 k = strlen(argv[argc - 1]);
610 s = cmdv[0] + k;
611 len = strlen(s);
612 sep = " ";
613 seplen = 1;
614 } else if (i > 1 && (j = find_common_prefix(cmdv)) != 0) { /* more */
615 k = strlen(argv[argc - 1]);
616 j -= k;
617 if (j > 0) {
618 s = cmdv[0] + k;
619 len = j;
620 }
621 }
622
623 if (s != NULL) {
624 k = len + seplen;
625 /* make sure it fits */
626 if (n + k >= CFG_CBSIZE - 2) {
627 putc('\a');
628 return 1;
629 }
630
631 t = buf + cnt;
632 for (i = 0; i < len; i++)
633 *t++ = *s++;
634 if (sep != NULL)
635 for (i = 0; i < seplen; i++)
636 *t++ = sep[i];
637 *t = '\0';
638 n += k;
639 col += k;
640 puts(t - k);
641 if (sep == NULL)
642 putc('\a');
643 *np = n;
644 *colp = col;
645 } else {
646 print_argv(NULL, " ", " ", 78, cmdv);
647
648 puts(prompt);
649 puts(buf);
650 }
651 return 1;
652}
653
654#endif