2 * (C) Copyright 2000-2003
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
25 * Command Processor Table
32 do_version (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
34 extern char version_string
[];
35 printf ("\n%s\n", version_string
);
40 version
, 1, 1, do_version
,
41 "version - print monitor version\n",
45 #if defined(CONFIG_CMD_ECHO)
48 do_echo (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
52 for (i
= 1; i
< argc
; i
++) {
57 while ((c
= *p
++) != '\0') {
58 if (c
== '\\' && *p
== 'c') {
73 echo
, CFG_MAXARGS
, 1, do_echo
,
74 "echo - echo args to console\n",
76 " - echo args to console; \\c suppresses newline\n"
81 #ifdef CFG_HUSH_PARSER
84 do_test (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
87 int left
, adv
, expr
, last_expr
, neg
, last_cmp
;
98 printf(" %s", argv
[left
++]);
103 left
= argc
- 1; ap
= argv
+ 1;
104 if (left
> 0 && strcmp(ap
[0], "!") == 0) {
116 if (strcmp(ap
[0], "-o") == 0 || strcmp(ap
[0], "-a") == 0)
118 else if (strcmp(ap
[0], "-z") == 0 || strcmp(ap
[0], "-n") == 0)
129 if (strcmp(ap
[0], "-o") == 0) {
132 } else if (strcmp(ap
[0], "-a") == 0) {
142 if (strcmp(ap
[0], "-z") == 0)
143 expr
= strlen(ap
[1]) == 0 ? 1 : 0;
144 else if (strcmp(ap
[0], "-n") == 0)
145 expr
= strlen(ap
[1]) == 0 ? 0 : 1;
152 expr
= last_expr
|| expr
;
153 else if (last_cmp
== 1)
154 expr
= last_expr
&& expr
;
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);
185 expr
= last_expr
|| expr
;
186 else if (last_cmp
== 1)
187 expr
= last_expr
&& expr
;
191 ap
+= adv
; left
-= adv
;
200 printf(": returns %d\n", expr
);
207 test
, CFG_MAXARGS
, 1, do_test
,
208 "test - minimal test like /bin/sh\n",
210 " - test functionality\n"
214 do_exit (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
220 r
= simple_strtoul(argv
[1], NULL
, 10);
227 "exit - exit script\n",
228 " - exit functionality\n"
235 * Use puts() instead of printf() to avoid printf buffer overflow
236 * for long help messages
238 int do_help (cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
243 if (argc
== 1) { /*show list of commands */
245 int cmd_items
= &__u_boot_cmd_end
-
246 &__u_boot_cmd_start
; /* pointer arith! */
247 cmd_tbl_t
*cmd_array
[cmd_items
];
250 /* 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
++;
256 /* Sort command list (trivial bubble sort) */
257 for (i
= cmd_items
- 1; i
> 0; --i
) {
259 for (j
= 0; j
< i
; ++j
) {
260 if (strcmp (cmd_array
[j
]->name
,
261 cmd_array
[j
+ 1]->name
) > 0) {
264 cmd_array
[j
] = cmd_array
[j
+ 1];
265 cmd_array
[j
+ 1] = tmp
;
273 /* print short help (usage) */
274 for (i
= 0; i
< cmd_items
; i
++) {
275 const char *usage
= cmd_array
[i
]->usage
;
277 /* allow user abort */
287 * command help (long version)
289 for (i
= 1; i
< argc
; ++i
) {
290 if ((cmdtp
= find_cmd (argv
[i
])) != NULL
) {
292 /* found - print (long) help info */
298 puts ("- No help available.\n");
302 #else /* no long help available */
305 #endif /* CFG_LONGHELP */
307 printf ("Unknown command '%s' - try 'help'"
308 " without arguments for list of all"
309 " known commands\n\n", argv
[i
]
319 help
, CFG_MAXARGS
, 1, do_help
,
320 "help - print online help\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"
329 /* This do not ust the U_BOOT_CMD macro as ? can't be used in symbol names */
331 cmd_tbl_t __u_boot_cmd_question_mark Struct_Section
= {
332 "?", CFG_MAXARGS
, 1, do_help
,
333 "? - alias for 'help'\n",
337 cmd_tbl_t __u_boot_cmd_question_mark Struct_Section
= {
338 "?", CFG_MAXARGS
, 1, do_help
,
339 "? - alias for 'help'\n"
341 #endif /* CFG_LONGHELP */
343 /***************************************************************************
344 * find command table entry for a command
346 cmd_tbl_t
*find_cmd (const char *cmd
)
349 cmd_tbl_t
*cmdtp_temp
= &__u_boot_cmd_start
; /*Init value */
355 * Some commands allow length modifiers (like "cp.b");
356 * compare command name only until first dot.
358 len
= ((p
= strchr(cmd
, '.')) == NULL
) ? strlen (cmd
) : (p
- cmd
);
360 for (cmdtp
= &__u_boot_cmd_start
;
361 cmdtp
!= &__u_boot_cmd_end
;
363 if (strncmp (cmd
, cmdtp
->name
, len
) == 0) {
364 if (len
== strlen (cmdtp
->name
))
365 return cmdtp
; /* full match */
367 cmdtp_temp
= cmdtp
; /* abbreviated command ? */
371 if (n_found
== 1) { /* exactly one match */
375 return NULL
; /* not found or ambiguous command */
378 #ifdef CONFIG_AUTO_COMPLETE
380 int var_complete(int argc
, char *argv
[], char last_char
, int maxv
, char *cmdv
[])
382 static char tmp_buf
[512];
385 space
= last_char
== '\0' || last_char
== ' ' || last_char
== '\t';
387 if (space
&& argc
== 1)
388 return env_complete("", maxv
, cmdv
, sizeof(tmp_buf
), tmp_buf
);
390 if (!space
&& argc
== 2)
391 return env_complete(argv
[1], maxv
, cmdv
, sizeof(tmp_buf
), tmp_buf
);
396 static void install_auto_complete_handler(const char *cmd
,
397 int (*complete
)(int argc
, char *argv
[], char last_char
, int maxv
, char *cmdv
[]))
401 cmdtp
= find_cmd(cmd
);
405 cmdtp
->complete
= complete
;
408 void install_auto_complete(void)
410 install_auto_complete_handler("printenv", var_complete
);
411 install_auto_complete_handler("setenv", var_complete
);
412 #if defined(CONFIG_CMD_RUN)
413 install_auto_complete_handler("run", var_complete
);
417 /*************************************************************************************/
419 static int complete_cmdv(int argc
, char *argv
[], char last_char
, int maxv
, char *cmdv
[])
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
++] = "...";
440 cmdv
[n_found
++] = cmdtp
->name
;
442 cmdv
[n_found
] = NULL
;
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
) {
453 return (*cmdtp
->complete
)(argc
, argv
, last_char
, maxv
, cmdv
);
458 * Some commands allow length modifiers (like "cp.b");
459 * compare command name only until first dot.
461 p
= strchr(cmd
, '.');
467 /* return the partial matches */
468 for (cmdtp
= &__u_boot_cmd_start
; cmdtp
!= &__u_boot_cmd_end
; cmdtp
++) {
470 clen
= strlen(cmdtp
->name
);
474 if (memcmp(cmd
, cmdtp
->name
, len
) != 0)
478 if (n_found
>= maxv
- 2) {
479 cmdv
[n_found
++] = "...";
483 cmdv
[n_found
++] = cmdtp
->name
;
486 cmdv
[n_found
] = NULL
;
490 static int make_argv(char *s
, int argvsz
, char *argv
[])
494 /* split into argv */
495 while (argc
< argvsz
- 1) {
497 /* skip any white space */
498 while ((*s
== ' ') || (*s
== '\t'))
501 if (*s
== '\0') /* end of s, no more args */
504 argv
[argc
++] = s
; /* begin of argument string */
506 /* find end of string */
507 while (*s
&& (*s
!= ' ') && (*s
!= '\t'))
510 if (*s
== '\0') /* end of s, no more args */
513 *s
++ = '\0'; /* terminate current arg */
520 static void print_argv(const char *banner
, const char *leader
, const char *sep
, int linemax
, char *argv
[])
522 int ll
= leader
!= NULL
? strlen(leader
) : 0;
523 int sl
= sep
!= NULL
? strlen(sep
) : 0;
531 i
= linemax
; /* force leader and newline */
532 while (*argv
!= NULL
) {
533 len
= strlen(*argv
) + sl
;
534 if (i
+ len
>= linemax
) {
547 static int find_common_prefix(char *argv
[])
550 char *anchor
, *s
, *t
;
557 len
= strlen(anchor
);
558 while ((t
= *argv
++) != NULL
) {
560 for (i
= 0; i
< len
; i
++, t
++, s
++) {
569 static char tmp_buf
[CFG_CBSIZE
]; /* copy of console I/O buffer */
571 int cmd_auto_complete(const char *const prompt
, char *buf
, int *np
, int *colp
)
573 int n
= *np
, col
= *colp
;
574 char *argv
[CFG_MAXARGS
+ 1]; /* NULL terminated */
578 int i
, j
, k
, len
, seplen
, argc
;
582 if (strcmp(prompt
, CFG_PROMPT
) != 0)
583 return 0; /* not in normal console */
587 last_char
= buf
[cnt
- 1];
591 /* copy to secondary buffer which will be affected */
592 strcpy(tmp_buf
, buf
);
594 /* separate into argv */
595 argc
= make_argv(tmp_buf
, sizeof(argv
)/sizeof(argv
[0]), argv
);
597 /* do the completion and return the possible completions */
598 i
= complete_cmdv(argc
, argv
, last_char
, sizeof(cmdv
)/sizeof(cmdv
[0]), cmdv
);
600 /* no match; bell and out */
602 if (argc
> 1) /* allow tab for non command */
612 if (i
== 1) { /* one match; perfect */
613 k
= strlen(argv
[argc
- 1]);
618 } else if (i
> 1 && (j
= find_common_prefix(cmdv
)) != 0) { /* more */
619 k
= strlen(argv
[argc
- 1]);
629 /* make sure it fits */
630 if (n
+ k
>= CFG_CBSIZE
- 2) {
636 for (i
= 0; i
< len
; i
++)
639 for (i
= 0; i
< seplen
; i
++)
650 print_argv(NULL
, " ", " ", 78, cmdv
);