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, CONFIG_SYS_MAXARGS, 1, do_echo,
74 "echo - echo args to console\n",
76 " - echo args to console; \\c suppresses newline\n"
81 #ifdef CONFIG_SYS_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;
199 debug (": returns %d\n", expr);
205 test, CONFIG_SYS_MAXARGS, 1, do_test,
206 "test - minimal test like /bin/sh\n",
208 " - test functionality\n"
212 do_exit (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
218 r = simple_strtoul(argv[1], NULL, 10);
225 "exit - exit script\n",
226 " - exit functionality\n"
233 * Use puts() instead of printf() to avoid printf buffer overflow
234 * for long help messages
236 int do_help (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
241 if (argc == 1) { /*show list of commands */
243 int cmd_items = &__u_boot_cmd_end -
244 &__u_boot_cmd_start; /* pointer arith! */
245 cmd_tbl_t *cmd_array[cmd_items];
248 /* Make array of commands from .uboot_cmd section */
249 cmdtp = &__u_boot_cmd_start;
250 for (i = 0; i < cmd_items; i++) {
251 cmd_array[i] = cmdtp++;
254 /* Sort command list (trivial bubble sort) */
255 for (i = cmd_items - 1; i > 0; --i) {
257 for (j = 0; j < i; ++j) {
258 if (strcmp (cmd_array[j]->name,
259 cmd_array[j + 1]->name) > 0) {
262 cmd_array[j] = cmd_array[j + 1];
263 cmd_array[j + 1] = tmp;
271 /* print short help (usage) */
272 for (i = 0; i < cmd_items; i++) {
273 const char *usage = cmd_array[i]->usage;
275 /* allow user abort */
285 * command help (long version)
287 for (i = 1; i < argc; ++i) {
288 if ((cmdtp = find_cmd (argv[i])) != NULL) {
289 #ifdef CONFIG_SYS_LONGHELP
290 /* found - print (long) help info */
296 puts ("- No help available.\n");
300 #else /* no long help available */
303 #endif /* CONFIG_SYS_LONGHELP */
305 printf ("Unknown command '%s' - try 'help'"
306 " without arguments for list of all"
307 " known commands\n\n", argv[i]
317 help, CONFIG_SYS_MAXARGS, 1, do_help,
318 "help - print online help\n",
320 " - show help information (for 'command')\n"
321 "'help' prints online help for the monitor commands.\n\n"
322 "Without arguments, it prints a short usage message for all commands.\n\n"
323 "To get detailed help information for specific commands you can type\n"
324 "'help' with one or more command names as arguments.\n"
327 /* This do not ust the U_BOOT_CMD macro as ? can't be used in symbol names */
328 #ifdef CONFIG_SYS_LONGHELP
329 cmd_tbl_t __u_boot_cmd_question_mark Struct_Section = {
330 "?", CONFIG_SYS_MAXARGS, 1, do_help,
331 "? - alias for 'help'\n",
335 cmd_tbl_t __u_boot_cmd_question_mark Struct_Section = {
336 "?", CONFIG_SYS_MAXARGS, 1, do_help,
337 "? - alias for 'help'\n"
339 #endif /* CONFIG_SYS_LONGHELP */
341 /***************************************************************************
342 * find command table entry for a command
344 cmd_tbl_t *find_cmd_tbl (const char *cmd, cmd_tbl_t *table, int table_len)
347 cmd_tbl_t *cmdtp_temp = table; /*Init value */
353 * Some commands allow length modifiers (like "cp.b");
354 * compare command name only until first dot.
356 len = ((p = strchr(cmd, '.')) == NULL) ? strlen (cmd) : (p - cmd);
359 cmdtp != table + table_len;
361 if (strncmp (cmd, cmdtp->name, len) == 0) {
362 if (len == strlen (cmdtp->name))
363 return cmdtp; /* full match */
365 cmdtp_temp = cmdtp; /* abbreviated command ? */
369 if (n_found == 1) { /* exactly one match */
373 return NULL; /* not found or ambiguous command */
376 cmd_tbl_t *find_cmd (const char *cmd)
378 int len = &__u_boot_cmd_end - &__u_boot_cmd_start;
379 return find_cmd_tbl(cmd, &__u_boot_cmd_start, len);
382 #ifdef CONFIG_AUTO_COMPLETE
384 int var_complete(int argc, char *argv[], char last_char, int maxv, char *cmdv[])
386 static char tmp_buf[512];
389 space = last_char == '\0' || last_char == ' ' || last_char == '\t';
391 if (space && argc == 1)
392 return env_complete("", maxv, cmdv, sizeof(tmp_buf), tmp_buf);
394 if (!space && argc == 2)
395 return env_complete(argv[1], maxv, cmdv, sizeof(tmp_buf), tmp_buf);
400 static void install_auto_complete_handler(const char *cmd,
401 int (*complete)(int argc, char *argv[], char last_char, int maxv, char *cmdv[]))
405 cmdtp = find_cmd(cmd);
409 cmdtp->complete = complete;
412 void install_auto_complete(void)
414 install_auto_complete_handler("printenv", var_complete);
415 install_auto_complete_handler("setenv", var_complete);
416 #if defined(CONFIG_CMD_RUN)
417 install_auto_complete_handler("run", var_complete);
421 /*************************************************************************************/
423 static int complete_cmdv(int argc, char *argv[], char last_char, int maxv, char *cmdv[])
438 /* output full list of commands */
439 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
440 if (n_found >= maxv - 2) {
441 cmdv[n_found++] = "...";
444 cmdv[n_found++] = cmdtp->name;
446 cmdv[n_found] = NULL;
450 /* more than one arg or one but the start of the next */
451 if (argc > 1 || (last_char == '\0' || last_char == ' ' || last_char == '\t')) {
452 cmdtp = find_cmd(argv[0]);
453 if (cmdtp == NULL || cmdtp->complete == NULL) {
457 return (*cmdtp->complete)(argc, argv, last_char, maxv, cmdv);
462 * Some commands allow length modifiers (like "cp.b");
463 * compare command name only until first dot.
465 p = strchr(cmd, '.');
471 /* return the partial matches */
472 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
474 clen = strlen(cmdtp->name);
478 if (memcmp(cmd, cmdtp->name, len) != 0)
482 if (n_found >= maxv - 2) {
483 cmdv[n_found++] = "...";
487 cmdv[n_found++] = cmdtp->name;
490 cmdv[n_found] = NULL;
494 static int make_argv(char *s, int argvsz, char *argv[])
498 /* split into argv */
499 while (argc < argvsz - 1) {
501 /* skip any white space */
502 while ((*s == ' ') || (*s == '\t'))
505 if (*s == '\0') /* end of s, no more args */
508 argv[argc++] = s; /* begin of argument string */
510 /* find end of string */
511 while (*s && (*s != ' ') && (*s != '\t'))
514 if (*s == '\0') /* end of s, no more args */
517 *s++ = '\0'; /* terminate current arg */
524 static void print_argv(const char *banner, const char *leader, const char *sep, int linemax, char *argv[])
526 int ll = leader != NULL ? strlen(leader) : 0;
527 int sl = sep != NULL ? strlen(sep) : 0;
535 i = linemax; /* force leader and newline */
536 while (*argv != NULL) {
537 len = strlen(*argv) + sl;
538 if (i + len >= linemax) {
551 static int find_common_prefix(char *argv[])
554 char *anchor, *s, *t;
561 len = strlen(anchor);
562 while ((t = *argv++) != NULL) {
564 for (i = 0; i < len; i++, t++, s++) {
573 static char tmp_buf[CONFIG_SYS_CBSIZE]; /* copy of console I/O buffer */
575 int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp)
577 int n = *np, col = *colp;
578 char *argv[CONFIG_SYS_MAXARGS + 1]; /* NULL terminated */
582 int i, j, k, len, seplen, argc;
586 if (strcmp(prompt, CONFIG_SYS_PROMPT) != 0)
587 return 0; /* not in normal console */
591 last_char = buf[cnt - 1];
595 /* copy to secondary buffer which will be affected */
596 strcpy(tmp_buf, buf);
598 /* separate into argv */
599 argc = make_argv(tmp_buf, sizeof(argv)/sizeof(argv[0]), argv);
601 /* do the completion and return the possible completions */
602 i = complete_cmdv(argc, argv, last_char, sizeof(cmdv)/sizeof(cmdv[0]), cmdv);
604 /* no match; bell and out */
606 if (argc > 1) /* allow tab for non command */
616 if (i == 1) { /* one match; perfect */
617 k = strlen(argv[argc - 1]);
622 } else if (i > 1 && (j = find_common_prefix(cmdv)) != 0) { /* more */
623 k = strlen(argv[argc - 1]);
633 /* make sure it fits */
634 if (n + k >= CONFIG_SYS_CBSIZE - 2) {
640 for (i = 0; i < len; i++)
643 for (i = 0; i < seplen; i++)
654 print_argv(NULL, " ", " ", 78, cmdv);
665 int cmd_get_data_size(char* arg, int default_size)
667 /* Check for a size specification .b, .w or .l.
669 int len = strlen(arg);
670 if (len > 2 && arg[len-2] == '.') {