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",
46 do_echo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
50 for (i = 1; i < argc; i++) {
55 while ((c = *p++) != '\0') {
56 if (c == '\\' && *p == 'c') {
71 echo, CFG_MAXARGS, 1, do_echo,
72 "echo - echo args to console\n",
74 " - echo args to console; \\c suppresses newline\n"
77 #ifdef CFG_HUSH_PARSER
80 do_test (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
83 int left, adv, expr, last_expr, neg, last_cmp;
94 printf(" %s", argv[left++]);
99 left = argc - 1; ap = argv + 1;
100 if (left > 0 && strcmp(ap[0], "!") == 0) {
112 if (strcmp(ap[0], "-o") == 0 || strcmp(ap[0], "-a") == 0)
114 else if (strcmp(ap[0], "-z") == 0 || strcmp(ap[0], "-n") == 0)
125 if (strcmp(ap[0], "-o") == 0) {
128 } else if (strcmp(ap[0], "-a") == 0) {
138 if (strcmp(ap[0], "-z") == 0)
139 expr = strlen(ap[1]) == 0 ? 1 : 0;
140 else if (strcmp(ap[0], "-n") == 0)
141 expr = strlen(ap[1]) == 0 ? 0 : 1;
148 expr = last_expr || expr;
149 else if (last_cmp == 1)
150 expr = last_expr && expr;
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);
181 expr = last_expr || expr;
182 else if (last_cmp == 1)
183 expr = last_expr && expr;
187 ap += adv; left -= adv;
196 printf(": returns %d\n", expr);
203 test, CFG_MAXARGS, 1, do_test,
204 "test - minimal test like /bin/sh\n",
206 " - test functionality\n"
210 do_exit (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
216 r = simple_strtoul(argv[1], NULL, 10);
223 "exit - exit script\n",
224 " - exit functionality\n"
231 * Use puts() instead of printf() to avoid printf buffer overflow
232 * for long help messages
234 int do_help (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
239 if (argc == 1) { /*show list of commands */
241 int cmd_items = &__u_boot_cmd_end -
242 &__u_boot_cmd_start; /* pointer arith! */
243 cmd_tbl_t *cmd_array[cmd_items];
246 /* 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++;
252 /* Sort command list (trivial bubble sort) */
253 for (i = cmd_items - 1; i > 0; --i) {
255 for (j = 0; j < i; ++j) {
256 if (strcmp (cmd_array[j]->name,
257 cmd_array[j + 1]->name) > 0) {
260 cmd_array[j] = cmd_array[j + 1];
261 cmd_array[j + 1] = tmp;
269 /* print short help (usage) */
270 for (i = 0; i < cmd_items; i++) {
271 const char *usage = cmd_array[i]->usage;
273 /* allow user abort */
283 * command help (long version)
285 for (i = 1; i < argc; ++i) {
286 if ((cmdtp = find_cmd (argv[i])) != NULL) {
288 /* found - print (long) help info */
294 puts ("- No help available.\n");
298 #else /* no long help available */
301 #endif /* CFG_LONGHELP */
303 printf ("Unknown command '%s' - try 'help'"
304 " without arguments for list of all"
305 " known commands\n\n", argv[i]
315 help, CFG_MAXARGS, 1, do_help,
316 "help - print online help\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"
325 /* This do not ust the U_BOOT_CMD macro as ? can't be used in symbol names */
327 cmd_tbl_t __u_boot_cmd_question_mark Struct_Section = {
328 "?", CFG_MAXARGS, 1, do_help,
329 "? - alias for 'help'\n",
333 cmd_tbl_t __u_boot_cmd_question_mark Struct_Section = {
334 "?", CFG_MAXARGS, 1, do_help,
335 "? - alias for 'help'\n"
337 #endif /* CFG_LONGHELP */
339 /***************************************************************************
340 * find command table entry for a command
342 cmd_tbl_t *find_cmd (const char *cmd)
345 cmd_tbl_t *cmdtp_temp = &__u_boot_cmd_start; /*Init value */
351 * Some commands allow length modifiers (like "cp.b");
352 * compare command name only until first dot.
354 len = ((p = strchr(cmd, '.')) == NULL) ? strlen (cmd) : (p - cmd);
356 for (cmdtp = &__u_boot_cmd_start;
357 cmdtp != &__u_boot_cmd_end;
359 if (strncmp (cmd, cmdtp->name, len) == 0) {
360 if (len == strlen (cmdtp->name))
361 return cmdtp; /* full match */
363 cmdtp_temp = cmdtp; /* abbreviated command ? */
367 if (n_found == 1) { /* exactly one match */
371 return NULL; /* not found or ambiguous command */
374 #ifdef CONFIG_AUTO_COMPLETE
376 int var_complete(int argc, char *argv[], char last_char, int maxv, char *cmdv[])
378 static char tmp_buf[512];
381 space = last_char == '\0' || last_char == ' ' || last_char == '\t';
383 if (space && argc == 1)
384 return env_complete("", maxv, cmdv, sizeof(tmp_buf), tmp_buf);
386 if (!space && argc == 2)
387 return env_complete(argv[1], maxv, cmdv, sizeof(tmp_buf), tmp_buf);
392 static void install_auto_complete_handler(const char *cmd,
393 int (*complete)(int argc, char *argv[], char last_char, int maxv, char *cmdv[]))
397 cmdtp = find_cmd(cmd);
401 cmdtp->complete = complete;
404 void install_auto_complete(void)
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);
413 /*************************************************************************************/
415 static int complete_cmdv(int argc, char *argv[], char last_char, int maxv, char *cmdv[])
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++] = "...";
436 cmdv[n_found++] = cmdtp->name;
438 cmdv[n_found] = NULL;
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) {
449 return (*cmdtp->complete)(argc, argv, last_char, maxv, cmdv);
454 * Some commands allow length modifiers (like "cp.b");
455 * compare command name only until first dot.
457 p = strchr(cmd, '.');
463 /* return the partial matches */
464 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
466 clen = strlen(cmdtp->name);
470 if (memcmp(cmd, cmdtp->name, len) != 0)
474 if (n_found >= maxv - 2) {
475 cmdv[n_found++] = "...";
479 cmdv[n_found++] = cmdtp->name;
482 cmdv[n_found] = NULL;
486 static int make_argv(char *s, int argvsz, char *argv[])
490 /* split into argv */
491 while (argc < argvsz - 1) {
493 /* skip any white space */
494 while ((*s == ' ') || (*s == '\t'))
497 if (*s == '\0') /* end of s, no more args */
500 argv[argc++] = s; /* begin of argument string */
502 /* find end of string */
503 while (*s && (*s != ' ') && (*s != '\t'))
506 if (*s == '\0') /* end of s, no more args */
509 *s++ = '\0'; /* terminate current arg */
516 static void print_argv(const char *banner, const char *leader, const char *sep, int linemax, char *argv[])
518 int ll = leader != NULL ? strlen(leader) : 0;
519 int sl = sep != NULL ? strlen(sep) : 0;
527 i = linemax; /* force leader and newline */
528 while (*argv != NULL) {
529 len = strlen(*argv) + sl;
530 if (i + len >= linemax) {
543 static int find_common_prefix(char *argv[])
546 char *anchor, *s, *t;
553 len = strlen(anchor);
554 while ((t = *argv++) != NULL) {
556 for (i = 0; i < len; i++, t++, s++) {
565 static char tmp_buf[CFG_CBSIZE]; /* copy of console I/O buffer */
567 int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp)
569 int n = *np, col = *colp;
570 char *argv[CFG_MAXARGS + 1]; /* NULL terminated */
574 int i, j, k, len, seplen, argc;
578 if (strcmp(prompt, CFG_PROMPT) != 0)
579 return 0; /* not in normal console */
583 last_char = buf[cnt - 1];
587 /* copy to secondary buffer which will be affected */
588 strcpy(tmp_buf, buf);
590 /* separate into argv */
591 argc = make_argv(tmp_buf, sizeof(argv)/sizeof(argv[0]), argv);
593 /* do the completion and return the possible completions */
594 i = complete_cmdv(argc, argv, last_char, sizeof(cmdv)/sizeof(cmdv[0]), cmdv);
596 /* no match; bell and out */
598 if (argc > 1) /* allow tab for non command */
608 if (i == 1) { /* one match; perfect */
609 k = strlen(argv[argc - 1]);
614 } else if (i > 1 && (j = find_common_prefix(cmdv)) != 0) { /* more */
615 k = strlen(argv[argc - 1]);
625 /* make sure it fits */
626 if (n + k >= CFG_CBSIZE - 2) {
632 for (i = 0; i < len; i++)
635 for (i = 0; i < seplen; i++)
646 print_argv(NULL, " ", " ", 78, cmdv);