655 lines
14 KiB
C
655 lines
14 KiB
C
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/*
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* (C) Copyright 2000-2003
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* Command Processor Table
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*/
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#include <common.h>
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#include <command.h>
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int
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do_version (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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extern char version_string[];
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printf ("\n%s\n", version_string);
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return 0;
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}
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U_BOOT_CMD(
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version, 1, 1, do_version,
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"version - print monitor version\n",
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NULL
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);
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int
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do_echo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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int i, putnl = 1;
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for (i = 1; i < argc; i++) {
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char *p = argv[i], c;
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if (i > 1)
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putc(' ');
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while ((c = *p++) != '\0') {
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if (c == '\\' && *p == 'c') {
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putnl = 0;
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p++;
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} else {
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putc(c);
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}
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}
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}
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if (putnl)
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putc('\n');
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return 0;
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}
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U_BOOT_CMD(
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echo, CFG_MAXARGS, 1, do_echo,
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"echo - echo args to console\n",
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"[args..]\n"
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" - echo args to console; \\c suppresses newline\n"
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);
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#ifdef CFG_HUSH_PARSER
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int
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do_test (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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char **ap;
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int left, adv, expr, last_expr, neg, last_cmp;
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/* args? */
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if (argc < 3)
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return 1;
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#if 0
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{
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printf("test:");
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left = 1;
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while (argv[left])
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printf(" %s", argv[left++]);
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}
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#endif
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last_expr = 0;
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left = argc - 1; ap = argv + 1;
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if (left > 0 && strcmp(ap[0], "!") == 0) {
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neg = 1;
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ap++;
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left--;
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} else
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neg = 0;
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expr = -1;
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last_cmp = -1;
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last_expr = -1;
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while (left > 0) {
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if (strcmp(ap[0], "-o") == 0 || strcmp(ap[0], "-a") == 0)
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adv = 1;
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else if (strcmp(ap[0], "-z") == 0 || strcmp(ap[0], "-n") == 0)
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adv = 2;
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else
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adv = 3;
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if (left < adv) {
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expr = 1;
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break;
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}
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if (adv == 1) {
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if (strcmp(ap[0], "-o") == 0) {
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last_expr = expr;
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last_cmp = 0;
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} else if (strcmp(ap[0], "-a") == 0) {
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last_expr = expr;
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last_cmp = 1;
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} else {
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expr = 1;
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break;
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}
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}
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if (adv == 2) {
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if (strcmp(ap[0], "-z") == 0)
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expr = strlen(ap[1]) == 0 ? 1 : 0;
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else if (strcmp(ap[0], "-n") == 0)
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expr = strlen(ap[1]) == 0 ? 0 : 1;
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else {
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expr = 1;
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break;
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}
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if (last_cmp == 0)
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expr = last_expr || expr;
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else if (last_cmp == 1)
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expr = last_expr && expr;
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last_cmp = -1;
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}
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if (adv == 3) {
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if (strcmp(ap[1], "=") == 0)
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expr = strcmp(ap[0], ap[2]) == 0;
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else if (strcmp(ap[1], "!=") == 0)
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expr = strcmp(ap[0], ap[2]) != 0;
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else if (strcmp(ap[1], ">") == 0)
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expr = strcmp(ap[0], ap[2]) > 0;
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else if (strcmp(ap[1], "<") == 0)
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expr = strcmp(ap[0], ap[2]) < 0;
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else if (strcmp(ap[1], "-eq") == 0)
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expr = simple_strtol(ap[0], NULL, 10) == simple_strtol(ap[2], NULL, 10);
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else if (strcmp(ap[1], "-ne") == 0)
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expr = simple_strtol(ap[0], NULL, 10) != simple_strtol(ap[2], NULL, 10);
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else if (strcmp(ap[1], "-lt") == 0)
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expr = simple_strtol(ap[0], NULL, 10) < simple_strtol(ap[2], NULL, 10);
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else if (strcmp(ap[1], "-le") == 0)
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expr = simple_strtol(ap[0], NULL, 10) <= simple_strtol(ap[2], NULL, 10);
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else if (strcmp(ap[1], "-gt") == 0)
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expr = simple_strtol(ap[0], NULL, 10) > simple_strtol(ap[2], NULL, 10);
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else if (strcmp(ap[1], "-ge") == 0)
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expr = simple_strtol(ap[0], NULL, 10) >= simple_strtol(ap[2], NULL, 10);
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else {
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expr = 1;
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break;
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}
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if (last_cmp == 0)
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expr = last_expr || expr;
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else if (last_cmp == 1)
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expr = last_expr && expr;
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last_cmp = -1;
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}
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ap += adv; left -= adv;
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}
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if (neg)
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expr = !expr;
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expr = !expr;
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#if 0
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printf(": returns %d\n", expr);
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#endif
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return expr;
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}
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U_BOOT_CMD(
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test, CFG_MAXARGS, 1, do_test,
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"test - minimal test like /bin/sh\n",
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"[args..]\n"
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" - test functionality\n"
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);
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int
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do_exit (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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int r;
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r = 0;
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if (argc > 1)
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r = simple_strtoul(argv[1], NULL, 10);
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return -r - 2;
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}
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U_BOOT_CMD(
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exit, 2, 1, do_exit,
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"exit - exit script\n",
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" - exit functionality\n"
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);
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#endif
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/*
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* Use puts() instead of printf() to avoid printf buffer overflow
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* for long help messages
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*/
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int do_help (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
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{
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int i;
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int rcode = 0;
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if (argc == 1) { /*show list of commands */
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int cmd_items = &__u_boot_cmd_end -
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&__u_boot_cmd_start; /* pointer arith! */
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cmd_tbl_t *cmd_array[cmd_items];
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int i, j, swaps;
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/* Make array of commands from .uboot_cmd section */
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cmdtp = &__u_boot_cmd_start;
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for (i = 0; i < cmd_items; i++) {
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cmd_array[i] = cmdtp++;
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}
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/* Sort command list (trivial bubble sort) */
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for (i = cmd_items - 1; i > 0; --i) {
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swaps = 0;
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for (j = 0; j < i; ++j) {
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if (strcmp (cmd_array[j]->name,
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cmd_array[j + 1]->name) > 0) {
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cmd_tbl_t *tmp;
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tmp = cmd_array[j];
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cmd_array[j] = cmd_array[j + 1];
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cmd_array[j + 1] = tmp;
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++swaps;
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}
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}
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if (!swaps)
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break;
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}
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/* print short help (usage) */
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for (i = 0; i < cmd_items; i++) {
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const char *usage = cmd_array[i]->usage;
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/* allow user abort */
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if (ctrlc ())
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return 1;
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if (usage == NULL)
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continue;
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puts (usage);
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}
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return 0;
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}
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/*
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* command help (long version)
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*/
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for (i = 1; i < argc; ++i) {
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if ((cmdtp = find_cmd (argv[i])) != NULL) {
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#ifdef CFG_LONGHELP
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/* found - print (long) help info */
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puts (cmdtp->name);
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putc (' ');
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if (cmdtp->help) {
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puts (cmdtp->help);
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} else {
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puts ("- No help available.\n");
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rcode = 1;
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}
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putc ('\n');
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#else /* no long help available */
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if (cmdtp->usage)
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puts (cmdtp->usage);
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#endif /* CFG_LONGHELP */
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} else {
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printf ("Unknown command '%s' - try 'help'"
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" without arguments for list of all"
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" known commands\n\n", argv[i]
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);
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rcode = 1;
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}
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}
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return rcode;
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}
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U_BOOT_CMD(
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help, CFG_MAXARGS, 1, do_help,
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"help - print online help\n",
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"[command ...]\n"
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" - show help information (for 'command')\n"
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"'help' prints online help for the monitor commands.\n\n"
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"Without arguments, it prints a short usage message for all commands.\n\n"
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"To get detailed help information for specific commands you can type\n"
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"'help' with one or more command names as arguments.\n"
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);
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/* This do not ust the U_BOOT_CMD macro as ? can't be used in symbol names */
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#ifdef CFG_LONGHELP
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cmd_tbl_t __u_boot_cmd_question_mark Struct_Section = {
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"?", CFG_MAXARGS, 1, do_help,
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"? - alias for 'help'\n",
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NULL
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};
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#else
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cmd_tbl_t __u_boot_cmd_question_mark Struct_Section = {
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"?", CFG_MAXARGS, 1, do_help,
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"? - alias for 'help'\n"
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};
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#endif /* CFG_LONGHELP */
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/***************************************************************************
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* find command table entry for a command
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*/
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cmd_tbl_t *find_cmd (const char *cmd)
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{
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cmd_tbl_t *cmdtp;
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cmd_tbl_t *cmdtp_temp = &__u_boot_cmd_start; /*Init value */
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const char *p;
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int len;
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int n_found = 0;
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/*
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* Some commands allow length modifiers (like "cp.b");
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* compare command name only until first dot.
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*/
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len = ((p = strchr(cmd, '.')) == NULL) ? strlen (cmd) : (p - cmd);
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for (cmdtp = &__u_boot_cmd_start;
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cmdtp != &__u_boot_cmd_end;
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cmdtp++) {
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if (strncmp (cmd, cmdtp->name, len) == 0) {
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if (len == strlen (cmdtp->name))
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return cmdtp; /* full match */
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cmdtp_temp = cmdtp; /* abbreviated command ? */
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n_found++;
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}
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}
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if (n_found == 1) { /* exactly one match */
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return cmdtp_temp;
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}
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return NULL; /* not found or ambiguous command */
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}
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#ifdef CONFIG_AUTO_COMPLETE
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int var_complete(int argc, char *argv[], char last_char, int maxv, char *cmdv[])
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{
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static char tmp_buf[512];
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int space;
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space = last_char == '\0' || last_char == ' ' || last_char == '\t';
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if (space && argc == 1)
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return env_complete("", maxv, cmdv, sizeof(tmp_buf), tmp_buf);
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if (!space && argc == 2)
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return env_complete(argv[1], maxv, cmdv, sizeof(tmp_buf), tmp_buf);
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return 0;
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}
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|
static void install_auto_complete_handler(const char *cmd,
|
||
|
|
int (*complete)(int argc, char *argv[], char last_char, int maxv, char *cmdv[]))
|
||
|
|
{
|
||
|
|
cmd_tbl_t *cmdtp;
|
||
|
|
|
||
|
|
cmdtp = find_cmd(cmd);
|
||
|
|
if (cmdtp == NULL)
|
||
|
|
return;
|
||
|
|
|
||
|
|
cmdtp->complete = complete;
|
||
|
|
}
|
||
|
|
|
||
|
|
void install_auto_complete(void)
|
||
|
|
{
|
||
|
|
install_auto_complete_handler("printenv", var_complete);
|
||
|
|
install_auto_complete_handler("setenv", var_complete);
|
||
|
|
#if (CONFIG_COMMANDS & CFG_CMD_RUN)
|
||
|
|
install_auto_complete_handler("run", var_complete);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
/*************************************************************************************/
|
||
|
|
|
||
|
|
static int complete_cmdv(int argc, char *argv[], char last_char, int maxv, char *cmdv[])
|
||
|
|
{
|
||
|
|
cmd_tbl_t *cmdtp;
|
||
|
|
const char *p;
|
||
|
|
int len, clen;
|
||
|
|
int n_found = 0;
|
||
|
|
const char *cmd;
|
||
|
|
|
||
|
|
/* sanity? */
|
||
|
|
if (maxv < 2)
|
||
|
|
return -2;
|
||
|
|
|
||
|
|
cmdv[0] = NULL;
|
||
|
|
|
||
|
|
if (argc == 0) {
|
||
|
|
/* output full list of commands */
|
||
|
|
for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
|
||
|
|
if (n_found >= maxv - 2) {
|
||
|
|
cmdv[n_found++] = "...";
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
cmdv[n_found++] = cmdtp->name;
|
||
|
|
}
|
||
|
|
cmdv[n_found] = NULL;
|
||
|
|
return n_found;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* more than one arg or one but the start of the next */
|
||
|
|
if (argc > 1 || (last_char == '\0' || last_char == ' ' || last_char == '\t')) {
|
||
|
|
cmdtp = find_cmd(argv[0]);
|
||
|
|
if (cmdtp == NULL || cmdtp->complete == NULL) {
|
||
|
|
cmdv[0] = NULL;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
return (*cmdtp->complete)(argc, argv, last_char, maxv, cmdv);
|
||
|
|
}
|
||
|
|
|
||
|
|
cmd = argv[0];
|
||
|
|
/*
|
||
|
|
* Some commands allow length modifiers (like "cp.b");
|
||
|
|
* compare command name only until first dot.
|
||
|
|
*/
|
||
|
|
p = strchr(cmd, '.');
|
||
|
|
if (p == NULL)
|
||
|
|
len = strlen(cmd);
|
||
|
|
else
|
||
|
|
len = p - cmd;
|
||
|
|
|
||
|
|
/* return the partial matches */
|
||
|
|
for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
|
||
|
|
|
||
|
|
clen = strlen(cmdtp->name);
|
||
|
|
if (clen < len)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
if (memcmp(cmd, cmdtp->name, len) != 0)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
/* too many! */
|
||
|
|
if (n_found >= maxv - 2) {
|
||
|
|
cmdv[n_found++] = "...";
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
cmdv[n_found++] = cmdtp->name;
|
||
|
|
}
|
||
|
|
|
||
|
|
cmdv[n_found] = NULL;
|
||
|
|
return n_found;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int make_argv(char *s, int argvsz, char *argv[])
|
||
|
|
{
|
||
|
|
int argc = 0;
|
||
|
|
|
||
|
|
/* split into argv */
|
||
|
|
while (argc < argvsz - 1) {
|
||
|
|
|
||
|
|
/* skip any white space */
|
||
|
|
while ((*s == ' ') || (*s == '\t'))
|
||
|
|
++s;
|
||
|
|
|
||
|
|
if (*s == '\0') /* end of s, no more args */
|
||
|
|
break;
|
||
|
|
|
||
|
|
argv[argc++] = s; /* begin of argument string */
|
||
|
|
|
||
|
|
/* find end of string */
|
||
|
|
while (*s && (*s != ' ') && (*s != '\t'))
|
||
|
|
++s;
|
||
|
|
|
||
|
|
if (*s == '\0') /* end of s, no more args */
|
||
|
|
break;
|
||
|
|
|
||
|
|
*s++ = '\0'; /* terminate current arg */
|
||
|
|
}
|
||
|
|
argv[argc] = NULL;
|
||
|
|
|
||
|
|
return argc;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void print_argv(const char *banner, const char *leader, const char *sep, int linemax, char *argv[])
|
||
|
|
{
|
||
|
|
int ll = leader != NULL ? strlen(leader) : 0;
|
||
|
|
int sl = sep != NULL ? strlen(sep) : 0;
|
||
|
|
int len, i;
|
||
|
|
|
||
|
|
if (banner) {
|
||
|
|
puts("\n");
|
||
|
|
puts(banner);
|
||
|
|
}
|
||
|
|
|
||
|
|
i = linemax; /* force leader and newline */
|
||
|
|
while (*argv != NULL) {
|
||
|
|
len = strlen(*argv) + sl;
|
||
|
|
if (i + len >= linemax) {
|
||
|
|
puts("\n");
|
||
|
|
if (leader)
|
||
|
|
puts(leader);
|
||
|
|
i = ll - sl;
|
||
|
|
} else if (sep)
|
||
|
|
puts(sep);
|
||
|
|
puts(*argv++);
|
||
|
|
i += len;
|
||
|
|
}
|
||
|
|
printf("\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
static int find_common_prefix(char *argv[])
|
||
|
|
{
|
||
|
|
int i, len;
|
||
|
|
char *anchor, *s, *t;
|
||
|
|
|
||
|
|
if (*argv == NULL)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
/* begin with max */
|
||
|
|
anchor = *argv++;
|
||
|
|
len = strlen(anchor);
|
||
|
|
while ((t = *argv++) != NULL) {
|
||
|
|
s = anchor;
|
||
|
|
for (i = 0; i < len; i++, t++, s++) {
|
||
|
|
if (*t != *s)
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
len = s - anchor;
|
||
|
|
}
|
||
|
|
return len;
|
||
|
|
}
|
||
|
|
|
||
|
|
static char tmp_buf[CFG_CBSIZE]; /* copy of console I/O buffer */
|
||
|
|
|
||
|
|
int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp)
|
||
|
|
{
|
||
|
|
int n = *np, col = *colp;
|
||
|
|
char *argv[CFG_MAXARGS + 1]; /* NULL terminated */
|
||
|
|
char *cmdv[20];
|
||
|
|
char *s, *t;
|
||
|
|
const char *sep;
|
||
|
|
int i, j, k, len, seplen, argc;
|
||
|
|
int cnt;
|
||
|
|
char last_char;
|
||
|
|
|
||
|
|
if (strcmp(prompt, CFG_PROMPT) != 0)
|
||
|
|
return 0; /* not in normal console */
|
||
|
|
|
||
|
|
cnt = strlen(buf);
|
||
|
|
if (cnt >= 1)
|
||
|
|
last_char = buf[cnt - 1];
|
||
|
|
else
|
||
|
|
last_char = '\0';
|
||
|
|
|
||
|
|
/* copy to secondary buffer which will be affected */
|
||
|
|
strcpy(tmp_buf, buf);
|
||
|
|
|
||
|
|
/* separate into argv */
|
||
|
|
argc = make_argv(tmp_buf, sizeof(argv)/sizeof(argv[0]), argv);
|
||
|
|
|
||
|
|
/* do the completion and return the possible completions */
|
||
|
|
i = complete_cmdv(argc, argv, last_char, sizeof(cmdv)/sizeof(cmdv[0]), cmdv);
|
||
|
|
|
||
|
|
/* no match; bell and out */
|
||
|
|
if (i == 0) {
|
||
|
|
if (argc > 1) /* allow tab for non command */
|
||
|
|
return 0;
|
||
|
|
putc('\a');
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
s = NULL;
|
||
|
|
len = 0;
|
||
|
|
sep = NULL;
|
||
|
|
seplen = 0;
|
||
|
|
if (i == 1) { /* one match; perfect */
|
||
|
|
k = strlen(argv[argc - 1]);
|
||
|
|
s = cmdv[0] + k;
|
||
|
|
len = strlen(s);
|
||
|
|
sep = " ";
|
||
|
|
seplen = 1;
|
||
|
|
} else if (i > 1 && (j = find_common_prefix(cmdv)) != 0) { /* more */
|
||
|
|
k = strlen(argv[argc - 1]);
|
||
|
|
j -= k;
|
||
|
|
if (j > 0) {
|
||
|
|
s = cmdv[0] + k;
|
||
|
|
len = j;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (s != NULL) {
|
||
|
|
k = len + seplen;
|
||
|
|
/* make sure it fits */
|
||
|
|
if (n + k >= CFG_CBSIZE - 2) {
|
||
|
|
putc('\a');
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
t = buf + cnt;
|
||
|
|
for (i = 0; i < len; i++)
|
||
|
|
*t++ = *s++;
|
||
|
|
if (sep != NULL)
|
||
|
|
for (i = 0; i < seplen; i++)
|
||
|
|
*t++ = sep[i];
|
||
|
|
*t = '\0';
|
||
|
|
n += k;
|
||
|
|
col += k;
|
||
|
|
puts(t - k);
|
||
|
|
if (sep == NULL)
|
||
|
|
putc('\a');
|
||
|
|
*np = n;
|
||
|
|
*colp = col;
|
||
|
|
} else {
|
||
|
|
print_argv(NULL, " ", " ", 78, cmdv);
|
||
|
|
|
||
|
|
puts(prompt);
|
||
|
|
puts(buf);
|
||
|
|
}
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|