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cmd_echo.c 1.38 KiB
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  • /*
     * Copyright 2000-2009
     * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
     *
     * See file CREDITS for list of people who contributed to this
     * project.
     *
     * This program is free software; you can redistribute it and/or
     * modify it under the terms of the GNU General Public License as
     * published by the Free Software Foundation; either version 2 of
     * the License, or (at your option) any later version.
     *
     * This program is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     * GNU General Public License for more details.
     *
     * You should have received a copy of the GNU General Public License
     * along with this program; if not, write to the Free Software
     * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
     * MA 02111-1307 USA
     */
    
    #include <common.h>
    #include <command.h>
    
    int do_echo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
    {
    	int i;
    	int putnl = 1;
    
    	for (i = 1; i < argc; i++) {
    		char *p = argv[i], c;
    
    		if (i > 1)
    			putc(' ');
    		while ((c = *p++) != '\0') {
    			if (c == '\\' && *p == 'c') {
    				putnl = 0;
    				p++;
    			} else {
    				putc(c);
    			}
    		}
    	}
    
    	if (putnl)
    		putc('\n');
    
    	return 0;
    }
    
    U_BOOT_CMD(
    	echo,	CONFIG_SYS_MAXARGS,	1,	do_echo,
    	"echo args to console",
    	"[args..]\n"
    	"    - echo args to console; \\c suppresses newline"
    );