* 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
-int do_echo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_echo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int i;
int putnl = 1;
for (i = 1; i < argc; i++) {
- char *p = argv[i], c;
+ char *p = argv[i];
+ char *nls; /* new-line suppression */
if (i > 1)
putc(' ');
- while ((c = *p++) != '\0') {
- if (c == '\\' && *p == 'c') {
- putnl = 0;
- p++;
- } else {
- putc(c);
+
+ nls = strstr(p, "\\c");
+ if (nls) {
+ char *prenls = p;
+
+ putnl = 0;
+ /*
+ * be paranoid and guess that someone might
+ * say \c more than once
+ */
+ while (nls) {
+ *nls = '\0';
+ puts(prenls);
+ *nls = '\\';
+ prenls = nls + 2;
+ nls = strstr(prenls, "\\c");
}
+ puts(prenls);
+ } else {
+ puts(p);
}
}