1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright 2000-2009
3*4882a593Smuzhiyun * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include <common.h>
9*4882a593Smuzhiyun #include <command.h>
10*4882a593Smuzhiyun
do_echo(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])11*4882a593Smuzhiyun static int do_echo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
12*4882a593Smuzhiyun {
13*4882a593Smuzhiyun int i;
14*4882a593Smuzhiyun int putnl = 1;
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun for (i = 1; i < argc; i++) {
17*4882a593Smuzhiyun char *p = argv[i];
18*4882a593Smuzhiyun char *nls; /* new-line suppression */
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun if (i > 1)
21*4882a593Smuzhiyun putc(' ');
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun nls = strstr(p, "\\c");
24*4882a593Smuzhiyun if (nls) {
25*4882a593Smuzhiyun char *prenls = p;
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun putnl = 0;
28*4882a593Smuzhiyun /*
29*4882a593Smuzhiyun * be paranoid and guess that someone might
30*4882a593Smuzhiyun * say \c more than once
31*4882a593Smuzhiyun */
32*4882a593Smuzhiyun while (nls) {
33*4882a593Smuzhiyun *nls = '\0';
34*4882a593Smuzhiyun puts(prenls);
35*4882a593Smuzhiyun *nls = '\\';
36*4882a593Smuzhiyun prenls = nls + 2;
37*4882a593Smuzhiyun nls = strstr(prenls, "\\c");
38*4882a593Smuzhiyun }
39*4882a593Smuzhiyun puts(prenls);
40*4882a593Smuzhiyun } else {
41*4882a593Smuzhiyun puts(p);
42*4882a593Smuzhiyun }
43*4882a593Smuzhiyun }
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun if (putnl)
46*4882a593Smuzhiyun putc('\n');
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun return 0;
49*4882a593Smuzhiyun }
50*4882a593Smuzhiyun
51*4882a593Smuzhiyun U_BOOT_CMD(
52*4882a593Smuzhiyun echo, CONFIG_SYS_MAXARGS, 1, do_echo,
53*4882a593Smuzhiyun "echo args to console",
54*4882a593Smuzhiyun "[args..]\n"
55*4882a593Smuzhiyun " - echo args to console; \\c suppresses newline"
56*4882a593Smuzhiyun );
57