[people/ms/u-boot.git] / cmd / echo.c

/*
 * Copyright 2000-2009
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <command.h>

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];
		char *nls; /* new-line suppression */

		if (i > 1)
			putc(' ');

		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);
		}
	}

	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"
);
Commit	Line	Data
6b8f5ad1 PT	1	/*
	2	* Copyright 2000-2009
	3	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	4	*
1a459660	5	* SPDX-License-Identifier: GPL-2.0+
6b8f5ad1 PT	6	*/
	7
	8	#include <common.h>
	9	#include <command.h>
	10
088f1b19	11	static int do_echo(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
6b8f5ad1 PT	12	{
	13	int i;
	14	int putnl = 1;
	15
	16	for (i = 1; i < argc; i++) {
bb64d1c9 JH	17	char *p = argv[i];
bb64d1c9 JH	18	char nls; / new-line suppression */
6b8f5ad1 PT	19
	20	if (i > 1)
	21	putc(' ');
bb64d1c9 JH	22
	23	nls = strstr(p, "\\c");
	24	if (nls) {
	25	char *prenls = p;
	26
	27	putnl = 0;
	28	/*
	29	* be paranoid and guess that someone might
	30	* say \c more than once
	31	*/
	32	while (nls) {
	33	*nls = '\0';
	34	puts(prenls);
	35	*nls = '\\';
	36	prenls = nls + 2;
	37	nls = strstr(prenls, "\\c");
6b8f5ad1	38	}
bb64d1c9 JH	39	puts(prenls);
	40	} else {
	41	puts(p);
6b8f5ad1 PT	42	}
	43	}
	44
	45	if (putnl)
	46	putc('\n');
	47
	48	return 0;
	49	}
	50
	51	U_BOOT_CMD(
	52	echo, CONFIG_SYS_MAXARGS, 1, do_echo,
	53	"echo args to console",
	54	"[args..]\n"
	55	" - echo args to console; \\c suppresses newline"
	56	);