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