62 lines
984 B
C
62 lines
984 B
C
|
#include <common.h>
|
||
|
|
#include <command.h>
|
||
|
|
#include <getopt.h>
|
||
|
|
#include <fs.h>
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <errno.h>
|
||
|
|
|
||
|
|
static int do_echo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
int fd = stdout, opt, newline = 1;
|
||
|
|
char *file = NULL;
|
||
|
|
int oflags = O_WRONLY | O_CREAT;
|
||
|
|
getopt_reset();
|
||
|
|
|
||
|
|
while((opt = getopt(argc, argv, "a:o:n")) > 0) {
|
||
|
|
switch(opt) {
|
||
|
|
case 'n':
|
||
|
|
newline = 0;
|
||
|
|
break;
|
||
|
|
case 'a':
|
||
|
|
oflags |= O_APPEND;
|
||
|
|
file = optarg;
|
||
|
|
break;
|
||
|
|
case 'o':
|
||
|
|
oflags |= O_TRUNC;
|
||
|
|
file = optarg;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (file) {
|
||
|
|
fd = open(file, oflags);
|
||
|
|
if (fd < 0) {
|
||
|
|
perror("open");
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
for (i = optind; i < argc; i++) {
|
||
|
|
if (i > optind)
|
||
|
|
fputc(fd, ' ');
|
||
|
|
fputs(fd, argv[i]);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (newline)
|
||
|
|
fputc(fd, '\n');
|
||
|
|
|
||
|
|
if (file)
|
||
|
|
close(fd);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
U_BOOT_CMD(
|
||
|
|
echo, CONFIG_MAXARGS, 0, do_echo,
|
||
|
|
"echo - echo args to console\n",
|
||
|
|
"[args..]\n"
|
||
|
|
" - echo args to console; \\c suppresses newline\n"
|
||
|
|
);
|
||
|
|
|