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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2022
* Roger Knecht <rknecht@pm.de>
*/
#include <common.h>
#include <command.h>
#include <fs.h>
#include <malloc.h>
#include <mapmem.h>
static int do_cat(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
char *ifname;
char *dev;
char *file;
char *buffer;
ulong file_size;
int ret;
if (argc < 4)
return CMD_RET_USAGE;
ifname = argv[1];
dev = argv[2];
file = argv[3];
ret = fs_load_alloc(ifname, dev, file, 0, 0, (void **)&buffer,
&file_size);
// check file exists
switch (ret) {
case 0:
break;
case -ENOMEDIUM:
return CMD_RET_FAILURE;
case -ENOENT:
log_err("File does not exist: ifname=%s dev=%s file=%s\n", ifname, dev, file);
return CMD_RET_FAILURE;
case -E2BIG:
log_err("File is too large: ifname=%s dev=%s file=%s\n", ifname, dev, file);
return CMD_RET_FAILURE;
case -ENOMEM:
log_err("Not enough memory: ifname=%s dev=%s file=%s\n", ifname, dev, file);
return CMD_RET_FAILURE;
default:
case -EIO:
log_err("File-read failed: ifname=%s dev=%s file=%s\n", ifname, dev, file);
return CMD_RET_FAILURE;
}
// print file content
buffer[file_size] = '\0';
puts(buffer);
free(buffer);
return 0;
}
U_BOOT_LONGHELP(cat,
"<interface> <dev[:part]> <file>\n"
" - Print file from 'dev' on 'interface' to standard output\n");
U_BOOT_CMD(cat, 4, 1, do_cat,
"Print file to standard output",
cat_help_text
);
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