mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-28 07:31:15 +00:00
23c0df6e7c
Add xxd command to print file content as hexdump to standard out Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Roger Knecht <rknecht@pm.me>
85 lines
1.8 KiB
C
85 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright 2022
|
|
* Roger Knecht <rknecht@pm.de>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <display_options.h>
|
|
#include <fs.h>
|
|
#include <malloc.h>
|
|
#include <mapmem.h>
|
|
|
|
static int do_xxd(struct cmd_tbl *cmdtp, int flag, int argc,
|
|
char *const argv[])
|
|
{
|
|
char *ifname;
|
|
char *dev;
|
|
char *file;
|
|
char *buffer;
|
|
phys_addr_t addr;
|
|
loff_t file_size;
|
|
|
|
if (argc < 4)
|
|
return CMD_RET_USAGE;
|
|
|
|
ifname = argv[1];
|
|
dev = argv[2];
|
|
file = argv[3];
|
|
|
|
// check file exists
|
|
if (fs_set_blk_dev(ifname, dev, FS_TYPE_ANY))
|
|
return CMD_RET_FAILURE;
|
|
|
|
if (!fs_exists(file)) {
|
|
log_err("File does not exist: ifname=%s dev=%s file=%s\n", ifname, dev, file);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
// get file size
|
|
if (fs_set_blk_dev(ifname, dev, FS_TYPE_ANY))
|
|
return CMD_RET_FAILURE;
|
|
|
|
if (fs_size(file, &file_size)) {
|
|
log_err("Cannot read file size: ifname=%s dev=%s file=%s\n", ifname, dev, file);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
// allocate memory for file content
|
|
buffer = calloc(sizeof(char), file_size);
|
|
if (!buffer) {
|
|
log_err("Out of memory\n");
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
// map pointer to system memory
|
|
addr = map_to_sysmem(buffer);
|
|
|
|
// read file to memory
|
|
if (fs_set_blk_dev(ifname, dev, FS_TYPE_ANY))
|
|
return CMD_RET_FAILURE;
|
|
|
|
if (fs_read(file, addr, 0, 0, &file_size)) {
|
|
log_err("Cannot read file: ifname=%s dev=%s file=%s\n", ifname, dev, file);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
// print file content
|
|
print_buffer(0, buffer, sizeof(char), file_size, 0);
|
|
|
|
free(buffer);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_SYS_LONGHELP
|
|
static char xxd_help_text[] =
|
|
"<interface> <dev[:part]> <file>\n"
|
|
" - Print file from 'dev' on 'interface' as hexdump to standard output\n";
|
|
#endif
|
|
|
|
U_BOOT_CMD(xxd, 4, 1, do_xxd,
|
|
"Print file as hexdump to standard output",
|
|
xxd_help_text
|
|
);
|