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- // 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
- );
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