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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;
- }
- #ifdef CONFIG_SYS_LONGHELP
- static char cat_help_text[] =
- "<interface> <dev[:part]> <file>\n"
- " - Print file from 'dev' on 'interface' to standard output\n";
- #endif
- U_BOOT_CMD(cat, 4, 1, do_cat,
- "Print file to standard output",
- cat_help_text
- );
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