projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 690a1d69 RK |
1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* | |
| 3 | * Copyright 2022 | |
| 4 | * Roger Knecht <[email protected]> | |
| 5 | */ | |
| 6 | ||
| 7 | #include <common.h> | |
| 8 | #include <command.h> | |
| 9 | #include <fs.h> | |
| 10 | #include <malloc.h> | |
| 11 | #include <mapmem.h> | |
| 12 | ||
| 13 | static int do_cat(struct cmd_tbl *cmdtp, int flag, int argc, | |
| 14 | char *const argv[]) | |
| 15 | { | |
| 16 | char *ifname; | |
| 17 | char *dev; | |
| 18 | char *file; | |
| 19 | char *buffer; | |
| 20 | phys_addr_t addr; | |
| 21 | loff_t file_size; | |
| 22 | ||
| 23 | if (argc < 4) | |
| 24 | return CMD_RET_USAGE; | |
| 25 | ||
| 26 | ifname = argv[1]; | |
| 27 | dev = argv[2]; | |
| 28 | file = argv[3]; | |
| 29 | ||
| 30 | // check file exists | |
| 31 | if (fs_set_blk_dev(ifname, dev, FS_TYPE_ANY)) | |
| 32 | return CMD_RET_FAILURE; | |
| 33 | ||
| 34 | if (!fs_exists(file)) { | |
| 35 | log_err("File does not exist: ifname=%s dev=%s file=%s\n", ifname, dev, file); | |
| 36 | return CMD_RET_FAILURE; | |
| 37 | } | |
| 38 | ||
| 39 | // get file size | |
| 40 | if (fs_set_blk_dev(ifname, dev, FS_TYPE_ANY)) | |
| 41 | return CMD_RET_FAILURE; | |
| 42 | ||
| 43 | if (fs_size(file, &file_size)) { | |
| 44 | log_err("Cannot read file size: ifname=%s dev=%s file=%s\n", ifname, dev, file); | |
| 45 | return CMD_RET_FAILURE; | |
| 46 | } | |
| 47 | ||
| 48 | // allocate memory for file content | |
| 49 | buffer = calloc(sizeof(char), file_size + 1); | |
| 50 | if (!buffer) { | |
| 51 | log_err("Out of memory\n"); | |
| 52 | return CMD_RET_FAILURE; | |
| 53 | } | |
| 54 | ||
| 55 | // map pointer to system memory | |
| 56 | addr = map_to_sysmem(buffer); | |
| 57 | ||
| 58 | // read file to memory | |
| 59 | if (fs_set_blk_dev(ifname, dev, FS_TYPE_ANY)) | |
| 60 | return CMD_RET_FAILURE; | |
| 61 | ||
| 62 | if (fs_read(file, addr, 0, 0, &file_size)) { | |
| 63 | log_err("Cannot read file: ifname=%s dev=%s file=%s\n", ifname, dev, file); | |
| 64 | return CMD_RET_FAILURE; | |
| 65 | } | |
| 66 | ||
| 67 | // print file content | |
| 68 | buffer[file_size] = '\0'; | |
| 69 | puts(buffer); | |
| 70 | ||
| 71 | free(buffer); | |
| 72 | ||
| 73 | return 0; | |
| 74 | } | |
| 75 | ||
| 76 | #ifdef CONFIG_SYS_LONGHELP | |
| 77 | static char cat_help_text[] = | |
| 78 | "<interface> <dev[:part]> <file>\n" | |
| 79 | " - Print file from 'dev' on 'interface' to standard output\n"; | |
| 80 | #endif | |
| 81 | ||
| 82 | U_BOOT_CMD(cat, 4, 1, do_cat, | |
| 83 | "Print file to standard output", | |
| 84 | cat_help_text | |
| 85 | ); |