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8dff01d06a
function old new delta is_prefixed_with - 18 +18 complete_username 78 77 -1 man_main 737 735 -2 fsck_device 429 427 -2 unpack_ar_archive 80 76 -4 strip_unsafe_prefix 105 101 -4 singlemount 1054 1050 -4 rtc_adjtime_is_utc 90 86 -4 resolve_mount_spec 88 84 -4 parse_one_line 1029 1025 -4 parse_conf 1460 1456 -4 may_wakeup 83 79 -4 loadkmap_main 219 215 -4 get_irqs_from_stat 103 99 -4 get_header_cpio 913 909 -4 findfs_main 79 75 -4 fbsplash_main 1230 1226 -4 load_crontab 776 771 -5 expand_vars_to_list 1151 1146 -5 date_main 881 876 -5 skip_dev_pfx 30 24 -6 make_device 2199 2193 -6 complete_cmd_dir_file 773 767 -6 run_applet_and_exit 715 708 -7 uudecode_main 321 313 -8 pwdx_main 197 189 -8 execute 568 560 -8 i2cdetect_main 1186 1176 -10 procps_scan 1242 1230 -12 procps_read_smaps 1017 1005 -12 process_module 746 734 -12 patch_main 1903 1891 -12 nfsmount 3572 3560 -12 stack_machine 126 112 -14 process_timer_stats 449 435 -14 match_fstype 111 97 -14 do_ipaddr 1344 1330 -14 open_list_and_close 359 343 -16 get_header_tar 1795 1779 -16 prepend_new_eth_table 340 323 -17 fsck_main 1811 1794 -17 find_iface_state 56 38 -18 dnsd_main 1321 1303 -18 base_device 179 158 -21 find_keyword 104 82 -22 handle_incoming_and_exit 2785 2762 -23 parse_and_put_prompt 774 746 -28 modinfo 347 317 -30 find_action 204 171 -33 update_passwd 1470 1436 -34 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/49 up/down: 18/-540) Total: -522 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
93 lines
2.4 KiB
C
93 lines
2.4 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Mini loadkmap implementation for busybox
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*
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* Copyright (C) 1998 Enrique Zanardi <ezanardi@ull.es>
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*
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* Licensed under GPLv2 or later, see file LICENSE in this source tree.
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*/
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//usage:#define loadkmap_trivial_usage
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//usage: "< keymap"
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//usage:#define loadkmap_full_usage "\n\n"
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//usage: "Load a binary keyboard translation table from stdin"
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////usage: "\n"
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////usage: "\n -C TTY Affect TTY instead of /dev/tty"
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//usage:
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//usage:#define loadkmap_example_usage
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//usage: "$ loadkmap < /etc/i18n/lang-keymap\n"
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#include "libbb.h"
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#define BINARY_KEYMAP_MAGIC "bkeymap"
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/* From <linux/kd.h> */
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struct kbentry {
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unsigned char kb_table;
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unsigned char kb_index;
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unsigned short kb_value;
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};
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/* sets one entry in translation table */
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#define KDSKBENT 0x4B47
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/* From <linux/keyboard.h> */
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#define NR_KEYS 128
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#define MAX_NR_KEYMAPS 256
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int loadkmap_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int loadkmap_main(int argc UNUSED_PARAM, char **argv)
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{
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struct kbentry ke;
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int i, j, fd;
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uint16_t ibuff[NR_KEYS];
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/* const char *tty_name = CURRENT_TTY; */
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RESERVE_CONFIG_BUFFER(flags, MAX_NR_KEYMAPS);
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/* When user accidentally runs "loadkmap FILE"
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* instead of "loadkmap <FILE", we end up waiting for input from tty.
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* Let's prevent it: */
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if (argv[1])
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bb_show_usage();
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/* bb_warn_ignoring_args(argv[1]); */
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fd = get_console_fd_or_die();
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/* or maybe:
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opt = getopt32(argv, "C:", &tty_name);
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fd = xopen_nonblocking(tty_name);
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*/
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xread(STDIN_FILENO, flags, 7);
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if (!is_prefixed_with(flags, BINARY_KEYMAP_MAGIC))
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bb_error_msg_and_die("not a valid binary keymap");
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xread(STDIN_FILENO, flags, MAX_NR_KEYMAPS);
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for (i = 0; i < MAX_NR_KEYMAPS; i++) {
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if (flags[i] != 1)
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continue;
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xread(STDIN_FILENO, ibuff, NR_KEYS * sizeof(uint16_t));
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for (j = 0; j < NR_KEYS; j++) {
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ke.kb_index = j;
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ke.kb_table = i;
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ke.kb_value = ibuff[j];
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/*
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* Note: table[idx:0] can contain special value
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* K_ALLOCATED (marks allocated tables in kernel).
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* dumpkmap saves the value as-is; but attempts
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* to load it here fail, since it isn't a valid
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* key value: it is K(KT_SPEC,126) == 2<<8 + 126,
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* whereas last valid KT_SPEC is
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* K_BARENUMLOCK == K(KT_SPEC,19).
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* So far we just ignore these errors:
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*/
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ioctl(fd, KDSKBENT, &ke);
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}
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}
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if (ENABLE_FEATURE_CLEAN_UP) {
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close(fd);
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RELEASE_CONFIG_BUFFER(flags);
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}
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return EXIT_SUCCESS;
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}
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