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e6a2f4cc5a
The config item is FEATURE_USE_BSS_TAIL. When it is off (default): function old new delta read_config 210 228 +18 doCommands 2279 2294 +15 ipneigh_list_or_flush 763 772 +9 ipaddr_list_or_flush 1256 1261 +5 display_process_list 1301 1306 +5 conspy_main 1378 1383 +5 do_lzo_compress 352 355 +3 do_lzo_decompress 565 567 +2 push 46 44 -2 inetd_main 2136 2134 -2 uevent_main 421 418 -3 addLines 97 92 -5 bb_common_bufsiz1 8193 1024 -7169 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 8/5 up/down: 62/-7181) Total: -7119 bytes text data bss dec hex filename 829850 4086 9080 843016 cdd08 busybox_old 829901 4086 1904 835891 cc133 busybox_unstripped FEATURE_USE_BSS_TAIL=y: read_config 210 228 +18 doCommands 2279 2294 +15 ipneigh_list_or_flush 763 772 +9 ipaddr_list_or_flush 1256 1261 +5 display_process_list 1301 1306 +5 conspy_main 1378 1383 +5 do_lzo_compress 352 355 +3 do_lzo_decompress 565 567 +2 inetd_main 2136 2134 -2 bb_common_bufsiz1 8193 - -8193 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 8/1 up/down: 62/-8195) Total: -8133 bytes text data bss dec hex filename 829850 4086 9080 843016 cdd08 busybox_old 829911 4086 880 834877 cbd3d busybox_unstripped FIXME: setup_common_bufsiz() calls are missing. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
93 lines
2.2 KiB
C
93 lines
2.2 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Mini dumpkmap implementation for busybox
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*
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* Copyright (C) Arne Bernin <arne@matrix.loopback.org>
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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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*/
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/* no options, no getopt */
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//usage:#define dumpkmap_trivial_usage
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//usage: "> keymap"
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//usage:#define dumpkmap_full_usage "\n\n"
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//usage: "Print a binary keyboard translation table to stdout"
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//usage:
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//usage:#define dumpkmap_example_usage
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//usage: "$ dumpkmap > keymap\n"
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#include "libbb.h"
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#include "common_bufsiz.h"
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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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#define KDGKBENT 0x4B46 /* gets one entry in translation table */
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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 dumpkmap_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int dumpkmap_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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#define flags bb_common_bufsiz1
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/* When user accidentally runs "dumpkmap FILE"
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* instead of "dumpkmap >FILE", we'd dump binary stuff to tty.
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* Let's prevent it:
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*/
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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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#if 0
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write(STDOUT_FILENO, "bkeymap", 7);
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/* Here we want to set everything to 0 except for indexes:
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* [0-2] [4-6] [8-10] [12]
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*/
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/*memset(flags, 0x00, MAX_NR_KEYMAPS); - already is */
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memset(flags, 0x01, 13);
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flags[3] = flags[7] = flags[11] = 0;
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/* dump flags */
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write(STDOUT_FILENO, flags, MAX_NR_KEYMAPS);
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#define flags7 flags
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#else
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/* Same effect */
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/* 0 1 2 3 4 5 6 7 8 9 a b c=12 */
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memcpy(flags, "bkeymap\1\1\1\0\1\1\1\0\1\1\1\0\1",
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/* Can use sizeof, or sizeof-1. sizeof is even, using that */
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/****/ sizeof("bkeymap\1\1\1\0\1\1\1\0\1\1\1\0\1")
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);
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write(STDOUT_FILENO, flags, 7 + MAX_NR_KEYMAPS);
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#define flags7 (flags + 7)
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#endif
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for (i = 0; i < 13; i++) {
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if (flags7[i]) {
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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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if (!ioctl_or_perror(fd, KDGKBENT, &ke,
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"ioctl(KDGKBENT{%d,%d}) failed",
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j, i)
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) {
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write(STDOUT_FILENO, &ke.kb_value, 2);
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}
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}
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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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}
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return EXIT_SUCCESS;
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}
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