Trucs

#include <stdio.h>#include <stdlib.h>#include <signal.h>#include <getopt.h>#include <math.h>#include <string.h>#define DEF_XY_EXP 	1.6#define DEF_Z_EXP 	1.2#define DEF_Z_MULT 	0.02#define DEF_INDEV	"/dev/mouse"#define DEF_OUTDEV	"/dev/imouse"void usage();main(int argc, char *argv[]){    FILE *in, *out;     unsigned char mousedev_imps_seq[] = { 0xf3, 200, 0xf3, 100, 0xf3, 80 };    char *indev = DEF_INDEV;    char *outdev = DEF_OUTDEV;    int c;        while (1) {	static struct option long_options[] =	  {	      {"input",  required_argument, 0, 'i'},	      {"output",  required_argument, 0, 'o'},	      {"vx", required_argument, 0, 'x'},	      {"vz", required_argument, 0, 'z'},	      {"mz", required_argument, 0, 'm'},	      {"help", no_argument, 0, 'h'},	      {0, 0, 0, 0}	  };	int option_index = 0;		ch = getopt_long (argc, argv, "i:o:x:z:m:h", long_options, &option_index);		/* Detect the end of the options. */	if (ch == -1)	    break;		switch (ch) {	    	    case 'i':		indev = strdup(optarg);		break;	  	    case 'o':		outdev = strdup(optarg);		break;	    case 'x':		xy_accel_exp = atof(optarg);		break;	    case 'z':		z_accel_exp = atof(optarg);		break;	    case 'm':		z_accel_mult = atof(optarg);		break;	    case 'h':		usage();		exit(1);	    case '?':		usage();		exit(1);		break;	    default:		usage();		exit(1);	}    }    signal(SIGPIPE, SIG_IGN);    while (1) {	out = fopen(outdev, "w");	in = fopen(indev, "w");	fwrite(mousedev_imps_seq,1,sizeof(mousedev_imps_seq), in);fclose(in);fclose(out);if ((in == NULL) || (out == NULL)) {	    printf("%s: unable to open files\n", argv[0]);	    exit(1);	}		fread(&c,1,sizeof(int),in);	printf("%d\n", c);        	}}void usage() {    printf("usage:\n");    printf("-h | --help \t output this help message\n");    printf("-i | --input \t input-device (default: %s)\n",DEF_INDEV);    printf("-o | --output \t pseudo-mouse-device (default: %s)\n",DEF_OUTDEV);    printf("Acceleration:\n");    printf("-x | --vx\t XY_ACCEL_EXP (default: %.1f)\n",DEF_XY_EXP);    printf("-z | --vz\t Z_ACCEL_EXP (default: %.1f)\n",DEF_Z_EXP);    printf("-m | --mz\t Z_ACCEL_MULT (default: %.2f)\n",DEF_Z_MULT);}