uinput模拟鼠标

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <stdint.h>
#include <stdio.h>

#include <linux/input.h>
#include <linux/uinput.h>

void mouse_move(int fd, int dx, int dy)
{
	struct input_event ev;

	memset(&ev, 0, sizeof(struct input_event));
	ev.type = EV_REL;
	ev.code = REL_X;
	ev.value = dx;
	if (write(fd, &ev, sizeof(struct input_event)) < 0) {
		printf("move error\n");
	}

	memset(&ev, 0, sizeof(struct input_event));
	ev.type = EV_REL;
	ev.code = REL_Y;
	ev.value = dy;
	if (write(fd, &ev, sizeof(struct input_event)) < 0) {
		printf("move error\n");
	}

	
	memset(&ev, 0, sizeof(struct input_event));
	ev.type = EV_SYN;
	ev.code = SYN_REPORT;
	ev.value = 0;
	if (write(fd, &ev, sizeof(struct input_event)) < 0) {
		printf("move error\n");
	}
}

void mouse_report_key(int fd, uint16_t type, uint16_t keycode, int32_t value)
{
	struct input_event ev;

	memset(&ev, 0, sizeof(struct input_event));

	ev.type = type;
	ev.code = keycode;
	ev.value = value;

	if (write(fd, &ev, sizeof(struct input_event)) < 0) {
		printf("key report error\n");
	}
}

int main(void)
{

	struct uinput_user_dev mouse;
	int fd, ret;

	int dx, dy;

	fd = open("/dev/uinput", O_WRONLY | O_NONBLOCK);
	if (fd < 0) {
		return fd;
	}

	ioctl(fd, UI_SET_EVBIT, EV_SYN);

	ioctl(fd, UI_SET_EVBIT, EV_KEY);
	ioctl(fd, UI_SET_KEYBIT, BTN_LEFT);
	ioctl(fd, UI_SET_KEYBIT, BTN_RIGHT);
	ioctl(fd, UI_SET_KEYBIT, BTN_MIDDLE);

	ioctl(fd, UI_SET_EVBIT, EV_REL);
	ioctl(fd, UI_SET_RELBIT, REL_X);
	ioctl(fd, UI_SET_RELBIT, REL_Y);

	/*ioctl(fd, UI_SET_EVBIT, EV_ABS);
	ioctl(fd, UI_SET_ABSBIT, ABS_X);
	ioctl(fd, UI_SET_ABSBIT, ABS_Y);
	ioctl(fd, UI_SET_ABSBIT, ABS_PRESSURE);*/

	memset(&mouse, 0, sizeof(struct uinput_user_dev));
	snprintf(mouse.name, UINPUT_MAX_NAME_SIZE, "mouse");
	mouse.id.bustype = BUS_USB;
	mouse.id.vendor = 0x1234;
	mouse.id.product = 0xfedc;
	mouse.id.version = 1;

	/*mouse.absmin[ABS_X] = 0;
	mouse.absmax[ABS_X] = 1023;
	mouse.absfuzz[ABS_X] = 0;
	mouse.absflat[ABS_X] = 0;
	mouse.absmin[ABS_Y] = 0;
	mouse.absmax[ABS_Y] = 767;
	mouse.absfuzz[ABS_Y] = 0;
	mouse.absflat[ABS_Y] = 0;*/

	ret = write(fd, &mouse, sizeof(struct uinput_user_dev));

	ret = ioctl(fd, UI_DEV_CREATE);
	if (ret < 0) {
		close(fd);
		return ret;
	}


	/*sleep(10);
	mouse_report_key(fd, EV_KEY, BTN_RIGHT, 1);
	mouse_report_key(fd, EV_KEY, BTN_RIGHT, 0);
	mouse_report_key(fd, EV_SYN, SYN_REPORT, 0);*/

	dx = dy = 10;
	while (1) {
		mouse_move(fd, dx, dy);
		sleep(1);
	}

	ioctl(fd, UI_DEV_DESTROY);

	close(fd);

	return 0;
}