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#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <linux/input.h>
#include <linux/uinput.h>
#include "input.h"
/* ------------------------------------------------------------------ */
static int usage(char *prog, int error)
{
fprintf(error ? stderr : stdout,
"usage: %s -h this text\n"
"usage: %s -l list keys\n"
"usage: %s [ -v ] <key> send key\n",
prog, prog, prog);
exit(error);
}
static int send_key(int fd, int key, bool down)
{
struct input_event ev;
memset(&ev, 0, sizeof(ev));
ev.type = EV_KEY;
ev.code = key;
ev.value = down ? 0 : 1;
write(fd, &ev, sizeof(ev));
memset(&ev, 0, sizeof(ev));
ev.type = EV_SYN;
write(fd, &ev, sizeof(ev));
return 0;
}
int main(int argc, char *argv[])
{
static struct uinput_user_dev uidev = {
.name = "emulate-key",
};
int verbose = 0;
int c, key, fd;
char *name;
for (;;) {
if (-1 == (c = getopt(argc, argv, "hvl")))
break;
switch (c) {
case 'v':
verbose = 1;
break;
case 'l':
for (key = 0; key < KEY_MAX; key++) {
name = ev_type_name(EV_KEY, key);
if (!name)
continue;
if (strcmp(name, "???") == 0)
continue;
printf("%s%s", key ? ", " : "", name);
}
printf("\n");
exit(0);
case 'h':
usage(argv[0],0);
default:
usage(argv[0],1);
}
}
if (optind == argc) {
fprintf(stderr, "%s: no keyname given\n",
argv[0]);
exit(1);
}
for (key = 0; key < KEY_MAX; key++) {
if (strcmp(ev_type_name(EV_KEY, key), argv[optind]) == 0) {
break;
}
}
if (key == KEY_MAX) {
fprintf(stderr, "%s: key '%s' not found\n",
argv[0], argv[optind]);
exit(1);
}
if (verbose) {
printf("Sending '%s' (%d) key (down+up).\n", argv[optind], key);
}
fd = open("/dev/uinput", O_WRONLY | O_NONBLOCK);
if (fd < 0) {
perror("open /dev/uinput");
exit(1);
}
ioctl(fd, UI_SET_EVBIT, EV_SYN);
ioctl(fd, UI_SET_EVBIT, EV_KEY);
ioctl(fd, UI_SET_KEYBIT, key);
write(fd, &uidev, sizeof(uidev));
ioctl(fd, UI_DEV_CREATE);
usleep(100000);
send_key(fd, key, true);
usleep(100000);
send_key(fd, key, false);
usleep(100000);
ioctl(fd, UI_DEV_DESTROY);
return 0;
}
/* ---------------------------------------------------------------------
* Local variables:
* c-basic-offset: 8
* End:
*/
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