source: abuse/tags/pd/macabuse/src/keytest.c @ 49

Last change on this file since 49 was 49, checked in by Sam Hocevar, 11 years ago
  • Imported original public domain release, for future reference.
  • Property svn:keywords set to Id
File size: 1.0 KB
Line 
1#include <fcntl.h>
2#include <sys/types.h>
3#include <sys/time.h>
4#include <stdlib.h>
5#include <stdio.h>
6#include <stdio.h>
7#include <unistd.h>
8#include <getopt.h>
9#include <signal.h>
10#include <termios.h>
11#include <linux/kd.h>
12#include <linux/vt.h>
13#include <linux/keyboard.h>
14#include <sys/ioctl.h>
15#include <sys/stat.h>
16
17
18int fd_ready_to_read(int fd)
19{
20  struct timeval tv={0,0};
21  fd_set kbd_set;
22  FD_ZERO(&kbd_set);
23  FD_SET(fd,&kbd_set);
24  select(FD_SETSIZE,&kbd_set,NULL,NULL,&tv);
25  return (FD_ISSET(fd,&kbd_set));
26}
27
28
29
30
31
32int key_fifo()
33{
34  int fd,child_pid;
35  FILE *fp;
36  fp=popen("keydrv","r");
37  fscanf(fp,"%d",&child_pid); 
38  pclose(fp);
39  do
40  { usleep(10000);
41  } while (access("/tmp/jckey-driver",R_OK));
42  fd=open("/tmp/jckey-driver",O_RDONLY);
43  return fd;
44}
45
46
47main()
48{
49  unsigned char key;
50 
51  int console_fd=key_fifo();
52  while (1)
53  {
54    if (fd_ready_to_read(console_fd))
55    {
56      read(console_fd,&key,1);     
57      printf("read key (%d)\n\r",(int)key);
58    } else usleep(10000);         
59  } 
60}
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