master xplshn/aruu / cmd / linux / eject.c
 1/* See LICENSE file for copyright and license details. */
 2
 3#include <sys/ioctl.h>
 4#include <sys/stat.h>
 5#include <sys/types.h>
 6
 7#include <fcntl.h>
 8#include <stdio.h>
 9#include <unistd.h>
10
11#include "paths.h"
12#include "util.h"
13
14enum {
15  OPEN_TRAY  = 0x5309,
16  CLOSE_TRAY = 0x5319,
17};
18
19static int tflag = 0;
20static int ret   = 0;
21
22static void
23eject(const char *devname)
24{
25  int fd, out;
26
27  if ((fd = open(devname, O_RDONLY | O_NONBLOCK)) < 0) {
28    weprintf("open %s:", devname);
29    ret = 1;
30  } else if (tflag && ioctl(fd, CLOSE_TRAY, &out) < 0) {
31    weprintf("ioctl %s:", devname);
32    ret = 1;
33  } else if (!tflag && ioctl(fd, OPEN_TRAY, &out) < 0) {
34    weprintf("ioctl %s:", devname);
35    ret = 1;
36  }
37
38  if (fd >= 0 && close(fd) < 0) {
39    weprintf("close %s:", devname);
40    ret = 1;
41  }
42}
43
44static void
45usage(void)
46{
47  eprintf("usage: %s [-t] [device ...]\n", argv0);
48}
49
50// ?man eject: eject removable media
51// ?man arguments: device ...
52// ?man eject optical discs or other removable storage media
53int
54main(int argc, char *argv[])
55{
56  ARGBEGIN
57  {
58    // ?man -t: sort or specify timestamp
59    case 't':
60      tflag = 1;
61      break;
62    default:
63      usage();
64  }
65  ARGEND;
66
67  if (!argc) {
68    eject(ARUU_PATH_DEV "/sr0");
69  } else {
70    for (; *argv; argc--, argv++)
71      eject(*argv);
72  }
73
74  return ret;
75}