1/***************************************************************************
2 *
3 * hal-storage-closetray.c : CloseTray method handler
4 *
5 * Copyright (C) 2006 David Zeuthen, <david@fubar.dk>
6 * Copyright (C) 2006 Sun Microsystems, Inc.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
21 *
22 **************************************************************************/
23
24
25#ifdef HAVE_CONFIG_H
26#  include <config.h>
27#endif
28
29#include <stdio.h>
30#include <stdlib.h>
31#include <string.h>
32#include <glib.h>
33#include <glib/gstdio.h>
34#include <sys/types.h>
35#include <unistd.h>
36
37#include <libhal.h>
38#include <libhal-storage.h>
39#ifdef HAVE_POLKIT
40#include <libpolkit.h>
41#endif
42
43#include "hal-storage-shared.h"
44
45
46static void
47usage (void)
48{
49	fprintf (stderr, "This program should only be started by hald.\n");
50	exit (1);
51}
52
53
54void static
55unknown_closetray_error (const char *detail)
56{
57	fprintf (stderr, "org.freedesktop.Hal.Device.Storage.UnknownFailure\n");
58	fprintf (stderr, "%s\n", detail);
59	exit (1);
60}
61
62
63static void
64invalid_closetray_option (const char *option, const char *uid)
65{
66	fprintf (stderr, "org.freedesktop.Hal.Device.Storage.InvalidCloseTrayOption\n");
67	fprintf (stderr, "The option '%s' is not allowed for uid=%s\n", option, uid);
68	exit (1);
69}
70
71#ifdef __FreeBSD__
72#error Need FreeBSD specific changes here
73#endif
74
75
76int
77main (int argc, char *argv[])
78{
79	char *udi;
80	char *device;
81	LibHalDrive *drive;
82	DBusError error;
83	LibHalContext *hal_ctx = NULL;
84	DBusConnection *system_bus = NULL;
85#ifdef HAVE_POLKIT
86	LibPolKitContext *pol_ctx = NULL;
87#endif
88	char *invoked_by_uid;
89	char *invoked_by_syscon_name;
90	int i;
91	char closetray_options[1024];
92	char **given_options;
93	const char *end;
94
95	device = getenv ("HAL_PROP_BLOCK_DEVICE");
96	if (device == NULL)
97		usage ();
98
99	udi = getenv ("HAL_PROP_INFO_UDI");
100	if (udi == NULL)
101		usage ();
102
103	invoked_by_uid = getenv ("HAL_METHOD_INVOKED_BY_UID");
104
105	invoked_by_syscon_name = getenv ("HAL_METHOD_INVOKED_BY_SYSTEMBUS_CONNECTION_NAME");
106
107	dbus_error_init (&error);
108	if ((hal_ctx = libhal_ctx_init_direct (&error)) == NULL) {
109		printf ("Cannot connect to hald\n");
110		LIBHAL_FREE_DBUS_ERROR (&error);
111		usage ();
112	}
113
114	dbus_error_init (&error);
115	system_bus = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
116	if (system_bus == NULL) {
117		printf ("Cannot connect to the system bus\n");
118		LIBHAL_FREE_DBUS_ERROR (&error);
119		usage ();
120	}
121#ifdef HAVE_POLKIT
122	pol_ctx = libpolkit_new_context (system_bus);
123	if (pol_ctx == NULL) {
124		printf ("Cannot get libpolkit context\n");
125		unknown_closetray_error ("Cannot get libpolkit context");
126	}
127#endif
128
129	/* read from stdin */
130	if (strlen (fgets (closetray_options, sizeof (closetray_options), stdin)) > 0)
131		closetray_options [strlen (closetray_options) - 1] = '\0';
132	/* validate that input from stdin is UTF-8 */
133	if (!g_utf8_validate (closetray_options, -1, &end))
134		unknown_closetray_error ("Error validating closetray_options as UTF-8");
135#ifdef DEBUG
136	printf ("closetray_options  = '%s'\n", closetray_options);
137#endif
138
139	/* delete any trailing whitespace options from splitting the string */
140	given_options = g_strsplit (closetray_options, "\t", 0);
141	for (i = g_strv_length (given_options) - 1; i >= 0; --i) {
142		if (strlen (given_options[i]) > 0)
143			break;
144		given_options[i] = NULL;
145	}
146
147	/* check options */
148	for (i = 0; given_options[i] != NULL; i++) {
149		char *given = given_options[i];
150
151		/* none supported right now */
152
153		invalid_closetray_option (given, invoked_by_uid);
154	}
155	g_strfreev (given_options);
156
157	/* should be storage */
158	if ((drive = libhal_drive_from_udi (hal_ctx, udi)) == NULL) {
159		unknown_closetray_error ("Cannot get drive");
160	}
161
162	/* use handle_eject() with the closetray option */
163	handle_eject (hal_ctx,
164#ifdef HAVE_POLKIT
165		      pol_ctx,
166#endif
167		      libhal_drive_get_udi (drive),
168		      drive,
169		      libhal_drive_get_device_file (drive),
170		      invoked_by_uid,
171		      invoked_by_syscon_name,
172		      TRUE /* closetray option */,
173		      system_bus);
174
175	return 0;
176}
177
178
179