1 /* -*- mode: C; c-file-style: "gnu" -*- */
2 /* dbus-uuidgen.c The guts of the dbus-uuidgen binary live in libdbus, in this file.
3 *
4 * Copyright (C) 2006 Red Hat, Inc.
5 *
6 * Licensed under the Academic Free License version 2.1
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23 #include "dbus-uuidgen.h"
24 #include "dbus-internals.h"
25 #include "dbus-string.h"
26 #include "dbus-protocol.h"
27
28 #ifdef DBUS_WIN
29 #error "dbus-uuidgen should not be needed on Windows"
30 #endif
31
32 /**
33 * @defgroup DBusInternalsUuidgen dbus-uuidgen implementation
34 * @ingroup DBusInternals
35 * @brief Functions for dbus-uuidgen binary
36 *
37 * These are not considered part of the ABI, and if you call them
38 * you will get screwed by future changes.
39 *
40 * @{
41 */
42
43 static dbus_bool_t
return_uuid(DBusGUID * uuid,char ** uuid_p,DBusError * error)44 return_uuid (DBusGUID *uuid,
45 char **uuid_p,
46 DBusError *error)
47 {
48 if (uuid_p)
49 {
50 DBusString encoded;
51 _dbus_string_init (&encoded);
52 if (!_dbus_uuid_encode (uuid, &encoded) ||
53 !_dbus_string_steal_data (&encoded, uuid_p))
54 {
55 _DBUS_SET_OOM (error);
56 _dbus_string_free (&encoded);
57 return FALSE;
58 }
59 _dbus_string_free (&encoded);
60 }
61 return TRUE;
62 }
63
64 /**
65 * For use by the dbus-uuidgen binary ONLY, do not call this.
66 * We can and will change this function without modifying
67 * the libdbus soname.
68 *
69 * @param filename the file or #NULL for the machine ID file
70 * @param uuid_p out param to return the uuid
71 * @param create_if_not_found whether to create it if not already there
72 * @param error error return
73 * @returns #FALSE if error is set
74 */
75 dbus_bool_t
dbus_internal_do_not_use_get_uuid(const char * filename,char ** uuid_p,dbus_bool_t create_if_not_found,DBusError * error)76 dbus_internal_do_not_use_get_uuid (const char *filename,
77 char **uuid_p,
78 dbus_bool_t create_if_not_found,
79 DBusError *error)
80 {
81 DBusGUID uuid;
82
83 if (filename)
84 {
85 DBusString filename_str;
86 _dbus_string_init_const (&filename_str, filename);
87 if (!_dbus_read_uuid_file (&filename_str, &uuid, create_if_not_found, error))
88 goto error;
89 }
90 else
91 {
92 if (!_dbus_read_local_machine_uuid (&uuid, create_if_not_found, error))
93 goto error;
94 }
95
96 if (!return_uuid(&uuid, uuid_p, error))
97 goto error;
98
99 return TRUE;
100
101 error:
102 _DBUS_ASSERT_ERROR_IS_SET (error);
103 return FALSE;
104 }
105
106 /**
107 * For use by the dbus-uuidgen binary ONLY, do not call this.
108 * We can and will change this function without modifying
109 * the libdbus soname.
110 *
111 * @param uuid_p out param to return the uuid
112 * @returns #FALSE if no memory
113 */
114 dbus_bool_t
dbus_internal_do_not_use_create_uuid(char ** uuid_p)115 dbus_internal_do_not_use_create_uuid (char **uuid_p)
116 {
117 DBusGUID uuid;
118
119 _dbus_generate_uuid (&uuid);
120 return return_uuid (&uuid, uuid_p, NULL);
121 }
122
123 /** @} */
124