D-Bus 1.15.2
dbus-server-unix.c
1/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
2/* dbus-server-unix.c Server implementation for Unix network protocols.
3 *
4 * Copyright (C) 2002, 2003, 2004 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 *
22 */
23
24#include <config.h>
25#include "dbus-internals.h"
26#include "dbus-server-socket.h"
27#include "dbus-server-launchd.h"
28#include "dbus-transport-unix.h"
29#include "dbus-connection-internal.h"
30#include "dbus-sysdeps-unix.h"
31#include "dbus-string.h"
32
52DBusServerListenResult
54 DBusServer **server_p,
55 DBusError *error)
56{
57 const char *method;
58
59 *server_p = NULL;
60
61 method = dbus_address_entry_get_method (entry);
62 if (strcmp (method, "systemd") == 0)
63 {
64 int i, n;
65 DBusSocket *fds;
66 DBusString address;
67
68 n = _dbus_listen_systemd_sockets (&fds, error);
69 if (n < 0)
70 {
71 _DBUS_ASSERT_ERROR_IS_SET (error);
72 return DBUS_SERVER_LISTEN_DID_NOT_CONNECT;
73 }
74
75 if (!_dbus_string_init (&address))
76 goto systemd_oom;
77
78 for (i = 0; i < n; i++)
79 {
80 if (i > 0)
81 {
82 if (!_dbus_string_append (&address, ";"))
83 goto systemd_oom;
84 }
85 if (!_dbus_append_address_from_socket (fds[i], &address, error))
86 goto systemd_err;
87 }
88
89 *server_p = _dbus_server_new_for_socket (fds, n, &address, NULL, error);
90 if (*server_p == NULL)
91 goto systemd_err;
92
93 dbus_free (fds);
94 _dbus_string_free (&address);
95
96 return DBUS_SERVER_LISTEN_OK;
97
98 systemd_oom:
99 _DBUS_SET_OOM (error);
100 systemd_err:
101 for (i = 0; i < n; i++)
102 {
103 _dbus_close_socket (&fds[i], NULL);
104 }
105 dbus_free (fds);
106 _dbus_string_free (&address);
107
108 return DBUS_SERVER_LISTEN_DID_NOT_CONNECT;
109 }
110#ifdef DBUS_ENABLE_LAUNCHD
111 else if (strcmp (method, "launchd") == 0)
112 {
113 const char *launchd_env_var = dbus_address_entry_get_value (entry, "env");
114 if (launchd_env_var == NULL)
115 {
116 _dbus_set_bad_address (error, "launchd", "env", NULL);
117 return DBUS_SERVER_LISTEN_DID_NOT_CONNECT;
118 }
119 *server_p = _dbus_server_new_for_launchd (launchd_env_var, error);
120
121 if (*server_p != NULL)
122 {
123 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
124 return DBUS_SERVER_LISTEN_OK;
125 }
126 else
127 {
128 _DBUS_ASSERT_ERROR_IS_SET(error);
129 return DBUS_SERVER_LISTEN_DID_NOT_CONNECT;
130 }
131 }
132#endif
133 else
134 {
135 /* If we don't handle the method, we return NULL with the
136 * error unset
137 */
138 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
139 return DBUS_SERVER_LISTEN_NOT_HANDLED;
140 }
141}
142
void _dbus_set_bad_address(DBusError *error, const char *address_problem_type, const char *address_problem_field, const char *address_problem_other)
Sets DBUS_ERROR_BAD_ADDRESS.
Definition: dbus-address.c:68
const char * dbus_address_entry_get_method(DBusAddressEntry *entry)
Returns the method string of an address entry.
Definition: dbus-address.c:230
const char * dbus_address_entry_get_value(DBusAddressEntry *entry, const char *key)
Returns a value from a key of an entry.
Definition: dbus-address.c:247
#define NULL
A null pointer, defined appropriately for C or C++.
void dbus_free(void *memory)
Frees a block of memory previously allocated by dbus_malloc() or dbus_malloc0().
Definition: dbus-memory.c:692
DBusServer * _dbus_server_new_for_launchd(const char *launchd_env_var, DBusError *error)
Creates a new server from launchd.
DBusServer * _dbus_server_new_for_socket(DBusSocket *fds, int n_fds, const DBusString *address, DBusNonceFile *noncefile, DBusError *error)
Creates a new server listening on the given file descriptor.
DBusServerListenResult _dbus_server_listen_platform_specific(DBusAddressEntry *entry, DBusServer **server_p, DBusError *error)
Tries to interpret the address entry in a platform-specific way, creating a platform-specific server ...
dbus_bool_t _dbus_string_append(DBusString *str, const char *buffer)
Appends a nul-terminated C-style string to a DBusString.
Definition: dbus-string.c:978
dbus_bool_t _dbus_string_init(DBusString *str)
Initializes a string.
Definition: dbus-string.c:180
void _dbus_string_free(DBusString *str)
Frees a string created by _dbus_string_init(), and fills it with the same contents as #_DBUS_STRING_I...
Definition: dbus-string.c:276
int _dbus_listen_systemd_sockets(DBusSocket **fds, DBusError *error)
Acquires one or more sockets passed in from systemd.
dbus_bool_t _dbus_append_address_from_socket(DBusSocket fd, DBusString *address, DBusError *error)
Read the address from the socket and append it to the string.
dbus_bool_t _dbus_close_socket(DBusSocket *fd, DBusError *error)
Closes a socket and invalidates it.
Internals of DBusAddressEntry.
Definition: dbus-address.c:47
Object representing an exception.
Definition: dbus-errors.h:49
Internals of DBusServer object.
Socket interface.
Definition: dbus-sysdeps.h:179