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4ce5c3a694
It is possible for retrieving the machine ID to fail, either because dbus was installed incorrectly (machine ID absent or corrupt), or in 32-bit builds, because stat() on the machine ID fails with EOVERFLOW if it has an out-of-range timestamp or inode number. dbus has historically treated this as a faulty installation, raising a warning which by default causes the process to crash. Unfortunately, dbus_get_local_machine_id() never had a way to report errors, so it has no alternative for that (bad) error handling. In dbus >= 1.12.0, we can use dbus_try_get_local_machine_id() to get the same information, but with the ability to cope gracefully with errors. ibus won't work in this situation, but that's better than crashing. (cherry picked from commit 91198baed40d5709020c3001e9234f4580df696a) Mitigates: https://github.com/ValveSoftware/steam-for-linux/issues/9605 Signed-off-by: Simon McVittie <smcv@collabora.com>
106 lines
5.3 KiB
C
106 lines
5.3 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#ifndef SDL_dbus_h_
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#define SDL_dbus_h_
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#ifdef HAVE_DBUS_DBUS_H
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#define SDL_USE_LIBDBUS 1
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#include "SDL_stdinc.h"
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#include <dbus/dbus.h>
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typedef struct SDL_DBusContext
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{
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DBusConnection *session_conn;
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DBusConnection *system_conn;
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DBusConnection *(*bus_get_private)(DBusBusType, DBusError *);
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dbus_bool_t (*bus_register)(DBusConnection *, DBusError *);
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void (*bus_add_match)(DBusConnection *, const char *, DBusError *);
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DBusConnection *(*connection_open_private)(const char *, DBusError *);
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void (*connection_set_exit_on_disconnect)(DBusConnection *, dbus_bool_t);
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dbus_bool_t (*connection_get_is_connected)(DBusConnection *);
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dbus_bool_t (*connection_add_filter)(DBusConnection *, DBusHandleMessageFunction, void *, DBusFreeFunction);
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dbus_bool_t (*connection_try_register_object_path)(DBusConnection *, const char *,
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const DBusObjectPathVTable *, void *, DBusError *);
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dbus_bool_t (*connection_send)(DBusConnection *, DBusMessage *, dbus_uint32_t *);
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DBusMessage *(*connection_send_with_reply_and_block)(DBusConnection *, DBusMessage *, int, DBusError *);
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void (*connection_close)(DBusConnection *);
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void (*connection_ref)(DBusConnection *);
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void (*connection_unref)(DBusConnection *);
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void (*connection_flush)(DBusConnection *);
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dbus_bool_t (*connection_read_write)(DBusConnection *, int);
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DBusDispatchStatus (*connection_dispatch)(DBusConnection *);
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dbus_bool_t (*message_is_signal)(DBusMessage *, const char *, const char *);
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DBusMessage *(*message_new_method_call)(const char *, const char *, const char *, const char *);
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dbus_bool_t (*message_append_args)(DBusMessage *, int, ...);
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dbus_bool_t (*message_append_args_valist)(DBusMessage *, int, va_list);
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void (*message_iter_init_append)(DBusMessage *, DBusMessageIter *);
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dbus_bool_t (*message_iter_open_container)(DBusMessageIter *, int, const char *, DBusMessageIter *);
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dbus_bool_t (*message_iter_append_basic)(DBusMessageIter *, int, const void *);
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dbus_bool_t (*message_iter_close_container)(DBusMessageIter *, DBusMessageIter *);
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dbus_bool_t (*message_get_args)(DBusMessage *, DBusError *, int, ...);
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dbus_bool_t (*message_get_args_valist)(DBusMessage *, DBusError *, int, va_list);
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dbus_bool_t (*message_iter_init)(DBusMessage *, DBusMessageIter *);
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dbus_bool_t (*message_iter_next)(DBusMessageIter *);
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void (*message_iter_get_basic)(DBusMessageIter *, void *);
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int (*message_iter_get_arg_type)(DBusMessageIter *);
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void (*message_iter_recurse)(DBusMessageIter *, DBusMessageIter *);
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void (*message_unref)(DBusMessage *);
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dbus_bool_t (*threads_init_default)(void);
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void (*error_init)(DBusError *);
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dbus_bool_t (*error_is_set)(const DBusError *);
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void (*error_free)(DBusError *);
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char *(*get_local_machine_id)(void);
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char *(*try_get_local_machine_id)(DBusError *);
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void (*free)(void *);
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void (*free_string_array)(char **);
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void (*shutdown)(void);
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} SDL_DBusContext;
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extern void SDL_DBus_Init(void);
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extern void SDL_DBus_Quit(void);
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extern SDL_DBusContext *SDL_DBus_GetContext(void);
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/* These use the built-in Session connection. */
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extern SDL_bool SDL_DBus_CallMethod(const char *node, const char *path, const char *interface, const char *method, ...);
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extern SDL_bool SDL_DBus_CallVoidMethod(const char *node, const char *path, const char *interface, const char *method, ...);
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extern SDL_bool SDL_DBus_QueryProperty(const char *node, const char *path, const char *interface, const char *property, const int expectedtype, void *result);
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/* These use whatever connection you like. */
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extern SDL_bool SDL_DBus_CallMethodOnConnection(DBusConnection *conn, const char *node, const char *path, const char *interface, const char *method, ...);
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extern SDL_bool SDL_DBus_CallVoidMethodOnConnection(DBusConnection *conn, const char *node, const char *path, const char *interface, const char *method, ...);
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extern SDL_bool SDL_DBus_QueryPropertyOnConnection(DBusConnection *conn, const char *node, const char *path, const char *interface, const char *property, const int expectedtype, void *result);
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extern void SDL_DBus_ScreensaverTickle(void);
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extern SDL_bool SDL_DBus_ScreensaverInhibit(SDL_bool inhibit);
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extern char *SDL_DBus_GetLocalMachineId(void);
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#endif /* HAVE_DBUS_DBUS_H */
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#endif /* SDL_dbus_h_ */
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/* vi: set ts=4 sw=4 expandtab: */
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