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Diffstat (limited to 'src/3rdparty/libdbus/dbus/dbus-sysdeps.h')
| -rw-r--r-- | src/3rdparty/libdbus/dbus/dbus-sysdeps.h | 775 |
1 files changed, 775 insertions, 0 deletions
diff --git a/src/3rdparty/libdbus/dbus/dbus-sysdeps.h b/src/3rdparty/libdbus/dbus/dbus-sysdeps.h new file mode 100644 index 00000000..27053a43 --- /dev/null +++ b/src/3rdparty/libdbus/dbus/dbus-sysdeps.h @@ -0,0 +1,775 @@ +/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ +/* dbus-sysdeps.h Wrappers around system/libc features (internal to D-Bus implementation) + * + * Copyright (C) 2002, 2003 Red Hat, Inc. + * Copyright (C) 2003 CodeFactory AB + * + * SPDX-License-Identifier: AFL-2.1 OR GPL-2.0-or-later + * + * Licensed under the Academic Free License version 2.1 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +#ifndef DBUS_SYSDEPS_H +#define DBUS_SYSDEPS_H + +#ifndef VERSION +#warning Please include config.h before dbus-sysdeps.h +#include "config.h" +#endif + +#include <stdint.h> + +#ifdef HAVE_INTTYPES_H +#include <inttypes.h> +#endif + +#ifdef HAVE_STDATOMIC_H +#include <stdatomic.h> +#endif + +#include <dbus/dbus-errors.h> +#include <dbus/dbus-file.h> +#include <dbus/dbus-string.h> + +/* this is perhaps bogus, but strcmp() etc. are faster if we use the + * stuff straight out of string.h, so have this here for now. + */ +#include <string.h> +#include <stdarg.h> + +#if !defined(BROKEN_POLL) && (defined(__APPLE__) || defined(__INTERIX)) + /* Following libcurl's example, we blacklist poll() on Darwin + * (macOS, iOS, etc.) and Interix due to a history of implementation + * issues. + * https://github.com/curl/curl/blob/master/m4/curl-functions.m4 + * + * On unspecified older macOS versions, poll() failed if given a + * device node to poll. + * + * On macOS < 10.9, poll() with nfds=0 failed instead of waiting for + * the timeout and then succeeding. + * + * On macOS >= 10.12, poll() with nfds=0 succeeded immediately + * instead of waiting for the timeout, resulting in busy-looping. + * + * On Interix, poll() apparently only works for files in /proc. + * + * The "legacy" build flavour in our CI machinery defines BROKEN_POLL + * on whatever platform is in use (normally Linux) to force use of the + * same select()-based poll() emulation that we use for macOS, Interix, + * and any platform that lacks a real poll(), so that we can test it + * more regularly. + */ +# define BROKEN_POLL +#endif + +/* Normally we'd only include this in dbus-sysdeps-unix.c. + * However, the member names in DBusPollFD are (deliberately) the same as + * in POSIX struct pollfd, and AIX's poll() implementation is known to + * do things like "#define events reqevents", which would break that approach. + * Defend against that by ensuring that if it's renamed anywhere, it's renamed + * everywhere. + */ +#ifdef HAVE_POLL +#include <poll.h> +#endif + +#ifdef DBUS_WINCE +/* Windows CE lacks some system functions (such as errno and clock). + We bring them in here. */ +#include "dbus-sysdeps-wince-glue.h" +#endif + +#ifdef DBUS_WIN +#include <ws2tcpip.h> +#endif + +DBUS_BEGIN_DECLS + +#ifdef DBUS_WIN +#define _DBUS_PATH_SEPARATOR ";" +#else +#define _DBUS_PATH_SEPARATOR ":" +#endif + +/* Forward declarations */ + + +/** An opaque list type */ +typedef struct DBusList DBusList; + +/** Object that contains a list of credentials such as UNIX or Windows user ID */ +typedef struct DBusCredentials DBusCredentials; + +/** A wrapper around a pipe descriptor or handle */ +typedef struct DBusPipe DBusPipe; + +/** + * @addtogroup DBusSysdeps + * + * @{ + */ + +DBUS_PRIVATE_EXPORT +void _dbus_abort (void) _DBUS_GNUC_NORETURN; + +dbus_bool_t _dbus_check_setuid (void); +DBUS_PRIVATE_EXPORT +const char* _dbus_getenv (const char *varname); +DBUS_PRIVATE_EXPORT +dbus_bool_t _dbus_clearenv (void); +char ** _dbus_get_environment (void); + +/** A process ID */ +typedef unsigned long dbus_pid_t; +/** A user ID */ +typedef unsigned long dbus_uid_t; +/** A group ID */ +typedef unsigned long dbus_gid_t; + +/** an invalid PID used to represent an uninitialized dbus_pid_t field */ +#define DBUS_PID_UNSET ((dbus_pid_t) -1) +/** an invalid UID used to represent an uninitialized dbus_uid_t field */ +#define DBUS_UID_UNSET ((dbus_uid_t) -1) +/** an invalid GID used to represent an uninitialized dbus_gid_t field */ +#define DBUS_GID_UNSET ((dbus_gid_t) -1) + +/** an appropriate printf format for dbus_pid_t */ +#define DBUS_PID_FORMAT "%lu" +/** an appropriate printf format for dbus_uid_t */ +#define DBUS_UID_FORMAT "%lu" +/** an appropriate printf format for dbus_gid_t */ +#define DBUS_GID_FORMAT "%lu" + +/** + * Socket interface + */ +#ifdef DBUS_WIN + +typedef struct { SOCKET sock; } DBusSocket; +# define DBUS_SOCKET_FORMAT "Iu" +# define DBUS_SOCKET_INIT { INVALID_SOCKET } + +_DBUS_WARN_UNUSED_RESULT +static inline SOCKET +_dbus_socket_printable (DBusSocket s) { return s.sock; } + +_DBUS_WARN_UNUSED_RESULT +static inline dbus_bool_t +_dbus_socket_is_valid (DBusSocket s) { return s.sock != INVALID_SOCKET; } + +static inline void +_dbus_socket_invalidate (DBusSocket *s) { s->sock = INVALID_SOCKET; } + +_DBUS_WARN_UNUSED_RESULT +static inline int +_dbus_socket_get_int (DBusSocket s) { return (int)s.sock; } + +#else /* not DBUS_WIN */ + +typedef struct { int fd; } DBusSocket; +# define DBUS_SOCKET_FORMAT "d" +# define DBUS_SOCKET_INIT { -1 } + +_DBUS_WARN_UNUSED_RESULT +static inline int +_dbus_socket_printable (DBusSocket s) { return s.fd; } + +_DBUS_WARN_UNUSED_RESULT +static inline dbus_bool_t +_dbus_socket_is_valid (DBusSocket s) { return s.fd >= 0; } + +static inline void +_dbus_socket_invalidate (DBusSocket *s) { s->fd = -1; } + +_DBUS_WARN_UNUSED_RESULT +static inline int +_dbus_socket_get_int (DBusSocket s) { return s.fd; } + +#endif /* not DBUS_WIN */ + +_DBUS_WARN_UNUSED_RESULT +static inline DBusSocket +_dbus_socket_get_invalid (void) +{ + DBusSocket s = DBUS_SOCKET_INIT; + + return s; +} + +dbus_bool_t _dbus_set_socket_nonblocking (DBusSocket fd, + DBusError *error); + +DBUS_PRIVATE_EXPORT +dbus_bool_t _dbus_close_socket (DBusSocket *fd, + DBusError *error); +DBUS_PRIVATE_EXPORT +int _dbus_read_socket (DBusSocket fd, + DBusString *buffer, + int count); +DBUS_PRIVATE_EXPORT +int _dbus_write_socket (DBusSocket fd, + const DBusString *buffer, + int start, + int len); +int _dbus_write_socket_two (DBusSocket fd, + const DBusString *buffer1, + int start1, + int len1, + const DBusString *buffer2, + int start2, + int len2); + +int _dbus_read_socket_with_unix_fds (DBusSocket fd, + DBusString *buffer, + int count, + int *fds, + unsigned int *n_fds); +DBUS_PRIVATE_EXPORT +int _dbus_write_socket_with_unix_fds (DBusSocket fd, + const DBusString *buffer, + int start, + int len, + const int *fds, + int n_fds); +int _dbus_write_socket_with_unix_fds_two (DBusSocket fd, + const DBusString *buffer1, + int start1, + int len1, + const DBusString *buffer2, + int start2, + int len2, + const int *fds, + int n_fds); + +DBusSocket _dbus_connect_tcp_socket (const char *host, + const char *port, + const char *family, + DBusError *error); +DBusSocket _dbus_connect_tcp_socket_with_nonce (const char *host, + const char *port, + const char *family, + const char *noncefile, + DBusError *error); +int _dbus_listen_tcp_socket (const char *host, + const char *port, + const char *family, + DBusString *retport, + const char **retfamily, + DBusSocket **fds_p, + DBusError *error); +DBusSocket _dbus_accept (DBusSocket listen_fd); + +dbus_bool_t _dbus_read_credentials_socket (DBusSocket client_fd, + DBusCredentials *credentials, + DBusError *error); +dbus_bool_t _dbus_send_credentials_socket (DBusSocket server_fd, + DBusError *error); + +typedef enum +{ + DBUS_CREDENTIALS_ADD_FLAGS_USER_DATABASE = (1 << 0), + DBUS_CREDENTIALS_ADD_FLAGS_NONE = 0 +} DBusCredentialsAddFlags; + +dbus_bool_t _dbus_credentials_add_from_user (DBusCredentials *credentials, + const DBusString *username, + DBusCredentialsAddFlags flags, + DBusError *error); + +dbus_bool_t _dbus_credentials_add_from_current_process (DBusCredentials *credentials); +DBUS_PRIVATE_EXPORT +dbus_bool_t _dbus_append_user_from_current_process (DBusString *str); + +dbus_bool_t _dbus_parse_unix_user_from_config (const DBusString *username, + dbus_uid_t *uid_p); +dbus_bool_t _dbus_parse_unix_group_from_config (const DBusString *groupname, + dbus_gid_t *gid_p); +dbus_bool_t _dbus_unix_groups_from_uid (dbus_uid_t uid, + dbus_gid_t **group_ids, + int *n_group_ids, + DBusError *error); +dbus_bool_t _dbus_unix_user_is_at_console (dbus_uid_t uid, + DBusError *error); +dbus_bool_t _dbus_unix_user_is_process_owner (dbus_uid_t uid); +dbus_bool_t _dbus_windows_user_is_process_owner (const char *windows_sid); + +dbus_bool_t _dbus_append_keyring_directory_for_credentials (DBusString *directory, + DBusCredentials *credentials); + +dbus_bool_t _dbus_daemon_unpublish_session_bus_address (void); + +dbus_bool_t _dbus_socket_can_pass_unix_fd(DBusSocket fd); + +/* PID FDs are Linux-specific. */ +#ifdef DBUS_WIN +static inline dbus_pid_t _dbus_resolve_pid_fd (int pid_fd) +{ + return DBUS_PID_UNSET; +} + +#else +DBUS_PRIVATE_EXPORT +dbus_pid_t _dbus_resolve_pid_fd (int pid_fd); +#endif + +/** Opaque type representing an atomically-modifiable integer + * that can be used from multiple threads. + */ +typedef struct DBusAtomic DBusAtomic; + +/** + * An atomic integer safe to increment or decrement from multiple threads. + */ +struct DBusAtomic +{ +#ifdef HAVE_STDATOMIC_H + atomic_int value; /**< Value of the atomic integer. */ +#elif defined(DBUS_WIN) + volatile long value; /**< Value of the atomic integer. */ +#else + volatile dbus_int32_t value; /**< Value of the atomic integer. */ +#endif +}; + +DBUS_PRIVATE_EXPORT +dbus_int32_t _dbus_atomic_inc (DBusAtomic *atomic); +DBUS_PRIVATE_EXPORT +dbus_int32_t _dbus_atomic_dec (DBusAtomic *atomic); +DBUS_PRIVATE_EXPORT +dbus_int32_t _dbus_atomic_get (DBusAtomic *atomic); +DBUS_PRIVATE_EXPORT +void _dbus_atomic_set_zero (DBusAtomic *atomic); +DBUS_PRIVATE_EXPORT +void _dbus_atomic_set_nonzero (DBusAtomic *atomic); + +#ifdef DBUS_WIN + +/* On Windows, you can only poll sockets. We emulate Unix poll() using + * select(), so it doesn't matter what precise type we put in DBusPollFD; + * use DBusSocket so that the compiler can check we are doing it right. + */ +typedef DBusSocket DBusPollable; +# define DBUS_POLLABLE_FORMAT "Iu" + +static inline DBusPollable +_dbus_socket_get_pollable (DBusSocket s) { return s; } + +static inline SOCKET +_dbus_pollable_printable (DBusPollable p) { return p.sock; } + +static inline dbus_bool_t +_dbus_pollable_is_valid (DBusPollable p) { return _dbus_socket_is_valid (p); } + +static inline void +_dbus_pollable_invalidate (DBusPollable *p) { _dbus_socket_invalidate (p); } + +static inline dbus_bool_t +_dbus_pollable_equals (DBusPollable a, DBusPollable b) { return a.sock == b.sock; } + +#else /* !DBUS_WIN */ + +/* On Unix, you can poll sockets, pipes, etc., and we must put exactly + * "int" in DBusPollFD because we're relying on its layout exactly matching + * struct pollfd. (This is silly, and one day we should use a better + * abstraction.) + */ +typedef int DBusPollable; +# define DBUS_POLLABLE_FORMAT "d" + +static inline DBusPollable +_dbus_socket_get_pollable (DBusSocket s) { return s.fd; } + +static inline int +_dbus_pollable_printable (DBusPollable p) { return p; } + +static inline dbus_bool_t +_dbus_pollable_is_valid (DBusPollable p) { return p >= 0; } + +static inline void +_dbus_pollable_invalidate (DBusPollable *p) { *p = -1; } + +static inline dbus_bool_t +_dbus_pollable_equals (DBusPollable a, DBusPollable b) { return a == b; } + +#endif /* !DBUS_WIN */ + +#if defined(HAVE_POLL) && !defined(BROKEN_POLL) +/** + * A portable struct pollfd wrapper, or an emulation of struct pollfd + * on platforms where poll() is missing or broken. + */ +typedef struct pollfd DBusPollFD; + +/** There is data to read */ +#define _DBUS_POLLIN POLLIN +/** There is urgent data to read */ +#define _DBUS_POLLPRI POLLPRI +/** Writing now will not block */ +#define _DBUS_POLLOUT POLLOUT +/** Error condition */ +#define _DBUS_POLLERR POLLERR +/** Hung up */ +#define _DBUS_POLLHUP POLLHUP +/** Invalid request: fd not open */ +#define _DBUS_POLLNVAL POLLNVAL +#else +/* Emulate poll() via select(). Because we aren't really going to call + * poll(), any similarly-shaped struct is acceptable, and any power of 2 + * will do for the events/revents; these values happen to match Linux + * and *BSD. */ +typedef struct +{ + DBusPollable fd; /**< File descriptor */ + short events; /**< Events to poll for */ + short revents; /**< Events that occurred */ +} DBusPollFD; + +/** There is data to read */ +#define _DBUS_POLLIN 0x0001 +/** There is urgent data to read */ +#define _DBUS_POLLPRI 0x0002 +/** Writing now will not block */ +#define _DBUS_POLLOUT 0x0004 +/** Error condition */ +#define _DBUS_POLLERR 0x0008 +/** Hung up */ +#define _DBUS_POLLHUP 0x0010 +/** Invalid request: fd not open */ +#define _DBUS_POLLNVAL 0x0020 +#endif + +DBUS_PRIVATE_EXPORT +int _dbus_poll (DBusPollFD *fds, + int n_fds, + int timeout_milliseconds); + +DBUS_PRIVATE_EXPORT +void _dbus_sleep_milliseconds (int milliseconds); + +DBUS_PRIVATE_EXPORT +void _dbus_get_monotonic_time (dbus_int64_t *tv_sec, + long *tv_usec); + +DBUS_PRIVATE_EXPORT +void _dbus_get_real_time (dbus_int64_t *tv_sec, + long *tv_usec); + +/** + * directory interface + */ +DBUS_PRIVATE_EXPORT +dbus_bool_t _dbus_create_directory (const DBusString *filename, + DBusError *error); +DBUS_PRIVATE_EXPORT +dbus_bool_t _dbus_ensure_directory (const DBusString *filename, + DBusError *error); +DBUS_PRIVATE_EXPORT +dbus_bool_t _dbus_delete_directory (const DBusString *filename, + DBusError *error); + +DBUS_PRIVATE_EXPORT +dbus_bool_t _dbus_concat_dir_and_file (DBusString *dir, + const DBusString *next_component); +dbus_bool_t _dbus_string_get_dirname (const DBusString *filename, + DBusString *dirname); +DBUS_PRIVATE_EXPORT +dbus_bool_t _dbus_path_is_absolute (const DBusString *filename); + +dbus_bool_t _dbus_get_standard_session_servicedirs (DBusList **dirs); +dbus_bool_t _dbus_get_standard_system_servicedirs (DBusList **dirs); +dbus_bool_t _dbus_set_up_transient_session_servicedirs (DBusList **dirs, + DBusError *error); + +dbus_bool_t _dbus_get_system_config_file (DBusString *str); +dbus_bool_t _dbus_get_session_config_file (DBusString *str); + +/** Opaque type for reading a directory listing */ +typedef struct DBusDirIter DBusDirIter; + +DBusDirIter* _dbus_directory_open (const DBusString *filename, + DBusError *error); +dbus_bool_t _dbus_directory_get_next_file (DBusDirIter *iter, + DBusString *filename, + DBusError *error); +void _dbus_directory_close (DBusDirIter *iter); + +dbus_bool_t _dbus_check_dir_is_private_to_user (DBusString *dir, + DBusError *error); + +DBUS_PRIVATE_EXPORT +const char* _dbus_get_tmpdir (void); + +/** + * Random numbers + */ +_DBUS_WARN_UNUSED_RESULT +dbus_bool_t _dbus_generate_random_bytes_buffer (char *buffer, + int n_bytes, + DBusError *error); +dbus_bool_t _dbus_generate_random_bytes (DBusString *str, + int n_bytes, + DBusError *error); +DBUS_PRIVATE_EXPORT +dbus_bool_t _dbus_generate_random_ascii (DBusString *str, + int n_bytes, + DBusError *error); + +DBUS_PRIVATE_EXPORT +const char* _dbus_error_from_errno (int error_number); +DBUS_PRIVATE_EXPORT +const char* _dbus_error_from_system_errno (void); + +int _dbus_get_low_level_socket_errno (void); + +int _dbus_save_socket_errno (void); +void _dbus_restore_socket_errno (int saved_errno); +void _dbus_set_errno_to_zero (void); +dbus_bool_t _dbus_get_is_errno_eagain_or_ewouldblock (int e); +dbus_bool_t _dbus_get_is_errno_enomem (int e); +dbus_bool_t _dbus_get_is_errno_eintr (int e); +dbus_bool_t _dbus_get_is_errno_epipe (int e); +dbus_bool_t _dbus_get_is_errno_etoomanyrefs (int e); +DBUS_PRIVATE_EXPORT +const char* _dbus_strerror_from_errno (void); + +void _dbus_disable_sigpipe (void); + +DBUS_PRIVATE_EXPORT +void _dbus_exit (int code) _DBUS_GNUC_NORETURN; + +DBUS_PRIVATE_EXPORT +int _dbus_printf_string_upper_bound (const char *format, + va_list args) _DBUS_GNUC_PRINTF (1, 0); + +#ifdef DBUS_ENABLE_VERBOSE_MODE +DBUS_PRIVATE_EXPORT +void _dbus_print_thread (void); +#endif + +/** + * Portable struct with stat() results + */ +typedef struct +{ + unsigned long mode; /**< File mode */ + unsigned long nlink; /**< Number of hard links */ + dbus_uid_t uid; /**< User owning file */ + dbus_gid_t gid; /**< Group owning file */ + unsigned long size; /**< Size of file */ + unsigned long atime; /**< Access time */ + unsigned long mtime; /**< Modify time */ + unsigned long ctime; /**< Creation time */ +} DBusStat; + +dbus_bool_t _dbus_stat (const DBusString *filename, + DBusStat *statbuf, + DBusError *error); + +DBusSocket _dbus_connect_unix_socket (const char *path, + dbus_bool_t abstract, + DBusError *error); +DBusSocket _dbus_listen_unix_socket (const char *path, + dbus_bool_t abstract, + DBusError *error); + +DBusSocket _dbus_connect_exec (const char *path, + char *const argv[], + DBusError *error); + +DBUS_PRIVATE_EXPORT +dbus_bool_t _dbus_socketpair (DBusSocket *fd1, + DBusSocket *fd2, + dbus_bool_t blocking, + DBusError *error); + +DBUS_PRIVATE_EXPORT +void _dbus_print_backtrace (void); + +dbus_bool_t _dbus_become_daemon (const DBusString *pidfile, + DBusPipe *print_pid_pipe, + DBusError *error, + dbus_bool_t keep_umask); + +dbus_bool_t _dbus_verify_daemon_user (const char *user); +dbus_bool_t _dbus_change_to_daemon_user (const char *user, + DBusError *error); + +dbus_bool_t _dbus_write_pid_to_file_and_pipe (const DBusString *pidfile, + DBusPipe *print_pid_pipe, + dbus_pid_t pid_to_write, + DBusError *error); + +dbus_bool_t _dbus_command_for_pid (unsigned long pid, + DBusString *str, + int max_len, + DBusError *error); + +typedef enum { + DBUS_LOG_FLAGS_STDERR = (1 << 0), + DBUS_LOG_FLAGS_SYSTEM_LOG = (1 << 1) +} DBusLogFlags; + +DBUS_PRIVATE_EXPORT +void _dbus_init_system_log (const char *tag, + DBusLogFlags flags); + +typedef enum { + DBUS_SYSTEM_LOG_INFO, + DBUS_SYSTEM_LOG_WARNING, + DBUS_SYSTEM_LOG_SECURITY, + DBUS_SYSTEM_LOG_ERROR +} DBusSystemLogSeverity; + +DBUS_PRIVATE_EXPORT +void _dbus_log (DBusSystemLogSeverity severity, + const char *msg, + ...) _DBUS_GNUC_PRINTF (2, 3); +DBUS_PRIVATE_EXPORT +void _dbus_logv (DBusSystemLogSeverity severity, + const char *msg, + va_list args) _DBUS_GNUC_PRINTF (2, 0); + +/** On x86 there is an 80-bit FPU, and if you do "a == b" it may have a + * or b in an 80-bit register, thus failing to compare the two 64-bit + * doubles for bitwise equality. So this macro compares the two doubles + * bitwise. + */ +#define _DBUS_DOUBLES_BITWISE_EQUAL(a, b) (memcmp (&(a), &(b), sizeof (double)) == 0) + +dbus_bool_t _dbus_get_autolaunch_address (const char *scope, + DBusString *address, + DBusError *error); + +DBUS_PRIVATE_EXPORT +dbus_bool_t _dbus_lookup_session_address (dbus_bool_t *supported, + DBusString *address, + DBusError *error); + +/** Type representing a universally unique ID + * @todo rename to UUID instead of GUID + */ +typedef union DBusGUID DBusGUID; + +DBUS_PRIVATE_EXPORT +dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id, + dbus_bool_t create_if_not_found, + DBusError *error); + +/** + * Initialize threads as in dbus_threads_init_default(), appropriately + * for the platform. + * @returns #FALSE if no memory + */ +dbus_bool_t _dbus_threads_init_platform_specific (void); + +/** + * Lock a static mutex used to protect _dbus_threads_init_platform_specific(). + */ +void _dbus_threads_lock_platform_specific (void); + +/** + * Undo _dbus_threads_lock_platform_specific(). + */ +void _dbus_threads_unlock_platform_specific (void); + +DBUS_PRIVATE_EXPORT +dbus_bool_t _dbus_split_paths_and_append (DBusString *dirs, + const char *suffix, + DBusList **dir_list); + +unsigned long _dbus_pid_for_log (void); + +/* FIXME move back to dbus-sysdeps-unix.h probably - + * the PID file handling just needs a little more abstraction + * in the bus daemon first. + */ +DBUS_PRIVATE_EXPORT +dbus_pid_t _dbus_getpid (void); + +DBUS_PRIVATE_EXPORT +dbus_uid_t _dbus_getuid (void); + +DBUS_PRIVATE_EXPORT +void _dbus_flush_caches (void); + +dbus_bool_t _dbus_replace_install_prefix (DBusString *path); + +/* Do not set this too high: it is a denial-of-service risk. + * See <https://bugs.freedesktop.org/show_bug.cgi?id=82820> + * + * (This needs to be in the non-Unix-specific header so that + * the config-parser can use it.) + */ +#define DBUS_DEFAULT_MESSAGE_UNIX_FDS 16 + +typedef struct DBusRLimit DBusRLimit; + +DBusRLimit *_dbus_rlimit_save_fd_limit (DBusError *error); +dbus_bool_t _dbus_rlimit_raise_fd_limit (DBusError *error); +dbus_bool_t _dbus_rlimit_restore_fd_limit (DBusRLimit *saved, + DBusError *error); +void _dbus_rlimit_free (DBusRLimit *lim); + +void _dbus_daemon_report_ready (void); +void _dbus_daemon_report_reloading (void); +void _dbus_daemon_report_reloaded (void); +void _dbus_daemon_report_stopping (void); + +dbus_bool_t _dbus_inet_sockaddr_to_string (const void *sockaddr_pointer, + size_t len, + char *string, + size_t string_len, + const char **family_name, + dbus_uint16_t *port, + DBusError *error); +void _dbus_set_error_with_inet_sockaddr (DBusError *error, + const void *sockaddr_pointer, + size_t len, + const char *description, + int saved_errno); +void _dbus_combine_tcp_errors (DBusList **sources, + const char *summary, + const char *host, + const char *port, + DBusError *dest); + +/** + * @def _DBUS_MAX_SUN_PATH_LENGTH + * + * Maximum length of the path to a UNIX domain socket, + * sockaddr_un::sun_path member. POSIX requires that all systems + * support at least 100 bytes here, including the nul termination. + * We use 99 for the max value to allow for the nul. + * + * We could probably also do sizeof (addr.sun_path) + * but this way we are the same on all platforms + * which is probably a good idea. + */ +#define _DBUS_MAX_SUN_PATH_LENGTH 99 + +/** @} */ + +DBUS_END_DECLS + + +#ifdef DBUS_WIN +#include "dbus-sysdeps-win.h" +#endif + +#endif /* DBUS_SYSDEPS_H */ |