diff options
Diffstat (limited to 'dbus/dbus-sysdeps.c')
| -rw-r--r-- | dbus/dbus-sysdeps.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/dbus/dbus-sysdeps.c b/dbus/dbus-sysdeps.c index e1b786f0..2bdd8171 100644 --- a/dbus/dbus-sysdeps.c +++ b/dbus/dbus-sysdeps.c @@ -3131,11 +3131,13 @@ _dbus_print_backtrace (void) * Does the chdir, fork, setsid, etc. to become a daemon process. * * @param pidfile #NULL, or pidfile to create + * @param print_pid_fd file descriptor to print pid to, or -1 for none * @param error return location for errors * @returns #FALSE on failure */ dbus_bool_t _dbus_become_daemon (const DBusString *pidfile, + int print_pid_fd, DBusError *error) { const char *s; @@ -3201,6 +3203,42 @@ _dbus_become_daemon (const DBusString *pidfile, return FALSE; } } + + /* Write PID if requested */ + if (print_pid_fd >= 0) + { + DBusString pid; + int bytes; + + if (!_dbus_string_init (&pid)) + { + _DBUS_SET_OOM (error); + kill (child_pid, SIGTERM); + return FALSE; + } + + if (!_dbus_string_append_int (&pid, _dbus_getpid ()) || + !_dbus_string_append (&pid, "\n")) + { + _dbus_string_free (&pid); + _DBUS_SET_OOM (error); + kill (child_pid, SIGTERM); + return FALSE; + } + + bytes = _dbus_string_get_length (&pid); + if (_dbus_write (print_pid_fd, &pid, 0, bytes) != bytes) + { + dbus_set_error (error, DBUS_ERROR_FAILED, + "Printing message bus PID: %s\n", + _dbus_strerror (errno)); + _dbus_string_free (&pid); + kill (child_pid, SIGTERM); + return FALSE; + } + + _dbus_string_free (&pid); + } _dbus_verbose ("parent exiting\n"); _exit (0); break; |