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-rw-r--r--dbus/dbus-spawn.c25
1 files changed, 14 insertions, 11 deletions
diff --git a/dbus/dbus-spawn.c b/dbus/dbus-spawn.c
index 125aea7c..810536fd 100644
--- a/dbus/dbus-spawn.c
+++ b/dbus/dbus-spawn.c
@@ -417,7 +417,7 @@ read_data (DBusBabysitter *sitter,
{
sitter->have_child_status = TRUE;
sitter->status = arg;
- sitter->errnum = WEXITSTATUS (sitter->status);
+ sitter->errnum = 0;
_dbus_verbose ("recorded child status exited = %d signaled = %d exitstatus = %d termsig = %d\n",
WIFEXITED (sitter->status), WIFSIGNALED (sitter->status),
WEXITSTATUS (sitter->status), WTERMSIG (sitter->status));
@@ -624,26 +624,29 @@ _dbus_babysitter_get_child_exited (DBusBabysitter *sitter)
}
/**
- * Gets the exit status of the child. We do this so implimentation specific
- * detail is not cluttering up dbus, for example the system laucher code.
+ * Gets the exit status of the child. We do this so implementation specific
+ * detail is not cluttering up dbus, for example the system launcher code.
+ * This can only be called if the child has exited, i.e. call
+ * _dbus_babysitter_get_child_exited(). It returns FALSE if the child
+ * did not return a status code, e.g. because the child was signaled
+ * or we failed to ever launch the child in the first place.
*
* @param sitter the babysitter
* @param status the returned status code
* @returns #FALSE on failure
*/
dbus_bool_t
-_dbus_babysitter_get_child_exit_status (DBusBabysitter *sitter, int *status)
+_dbus_babysitter_get_child_exit_status (DBusBabysitter *sitter,
+ int *status)
{
if (!_dbus_babysitter_get_child_exited (sitter))
_dbus_assert_not_reached ("Child has not exited");
+
+ if (!sitter->have_child_status ||
+ !(WIFEXITED (sitter->status)))
+ return FALSE;
- if (sitter->errnum != WEXITSTATUS (sitter->status))
- _dbus_assert_not_reached ("Status is not exit!");
-
- if (!sitter->have_child_status)
- _dbus_assert_not_reached ("Not a child!");
-
- *status = sitter->status;
+ *status = WEXITSTATUS (sitter->status);
return TRUE;
}