Benjamin Kaufmann a5e94f07bf Fix issue #135: Segfault in Message::peekType() ...

* Add missing nullptr check in Message::peekType().

* According to its specification, sd_bus_message_peek_type() sets a
  given contents parameter to NULL if the next element in a message is
  not a container. Since assigning a nullptr to a std::string has
  undefined behaviour (typically resulting in an invalid memory access),
  Message::peekType() must not assign contentsSig unconditionally.

2021-06-15 15:26:10 +02:00

6.5 KiB

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