message_peek_field_signature 4823 src/libsystemd/sd-bus/bus-message.c                         r = message_peek_field_signature(m, ri, 0, NULL);
message_peek_field_signature 4881 src/libsystemd/sd-bus/bus-message.c                         r = message_peek_field_signature(m, ri, 0, &s);
message_peek_field_signature 5002 src/libsystemd/sd-bus/bus-message.c                         r = message_peek_field_signature(m, &ri, 0, &signature);
message_peek_field_signature 5097 src/libsystemd/sd-bus/bus-message.c                         r = message_peek_field_signature(m, &ri, item_size, &s);