Manpages - sd_bus_message_verify_type.3

sd_bus_message_verify_type - Check if the message has specified type at the current location

  #include <systemd/sd-bus.h>

int sd_bus_message_verify_type(sd_bus_message **/m/, char type, const char* contents);*

sd_bus_message_verify_type() checks if the complete type at the current location in the message m matches the specified type and contents. If non-zero, parameter type must be one of the types specified in *sd_bus_message_append*(1). If non-null, parameter contents must be a valid sequence of complete types. If both type and contents are specified type must be a container type.

If type is specified, the type in the message must match. If contents is specified, the type in the message must be a container type with this signature.

On success, this call returns true if the type matches and zero if not (the message m contains different data or the end of the message has been reached). On failure, it returns a negative errno-style error code.

These APIs are implemented as a shared library, which can be compiled and linked to with the libsystemd *pkg-config*(1) file.

*systemd*(1), *sd-bus*(3), *sd_bus_message_append*(3)