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kDNSServiceProperty_DaemonVersion

The daemon version property.

Declaration

var kDNSServiceProperty_DaemonVersion: String { get }

Discussion

When requesting kDNSServiceProperty_DaemonVersion, the result pointer must point to a 32-bit unsigned integer, and the size parameter must be set to sizeof(uint32_t).

On return, the 32-bit unsigned integer contains the version number, formatted as follows:

Major part of the build number * 10000 +

minor part of the build number * 100

For example, OS X 10.4.9 has mDNSResponder-108.4, which would be represented as version 1080400. This allows applications to do simple greater-than and less-than comparisons: e.g. an application that requires at least mDNSResponder-108.4 can check:

 
   if (version >= 1080400) ...

Example usage:

 
 
 uint32_t version;
 uint32_t size = sizeof(version);
 DNSServiceErrorType err = DNSServiceGetProperty(kDNSServiceProperty_DaemonVersion, &version, &size);
 if (!err) printf("Bonjour version is %d.%d\n", version / 10000, version / 100 % 100);

See Also

Constants