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# DDNS (Dynamic DNS) support detection
# Requires nsupdate and nslookup tools
find_program(NSUPDATE_EXECUTABLE
NAMES nsupdate
DOC "The nsupdate tool that enables DDNS")
find_program(NSLOOKUP_EXECUTABLE
NAMES nslookup
DOC "The nslookup tool that resolves DNS names")
mark_as_advanced(NSLOOKUP_EXECUTABLE NSUPDATE_EXECUTABLE)
if(NSLOOKUP_EXECUTABLE AND NSUPDATE_EXECUTABLE)
set(DISABLE_DDNS FALSE CACHE BOOL "Disable DDNS support")
if(NOT DISABLE_DDNS)
message(STATUS "DDNS support enabled")
set(HAVE_DDNS TRUE CACHE INTERNAL "Dynamic DNS support available")
else()
message(STATUS "DDNS support disabled by user")
unset(HAVE_DDNS CACHE)
endif()
else()
if(NSLOOKUP_EXECUTABLE)
message(STATUS "Install nsupdate to enable DDNS support")
elseif(NSUPDATE_EXECUTABLE)
message(STATUS "Install nslookup to enable DDNS support")
else()
message(STATUS "Install nslookup and nsupdate to enable DDNS support")
endif()
endif()
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