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6d8edab59b9e9cc2aeb0b2d864f9cb4280b181a2
script calling session:getVariable() with a null variable name will cause FreeSWITCH to segfault. This change checks whether varname parameter to switch_channel_get_variable_dup is non-NULL.
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Description
FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a versatile software implementation that runs on any commodity hardware. From a Raspberry PI to a multi-core server, FreeSWITCH can unlock the telecommunications potential of any device.
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