char * myqtt_support_getenv ( const char *  env_name)

Allows to get the string variable found at the provided env_name.

The function tries to get the content from the environment variable, and return the string content that it is representing.

env_nameThe environment variable name to get the value from.
The variable value or NULL if it fails. The caller must dealloc the string returned when no longer needed by calling to axl_free.

Referenced by myqtt_log_filter_is_enabled().