LDAP_OPT_REFHOPLIMIT

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Use the LDAP_OPT_REFHOPLIMIT setting to specify the maximum number of hops that the client library takes when it chases referrals.

The default is 10. For example: 
hoplimit=7;    
ldap_set_option( ld, LDAP_OPT_REFHOPLIMIT, &hoplimit);    
ldap_get_option( ld, LDAP_OPT_REFHOPLIMIT, &hoplimit);