krb5_get_host_realm -  Get the Kerberos realm names for a host. 
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.. c:function:: krb5_error_code krb5_get_host_realm(krb5_context context, const char * host, char *** realmsp)

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:param:

	          **[in]** **context** - Library context

	          **[in]** **host** - Host name (or NULL)

	          **[out]** **realmsp** - Null-terminated list of realm names


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:retval:
         -   0   Success
         -   ENOMEM   Insufficient memory


:return:
         -  Kerberos error codes 

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Fill in *realmsp* with a pointer to a null-terminated list of realm names. If there are no known realms for the host, a list containing the referral (empty) realm is returned.



If *host* is NULL, the local host's realms are determined.



Use :c:func:`krb5_free_host_realm()` to release *realmsp* when it is no longer needed.










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