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    Subject[PATCH 11/15] Tools: hv: Gather DNS information
    Date
    Now gather DNS information. This information cannot be gathered in
    a distro independent fashion. Invoke an external script (that can be
    distro dependent) to gather the DNS information.

    Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
    Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
    ---
    tools/hv/hv_kvp_daemon.c | 27 +++++++++++++++++++++++++++
    1 files changed, 27 insertions(+), 0 deletions(-)

    diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c
    index b7a2df0..a81ce67 100644
    --- a/tools/hv/hv_kvp_daemon.c
    +++ b/tools/hv/hv_kvp_daemon.c
    @@ -553,6 +553,33 @@ static void kvp_get_ipconfig_info(char *if_name,
    kvp_process_ipconfig_file(cmd, (char *)buffer->gate_way,
    (MAX_GATEWAY_SIZE * 2), INET6_ADDRSTRLEN, 1);

    +
    + /*
    + * Gather the DNS state.
    + * Since there is no standard way to get this information
    + * across various distributions of interest; we just invoke
    + * an external script that needs to be ported across distros
    + * of interest.
    + * Input to the script:
    + * 1) Interface name
    + *
    + * Following is the expected format of the information from the script:
    + *
    + * ipaddr1 (nameserver1)
    + * ipaddr2 (nameserver2)
    + * .
    + * .
    + */
    +
    + memset(cmd, 0, 512);
    + strcat(cmd, "/sbin/hv_get_dns_info ");
    + strcat(cmd, if_name);
    +
    + /*
    + * Execute the command to gather DNS info.
    + */
    + kvp_process_ipconfig_file(cmd, (char *)buffer->dns_addr,
    + (MAX_IP_ADDR_SIZE * 2), INET_ADDRSTRLEN, 0);
    }


    --
    1.7.4.1


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