[EXTERNAL] Re: Replacement for BIO_get_port(), BIO_get_host_ip()

Matt Caswell matt at openssl.org
Thu Oct 7 08:26:05 UTC 2021

The functions I suggested support both IPv4 and IPv6. For example in the 
BIO_lookup() call the 4th parameter would be AF_INET for IPv4 and 
AF_INET6 for IPv6.


On 07/10/2021 08:18, Shivakumar Poojari wrote:
> Hi Matt,
> The steps suggested are similarly to the deprecated function so simply  
> I used the same code in static function, But i need support for IPV6 as 
> well in the same function
> The function needs to have compatibility to support for both ipv6 and 
> ipv4, do we have any new function to support both
> thanks,
> Shivakumar.
> ------------------------------------------------------------------------
> *From:* Matt Caswell <matt at openssl.org>
> *Sent:* Monday, September 27, 2021 3:05 PM
> *To:* Shivakumar Poojari <Shivakumar.Poojari at rbbn.com>; 
> openssl-users at openssl.org <openssl-users at openssl.org>
> *Cc:* Paramashivaiah, Sunil <Sunil.Paramashivaiah at rbbn.com>
> *Subject:* [EXTERNAL] Re: Replacement for BIO_get_port(), BIO_get_host_ip()
> On 24/09/2021 07:05, Shivakumar Poojari wrote:
>> Hi
>> BIO_get_port(), BIO_get_host_ip(),  were deprecated in OpenSSL 1.1.0. 
>> Trying for replacement for OpenSSl 3.0
>> Gone through the below man page, but not found alternative function.
>> https://clicktime.symantec.com/3Xv8ZiB6xAtjRGsCNHevANW6H2?u=https%3A%2F%2Fwww.openssl.org%2Fdocs%2Fmanmaster%2Fman3%2FBIO_connect.html 
> <https://clicktime.symantec.com/3Xv8ZiB6xAtjRGsCNHevANW6H2?u=https%3A%2F%2Fwww.openssl.org%2Fdocs%2Fmanmaster%2Fman3%2FBIO_connect.html> 
>> <https://clicktime.symantec.com/3Xv8ZiB6xAtjRGsCNHevANW6H2?u=https%3A%2F%2Fwww.openssl.org%2Fdocs%2Fmanmaster%2Fman3%2FBIO_connect.html 
> <https://clicktime.symantec.com/3Xv8ZiB6xAtjRGsCNHevANW6H2?u=https%3A%2F%2Fwww.openssl.org%2Fdocs%2Fmanmaster%2Fman3%2FBIO_connect.html>>
>> please suggest,
> These functions are deprecated because they only support IPv4.
> Instead you can use BIO_lookup() (or possibly BIO_lookup_ex()) to lookup
> the given host/service (first and second parameters to BIO_lookup()
> respectively). Equivalent 3rd/4th/5th parameters to BIO_lookup() might
> This will return you an initialised BIO_ADDRINFO() object (which you
> will have to later free using BIO_ADDRINFO_free()).
>   From the BIO_ADDRINFO object you can get a pointer to an underlying
> BIO_ADDR using BIO_ADDRINFO_address(addrinfo). Finally you can use
> BIO_ADDR_rawaddress() to get address info, or BIO_ADDR_rawport() to get
> port info:
> See:
> https://clicktime.symantec.com/3EBngctzbwbGZ7EtRw3Ks6N6H2?u=https%3A%2F%2Fwww.openssl.org%2Fdocs%2Fman3.0%2Fman3%2FBIO_lookup.html 
> <https://clicktime.symantec.com/3EBngctzbwbGZ7EtRw3Ks6N6H2?u=https%3A%2F%2Fwww.openssl.org%2Fdocs%2Fman3.0%2Fman3%2FBIO_lookup.html>
> https://clicktime.symantec.com/33SMrAMvMeCpangnxBCzSv96H2?u=https%3A%2F%2Fwww.openssl.org%2Fdocs%2Fman3.0%2Fman3%2FBIO_ADDR_rawaddress.html 
> <https://clicktime.symantec.com/33SMrAMvMeCpangnxBCzSv96H2?u=https%3A%2F%2Fwww.openssl.org%2Fdocs%2Fman3.0%2Fman3%2FBIO_ADDR_rawaddress.html>
> Matt
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