How does one check out code from the OpenLDAP master branch?
I don't know the telnet code but its manual about -b option refers to 'an'
aliased address or to 'the' address, not multiple IPV4 or IPv6 addresses.
Uses bind(2) on the local socket to bind it to an aliased address (see ifconfig(8) and the
''alias'' specifier) or to the address of another interface than the one
naturally chosen by connect(2). This can be useful when connecting to services which use
IP addresses for authentication and reconfiguration of the server is undesirable (or
From: Quanah Gibson-Mount [mailto:email@example.com]
Sent: Tuesday, May 23, 2017 11:32 AM
To: Daniel Le <daniel.le(a)exfo.com>; 'Howard Chu' <hyc(a)symas.com>;
Subject: RE: ITS#8654 - Option for LDAP client to bind to a local address
--On Tuesday, May 23, 2017 4:18 PM +0000 Daniel Le <daniel.le(a)exfo.com>
Since the ITS#4707 patch was not merged into 2.4 and is subject to
additional modification to handle a list of local addresses, perhaps
it makes sense to leverage from what was done in 2.3 and write a new
patch for 2.4 (i.e. no merge)?
All work should be done against OpenLDAP master rather than a release branch
Regarding multiple local IP addresses, I can think of a scenario
the desired local network interface has an IPv4 address and an IPv6
address, then the one which has the same address family as the
server's is chosen at the time of socket binding, but how to match a
client IP address with a server host address when there are multiple
IPv6 local addresses?
Curious, does telnet -b handle this currently?
From: Daniel Le
Sent: Monday, May 22, 2017 5:17 PM
To: 'Howard Chu' <hyc(a)symas.com>; Quanah Gibson-Mount
<openldap-devel(a)openldap.org> Subject: RE:
ITS#8654 - Option for LDAP client to bind to a local address
From what I can see, ldap_init_fd() only allows the setting of
UDP/TCP/IPC protocol type and server's URI.
Will the ITS#4707 patch
be merged into 2.4?
And since this patch only handles one IP address, further change will
be necessary to support a list of IP addresses.
From: Howard Chu [mailto:firstname.lastname@example.org]
Sent: Monday, May 22, 2017 2:49 PM
To: Quanah Gibson-Mount <quanah(a)symas.com>; Daniel Le
<openldap-devel(a)openldap.org> Subject: Re: ITS#8654 - Option for LDAP
client to bind to a local address
Quanah Gibson-Mount wrote:
> --On Monday, May 22, 2017 7:28 PM +0000 Daniel Le
>> I tumbled into the following ITS#4707 thread:
>> Patch: option to bind client socket to an address
>> Wasn't this patch integrated into OpenLDAP 2.3.X? I couldn't see it
>> in the 2.4.44 code base.
> The notes say it was added for 2.4, but that apparently is incorrect.
> "new API added in HEAD/RE24"
The notes say *a* new API was added to 2.4, not necessarily *this* one.
And that is true, we added ldap_init_fd() which lets the caller setup
their socket any way they please.
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/
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