On Wed, Apr 04, 2012 at 03:12:26AM +0200, Dr. Stephen Henson wrote:
> On Tue, Apr 03, 2012, Naveen Nathan wrote:
> 
> > > > > That's because the ASN1_OBJECT is a little different. Some standard 
> > > > > OIDs are
> > > > > set to a fixed value to avoid the need to keep allocating them. What 
> > > > > that
> > > > > means in practice is you do something like:
> > > > > 
> > > > > foo->usage = OBJ_something(somearg);
> > > > > 
> > > > > This wont result in a memory leak because the OID isn't dynamically 
> > > > > allocated.
> > > > 
> > > > I would also be using custom OIDs. Would I need to first register the 
> > > > OIDs
> > > > using OBJ_create? Normally we don't use any name identifier. Or is there
> > > > a way to duplicate an ASN1_OBJECT?
> > > > 
> > > > Otherwise I can probably write an auxillary function to handle this in
> > > > a similar vein to OBJ_dup(ASN1_OBJECT *).
> > > > 
> > > 
> > > You can use OBJ_txt2obj to created an ASN1_OBJECT from the numerical form 
> > > if
> > > you wish. OBJ_dup will duplicate an ASN1_OBJECT just fine.
> > 
> > Thanks, but perhaps I am a little unclear about the issue I'm having.
> > 
> > I have written the following code to demonstrate the issue I'm having,
> > specifically with ASN1_OBJECT in a custom ASN1 struct containing only
> > one ASN1_OBJECT type.
> > 
> > I just have a basic ASN1 sequence containing an ASN1_OBJECT. I want
> > to assign the custom OID "1.2.3.4" to obj. When I try to do this with
> > OBJ_txt2obj(), this becomes the cause for a segfault on i2d_basic().
> > 
> > I'm unsure why this segfault occurs. My guess is obj is already
> > allocated by simple_asn_new(); therefore reassigning it with
> > a newly created object from OBJ_txt2obj() causes a segfault.
> > But I'm not too familiar with the internals of the i2d_* routine
> > to see how this is possible.
> > 
> 
> What OS are you running this on?

This is on Mac OSX 10.7.2 running OpenSSL 0.9.8r.

I also have the same issue on FreeBSD 8.2 running OpenSSL 0.9.8q.
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