glVertexAttribPointer or.. ?

[Spongebob]

Hello all
The last days I've been asked to make a project in OpenGL. I haven't touch OpenGL since 2005. I was looking an OpenGL Engine of mine from the past and I realized that I was passing some vertex data to the VertexBufferObject using glTexCoordPointer() (tangents and bitangents) instead of glVertexAttribPointer(). But I can't remember why! :P
So.. now I want to use VBO for a mesh with this data structure:

struct VertexTBN
{
   vector3 pos;
   vector2 texCoord;
   vector3 normal;
   vector3 tangent;
   vector3 bitangent;
};

What is better to use for Tagnents and Bitangents? glTexCoordPointer()? or glVertexAttribPointer()?

I guess for pos, texCoord and normal is best to use glVertexPointer(), glTexCoordPointer(), glNormalPointer() respectively. right?

If I try to glDrawElements() that VBO without a glsl shader will it work?(skiping the tangent and bitangent ofc). or it will fail?

Thanks for your time!

[Korval]

You can only use generic attributes (defined through glVertexAttribPointer) if you're using glslang (or ARB_vertex_program). So if you have need of the fixed-function pipeline, you'll need to use glTexCoordPointer.