C :: Implementing And Manipulating Polynomial ADT Using Linked List

Implementing and manipulating a Polynomial ADT using a linked list.

So far I have:

poly_ADT.h
Code: typedef struct nodeT{
int coef;
int powr;
struct nodeT *next;
} node;

[Code]...

I need to create a function that creates the polynomial using input first.

poly *poly_create (num,...) ;return a new polynomial with num terms terms are listed in order of lowest ordered-term to highest. i.e., to initialize poly 15x^6 + -9x^4 + 3x^2 call poly_create(3, 3,2, -9,4, 15,6 );

Once I do that I need to implement various functions that can manipulate the polynomial itself but I'm having trouble just with creating the polynomial itself, how to do that using a linked list and nodes?