Setting color attribute for a VBO in OpenGL using the fixed function pipeline -

i want use vbo's , fixed function pipeline (i know should using shaders need use ffp...)

i have triangle being drawn, can't color attributes set-up correctly.

here create buffers

const glfloat vertexpositions[] = {10, 10, 0,10, -10, 0, -10, -10, 0};  const glfloat vertexcolours[] = {1,0,0,0,0,1, 0,1,0};  gluint positionsbufferobject; glgenbuffers(1, &positionsbufferobject); glbindbuffer(gl_array_buffer, positionsbufferobject); glbufferdata(gl_array_buffer, 9*sizeof(glfloat), vertexpositions, gl_static_draw); glfinish(); //wait until data transfered glvertexpointer( 3, gl_float, 0, (char *) null ); //attributes in bound buffer   gluint colourbufferobject; glgenbuffers(1, &colourbufferobject); glbindbuffer(gl_array_buffer, colourbufferobject); glbufferdata(gl_array_buffer, 3 * sizeof(glfloat), vertexcolours, gl_static_draw); // set size , data of our vbo , set static_draw   glfinish(); glcolorpointer( 3, gl_float, 0, (char *) null );//attributes in bound buffer 

and draw;

    glenableclientstate(gl_vertex_array);     glenableclientstate(gl_color_array);     gldrawarrays(gl_triangles, 0, 3);   // draw first object 

the triangle gets drawn, colors wrong, first vertex gets correct color (red) remaining 2 black;

i've tried messing around glvertexattribpointer different values of index, suspect won't have impact in ffp. going wrong?

glbufferdata(gl_array_buffer, 3 * sizeof(glfloat), vertexcolours, ... 

should presumably pass 9 * sizeof(glfloat) size parameter.

since did vertexpositions, looks cut-and-paste bug:)