Using complex variables and the method of conformal mappings, an analy
tical expression is produced for the possible configurations of consta
nt-current, force-free or magnetostatic magnetic fields in the neighbo
urhood of a linear current sheet. The configurations obtained include
the well-known potential solutions of Green (1965) and Syrovatskii (19
71) as special cases. New potential and force-free solutions possess a
symmetry along the current sheet and a closing over of the field lines
for the force-free case.