Iterater for env vars
#include <cgi/cgiwrap.h>
NEOERR *cgiwrap_iterenv (int n, char **k, char **v);
n - variable to return. This should start at 0 and increment
until you receive a NULL return value.
cgiwrap_iterenv allows a program to iterate over all the environment variables. This is probably mostly used by the default debug output.
k - a malloc'd copy of the variable name
v - a malloc'd copy of the variable value