const char *cgi_get(const char *name);
void cgi_set(const char *name, const char *value);
char *cgi_sgmlquote(const char *src);
-void cgi_attr(struct sink *output, const char *name, const char *value);
-void cgi_opentag(struct sink *output, const char *name, ...);
-void cgi_closetag(struct sink *output, const char *name);
char *cgi_makeurl(const char *url, ...);
char *cgi_thisurl(const char *url);
void cgi_clear(void);