-int pidcheck (int);
-CT parse_mime (char *);
-int add_header (CT, char *, char *);
-int get_ctinfo (unsigned char *, CT, int);
-int params_external (CT, int);
-int open7Bit (CT, char **);
-void close_encoding (CT);
-
-extern int checksw; /* Add Content-MD5 field */
+int pidcheck(int);
+CT parse_mime(char *);
+int add_header(CT, char *, char *);
+int get_ctinfo(unsigned char *, CT, int);
+int open7Bit(CT, char **);
+void close_encoding(CT);
+char *extract_name_value(char *, char *);