diff --git a/modules/src/object/object.h b/modules/src/object/object.h
index cf6ac476a..a7a44c648 100644
--- a/modules/src/object/object.h
+++ b/modules/src/object/object.h
@@ -7,11 +7,14 @@
 #ifndef __OBJECT_INCLUDED__
 #define __OBJECT_INCLUDED__
 
+#include <stdio.h>
+
 struct ar_hdr;
 struct outhead;
 struct outrelo;
 struct outsect;
 struct ranlib;
+struct outname;
 
 int wr_open(const char *f);
 void wr_close(void);
@@ -23,13 +26,17 @@ void wr_putc(int c);
 void wr_relo(const struct outrelo *r, unsigned int c);
 void wr_name(const struct outname *n, unsigned int c);
 void wr_string(const char *s, long c);
-void wr_arhdr(int fd, struct ar_hdr *a);
-void wr_ranlib(int fd, struct ranlib *r, long cnt);
-void wr_int2(int fd, int i);
-void wr_long(int fd, long l);
-void wr_bytes(int fd, const char *buf, long l);
+
+
+void wr_arhdr(FILE* fd, struct ar_hdr *a);
+void wr_ranlib(FILE* fd, struct ranlib *r, long cnt);
+void wr_int2(FILE* fd, int i);
+void wr_long(FILE* fd, long l);
+void wr_bytes(FILE* fd, const char *buf, long l);
+
+
 int rd_open(const char *f);
-int rd_fdopen(int f);
+int rd_fdopen(FILE* fd);
 void rd_close(void);
 void rd_ohead(struct outhead *h);
 void rd_sect(struct outsect *s, unsigned int c);
@@ -39,11 +46,21 @@ void rd_relo(struct outrelo *r, unsigned int c);
 void rd_rew_relos(struct outhead *head);
 void rd_name(struct outname *n, unsigned int c);
 void rd_string(char *s, long c);
-int rd_arhdr(int fd, struct ar_hdr *a);
-void rd_ranlib(int fd, struct ranlib *r, long cnt);
-int rd_int2(int fd);
-long rd_long(int fd);
-void rd_bytes(int fd, char *buf, long l);
-int rd_fd(void);
+
+/** Reads an archive header and returns the filled
+ *  up archive header structure. Returns 0 if failure
+ *  otherwise returns 1.
+ *
+ *  @param[in] fd Opened file descriptor to read from.
+ *  @param[out] a Archive header structure.
+ *
+ */
+int rd_arhdr(FILE* fd, struct ar_hdr *a);
+void rd_ranlib(FILE* fd, struct ranlib *r, long cnt);
+int rd_int2(FILE* fd);
+long rd_long(FILE* fd);
+unsigned int rd_unsigned2(FILE* fd);
+void rd_bytes(FILE* fd, char *buf, long l);
+FILE* rd_fd(void);
 
 #endif /* __OBJECT_INCLUDED__ */