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diff --git a/src/rtapelib.c b/src/rtapelib.c
index 34f8662..cd00fd5 100644
--- a/src/rtapelib.c
+++ b/src/rtapelib.c
@@ -1,5 +1,7 @@
 /* Functions for communicating with a remote tape drive.
-   Copyright 1988, 92, 94, 96, 97, 99, 2000 Free Software Foundation, Inc.
+
+   Copyright 1988, 1992, 1994, 1996, 1997, 1999, 2000, 2001 Free Software
+   Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -31,8 +33,9 @@
    code, courtesy of Dan Kegel.  */
 
 #include "system.h"
-
+#include "common.h"
 #include <safe-read.h>
+#include <full-write.h>
 
 /* Try hard to get EOPNOTSUPP defined.  486/ISC has it in net/errno.h,
    3B2/SVR3 has it in sys/inet.h.  Otherwise, like on MSDOS, use EINVAL.  */
@@ -57,8 +60,6 @@
 
 #include "rmt.h"
 
-char *base_name PARAMS ((char const *));
-
 /* Exit status if exec errors.  */
 #define EXIT_ON_EXEC_ERROR 128
 
@@ -250,8 +251,6 @@ get_status_off (int handle)
 
 #if WITH_REXEC
 
-int rexec ();
-
 /* Execute /etc/rmt as user USER on remote system HOST using rexec.
    Return a file descriptor of a bidirectional socket for stdin and
    stdout.  If USER is zero, use the current username.
@@ -483,10 +482,7 @@ rmt_open__ (const char *path, int open_mode, int bias, const char *remote_shell)
 	close (from_remote[remote_pipe_number][PREAD]);
 	close (from_remote[remote_pipe_number][PWRITE]);
 
-#if !MSDOS
-	setuid (getuid ());
-	setgid (getgid ());
-#endif
+	sys_reset_uid_gid ();
 
 	if (remote_user)
 	  execl (remote_shell, remote_shell_basename, remote_host,
@@ -609,6 +605,7 @@ rmt_lseek__ (int handle, off_t offset, int whence)
   uintmax_t u = offset < 0 ? - (uintmax_t) offset : (uintmax_t) offset;
   char *p = operand_buffer + sizeof operand_buffer;
 
+  *--p = 0;
   do
     *--p = '0' + (int) (u % 10);
   while ((u /= 10) != 0);
@@ -652,6 +649,7 @@ rmt_ioctl__ (int handle, int operation, char *argument)
 		       : (uintmax_t) ((struct mtop *) argument)->mt_count);
 	char *p = operand_buffer + sizeof operand_buffer;
 	
+        *--p = 0;
 	do
 	  *--p = '0' + (int) (u % 10);
 	while ((u /= 10) != 0);