5 files changed, 10 insertions, 10 deletions
diff --git a/fetchmail.h b/fetchmail.h
index 9cc13b46..fb2f085e 100644
--- a/fetchmail.h
+++ b/fetchmail.h
@@ -290,7 +290,7 @@ int doETRN (struct query *);
 struct query *hostalloc(struct query *); 
 int parsecmdline (int, char **, struct query *);
 void optmerge(struct query *, struct query *);
-char *MD5Digest (char *);
+char *MD5Digest (unsigned char *);
 int daemonize(const char *, void (*)(int));
 char *getpassword(char *);
 void escapes(const char *, char *);
diff --git a/md5ify.c b/md5ify.c
index 7cb23b6c..0ca3e6b9 100644
--- a/md5ify.c
+++ b/md5ify.c
@@ -20,7 +20,7 @@
 
 char *
 MD5Digest (s)
-char *s;
+unsigned char *s;
 {
   int i;
   MD5_CTX context;
diff --git a/mx.h b/mx.h
index 0a28f2b0..b32a7ef4 100644
--- a/mx.h
+++ b/mx.h
@@ -2,11 +2,11 @@
 
 struct mxentry
 {
-    char	*name;
-    int		pref;
+    unsigned char	*name;
+    int			pref;
 };
 
-extern struct mxentry * getmxrecords(const char *);
+extern struct mxentry * getmxrecords(const unsigned char *);
 
 /* some versions of FreeBSD should declare this but don't */
 extern int h_errno;
diff --git a/mxget.c b/mxget.c
index 91b2b418..482ea568 100644
--- a/mxget.c
+++ b/mxget.c
@@ -40,7 +40,7 @@
 /* minimum possible size of MX record in packet */
 #define MIN_MX_SIZE	8	/* corresp to "a.com 0" w/ terminating space */
 
-struct mxentry *getmxrecords(const char *name)
+struct mxentry *getmxrecords(const unsigned char *name)
 /* get MX records for given host */
 {
     unsigned char answer[PACKETSZ], *eom, *cp, *bp;
diff --git a/report.c b/report.c
index a1e6c7f1..bcca5f64 100644
--- a/report.c
+++ b/report.c
@@ -124,7 +124,7 @@ error (int status, int errnum, const char *message, ...)
 error (status, errnum, message, va_alist)
      int status;
      int errnum;
-     char *message;
+     const char *message;
      va_dcl
 #endif
 {
@@ -267,7 +267,7 @@ void
 error_build (const char *message, ...)
 #else
 error_build (message, va_alist)
-     char *message;
+     const char *message;
      va_dcl
 #endif
 {
@@ -369,7 +369,7 @@ error_complete (int status, int errnum, const char *message, ...)
 error_complete (status, errnum, message, va_alist)
      int status;
      int errnum;
-     char *message;
+     const char *message;
      va_dcl
 #endif
 {
@@ -487,7 +487,7 @@ error_at_line (status, errnum, file_name, line_number, message, va_alist)
      int errnum;
      const char *file_name;
      unsigned int line_number;
-     char *message;
+     const char *message;
      va_dcl
 #endif
 {