Revised use of const modifiers

3 files changed, 8 insertions, 8 deletions

diff --git a/include/mailutils/mu_auth.h b/include/mailutils/mu_auth.h
index 76163f159..7fa073109 100644
--- a/include/mailutils/mu_auth.h
+++ b/include/mailutils/mu_auth.h
@@ -35,7 +35,7 @@ struct mu_auth_data {
 };
 
 typedef int (*mu_auth_fp) __P((struct mu_auth_data **data,
-                               void *key,
+                               const void *key,
                                void *func_data,
                                void *call_data));
 
@@ -52,7 +52,7 @@ struct mu_auth_module {
 
 extern int mu_auth_runlist __P((list_t flist,
                                 struct mu_auth_data **return_data,
-                                void *key, void *data));
+                                const void *key, void *data));
 extern struct mu_auth_data *
 mu_get_auth_by_name __P ((const char *username));
 
@@ -63,7 +63,7 @@ extern int
 mu_authenticate __P((struct mu_auth_data *auth_data, char *pass));
 
 extern int mu_auth_nosupport __P((struct mu_auth_data **return_data,
-                                  void *key,
+                                  const void *key,
                                   void *func_data,
                                   void *call_data));
 
diff --git a/include/mailutils/mutil.h b/include/mailutils/mutil.h
index b7c073d94..7280e5193 100644
--- a/include/mailutils/mutil.h
+++ b/include/mailutils/mutil.h
@@ -132,8 +132,8 @@ extern int mu_scheme_autodetect_p __P((const char *scheme, const char **path));
 extern int mu_fd_wait __P((int fd, int *pflags, struct timeval *tvp));
 
 extern int mu_decode_filter __P((stream_t *pfilter, stream_t input,
-                                 char *filter_type,
-                                 char *fromcode, char *tocode));
+                                 const char *filter_type,
+                                 const char *fromcode, const char *tocode));
 
 extern enum mu_iconv_fallback_mode mu_default_fallback_mode;
 extern int mu_set_default_fallback __P((const char *str));
diff --git a/include/mailutils/stream.h b/include/mailutils/stream.h
index a0da1c953..dc919753b 100644
--- a/include/mailutils/stream.h
+++ b/include/mailutils/stream.h
@@ -144,7 +144,7 @@ extern int stream_set_flush    __P ((stream_t,
       int (*_flush) __PMT ((stream_t)), void *owner));
 
 extern int stream_set_strerror __P ((stream_t stream,
-      int (*fp) (stream_t, char **), void *owner));
+      int (*fp) (stream_t, const char **), void *owner));
 
 extern int stream_set_wait __P ((stream_t stream,
       int (*wait) (stream_t, int *, struct timeval *), void *owner));
@@ -156,10 +156,10 @@ extern int stream_sequential_readline __P((stream_t stream,
       char *buf, size_t size, size_t *nbytes));
   
 extern int stream_sequential_write __P((stream_t stream,
-                                        char *buf, size_t size));
+                                        const char *buf, size_t size));
 extern int stream_seek __P((stream_t stream, off_t off, int whence));
   
-extern int stream_strerror __P((stream_t stream, char **p));
+extern int stream_strerror __P((stream_t stream, const char **p));
   
 #ifdef __cplusplus
 }