Improve some GnuTL error messages

* src/gnutls.c (gnutls_symmetric_aead, gnutls_symmetric):
* src/fns.c (Fsecure_hash_algorithms): Fix error messages.

2 files changed, 14 insertions, 6 deletions

diff --git a/src/fns.c b/src/fns.c
index fb1296bc6f0..d849618f2b7 100644
--- a/src/fns.c
+++ b/src/fns.c
@@ -4931,7 +4931,7 @@ extract_data_from_object (Lisp_Object spec,
       /* Format: (iv-auto REQUIRED-LENGTH).  */
 
       if (! NATNUMP (start))
-        error ("Without a length, iv-auto can't be used. See manual.");
+        error ("Without a length, `iv-auto' can't be used; see ELisp manual");
       else
         {
           EMACS_INT start_hold = XFASTINT (start);
@@ -4942,7 +4942,7 @@ extract_data_from_object (Lisp_Object spec,
           *end_byte = start_hold;
         }
 #else
-      error ("GnuTLS integration is not available, so iv-auto can't be used.");
+      error ("GnuTLS is not available, so `iv-auto' can't be used");
 #endif
     }
 
diff --git a/src/gnutls.c b/src/gnutls.c
index 7dff0a4cddc..5e14a3af333 100644
--- a/src/gnutls.c
+++ b/src/gnutls.c
@@ -1950,8 +1950,12 @@ gnutls_symmetric_aead (bool encrypting, gnutls_cipher_algorithm_t gca,
       memset (storage, 0, storage_length);
       SAFE_FREE ();
       gnutls_aead_cipher_deinit (acipher);
-      error ("GnuTLS AEAD cipher %s %sion failed: %s",
-             gnutls_cipher_get_name (gca), desc, emacs_gnutls_strerror (ret));
+      if (encrypting)
+        error ("GnuTLS AEAD cipher %s encryption failed: %s",
+               gnutls_cipher_get_name (gca), emacs_gnutls_strerror (ret));
+      else
+        error ("GnuTLS AEAD cipher %s decryption failed: %s",
+               gnutls_cipher_get_name (gca), emacs_gnutls_strerror (ret));
     }
 
   gnutls_aead_cipher_deinit (acipher);
@@ -2096,8 +2100,12 @@ gnutls_symmetric (bool encrypting, Lisp_Object cipher,
   if (ret < GNUTLS_E_SUCCESS)
     {
       gnutls_cipher_deinit (hcipher);
-      error ("GnuTLS cipher %s %sion failed: %s",
-             gnutls_cipher_get_name (gca), desc, emacs_gnutls_strerror (ret));
+      if (encrypting)
+        error ("GnuTLS cipher %s encryption failed: %s",
+               gnutls_cipher_get_name (gca), emacs_gnutls_strerror (ret));
+      else
+        error ("GnuTLS cipher %s decryption failed: %s",
+               gnutls_cipher_get_name (gca), emacs_gnutls_strerror (ret));
     }
 
   gnutls_cipher_deinit (hcipher);