Assert mutt_decode_attachment() doesn't modify body fields.

Some old smime (and other parts of the code) have out of date comments
asserting mutt_decode_attachment() modifies the body length, offset,
and type fields.

Add a const modifier to the parameter and called functions to assert
this is not the case.

1 files changed, 1 insertions, 1 deletions

diff --git a/crypt.c b/crypt.c
index b86e4dfe..a9f7089d 100644
--- a/crypt.c
+++ b/crypt.c
@@ -515,7 +515,7 @@ int mutt_is_malformed_multipart_pgp_encrypted (BODY *b)
 }
 
 
-int mutt_is_application_pgp (BODY *m)
+int mutt_is_application_pgp (const BODY *m)
 {
   int t = 0;
   char *p;