Allow fingerprint user input for key selection. (see #3695)

Accept and check input of a fingerprint and find the matching key.

Note that for both to work, match against and display of fingerprint, the
pgp_list_pubring_command and pgp_list_secring_command need to contain the
--with-fingerprint option, or have with-fingerprint in ~/.gnupg/gpg.conf.

1 files changed, 14 insertions, 0 deletions

diff --git a/mutt_crypt.h b/mutt_crypt.h
index c9fcd893..49345606 100644
--- a/mutt_crypt.h
+++ b/mutt_crypt.h
@@ -153,6 +153,20 @@ int crypt_valid_passphrase (int);
    TEMPFILE.  */
 int crypt_write_signed(BODY *a, STATE *s, const char *tempf);
 
+/* Obtain pointers to fingerprint or short or long key ID, if any.
+ 
+   Upon return, at most one of return, *ppl and *pps pointers is non-NULL,
+   indicating the longest fingerprint or ID found, if any.
+
+   Return:  Copy of fingerprint, if any, stripped of all spaces, else NULL.
+            Must be FREE'd by caller.
+   *pphint  Start of string to be passed to pgp_add_string_to_hints() or 
+            crypt_add_string_to_hints().
+   *ppl     Start of long key ID if detected, else NULL.
+   *pps     Start of short key ID if detected, else NULL. */
+const char* crypt_get_fingerprint_or_id (char *p, const char **pphint,
+    const char **ppl, const char **pps);
+
 
 
 /*-- cryptglue.c --*/