core: Treat email-only user IDs with upper case letters as email address

* src/key.c (_gpgme_key_append_name): Support email-only user IDs with
upper case letters.

* tests/gpg/t-keylist.c (struct key_info_s): Add algo, length, sec_algo,
sec_length.
(keys): Add expected algo and length for primary and secondary subkeys.
(main): Factor out code for checking a key and the code for the keylist
test. Call the factored out test function and a new test function.
(check_key, test_keylist, key_with_email_only_user_id,
key_info_email_only_user_id,
test_email_only_user_id_with_upper_case_letters): New.
--

Email-only user IDs with upper case letters are now also parsed as a
user ID with empty name and the complete user ID as email.

GnuPG-bug-id: 7280

1 files changed, 17 insertions, 5 deletions

diff --git a/src/key.c b/src/key.c
index fec9eb16..77651d31 100644
--- a/src/key.c
+++ b/src/key.c
@@ -237,12 +237,24 @@ _gpgme_key_append_name (gpgme_key_t key, const char *src, int convert)
 
   uid->address = _gpgme_mailbox_from_userid (uid->uid);
   if ((!uid->email || !*uid->email) && uid->address && uid->name
-      && !strcmp (uid->name, uid->address))
+      && !strcasecmp (uid->name, uid->address))
     {
-      /* Name and address are the same. This is a mailbox only key.
-         Use address as email and remove name. */
-      *uid->name = '\0';
-      uid->email = uid->address;
+      /* Name and address are the same except that some letters may have
+         different case.  This is a mailbox only key. */
+      if (!strcmp (uid->name, uid->address))
+        {
+          /* Name and address are the identical.  Use address as email
+             and remove name. */
+          *uid->name = '\0';
+          uid->email = uid->address;
+        }
+      else
+        {
+          /* Name and address are the same except for different case of
+             some letters.  Use name as email and point name to EOS. */
+          uid->email = uid->name;
+          uid->name = (dst - 1);
+        }
     }
 
   if (!key->uids)