_notmuch_message_crypto_potential_payload is called on a GMimeObject
while walking the MIME tree of a message to determine whether that
object is the payload.  It doesn't make sense to name the argument
"payload" if it might not be the payload, so we rename it to "part"
for clarity.

This is a non-functional change, just semantic cleanup.

Signed-off-by: Daniel Kahn Gillmor <d...@fifthhorseman.net>
---
 util/crypto.c | 16 ++++++++--------
 util/crypto.h |  2 +-
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/util/crypto.c b/util/crypto.c
index 225f537a..3845ade8 100644
--- a/util/crypto.c
+++ b/util/crypto.c
@@ -136,13 +136,13 @@ _notmuch_message_crypto_potential_sig_list 
(_notmuch_message_crypto_t *msg_crypt
 
 
 notmuch_status_t
-_notmuch_message_crypto_potential_payload (_notmuch_message_crypto_t 
*msg_crypto, GMimeObject *payload, GMimeObject *parent, int childnum)
+_notmuch_message_crypto_potential_payload (_notmuch_message_crypto_t 
*msg_crypto, GMimeObject *part, GMimeObject *parent, int childnum)
 {
     const char *protected_headers = NULL;
     const char *forwarded = NULL;
     const char *subject = NULL;
 
-    if (! msg_crypto || ! payload)
+    if (! msg_crypto || ! part)
        return NOTMUCH_STATUS_NULL_POINTER;
 
     /* only fire on the first payload part encountered */
@@ -155,7 +155,7 @@ _notmuch_message_crypto_potential_payload 
(_notmuch_message_crypto_t *msg_crypto
      * https://tools.ietf.org/html/rfc1847#page-8) */
     if (parent && GMIME_IS_MULTIPART_ENCRYPTED (parent) && childnum == 
GMIME_MULTIPART_ENCRYPTED_VERSION) {
        const char *enc_type = g_mime_object_get_content_type_parameter 
(parent, "protocol");
-       GMimeContentType *ct = g_mime_object_get_content_type (payload);
+       GMimeContentType *ct = g_mime_object_get_content_type (part);
        if (ct && enc_type) {
            const char *part_type = g_mime_content_type_get_mime_type (ct);
            if (part_type && strcmp (part_type, enc_type) == 0)
@@ -177,16 +177,16 @@ _notmuch_message_crypto_potential_payload 
(_notmuch_message_crypto_t *msg_crypto
     /* Consider a payload that uses Alexei Melinkov's forwarded="no" for
      * message/global or message/rfc822:
      * 
https://tools.ietf.org/html/draft-melnikov-smime-header-signing-05#section-4 */
-    forwarded = g_mime_object_get_content_type_parameter (payload, 
"forwarded");
-    if (GMIME_IS_MESSAGE_PART (payload) && forwarded && strcmp (forwarded, 
"no") == 0) {
-       GMimeMessage *message = g_mime_message_part_get_message 
(GMIME_MESSAGE_PART (payload));
+    forwarded = g_mime_object_get_content_type_parameter (part, "forwarded");
+    if (GMIME_IS_MESSAGE_PART (part) && forwarded && strcmp (forwarded, "no") 
== 0) {
+       GMimeMessage *message = g_mime_message_part_get_message 
(GMIME_MESSAGE_PART (part));
        subject = g_mime_message_get_subject (message);
        /* FIXME: handle more than just Subject: at some point */
     } else {
        /* Consider "memoryhole"-style protected headers as practiced by 
Enigmail and K-9 */
-       protected_headers = g_mime_object_get_content_type_parameter (payload, 
"protected-headers");
+       protected_headers = g_mime_object_get_content_type_parameter (part, 
"protected-headers");
        if (protected_headers && strcasecmp ("v1", protected_headers) == 0)
-           subject = g_mime_object_get_header (payload, "Subject");
+           subject = g_mime_object_get_header (part, "Subject");
        /* FIXME: handle more than just Subject: at some point */
     }
 
diff --git a/util/crypto.h b/util/crypto.h
index 11e8060a..c4411246 100644
--- a/util/crypto.h
+++ b/util/crypto.h
@@ -92,7 +92,7 @@ _notmuch_message_crypto_successful_decryption 
(_notmuch_message_crypto_t *msg_cr
  * when encountering a message part that is not part of the envelope.
  */
 notmuch_status_t
-_notmuch_message_crypto_potential_payload (_notmuch_message_crypto_t 
*msg_crypto, GMimeObject *payload, GMimeObject *parent, int childnum);
+_notmuch_message_crypto_potential_payload (_notmuch_message_crypto_t 
*msg_crypto, GMimeObject *part, GMimeObject *parent, int childnum);
 
 
 #ifdef __cplusplus
-- 
2.23.0.rc1

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