imap-send: drop unused parameter from imap_cmd_cb callback

There's a generic callback mechanism for handling plus-continuation of
IMAP commands. It takes the imap_cmd struct itself as an argument. That
seems reasonable, and in a larger imap-using program it might be used.
But in imap-send, we have only one such callback (auth_cram_md5) and it
doesn't use this value, triggering -Wunused-parameter warnings.

We could just mark the parameter as UNUSED. But since this is the only
such function, and because we are not likely to share code with the
upstream isync anymore, we can just simplify the interface to remove
this parameter.

Signed-off-by: Jeff King <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: peff

imap-send.c

@@ -137,7 +137,7 @@ struct imap_store {
 };
 
 struct imap_cmd_cb {
-	int (*cont)(struct imap_store *ctx, struct imap_cmd *cmd, const char *prompt);
+	int (*cont)(struct imap_store *ctx, const char *prompt);
 	void (*done)(struct imap_store *ctx, struct imap_cmd *cmd, int response);
 	void *ctx;
 	char *data;
@@ -786,7 +786,7 @@ static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd)
 				if (n != (int)cmdp->cb.dlen)
 					return RESP_BAD;
 			} else if (cmdp->cb.cont) {
-				if (cmdp->cb.cont(ctx, cmdp, cmd))
+				if (cmdp->cb.cont(ctx, cmd))
 					return RESP_BAD;
 			} else {
 				fprintf(stderr, "IMAP error: unexpected command continuation request\n");
@@ -917,7 +917,7 @@ static char *cram(const char *challenge_64, const char *user, const char *pass)
 
 #endif
 
-static int auth_cram_md5(struct imap_store *ctx, struct imap_cmd *cmd, const char *prompt)
+static int auth_cram_md5(struct imap_store *ctx, const char *prompt)
 {
 	int ret;
 	char *response;