imap-send: simplify v_issue_imap_cmd() and get_cmd_result() using starts_with()

Use starts_with() instead of memcmp() to check if NUL-terminated
strings match prefixes.  This gets rid of some magic string length
constants.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/imap-send.c b/imap-send.c
index 05a02b51caaca56c11db5cd05c28a970d06ead8d..44fd5249e2afd5c73552c5537101e1fc99158ce4 100644 (file)
--- a/imap-send.c
+++ b/imap-send.c
@@ -526,7 +526,7 @@ static struct imap_cmd *v_issue_imap_cmd(struct imap_store *ctx,
        if (Verbose) {
                if (imap->num_in_progress)
                        printf("(%d in progress) ", imap->num_in_progress);
-               if (memcmp(cmd->cmd, "LOGIN", 5))
+               if (!starts_with(cmd->cmd, "LOGIN"))
                        printf(">>> %s", buf);
                else
                        printf(">>> %d LOGIN <user> <pass>\n", cmd->tag);
@@ -829,7 +829,7 @@ static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd)
                                } else /*if (!strcmp("BAD", arg))*/
                                        resp = RESP_BAD;
                                fprintf(stderr, "IMAP command '%s' returned response (%s) - %s\n",
-                                        memcmp(cmdp->cmd, "LOGIN", 5) ?
+                                       !starts_with(cmdp->cmd, "LOGIN") ?
                                                        cmdp->cmd : "LOGIN <user> <pass>",
                                                        arg, cmd ? cmd : "");
                        }