dovecot-2.1: auth: Keep auth_request referenced during DNS lookup.

[dovecot at dovecot.org]

details:   http://hg.dovecot.org/dovecot-2.1/rev/f819e0a3a4df
changeset: 14970:f819e0a3a4df
user:      Timo Sirainen <tss at iki.fi>
date:      Tue May 28 17:33:35 2013 +0300
description:
auth: Keep auth_request referenced during DNS lookup.
If the underlying auth connection gets closed, there's nothing else
referencing the auth_request.

diffstat:

 src/auth/auth-request.c |  3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diffs (25 lines):

diff -r c0c5dac8ff48 -r f819e0a3a4df src/auth/auth-request.c
--- a/src/auth/auth-request.c	Sun May 26 21:45:33 2013 +0300
+++ b/src/auth/auth-request.c	Tue May 28 17:33:35 2013 +0300
@@ -1594,6 +1594,7 @@
 	}
 	if (ctx->callback != NULL)
 		ctx->callback(result->ret == 0, request);
+	auth_request_unref(&request);
 	i_free(ctx);
 }
 
@@ -1631,11 +1632,13 @@
 
 	ctx = i_new(struct auth_request_proxy_dns_lookup_ctx, 1);
 	ctx->request = request;
+	auth_request_ref(request);
 
 	if (dns_lookup(host, &dns_set, auth_request_proxy_dns_callback, ctx) < 0) {
 		/* failed early */
 		request->internal_failure = TRUE;
 		auth_request_proxy_finish_failure(request);
+		auth_request_unref(&request);
 		return -1;
 	}
 	ctx->callback = callback;