1 files changed, 86 insertions, 0 deletions
diff --git a/src/log/doveadm-connection.c b/src/log/doveadm-connection.c
new file mode 100644
index 0000000..77872ac
--- /dev/null
+++ b/src/log/doveadm-connection.c
@@ -0,0 +1,86 @@
+/* Copyright (c) 2013-2018 Dovecot authors, see the included COPYING file */
+
+#include "lib.h"
+#include "ostream.h"
+#include "str.h"
+#include "strescape.h"
+#include "master-service.h"
+#include "log-error-buffer.h"
+#include "doveadm-connection.h"
+
+#include <unistd.h>
+
+struct doveadm_connection {
+	struct log_error_buffer *errorbuf;
+
+	int fd;
+	struct ostream *output;
+};
+
+static void doveadm_connection_destroy(struct doveadm_connection **_conn);
+
+static int doveadm_connection_send_errors(struct doveadm_connection *conn)
+{
+	struct log_error_buffer_iter *iter;
+	const struct log_error *error;
+	string_t *str = t_str_new(256);
+	int ret = 0;
+
+	iter = log_error_buffer_iter_init(conn->errorbuf);
+	while ((error = log_error_buffer_iter_next(iter)) != NULL) {
+		str_truncate(str, 0);
+		str_printfa(str, "%s\t%ld\t",
+			    failure_log_type_names[error->type],
+			    (long)error->timestamp);
+		str_append_tabescaped(str, error->prefix);
+		str_append_c(str, '\t');
+		str_append_tabescaped(str, error->text);
+		str_append_c(str, '\n');
+		if (o_stream_send(conn->output,
+				  str_data(str), str_len(str)) < 0) {
+			ret = -1;
+			break;
+		}
+	}
+	log_error_buffer_iter_deinit(&iter);
+	return ret;
+}
+
+static int doveadm_output(struct doveadm_connection *conn)
+{
+	if (o_stream_flush(conn->output) != 0) {
+		/* error / finished */
+		doveadm_connection_destroy(&conn);
+	}
+	return 1;
+}
+
+void doveadm_connection_create(struct log_error_buffer *errorbuf, int fd)
+{
+	struct doveadm_connection *conn;
+
+	conn = i_new(struct doveadm_connection, 1);
+	conn->errorbuf = errorbuf;
+	conn->fd = fd;
+	conn->output = o_stream_create_fd(conn->fd, SIZE_MAX);
+	if (doveadm_connection_send_errors(conn) < 0)
+		doveadm_connection_destroy(&conn);
+	else {
+		o_stream_set_flush_callback(conn->output, doveadm_output, conn);
+		o_stream_set_flush_pending(conn->output, TRUE);
+	}
+}
+
+static void doveadm_connection_destroy(struct doveadm_connection **_conn)
+{
+	struct doveadm_connection *conn = *_conn;
+
+	*_conn = NULL;
+
+	o_stream_destroy(&conn->output);
+	if (close(conn->fd) < 0)
+		i_error("close(doveadm connection) failed: %m");
+	i_free(conn);
+
+	master_service_client_connection_destroyed(master_service);
+}