Adding upstream version 1:2.3.21+dfsg1.upstream/1%2.3.21+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 28 insertions, 0 deletions

diff --git a/src/lib-mail/istream-attachment-connector.h b/src/lib-mail/istream-attachment-connector.h
new file mode 100644
index 0000000..df829cd
--- /dev/null
+++ b/src/lib-mail/istream-attachment-connector.h
@@ -0,0 +1,28 @@
+#ifndef ISTREAM_ATTACHMENT_CONNECTOR_H
+#define ISTREAM_ATTACHMENT_CONNECTOR_H
+
+/* Start building a message stream. The base_input contains the message
+   without attachments. The final stream must be exactly msg_size bytes.
+   If the original msg_size isn't known, it can be set to UOFF_T_MAX. */
+struct istream_attachment_connector *
+istream_attachment_connector_begin(struct istream *base_input, uoff_t msg_size);
+
+/* Add the given input stream as attachment. The attachment starts at the given
+   start_offset in the (original) message. If base64_blocks_per_line is
+   non-zero, the input is base64-encoded with the given settings. The
+   (resulting base64-encoded) input must have exactly encoded_size bytes.
+
+   Returns 0 if the input was ok, -1 if we've already reached msg_size or
+   attachment offsets/sizes aren't valid. */
+int istream_attachment_connector_add(struct istream_attachment_connector *conn,
+				     struct istream *decoded_input,
+				     uoff_t start_offset, uoff_t encoded_size,
+				     unsigned int base64_blocks_per_line,
+				     bool base64_have_crlf,
+				     const char **error_r);
+
+struct istream *
+istream_attachment_connector_finish(struct istream_attachment_connector **conn);
+void istream_attachment_connector_abort(struct istream_attachment_connector **conn);
+
+#endif