/*
* Process the multipart preamble:
* [ preamble line-end ] dashed-boundary transport-padding line-end
*
* Return the offset to the start of the first body-part.
*/
static gint
process_preamble(proto_tree *tree, tvbuff_t *tvb, const guint8 *boundary,
gint boundary_len, gboolean *last_boundary)
{
gint boundary_start, boundary_line_len;
boundary_start = find_first_boundary(tvb, 0, boundary, boundary_len,
&boundary_line_len, last_boundary);
if (boundary_start == 0) {
proto_tree_add_text(tree, tvb, boundary_start, boundary_line_len,
"First boundary: %s",
tvb_format_text(tvb, boundary_start, boundary_line_len));
return boundary_start + boundary_line_len;
} else if (boundary_start > 0) {
if (boundary_line_len > 0) {
gint body_part_start = boundary_start + boundary_line_len;
if (body_part_start > 0) {
proto_tree_add_text(tree, tvb, 0, body_part_start,
"Preamble");
}
proto_tree_add_text(tree, tvb, boundary_start,
boundary_line_len, "First boundary: %s",
tvb_format_text(tvb, boundary_start,
boundary_line_len));
return body_part_start;
}
}
return -1;
}
/*
* Process the multipart preamble:
* [ preamble line-end ] dashed-boundary transport-padding line-end
*
* Return the offset to the start of the first body-part.
*/
static gint
process_preamble(proto_tree *tree, tvbuff_t *tvb, multipart_info_t *m_info,
gboolean *last_boundary)
{
gint boundary_start, boundary_line_len;
const guint8 *boundary = (guint8 *)m_info->boundary;
gint boundary_len = m_info->boundary_length;
boundary_start = find_first_boundary(tvb, 0, boundary, boundary_len,
&boundary_line_len, last_boundary);
if (boundary_start == 0) {
proto_tree_add_item(tree, hf_multipart_first_boundary, tvb, boundary_start, boundary_line_len, ENC_NA|ENC_ASCII);
return boundary_start + boundary_line_len;
} else if (boundary_start > 0) {
if (boundary_line_len > 0) {
gint body_part_start = boundary_start + boundary_line_len;
if (boundary_start > 0) {
proto_tree_add_item(tree, hf_multipart_preamble, tvb, 0, boundary_start, ENC_NA);
}
proto_tree_add_item(tree, hf_multipart_first_boundary, tvb, boundary_start, boundary_line_len, ENC_NA|ENC_ASCII);
return body_part_start;
}
}
return -1;
}
