mdbox: Use unlimited buffer size when copying metadata while purging.

diff --git a/src/lib-storage/index/dbox-multi/mdbox-purge.c b/src/lib-storage/index/dbox-multi/mdbox-purge.c
index 77ba851bd550740c38ed8602e764fb0298503327..771e04f20c579fa263888fa05bff12e101662c3b 100644 (file)
--- a/src/lib-storage/index/dbox-multi/mdbox-purge.c
+++ b/src/lib-storage/index/dbox-multi/mdbox-purge.c
@@ -68,7 +68,7 @@ mdbox_file_copy_metadata(struct dbox_file *file, struct ostream *output)
        struct dbox_metadata_header meta_hdr;
        const char *line;
        const unsigned char *data;
-       size_t size;
+       size_t size, buf_size;
        int ret;
 
        ret = i_stream_read_data(file->input, &data, &size,
@@ -93,6 +93,9 @@ mdbox_file_copy_metadata(struct dbox_file *file, struct ostream *output)
        i_stream_skip(file->input, sizeof(meta_hdr));
        if (output != NULL)
                o_stream_send(output, &meta_hdr, sizeof(meta_hdr));
+
+       buf_size = i_stream_get_max_buffer_size(file->input);
+       i_stream_set_max_buffer_size(file->input, 0);
        while ((line = i_stream_read_next_line(file->input)) != NULL) {
                if (*line == DBOX_METADATA_OLDV1_SPACE || *line == '\0') {
                        /* end of metadata */
@@ -103,6 +106,8 @@ mdbox_file_copy_metadata(struct dbox_file *file, struct ostream *output)
                        o_stream_send(output, "\n", 1);
                }
        }
+       i_stream_set_max_buffer_size(file->input, buf_size);
+
        if (line == NULL) {
                dbox_file_set_corrupted(file, "missing end-of-metadata line");
                return 0;