X-Git-Url: http://git.tuebingen.mpg.de/?a=blobdiff_plain;f=fecdec_filter.c;h=daecee7e5fc50bcb61f8cad8c481efb4e006a2b3;hb=92ac8f15dac214cc1b8f9e16288646068cac6432;hp=817e4c66c7bc96a2e59b5b7230d8b490633dbbb6;hpb=9da3498d99e07ba38a205fa3833f1ec95bc7b33b;p=paraslash.git

diff --git a/fecdec_filter.c b/fecdec_filter.c
index 817e4c66..daecee7e 100644
--- a/fecdec_filter.c
+++ b/fecdec_filter.c
@@ -117,10 +117,15 @@ static int find_group(struct fec_header *h,
 	FOR_EACH_FECDEC_GROUP(fg, pfd) {
 		if (fg->h.group_num != h->group_num)
 			continue;
+		if (fg->num_received_slices == 0)
+			goto success;
 		if (fg->h.slices_per_group != h->slices_per_group)
-			continue;
+			return -E_BAD_FEC_HEADER;
 		if (fg->h.data_slices_per_group != h->data_slices_per_group)
-			continue;
+			return -E_BAD_FEC_HEADER;
+		if (fg->h.group_bytes != h->group_bytes)
+			return -E_BAD_FEC_HEADER;
+success:
 		*result = fg;
 		return 1;
 	}
@@ -358,7 +363,7 @@ static ssize_t fecdec(char *buf, size_t len, struct filter_node *fn)
 	ret = read_fec_header(buf, len, &h);
 	if (ret <= 0)
 		return ret;
-	if (!h.slice_bytes || h.slice_bytes > fn->bufsize)
+	if (!h.slice_bytes)
 		return -E_BAD_SLICE_SIZE;
 	if (h.slice_num > h.slices_per_group)
 		return -E_BAD_SLICE_NUM;