diff options
Diffstat (limited to 'nest/a-path.c')
| -rw-r--r-- | nest/a-path.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/nest/a-path.c b/nest/a-path.c index c9c5aefb..32e2d27e 100644 --- a/nest/a-path.c +++ b/nest/a-path.c @@ -220,7 +220,7 @@ as_path_get_last(struct adata *path, u32 *orig_as) p += BS * len; } break; - default: bug("as_path_get_first: Invalid path segment"); + default: bug("Invalid path segment"); } } @@ -229,6 +229,35 @@ as_path_get_last(struct adata *path, u32 *orig_as) return found; } +u32 +as_path_get_last_nonaggregated(struct adata *path) +{ + u8 *p = path->data; + u8 *q = p+path->length; + u32 res = 0; + int len; + + while (p<q) + { + switch (*p++) + { + case AS_PATH_SET: + return res; + + case AS_PATH_SEQUENCE: + if (len = *p++) + res = get_as(p + BS * (len - 1)); + p += BS * len; + break; + + default: bug("Invalid path segment"); + } + } + + return res; +} + + int as_path_get_first(struct adata *path, u32 *last_as) { |