diff options
Diffstat (limited to 'nest/a-path.c')
| -rw-r--r-- | nest/a-path.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/nest/a-path.c b/nest/a-path.c index 557f29c..ca39e29 100644 --- a/nest/a-path.c +++ b/nest/a-path.c @@ -9,8 +9,10 @@ #include "nest/bird.h" #include "nest/route.h" +#include "nest/attrs.h" #include "lib/resource.h" #include "lib/unaligned.h" +#include "lib/string.h" struct adata * as_path_prepend(struct linpool *pool, struct adata *olda, int as) @@ -36,3 +38,46 @@ as_path_prepend(struct linpool *pool, struct adata *olda, int as) put_u16(newa->data+2, as); return newa; } + +void +as_path_format(struct adata *path, byte *buf, unsigned int size) +{ + byte *p = path->data; + byte *e = p + path->length - 8; + byte *end = buf + size; + int sp = 1; + int l, type, isset, as; + + while (p < e) + { + if (buf > end) + { + strcpy(buf, " ..."); + return; + } + isset = (*p++ == AS_PATH_SET); + l = *p++; + if (isset) + { + if (!sp) + *buf++ = ' '; + *buf++ = '{'; + sp = 0; + } + while (l-- && buf <= end) + { + if (!sp) + *buf++ = ' '; + buf += bsprintf(buf, "%d", get_u16(p)); + p += 2; + sp = 0; + } + if (isset) + { + *buf++ = ' '; + *buf++ = '}'; + sp = 0; + } + } + *buf = 0; +} |