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First and last accessors to as_paths.

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This commit is contained in:
Ondrej Zajicek
2009-10-08 15:23:24 +01:00
parent 43c7a1ffa0
commit 7ea5b00f42
2 changed files with 24 additions and 1 deletions
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21
filter/filter.c
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@@ -353,6 +353,7 @@ interpret(struct f_inst *what)
struct f_val v1, v2, res;
unsigned u1, u2;
int i;
u32 as;
res.type = T_VOID;
if (!what)
@@ -727,6 +728,26 @@ interpret(struct f_inst *what)
default: bug( "Unknown prefix to conversion" );
}
break;
case P('a','f'): /* Get first ASN from AS PATH */
ONEARG;
if (v1.type != T_PATH)
runtime( "AS Path expected" );
as = 0;
as_path_get_last(v1.val.ad, &as); /* really last */
res.type = T_INT;
res.val.i = as;
break;
case P('a','l'): /* Get last ASN from AS PATH */
ONEARG;
if (v1.type != T_PATH)
runtime( "AS path expected" );
as = 0;
as_path_get_first(v1.val.ad, &as); /* really first */
res.type = T_INT;
res.val.i = as;
break;
case 'r':
ONEARG;
res = v1;