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isisd: Fix lsp_build_list_nonzero_ht

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When `first` would be initialized to the same value as `last`, the
function would return incorrect results.

Signed-off-by: Christian Franke <chris@opensourcerouting.org>
This commit is contained in:
Christian Franke 2018-11-10 16:14:40 +01:00
parent 3759776ccd
commit 9337256ebf
1 changed files with 8 additions and 20 deletions
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28
isisd/isis_lsp.c
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@ -578,29 +578,17 @@ void lsp_insert(struct isis_lsp *lsp, dict_t *lspdb)
void lsp_build_list_nonzero_ht(uint8_t *start_id, uint8_t *stop_id,
struct list *list, dict_t *lspdb)
{
dnode_t *first, *last, *curr;
for (dnode_t *curr = dict_lower_bound(lspdb, start_id);
curr; curr = dict_next(lspdb, curr)) {
struct isis_lsp *lsp = curr->dict_data;
first = dict_lower_bound(lspdb, start_id);
if (!first)
return;
last = dict_upper_bound(lspdb, stop_id);
curr = first;
if (((struct isis_lsp *)(curr->dict_data))->hdr.rem_lifetime)
listnode_add(list, first->dict_data);
while (curr) {
curr = dict_next(lspdb, curr);
if (curr
&& ((struct isis_lsp *)(curr->dict_data))->hdr.rem_lifetime)
listnode_add(list, curr->dict_data);
if (curr == last)
if (memcmp(lsp->hdr.lsp_id, stop_id,
ISIS_SYS_ID_LEN + 2) > 0)
break;
}
return;
if (lsp->hdr.rem_lifetime)
listnode_add(list, lsp);
}
}
static void lsp_set_time(struct isis_lsp *lsp)