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Fixed clearing of head and tail pointers in snmp_mib_node_delete().

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This commit is contained in:
christiaans 2006-10-03 10:41:48 +00:00
parent 7eddf93b36
commit 25ed4e9d16
1 changed files with 79 additions and 1 deletions
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80
src/core/snmp/mib_structs.c
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@ -437,7 +437,11 @@ snmp_mib_node_delete(struct mib_list_rootnode *rn, struct mib_list_node *n)
}
LWIP_DEBUGF(SNMP_MIB_DEBUG,("free list objid==%"S32_F"\n",n->objid));
snmp_mib_ln_free(n);
if (rn->count == 0)
{
rn->head = NULL;
rn->tail = NULL;
}
return next;
}
@ -930,14 +934,88 @@ snmp_expand_tree(struct mib_node *node, u8_t ident_len, s32_t *ident, struct snm
}
if (i < len)
{
/* add identifier to oidret */
en->get_objid(en->addr_inf,ext_level,i,&oidret->id[oidret->len]);
LWIP_DEBUGF(SNMP_MIB_DEBUG,("en->objid[%"U16_F"]==%"S32_F" *ident==%"S32_F"\n",i,oidret->id[oidret->len],*ident));
(oidret->len)++;
if ((ext_level + 1) == en->tree_levels)
{
LWIP_DEBUGF(SNMP_MIB_DEBUG,("leaf node\n"));
/* leaf node */
if ((i + 1) < len)
{
(oidret->len)--;
en->get_objid(en->addr_inf,ext_level,i + 1,&oidret->id[oidret->len]);
(oidret->len)++;
}
else
{
(oidret->len)--;
climb_tree = 1;
}
}
else
{
u8_t j;
struct nse cur_node;
LWIP_DEBUGF(SNMP_MIB_DEBUG,("non-leaf node\n"));
/* non-leaf, store right child ptr and id */
j = i + 1;
while (j < len)
{
j++;
}
if (j < len)
{
/* right node is the current external node (@todo save j and level) */
cur_node.r_ptr = node;
en->get_objid(en->addr_inf,ext_level,j,&cur_node.r_id);
}
else
{
cur_node.r_ptr = NULL;
}
LWIP_DEBUGF(SNMP_MIB_DEBUG,("expand, push_node() node=%p id=%"S32_F"\n",(void*)cur_node.r_ptr,cur_node.r_id));
push_node(&cur_node);
if (en->ident_cmp(en->addr_inf,ext_level,i,*ident) == 0)
{
ident_len--;
ident++;
}
else
{
/* external id < *ident */
ident_len = 0;
}
/* proceed to child */
ext_level++;
}
}
else
{
/* i == len (en->level_len()) */
climb_tree = 1;
}
}
else
{
/* ident_len == 0, complete with leftmost '.thing' */
en->get_objid(en->addr_inf,ext_level,0,&oidret->id[oidret->len]);
LWIP_DEBUGF(SNMP_MIB_DEBUG,("left en->objid==%"S32_F"\n",oidret->id[oidret->len]));
(oidret->len)++;
if ((ext_level + 1) == en->tree_levels)
{
/* leaf node */
LWIP_DEBUGF(SNMP_MIB_DEBUG,("(ext_level + 1) == en->tree_levels\n"));
return (struct mib_node*)en;
}
else
{
/* no leaf, proceed to child */
ext_level++;
}
}
}
#endif