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import of dnsmasq-2.38.tar.gz

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This commit is contained in:
Simon Kelley
2007-02-12 20:32:07 +00:00
parent 1b7ecd111d
commit 6b01084f8e
20 changed files with 2095 additions and 1931 deletions
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37
src/cache.c
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@@ -13,7 +13,7 @@
#include "dnsmasq.h"
static struct crec *cache_head, *cache_tail, **hash_table;
static struct crec *dhcp_inuse, *dhcp_spare, *new_chain;
static struct crec *dhcp_spare, *new_chain;
static int cache_inserted, cache_live_freed, insert_error;
static union bigname *big_free;
static int bignames_left, log_queries, cache_size, hash_size;
@@ -74,7 +74,7 @@ void cache_init(int size, int logq)
addrbuff = NULL;
cache_head = cache_tail = NULL;
dhcp_inuse = dhcp_spare = NULL;
dhcp_spare = NULL;
new_chain = NULL;
hash_table = NULL;
cache_size = size;
@@ -170,7 +170,7 @@ static void cache_hash(struct crec *crecp)
up = &((*up)->hash_next);
if (crecp->flags & F_IMMORTAL)
while (*up && (!(*up)->flags & F_IMMORTAL))
while (*up && !((*up)->flags & F_IMMORTAL))
up = &((*up)->hash_next);
}
crecp->hash_next = *up;
@@ -282,9 +282,7 @@ static int cache_scan_free(char *name, struct all_addr *addr, time_t now, unsign
if (flags & F_FORWARD)
{
for (up = hash_bucket(name), crecp = *up;
crecp && ((crecp->flags & F_REVERSE) || !(crecp->flags & F_IMMORTAL));
crecp = crecp->hash_next)
for (up = hash_bucket(name), crecp = *up; crecp; crecp = crecp->hash_next)
if (is_expired(now, crecp) || is_outdated_cname_pointer(crecp))
{
*up = crecp->hash_next;
@@ -601,8 +599,7 @@ struct crec *cache_find_by_addr(struct crec *crecp, struct all_addr *addr,
crecp = crecp->hash_next)
if (!is_expired(now, crecp))
{
if ((crecp->flags & F_REVERSE) &&
(crecp->flags & prot) &&
if ((crecp->flags & prot) &&
memcmp(&crecp->addr.addr, addr, addrlen) == 0)
{
if (crecp->flags & (F_HOSTS | F_DHCP))
@@ -834,25 +831,19 @@ void cache_reload(int opts, char *buff, char *domain_suffix, struct hostsfile *a
void cache_unhash_dhcp(void)
{
struct crec *tmp, *cache, **up;
struct crec *cache, **up;
int i;
for (i=0; i<hash_size; i++)
for (cache = hash_table[i], up = &hash_table[i]; cache; cache = cache->hash_next)
if (cache->flags & F_DHCP)
*up = cache->hash_next;
{
*up = cache->hash_next;
cache->next = dhcp_spare;
dhcp_spare = cache;
}
else
up = &cache->hash_next;
/* prev field links all dhcp entries */
for (cache = dhcp_inuse; cache; cache = tmp)
{
tmp = cache->prev;
cache->prev = dhcp_spare;
dhcp_spare = cache;
}
dhcp_inuse = NULL;
}
void cache_add_dhcp_entry(struct daemon *daemon, char *host_name,
@@ -893,7 +884,7 @@ void cache_add_dhcp_entry(struct daemon *daemon, char *host_name,
}
if ((crec = dhcp_spare))
dhcp_spare = dhcp_spare->prev;
dhcp_spare = dhcp_spare->next;
else /* need new one */
crec = malloc(sizeof(struct crec));
@@ -906,14 +897,10 @@ void cache_add_dhcp_entry(struct daemon *daemon, char *host_name,
crec->ttd = ttd;
crec->addr.addr.addr.addr4 = *host_address;
crec->name.namep = host_name;
crec->prev = dhcp_inuse;
dhcp_inuse = crec;
cache_hash(crec);
}
}
void dump_cache(struct daemon *daemon, time_t now)
{
syslog(LOG_INFO, _("time %lu, cache size %d, %d/%d cache insertions re-used unexpired cache entries."),