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pknock: use preincrements where possible

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Preincrements are much less error-prone and even do not need extra
parentheses.
This commit is contained in:
Jan Engelhardt
2009-10-03 01:05:12 +02:00
parent f474c7d4d4
commit ba9a3efec1
2 changed files with 9 additions and 9 deletions
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12
extensions/xt_pknock.c
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@@ -96,7 +96,7 @@ enum {
};
#define hashtable_for_each_safe(pos, n, head, size, i) \
for ((i) = 0; (i) < (size); (i)++) \
for ((i) = 0; (i) < (size); ++(i)) \
list_for_each_safe((pos), (n), (&head[(i)]))
#define pk_debug(msg, peer) pr_debug( \
@@ -176,7 +176,7 @@ alloc_hashtable(unsigned int size)
return NULL;
}
for (i = 0; i < size; i++)
for (i = 0; i < size; ++i)
INIT_LIST_HEAD(&hash[i]);
return hash;
@@ -230,7 +230,7 @@ pknock_seq_next(struct seq_file *s, void *v, loff_t *pos)
const struct proc_dir_entry *pde = s->private;
const struct xt_pknock_rule *rule = pde->data;
(*pos)++;
++*pos;
if (*pos >= peer_hashsize)
return NULL;
@@ -432,7 +432,7 @@ add_rule(struct xt_pknock_mtinfo *info)
rule = list_entry(pos, struct xt_pknock_rule, head);
if (rulecmp(info, rule)) {
rule->ref_count++;
++rule->ref_count;
if (info->option & XT_PKNOCK_CHECKIP) {
pr_debug("add_rule() (AC)"
" rule found: %s - "
@@ -720,7 +720,7 @@ static void
crypt_to_hex(char *out, const char *crypt, unsigned int size)
{
unsigned int i;
for (i=0; i < size; i++) {
for (i = 0; i < size; ++i) {
unsigned char c = crypt[i];
*out++ = '0' + ((c&0xf0)>>4) + (c>=0xa0)*('a'-'9'-1);
*out++ = '0' + (c&0x0f) + ((c&0x0f)>=0x0a)*('a'-'9'-1);
@@ -879,7 +879,7 @@ update_peer(struct peer *peer, const struct xt_pknock_mtinfo *info,
/* Just update the timer when there is a state change. */
update_rule_timer(rule);
peer->id_port_knocked++;
++peer->id_port_knocked;
if (is_last_knock(peer, info)) {
peer->status = ST_ALLOWED;