diff options
Diffstat (limited to 'networking/udhcp/leases.c')
| -rw-r--r-- | networking/udhcp/leases.c | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/networking/udhcp/leases.c b/networking/udhcp/leases.c index dce0566..d478880 100644 --- a/networking/udhcp/leases.c +++ b/networking/udhcp/leases.c @@ -1,5 +1,5 @@ -/* - * leases.c -- tools to manage DHCP leases +/* + * leases.c -- tools to manage DHCP leases * Russ Dill <Russ.Dill@asu.edu> July 2001 */ @@ -23,9 +23,9 @@ uint8_t blank_chaddr[] = {[0 ... 15] = 0}; void clear_lease(uint8_t *chaddr, uint32_t yiaddr) { unsigned int i, j; - + for (j = 0; j < 16 && !chaddr[j]; j++); - + for (i = 0; i < server_config.max_leases; i++) if ((j != 16 && !memcmp(leases[i].chaddr, chaddr, 16)) || (yiaddr && leases[i].yiaddr == yiaddr)) { @@ -38,18 +38,18 @@ void clear_lease(uint8_t *chaddr, uint32_t yiaddr) struct dhcpOfferedAddr *add_lease(uint8_t *chaddr, uint32_t yiaddr, unsigned long lease) { struct dhcpOfferedAddr *oldest; - + /* clean out any old ones */ clear_lease(chaddr, yiaddr); - + oldest = oldest_expired_lease(); - + if (oldest) { memcpy(oldest->chaddr, chaddr, 16); oldest->yiaddr = yiaddr; oldest->expires = time(0) + lease; } - + return oldest; } @@ -58,7 +58,7 @@ struct dhcpOfferedAddr *add_lease(uint8_t *chaddr, uint32_t yiaddr, unsigned lon int lease_expired(struct dhcpOfferedAddr *lease) { return (lease->expires < (unsigned long) time(0)); -} +} /* Find the oldest expired lease, NULL if there are no expired leases */ @@ -68,14 +68,14 @@ struct dhcpOfferedAddr *oldest_expired_lease(void) unsigned long oldest_lease = time(0); unsigned int i; - + for (i = 0; i < server_config.max_leases; i++) if (oldest_lease > leases[i].expires) { oldest_lease = leases[i].expires; oldest = &(leases[i]); } return oldest; - + } @@ -86,7 +86,7 @@ struct dhcpOfferedAddr *find_lease_by_chaddr(uint8_t *chaddr) for (i = 0; i < server_config.max_leases; i++) if (!memcmp(leases[i].chaddr, chaddr, 16)) return &(leases[i]); - + return NULL; } @@ -98,7 +98,7 @@ struct dhcpOfferedAddr *find_lease_by_yiaddr(uint32_t yiaddr) for (i = 0; i < server_config.max_leases; i++) if (leases[i].yiaddr == yiaddr) return &(leases[i]); - + return NULL; } @@ -120,10 +120,10 @@ static int check_ip(uint32_t addr) /* find an assignable address, it check_expired is true, we check all the expired leases as well. * Maybe this should try expired leases by age... */ -uint32_t find_address(int check_expired) +uint32_t find_address(int check_expired) { uint32_t addr, ret; - struct dhcpOfferedAddr *lease = NULL; + struct dhcpOfferedAddr *lease = NULL; addr = ntohl(server_config.start); /* addr is in host order here */ for (;addr <= ntohl(server_config.end); addr++) { |