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Added ip_addr_netmask_valid() to check if a netmask is valid (starting with ones, then only zeros)

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goldsimon
2010-07-05 14:20:58 +00:00
parent 2b355d6b34
commit 60a456f757
2 changed files with 35 additions and 3 deletions
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3
src/include/ipv4/lwip/ip_addr.h
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@@ -202,6 +202,9 @@ extern const ip_addr_t ip_addr_broadcast;
#define ip_addr_isbroadcast(ipaddr, netif) ip4_addr_isbroadcast((ipaddr)->addr, (netif))
u8_t ip4_addr_isbroadcast(u32_t addr, const struct netif *netif);
#define ip_addr_netmask_valid(netmask) ip4_addr_netmask_valid((netmask)->addr)
u8_t ip4_addr_netmask_valid(u32_t netmask);
#define ip_addr_ismulticast(addr1) (((addr1)->addr & PP_HTONL(0xf0000000UL)) == PP_HTONL(0xe0000000UL))
#define ip_addr_islinklocal(addr1) (((addr1)->addr & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xa9fe0000UL))