定义位置:/usr/include/netinet/in.h
下次应该不会记错了:INADDR_ANY。
/* Address to accept any incoming messages. */
#define INADDR_ANY ((in_addr_t) 0x00000000)
/* Address to send to all hosts. */
#define INADDR_BROADCAST ((in_addr_t) 0xffffffff)
/* Address indicating an error return. */
#define INADDR_NONE ((in_addr_t) 0xffffffff)
/* Network number for local host loopback. */
#define IN_LOOPBACKNET 127
/* Address to loopback in software to local host. */
#ifndef INADDR_LOOPBACK
# define INADDR_LOOPBACK ((in_addr_t) 0x7f000001) /* Inet 127.0.0.1. */
#endif
/* Defines for Multicast INADDR. */
#define INADDR_UNSPEC_GROUP ((in_addr_t) 0xe0000000) /* 224.0.0.0 */
#define INADDR_ALLHOSTS_GROUP ((in_addr_t) 0xe0000001) /* 224.0.0.1 */
#define INADDR_ALLRTRS_GROUP ((in_addr_t) 0xe0000002) /* 224.0.0.2 */
#define INADDR_MAX_LOCAL_GROUP ((in_addr_t) 0xe00000ff) /* 224.0.0.255 */
评论