getaddrinfo()

• int getaddrinfo(const char *nodename, const char　*servname,

• const struct addrinfo *hints,

• struct addrinfo **res);

• struct addrinfo {

• int ai_flags; /* flags */

• int ai_family; /* protocol family PF_xxx */

• int ai_socktype; /* socket type SOCK_xxx */

• int ai_protocol; /* protocol type; IPPROTO_xxx in IP */

• socklen_t ai_addrlen; /* length of socket address structure */

• char *ai_canonname; /* canonical name of the node */

• struct sockaddr *ai_addr; /* socket address structure */

• struct addrinfo *ai_next; /* next address information in the list */

• };

• Protocol independent Name-to-address translation function

• Search by node name, service name and searching options

• Socket address structure instead of raw address structure

  • Scope information

• MT-Safe

Notes: