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Manpages LWRES_GETNAMEINFOSection: C Library Functions (3)Updated: Jun 30, 2000 Index Return to Main Contents NAMElwres_getnameinfo - lightweight resolver socket address structure to hostname and service nameSYNOPSIS#include <lwres/netdb.h>int lwres_getnameinfo(const struct sockaddr *sa, size_t salen, char *host, size_t hostlen, char *serv, size_t servlen, int flags); DESCRIPTIONThis function is equivalent to the getnameinfo(3) function defined in RFC2133. lwres_getnameinfo() returns the hostname for the struct sockaddr sa which is salen bytes long. The hostname is of length hostlen and is returned via *host. The maximum length of the hostname is 1025 bytes: NI_MAXHOST. The name of the service associated with the port number in sa is returned in *serv. It is servlen bytes long. The maximum length of the service name is NI_MAXSERV - 32 bytes. The flags argument sets the following bits:
RETURN VALUESlwres_getnameinfo() returns 0 on success or a non-zero error code if an error occurs. SEE ALSORFC2133, getservbyport(3), lwres(3), lwres_getnameinfo(3), lwres_getnamebyaddr(3). lwres_net_ntop(3). BUGSRFC2133 fails to define what the nonzero return values of getnameinfo(3) are.
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