/* Incomplete implementation, single ipv4 addr, service does not work, hints do not work */
int
tds_getaddrinfo(const char *node, const char *service, const struct tds_addrinfo *hints, struct tds_addrinfo **res)
{
struct tds_addrinfo *addr;
struct sockaddr_in *sin = NULL;
struct hostent *host;
in_addr_t ipaddr;
char buffer[4096];
struct hostent result;
int h_errnop, port = 0;
assert(node != NULL);
if ((addr = (tds_addrinfo *) calloc(1, sizeof(struct tds_addrinfo))) == NULL)
goto Cleanup;
if ((sin = (struct sockaddr_in *) calloc(1, sizeof(struct sockaddr_in))) == NULL)
goto Cleanup;
addr->ai_addr = (struct sockaddr *) sin;
addr->ai_addrlen = sizeof(struct sockaddr_in);
addr->ai_family = AF_INET;
if ((ipaddr = inet_addr(node)) == INADDR_NONE) {
if ((host = tds_gethostbyname_r(node, &result, buffer, sizeof(buffer), &h_errnop)) == NULL)
goto Cleanup;
if (host->h_name)
addr->ai_canonname = strdup(host->h_name);
ipaddr = *(in_addr_t *) host->h_addr;
}
if (service) {
port = atoi(service);
if (!port)
port = tds_getservice(service);
}
sin->sin_family = AF_INET;
sin->sin_addr.s_addr = ipaddr;
sin->sin_port = htons(port);
*res = addr;
return 0;
Cleanup:
if (addr != NULL)
tds_freeaddrinfo(addr);
return -1;
}
/* TODO callers seem to set always connection info... change it */
void
tds_lookup_host(const char *servername, /* (I) name of the server */
char *ip /* (O) dotted-decimal ip address of server */
)
{ /* (O) port number of the service */
struct hostent *host = NULL;
unsigned int ip_addr = 0;
/* Storage for reentrant getaddrby* calls */
struct hostent result;
char buffer[4096];
int h_errnop;
/* Only call gethostbyname if servername is not an ip address.
* This call take a while and is useless for an ip address.
* mlilback 3/2/02 */
ip_addr = inet_addr(servername);
if (ip_addr != INADDR_NONE) {
strncpy(ip, servername, 17);
return;
}
host = tds_gethostbyname_r(servername, &result, buffer, sizeof(buffer), &h_errnop);
ip[0] = '\0';
if (host) {
struct in_addr *ptr = (struct in_addr *) host->h_addr;
#if defined(AF_INET) && HAVE_INET_NTOP
inet_ntop(AF_INET, ptr, ip, 17);
#elif HAVE_INET_NTOA_R
inet_ntoa_r(*ptr, ip, 17);
#else
strncpy(ip, inet_ntoa(*ptr), 17);
#endif
}
} /* tds_lookup_host() */