/**
* Given a portname lookup the port.
*
* If we can't determine the port number then return 0.
*/
static int
tds_lookup_port(const char *portname)
{
int num = atoi(portname);
if (!num)
num = tds_getservice(portname);
return num;
}
/* 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;
}