#define NEED_SOCKETS
#include "k5-int.h"
#include "fake-addrinfo.h"
krb5_error_code
krb5_os_hostaddr(krb5_context context, const char *name, krb5_address ***ret_addrs)
{
krb5_error_code retval;
krb5_address **addrs;
int i, j, r;
struct addrinfo hints, *ai, *aip;
if (!name)
return KRB5_ERR_BAD_HOSTNAME;
memset (&hints, 0, sizeof (hints));
hints.ai_flags = AI_NUMERICHOST;
hints.ai_socktype = SOCK_DGRAM;
r = getaddrinfo (name, 0, &hints, &ai);
if (r && AI_NUMERICHOST != 0) {
hints.ai_flags &= ~AI_NUMERICHOST;
r = getaddrinfo (name, 0, &hints, &ai);
}
if (r)
return KRB5_ERR_BAD_HOSTNAME;
for (i = 0, aip = ai; aip; aip = aip->ai_next) {
switch (aip->ai_addr->sa_family) {
case AF_INET:
#ifdef KRB5_USE_INET6
case AF_INET6:
#endif
i++;
default:
;
}
}
addrs = malloc ((i+1) * sizeof(*addrs));
if (!addrs)
return errno;
for (j = 0; j < i + 1; j++)
addrs[j] = 0;
for (i = 0, aip = ai; aip; aip = aip->ai_next) {
void *ptr;
size_t addrlen;
int atype;
switch (aip->ai_addr->sa_family) {
case AF_INET:
addrlen = sizeof (struct in_addr);
ptr = &((struct sockaddr_in *)aip->ai_addr)->sin_addr;
atype = ADDRTYPE_INET;
break;
#ifdef KRB5_USE_INET6
case AF_INET6:
addrlen = sizeof (struct in6_addr);
ptr = &((struct sockaddr_in6 *)aip->ai_addr)->sin6_addr;
atype = ADDRTYPE_INET6;
break;
#endif
default:
continue;
}
addrs[i] = (krb5_address *) malloc(sizeof(krb5_address));
if (!addrs[i]) {
retval = ENOMEM;
goto errout;
}
addrs[i]->magic = KV5M_ADDRESS;
addrs[i]->addrtype = atype;
addrs[i]->length = addrlen;
addrs[i]->contents = malloc(addrs[i]->length);
if (!addrs[i]->contents) {
retval = ENOMEM;
goto errout;
}
memcpy (addrs[i]->contents, ptr, addrs[i]->length);
i++;
}
*ret_addrs = addrs;
if (ai)
freeaddrinfo(ai);
return 0;
errout:
if (addrs) {
for (i = 0; addrs[i]; i++) {
free (addrs[i]->contents);
free (addrs[i]);
}
krb5_free_addresses(context, addrs);
}
if (ai)
freeaddrinfo(ai);
return retval;
}