#include "nss-util.h"
#include "util.h"
-/* Ensure that glibc's assert is used. We cannot use assert from macro.h, as
- * libnss_myhostname will be linked into arbitrary programs which will, in turn
- * attempt to write to the journal via log_dispatch() */
-#include <assert.h>
-
/* We use 127.0.0.2 as IPv4 address. This has the advantage over
* 127.0.0.1 that it can be translated back to the local hostname. For
* IPv6 we use ::1 which unfortunately will not translate back to the
return NSS_STATUS_NOTFOUND;
}
- n_addresses = local_addresses(&addresses);
+ n_addresses = local_addresses(NULL, 0, &addresses);
if (n_addresses < 0)
n_addresses = 0;
if (ttlp)
*ttlp = 0;
+ /* Explicitly reset all error variables */
+ *errnop = 0;
+ *h_errnop = NETDB_SUCCESS;
+ h_errno = 0;
+
return NSS_STATUS_SUCCESS;
}
int32_t *ttlp,
char **canonp) {
- size_t l_canonical, l_additional, idx, ms;
+ size_t l_canonical, l_additional, idx, ms, alen;
char *r_addr, *r_name, *r_aliases, *r_alias = NULL, *r_addr_list;
- size_t alen;
struct local_address *a;
unsigned n, c;
assert(errnop);
assert(h_errnop);
- alen = PROTO_ADDRESS_SIZE(af);
+ alen = FAMILY_ADDRESS_SIZE(af);
for (a = addresses, n = 0, c = 0; n < n_addresses; a++, n++)
if (af == a->family)
(additional ? ALIGN(l_additional+1) : 0) +
sizeof(char*) +
(additional ? sizeof(char*) : 0) +
- (c > 0 ? c : 1) * ALIGN(alen)+
+ (c > 0 ? c : 1) * ALIGN(alen) +
(c > 0 ? c+1 : 2) * sizeof(char*);
if (buflen < ms) {
/* Fourth, add address pointer array */
r_addr_list = buffer + idx;
if (c > 0) {
- unsigned i = 0;
+ unsigned i;
- for (a = addresses, n = 0; n < n_addresses; a++, n++) {
- if (af != a->family)
- continue;
+ for (i = 0; i < c; i++)
+ ((char**) r_addr_list)[i] = r_addr + i*ALIGN(alen);
- ((char**) r_addr_list)[i] = (r_addr + i*ALIGN(alen));
- i++;
- }
-
- assert(i == c);
- ((char**) r_addr_list)[c] = NULL;
- idx += (c+1)*sizeof(char*);
+ ((char**) r_addr_list)[i] = NULL;
+ idx += (c+1) * sizeof(char*);
} else {
((char**) r_addr_list)[0] = r_addr;
((char**) r_addr_list)[1] = NULL;
- idx += 2*sizeof(char*);
+ idx += 2 * sizeof(char*);
}
/* Verify the size matches */
if (canonp)
*canonp = r_name;
+ /* Explicitly reset all error variables */
+ *errnop = 0;
+ *h_errnop = NETDB_SUCCESS;
+ h_errno = 0;
+
return NSS_STATUS_SUCCESS;
}
return NSS_STATUS_NOTFOUND;
}
- n_addresses = local_addresses(&addresses);
+ n_addresses = local_addresses(NULL, 0, &addresses);
if (n_addresses < 0)
n_addresses = 0;
assert(errnop);
assert(h_errnop);
- if (len != PROTO_ADDRESS_SIZE(af)) {
+ if (!IN_SET(af, AF_INET, AF_INET6)) {
+ *errnop = EAFNOSUPPORT;
+ *h_errnop = NO_DATA;
+ return NSS_STATUS_UNAVAIL;
+ }
+
+ if (len != FAMILY_ADDRESS_SIZE(af)) {
*errnop = EINVAL;
*h_errnop = NO_RECOVERY;
return NSS_STATUS_UNAVAIL;
goto found;
}
- } else if (af == AF_INET6) {
+ } else {
+ assert(af == AF_INET6);
if (memcmp(addr, LOCALADDRESS_IPV6, 16) == 0) {
additional = "localhost";
goto found;
}
- } else {
- *errnop = EAFNOSUPPORT;
- *h_errnop = NO_DATA;
- return NSS_STATUS_UNAVAIL;
}
- n_addresses = local_addresses(&addresses);
+ n_addresses = local_addresses(NULL, 0, &addresses);
if (n_addresses < 0)
n_addresses = 0;
if (af != a->family)
continue;
- if (memcmp(addr, &a->address, PROTO_ADDRESS_SIZE(af)) == 0)
+ if (memcmp(addr, &a->address, FAMILY_ADDRESS_SIZE(af)) == 0)
goto found;
}