struct hostent *(*_libc_gethostbyname)(const char *name);
#ifdef HAVE_GETHOSTBYNAME2 /* GNU extension */
struct hostent *(*_libc_gethostbyname2)(const char *name, int af);
+#endif
+#ifdef HAVE_GETHOSTBYNAME2_R /* GNU extension */
+ int (*_libc_gethostbyname2_r)(const char *name,
+ int af,
+ struct hostent *ret,
+ char *buf,
+ size_t buflen,
+ struct hostent **result,
+ int *h_errnop);
#endif
struct hostent *(*_libc_gethostbyaddr)(const void *addr, socklen_t len, int type);
NSS_STATUS (*_nss_getgrent_r)(struct group *result, char *buffer,
size_t buflen, int *errnop);
NSS_STATUS (*_nss_endgrent)(void);
+ NSS_STATUS (*_nss_gethostbyaddr_r)(const void *addr, socklen_t addrlen,
+ int af, struct hostent *result,
+ char *buffer, size_t buflen,
+ int *errnop, int *h_errnop);
+ NSS_STATUS (*_nss_gethostbyname2_r)(const char *name, int af,
+ struct hostent *result,
+ char *buffer, size_t buflen,
+ int *errnop, int *h_errnop);
};
struct nwrap_backend {
struct nwrap_module_nss_fns *fns;
};
+struct nwrap_vector;
+
struct nwrap_ops {
struct passwd * (*nw_getpwnam)(struct nwrap_backend *b,
const char *name);
struct group *grdst, char *buf,
size_t buflen, struct group **grdstp);
void (*nw_endgrent)(struct nwrap_backend *b);
+ struct hostent *(*nw_gethostbyaddr)(struct nwrap_backend *b,
+ const void *addr,
+ socklen_t len, int type);
+ struct hostent *(*nw_gethostbyname)(struct nwrap_backend *b,
+ const char *name);
+ struct hostent *(*nw_gethostbyname2)(struct nwrap_backend *b,
+ const char *name, int af);
+ int (*nw_gethostbyname2_r)(struct nwrap_backend *b,
+ const char *name, int af,
+ struct hostent *hedst,
+ char *buf, size_t buflen,
+ struct hostent **hedstp);
};
/* Public prototypes */
struct group *grdst, char *buf,
size_t buflen, struct group **grdstp);
static void nwrap_files_endgrent(struct nwrap_backend *b);
+static struct hostent *nwrap_files_gethostbyaddr(struct nwrap_backend *b,
+ const void *addr,
+ socklen_t len, int type);
+static struct hostent *nwrap_files_gethostbyname(struct nwrap_backend *b,
+ const char *name);
+#ifdef HAVE_GETHOSTBYNAME2
+static struct hostent *nwrap_files_gethostbyname2(struct nwrap_backend *b,
+ const char *name, int af);
+#endif /* HAVE_GETHOSTBYNAME2 */
+static int nwrap_files_gethostbyname2_r(struct nwrap_backend *b,
+ const char *name, int af,
+ struct hostent *hedst,
+ char *buf, size_t buflen,
+ struct hostent **hedstp);
/* prototypes for module backend */
static void nwrap_module_endgrent(struct nwrap_backend *b);
static int nwrap_module_initgroups(struct nwrap_backend *b,
const char *user, gid_t group);
+static struct hostent *nwrap_module_gethostbyaddr(struct nwrap_backend *b,
+ const void *addr,
+ socklen_t len, int type);
+static struct hostent *nwrap_module_gethostbyname(struct nwrap_backend *b,
+ const char *name);
+static struct hostent *nwrap_module_gethostbyname2(struct nwrap_backend *b,
+ const char *name, int af);
+static int nwrap_module_gethostbyname2_r(struct nwrap_backend *b,
+ const char *name, int af,
+ struct hostent *hedst,
+ char *buf, size_t buflen,
+ struct hostent **hedstp);
struct nwrap_ops nwrap_files_ops = {
.nw_getpwnam = nwrap_files_getpwnam,
.nw_getgrent = nwrap_files_getgrent,
.nw_getgrent_r = nwrap_files_getgrent_r,
.nw_endgrent = nwrap_files_endgrent,
+ .nw_gethostbyaddr = nwrap_files_gethostbyaddr,
+ .nw_gethostbyname = nwrap_files_gethostbyname,
+#ifdef HAVE_GETHOSTBYNAME2
+ .nw_gethostbyname2 = nwrap_files_gethostbyname2,
+#endif /* HAVE_GETHOSTBYNAME2 */
+ .nw_gethostbyname2_r = nwrap_files_gethostbyname2_r,
};
struct nwrap_ops nwrap_module_ops = {
.nw_getgrent = nwrap_module_getgrent,
.nw_getgrent_r = nwrap_module_getgrent_r,
.nw_endgrent = nwrap_module_endgrent,
+ .nw_gethostbyaddr = nwrap_module_gethostbyaddr,
+ .nw_gethostbyname = nwrap_module_gethostbyname,
+ .nw_gethostbyname2 = nwrap_module_gethostbyname2,
+ .nw_gethostbyname2_r = nwrap_module_gethostbyname2_r,
};
struct nwrap_libc {
};
struct nwrap_main {
- int num_backends;
+ size_t num_backends;
struct nwrap_backend *backends;
struct nwrap_libc *libc;
};
}
#endif
+#ifdef HAVE_GETHOSTBYNAME2_R /* GNU extension */
+static int libc_gethostbyname2_r(const char *name,
+ int af,
+ struct hostent *ret,
+ char *buf,
+ size_t buflen,
+ struct hostent **result,
+ int *h_errnop)
+{
+ nwrap_load_lib_function(NWRAP_LIBNSL, gethostbyname2_r);
+
+ return nwrap_main_global->libc->fns->_libc_gethostbyname2_r(name,
+ af,
+ ret,
+ buf,
+ buflen,
+ result,
+ h_errnop);
+}
+#endif
+
static struct hostent *libc_gethostbyaddr(const void *addr,
socklen_t len,
int type)
static void *nwrap_load_module_fn(struct nwrap_backend *b,
const char *fn_name)
{
- void *res;
- char *s;
+ void *res = NULL;
+ char *s = NULL;
+ int rc;
- if (!b->so_handle) {
+ if (b->so_handle == NULL) {
NWRAP_LOG(NWRAP_LOG_ERROR, "No handle");
return NULL;
}
- if (asprintf(&s, "_nss_%s_%s", b->name, fn_name) == -1) {
+ rc = asprintf(&s, "_nss_%s_%s", b->name, fn_name);
+ if (rc == -1) {
NWRAP_LOG(NWRAP_LOG_ERROR, "Out of memory");
return NULL;
}
res = dlsym(b->so_handle, s);
- if (!res) {
- NWRAP_LOG(NWRAP_LOG_ERROR,
+ if (res == NULL) {
+ NWRAP_LOG(NWRAP_LOG_WARN,
"Cannot find function %s in %s",
s, b->so_path);
}
nwrap_load_module_fn(b, "getgrent_r");
*(void **)(&fns->_nss_endgrent) =
nwrap_load_module_fn(b, "endgrent");
+ *(void **)(&fns->_nss_gethostbyaddr_r) =
+ nwrap_load_module_fn(b, "gethostbyaddr_r");
+ *(void **)(&fns->_nss_gethostbyname2_r) =
+ nwrap_load_module_fn(b, "gethostbyname2_r");
return fns;
}
static bool nwrap_module_init(const char *name,
struct nwrap_ops *ops,
const char *so_path,
- int *num_backends,
+ size_t *num_backends,
struct nwrap_backend **backends)
{
struct nwrap_backend *b;
}
/* hosts functions */
-static int nwrap_files_gethostbyname(const char *name, int af,
- struct hostent *result,
- struct nwrap_vector *addr_list)
+static int nwrap_files_internal_gethostbyname(const char *name, int af,
+ struct hostent *result,
+ struct nwrap_vector *addr_list)
{
struct nwrap_entlist *el;
struct hostent *he;
bool he_found = false;
bool ok;
+ /*
+ * We need to make sure we have zeroed return pointer for consumers
+ * which don't check return values, e.g. OpenLDAP.
+ */
+ ZERO_STRUCTP(result);
+
ok = nwrap_files_cache_reload(nwrap_he_global.cache);
if (!ok) {
NWRAP_LOG(NWRAP_LOG_ERROR, "error loading hosts file");
return -1;
}
-#ifdef HAVE_GETHOSTBYNAME_R
-static int nwrap_gethostbyname_r(const char *name,
- struct hostent *ret,
- char *buf, size_t buflen,
- struct hostent **result, int *h_errnop)
+static int nwrap_files_gethostbyname2_r(struct nwrap_backend *b,
+ const char *name, int af,
+ struct hostent *hedst,
+ char *buf, size_t buflen,
+ struct hostent **hedstp)
{
- struct nwrap_vector *addr_list = malloc(sizeof(struct nwrap_vector));
+ struct nwrap_vector *addr_list = NULL;
union {
char *ptr;
char **list;
} g;
int rc;
+ (void) b; /* unused */
+ (void) af; /* unused */
+
+ if (name == NULL || hedst == NULL || buf == NULL || buflen == 0) {
+ errno = EINVAL;
+ return -1;
+ }
+ *hedstp = NULL;
+ buf[0] = '\0';
+
+ addr_list = calloc(1, sizeof(struct nwrap_vector));
if (addr_list == NULL) {
NWRAP_LOG(NWRAP_LOG_ERROR,
"Unable to allocate memory for address list");
return -1;
}
- ZERO_STRUCTP(addr_list);
-
- rc = nwrap_files_gethostbyname(name, AF_UNSPEC, ret, addr_list);
+ rc = nwrap_files_internal_gethostbyname(name, af, hedst,
+ addr_list);
if (rc == -1) {
- *h_errnop = h_errno;
- if (addr_list->items != NULL) {
- free(addr_list->items);
- }
+ SAFE_FREE(addr_list->items);
SAFE_FREE(addr_list);
errno = ENOENT;
return -1;
}
- if (buflen < (addr_list->count * sizeof(void *))) {
+ /* +1 i for ending NULL pointer */
+ if (buflen < ((addr_list->count + 1) * sizeof(void *))) {
SAFE_FREE(addr_list->items);
SAFE_FREE(addr_list);
return ERANGE;
* +1 is for ending NULL pointer. */
memcpy(buf, addr_list->items, (addr_list->count + 1) * sizeof(void *));
- free(addr_list->items);
- free(addr_list);
+ SAFE_FREE(addr_list->items);
+ SAFE_FREE(addr_list);
g.ptr = buf;
- ret->h_addr_list = g.list;
- *result = ret;
+ hedst->h_addr_list = g.list;
+ *hedstp = hedst;
return 0;
}
+#ifdef HAVE_GETHOSTBYNAME_R
+static int nwrap_gethostbyname_r(const char *name,
+ struct hostent *ret,
+ char *buf, size_t buflen,
+ struct hostent **result, int *h_errnop)
+{
+ int rc;
+ size_t i;
+
+ for (i=0; i < nwrap_main_global->num_backends; i++) {
+ struct nwrap_backend *b = &nwrap_main_global->backends[i];
+ rc = b->ops->nw_gethostbyname2_r(b, name, AF_UNSPEC, ret,
+ buf, buflen, result);
+ if (rc == 0) {
+ return 0;
+ } else if (rc == ERANGE) {
+ return ERANGE;
+ }
+ }
+ *h_errnop = h_errno;
+ return ENOENT;
+}
+
int gethostbyname_r(const char *name,
struct hostent *ret,
char *buf, size_t buflen,
}
#endif
+#ifdef HAVE_GETHOSTBYNAME2_R
+static int nwrap_gethostbyname2_r(const char *name, int af,
+ struct hostent *ret,
+ char *buf, size_t buflen,
+ struct hostent **result, int *h_errnop)
+{
+ int rc;
+ size_t i;
+
+ for (i=0; i < nwrap_main_global->num_backends; i++) {
+ struct nwrap_backend *b = &nwrap_main_global->backends[i];
+ rc = b->ops->nw_gethostbyname2_r(b, name, af, ret,
+ buf, buflen, result);
+ if (rc == 0) {
+ return 0;
+ } else if (rc == ERANGE) {
+ return ERANGE;
+ }
+ }
+ *h_errnop = h_errno;
+ return ENOENT;
+}
+
+int gethostbyname2_r(const char *name, int af,
+ struct hostent *ret,
+ char *buf, size_t buflen,
+ struct hostent **result, int *h_errnop)
+{
+ if (!nss_wrapper_hosts_enabled()) {
+ return libc_gethostbyname2_r(name, af, ret, buf, buflen,
+ result, h_errnop);
+ }
+
+ return nwrap_gethostbyname2_r(name, af, ret, buf, buflen, result,
+ h_errnop);
+}
+#endif
+
static int nwrap_files_getaddrinfo(const char *name,
unsigned short port,
const struct addrinfo *hints,
return rc;
}
-static struct hostent *nwrap_files_gethostbyaddr(const void *addr,
+static struct hostent *nwrap_files_gethostbyaddr(struct nwrap_backend *b,
+ const void *addr,
socklen_t len, int type)
{
struct hostent *he;
size_t i;
bool ok;
+ (void) b; /* unused */
(void) len; /* unused */
ok = nwrap_files_cache_reload(nwrap_he_global.cache);
char *buf, size_t buflen,
struct hostent **result, int *h_errnop)
{
- *result = nwrap_files_gethostbyaddr(addr, len, type);
+ size_t i;
+ for (i=0; i < nwrap_main_global->num_backends; i++) {
+ struct nwrap_backend *b = &nwrap_main_global->backends[i];
+ *result = b->ops->nw_gethostbyaddr(b, addr, len, type);
+ if (*result != NULL) {
+ break;
+ }
+ }
+
if (*result != NULL) {
memset(buf, '\0', buflen);
*ret = **result;
return 0;
- } else {
- *h_errnop = h_errno;
- return -1;
}
+
+ *h_errnop = h_errno;
+ return -1;
}
int gethostbyaddr_r(const void *addr, socklen_t len, int type,
b->fns->_nss_endgrent();
}
+static struct hostent *nwrap_module_gethostbyaddr(struct nwrap_backend *b,
+ const void *addr,
+ socklen_t len, int type)
+{
+ static struct hostent he;
+ static char *buf = NULL;
+ static size_t buflen = 1000;
+ NSS_STATUS status;
+
+ if (b->fns->_nss_gethostbyaddr_r == NULL) {
+ return NULL;
+ }
+
+ if (buf == NULL) {
+ buf = (char *)malloc(buflen);
+ if (buf == NULL) {
+ return NULL;
+ }
+ }
+again:
+ status = b->fns->_nss_gethostbyaddr_r(addr, len, type, &he,
+ buf, buflen, &errno, &h_errno);
+ if (status == NSS_STATUS_TRYAGAIN) {
+ char *p = NULL;
+
+ buflen *= 2;
+ p = (char *)realloc(buf, buflen);
+ if (p == NULL) {
+ SAFE_FREE(buf);
+ return NULL;
+ }
+ buf = p;
+ goto again;
+ }
+ if (status == NSS_STATUS_NOTFOUND) {
+ SAFE_FREE(buf);
+ return NULL;
+ }
+ if (status != NSS_STATUS_SUCCESS) {
+ SAFE_FREE(buf);
+ return NULL;
+ }
+
+ return &he;
+}
+
+static int nwrap_module_gethostbyname2_r(struct nwrap_backend *b,
+ const char *name, int af,
+ struct hostent *hedst,
+ char *buf, size_t buflen,
+ struct hostent **hedstp)
+{
+ NSS_STATUS status;
+
+ *hedstp = NULL;
+
+ if (b->fns->_nss_gethostbyname2_r == NULL) {
+ return ENOENT;
+ }
+
+ status = b->fns->_nss_gethostbyname2_r(name, af, hedst,
+ buf, buflen, &errno, &h_errno);
+ switch (status) {
+ case NSS_STATUS_SUCCESS:
+ *hedstp = hedst;
+ return 0;
+ case NSS_STATUS_NOTFOUND:
+ if (errno != 0) {
+ return errno;
+ }
+ return ENOENT;
+ case NSS_STATUS_TRYAGAIN:
+ if (errno != 0) {
+ return errno;
+ }
+ return ERANGE;
+ default:
+ if (errno != 0) {
+ return errno;
+ }
+ return status;
+ }
+}
+
+static struct hostent *nwrap_module_gethostbyname(struct nwrap_backend *b,
+ const char *name)
+{
+ static struct hostent he;
+ static char *buf = NULL;
+ static size_t buflen = 1000;
+ NSS_STATUS status;
+
+ if (b->fns->_nss_gethostbyname2_r == NULL) {
+ return NULL;
+ }
+
+ if (buf == NULL) {
+ buf = (char *)malloc(buflen);
+ if (buf == NULL) {
+ return NULL;
+ }
+ }
+
+again:
+ status = b->fns->_nss_gethostbyname2_r(name, AF_UNSPEC, &he,
+ buf, buflen, &errno, &h_errno);
+ if (status == NSS_STATUS_TRYAGAIN) {
+ char *p = NULL;
+
+ buflen *= 2;
+ p = (char *)realloc(buf, buflen);
+ if (p == NULL) {
+ SAFE_FREE(buf);
+ return NULL;
+ }
+ buf = p;
+ goto again;
+ }
+ if (status == NSS_STATUS_NOTFOUND) {
+ SAFE_FREE(buf);
+ return NULL;
+ }
+ if (status != NSS_STATUS_SUCCESS) {
+ SAFE_FREE(buf);
+ return NULL;
+ }
+
+ return &he;
+}
+
+static struct hostent *nwrap_module_gethostbyname2(struct nwrap_backend *b,
+ const char *name, int af)
+{
+ static struct hostent he;
+ static char *buf = NULL;
+ static size_t buflen = 1000;
+ NSS_STATUS status;
+
+ if (b->fns->_nss_gethostbyname2_r == NULL) {
+ return NULL;
+ }
+
+ if (buf == NULL) {
+ buf = (char *)malloc(buflen);
+ if (buf == NULL) {
+ return NULL;
+ }
+ }
+
+again:
+ status = b->fns->_nss_gethostbyname2_r(name, af, &he,
+ buf, buflen, &errno, &h_errno);
+ if (status == NSS_STATUS_TRYAGAIN) {
+ char *p = NULL;
+
+ buflen *= 2;
+ p = (char *)realloc(buf, buflen);
+ if (p == NULL) {
+ SAFE_FREE(buf);
+ return NULL;
+ }
+ buf = p;
+ goto again;
+ }
+ if (status == NSS_STATUS_NOTFOUND) {
+ SAFE_FREE(buf);
+ return NULL;
+ }
+ if (status != NSS_STATUS_SUCCESS) {
+ SAFE_FREE(buf);
+ return NULL;
+ }
+
+ return &he;
+}
+
/****************************************************************************
* GETPWNAM
***************************************************************************/
static struct passwd *nwrap_getpwnam(const char *name)
{
- int i;
+ size_t i;
struct passwd *pwd;
for (i=0; i < nwrap_main_global->num_backends; i++) {
static int nwrap_getpwnam_r(const char *name, struct passwd *pwdst,
char *buf, size_t buflen, struct passwd **pwdstp)
{
- int i,ret;
+ size_t i;
+ int ret;
for (i=0; i < nwrap_main_global->num_backends; i++) {
struct nwrap_backend *b = &nwrap_main_global->backends[i];
static struct passwd *nwrap_getpwuid(uid_t uid)
{
- int i;
+ size_t i;
struct passwd *pwd;
for (i=0; i < nwrap_main_global->num_backends; i++) {
static int nwrap_getpwuid_r(uid_t uid, struct passwd *pwdst,
char *buf, size_t buflen, struct passwd **pwdstp)
{
- int i,ret;
+ size_t i;
+ int ret;
for (i=0; i < nwrap_main_global->num_backends; i++) {
struct nwrap_backend *b = &nwrap_main_global->backends[i];
static void nwrap_setpwent(void)
{
- int i;
+ size_t i;
for (i=0; i < nwrap_main_global->num_backends; i++) {
struct nwrap_backend *b = &nwrap_main_global->backends[i];
static struct passwd *nwrap_getpwent(void)
{
- int i;
+ size_t i;
struct passwd *pwd;
for (i=0; i < nwrap_main_global->num_backends; i++) {
static int nwrap_getpwent_r(struct passwd *pwdst, char *buf,
size_t buflen, struct passwd **pwdstp)
{
- int i,ret;
+ size_t i;
+ int ret;
for (i=0; i < nwrap_main_global->num_backends; i++) {
struct nwrap_backend *b = &nwrap_main_global->backends[i];
static void nwrap_endpwent(void)
{
- int i;
+ size_t i;
for (i=0; i < nwrap_main_global->num_backends; i++) {
struct nwrap_backend *b = &nwrap_main_global->backends[i];
static int nwrap_initgroups(const char *user, gid_t group)
{
- int i;
+ size_t i;
for (i=0; i < nwrap_main_global->num_backends; i++) {
struct nwrap_backend *b = &nwrap_main_global->backends[i];
static struct group *nwrap_getgrnam(const char *name)
{
- int i;
+ size_t i;
struct group *grp;
for (i=0; i < nwrap_main_global->num_backends; i++) {
static int nwrap_getgrnam_r(const char *name, struct group *grdst,
char *buf, size_t buflen, struct group **grdstp)
{
- int i, ret;
+ size_t i;
+ int ret;
for (i=0; i < nwrap_main_global->num_backends; i++) {
struct nwrap_backend *b = &nwrap_main_global->backends[i];
static struct group *nwrap_getgrgid(gid_t gid)
{
- int i;
+ size_t i;
struct group *grp;
for (i=0; i < nwrap_main_global->num_backends; i++) {
static int nwrap_getgrgid_r(gid_t gid, struct group *grdst,
char *buf, size_t buflen, struct group **grdstp)
{
- int i,ret;
+ size_t i;
+ int ret;
for (i=0; i < nwrap_main_global->num_backends; i++) {
struct nwrap_backend *b = &nwrap_main_global->backends[i];
static void nwrap_setgrent(void)
{
- int i;
+ size_t i;
for (i=0; i < nwrap_main_global->num_backends; i++) {
struct nwrap_backend *b = &nwrap_main_global->backends[i];
static struct group *nwrap_getgrent(void)
{
- int i;
+ size_t i;
struct group *grp;
for (i=0; i < nwrap_main_global->num_backends; i++) {
static int nwrap_getgrent_r(struct group *grdst, char *buf,
size_t buflen, struct group **grdstp)
{
- int i,ret;
+ size_t i;
+ int ret;
for (i=0; i < nwrap_main_global->num_backends; i++) {
struct nwrap_backend *b = &nwrap_main_global->backends[i];
static void nwrap_endgrent(void)
{
- int i;
+ size_t i;
for (i=0; i < nwrap_main_global->num_backends; i++) {
struct nwrap_backend *b = &nwrap_main_global->backends[i];
}
#endif /* HAVE_SOLARIS_ENDHOSTENT */
+
#ifdef BSD
/* BSD implementation stores data in thread local storage but GLIBC does not */
static __thread struct hostent user_he;
static struct hostent user_he;
static struct nwrap_vector user_addrlist;
#endif /* BSD */
+
+static struct hostent *nwrap_files_gethostbyname(struct nwrap_backend *b,
+ const char *name)
+{
+ int ret;
+
+ (void) b; /* unused */
+
+ ret = nwrap_files_internal_gethostbyname(name, AF_UNSPEC, &user_he,
+ &user_addrlist);
+ if (ret == 0) {
+ return &user_he;
+ }
+
+ return NULL;
+}
+
static struct hostent *nwrap_gethostbyname(const char *name)
{
- if (nwrap_files_gethostbyname(name, AF_UNSPEC, &user_he, &user_addrlist) == -1) {
- return NULL;
+ size_t i;
+ struct hostent *he = NULL;
+
+ for (i=0; i < nwrap_main_global->num_backends; i++) {
+ struct nwrap_backend *b = &nwrap_main_global->backends[i];
+ he = b->ops->nw_gethostbyname(b, name);
+ if (he != NULL) {
+ return he;
+ }
}
- return &user_he;
+
+ return NULL;
}
struct hostent *gethostbyname(const char *name)
static struct hostent user_he2;
static struct nwrap_vector user_addrlist2;
#endif /* BSD */
+
+static struct hostent *nwrap_files_gethostbyname2(struct nwrap_backend *b,
+ const char *name, int af)
+{
+ int ret;
+
+ (void) b; /* unused */
+
+ ret = nwrap_files_internal_gethostbyname(name, af, &user_he2,
+ &user_addrlist2);
+ if (ret == 0) {
+ return &user_he2;
+ }
+
+ return NULL;
+}
+
static struct hostent *nwrap_gethostbyname2(const char *name, int af)
{
- if (nwrap_files_gethostbyname(name, af, &user_he2, &user_addrlist2) == -1) {
- return NULL;
+ size_t i;
+ struct hostent *he = NULL;
+
+ for (i=0; i < nwrap_main_global->num_backends; i++) {
+ struct nwrap_backend *b = &nwrap_main_global->backends[i];
+ he = b->ops->nw_gethostbyname2(b, name, af);
+ if (he != NULL) {
+ return he;
+ }
}
- return &user_he2;
+
+ return NULL;
}
struct hostent *gethostbyname2(const char *name, int af)
static struct hostent *nwrap_gethostbyaddr(const void *addr,
socklen_t len, int type)
{
- return nwrap_files_gethostbyaddr(addr, len, type);
+ size_t i;
+ struct hostent *he = NULL;
+
+ for (i=0; i < nwrap_main_global->num_backends; i++) {
+ struct nwrap_backend *b = &nwrap_main_global->backends[i];
+ he = b->ops->nw_gethostbyaddr(b, addr, len, type);
+ if (he != NULL) {
+ return he;
+ }
+ }
+
+ return NULL;
}
struct hostent *gethostbyaddr(const void *addr,
socklen_t addrlen;
uint16_t port;
sa_family_t type;
+ size_t i;
if (sa == NULL || salen < sizeof(sa_family_t)) {
return EAI_FAMILY;
if (host != NULL) {
he = NULL;
if ((flags & NI_NUMERICHOST) == 0) {
- he = nwrap_files_gethostbyaddr(addr, addrlen, type);
+ for (i=0; i < nwrap_main_global->num_backends; i++) {
+ struct nwrap_backend *b = &nwrap_main_global->backends[i];
+ he = b->ops->nw_gethostbyaddr(b, addr, addrlen, type);
+ if (he != NULL) {
+ break;
+ }
+ }
if ((flags & NI_NAMEREQD) && (he == NULL || he->h_name == NULL))
return EAI_NONAME;
}
*/
void nwrap_destructor(void)
{
- int i;
+ size_t i;
NWRAP_LOCK_ALL;
if (nwrap_main_global != NULL) {
git.samba.org / samba.git / blobdiff