int
main(int argc, char **argv)
{
int r;
int64_t res;
struct hdfs_object *exception = NULL, *dl;
r = sasl_client_init(NULL);
if (r != SASL_OK) {
fprintf(stderr, "Error initializing sasl: %d\n", r);
return -1;
}
if (argc > 1) {
if (strcmp(argv[1], "-h") == 0) {
printf("Usage: ./kerb [host [port [kerb_principal]]]\n");
exit(0);
}
host = argv[1];
if (argc > 2) {
port = argv[2];
if (argc > 3) {
user = argv[3];
}
}
}
h = hdfs_namenode_new(host, port, user, HDFS_REQUIRE_KERB, &err);
if (!h)
goto out;
res = hdfs_getProtocolVersion(h, HADOOFUS_CLIENT_PROTOCOL_STR, 61L,
&exception);
if (exception) {
err = exception->ob_val._exception._msg;
goto out;
}
if (res != 61)
fprintf(stderr, "protocol version != 61: %zd\n", (intmax_t)res);
else
fprintf(stderr, "success\n");
dl = hdfs_getListing(h, "/", NULL, &exception);
if (exception) {
err = exception->ob_val._exception._msg;
goto out;
}
hdfs_object_free(dl);
fprintf(stderr, "dl: success\n");
out:
if (err)
fprintf(stderr, "hadoofus error: %s\n", err);
if (h)
hdfs_namenode_delete(h);
sasl_done();
return 0;
}
/**
* hdfsConnectAsUser - Connect to a hdfs file system as a specific user
*
* @param host A string containing either a host name, or an ip address
* of the namenode of a hdfs cluster.
* @param port The port on which the server is listening.
* @param user the user name (this is hadoop domain user).
* @return Returns a handle to the filesystem or NULL on error.
*/
hdfsFS
hdfsConnectAsUser(const char* host, tPort port, const char *user)
{
const char *err = NULL;
char sport[40];
bool port_set = false;
struct hdfs_namenode *nn;
struct hdfsFS_internal *res;
if (!host || !strcmp(host, "default")) {
char *e_port;
host = getenv("HDFS_DEFAULT_HOST");
e_port = getenv("HDFS_DEFAULT_PORT");
if (!host) {
ERR(EINVAL, "Set HDFS_DEFAULT_HOST if you want NULL"
"/\"default\" to work with libhadoofus");
return NULL;
}
if (e_port) {
strncpy(sport, e_port, nelem(sport));
sport[nelem(sport)-1] = '\0';
port_set = true;
} else {
port = 8020;
}
}
if (!port_set)
sprintf(sport, "%d", port);
nn = hdfs_namenode_new(host, sport, user, HDFS_NO_KERB, &err);
if (!nn) {
ERR(ECONNABORTED, "%s", err);
return NULL;
}
res = malloc(sizeof *res);
assert(res);
res->fs_namenode = nn;
res->fs_cwd = _makehome(user);
// libhdfs is a sad, sad API. My hands are tied. (All filenames, at
// least for directory listings, need to be in the form:
// dfs://<host>:<port>//path/to/file
// ^ Yes, that is two slashes.
//
// fuse_dfs depends on this naming scheme.
res->fs_uri = malloc(strlen("dfs://") + strlen(host) + 1 + strlen(sport) + 2);
assert(res->fs_uri);
strcpy(res->fs_uri, "dfs://");
strcat(res->fs_uri, host);
strcat(res->fs_uri, ":");
strcat(res->fs_uri, sport);
strcat(res->fs_uri, "/");
return (hdfsFS)res;
}
static void
setup(void)
{
const char *err = NULL;
h = hdfs_namenode_new(H_ADDR, "8020", H_USER, HDFS_NO_KERB, &err);
ck_assert_msg((intptr_t)h, "Could not connect to %s=%s (port 8020): %s",
HDFS_T_ENV, H_ADDR, err);
}
int
main(int argc, char **argv)
{
int64_t res;
struct hdfs_object *exception = NULL;
if (argc > 1) {
if (strcmp(argv[1], "-h") == 0) {
printf("Usage: ./hl-hello [host [port [user]]]\n");
exit(0);
}
host = argv[1];
if (argc > 2) {
port = argv[2];
if (argc > 3) {
user = argv[3];
}
}
}
h = hdfs_namenode_new(host, port, user, HDFS_NO_KERB, &error);
if (!h)
goto out;
res = hdfs_getProtocolVersion(h, HADOOFUS_CLIENT_PROTOCOL_STR, 61L,
&exception);
if (exception) {
error = exception->ob_val._exception._msg;
goto out;
}
if (res != 61)
fprintf(stderr, "protocol version != 61: %zd\n", (intmax_t)res);
else
fprintf(stderr, "success\n");
out:
if (error)
fprintf(stderr, "hadoofus error: %s\n", error);
if (h)
hdfs_namenode_delete(h);
return 0;
}
static void
setup_buf(void)
{
const char *err = NULL;
buf = malloc(towrite);
ck_assert((intptr_t)buf);
rbuf = malloc(towrite);
ck_assert((intptr_t)rbuf);
for (int i = 0; i < towrite; i++) {
buf[i] = '0' + (i%10);
rbuf[i] = 0;
}
h = hdfs_namenode_new(H_ADDR, "8020", H_USER, HDFS_NO_KERB, &err);
ck_assert_msg((intptr_t)h, "Could not connect to %s=%s (port 8020): %s",
HDFS_T_ENV, H_ADDR, err);
}
