label_test.c revision 18c2aff776a775d34a4c9893a4c72e0434d68e36
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1994 by Sun Microsystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "vold.h"
/*
* This is the "test" label. It is just a hack that will grow, change
* and serve as the example "label" interface.
*/
static char *test_key(label *);
static bool_t test_compare(label *, label *);
static enum laread_res test_read(int, label *, struct devs *);
static void test_setup(vol_t *);
static void test_xdr(label *, enum xdr_op, void **);
#define TEST_SIZE 12
static struct label_loc test_labelloc = {0, TEST_SIZE};
static struct labsw testlabsw = {
test_key, /* l_key */
test_compare, /* l_compare */
test_read, /* l_read */
NULL, /* l_write */
test_setup, /* l_setup */
test_xdr, /* l_xdr */
TEST_SIZE, /* l_size */
TEST_SIZE, /* l_xdrsize */ /* not normal */
TEST_LTYPE, /* l_ident */
1, /* l_nll */
&test_labelloc, /* l_ll */
};
bool_t
label_init()
{
info("label_test: init\n");
label_new(&testlabsw);
return (TRUE);
}
/*ARGSUSED*/
static enum laread_res
test_read(int fd, label *la, struct devs *dp)
{
int err;
#ifdef notdef
printf("test_read: %s\n", dp->dp_path);
#endif
(void) lseek(fd, 0, SEEK_SET);
la->l_label = (void *)malloc(TEST_SIZE);
if ((err = read(fd, la->l_label, TEST_SIZE)) < 0) {
goto errout;
}
if (err != TEST_SIZE) { /* short read */
errno = EIO;
goto errout;
}
return (L_FOUND);
errout:
free(la->l_label);
la->l_label = 0;
return (L_ERROR);
}
static char *
test_key(label *la)
{
return (makename(la->l_label, TEST_SIZE));
}
static bool_t
test_compare(label *la1, label *la2)
{
#if 0
printf("test_compare: ");
#endif
if (memcmp(la1->l_label, la2->l_label, TEST_SIZE) == 0) {
#if 0
printf("TRUE\n");
#endif
return (TRUE);
}
#if 0
printf("FALSE\n");
#endif
return (FALSE);
}
static void
test_setup(vol_t *v)
{
size_t length = (size_t) strlen(v->v_label.l_label);
if (length > TEST_SIZE) {
length = TEST_SIZE;
}
v->v_obj.o_name = makename(v->v_label.l_label, length);
}
void
test_xdr(label *l, enum xdr_op op, void **data)
{
/* yes, well I don't feel like writing xdr code right now */
if (op == XDR_ENCODE) {
*data = malloc(TEST_SIZE);
(void) memcpy(*data, l->l_label, TEST_SIZE);
} else if (op == XDR_DECODE) {
if (l->l_label != NULL) {
free(l->l_label);
}
l->l_label = malloc(TEST_SIZE);
(void) memcpy(l->l_label, *data, TEST_SIZE);
}
}