value.c revision 49dbdb0186eb23d87d685b96eaefa9ec3c71d9b8
/*
* Copyright (C) 1996-2000 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
/* $Id: value.c,v 1.7 2000/06/21 22:01:26 tale Exp $ */
/* Principal Author: Ted Lemon */
#include <config.h>
#include <isc/mem.h>
#include <isc/string.h>
#include <isc/util.h>
#include <omapi/private.h>
isc_result_t
omapi_value_create(omapi_value_t **d) {
omapi_value_t *new;
new = isc_mem_get(omapi_mctx, sizeof(*new));
if (new == NULL)
return (ISC_R_NOMEMORY);
memset(new, 0, sizeof *new);
omapi_value_reference(d, new);
return (ISC_R_SUCCESS);
}
void
omapi_value_reference(omapi_value_t **r, omapi_value_t *h) {
REQUIRE(r != NULL && h != NULL);
REQUIRE(*r == NULL);
*r = h;
h->refcnt++;
}
void
omapi_value_dereference(omapi_value_t **h) {
REQUIRE(h != NULL && *h != NULL);
REQUIRE((*h)->refcnt > 0);
if (--((*h)->refcnt) <= 0) {
if ((*h)->name != NULL)
omapi_string_dereference(&(*h)->name);
if ((*h)->value != NULL)
omapi_data_dereference(&(*h)->value);
isc_mem_put(omapi_mctx, *h, sizeof(omapi_value_t));
}
*h = NULL;
}
isc_result_t
omapi_value_storedata(omapi_value_t **vp, omapi_string_t *name,
omapi_data_t *value)
{
isc_result_t result;
result = omapi_value_create(vp);
if (result != ISC_R_SUCCESS)
return (result);
omapi_string_reference(&(*vp)->name, name);
if (value != NULL)
omapi_data_reference(&(*vp)->value, value);
return (result);
}
isc_result_t
omapi_value_storemem(omapi_value_t **vp, omapi_string_t *name,
const unsigned char *value, unsigned int len)
{
isc_result_t result;
result = omapi_value_create(vp);
if (result != ISC_R_SUCCESS)
return (result);
omapi_string_reference(&(*vp)->name, name);
if (value != NULL) {
result = omapi_data_create(&(*vp)->value,
omapi_datatype_data, len);
if (result == ISC_R_SUCCESS)
memcpy((*vp)->value->u.buffer.value, value, len);
}
if (result != ISC_R_SUCCESS)
omapi_value_dereference(vp);
return (result);
}
isc_result_t
omapi_value_storeint(omapi_value_t **vp, omapi_string_t *name, int value)
{
isc_result_t result;
result = omapi_value_create(vp);
if (result != ISC_R_SUCCESS)
return (result);
omapi_string_reference(&(*vp)->name, name);
if (value != 0) {
result = omapi_data_create(&(*vp)->value, omapi_datatype_int);
if (result == ISC_R_SUCCESS)
(*vp)->value->u.integer = value;
}
if (result != ISC_R_SUCCESS)
omapi_value_dereference(vp);
return (result);
}
isc_result_t
omapi_value_storeobject(omapi_value_t **vp, omapi_string_t *name,
omapi_object_t *value)
{
isc_result_t result;
result = omapi_value_create(vp);
if (result != ISC_R_SUCCESS)
return (result);
omapi_string_reference(&(*vp)->name, name);
if (value != NULL) {
result = omapi_data_create(&(*vp)->value, omapi_datatype_int);
if (result == ISC_R_SUCCESS)
result = object_gethandle((omapi_handle_t *)
&(*vp)->value->u.integer,
value);
}
if (result != ISC_R_SUCCESS)
omapi_value_dereference(vp);
return (result);
}
isc_result_t
omapi_value_storestr(omapi_value_t **vp, omapi_string_t *name, char *value)
{
isc_result_t result;
result = omapi_value_create(vp);
if (result != ISC_R_SUCCESS)
return (result);
omapi_string_reference(&(*vp)->name, name);
if (value != NULL)
result = omapi_data_create(&(*vp)->value,
omapi_datatype_string, value);
if (result != ISC_R_SUCCESS)
omapi_value_dereference(vp);
return (result);
}
int
omapi_value_getint(omapi_value_t *value) {
REQUIRE(value != NULL && value->value != NULL);
REQUIRE(value->value->type == omapi_datatype_int ||
((value->value->type == omapi_datatype_data ||
(value->value->type == omapi_datatype_string)) &&
value->value->u.buffer.len == sizeof(isc_uint32_t)));
return (omapi_data_getint(value->value));
}
/*
* WARNING: The region is valid only as long as the value pointer
* is valid. See omapi.h.
*/
void
omapi_value_getregion(omapi_value_t *value, isc_region_t *region) {
REQUIRE(value != NULL && value->value != NULL);
REQUIRE(value->value->type == omapi_datatype_data ||
value->value->type == omapi_datatype_string);
/*
* Boy, the word "value" appears a lot. Almost like a Smurf song.
* La la la la la la, la la la la la.
*/
region->base = value->value->u.buffer.value;
region->length = value->value->u.buffer.len;
}