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/*
* libzvbi - Links
*
* Copyright (C) 2001, 2002, 2003, 2004 Michael H. Schimek
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: link.c,v 1.3 2005/01/31 07:10:03 mschimek Exp $ */
#include "../site_def.h"
#include <stdlib.h> /* malloc() */
#include <assert.h>
#include "misc.h" /* CLEAR() */
#include "link.h"
/** */
const char *
vbi3_link_type_name (vbi3_link_type type)
{
switch (type) {
#undef CASE
#define CASE(type) case VBI3_LINK_##type : return #type ;
CASE (NONE)
CASE (MESSAGE)
CASE (PAGE)
CASE (SUBPAGE)
CASE (HTTP)
CASE (FTP)
CASE (EMAIL)
CASE (LID)
CASE (TELEWEB)
}
return NULL;
}
/** @internal */
void
_vbi3_link_dump (const vbi3_link * ld,
FILE * fp)
{
assert (NULL != ld);
assert (NULL != fp);
fprintf (fp, "%s eacem=%u name='%s' url='%s' script='%s' "
"pgno=%x subno=%x expires=%f itv=",
vbi3_link_type_name (ld->type),
ld->eacem,
ld->name ? ld->name : "none",
ld->url ? ld->url : "none",
ld->script ? ld->script : "none",
ld->pgno, ld->subno, ld->expires);
switch (ld->itv_type) {
case VBI3_WEBLINK_UNKNOWN: fputs ("UNKNOWN", fp); break;
case VBI3_WEBLINK_PROGRAM_RELATED: fputs ("PROGRAM", fp); break;
case VBI3_WEBLINK_NETWORK_RELATED: fputs ("NETWORK", fp); break;
case VBI3_WEBLINK_STATION_RELATED: fputs ("STATION", fp); break;
case VBI3_WEBLINK_SPONSOR_MESSAGE: fputs ("SPONSOR", fp); break;
case VBI3_WEBLINK_OPERATOR: fputs ("OPERATOR", fp); break;
default:
fprintf (fp, "%u??", ld->itv_type);
break;
}
fputc ('\n', fp);
if (ld->network) {
_vbi3_network_dump (ld->network, fp);
fputc ('\n', fp);
}
}
/**
* @param lk vbi3_link structure initialized with vbi3_link_init()
* or vbi3_link_copy().
*
* Frees all resources associated with @a lk, except the structure itself.
*/
void
vbi3_link_destroy (vbi3_link * ld)
{
assert (NULL != ld);
vbi3_free (ld->name);
vbi3_free (ld->url);
vbi3_free (ld->script);
if (ld->nk_alloc) {
vbi3_network_destroy (ld->network);
vbi3_free (ld->network);
}
CLEAR (*ld);
}
/**
* @param dst vbi3_link structure to initialize.
* @param src Initialized vbi3_link structure, can be @c NULL.
*
* Initializes all fields of @a dst by copying from @a src. Does
* nothing if @a dst and @a src are the same.
*
* @returns
* @c FALSE on failure (out of memory).
*/
vbi3_bool
vbi3_link_copy (vbi3_link * dst,
const vbi3_link * src)
{
assert (NULL != dst);
if (dst == src)
return TRUE;
if (!src) {
vbi3_link_init (dst);
} else if (dst != src) {
char *name;
char *url;
char *script;
vbi3_network *nk;
name = NULL;
url = NULL;
script = NULL;
nk = NULL;
if (src->name && !(name = strdup (src->name)))
return FALSE;
if (src->url && !(url = strdup (src->url))) {
vbi3_free (name);
return FALSE;
}
if (src->script && !(script = strdup (src->script))) {
vbi3_free (url);
vbi3_free (name);
return FALSE;
}
if (src->network) {
if (!(nk = vbi3_malloc (sizeof (*nk)))) {
vbi3_free (script);
vbi3_free (url);
vbi3_free (name);
return FALSE;
}
vbi3_network_copy (nk, src->network);
}
dst->type = src->type;
dst->eacem = src->eacem;
dst->name = name;
dst->url = url;
dst->script = script;
dst->network = nk;
dst->nk_alloc = (NULL != nk);
dst->pgno = src->pgno;
dst->subno = src->subno;
dst->expires = src->expires;
dst->itv_type = src->itv_type;
dst->priority = src->priority;
dst->autoload = src->autoload;
}
return TRUE;
}
/**
* @param ld vbi3_link structure to initialize.
*
* Initializes all fields of @a ld to zero.
*
* @returns
* @c TRUE.
*/
void
vbi3_link_init (vbi3_link * ld)
{
assert (NULL != ld);
ld->type = VBI3_LINK_NONE;
ld->eacem = FALSE;
ld->name = NULL;
ld->url = NULL;
ld->script = NULL;
ld->network = NULL;
ld->nk_alloc = FALSE;
ld->pgno = 0;
ld->subno = VBI3_ANY_SUBNO;
ld->expires = 0.0;
ld->itv_type = VBI3_WEBLINK_UNKNOWN;
ld->priority = 9;
ld->autoload = FALSE;
}
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