upiwin/src/resources.c

100 lines
2.9 KiB
C

/*
* UPIWIN - Micro Pi Windowing Framework Kernel
* Copyright (C) 2019 Amy Bowersox/Erbosoft Metaverse Design Solutions
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*-------------------------------------------------------------------------
*/
#include <zip.h>
#include "wintype.h"
#include "scode.h"
#include "config.h"
#include "log.h"
#include "resources.h"
/* conversion table from zip error codes to our HRESULT values */
static const struct tagCONVERSIONTABLE {
int zip_err_code;
HRESULT sys_err_code;
} conversion_table[] = {
{ ZIP_ER_OK, S_OK },
{ ZIP_ER_SEEK, STG_E_SEEKERROR },
{ ZIP_ER_READ, STG_E_READFAULT },
{ ZIP_ER_WRITE, STG_E_WRITEFAULT },
{ ZIP_ER_NOENT, STG_E_FILENOTFOUND },
{ ZIP_ER_MEMORY, E_OUTOFMEMORY },
{ ZIP_ER_INVAL, E_INVALIDARG },
{ ZIP_ER_INTERNAL, E_UNEXPECTED },
{ -1, 0 }
};
/* references to system resource data in zip format */
extern uint8_t _binary_sysresources_zip_start[];
extern uint8_t _binary_sysresources_zip_end;
extern uint8_t _binary_sysresources_zip_size;
static zip_t *sysresource = NULL; /* system resource file */
static HRESULT ziperror_to_hresult(zip_error_t *errinfo)
{
register int i;
for (i = 0; conversion_table[i].zip_err_code >= 0; i++)
if (conversion_table[i].zip_err_code == errinfo->zip_err)
return conversion_table[i].sys_err_code;
return MAKE_SCODE(SEVERITY_ERROR, FACILITY_ZIP, errinfo->zip_err);
}
static void rsrc_cleanup(void)
{
zip_close(sysresource);
sysresource = NULL;
}
HRESULT Rsrc_setup(void)
{
HRESULT hr = S_OK;
zip_source_t *syssource;
zip_error_t errinfo;
Log(LDEBUG, "system resource length = %u", (UINT)(&_binary_sysresources_zip_size));
zip_error_init(&errinfo);
syssource = zip_source_buffer_create(_binary_sysresources_zip_start, (UINT_PTR)(&_binary_sysresources_zip_size),
0, &errinfo);
if (!syssource)
{
hr = ziperror_to_hresult(&errinfo);
goto error_0;
}
sysresource = zip_open_from_source(syssource, ZIP_RDONLY, &errinfo);
if (!sysresource)
{
hr = ziperror_to_hresult(&errinfo);
goto error_1;
}
hr = Config_exitfunc(rsrc_cleanup);
if (FAILED(hr))
rsrc_cleanup();
return hr;
error_1:
zip_source_free(syssource);
error_0:
zip_error_fini(&errinfo);
return hr;
}