lsvmtools/lsvmutils/vars.c

83 строки
2.2 KiB
C

/*
**==============================================================================
**
** LSVMTools
**
** MIT License
**
** Copyright (c) Microsoft Corporation. All rights reserved.
**
** Permission is hereby granted, free of charge, to any person obtaining a copy
** of this software and associated documentation files (the "Software"), to deal
** in the Software without restriction, including without limitation the rights
** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
** copies of the Software, and to permit persons to whom the Software is
** furnished to do so, subject to the following conditions:
**
** The above copyright notice and this permission notice shall be included in
** all copies or substantial portions of the Software.
**
** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
** SOFTWARE
**
**==============================================================================
*/
#include "vars.h"
#include "strings.h"
#include "alloc.h"
const Var* VarsFind(const Vars* vars, const char* name)
{
UINTN i;
if (!vars || !name)
return NULL;
for (i = 0; i < vars->size; i++)
{
if (Strcmp(vars->data[i].name, name) == 0)
return &vars->data[i];
}
return NULL;
}
int VarsLoad(
const Vars* vars,
const char* name,
UINTN extraBytes,
unsigned char** data,
UINTN* size)
{
int rc = -1;
const Var* var;
if (data)
*data = NULL;
if (size)
*size = 0;
if (!vars || !name || !data || !size)
goto done;
if (!(var = VarsFind(vars, name)))
goto done;
if (!(*data = (unsigned char*)Malloc(var->size + extraBytes)))
goto done;
Memcpy(*data, var->data, var->size);
*size = var->size;
rc = 0;
done:
return rc;
}