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/**
* XML Security Library (http://www.aleksey.com/xmlsec).
*
* General functions and forward declarations.
*
* This is free software; see Copyright file in the source
* distribution for preciese wording.
*
* Copyright (C) 2002-2016 Aleksey Sanin <aleksey@aleksey.com>. All Rights Reserved.
*/
#ifndef __XMLSEC_H__
#define __XMLSEC_H__
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include <libxml/tree.h>
#include <xmlsec/version.h>
#include <xmlsec/exports.h>
#include <xmlsec/strings.h>
/***********************************************************************
*
* Basic types to make ports to exotic platforms easier
*
***********************************************************************/
/**
* xmlSecPtr:
*
* Void pointer.
*/
typedef void* xmlSecPtr;
/**
* xmlSecSize:
*
* Size of something. Should be typedef instead of define
* but it will break ABI (todo).
*/
#ifdef XMLSEC_NO_SIZE_T
#define xmlSecSize unsigned int
#else /* XMLSEC_NO_SIZE_T */
#define xmlSecSize size_t
#endif /* XMLSEC_NO_SIZE_T */
/**
* XMLSEC_SIZE_BAD_CAST:
* @val: the value to cast
*
* Bad cast to xmlSecSize
*/
#define XMLSEC_SIZE_BAD_CAST(val) ((xmlSecSize)(val))
/**
* xmlSecByte:
*
* One byte. Should be typedef instead of define
* but it will break ABI (todo).
*/
#define xmlSecByte unsigned char
/***********************************************************************
*
* Forward declarations
*
***********************************************************************/
typedef struct _xmlSecKeyData xmlSecKeyData, *xmlSecKeyDataPtr;
typedef struct _xmlSecKeyDataStore xmlSecKeyDataStore, *xmlSecKeyDataStorePtr;
typedef struct _xmlSecKeyInfoCtx xmlSecKeyInfoCtx, *xmlSecKeyInfoCtxPtr;
typedef struct _xmlSecKey xmlSecKey, *xmlSecKeyPtr;
typedef struct _xmlSecKeyStore xmlSecKeyStore, *xmlSecKeyStorePtr;
typedef struct _xmlSecKeysMngr xmlSecKeysMngr, *xmlSecKeysMngrPtr;
typedef struct _xmlSecTransform xmlSecTransform, *xmlSecTransformPtr;
typedef struct _xmlSecTransformCtx xmlSecTransformCtx, *xmlSecTransformCtxPtr;
#ifndef XMLSEC_NO_XMLDSIG
typedef struct _xmlSecDSigCtx xmlSecDSigCtx, *xmlSecDSigCtxPtr;
#endif /* XMLSEC_NO_XMLDSIG */
#ifndef XMLSEC_NO_XMLENC
typedef struct _xmlSecEncCtx xmlSecEncCtx, *xmlSecEncCtxPtr;
#endif /* XMLSEC_NO_XMLENC */
XMLSEC_EXPORT int xmlSecInit (void);
XMLSEC_EXPORT int xmlSecShutdown (void);
XMLSEC_EXPORT const xmlChar * xmlSecGetDefaultCrypto (void);
/**
* XMLSEC_CRYPTO:
*
* Macro. Deprecated. Defined for backward compatibility only. Do not use
* in your code and use xmlSecGetDefaultCrypto() function instead.
*
* Returns the default crypto engine.
*/
#define XMLSEC_CRYPTO (xmlSecGetDefaultCrypto())
/***********************************************************************
*
* Version checking
*
***********************************************************************/
/**
* xmlSecCheckVersionExact:
*
* Macro. Returns 1 if the loaded xmlsec library version exactly matches
* the one used to compile the caller, 0 if it does not or a negative
* value if an error occurs.
*/
#define xmlSecCheckVersionExact() \
xmlSecCheckVersionExt(XMLSEC_VERSION_MAJOR, XMLSEC_VERSION_MINOR, XMLSEC_VERSION_SUBMINOR, xmlSecCheckVersionExactMatch)
/**
* xmlSecCheckVersion:
*
* Macro. Returns 1 if the loaded xmlsec library version ABI compatible with
* the one used to compile the caller, 0 if it does not or a negative
* value if an error occurs.
*/
#define xmlSecCheckVersion() \
xmlSecCheckVersionExt(XMLSEC_VERSION_MAJOR, XMLSEC_VERSION_MINOR, XMLSEC_VERSION_SUBMINOR, xmlSecCheckVersionABICompatible)
/**
* xmlSecCheckVersionMode:
* @xmlSecCheckVersionExactMatch: the version should match exactly.
* @xmlSecCheckVersionABICompatible: the version should be ABI compatible.
*
* The xmlsec library version mode.
*/
typedef enum {
xmlSecCheckVersionExactMatch = 0,
xmlSecCheckVersionABICompatible
} xmlSecCheckVersionMode;
XMLSEC_EXPORT int xmlSecCheckVersionExt (int major,
int minor,
int subminor,
xmlSecCheckVersionMode mode);
/**
* ATTRIBUTE_UNUSED:
*
* Macro used to signal to GCC unused function parameters
*/
#ifdef __GNUC__
#ifdef HAVE_ANSIDECL_H
#include <ansidecl.h>
#endif
#ifndef ATTRIBUTE_UNUSED
#define ATTRIBUTE_UNUSED
#endif
#else
#define ATTRIBUTE_UNUSED
#endif
/***********************************************************************
*
* Helpers to convert from void* to function pointer, this silence
* gcc warning
*
* warning: ISO C forbids conversion of object pointer to function
* pointer type
*
* The workaround is to declare a union that does the conversion. This is
* guaranteed (ISO/IEC 9899:1990 "C89"/"C90") to match exactly.
*
***********************************************************************/
/**
* XMLSEC_PTR_TO_FUNC_IMPL:
* @func_type: the function type.
*
* Macro declares helper functions to convert between "void *" pointer and
* function pointer.
*/
#define XMLSEC_PTR_TO_FUNC_IMPL(func_type) \
union xmlSecPtrToFuncUnion_ ##func_type { \
void *ptr; \
func_type * func; \
} ; \
static func_type * xmlSecPtrToFunc_ ##func_type(void * ptr) { \
union xmlSecPtrToFuncUnion_ ##func_type x; \
x.ptr = ptr; \
return (x.func); \
} \
static void * xmlSecFuncToPtr_ ##func_type(func_type * func) { \
union xmlSecPtrToFuncUnion_ ##func_type x; \
x.func = func; \
return (x.ptr); \
}
/**
* XMLSEC_PTR_TO_FUNC:
* @func_type: the function type.
* @ptr: the "void*" pointer to be converted.
*
* Macro converts from "void*" pointer to "func_type" function pointer.
*/
#define XMLSEC_PTR_TO_FUNC(func_type, ptr) \
xmlSecPtrToFunc_ ##func_type((ptr))
/**
* XMLSEC_FUNC_TO_PTR:
* @func_type: the function type.
* @func: the "func_type" function pointer to be converted.
*
* Macro converts from "func_type" function pointer to "void*" pointer.
*/
#define XMLSEC_FUNC_TO_PTR(func_type, func) \
xmlSecFuncToPtr_ ##func_type((func))
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __XMLSEC_H__ */
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