271 lines
4.7 KiB
C
271 lines
4.7 KiB
C
/*
|
|
* Copyright (C) 2008 Martin Willi
|
|
* Hochschule fuer Technik Rapperswil
|
|
*
|
|
* 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. See <http://www.fsf.org/copyleft/gpl.txt>.
|
|
*
|
|
* 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.
|
|
*
|
|
* $Id$
|
|
*/
|
|
|
|
/**
|
|
* @defgroup utils utils
|
|
* @{ @ingroup libstrongswan
|
|
*/
|
|
|
|
#ifndef UTILS_H_
|
|
#define UTILS_H_
|
|
|
|
#include <sys/types.h>
|
|
#include <stdlib.h>
|
|
#include <stddef.h>
|
|
|
|
#include <enum.h>
|
|
|
|
/**
|
|
* Number of bits in a byte
|
|
*/
|
|
#define BITS_PER_BYTE 8
|
|
|
|
/**
|
|
* Default length for various auxiliary text buffers
|
|
*/
|
|
#define BUF_LEN 512
|
|
|
|
/**
|
|
* Macro compares two strings for equality
|
|
*/
|
|
#define streq(x,y) (strcmp(x, y) == 0)
|
|
|
|
/**
|
|
* Macro compares two strings for equality
|
|
*/
|
|
#define strneq(x,y,len) (strncmp(x, y, len) == 0)
|
|
|
|
/**
|
|
* Macro compares two binary blobs for equality
|
|
*/
|
|
#define memeq(x,y,len) (memcmp(x, y, len) == 0)
|
|
|
|
/**
|
|
* Macro gives back larger of two values.
|
|
*/
|
|
#define max(x,y) ((x) > (y) ? (x):(y))
|
|
|
|
/**
|
|
* Macro gives back smaller of two values.
|
|
*/
|
|
#define min(x,y) ((x) < (y) ? (x):(y))
|
|
|
|
/**
|
|
* Call destructor of an object, if object != NULL
|
|
*/
|
|
#define DESTROY_IF(obj) if (obj) (obj)->destroy(obj)
|
|
|
|
/**
|
|
* Call offset destructor of an object, if object != NULL
|
|
*/
|
|
#define DESTROY_OFFSET_IF(obj, offset) if (obj) obj->destroy_offset(obj, offset);
|
|
|
|
/**
|
|
* Call function destructor of an object, if object != NULL
|
|
*/
|
|
#define DESTROY_FUNCTION_IF(obj, fn) if (obj) obj->destroy_function(obj, fn);
|
|
|
|
/**
|
|
* Debug macro to follow control flow
|
|
*/
|
|
#define POS printf("%s, line %d\n", __FILE__, __LINE__)
|
|
|
|
/**
|
|
* Macro to allocate a sized type.
|
|
*/
|
|
#define malloc_thing(thing) ((thing*)malloc(sizeof(thing)))
|
|
|
|
/**
|
|
* Assign a function as a class method
|
|
*/
|
|
#define ASSIGN(method, function) (method = (typeof(method))function)
|
|
|
|
/**
|
|
* time_t not defined
|
|
*/
|
|
#define UNDEFINED_TIME 0
|
|
|
|
/**
|
|
* General purpose boolean type.
|
|
*/
|
|
typedef int bool;
|
|
#define FALSE 0
|
|
#define TRUE 1
|
|
|
|
typedef enum status_t status_t;
|
|
|
|
/**
|
|
* Return values of function calls.
|
|
*/
|
|
enum status_t {
|
|
/**
|
|
* Call succeeded.
|
|
*/
|
|
SUCCESS,
|
|
|
|
/**
|
|
* Call failed.
|
|
*/
|
|
FAILED,
|
|
|
|
/**
|
|
* Out of resources.
|
|
*/
|
|
OUT_OF_RES,
|
|
|
|
/**
|
|
* The suggested operation is already done
|
|
*/
|
|
ALREADY_DONE,
|
|
|
|
/**
|
|
* Not supported.
|
|
*/
|
|
NOT_SUPPORTED,
|
|
|
|
/**
|
|
* One of the arguments is invalid.
|
|
*/
|
|
INVALID_ARG,
|
|
|
|
/**
|
|
* Something could not be found.
|
|
*/
|
|
NOT_FOUND,
|
|
|
|
/**
|
|
* Error while parsing.
|
|
*/
|
|
PARSE_ERROR,
|
|
|
|
/**
|
|
* Error while verifying.
|
|
*/
|
|
VERIFY_ERROR,
|
|
|
|
/**
|
|
* Object in invalid state.
|
|
*/
|
|
INVALID_STATE,
|
|
|
|
/**
|
|
* Destroy object which called method belongs to.
|
|
*/
|
|
DESTROY_ME,
|
|
|
|
/**
|
|
* Another call to the method is required.
|
|
*/
|
|
NEED_MORE,
|
|
};
|
|
|
|
/**
|
|
* enum_names for type status_t.
|
|
*/
|
|
extern enum_name_t *status_names;
|
|
|
|
/**
|
|
* deprecated pluto style return value:
|
|
* error message, NULL for success
|
|
*/
|
|
typedef const char *err_t;
|
|
|
|
/**
|
|
* Handle struct timeval like an own type.
|
|
*/
|
|
typedef struct timeval timeval_t;
|
|
|
|
/**
|
|
* Handle struct timespec like an own type.
|
|
*/
|
|
typedef struct timespec timespec_t;
|
|
|
|
/**
|
|
* Handle struct chunk_t like an own type.
|
|
*/
|
|
typedef struct sockaddr sockaddr_t;
|
|
|
|
/**
|
|
* Clone a data to a newly allocated buffer
|
|
*/
|
|
void *clalloc(void *pointer, size_t size);
|
|
|
|
/**
|
|
* Same as memcpy, but XORs src into dst instead of copy
|
|
*/
|
|
void memxor(u_int8_t dest[], u_int8_t src[], size_t n);
|
|
|
|
/**
|
|
* returns null
|
|
*/
|
|
void *return_null();
|
|
|
|
/**
|
|
* Special type to count references
|
|
*/
|
|
typedef volatile u_int refcount_t;
|
|
|
|
/**
|
|
* Get a new reference.
|
|
*
|
|
* Increments the reference counter atomic.
|
|
*
|
|
* @param ref pointer to ref counter
|
|
*/
|
|
void ref_get(refcount_t *ref);
|
|
|
|
/**
|
|
* Put back a unused reference.
|
|
*
|
|
* Decrements the reference counter atomic and
|
|
* says if more references available.
|
|
*
|
|
* @param ref pointer to ref counter
|
|
* @return TRUE if no more references counted
|
|
*/
|
|
bool ref_put(refcount_t *ref);
|
|
|
|
/**
|
|
* Get printf hooks for time.
|
|
*
|
|
* Arguments are:
|
|
* time_t* time
|
|
* Arguments using #-specificer
|
|
* time_t* time, bool utc
|
|
*/
|
|
printf_hook_functions_t time_get_printf_hooks();
|
|
|
|
/**
|
|
* Get printf hooks for time deltas.
|
|
*
|
|
* Arguments are:
|
|
* time_t* delta
|
|
* Arguments using #-specificer
|
|
* time_t* begin, time_t* end
|
|
*/
|
|
printf_hook_functions_t time_delta_get_printf_hooks();
|
|
|
|
/**
|
|
* Get printf hooks for time deltas.
|
|
*
|
|
* Arguments are:
|
|
* u_char *ptr, int len
|
|
*/
|
|
printf_hook_functions_t mem_get_printf_hooks();
|
|
|
|
#endif /* UTILS_H_ @}*/
|