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Diffstat (limited to 'programs/charon/lib/definitions.h')
-rw-r--r-- | programs/charon/lib/definitions.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/programs/charon/lib/definitions.h b/programs/charon/lib/definitions.h new file mode 100644 index 000000000..c9ef066c1 --- /dev/null +++ b/programs/charon/lib/definitions.h @@ -0,0 +1,120 @@ +/** + * @file definitions.h + * + * @brief General purpose definitions and macros. + * + */ + +/* + * Copyright (C) 2005 Jan Hutter, Martin Willi + * Hochschule fuer Technik Rapperswil + * Copyright (C) 1998, 1999 D. Hugh Redelmeier. (Endian stuff) + * + * 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. + */ + +#ifndef DEFINITIONS_H_ +#define DEFINITIONS_H_ + + + +/* stolen from strongswan */ +#if linux +# if defined(i386) && !defined(__i386__) +# define __i386__ 1 +# define MYHACKFORTHIS 1 +# endif +# include <endian.h> +# ifdef MYHACKFORTHIS +# undef __i386__ +# undef MYHACKFORTHIS +# endif +#elif !(defined(BIG_ENDIAN) && defined(LITTLE_ENDIAN) && defined(BYTE_ORDER)) + /* we don't know how to do this, so we require the macros to be defined + * with compiler flags: + * -DBIG_ENDIAN=4321 -DLITTLE_ENDIAN=1234 -DBYTE_ORDER=BIG_ENDIAN + * or -DBIG_ENDIAN=4321 -DLITTLE_ENDIAN=1234 -DBYTE_ORDER=LITTLE_ENDIAN + * Thse match the GNU definitions + */ +# include <sys/endian.h> +#endif + +#ifndef BIG_ENDIAN + #error "BIG_ENDIAN must be defined" +#endif + +#ifndef LITTLE_ENDIAN + #error "LITTLE_ENDIAN must be defined" +#endif + +#ifndef BYTE_ORDER + #error "BYTE_ORDER must be defined" +#endif + + +/** + * 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) + +/** + * Debug macro to follow control flow + */ +#define POS printf("%s, line %d\n", __FILE__, __LINE__) + +/** + * Macro to allocate a sized type. + * + * @param thing object on which a sizeof is performed + * @return poiner to allocated memory + */ +#define malloc_thing(thing) ((thing*)malloc(sizeof(thing))) + + +/** + * Mapping entry which defines the end of a mapping_t array. + */ +#define MAPPING_END (-1) + +typedef struct mapping_t mapping_t; + +/** + * @brief Mapping entry, where enum-to-string mappings are stored. + */ +struct mapping_t +{ + /** + * Enumeration value. + */ + int value; + + /** + * Mapped string. + */ + char *string; +}; + + +/** + * @brief Find a mapping_string in the mapping[]. + * + * @param mappings mappings array + * @param value enum-value to get the string from + * + */ +char *mapping_find(mapping_t *mappings, int value); + +#endif /*DEFINITIONS_H_*/ |