magic.c File Reference

#include <glib.h>
#include <glib/gprintf.h>
#include <string.h>
#include <stdlib.h>
#include <xmms/xmms_log.h>
#include <xmmspriv/xmms_xform.h>

Macros
#define	SWAP16(v, endian)
#define	SWAP32(v, endian)
#define	CMP(v1, entry, v2)

Typedefs
typedef enum xmms_magic_entry_type_St	xmms_magic_entry_type_t
typedef enum xmms_magic_entry_operator_St	xmms_magic_entry_operator_t
typedef struct xmms_magic_entry_St	xmms_magic_entry_t
typedef struct xmms_magic_checker_St	xmms_magic_checker_t
typedef struct xmms_magic_ext_data_St	xmms_magic_ext_data_t

Enumerations
enum	xmms_magic_entry_type_St {   XMMS_MAGIC_ENTRY_TYPE_UNKNOWN = 0, XMMS_MAGIC_ENTRY_TYPE_BYTE, XMMS_MAGIC_ENTRY_TYPE_INT16, XMMS_MAGIC_ENTRY_TYPE_INT32,   XMMS_MAGIC_ENTRY_TYPE_STRING, XMMS_MAGIC_ENTRY_TYPE_STRINGC }
enum	xmms_magic_entry_operator_St {   XMMS_MAGIC_ENTRY_OPERATOR_EQUAL = 0, XMMS_MAGIC_ENTRY_OPERATOR_LESS_THAN, XMMS_MAGIC_ENTRY_OPERATOR_GREATER_THAN, XMMS_MAGIC_ENTRY_OPERATOR_AND,   XMMS_MAGIC_ENTRY_OPERATOR_NAND }

Functions
gboolean	xmms_magic_extension_add (const gchar *mime, const gchar *ext)
gboolean	xmms_magic_add (const gchar *desc, const gchar *mime,...)

Variables
const xmms_plugin_desc_t	xmms_builtin_magic = { XMMS_PLUGIN_TYPE_XFORM , 7 , G_STRINGIFY( magic ), "Magic file identifier" , XMMS_VERSION , "Magic file identifier" , (gboolean (*)(gpointer)) xmms_magic_plugin_setup }

Macro Definition Documentation

#define CMP	(		v1,
			entry,
			v2
	)

Value:

if (entry->pre_test_and_op) { \
        v1 &= entry->pre_test_and_op; \
    } \
\
    switch (entry->oper) { \
        case XMMS_MAGIC_ENTRY_OPERATOR_EQUAL: \
            return v1 == v2; \
        case XMMS_MAGIC_ENTRY_OPERATOR_LESS_THAN: \
            return v1 < v2; \
        case XMMS_MAGIC_ENTRY_OPERATOR_GREATER_THAN: \
            return v1 > v2; \
        case XMMS_MAGIC_ENTRY_OPERATOR_AND: \
            return (v1 & v2) == v2; \
        case XMMS_MAGIC_ENTRY_OPERATOR_NAND: \
            return (v1 & v2) != v2; \
    } \

#define SWAP16	(		v,
			endian
	)

Value:

if (endian == G_LITTLE_ENDIAN) { \
        v = GUINT16_TO_LE (v); \
    } else if (endian == G_BIG_ENDIAN) { \
        v = GUINT16_TO_BE (v); \
    }

#define SWAP32	(		v,
			endian
	)

Value:

if (endian == G_LITTLE_ENDIAN) { \
        v = GUINT32_TO_LE (v); \
    } else if (endian == G_BIG_ENDIAN) { \
        v = GUINT32_TO_BE (v); \
    }

Typedef Documentation

typedef struct xmms_magic_checker_St xmms_magic_checker_t

typedef enum xmms_magic_entry_operator_St xmms_magic_entry_operator_t

typedef struct xmms_magic_entry_St xmms_magic_entry_t

typedef enum xmms_magic_entry_type_St xmms_magic_entry_type_t

typedef struct xmms_magic_ext_data_St xmms_magic_ext_data_t

Enumeration Type Documentation

enum xmms_magic_entry_operator_St

Enumerator
XMMS_MAGIC_ENTRY_OPERATOR_EQUAL
XMMS_MAGIC_ENTRY_OPERATOR_LESS_THAN
XMMS_MAGIC_ENTRY_OPERATOR_GREATER_THAN
XMMS_MAGIC_ENTRY_OPERATOR_AND
XMMS_MAGIC_ENTRY_OPERATOR_NAND

enum xmms_magic_entry_type_St

Enumerator
XMMS_MAGIC_ENTRY_TYPE_UNKNOWN
XMMS_MAGIC_ENTRY_TYPE_BYTE
XMMS_MAGIC_ENTRY_TYPE_INT16
XMMS_MAGIC_ENTRY_TYPE_INT32
XMMS_MAGIC_ENTRY_TYPE_STRING
XMMS_MAGIC_ENTRY_TYPE_STRINGC

Variable Documentation

const xmms_plugin_desc_t xmms_builtin_magic = { XMMS_PLUGIN_TYPE_XFORM , 7 , G_STRINGIFY( magic ), "Magic file identifier" , XMMS_VERSION , "Magic file identifier" , (gboolean (*)(gpointer)) xmms_magic_plugin_setup }