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/******
gutil.h
GameSpy C Engine SDK
Copyright 1999-2001 GameSpy Industries, Inc
18002 Skypark Circle
Irvine, California 92614
949.798.4200 (Tel)
949.798.4299 (Fax)
devsupport@gamespy.com
******
Please see the GameSpy C Engine SDK documentation for more
information
******/
typedef unsigned char uchar;
void cengine_gs_encode ( uchar *ins, int size, uchar *result );
void cengine_gs_encrypt ( uchar *key, int key_len, uchar *buffer_ptr, int buffer_len );
#define CRYPT_HEIGHT 16
#define CRYPT_TABLE_SIZE 256
#define NUM_KEYSETUP_PASSES 2
#define NWORDS 16
typedef struct {
goa_uint32 F[256];
goa_uint32 x_stack[CRYPT_HEIGHT];
goa_uint32 y_stack[CRYPT_HEIGHT];
goa_uint32 z_stack[CRYPT_HEIGHT];
int index;
goa_uint32 x, y, z;
goa_uint32 tree_num;
goa_uint32 keydata[NWORDS];
unsigned char *keyptr;
} crypt_key;
void
init_crypt_key(const unsigned char *key,
unsigned int bytes_in_key,
crypt_key *L);
void
crypt_encrypt(crypt_key *L, goa_uint32 *dest, int nodes);
void crypt_docrypt(crypt_key *L, unsigned char *data, int datalen);
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