crypt.h File Reference

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Macros
#define	NOCRYPT
#define	NOUNCRYPT
#define	CRC32(c, b)   ((*(pcrc_32_tab+(((int)(c) ^ (b)) & 0xff))) ^ ((c) >> 8))
#define	zdecode(pkeys, pcrc_32_tab, c)    (update_keys(pkeys,pcrc_32_tab,c ^= decrypt_byte(pkeys,pcrc_32_tab)))
#define	zencode(pkeys, pcrc_32_tab, c, t)    (t=decrypt_byte(pkeys,pcrc_32_tab), update_keys(pkeys,pcrc_32_tab,c), t^(c))

Functions
static int	decrypt_byte (unsigned long *pkeys, const unsigned long *pcrc_32_tab)
static int	update_keys (unsigned long *pkeys, const unsigned long *pcrc_32_tab, int c)
static void	init_keys (const char *passwd, unsigned long *pkeys, const unsigned long *pcrc_32_tab)

Macro Definition Documentation

CRC32

#define CRC32	(		c,
			b
	)		((*(pcrc_32_tab+(((int)(c) ^ (b)) & 0xff))) ^ ((c) >> 8))

Definition at line 32 of file crypt.h.

NOCRYPT

#define NOCRYPT

Definition at line 29 of file crypt.h.

NOUNCRYPT

#define NOUNCRYPT

Definition at line 30 of file crypt.h.

zdecode

#define zdecode	(		pkeys,
			pcrc_32_tab,
			c
	)		(update_keys(pkeys,pcrc_32_tab,c ^= decrypt_byte(pkeys,pcrc_32_tab)))

Definition at line 78 of file crypt.h.

zencode

#define zencode	(		pkeys,
			pcrc_32_tab,
			c,
			t
	)		(t=decrypt_byte(pkeys,pcrc_32_tab), update_keys(pkeys,pcrc_32_tab,c), t^(c))

Definition at line 81 of file crypt.h.

Function Documentation

decrypt_byte()

static int decrypt_byte ( unsigned long *  pkeys, const unsigned long *  pcrc_32_tab  )

static

Definition at line 37 of file crypt.h.

init_keys()

static void init_keys ( const char *  passwd, unsigned long *  pkeys, const unsigned long *  pcrc_32_tab  )

static

Definition at line 67 of file crypt.h.

update_keys()

static int update_keys ( unsigned long *  pkeys, const unsigned long *  pcrc_32_tab, int  c  )

static

Definition at line 50 of file crypt.h.