crypt.h File Reference

Go to the source code of this file.

Macros
#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 z_crc_t *pcrc_32_tab)
static int	update_keys (unsigned long *pkeys, const z_crc_t *pcrc_32_tab, int c)
static void	init_keys (const char *passwd, unsigned long *pkeys, const z_crc_t *pcrc_32_tab)

Macro Definition Documentation

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

Definition at line 30 of file crypt.h.

Referenced by update_keys().

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

Definition at line 76 of file crypt.h.

Referenced by unzOpenCurrentFile3(), and unzReadCurrentFile().

#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 79 of file crypt.h.

Referenced by zip64FlushWriteBuffer().

Function Documentation

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

static

Definition at line 35 of file crypt.h.

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

static

Definition at line 65 of file crypt.h.

References update_keys().

Referenced by unzOpenCurrentFile3().

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

static

Definition at line 48 of file crypt.h.

References CRC32, and int().

Referenced by init_keys().