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Diffstat (limited to '3rdparty/zlib/contrib/minizip/crypt.h')
-rw-r--r--3rdparty/zlib/contrib/minizip/crypt.h29
1 files changed, 13 insertions, 16 deletions
diff --git a/3rdparty/zlib/contrib/minizip/crypt.h b/3rdparty/zlib/contrib/minizip/crypt.h
index 1e9e8200b20..f4b93b78dc3 100644
--- a/3rdparty/zlib/contrib/minizip/crypt.h
+++ b/3rdparty/zlib/contrib/minizip/crypt.h
@@ -32,12 +32,12 @@
/***********************************************************************
* Return the next byte in the pseudo-random sequence
*/
-static int decrypt_byte(unsigned long* pkeys, const z_crc_t* pcrc_32_tab)
-{
+static int decrypt_byte(unsigned long* pkeys, const z_crc_t* pcrc_32_tab) {
unsigned temp; /* POTENTIAL BUG: temp*(temp^1) may overflow in an
* unpredictable manner on 16-bit systems; not a problem
* with any known compiler so far, though */
+ (void)pcrc_32_tab;
temp = ((unsigned)(*(pkeys+2)) & 0xffff) | 2;
return (int)(((temp * (temp ^ 1)) >> 8) & 0xff);
}
@@ -45,8 +45,7 @@ static int decrypt_byte(unsigned long* pkeys, const z_crc_t* pcrc_32_tab)
/***********************************************************************
* Update the encryption keys with the next byte of plain text
*/
-static int update_keys(unsigned long* pkeys,const z_crc_t* pcrc_32_tab,int c)
-{
+static int update_keys(unsigned long* pkeys, const z_crc_t* pcrc_32_tab, int c) {
(*(pkeys+0)) = CRC32((*(pkeys+0)), c);
(*(pkeys+1)) += (*(pkeys+0)) & 0xff;
(*(pkeys+1)) = (*(pkeys+1)) * 134775813L + 1;
@@ -62,8 +61,7 @@ static int update_keys(unsigned long* pkeys,const z_crc_t* pcrc_32_tab,int c)
* Initialize the encryption keys and the random header according to
* the given password.
*/
-static void init_keys(const char* passwd,unsigned long* pkeys,const z_crc_t* pcrc_32_tab)
-{
+static void init_keys(const char* passwd, unsigned long* pkeys, const z_crc_t* pcrc_32_tab) {
*(pkeys+0) = 305419896L;
*(pkeys+1) = 591751049L;
*(pkeys+2) = 878082192L;
@@ -77,24 +75,23 @@ static void init_keys(const char* passwd,unsigned long* pkeys,const z_crc_t* pcr
(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))
+ (t=decrypt_byte(pkeys,pcrc_32_tab), update_keys(pkeys,pcrc_32_tab,c), (Byte)t^(c))
#ifdef INCLUDECRYPTINGCODE_IFCRYPTALLOWED
#define RAND_HEAD_LEN 12
/* "last resort" source for second part of crypt seed pattern */
# ifndef ZCR_SEED2
-# define ZCR_SEED2 3141592654UL /* use PI as default pattern */
+# define ZCR_SEED2 3141592654UL /* use PI as default pattern */
# endif
-static int crypthead(const char* passwd, /* password string */
- unsigned char* buf, /* where to write header */
- int bufSize,
- unsigned long* pkeys,
- const z_crc_t* pcrc_32_tab,
- unsigned long crcForCrypting)
-{
- int n; /* index in random header */
+static unsigned crypthead(const char* passwd, /* password string */
+ unsigned char* buf, /* where to write header */
+ int bufSize,
+ unsigned long* pkeys,
+ const z_crc_t* pcrc_32_tab,
+ unsigned long crcForCrypting) {
+ unsigned n; /* index in random header */
int t; /* temporary */
int c; /* random byte */
unsigned char header[RAND_HEAD_LEN-2]; /* random header */