Update zlib to 1.2.5.

third_party/zlib/contrib/minizip/crypt.h

 /* crypt.h -- base code for crypt/uncrypt ZIPfile
 
 
    Version 1.01e, February 12th, 2005
 
    Copyright (C) 1998-2005 Gilles Vollant
 
    This code is a modified version of crypting code in Infozip distribution
 
    The encryption/decryption parts of this source code (as opposed to the
@@ skipping 69 matching lines @@
     (t=decrypt_byte(pkeys,pcrc_32_tab), update_keys(pkeys,pcrc_32_tab,c), 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 */
 #  endif
 
-static int crypthead(passwd, buf, bufSize, pkeys, pcrc_32_tab, crcForCrypting)
-    const char *passwd;         /* password string */
-    unsigned char *buf;         /* where to write header */
-    int bufSize;
-    unsigned long* pkeys;
-    const unsigned long* pcrc_32_tab;
-    unsigned long crcForCrypting;
+static int crypthead(const char* passwd,      /* password string */
+                     unsigned char* buf,      /* where to write header */
+                     int bufSize,
+                     unsigned long* pkeys,
+                     const unsigned long* pcrc_32_tab,
+                     unsigned long crcForCrypting)
 {
     int n;                       /* index in random header */
     int t;                       /* temporary */
     int c;                       /* random byte */
     unsigned char header[RAND_HEAD_LEN-2]; /* random header */
     static unsigned calls = 0;   /* ensure different random header each time */
 
     if (bufSize<RAND_HEAD_LEN)
       return 0;
 
@@ skipping 10 matching lines @@
     {
         c = (rand() >> 7) & 0xff;
         header[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, c, t);
     }
     /* Encrypt random header (last two bytes is high word of crc) */
     init_keys(passwd, pkeys, pcrc_32_tab);
     for (n = 0; n < RAND_HEAD_LEN-2; n++)
     {
         buf[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, header[n], t);
     }
-    buf[n++] = zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 16) & 0xff, t);
-    buf[n++] = zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 24) & 0xff, t);
+    buf[n++] = (unsigned char)zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 16) & 0xff, t);
+    buf[n++] = (unsigned char)zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 24) & 0xff, t);
     return n;
 }
 
 #endif