Fix gcc-7 warnings.
[openssl.git] / crypto / cast / cast_lcl.h
index a2cf8faba9012efddb09fc04ad1f73646cb5635a..e8cf322d430dc82cc41e5eb2dcbb58b06451ba0e 100644 (file)
-/* crypto/cast/cast_lcl.h */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
  *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- * 
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to.  The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- * 
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- * 
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *    "This product includes cryptographic software written by
- *     Eric Young (eay@cryptsoft.com)"
- *    The word 'cryptographic' can be left out if the rouines from the library
- *    being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from 
- *    the apps directory (application code) you must include an acknowledgement:
- *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- * 
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * 
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed.  i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
  */
 
-
 #include "e_os.h"
 
 #ifdef OPENSSL_SYS_WIN32
-#include <stdlib.h>
+# include <stdlib.h>
 #endif
 
-
 #undef c2l
-#define c2l(c,l)       (l =((unsigned long)(*((c)++)))    , \
-                        l|=((unsigned long)(*((c)++)))<< 8L, \
-                        l|=((unsigned long)(*((c)++)))<<16L, \
-                        l|=((unsigned long)(*((c)++)))<<24L)
+#define c2l(c,l)        (l =((unsigned long)(*((c)++)))    , \
+                         l|=((unsigned long)(*((c)++)))<< 8L, \
+                         l|=((unsigned long)(*((c)++)))<<16L, \
+                         l|=((unsigned long)(*((c)++)))<<24L)
 
 /* NOTE - c is not incremented as per c2l */
 #undef c2ln
-#define c2ln(c,l1,l2,n)        { \
-                       c+=n; \
-                       l1=l2=0; \
-                       switch (n) { \
-                       case 8: l2 =((unsigned long)(*(--(c))))<<24L; \
-                       case 7: l2|=((unsigned long)(*(--(c))))<<16L; \
-                       case 6: l2|=((unsigned long)(*(--(c))))<< 8L; \
-                       case 5: l2|=((unsigned long)(*(--(c))));     \
-                       case 4: l1 =((unsigned long)(*(--(c))))<<24L; \
-                       case 3: l1|=((unsigned long)(*(--(c))))<<16L; \
-                       case 2: l1|=((unsigned long)(*(--(c))))<< 8L; \
-                       case 1: l1|=((unsigned long)(*(--(c))));     \
-                               } \
-                       }
+#define c2ln(c,l1,l2,n) { \
+                        c+=n; \
+                        l1=l2=0; \
+                        switch (n) { \
+                        case 8: l2 =((unsigned long)(*(--(c))))<<24L; \
+                        case 7: l2|=((unsigned long)(*(--(c))))<<16L; \
+                        case 6: l2|=((unsigned long)(*(--(c))))<< 8L; \
+                        case 5: l2|=((unsigned long)(*(--(c))));     \
+                        case 4: l1 =((unsigned long)(*(--(c))))<<24L; \
+                        case 3: l1|=((unsigned long)(*(--(c))))<<16L; \
+                        case 2: l1|=((unsigned long)(*(--(c))))<< 8L; \
+                        case 1: l1|=((unsigned long)(*(--(c))));     \
+                                } \
+                        }
 
 #undef l2c
-#define l2c(l,c)       (*((c)++)=(unsigned char)(((l)     )&0xff), \
-                        *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \
-                        *((c)++)=(unsigned char)(((l)>>16L)&0xff), \
-                        *((c)++)=(unsigned char)(((l)>>24L)&0xff))
+#define l2c(l,c)        (*((c)++)=(unsigned char)(((l)     )&0xff), \
+                         *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \
+                         *((c)++)=(unsigned char)(((l)>>16L)&0xff), \
+                         *((c)++)=(unsigned char)(((l)>>24L)&0xff))
 
 /* NOTE - c is not incremented as per l2c */
 #undef l2cn
-#define l2cn(l1,l2,c,n)        { \
-                       c+=n; \
-                       switch (n) { \
-                       case 8: *(--(c))=(unsigned char)(((l2)>>24L)&0xff); \
-                       case 7: *(--(c))=(unsigned char)(((l2)>>16L)&0xff); \
-                       case 6: *(--(c))=(unsigned char)(((l2)>> 8L)&0xff); \
-                       case 5: *(--(c))=(unsigned char)(((l2)     )&0xff); \
-                       case 4: *(--(c))=(unsigned char)(((l1)>>24L)&0xff); \
-                       case 3: *(--(c))=(unsigned char)(((l1)>>16L)&0xff); \
-                       case 2: *(--(c))=(unsigned char)(((l1)>> 8L)&0xff); \
-                       case 1: *(--(c))=(unsigned char)(((l1)     )&0xff); \
-                               } \
-                       }
+#define l2cn(l1,l2,c,n) { \
+                        c+=n; \
+                        switch (n) { \
+                        case 8: *(--(c))=(unsigned char)(((l2)>>24L)&0xff); \
+                        case 7: *(--(c))=(unsigned char)(((l2)>>16L)&0xff); \
+                        case 6: *(--(c))=(unsigned char)(((l2)>> 8L)&0xff); \
+                        case 5: *(--(c))=(unsigned char)(((l2)     )&0xff); \
+                        case 4: *(--(c))=(unsigned char)(((l1)>>24L)&0xff); \
+                        case 3: *(--(c))=(unsigned char)(((l1)>>16L)&0xff); \
+                        case 2: *(--(c))=(unsigned char)(((l1)>> 8L)&0xff); \
+                        case 1: *(--(c))=(unsigned char)(((l1)     )&0xff); \
+                                } \
+                        }
 
 /* NOTE - c is not incremented as per n2l */
-#define n2ln(c,l1,l2,n)        { \
-                       c+=n; \
-                       l1=l2=0; \
-                       switch (n) { \
-                       case 8: l2 =((unsigned long)(*(--(c))))    ; \
-                       case 7: l2|=((unsigned long)(*(--(c))))<< 8; \
-                       case 6: l2|=((unsigned long)(*(--(c))))<<16; \
-                       case 5: l2|=((unsigned long)(*(--(c))))<<24; \
-                       case 4: l1 =((unsigned long)(*(--(c))))    ; \
-                       case 3: l1|=((unsigned long)(*(--(c))))<< 8; \
-                       case 2: l1|=((unsigned long)(*(--(c))))<<16; \
-                       case 1: l1|=((unsigned long)(*(--(c))))<<24; \
-                               } \
-                       }
+#define n2ln(c,l1,l2,n) { \
+                        c+=n; \
+                        l1=l2=0; \
+                        switch (n) { \
+                        case 8: l2 =((unsigned long)(*(--(c))))    ; \
+                        /* fall thru */                              \
+                        case 7: l2|=((unsigned long)(*(--(c))))<< 8; \
+                        /* fall thru */                              \
+                        case 6: l2|=((unsigned long)(*(--(c))))<<16; \
+                        /* fall thru */                              \
+                        case 5: l2|=((unsigned long)(*(--(c))))<<24; \
+                        /* fall thru */                              \
+                        case 4: l1 =((unsigned long)(*(--(c))))    ; \
+                        /* fall thru */                              \
+                        case 3: l1|=((unsigned long)(*(--(c))))<< 8; \
+                        /* fall thru */                              \
+                        case 2: l1|=((unsigned long)(*(--(c))))<<16; \
+                        /* fall thru */                              \
+                        case 1: l1|=((unsigned long)(*(--(c))))<<24; \
+                                } \
+                        }
 
 /* NOTE - c is not incremented as per l2n */
-#define l2nn(l1,l2,c,n)        { \
-                       c+=n; \
-                       switch (n) { \
-                       case 8: *(--(c))=(unsigned char)(((l2)    )&0xff); \
-                       case 7: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
-                       case 6: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
-                       case 5: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
-                       case 4: *(--(c))=(unsigned char)(((l1)    )&0xff); \
-                       case 3: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
-                       case 2: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
-                       case 1: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
-                               } \
-                       }
+#define l2nn(l1,l2,c,n) { \
+                        c+=n; \
+                        switch (n) { \
+                        case 8: *(--(c))=(unsigned char)(((l2)    )&0xff); \
+                        /* fall thru */                                    \
+                        case 7: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
+                        /* fall thru */                                    \
+                        case 6: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
+                        /* fall thru */                                    \
+                        case 5: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
+                        /* fall thru */                                    \
+                        case 4: *(--(c))=(unsigned char)(((l1)    )&0xff); \
+                        /* fall thru */                                    \
+                        case 3: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
+                        /* fall thru */                                    \
+                        case 2: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
+                        /* fall thru */                                    \
+                        case 1: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
+                                } \
+                        }
 
 #undef n2l
 #define n2l(c,l)        (l =((unsigned long)(*((c)++)))<<24L, \
                          *((c)++)=(unsigned char)(((l)     )&0xff))
 
 #if defined(OPENSSL_SYS_WIN32) && defined(_MSC_VER)
-#define ROTL(a,n)     (_lrotl(a,n))
-#elif defined(PEDANTIC)
-#define ROTL(a,n)     ((((a)<<(n))&0xffffffffL)|((a)>>((32-(n))&31)))
+# define ROTL(a,n)     (_lrotl(a,n))
 #else
-#define ROTL(a,n)     ((((a)<<(n))&0xffffffffL)|((a)>>(32-(n))))
+# define ROTL(a,n)     ((((a)<<(n))&0xffffffffL)|((a)>>((32-(n))&31)))
 #endif
 
 #define C_M    0x3fc
 #define C_0    22L
 #define C_1    14L
 #define C_2     6L
-#define C_3     2L /* left shift */
+#define C_3     2L              /* left shift */
 
 /* The rotate has an extra 16 added to it to help the x86 asm */
 #if defined(CAST_PTR)
-#define E_CAST(n,key,L,R,OP1,OP2,OP3) \
-       { \
-       int i; \
-       t=(key[n*2] OP1 R)&0xffffffffL; \
-       i=key[n*2+1]; \
-       t=ROTL(t,i); \
-       L^= (((((*(CAST_LONG *)((unsigned char *) \
-                       CAST_S_table0+((t>>C_2)&C_M)) OP2 \
-               *(CAST_LONG *)((unsigned char *) \
-                       CAST_S_table1+((t<<C_3)&C_M)))&0xffffffffL) OP3 \
-               *(CAST_LONG *)((unsigned char *) \
-                       CAST_S_table2+((t>>C_0)&C_M)))&0xffffffffL) OP1 \
-               *(CAST_LONG *)((unsigned char *) \
-                       CAST_S_table3+((t>>C_1)&C_M)))&0xffffffffL; \
-       }
+# define E_CAST(n,key,L,R,OP1,OP2,OP3) \
+        { \
+        int i; \
+        t=(key[n*2] OP1 R)&0xffffffffL; \
+        i=key[n*2+1]; \
+        t=ROTL(t,i); \
+        L^= (((((*(CAST_LONG *)((unsigned char *) \
+                        CAST_S_table0+((t>>C_2)&C_M)) OP2 \
+                *(CAST_LONG *)((unsigned char *) \
+                        CAST_S_table1+((t<<C_3)&C_M)))&0xffffffffL) OP3 \
+                *(CAST_LONG *)((unsigned char *) \
+                        CAST_S_table2+((t>>C_0)&C_M)))&0xffffffffL) OP1 \
+                *(CAST_LONG *)((unsigned char *) \
+                        CAST_S_table3+((t>>C_1)&C_M)))&0xffffffffL; \
+        }
 #elif defined(CAST_PTR2)
-#define E_CAST(n,key,L,R,OP1,OP2,OP3) \
-       { \
-       int i; \
-       CAST_LONG u,v,w; \
-       w=(key[n*2] OP1 R)&0xffffffffL; \
-       i=key[n*2+1]; \
-       w=ROTL(w,i); \
-       u=w>>C_2; \
-       v=w<<C_3; \
-       u&=C_M; \
-       v&=C_M; \
-       t= *(CAST_LONG *)((unsigned char *)CAST_S_table0+u); \
-       u=w>>C_0; \
-       t=(t OP2 *(CAST_LONG *)((unsigned char *)CAST_S_table1+v))&0xffffffffL;\
-       v=w>>C_1; \
-       u&=C_M; \
-       v&=C_M; \
-       t=(t OP3 *(CAST_LONG *)((unsigned char *)CAST_S_table2+u)&0xffffffffL);\
-       t=(t OP1 *(CAST_LONG *)((unsigned char *)CAST_S_table3+v)&0xffffffffL);\
-       L^=(t&0xffffffff); \
-       }
+# define E_CAST(n,key,L,R,OP1,OP2,OP3) \
+        { \
+        int i; \
+        CAST_LONG u,v,w; \
+        w=(key[n*2] OP1 R)&0xffffffffL; \
+        i=key[n*2+1]; \
+        w=ROTL(w,i); \
+        u=w>>C_2; \
+        v=w<<C_3; \
+        u&=C_M; \
+        v&=C_M; \
+        t= *(CAST_LONG *)((unsigned char *)CAST_S_table0+u); \
+        u=w>>C_0; \
+        t=(t OP2 *(CAST_LONG *)((unsigned char *)CAST_S_table1+v))&0xffffffffL;\
+        v=w>>C_1; \
+        u&=C_M; \
+        v&=C_M; \
+        t=(t OP3 *(CAST_LONG *)((unsigned char *)CAST_S_table2+u)&0xffffffffL);\
+        t=(t OP1 *(CAST_LONG *)((unsigned char *)CAST_S_table3+v)&0xffffffffL);\
+        L^=(t&0xffffffff); \
+        }
 #else
-#define E_CAST(n,key,L,R,OP1,OP2,OP3) \
-       { \
-       CAST_LONG a,b,c,d; \
-       t=(key[n*2] OP1 R)&0xffffffff; \
-       t=ROTL(t,(key[n*2+1])); \
-       a=CAST_S_table0[(t>> 8)&0xff]; \
-       b=CAST_S_table1[(t    )&0xff]; \
-       c=CAST_S_table2[(t>>24)&0xff]; \
-       d=CAST_S_table3[(t>>16)&0xff]; \
-       L^=(((((a OP2 b)&0xffffffffL) OP3 c)&0xffffffffL) OP1 d)&0xffffffffL; \
-       }
+# define E_CAST(n,key,L,R,OP1,OP2,OP3) \
+        { \
+        CAST_LONG a,b,c,d; \
+        t=(key[n*2] OP1 R)&0xffffffff; \
+        t=ROTL(t,(key[n*2+1])); \
+        a=CAST_S_table0[(t>> 8)&0xff]; \
+        b=CAST_S_table1[(t    )&0xff]; \
+        c=CAST_S_table2[(t>>24)&0xff]; \
+        d=CAST_S_table3[(t>>16)&0xff]; \
+        L^=(((((a OP2 b)&0xffffffffL) OP3 c)&0xffffffffL) OP1 d)&0xffffffffL; \
+        }
 #endif
 
 extern const CAST_LONG CAST_S_table0[256];