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gen/crypt.c Libc-583 Libc-262.3.2
--- Libc/Libc-583/gen/crypt.c
+++ Libc/Libc-262.3.2/gen/crypt.c
@@ -2,6 +2,8 @@
  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
+ * 
+ * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
@@ -57,10 +59,8 @@
  */
 
 
-#include <sys/cdefs.h>
 #include <unistd.h>
 #include <limits.h>
-#include <sys/types.h>
 #include <pwd.h>
 #include <stdlib.h>
 
@@ -85,7 +85,7 @@
 /*
  * define "MUST_ALIGN" if your compiler cannot load/store
  * long integers at arbitrary (e.g. odd) memory locations.
- * (Either that or never pass unaligned addresses to __crypt_des_cipher!)
+ * (Either that or never pass unaligned addresses to des_cipher!)
  */
 #if !defined(vax)
 #define	MUST_ALIGN
@@ -101,7 +101,7 @@
  * define "LONG_IS_32_BITS" only if sizeof(long)==4.
  * This avoids use of bit fields (your compiler may be sloppy with them).
  */
-#if !defined(cray) && (LONG_BIT == 32)
+#if !defined(cray)
 #define	LONG_IS_32_BITS
 #endif
 
@@ -118,7 +118,7 @@
 
 /*
  * define "LARGEDATA" to get faster permutations, by using about 72 kilobytes
- * of lookup tables.  This speeds up __crypt_des_setkey() and __crypt_des_cipher(), but has
+ * of lookup tables.  This speeds up des_setkey() and des_cipher(), but has
  * little effect on crypt().
  */
 #if defined(notdef)
@@ -129,10 +129,7 @@
 #ifndef STATIC
 #define	STATIC	static
 #endif
-#ifndef BUILDING_VARIANT
 STATIC void init_des(), init_perm(), permute();
-#endif /* BUILDING_VARIANT */
-__private_extern__ int __crypt_des_cipher(), __crypt_des_setkey();
 #ifdef DEBUG
 STATIC prtab();
 #endif
@@ -320,7 +317,6 @@
 #define	PERM3264(d,d0,d1,cpp,p)				\
 	{ C_block tblk; permute(cpp,&tblk,p,4); LOAD (d,d0,d1,tblk); }
 
-#ifndef BUILDING_VARIANT
 STATIC void permute(cp, out, p, chars_in)
 	unsigned char *cp;
 	C_block *out;
@@ -339,18 +335,11 @@
 	} while (--chars_in > 0);
 	STORE(D,D0,D1,*out);
 }
-#endif /* BUILDING_VARIANT */
 #endif /* LARGEDATA */
 
-#ifndef BUILDING_VARIANT
-__private_extern__ int __crypt_des_setkey_called = 0;
-#else /* BUILDING_VARIANT */
-__private_extern__ int __crypt_des_setkey_called;
-#endif /* BUILDING_VARIANT */
 
 /* =====  (mostly) Standard DES Tables ==================== */
 
-#ifndef BUILDING_VARIANT
 static unsigned char IP[] = {		/* initial permutation */
 	58, 50, 42, 34, 26, 18, 10,  2,
 	60, 52, 44, 36, 28, 20, 12,  4,
@@ -405,54 +394,46 @@
 };
 
 static const unsigned char S[8][64] = {	/* 48->32 bit substitution tables */
-	{				/* S[1]			*/
+					/* S[1]			*/
 	14,  4, 13,  1,  2, 15, 11,  8,  3, 10,  6, 12,  5,  9,  0,  7,
 	 0, 15,  7,  4, 14,  2, 13,  1, 10,  6, 12, 11,  9,  5,  3,  8,
 	 4,  1, 14,  8, 13,  6,  2, 11, 15, 12,  9,  7,  3, 10,  5,  0,
 	15, 12,  8,  2,  4,  9,  1,  7,  5, 11,  3, 14, 10,  0,  6, 13,
-	},
-	{				/* S[2]			*/
+					/* S[2]			*/
 	15,  1,  8, 14,  6, 11,  3,  4,  9,  7,  2, 13, 12,  0,  5, 10,
 	 3, 13,  4,  7, 15,  2,  8, 14, 12,  0,  1, 10,  6,  9, 11,  5,
 	 0, 14,  7, 11, 10,  4, 13,  1,  5,  8, 12,  6,  9,  3,  2, 15,
 	13,  8, 10,  1,  3, 15,  4,  2, 11,  6,  7, 12,  0,  5, 14,  9,
-	},
-	{				/* S[3]			*/
+					/* S[3]			*/
 	10,  0,  9, 14,  6,  3, 15,  5,  1, 13, 12,  7, 11,  4,  2,  8,
 	13,  7,  0,  9,  3,  4,  6, 10,  2,  8,  5, 14, 12, 11, 15,  1,
 	13,  6,  4,  9,  8, 15,  3,  0, 11,  1,  2, 12,  5, 10, 14,  7,
 	 1, 10, 13,  0,  6,  9,  8,  7,  4, 15, 14,  3, 11,  5,  2, 12,
-	},
-	{				/* S[4]			*/
+					/* S[4]			*/
 	 7, 13, 14,  3,  0,  6,  9, 10,  1,  2,  8,  5, 11, 12,  4, 15,
 	13,  8, 11,  5,  6, 15,  0,  3,  4,  7,  2, 12,  1, 10, 14,  9,
 	10,  6,  9,  0, 12, 11,  7, 13, 15,  1,  3, 14,  5,  2,  8,  4,
 	 3, 15,  0,  6, 10,  1, 13,  8,  9,  4,  5, 11, 12,  7,  2, 14,
-	},
-	{				/* S[5]			*/
+					/* S[5]			*/
 	 2, 12,  4,  1,  7, 10, 11,  6,  8,  5,  3, 15, 13,  0, 14,  9,
 	14, 11,  2, 12,  4,  7, 13,  1,  5,  0, 15, 10,  3,  9,  8,  6,
 	 4,  2,  1, 11, 10, 13,  7,  8, 15,  9, 12,  5,  6,  3,  0, 14,
 	11,  8, 12,  7,  1, 14,  2, 13,  6, 15,  0,  9, 10,  4,  5,  3,
-	},
-	{				/* S[6]			*/
+					/* S[6]			*/
 	12,  1, 10, 15,  9,  2,  6,  8,  0, 13,  3,  4, 14,  7,  5, 11,
 	10, 15,  4,  2,  7, 12,  9,  5,  6,  1, 13, 14,  0, 11,  3,  8,
 	 9, 14, 15,  5,  2,  8, 12,  3,  7,  0,  4, 10,  1, 13, 11,  6,
 	 4,  3,  2, 12,  9,  5, 15, 10, 11, 14,  1,  7,  6,  0,  8, 13,
-	},
-	{				/* S[7]			*/
+					/* S[7]			*/
 	 4, 11,  2, 14, 15,  0,  8, 13,  3, 12,  9,  7,  5, 10,  6,  1,
 	13,  0, 11,  7,  4,  9,  1, 10, 14,  3,  5, 12,  2, 15,  8,  6,
 	 1,  4, 11, 13, 12,  3,  7, 14, 10, 15,  6,  8,  0,  5,  9,  2,
 	 6, 11, 13,  8,  1,  4, 10,  7,  9,  5,  0, 15, 14,  2,  3, 12,
-	},
-	{				/* S[8]			*/
+					/* S[8]			*/
 	13,  2,  8,  4,  6, 15, 11,  1, 10,  9,  3, 14,  5,  0, 12,  7,
 	 1, 15, 13,  8, 10,  3,  7,  4, 12,  5,  6, 11,  0, 14,  9,  2,
 	 7, 11,  4,  1,  9, 12, 14,  2,  0,  6, 10, 13, 15,  3,  5,  8,
 	 2,  1, 14,  7,  4, 10,  8, 13, 15, 12,  9,  0,  3,  5,  6, 11,
-	},
 };
 
 static unsigned char P32Tr[] = {	/* 32-bit permutation function */
@@ -535,7 +516,7 @@
 			key++;
 		keyblock.b[i] = t;
 	}
-	if (__crypt_des_setkey((char *)keyblock.b))	/* also initializes "a64toi" */
+	if (des_setkey((char *)keyblock.b))	/* also initializes "a64toi" */
 		return (NULL);
 
 	encp = &cryptresult[0];
@@ -545,7 +526,7 @@
 		 * Involve the rest of the password 8 characters at a time.
 		 */
 		while (*key) {
-			if (__crypt_des_cipher((char *)&keyblock,
+			if (des_cipher((char *)&keyblock,
 			    (char *)&keyblock, 0L, 1))
 				return (NULL);
 			for (i = 0; i < 8; i++) {
@@ -553,7 +534,7 @@
 					key++;
 				keyblock.b[i] ^= t;
 			}
-			if (__crypt_des_setkey((char *)keyblock.b))
+			if (des_setkey((char *)keyblock.b))
 				return (NULL);
 		}
 
@@ -584,7 +565,7 @@
 		salt = (salt<<6) | a64toi[t];
 	}
 	encp += salt_size;
-	if (__crypt_des_cipher((char *)&constdatablock, (char *)&rsltblock,
+	if (des_cipher((char *)&constdatablock, (char *)&rsltblock,
 	    salt, num_iter))
 		return (NULL);
 
@@ -613,7 +594,7 @@
 
 
 /*
- * The Key Schedule, filled in by __crypt_des_setkey() or setkey().
+ * The Key Schedule, filled in by des_setkey() or setkey().
  */
 #define	KS_SIZE	16
 static C_block	KS[KS_SIZE];
@@ -621,7 +602,7 @@
 /*
  * Set up the key schedule from the key.
  */
-__private_extern__ int __crypt_des_setkey(key)
+STATIC int des_setkey(key)
 	register const char *key;
 {
 	register DCL_BLOCK(K, K0, K1);
@@ -644,7 +625,6 @@
 		PERM6464(K,K0,K1,(unsigned char *)key,ptabp);
 		STORE(K&~0x03030303L, K0&~0x03030303L, K1, *(C_block *)key);
 	}
-	__crypt_des_setkey_called = 1;
 	return (0);
 }
 
@@ -656,7 +636,7 @@
  * NOTE: the performance of this routine is critically dependent on your
  * compiler and machine architecture.
  */
-__private_extern__ int __crypt_des_cipher(in, out, salt, num_iter)
+STATIC int des_cipher(in, out, salt, num_iter)
 	const char *in;
 	char *out;
 	long salt;
@@ -668,8 +648,7 @@
 #endif
 	register long L0, L1, R0, R1, k;
 	register C_block *kp;
-	register int loop_count;
-	ssize_t ks_inc;
+	register int ks_inc, loop_count;
 	C_block B;
 
 	L0 = salt;
@@ -945,16 +924,11 @@
 		}
 	}
 }
-#endif /* BUILDING_VARIANT */
 
 /*
  * "setkey" routine (for backwards compatibility)
  */
-#if __DARWIN_UNIX03
-void setkey(key)
-#else /* !__DARWIN_UNIX03 */
 int setkey(key)
-#endif /* __DARWIN_UNIX03 */
 	register const char *key;
 {
 	register int i, j, k;
@@ -968,33 +942,19 @@
 		}
 		keyblock.b[i] = k;
 	}
-#if __DARWIN_UNIX03
-	__crypt_des_setkey((char *)keyblock.b);
-#else /* !__DARWIN_UNIX03 */
-	return (__crypt_des_setkey((char *)keyblock.b));
-#endif /* __DARWIN_UNIX03 */
+	return (des_setkey((char *)keyblock.b));
 }
 
 /*
  * "encrypt" routine (for backwards compatibility)
  */
-#if __DARWIN_UNIX03
-void encrypt(block, flag)
-#else /* !__DARWIN_UNIX03 */
 int encrypt(block, flag)
-#endif /* __DARWIN_UNIX03 */
 	register char *block;
 	int flag;
 {
 	register int i, j, k;
 	C_block cblock;
 
-	/* Prevent encrypt from crashing if setkey was never called.
-	 * This does not make a good cypher */
-	if (!__crypt_des_setkey_called) {
-		cblock.b32.i0 = cblock.b32.i1 = 0;
-		__crypt_des_setkey((char *)cblock.b);
-	}
 	for (i = 0; i < 8; i++) {
 		k = 0;
 		for (j = 0; j < 8; j++) {
@@ -1003,12 +963,8 @@
 		}
 		cblock.b[i] = k;
 	}
-	if (__crypt_des_cipher((char *)&cblock, (char *)&cblock, 0L, (flag ? -1: 1)))
-#if __DARWIN_UNIX03
-		return;
-#else /* !__DARWIN_UNIX03 */
+	if (des_cipher((char *)&cblock, (char *)&cblock, 0L, (flag ? -1: 1)))
 		return (1);
-#endif /* __DARWIN_UNIX03 */
 	for (i = 7; i >= 0; i--) {
 		k = cblock.b[i];
 		for (j = 7; j >= 0; j--) {
@@ -1016,12 +972,9 @@
 			k >>= 1;
 		}
 	}
-#if !__DARWIN_UNIX03
 	return (0);
-#endif /* !__DARWIN_UNIX03 */
 }
 
-#ifndef BUILDING_VARIANT
 #ifdef DEBUG
 STATIC
 prtab(s, t, num_rows)
@@ -1041,4 +994,3 @@
 	(void)printf("\n");
 }
 #endif
-#endif /* BUILDING_VARIANT */