Update libjpeg_turbo to 1.4.90 from https://github.com/libjpeg-turbo/

md5/md5.c

+/*
+ * MD5C.C - RSA Data Security, Inc., MD5 message-digest algorithm
+ *
+ * Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
+ * rights reserved.
+ *
+ * License to copy and use this software is granted provided that it
+ * is identified as the "RSA Data Security, Inc. MD5 Message-Digest
+ * Algorithm" in all material mentioning or referencing this software
+ * or this function.
+ *
+ * License is also granted to make and use derivative works provided
+ * that such works are identified as "derived from the RSA Data
+ * Security, Inc. MD5 Message-Digest Algorithm" in all material
+ * mentioning or referencing the derived work.
+ *
+ * RSA Data Security, Inc. makes no representations concerning either
+ * the merchantability of this software or the suitability of this
+ * software for any particular purpose. It is provided "as is"
+ * without express or implied warranty of any kind.
+ *
+ * These notices must be retained in any copies of any part of this
+ * documentation and/or software.
+ *
+ * This code is the same as the code published by RSA Inc.  It has been
+ * edited for clarity and style only.
+ */
+
+#include <sys/types.h>
+#include <string.h>
+
+#include "./md5.h"
+
+static void MD5Transform(unsigned int [4], const unsigned char [64]);
+
+#if (BYTE_ORDER == LITTLE_ENDIAN)
+#define Encode memcpy
+#define Decode memcpy
+#else
+
+/*
+ * OS X doesn't have le32toh() or htole32()
+ */
+#ifdef __APPLE__
+#include <libkern/OSByteOrder.h>
+#define le32toh(x) OSSwapLittleToHostInt32(x)
+#define htole32(x) OSSwapHostToLittleInt32(x)
+#endif
+
+/*
+ * Encodes input (unsigned int) into output (unsigned char). Assumes len is
+ * a multiple of 4.
+ */
+
+static void
+Encode (unsigned char *output, unsigned int *input, unsigned int len)
+{
+        unsigned int i;
+        unsigned int *op = (unsigned int *)output;
+
+        for (i = 0; i < len / 4; i++)
+                op[i] = htole32(input[i]);
+}
+
+/*
+ * Decodes input (unsigned char) into output (unsigned int). Assumes len is
+ * a multiple of 4.
+ */
+
+static void
+Decode (unsigned int *output, const unsigned char *input, unsigned int len)
+{
+        unsigned int i;
+        const unsigned int *ip = (const unsigned int *)input;
+
+        for (i = 0; i < len / 4; i++)
+                output[i] = le32toh(ip[i]);
+}
+#endif
+
+static unsigned char PADDING[64] = {
+  0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+/* F, G, H and I are basic MD5 functions. */
+#define F(x, y, z) (((x) & (y)) | ((~x) & (z)))
+#define G(x, y, z) (((x) & (z)) | ((y) & (~z)))
+#define H(x, y, z) ((x) ^ (y) ^ (z))
+#define I(x, y, z) ((y) ^ ((x) | (~z)))
+
+/* ROTATE_LEFT rotates x left n bits. */
+#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
+
+/*
+ * FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
+ * Rotation is separate from addition to prevent recomputation.
+ */
+#define FF(a, b, c, d, x, s, ac) { \
+        (a) += F ((b), (c), (d)) + (x) + (unsigned int)(ac); \
+        (a) = ROTATE_LEFT ((a), (s)); \
+        (a) += (b); \
+        }
+#define GG(a, b, c, d, x, s, ac) { \
+        (a) += G ((b), (c), (d)) + (x) + (unsigned int)(ac); \
+        (a) = ROTATE_LEFT ((a), (s)); \
+        (a) += (b); \
+        }
+#define HH(a, b, c, d, x, s, ac) { \
+        (a) += H ((b), (c), (d)) + (x) + (unsigned int)(ac); \
+        (a) = ROTATE_LEFT ((a), (s)); \
+        (a) += (b); \
+        }
+#define II(a, b, c, d, x, s, ac) { \
+        (a) += I ((b), (c), (d)) + (x) + (unsigned int)(ac); \
+        (a) = ROTATE_LEFT ((a), (s)); \
+        (a) += (b); \
+        }
+
+/* MD5 initialization. Begins an MD5 operation, writing a new context. */
+
+void
+MD5Init (context)
+        MD5_CTX *context;
+{
+
+        context->count[0] = context->count[1] = 0;
+
+        /* Load magic initialization constants.  */
+        context->state[0] = 0x67452301;
+        context->state[1] = 0xefcdab89;
+        context->state[2] = 0x98badcfe;
+        context->state[3] = 0x10325476;
+}
+
+/*
+ * MD5 block update operation. Continues an MD5 message-digest
+ * operation, processing another message block, and updating the
+ * context.
+ */
+
+void
+MD5Update (context, in, inputLen)
+        MD5_CTX *context;
+        const void *in;
+        unsigned int inputLen;
+{
+        unsigned int i, idx, partLen;
+        const unsigned char *input = in;
+
+        /* Compute number of bytes mod 64 */
+        idx = (unsigned int)((context->count[0] >> 3) & 0x3F);
+
+        /* Update number of bits */
+        if ((context->count[0] += ((unsigned int)inputLen << 3))
+            < ((unsigned int)inputLen << 3))
+                context->count[1]++;
+        context->count[1] += ((unsigned int)inputLen >> 29);
+
+        partLen = 64 - idx;
+
+        /* Transform as many times as possible. */
+        if (inputLen >= partLen) {
+                memcpy((void *)&context->buffer[idx], (const void *)input,
+                    partLen);
+                MD5Transform (context->state, context->buffer);
+
+                for (i = partLen; i + 63 < inputLen; i += 64)
+                        MD5Transform (context->state, &input[i]);
+
+                idx = 0;
+        }
+        else
+                i = 0;
+
+        /* Buffer remaining input */
+        memcpy ((void *)&context->buffer[idx], (const void *)&input[i],
+            inputLen-i);
+}
+
+/*
+ * MD5 padding. Adds padding followed by original length.
+ */
+
+void
+MD5Pad (context)
+        MD5_CTX *context;
+{
+        unsigned char bits[8];
+        unsigned int idx, padLen;
+
+        /* Save number of bits */
+        Encode (bits, context->count, 8);
+
+        /* Pad out to 56 mod 64. */
+        idx = (unsigned int)((context->count[0] >> 3) & 0x3f);
+        padLen = (idx < 56) ? (56 - idx) : (120 - idx);
+        MD5Update (context, PADDING, padLen);
+
+        /* Append length (before padding) */
+        MD5Update (context, bits, 8);
+}
+
+/*
+ * MD5 finalization. Ends an MD5 message-digest operation, writing the
+ * the message digest and zeroizing the context.
+ */
+
+void
+MD5Final (digest, context)
+        unsigned char digest[16];
+        MD5_CTX *context;
+{
+        /* Do padding. */
+        MD5Pad (context);
+
+        /* Store state in digest */
+        Encode (digest, context->state, 16);
+
+        /* Zeroize sensitive information. */
+        memset ((void *)context, 0, sizeof (*context));
+}
+
+/* MD5 basic transformation. Transforms state based on block. */
+
+static void
+MD5Transform (state, block)
+        unsigned int state[4];
+        const unsigned char block[64];
+{
+        unsigned int a = state[0], b = state[1], c = state[2], d = state[3], x[16];
+
+        Decode (x, block, 64);
+
+        /* Round 1 */
+#define S11 7
+#define S12 12
+#define S13 17
+#define S14 22
+        FF (a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */
+        FF (d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */
+        FF (c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */
+        FF (b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */
+        FF (a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */
+        FF (d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */
+        FF (c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */
+        FF (b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */
+        FF (a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */
+        FF (d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */
+        FF (c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */
+        FF (b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */
+        FF (a, b, c, d, x[12], S11, 0x6b901122); /* 13 */
+        FF (d, a, b, c, x[13], S12, 0xfd987193); /* 14 */
+        FF (c, d, a, b, x[14], S13, 0xa679438e); /* 15 */
+        FF (b, c, d, a, x[15], S14, 0x49b40821); /* 16 */
+
+        /* Round 2 */
+#define S21 5
+#define S22 9
+#define S23 14
+#define S24 20
+        GG (a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */
+        GG (d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */
+        GG (c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */
+        GG (b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */
+        GG (a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */
+        GG (d, a, b, c, x[10], S22,  0x2441453); /* 22 */
+        GG (c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */
+        GG (b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */
+        GG (a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */
+        GG (d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */
+        GG (c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */
+        GG (b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */
+        GG (a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */
+        GG (d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */
+        GG (c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */
+        GG (b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */
+
+        /* Round 3 */
+#define S31 4
+#define S32 11
+#define S33 16
+#define S34 23
+        HH (a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */
+        HH (d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */
+        HH (c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */
+        HH (b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */
+        HH (a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */
+        HH (d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */
+        HH (c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */
+        HH (b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */
+        HH (a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */
+        HH (d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */
+        HH (c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */
+        HH (b, c, d, a, x[ 6], S34,  0x4881d05); /* 44 */
+        HH (a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */
+        HH (d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */
+        HH (c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */
+        HH (b, c, d, a, x[ 2], S34, 0xc4ac5665); /* 48 */
+
+        /* Round 4 */
+#define S41 6
+#define S42 10
+#define S43 15
+#define S44 21
+        II (a, b, c, d, x[ 0], S41, 0xf4292244); /* 49 */
+        II (d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */
+        II (c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */
+        II (b, c, d, a, x[ 5], S44, 0xfc93a039); /* 52 */
+        II (a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */
+        II (d, a, b, c, x[ 3], S42, 0x8f0ccc92); /* 54 */
+        II (c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */
+        II (b, c, d, a, x[ 1], S44, 0x85845dd1); /* 56 */
+        II (a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */
+        II (d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */
+        II (c, d, a, b, x[ 6], S43, 0xa3014314); /* 59 */
+        II (b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */
+        II (a, b, c, d, x[ 4], S41, 0xf7537e82); /* 61 */
+        II (d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */
+        II (c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */
+        II (b, c, d, a, x[ 9], S44, 0xeb86d391); /* 64 */
+
+        state[0] += a;
+        state[1] += b;
+        state[2] += c;
+        state[3] += d;
+
+        /* Zeroize sensitive information. */
+        memset ((void *)x, 0, sizeof (x));
+}