1c74663799493f2b1e6123c18def94295d0afab7Kenny Root#if HAVE_CONFIG_H 2c74663799493f2b1e6123c18def94295d0afab7Kenny Root# include <config.h> 3c74663799493f2b1e6123c18def94295d0afab7Kenny Root#endif 4c74663799493f2b1e6123c18def94295d0afab7Kenny Root 5c74663799493f2b1e6123c18def94295d0afab7Kenny Root#include <stdlib.h> /* for malloc() */ 6c74663799493f2b1e6123c18def94295d0afab7Kenny Root#include <string.h> /* for memcpy() */ 7c74663799493f2b1e6123c18def94295d0afab7Kenny Root 8c74663799493f2b1e6123c18def94295d0afab7Kenny Root#include "private/md5.h" 9c74663799493f2b1e6123c18def94295d0afab7Kenny Root#include "share/alloc.h" 10c74663799493f2b1e6123c18def94295d0afab7Kenny Root 11c74663799493f2b1e6123c18def94295d0afab7Kenny Root#ifndef FLaC__INLINE 12c74663799493f2b1e6123c18def94295d0afab7Kenny Root#define FLaC__INLINE 13c74663799493f2b1e6123c18def94295d0afab7Kenny Root#endif 14c74663799493f2b1e6123c18def94295d0afab7Kenny Root 15c74663799493f2b1e6123c18def94295d0afab7Kenny Root/* 16c74663799493f2b1e6123c18def94295d0afab7Kenny Root * This code implements the MD5 message-digest algorithm. 17c74663799493f2b1e6123c18def94295d0afab7Kenny Root * The algorithm is due to Ron Rivest. This code was 18c74663799493f2b1e6123c18def94295d0afab7Kenny Root * written by Colin Plumb in 1993, no copyright is claimed. 19c74663799493f2b1e6123c18def94295d0afab7Kenny Root * This code is in the public domain; do with it what you wish. 20c74663799493f2b1e6123c18def94295d0afab7Kenny Root * 21c74663799493f2b1e6123c18def94295d0afab7Kenny Root * Equivalent code is available from RSA Data Security, Inc. 22c74663799493f2b1e6123c18def94295d0afab7Kenny Root * This code has been tested against that, and is equivalent, 23c74663799493f2b1e6123c18def94295d0afab7Kenny Root * except that you don't need to include two pages of legalese 24c74663799493f2b1e6123c18def94295d0afab7Kenny Root * with every copy. 25c74663799493f2b1e6123c18def94295d0afab7Kenny Root * 26c74663799493f2b1e6123c18def94295d0afab7Kenny Root * To compute the message digest of a chunk of bytes, declare an 27c74663799493f2b1e6123c18def94295d0afab7Kenny Root * MD5Context structure, pass it to MD5Init, call MD5Update as 28c74663799493f2b1e6123c18def94295d0afab7Kenny Root * needed on buffers full of bytes, and then call MD5Final, which 29c74663799493f2b1e6123c18def94295d0afab7Kenny Root * will fill a supplied 16-byte array with the digest. 30c74663799493f2b1e6123c18def94295d0afab7Kenny Root * 31c74663799493f2b1e6123c18def94295d0afab7Kenny Root * Changed so as no longer to depend on Colin Plumb's `usual.h' header 32c74663799493f2b1e6123c18def94295d0afab7Kenny Root * definitions; now uses stuff from dpkg's config.h. 33c74663799493f2b1e6123c18def94295d0afab7Kenny Root * - Ian Jackson <ijackson@nyx.cs.du.edu>. 34c74663799493f2b1e6123c18def94295d0afab7Kenny Root * Still in the public domain. 35c74663799493f2b1e6123c18def94295d0afab7Kenny Root * 36c74663799493f2b1e6123c18def94295d0afab7Kenny Root * Josh Coalson: made some changes to integrate with libFLAC. 37c74663799493f2b1e6123c18def94295d0afab7Kenny Root * Still in the public domain. 38c74663799493f2b1e6123c18def94295d0afab7Kenny Root */ 39c74663799493f2b1e6123c18def94295d0afab7Kenny Root 40c74663799493f2b1e6123c18def94295d0afab7Kenny Root/* The four core functions - F1 is optimized somewhat */ 41c74663799493f2b1e6123c18def94295d0afab7Kenny Root 42c74663799493f2b1e6123c18def94295d0afab7Kenny Root/* #define F1(x, y, z) (x & y | ~x & z) */ 43c74663799493f2b1e6123c18def94295d0afab7Kenny Root#define F1(x, y, z) (z ^ (x & (y ^ z))) 44c74663799493f2b1e6123c18def94295d0afab7Kenny Root#define F2(x, y, z) F1(z, x, y) 45c74663799493f2b1e6123c18def94295d0afab7Kenny Root#define F3(x, y, z) (x ^ y ^ z) 46c74663799493f2b1e6123c18def94295d0afab7Kenny Root#define F4(x, y, z) (y ^ (x | ~z)) 47c74663799493f2b1e6123c18def94295d0afab7Kenny Root 48c74663799493f2b1e6123c18def94295d0afab7Kenny Root/* This is the central step in the MD5 algorithm. */ 49c74663799493f2b1e6123c18def94295d0afab7Kenny Root#define MD5STEP(f,w,x,y,z,in,s) \ 50c74663799493f2b1e6123c18def94295d0afab7Kenny Root (w += f(x,y,z) + in, w = (w<<s | w>>(32-s)) + x) 51c74663799493f2b1e6123c18def94295d0afab7Kenny Root 52c74663799493f2b1e6123c18def94295d0afab7Kenny Root/* 53c74663799493f2b1e6123c18def94295d0afab7Kenny Root * The core of the MD5 algorithm, this alters an existing MD5 hash to 54c74663799493f2b1e6123c18def94295d0afab7Kenny Root * reflect the addition of 16 longwords of new data. MD5Update blocks 55c74663799493f2b1e6123c18def94295d0afab7Kenny Root * the data and converts bytes into longwords for this routine. 56c74663799493f2b1e6123c18def94295d0afab7Kenny Root */ 57c74663799493f2b1e6123c18def94295d0afab7Kenny Rootstatic void FLAC__MD5Transform(FLAC__uint32 buf[4], FLAC__uint32 const in[16]) 58c74663799493f2b1e6123c18def94295d0afab7Kenny Root{ 59c74663799493f2b1e6123c18def94295d0afab7Kenny Root register FLAC__uint32 a, b, c, d; 60c74663799493f2b1e6123c18def94295d0afab7Kenny Root 61c74663799493f2b1e6123c18def94295d0afab7Kenny Root a = buf[0]; 62c74663799493f2b1e6123c18def94295d0afab7Kenny Root b = buf[1]; 63c74663799493f2b1e6123c18def94295d0afab7Kenny Root c = buf[2]; 64c74663799493f2b1e6123c18def94295d0afab7Kenny Root d = buf[3]; 65c74663799493f2b1e6123c18def94295d0afab7Kenny Root 66c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7); 67c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12); 68c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17); 69c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22); 70c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7); 71c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12); 72c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17); 73c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22); 74c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7); 75c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12); 76c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17); 77c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22); 78c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7); 79c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12); 80c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17); 81c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22); 82c74663799493f2b1e6123c18def94295d0afab7Kenny Root 83c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5); 84c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9); 85c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14); 86c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20); 87c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5); 88c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9); 89c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14); 90c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20); 91c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5); 92c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9); 93c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14); 94c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20); 95c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5); 96c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9); 97c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14); 98c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20); 99c74663799493f2b1e6123c18def94295d0afab7Kenny Root 100c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4); 101c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11); 102c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16); 103c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23); 104c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4); 105c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11); 106c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16); 107c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23); 108c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4); 109c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11); 110c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16); 111c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23); 112c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4); 113c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11); 114c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16); 115c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23); 116c74663799493f2b1e6123c18def94295d0afab7Kenny Root 117c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6); 118c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10); 119c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15); 120c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21); 121c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6); 122c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10); 123c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15); 124c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21); 125c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6); 126c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10); 127c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15); 128c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21); 129c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6); 130c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10); 131c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15); 132c74663799493f2b1e6123c18def94295d0afab7Kenny Root MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21); 133c74663799493f2b1e6123c18def94295d0afab7Kenny Root 134c74663799493f2b1e6123c18def94295d0afab7Kenny Root buf[0] += a; 135c74663799493f2b1e6123c18def94295d0afab7Kenny Root buf[1] += b; 136c74663799493f2b1e6123c18def94295d0afab7Kenny Root buf[2] += c; 137c74663799493f2b1e6123c18def94295d0afab7Kenny Root buf[3] += d; 138c74663799493f2b1e6123c18def94295d0afab7Kenny Root} 139c74663799493f2b1e6123c18def94295d0afab7Kenny Root 140c74663799493f2b1e6123c18def94295d0afab7Kenny Root#if WORDS_BIGENDIAN 141c74663799493f2b1e6123c18def94295d0afab7Kenny Root//@@@@@@ OPT: use bswap/intrinsics 142c74663799493f2b1e6123c18def94295d0afab7Kenny Rootstatic void byteSwap(FLAC__uint32 *buf, unsigned words) 143c74663799493f2b1e6123c18def94295d0afab7Kenny Root{ 144c74663799493f2b1e6123c18def94295d0afab7Kenny Root register FLAC__uint32 x; 145c74663799493f2b1e6123c18def94295d0afab7Kenny Root do { 146c74663799493f2b1e6123c18def94295d0afab7Kenny Root x = *buf; 147c74663799493f2b1e6123c18def94295d0afab7Kenny Root x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); 148c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf++ = (x >> 16) | (x << 16); 149c74663799493f2b1e6123c18def94295d0afab7Kenny Root } while (--words); 150c74663799493f2b1e6123c18def94295d0afab7Kenny Root} 151c74663799493f2b1e6123c18def94295d0afab7Kenny Rootstatic void byteSwapX16(FLAC__uint32 *buf) 152c74663799493f2b1e6123c18def94295d0afab7Kenny Root{ 153c74663799493f2b1e6123c18def94295d0afab7Kenny Root register FLAC__uint32 x; 154c74663799493f2b1e6123c18def94295d0afab7Kenny Root 155c74663799493f2b1e6123c18def94295d0afab7Kenny Root x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16); 156c74663799493f2b1e6123c18def94295d0afab7Kenny Root x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16); 157c74663799493f2b1e6123c18def94295d0afab7Kenny Root x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16); 158c74663799493f2b1e6123c18def94295d0afab7Kenny Root x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16); 159c74663799493f2b1e6123c18def94295d0afab7Kenny Root x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16); 160c74663799493f2b1e6123c18def94295d0afab7Kenny Root x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16); 161c74663799493f2b1e6123c18def94295d0afab7Kenny Root x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16); 162c74663799493f2b1e6123c18def94295d0afab7Kenny Root x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16); 163c74663799493f2b1e6123c18def94295d0afab7Kenny Root x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16); 164c74663799493f2b1e6123c18def94295d0afab7Kenny Root x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16); 165c74663799493f2b1e6123c18def94295d0afab7Kenny Root x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16); 166c74663799493f2b1e6123c18def94295d0afab7Kenny Root x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16); 167c74663799493f2b1e6123c18def94295d0afab7Kenny Root x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16); 168c74663799493f2b1e6123c18def94295d0afab7Kenny Root x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16); 169c74663799493f2b1e6123c18def94295d0afab7Kenny Root x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16); 170c74663799493f2b1e6123c18def94295d0afab7Kenny Root x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf = (x >> 16) | (x << 16); 171c74663799493f2b1e6123c18def94295d0afab7Kenny Root} 172c74663799493f2b1e6123c18def94295d0afab7Kenny Root#else 173c74663799493f2b1e6123c18def94295d0afab7Kenny Root#define byteSwap(buf, words) 174c74663799493f2b1e6123c18def94295d0afab7Kenny Root#define byteSwapX16(buf) 175c74663799493f2b1e6123c18def94295d0afab7Kenny Root#endif 176c74663799493f2b1e6123c18def94295d0afab7Kenny Root 177c74663799493f2b1e6123c18def94295d0afab7Kenny Root/* 178c74663799493f2b1e6123c18def94295d0afab7Kenny Root * Update context to reflect the concatenation of another buffer full 179c74663799493f2b1e6123c18def94295d0afab7Kenny Root * of bytes. 180c74663799493f2b1e6123c18def94295d0afab7Kenny Root */ 181c74663799493f2b1e6123c18def94295d0afab7Kenny Rootstatic void FLAC__MD5Update(FLAC__MD5Context *ctx, FLAC__byte const *buf, unsigned len) 182c74663799493f2b1e6123c18def94295d0afab7Kenny Root{ 183c74663799493f2b1e6123c18def94295d0afab7Kenny Root FLAC__uint32 t; 184c74663799493f2b1e6123c18def94295d0afab7Kenny Root 185c74663799493f2b1e6123c18def94295d0afab7Kenny Root /* Update byte count */ 186c74663799493f2b1e6123c18def94295d0afab7Kenny Root 187c74663799493f2b1e6123c18def94295d0afab7Kenny Root t = ctx->bytes[0]; 188c74663799493f2b1e6123c18def94295d0afab7Kenny Root if ((ctx->bytes[0] = t + len) < t) 189c74663799493f2b1e6123c18def94295d0afab7Kenny Root ctx->bytes[1]++; /* Carry from low to high */ 190c74663799493f2b1e6123c18def94295d0afab7Kenny Root 191c74663799493f2b1e6123c18def94295d0afab7Kenny Root t = 64 - (t & 0x3f); /* Space available in ctx->in (at least 1) */ 192c74663799493f2b1e6123c18def94295d0afab7Kenny Root if (t > len) { 193c74663799493f2b1e6123c18def94295d0afab7Kenny Root memcpy((FLAC__byte *)ctx->in + 64 - t, buf, len); 194c74663799493f2b1e6123c18def94295d0afab7Kenny Root return; 195c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 196c74663799493f2b1e6123c18def94295d0afab7Kenny Root /* First chunk is an odd size */ 197c74663799493f2b1e6123c18def94295d0afab7Kenny Root memcpy((FLAC__byte *)ctx->in + 64 - t, buf, t); 198c74663799493f2b1e6123c18def94295d0afab7Kenny Root byteSwapX16(ctx->in); 199c74663799493f2b1e6123c18def94295d0afab7Kenny Root FLAC__MD5Transform(ctx->buf, ctx->in); 200c74663799493f2b1e6123c18def94295d0afab7Kenny Root buf += t; 201c74663799493f2b1e6123c18def94295d0afab7Kenny Root len -= t; 202c74663799493f2b1e6123c18def94295d0afab7Kenny Root 203c74663799493f2b1e6123c18def94295d0afab7Kenny Root /* Process data in 64-byte chunks */ 204c74663799493f2b1e6123c18def94295d0afab7Kenny Root while (len >= 64) { 205c74663799493f2b1e6123c18def94295d0afab7Kenny Root memcpy(ctx->in, buf, 64); 206c74663799493f2b1e6123c18def94295d0afab7Kenny Root byteSwapX16(ctx->in); 207c74663799493f2b1e6123c18def94295d0afab7Kenny Root FLAC__MD5Transform(ctx->buf, ctx->in); 208c74663799493f2b1e6123c18def94295d0afab7Kenny Root buf += 64; 209c74663799493f2b1e6123c18def94295d0afab7Kenny Root len -= 64; 210c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 211c74663799493f2b1e6123c18def94295d0afab7Kenny Root 212c74663799493f2b1e6123c18def94295d0afab7Kenny Root /* Handle any remaining bytes of data. */ 213c74663799493f2b1e6123c18def94295d0afab7Kenny Root memcpy(ctx->in, buf, len); 214c74663799493f2b1e6123c18def94295d0afab7Kenny Root} 215c74663799493f2b1e6123c18def94295d0afab7Kenny Root 216c74663799493f2b1e6123c18def94295d0afab7Kenny Root/* 217c74663799493f2b1e6123c18def94295d0afab7Kenny Root * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious 218c74663799493f2b1e6123c18def94295d0afab7Kenny Root * initialization constants. 219c74663799493f2b1e6123c18def94295d0afab7Kenny Root */ 220c74663799493f2b1e6123c18def94295d0afab7Kenny Rootvoid FLAC__MD5Init(FLAC__MD5Context *ctx) 221c74663799493f2b1e6123c18def94295d0afab7Kenny Root{ 222c74663799493f2b1e6123c18def94295d0afab7Kenny Root ctx->buf[0] = 0x67452301; 223c74663799493f2b1e6123c18def94295d0afab7Kenny Root ctx->buf[1] = 0xefcdab89; 224c74663799493f2b1e6123c18def94295d0afab7Kenny Root ctx->buf[2] = 0x98badcfe; 225c74663799493f2b1e6123c18def94295d0afab7Kenny Root ctx->buf[3] = 0x10325476; 226c74663799493f2b1e6123c18def94295d0afab7Kenny Root 227c74663799493f2b1e6123c18def94295d0afab7Kenny Root ctx->bytes[0] = 0; 228c74663799493f2b1e6123c18def94295d0afab7Kenny Root ctx->bytes[1] = 0; 229c74663799493f2b1e6123c18def94295d0afab7Kenny Root 230c74663799493f2b1e6123c18def94295d0afab7Kenny Root ctx->internal_buf = 0; 231c74663799493f2b1e6123c18def94295d0afab7Kenny Root ctx->capacity = 0; 232c74663799493f2b1e6123c18def94295d0afab7Kenny Root} 233c74663799493f2b1e6123c18def94295d0afab7Kenny Root 234c74663799493f2b1e6123c18def94295d0afab7Kenny Root/* 235c74663799493f2b1e6123c18def94295d0afab7Kenny Root * Final wrapup - pad to 64-byte boundary with the bit pattern 236c74663799493f2b1e6123c18def94295d0afab7Kenny Root * 1 0* (64-bit count of bits processed, MSB-first) 237c74663799493f2b1e6123c18def94295d0afab7Kenny Root */ 238c74663799493f2b1e6123c18def94295d0afab7Kenny Rootvoid FLAC__MD5Final(FLAC__byte digest[16], FLAC__MD5Context *ctx) 239c74663799493f2b1e6123c18def94295d0afab7Kenny Root{ 240c74663799493f2b1e6123c18def94295d0afab7Kenny Root int count = ctx->bytes[0] & 0x3f; /* Number of bytes in ctx->in */ 241c74663799493f2b1e6123c18def94295d0afab7Kenny Root FLAC__byte *p = (FLAC__byte *)ctx->in + count; 242c74663799493f2b1e6123c18def94295d0afab7Kenny Root 243c74663799493f2b1e6123c18def94295d0afab7Kenny Root /* Set the first char of padding to 0x80. There is always room. */ 244c74663799493f2b1e6123c18def94295d0afab7Kenny Root *p++ = 0x80; 245c74663799493f2b1e6123c18def94295d0afab7Kenny Root 246c74663799493f2b1e6123c18def94295d0afab7Kenny Root /* Bytes of padding needed to make 56 bytes (-8..55) */ 247c74663799493f2b1e6123c18def94295d0afab7Kenny Root count = 56 - 1 - count; 248c74663799493f2b1e6123c18def94295d0afab7Kenny Root 249c74663799493f2b1e6123c18def94295d0afab7Kenny Root if (count < 0) { /* Padding forces an extra block */ 250c74663799493f2b1e6123c18def94295d0afab7Kenny Root memset(p, 0, count + 8); 251c74663799493f2b1e6123c18def94295d0afab7Kenny Root byteSwapX16(ctx->in); 252c74663799493f2b1e6123c18def94295d0afab7Kenny Root FLAC__MD5Transform(ctx->buf, ctx->in); 253c74663799493f2b1e6123c18def94295d0afab7Kenny Root p = (FLAC__byte *)ctx->in; 254c74663799493f2b1e6123c18def94295d0afab7Kenny Root count = 56; 255c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 256c74663799493f2b1e6123c18def94295d0afab7Kenny Root memset(p, 0, count); 257c74663799493f2b1e6123c18def94295d0afab7Kenny Root byteSwap(ctx->in, 14); 258c74663799493f2b1e6123c18def94295d0afab7Kenny Root 259c74663799493f2b1e6123c18def94295d0afab7Kenny Root /* Append length in bits and transform */ 260c74663799493f2b1e6123c18def94295d0afab7Kenny Root ctx->in[14] = ctx->bytes[0] << 3; 261c74663799493f2b1e6123c18def94295d0afab7Kenny Root ctx->in[15] = ctx->bytes[1] << 3 | ctx->bytes[0] >> 29; 262c74663799493f2b1e6123c18def94295d0afab7Kenny Root FLAC__MD5Transform(ctx->buf, ctx->in); 263c74663799493f2b1e6123c18def94295d0afab7Kenny Root 264c74663799493f2b1e6123c18def94295d0afab7Kenny Root byteSwap(ctx->buf, 4); 265c74663799493f2b1e6123c18def94295d0afab7Kenny Root memcpy(digest, ctx->buf, 16); 266c74663799493f2b1e6123c18def94295d0afab7Kenny Root memset(ctx, 0, sizeof(ctx)); /* In case it's sensitive */ 267c74663799493f2b1e6123c18def94295d0afab7Kenny Root if(0 != ctx->internal_buf) { 268c74663799493f2b1e6123c18def94295d0afab7Kenny Root free(ctx->internal_buf); 269c74663799493f2b1e6123c18def94295d0afab7Kenny Root ctx->internal_buf = 0; 270c74663799493f2b1e6123c18def94295d0afab7Kenny Root ctx->capacity = 0; 271c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 272c74663799493f2b1e6123c18def94295d0afab7Kenny Root} 273c74663799493f2b1e6123c18def94295d0afab7Kenny Root 274c74663799493f2b1e6123c18def94295d0afab7Kenny Root/* 275c74663799493f2b1e6123c18def94295d0afab7Kenny Root * Convert the incoming audio signal to a byte stream 276c74663799493f2b1e6123c18def94295d0afab7Kenny Root */ 277c74663799493f2b1e6123c18def94295d0afab7Kenny Rootstatic void format_input_(FLAC__byte *buf, const FLAC__int32 * const signal[], unsigned channels, unsigned samples, unsigned bytes_per_sample) 278c74663799493f2b1e6123c18def94295d0afab7Kenny Root{ 279c74663799493f2b1e6123c18def94295d0afab7Kenny Root unsigned channel, sample; 280c74663799493f2b1e6123c18def94295d0afab7Kenny Root register FLAC__int32 a_word; 281c74663799493f2b1e6123c18def94295d0afab7Kenny Root register FLAC__byte *buf_ = buf; 282c74663799493f2b1e6123c18def94295d0afab7Kenny Root 283c74663799493f2b1e6123c18def94295d0afab7Kenny Root#if WORDS_BIGENDIAN 284c74663799493f2b1e6123c18def94295d0afab7Kenny Root#else 285c74663799493f2b1e6123c18def94295d0afab7Kenny Root if(channels == 2 && bytes_per_sample == 2) { 286c74663799493f2b1e6123c18def94295d0afab7Kenny Root FLAC__int16 *buf1_ = ((FLAC__int16*)buf_) + 1; 287c74663799493f2b1e6123c18def94295d0afab7Kenny Root memcpy(buf_, signal[0], sizeof(FLAC__int32) * samples); 288c74663799493f2b1e6123c18def94295d0afab7Kenny Root for(sample = 0; sample < samples; sample++, buf1_+=2) 289c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf1_ = (FLAC__int16)signal[1][sample]; 290c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 291c74663799493f2b1e6123c18def94295d0afab7Kenny Root else if(channels == 1 && bytes_per_sample == 2) { 292c74663799493f2b1e6123c18def94295d0afab7Kenny Root FLAC__int16 *buf1_ = (FLAC__int16*)buf_; 293c74663799493f2b1e6123c18def94295d0afab7Kenny Root for(sample = 0; sample < samples; sample++) 294c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf1_++ = (FLAC__int16)signal[0][sample]; 295c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 296c74663799493f2b1e6123c18def94295d0afab7Kenny Root else 297c74663799493f2b1e6123c18def94295d0afab7Kenny Root#endif 298c74663799493f2b1e6123c18def94295d0afab7Kenny Root if(bytes_per_sample == 2) { 299c74663799493f2b1e6123c18def94295d0afab7Kenny Root if(channels == 2) { 300c74663799493f2b1e6123c18def94295d0afab7Kenny Root for(sample = 0; sample < samples; sample++) { 301c74663799493f2b1e6123c18def94295d0afab7Kenny Root a_word = signal[0][sample]; 302c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; a_word >>= 8; 303c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; 304c74663799493f2b1e6123c18def94295d0afab7Kenny Root a_word = signal[1][sample]; 305c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; a_word >>= 8; 306c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; 307c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 308c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 309c74663799493f2b1e6123c18def94295d0afab7Kenny Root else if(channels == 1) { 310c74663799493f2b1e6123c18def94295d0afab7Kenny Root for(sample = 0; sample < samples; sample++) { 311c74663799493f2b1e6123c18def94295d0afab7Kenny Root a_word = signal[0][sample]; 312c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; a_word >>= 8; 313c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; 314c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 315c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 316c74663799493f2b1e6123c18def94295d0afab7Kenny Root else { 317c74663799493f2b1e6123c18def94295d0afab7Kenny Root for(sample = 0; sample < samples; sample++) { 318c74663799493f2b1e6123c18def94295d0afab7Kenny Root for(channel = 0; channel < channels; channel++) { 319c74663799493f2b1e6123c18def94295d0afab7Kenny Root a_word = signal[channel][sample]; 320c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; a_word >>= 8; 321c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; 322c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 323c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 324c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 325c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 326c74663799493f2b1e6123c18def94295d0afab7Kenny Root else if(bytes_per_sample == 3) { 327c74663799493f2b1e6123c18def94295d0afab7Kenny Root if(channels == 2) { 328c74663799493f2b1e6123c18def94295d0afab7Kenny Root for(sample = 0; sample < samples; sample++) { 329c74663799493f2b1e6123c18def94295d0afab7Kenny Root a_word = signal[0][sample]; 330c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; a_word >>= 8; 331c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; a_word >>= 8; 332c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; 333c74663799493f2b1e6123c18def94295d0afab7Kenny Root a_word = signal[1][sample]; 334c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; a_word >>= 8; 335c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; a_word >>= 8; 336c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; 337c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 338c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 339c74663799493f2b1e6123c18def94295d0afab7Kenny Root else if(channels == 1) { 340c74663799493f2b1e6123c18def94295d0afab7Kenny Root for(sample = 0; sample < samples; sample++) { 341c74663799493f2b1e6123c18def94295d0afab7Kenny Root a_word = signal[0][sample]; 342c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; a_word >>= 8; 343c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; a_word >>= 8; 344c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; 345c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 346c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 347c74663799493f2b1e6123c18def94295d0afab7Kenny Root else { 348c74663799493f2b1e6123c18def94295d0afab7Kenny Root for(sample = 0; sample < samples; sample++) { 349c74663799493f2b1e6123c18def94295d0afab7Kenny Root for(channel = 0; channel < channels; channel++) { 350c74663799493f2b1e6123c18def94295d0afab7Kenny Root a_word = signal[channel][sample]; 351c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; a_word >>= 8; 352c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; a_word >>= 8; 353c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; 354c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 355c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 356c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 357c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 358c74663799493f2b1e6123c18def94295d0afab7Kenny Root else if(bytes_per_sample == 1) { 359c74663799493f2b1e6123c18def94295d0afab7Kenny Root if(channels == 2) { 360c74663799493f2b1e6123c18def94295d0afab7Kenny Root for(sample = 0; sample < samples; sample++) { 361c74663799493f2b1e6123c18def94295d0afab7Kenny Root a_word = signal[0][sample]; 362c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; 363c74663799493f2b1e6123c18def94295d0afab7Kenny Root a_word = signal[1][sample]; 364c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; 365c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 366c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 367c74663799493f2b1e6123c18def94295d0afab7Kenny Root else if(channels == 1) { 368c74663799493f2b1e6123c18def94295d0afab7Kenny Root for(sample = 0; sample < samples; sample++) { 369c74663799493f2b1e6123c18def94295d0afab7Kenny Root a_word = signal[0][sample]; 370c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; 371c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 372c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 373c74663799493f2b1e6123c18def94295d0afab7Kenny Root else { 374c74663799493f2b1e6123c18def94295d0afab7Kenny Root for(sample = 0; sample < samples; sample++) { 375c74663799493f2b1e6123c18def94295d0afab7Kenny Root for(channel = 0; channel < channels; channel++) { 376c74663799493f2b1e6123c18def94295d0afab7Kenny Root a_word = signal[channel][sample]; 377c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; 378c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 379c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 380c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 381c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 382c74663799493f2b1e6123c18def94295d0afab7Kenny Root else { /* bytes_per_sample == 4, maybe optimize more later */ 383c74663799493f2b1e6123c18def94295d0afab7Kenny Root for(sample = 0; sample < samples; sample++) { 384c74663799493f2b1e6123c18def94295d0afab7Kenny Root for(channel = 0; channel < channels; channel++) { 385c74663799493f2b1e6123c18def94295d0afab7Kenny Root a_word = signal[channel][sample]; 386c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; a_word >>= 8; 387c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; a_word >>= 8; 388c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; a_word >>= 8; 389c74663799493f2b1e6123c18def94295d0afab7Kenny Root *buf_++ = (FLAC__byte)a_word; 390c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 391c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 392c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 393c74663799493f2b1e6123c18def94295d0afab7Kenny Root} 394c74663799493f2b1e6123c18def94295d0afab7Kenny Root 395c74663799493f2b1e6123c18def94295d0afab7Kenny Root/* 396c74663799493f2b1e6123c18def94295d0afab7Kenny Root * Convert the incoming audio signal to a byte stream and FLAC__MD5Update it. 397c74663799493f2b1e6123c18def94295d0afab7Kenny Root */ 398c74663799493f2b1e6123c18def94295d0afab7Kenny RootFLAC__bool FLAC__MD5Accumulate(FLAC__MD5Context *ctx, const FLAC__int32 * const signal[], unsigned channels, unsigned samples, unsigned bytes_per_sample) 399c74663799493f2b1e6123c18def94295d0afab7Kenny Root{ 400c74663799493f2b1e6123c18def94295d0afab7Kenny Root const size_t bytes_needed = (size_t)channels * (size_t)samples * (size_t)bytes_per_sample; 401c74663799493f2b1e6123c18def94295d0afab7Kenny Root 402c74663799493f2b1e6123c18def94295d0afab7Kenny Root /* overflow check */ 403c74663799493f2b1e6123c18def94295d0afab7Kenny Root if((size_t)channels > SIZE_MAX / (size_t)bytes_per_sample) 404c74663799493f2b1e6123c18def94295d0afab7Kenny Root return false; 405c74663799493f2b1e6123c18def94295d0afab7Kenny Root if((size_t)channels * (size_t)bytes_per_sample > SIZE_MAX / (size_t)samples) 406c74663799493f2b1e6123c18def94295d0afab7Kenny Root return false; 407c74663799493f2b1e6123c18def94295d0afab7Kenny Root 408c74663799493f2b1e6123c18def94295d0afab7Kenny Root if(ctx->capacity < bytes_needed) { 409c74663799493f2b1e6123c18def94295d0afab7Kenny Root FLAC__byte *tmp = (FLAC__byte*)realloc(ctx->internal_buf, bytes_needed); 410c74663799493f2b1e6123c18def94295d0afab7Kenny Root if(0 == tmp) { 411c74663799493f2b1e6123c18def94295d0afab7Kenny Root free(ctx->internal_buf); 412c74663799493f2b1e6123c18def94295d0afab7Kenny Root if(0 == (ctx->internal_buf = (FLAC__byte*)safe_malloc_(bytes_needed))) 413c74663799493f2b1e6123c18def94295d0afab7Kenny Root return false; 414c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 415c74663799493f2b1e6123c18def94295d0afab7Kenny Root ctx->internal_buf = tmp; 416c74663799493f2b1e6123c18def94295d0afab7Kenny Root ctx->capacity = bytes_needed; 417c74663799493f2b1e6123c18def94295d0afab7Kenny Root } 418c74663799493f2b1e6123c18def94295d0afab7Kenny Root 419c74663799493f2b1e6123c18def94295d0afab7Kenny Root format_input_(ctx->internal_buf, signal, channels, samples, bytes_per_sample); 420c74663799493f2b1e6123c18def94295d0afab7Kenny Root 421c74663799493f2b1e6123c18def94295d0afab7Kenny Root FLAC__MD5Update(ctx, ctx->internal_buf, bytes_needed); 422c74663799493f2b1e6123c18def94295d0afab7Kenny Root 423c74663799493f2b1e6123c18def94295d0afab7Kenny Root return true; 424c74663799493f2b1e6123c18def94295d0afab7Kenny Root} 425