X-Git-Url: http://git.madism.org/?p=apps%2Fmadmutt.git;a=blobdiff_plain;f=md5c.c;h=02f4661fbdcebb15814173c651a0243a6c9a1aad;hp=2c2c564e9505a5355c167fd219188f1c1ccaa834;hb=28b09c881c2b1175298a3b94e09106f77a94eb88;hpb=6833ce8bdca2d64e14485118f2a4417b7e1cb1b1 diff --git a/md5c.c b/md5c.c index 2c2c564..02f4661 100644 --- a/md5c.c +++ b/md5c.c @@ -23,6 +23,10 @@ These notices must be retained in any copies of any part of this documentation and/or software. */ +#if HAVE_CONFIG_H +# include "config.h" +#endif + #include "md5.h" /* Constants for MD5Transform routine. @@ -45,7 +49,7 @@ documentation and/or software. #define S43 15 #define S44 21 -static void MD5Transform (uint32_t [4], unsigned char [64]); +static void MD5Transform (uint32_t[4], unsigned char[64]); static void Encode (unsigned char *, uint32_t *, unsigned int); static void Decode (uint32_t *, unsigned char *, unsigned int); static void MD5_memcpy (POINTER, POINTER, unsigned int); @@ -95,11 +99,11 @@ Rotation is separate from addition to prevent recomputation. /* MD5 initialization. Begins an MD5 operation, writing a new context. */ void MD5Init (context) -MD5_CTX *context; /* context */ + MD5_CTX *context; /* context */ { context->count[0] = context->count[1] = 0; /* Load magic initialization constants. -*/ + */ context->state[0] = 0x67452301; context->state[1] = 0xefcdab89; context->state[2] = 0x98badcfe; @@ -111,50 +115,48 @@ MD5_CTX *context; /* context */ context. */ void MD5Update (context, input, inputLen) -MD5_CTX *context; /* context */ -unsigned char *input; /* input block */ -unsigned int inputLen; /* length of input block */ + MD5_CTX *context; /* context */ + unsigned char *input; /* input block */ + unsigned int inputLen; /* length of input block */ { unsigned int i, index, partLen; /* Compute number of bytes mod 64 */ - index = (unsigned int)((context->count[0] >> 3) & 0x3F); + index = (unsigned int) ((context->count[0] >> 3) & 0x3F); /* Update number of bits */ - if ((context->count[0] += ((uint32_t)inputLen << 3)) - < ((uint32_t)inputLen << 3)) - context->count[1]++; - context->count[1] += ((uint32_t)inputLen >> 29); + if ((context->count[0] += ((uint32_t) inputLen << 3)) + < ((uint32_t) inputLen << 3)) + context->count[1]++; + context->count[1] += ((uint32_t) inputLen >> 29); partLen = 64 - index; /* Transform as many times as possible. -*/ + */ if (inputLen >= partLen) { - MD5_memcpy - ((POINTER)&context->buffer[index], (POINTER)input, partLen); - MD5Transform (context->state, context->buffer); + MD5_memcpy ((POINTER) & context->buffer[index], (POINTER) input, partLen); + MD5Transform (context->state, context->buffer); - for (i = partLen; i + 63 < inputLen; i += 64) - MD5Transform (context->state, &input[i]); + for (i = partLen; i + 63 < inputLen; i += 64) + MD5Transform (context->state, &input[i]); - index = 0; + index = 0; } else - i = 0; + i = 0; /* Buffer remaining input */ MD5_memcpy - ((POINTER)&context->buffer[index], (POINTER)&input[i], - inputLen-i); + ((POINTER) & context->buffer[index], (POINTER) & input[i], inputLen - i); } /* 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]; /* message digest */ -MD5_CTX *context; /* context */ + unsigned char digest[16]; /* message digest */ + MD5_CTX *context; /* context */ { unsigned char bits[8]; unsigned int index, padLen; @@ -163,8 +165,8 @@ MD5_CTX *context; /* context */ Encode (bits, context->count, 8); /* Pad out to 56 mod 64. -*/ - index = (unsigned int)((context->count[0] >> 3) & 0x3f); + */ + index = (unsigned int) ((context->count[0] >> 3) & 0x3f); padLen = (index < 56) ? (56 - index) : (120 - index); MD5Update (context, PADDING, padLen); @@ -174,91 +176,91 @@ MD5_CTX *context; /* context */ Encode (digest, context->state, 16); /* Zeroize sensitive information. -*/ - MD5_memset ((POINTER)context, 0, sizeof (*context)); + */ + MD5_memset ((POINTER) context, 0, sizeof (*context)); } /* MD5 basic transformation. Transforms state based on block. */ static void MD5Transform (state, block) -uint32_t state[4]; -unsigned char block[64]; + uint32_t state[4]; + unsigned char block[64]; { uint32_t a = state[0], b = state[1], c = state[2], d = state[3], x[16]; Decode (x, block, 64); /* Round 1 */ - 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 */ - 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 */ + 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 */ + 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 */ - 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 */ + 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 */ - 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 */ + 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; @@ -266,24 +268,24 @@ unsigned char block[64]; state[3] += d; /* Zeroize sensitive information. */ - MD5_memset ((POINTER)x, 0, sizeof (x)); + MD5_memset ((POINTER) x, 0, sizeof (x)); } /* Encodes input (uint32_t) into output (unsigned char). Assumes len is a multiple of 4. */ static void Encode (output, input, len) -unsigned char *output; -uint32_t *input; -unsigned int len; + unsigned char *output; + uint32_t *input; + unsigned int len; { unsigned int i, j; for (i = 0, j = 0; j < len; i++, j += 4) { - output[j] = (unsigned char)(input[i] & 0xff); - output[j+1] = (unsigned char)((input[i] >> 8) & 0xff); - output[j+2] = (unsigned char)((input[i] >> 16) & 0xff); - output[j+3] = (unsigned char)((input[i] >> 24) & 0xff); + output[j] = (unsigned char) (input[i] & 0xff); + output[j + 1] = (unsigned char) ((input[i] >> 8) & 0xff); + output[j + 2] = (unsigned char) ((input[i] >> 16) & 0xff); + output[j + 3] = (unsigned char) ((input[i] >> 24) & 0xff); } } @@ -291,40 +293,40 @@ unsigned int len; a multiple of 4. */ static void Decode (output, input, len) -uint32_t *output; -unsigned char *input; -unsigned int len; + uint32_t *output; + unsigned char *input; + unsigned int len; { unsigned int i, j; for (i = 0, j = 0; j < len; i++, j += 4) - output[i] = ((uint32_t)input[j]) | (((uint32_t)input[j+1]) << 8) | - (((uint32_t)input[j+2]) << 16) | (((uint32_t)input[j+3]) << 24); + output[i] = ((uint32_t) input[j]) | (((uint32_t) input[j + 1]) << 8) | + (((uint32_t) input[j + 2]) << 16) | (((uint32_t) input[j + 3]) << 24); } /* Note: Replace "for loop" with standard memcpy if possible. */ static void MD5_memcpy (output, input, len) -POINTER output; -POINTER input; -unsigned int len; + POINTER output; + POINTER input; + unsigned int len; { unsigned int i; for (i = 0; i < len; i++) - output[i] = input[i]; + output[i] = input[i]; } /* Note: Replace "for loop" with standard memset if possible. */ static void MD5_memset (output, value, len) -POINTER output; -int value; -unsigned int len; + POINTER output; + int value; + unsigned int len; { unsigned int i; for (i = 0; i < len; i++) - ((char *)output)[i] = (char)value; + ((char *) output)[i] = (char) value; }