--- /dev/null
+/*
+ +----------------------------------------------------------------------+
+ | PHP Version 4 |
+ +----------------------------------------------------------------------+
+ | Copyright (c) 1997-2002 The PHP Group |
+ +----------------------------------------------------------------------+
+ | This source file is subject to version 2.02 of the PHP license, |
+ | that is bundled with this package in the file LICENSE, and is |
+ | available at through the world-wide-web at |
+ | http://www.php.net/license/2_02.txt. |
+ | If you did not receive a copy of the PHP license and are unable to |
+ | obtain it through the world-wide-web, please send a note to |
+ | license@php.net so we can mail you a copy immediately. |
+ +----------------------------------------------------------------------+
+ | Author: Stefan Esser <sesser@php.net> |
+ +----------------------------------------------------------------------+
+*/
+
+/* $Id$ */
+
+#include <stdio.h>
+#include "php.h"
+
+/* This code is heavily based on the PHP md5 implementation */
+
+#include "sha1.h"
+
+PHPAPI void make_sha1_digest(char *sha1str, unsigned char *digest)
+{
+ int i;
+
+ for (i = 0; i < 20; i++) {
+ sprintf(sha1str, "%02x", digest[i]);
+ sha1str += 2;
+ }
+
+ *sha1str = '\0';
+}
+
+/* {{{ proto string sha1(string str)
+ Calculate the sha1 hash of a string */
+PHP_FUNCTION(sha1)
+{
+ zval **arg;
+ char sha1str[41];
+ PHP_SHA1_CTX context;
+ unsigned char digest[20];
+
+ if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &arg) == FAILURE) {
+ WRONG_PARAM_COUNT;
+ }
+ convert_to_string_ex(arg);
+
+ sha1str[0] = '\0';
+ PHP_SHA1Init(&context);
+ PHP_SHA1Update(&context, Z_STRVAL_PP(arg), Z_STRLEN_PP(arg));
+ PHP_SHA1Final(digest, &context);
+ make_sha1_digest(sha1str, digest);
+ RETVAL_STRING(sha1str, 1);
+}
+
+/* }}} */
+
+/* {{{ proto string sha1_file(string filename)
+ Calculate the sha1 hash of given filename */
+PHP_FUNCTION(sha1_file)
+{
+ zval **arg;
+ char sha1str[41];
+ unsigned char buf[1024];
+ unsigned char digest[20];
+ PHP_SHA1_CTX context;
+ int n;
+ FILE *fp;
+
+ if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &arg) == FAILURE) {
+ WRONG_PARAM_COUNT;
+ }
+
+ convert_to_string_ex(arg);
+
+ if (PG(safe_mode) && (!php_checkuid(Z_STRVAL_PP(arg), NULL, CHECKUID_CHECK_FILE_AND_DIR))) {
+ RETURN_FALSE;
+ }
+
+ if (php_check_open_basedir(Z_STRVAL_PP(arg) TSRMLS_CC)) {
+ RETURN_FALSE;
+ }
+
+ if ((fp = VCWD_FOPEN(Z_STRVAL_PP(arg), "rb")) == NULL) {
+ php_error(E_WARNING, "md5_file(): Unable to open file");
+ RETURN_FALSE;
+ }
+
+ PHP_SHA1Init(&context);
+
+ while ((n = fread(buf, 1, sizeof(buf), fp)) > 0) {
+ PHP_SHA1Update(&context, buf, n);
+ }
+
+ PHP_SHA1Final(digest, &context);
+
+ if (ferror(fp)) {
+ fclose(fp);
+ RETURN_FALSE;
+ }
+
+ fclose(fp);
+
+ make_sha1_digest(sha1str, digest);
+
+ RETVAL_STRING(sha1str, 1);
+}
+/* }}} */
+
+
+static void SHA1Transform(php_uint32[5], const unsigned char[64]);
+static void SHA1Encode(unsigned char *, php_uint32 *, unsigned int);
+static void SHA1Decode(php_uint32 *, const unsigned char *, unsigned int);
+
+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 SHA1 functions.
+ */
+#define F(x, y, z) ((z) ^ ((x) & ((y) ^ (z))))
+#define G(x, y, z) ((x) ^ (y) ^ (z))
+#define H(x, y, z) (((x) & (y)) | ((z) & ((x) | (y))))
+#define I(x, y, z) ((x) ^ (y) ^ (z))
+
+/* ROTATE_LEFT rotates x left n bits.
+ */
+#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
+
+/* W[i]
+ */
+#define W(i) ( tmp=x[(i-3)&15]^x[(i-8)&15]^x[(i-14)&15]^x[i&15], \
+ (x[i&15]=ROTATE_LEFT(tmp, 1)) )
+
+/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
+ */
+#define FF(a, b, c, d, e, w) { \
+ (e) += F ((b), (c), (d)) + (w) + (php_uint32)(0x5A827999); \
+ (e) += ROTATE_LEFT ((a), 5); \
+ (b) = ROTATE_LEFT((b), 30); \
+ }
+#define GG(a, b, c, d, e, w) { \
+ (e) += G ((b), (c), (d)) + (w) + (php_uint32)(0x6ED9EBA1); \
+ (e) += ROTATE_LEFT ((a), 5); \
+ (b) = ROTATE_LEFT((b), 30); \
+ }
+#define HH(a, b, c, d, e, w) { \
+ (e) += H ((b), (c), (d)) + (w) + (php_uint32)(0x8F1BBCDC); \
+ (e) += ROTATE_LEFT ((a), 5); \
+ (b) = ROTATE_LEFT((b), 30); \
+ }
+#define II(a, b, c, d, e, w) { \
+ (e) += I ((b), (c), (d)) + (w) + (php_uint32)(0xCA62C1D6); \
+ (e) += ROTATE_LEFT ((a), 5); \
+ (b) = ROTATE_LEFT((b), 30); \
+ }
+
+
+/* {{{ PHP_SHA1Init
+ * SHA1 initialization. Begins an SHA1 operation, writing a new context.
+ */
+PHPAPI void PHP_SHA1Init(PHP_SHA1_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;
+ context->state[4] = 0xc3d2e1f0;
+}
+/* }}} */
+
+/* {{{ PHP_SHA1Update
+ SHA1 block update operation. Continues an SHA1 message-digest
+ operation, processing another message block, and updating the
+ context.
+ */
+PHPAPI void PHP_SHA1Update(PHP_SHA1_CTX * context, const unsigned char *input,
+ unsigned int inputLen)
+{
+ unsigned int i, index, partLen;
+
+ /* Compute number of bytes mod 64 */
+ index = (unsigned int) ((context->count[0] >> 3) & 0x3F);
+
+ /* Update number of bits */
+ if ((context->count[0] += ((php_uint32) inputLen << 3))
+ < ((php_uint32) inputLen << 3))
+ context->count[1]++;
+ context->count[1] += ((php_uint32) inputLen >> 29);
+
+ partLen = 64 - index;
+
+ /* Transform as many times as possible.
+ */
+ if (inputLen >= partLen) {
+ memcpy
+ ((unsigned char*) & context->buffer[index], (unsigned char*) input, partLen);
+ SHA1Transform(context->state, context->buffer);
+
+ for (i = partLen; i + 63 < inputLen; i += 64)
+ SHA1Transform(context->state, &input[i]);
+
+ index = 0;
+ } else
+ i = 0;
+
+ /* Buffer remaining input */
+ memcpy
+ ((unsigned char*) & context->buffer[index], (unsigned char*) & input[i],
+ inputLen - i);
+}
+/* }}} */
+
+/* {{{ PHP_SHA1Final
+ SHA1 finalization. Ends an SHA1 message-digest operation, writing the
+ the message digest and zeroizing the context.
+ */
+PHPAPI void PHP_SHA1Final(unsigned char digest[20], PHP_SHA1_CTX * context)
+{
+ unsigned char bits[8];
+ unsigned int index, padLen;
+
+ /* Save number of bits */
+ bits[7] = context->count[0] & 0xFF;
+ bits[6] = (context->count[0] >> 8) & 0xFF;
+ bits[5] = (context->count[0] >> 16) & 0xFF;
+ bits[4] = (context->count[0] >> 24) & 0xFF;
+ bits[3] = context->count[1] & 0xFF;
+ bits[2] = (context->count[1] >> 8) & 0xFF;
+ bits[1] = (context->count[1] >> 16) & 0xFF;
+ bits[0] = (context->count[1] >> 24) & 0xFF;
+
+ /* Pad out to 56 mod 64.
+ */
+ index = (unsigned int) ((context->count[0] >> 3) & 0x3f);
+ padLen = (index < 56) ? (56 - index) : (120 - index);
+ PHP_SHA1Update(context, PADDING, padLen);
+
+ /* Append length (before padding) */
+ PHP_SHA1Update(context, bits, 8);
+
+ /* Store state in digest */
+ SHA1Encode(digest, context->state, 20);
+
+ /* Zeroize sensitive information.
+ */
+ memset((unsigned char*) context, 0, sizeof(*context));
+}
+/* }}} */
+
+/* {{{ SHA1Transform
+ * SHA1 basic transformation. Transforms state based on block.
+ */
+static void SHA1Transform(state, block)
+php_uint32 state[5];
+const unsigned char block[64];
+{
+ php_uint32 a = state[0], b = state[1], c = state[2];
+ php_uint32 d = state[3], e = state[4], x[16], tmp;
+
+ SHA1Decode(x, block, 64);
+
+ /* Round 1 */
+ FF(a, b, c, d, e, x[0]); /* 1 */
+ FF(e, a, b, c, d, x[1]); /* 2 */
+ FF(d, e, a, b, c, x[2]); /* 3 */
+ FF(c, d, e, a, b, x[3]); /* 4 */
+ FF(b, c, d, e, a, x[4]); /* 5 */
+ FF(a, b, c, d, e, x[5]); /* 6 */
+ FF(e, a, b, c, d, x[6]); /* 7 */
+ FF(d, e, a, b, c, x[7]); /* 8 */
+ FF(c, d, e, a, b, x[8]); /* 9 */
+ FF(b, c, d, e, a, x[9]); /* 10 */
+ FF(a, b, c, d, e, x[10]); /* 11 */
+ FF(e, a, b, c, d, x[11]); /* 12 */
+ FF(d, e, a, b, c, x[12]); /* 13 */
+ FF(c, d, e, a, b, x[13]); /* 14 */
+ FF(b, c, d, e, a, x[14]); /* 15 */
+ FF(a, b, c, d, e, x[15]); /* 16 */
+ FF(e, a, b, c, d, W(16)); /* 17 */
+ FF(d, e, a, b, c, W(17)); /* 18 */
+ FF(c, d, e, a, b, W(18)); /* 19 */
+ FF(b, c, d, e, a, W(19)); /* 20 */
+
+ /* Round 2 */
+ GG(a, b, c, d, e, W(20)); /* 21 */
+ GG(e, a, b, c, d, W(21)); /* 22 */
+ GG(d, e, a, b, c, W(22)); /* 23 */
+ GG(c, d, e, a, b, W(23)); /* 24 */
+ GG(b, c, d, e, a, W(24)); /* 25 */
+ GG(a, b, c, d, e, W(25)); /* 26 */
+ GG(e, a, b, c, d, W(26)); /* 27 */
+ GG(d, e, a, b, c, W(27)); /* 28 */
+ GG(c, d, e, a, b, W(28)); /* 29 */
+ GG(b, c, d, e, a, W(29)); /* 30 */
+ GG(a, b, c, d, e, W(30)); /* 31 */
+ GG(e, a, b, c, d, W(31)); /* 32 */
+ GG(d, e, a, b, c, W(32)); /* 33 */
+ GG(c, d, e, a, b, W(33)); /* 34 */
+ GG(b, c, d, e, a, W(34)); /* 35 */
+ GG(a, b, c, d, e, W(35)); /* 36 */
+ GG(e, a, b, c, d, W(36)); /* 37 */
+ GG(d, e, a, b, c, W(37)); /* 38 */
+ GG(c, d, e, a, b, W(38)); /* 39 */
+ GG(b, c, d, e, a, W(39)); /* 40 */
+
+ /* Round 3 */
+ HH(a, b, c, d, e, W(40)); /* 41 */
+ HH(e, a, b, c, d, W(41)); /* 42 */
+ HH(d, e, a, b, c, W(42)); /* 43 */
+ HH(c, d, e, a, b, W(43)); /* 44 */
+ HH(b, c, d, e, a, W(44)); /* 45 */
+ HH(a, b, c, d, e, W(45)); /* 46 */
+ HH(e, a, b, c, d, W(46)); /* 47 */
+ HH(d, e, a, b, c, W(47)); /* 48 */
+ HH(c, d, e, a, b, W(48)); /* 49 */
+ HH(b, c, d, e, a, W(49)); /* 50 */
+ HH(a, b, c, d, e, W(50)); /* 51 */
+ HH(e, a, b, c, d, W(51)); /* 52 */
+ HH(d, e, a, b, c, W(52)); /* 53 */
+ HH(c, d, e, a, b, W(53)); /* 54 */
+ HH(b, c, d, e, a, W(54)); /* 55 */
+ HH(a, b, c, d, e, W(55)); /* 56 */
+ HH(e, a, b, c, d, W(56)); /* 57 */
+ HH(d, e, a, b, c, W(57)); /* 58 */
+ HH(c, d, e, a, b, W(58)); /* 59 */
+ HH(b, c, d, e, a, W(59)); /* 60 */
+
+ /* Round 4 */
+ II(a, b, c, d, e, W(60)); /* 61 */
+ II(e, a, b, c, d, W(61)); /* 62 */
+ II(d, e, a, b, c, W(62)); /* 63 */
+ II(c, d, e, a, b, W(63)); /* 64 */
+ II(b, c, d, e, a, W(64)); /* 65 */
+ II(a, b, c, d, e, W(65)); /* 66 */
+ II(e, a, b, c, d, W(66)); /* 67 */
+ II(d, e, a, b, c, W(67)); /* 68 */
+ II(c, d, e, a, b, W(68)); /* 69 */
+ II(b, c, d, e, a, W(69)); /* 70 */
+ II(a, b, c, d, e, W(70)); /* 71 */
+ II(e, a, b, c, d, W(71)); /* 72 */
+ II(d, e, a, b, c, W(72)); /* 73 */
+ II(c, d, e, a, b, W(73)); /* 74 */
+ II(b, c, d, e, a, W(74)); /* 75 */
+ II(a, b, c, d, e, W(75)); /* 76 */
+ II(e, a, b, c, d, W(76)); /* 77 */
+ II(d, e, a, b, c, W(77)); /* 78 */
+ II(c, d, e, a, b, W(78)); /* 79 */
+ II(b, c, d, e, a, W(79)); /* 80 */
+
+ state[0] += a;
+ state[1] += b;
+ state[2] += c;
+ state[3] += d;
+ state[4] += e;
+
+ /* Zeroize sensitive information. */
+ memset((unsigned char*) x, 0, sizeof(x));
+}
+/* }}} */
+
+/* {{{ SHA1Encode
+ Encodes input (php_uint32) into output (unsigned char). Assumes len is
+ a multiple of 4.
+ */
+static void SHA1Encode(output, input, len)
+unsigned char *output;
+php_uint32 *input;
+unsigned int len;
+{
+ unsigned int i, j;
+
+ for (i = 0, j = 0; j < len; i++, j += 4) {
+ output[j] = (unsigned char) ((input[i] >> 24) & 0xff);
+ output[j + 1] = (unsigned char) ((input[i] >> 16) & 0xff);
+ output[j + 2] = (unsigned char) ((input[i] >> 8) & 0xff);
+ output[j + 3] = (unsigned char) (input[i] & 0xff);
+ }
+}
+/* }}} */
+
+/* {{{ SHA1Decode
+ Decodes input (unsigned char) into output (php_uint32). Assumes len is
+ a multiple of 4.
+ */
+static void SHA1Decode(output, input, len)
+php_uint32 *output;
+const unsigned char *input;
+unsigned int len;
+{
+ unsigned int i, j;
+
+ for (i = 0, j = 0; j < len; i++, j += 4)
+ output[i] = ((php_uint32) input[j + 3]) | (((php_uint32) input[j + 2]) << 8) |
+ (((php_uint32) input[j + 1]) << 16) | (((php_uint32) input[j]) << 24);
+}
+/* }}} */
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ * vim600: sw=4 ts=4 fdm=marker
+ * vim<600: sw=4 ts=4
+ */
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