glibc/glibc-2.7-mdv-wrapper_handle_sha.patch

--- crypt/wrapper.c.org	2008-06-17 13:29:30.000000000 -0600
+++ crypt/wrapper.c	2008-06-17 15:33:47.000000000 -0600
@@ -43,6 +43,10 @@ extern char *_crypt_gensalt_extended_rn(
 	__CONST char *input, int size, char *output, int output_size);
 extern char *_crypt_gensalt_md5_rn(unsigned long count,
 	__CONST char *input, int size, char *output, int output_size);
+extern char *_crypt_gensalt_sha256c_rn(unsigned long count,
+	__CONST char *input, int size, char *output, int output_size);
+extern char *_crypt_gensalt_sha512c_rn(unsigned long count,
+	__CONST char *input, int size, char *output, int output_size);
 
 #if defined(__GLIBC__) && defined(_LIBC)
 /* crypt.h from glibc-crypt-2.1 will define struct crypt_data for us */
@@ -54,6 +58,11 @@ extern char *__md5_crypt_r(const char *k
 extern char *__des_crypt_r(const char *key, const char *salt,
 	struct crypt_data *data);
 extern struct crypt_data _ufc_foobar;
+/* support for sha256-crypt and sha512-crypt */
+extern char *__sha256_crypt_r (const char *key, const char *salt,
+			       char *buffer, int buflen);
+extern char *__sha512_crypt_r (const char *key, const char *salt,
+			       char *buffer, int buflen);
 #endif
 
 static int _crypt_data_alloc(void **data, int *size, int need)
@@ -142,6 +151,10 @@ char *__crypt_rn(__const char *key, __co
 		return _crypt_blowfish_rn(key, setting, (char *)data, size);
 	if (setting[0] == '$' && setting[1] == '1')
 		return __md5_crypt_r(key, setting, (char *)data, size);
+	if (setting[0] == '$' && setting[1] == '5')
+		return __sha256_crypt_r(key, setting, (char *)data, size);
+	if (setting[0] == '$' && setting[1] == '6')
+		return __sha512_crypt_r(key, setting, (char *)data, size);
 	if (setting[0] == '$') goto out_einval;
 	if (setting[0] == '_') {
 		if (size < sizeof(struct _crypt_extended_data)) goto out_erange;
@@ -181,6 +194,16 @@ char *__crypt_ra(__const char *key, __co
 			return NULL;
 		return __md5_crypt_r(key, setting, (char *)*data, *size);
 	}
+	if (setting[0] == '$' && setting[1] == '5') {
+		if (_crypt_data_alloc(data, size, CRYPT_OUTPUT_SIZE))
+			return NULL;
+		return __sha256_crypt_r(key, setting, (char *)*data, *size);
+	}
+	if (setting[0] == '$' && setting[1] == '6') {
+		if (_crypt_data_alloc(data, size, CRYPT_OUTPUT_SIZE))
+			return NULL;
+		return __sha512_crypt_r(key, setting, (char *)*data, *size);
+	}
 	if (setting[0] == '$') goto out_einval;
 	if (setting[0] == '_') {
 		if (_crypt_data_alloc(data, size,
@@ -271,6 +294,12 @@ char *__crypt_gensalt_rn(__CONST char *p
 	if (!strncmp(prefix, "$1$", 3))
 		use = _crypt_gensalt_md5_rn;
 	else
+	if (!strncmp(prefix, "$5$", 3))
+		use = _crypt_gensalt_sha256c_rn;
+	else
+	if (!strncmp(prefix, "$6$", 3))
+		use = _crypt_gensalt_sha512c_rn;
+	else
 	if (prefix[0] == '_')
 		use = _crypt_gensalt_extended_rn;
 	else
--- crypt/crypt_gensalt.c.org	2008-06-17 13:31:49.000000000 -0600
+++ crypt/crypt_gensalt.c	2008-06-17 15:30:35.000000000 -0600
@@ -109,3 +109,78 @@ char *_crypt_gensalt_md5_rn(unsigned lon
 
 	return output;
 }
+
+char *_crypt_gensalt_sha256c_rn(unsigned long count,
+	__CONST char *input, int size, char *output, int output_size)
+{
+	unsigned long value;
+
+	if (size < 3 || output_size < 3 + 4 + 1 || (count && count != 1000)) {
+		if (output_size > 0) output[0] = '\0';
+		__set_errno((output_size < 3 + 4 + 1) ? ERANGE : EINVAL);
+		return NULL;
+	}
+
+	output[0] = '$';
+	output[1] = '5';
+	output[2] = '$';
+	value = (unsigned long)(unsigned char)input[0] |
+		((unsigned long)(unsigned char)input[1] << 8) |
+		((unsigned long)(unsigned char)input[2] << 16);
+	output[3] = _crypt_itoa64[value & 0x3f];
+	output[4] = _crypt_itoa64[(value >> 6) & 0x3f];
+	output[5] = _crypt_itoa64[(value >> 12) & 0x3f];
+	output[6] = _crypt_itoa64[(value >> 18) & 0x3f];
+	output[7] = '\0';
+
+	if (size >= 6 && output_size >= 3 + 4 + 4 + 1) {
+		value = (unsigned long)(unsigned char)input[3] |
+			((unsigned long)(unsigned char)input[4] << 8) |
+			((unsigned long)(unsigned char)input[5] << 16);
+		output[7] = _crypt_itoa64[value & 0x3f];
+		output[8] = _crypt_itoa64[(value >> 6) & 0x3f];
+		output[9] = _crypt_itoa64[(value >> 12) & 0x3f];
+		output[10] = _crypt_itoa64[(value >> 18) & 0x3f];
+		output[11] = '\0';
+	}
+
+	return output;
+}
+
+
+char *_crypt_gensalt_sha512c_rn(unsigned long count,
+	__CONST char *input, int size, char *output, int output_size)
+{
+	unsigned long value;
+
+	if (size < 3 || output_size < 3 + 4 + 1 || (count && count != 1000)) {
+		if (output_size > 0) output[0] = '\0';
+		__set_errno((output_size < 3 + 4 + 1) ? ERANGE : EINVAL);
+		return NULL;
+	}
+
+	output[0] = '$';
+	output[1] = '6';
+	output[2] = '$';
+	value = (unsigned long)(unsigned char)input[0] |
+		((unsigned long)(unsigned char)input[1] << 8) |
+		((unsigned long)(unsigned char)input[2] << 16);
+	output[3] = _crypt_itoa64[value & 0x3f];
+	output[4] = _crypt_itoa64[(value >> 6) & 0x3f];
+	output[5] = _crypt_itoa64[(value >> 12) & 0x3f];
+	output[6] = _crypt_itoa64[(value >> 18) & 0x3f];
+	output[7] = '\0';
+
+	if (size >= 6 && output_size >= 3 + 4 + 4 + 1) {
+		value = (unsigned long)(unsigned char)input[3] |
+			((unsigned long)(unsigned char)input[4] << 8) |
+			((unsigned long)(unsigned char)input[5] << 16);
+		output[7] = _crypt_itoa64[value & 0x3f];
+		output[8] = _crypt_itoa64[(value >> 6) & 0x3f];
+		output[9] = _crypt_itoa64[(value >> 12) & 0x3f];
+		output[10] = _crypt_itoa64[(value >> 18) & 0x3f];
+		output[11] = '\0';
+	}
+
+	return output;
+}