author | Matthew Wild <mwild1@gmail.com> |
Sun, 19 Jan 2020 15:50:32 +0000 | |
branch | 0.11 |
changeset 10607 | dbd60f473164 |
parent 9966 | 29bc3dff3419 |
child 9967 | 90a3cd25f2ae |
child 11545 | 13b84682518e |
permissions | -rw-r--r-- |
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/* Prosody IM |
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-- Copyright (C) 2009-2010 Matthew Wild |
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-- Copyright (C) 2009-2010 Waqas Hussain |
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-- |
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-- This project is MIT/X11 licensed. Please see the |
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-- COPYING file in the source package for more information. |
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-- |
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*/ |
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/* |
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* hashes.c |
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* Lua library for sha1, sha256 and md5 hashes |
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*/ |
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|
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#include <string.h> |
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#include <stdlib.h> |
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#ifdef _MSC_VER |
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typedef unsigned __int32 uint32_t; |
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#else |
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#include <inttypes.h> |
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#endif |
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#include "lua.h" |
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#include "lauxlib.h" |
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#include <openssl/sha.h> |
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#include <openssl/md5.h> |
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#include <openssl/hmac.h> |
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#if (LUA_VERSION_NUM == 501) |
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#define luaL_setfuncs(L, R, N) luaL_register(L, NULL, R) |
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#endif |
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#define HMAC_IPAD 0x36363636 |
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#define HMAC_OPAD 0x5c5c5c5c |
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const char *hex_tab = "0123456789abcdef"; |
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void toHex(const unsigned char *in, int length, unsigned char *out) { |
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int i; |
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for(i = 0; i < length; i++) { |
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out[i * 2] = hex_tab[(in[i] >> 4) & 0xF]; |
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out[i * 2 + 1] = hex_tab[(in[i]) & 0xF]; |
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} |
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} |
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#define MAKE_HASH_FUNCTION(myFunc, func, size) \ |
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static int myFunc(lua_State *L) { \ |
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size_t len; \ |
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const char *s = luaL_checklstring(L, 1, &len); \ |
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int hex_out = lua_toboolean(L, 2); \ |
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unsigned char hash[size], result[size*2]; \ |
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func((const unsigned char*)s, len, hash); \ |
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if (hex_out) { \ |
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toHex(hash, size, result); \ |
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lua_pushlstring(L, (char*)result, size*2); \ |
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} else { \ |
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lua_pushlstring(L, (char*)hash, size);\ |
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} \ |
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return 1; \ |
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} |
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MAKE_HASH_FUNCTION(Lsha1, SHA1, SHA_DIGEST_LENGTH) |
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MAKE_HASH_FUNCTION(Lsha224, SHA224, SHA224_DIGEST_LENGTH) |
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MAKE_HASH_FUNCTION(Lsha256, SHA256, SHA256_DIGEST_LENGTH) |
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MAKE_HASH_FUNCTION(Lsha384, SHA384, SHA384_DIGEST_LENGTH) |
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MAKE_HASH_FUNCTION(Lsha512, SHA512, SHA512_DIGEST_LENGTH) |
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MAKE_HASH_FUNCTION(Lmd5, MD5, MD5_DIGEST_LENGTH) |
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struct hash_desc { |
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int (*Init)(void *); |
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int (*Update)(void *, const void *, size_t); |
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int (*Final)(unsigned char *, void *); |
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size_t digestLength; |
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void *ctx, *ctxo; |
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}; |
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static void hmac(struct hash_desc *desc, const char *key, size_t key_len, |
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const char *msg, size_t msg_len, unsigned char *result) { |
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union xory { |
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unsigned char bytes[64]; |
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uint32_t quadbytes[16]; |
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}; |
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int i; |
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unsigned char hashedKey[64]; /* Maximum used digest length */ |
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union xory k_ipad, k_opad; |
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if(key_len > 64) { |
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desc->Init(desc->ctx); |
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desc->Update(desc->ctx, key, key_len); |
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desc->Final(hashedKey, desc->ctx); |
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key = (const char *)hashedKey; |
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key_len = desc->digestLength; |
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} |
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memcpy(k_ipad.bytes, key, key_len); |
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memset(k_ipad.bytes + key_len, 0, 64 - key_len); |
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memcpy(k_opad.bytes, k_ipad.bytes, 64); |
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100 |
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101 |
for(i = 0; i < 16; i++) { |
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102 |
k_ipad.quadbytes[i] ^= HMAC_IPAD; |
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103 |
k_opad.quadbytes[i] ^= HMAC_OPAD; |
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104 |
} |
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105 |
|
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106 |
desc->Init(desc->ctx); |
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107 |
desc->Update(desc->ctx, k_ipad.bytes, 64); |
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108 |
desc->Init(desc->ctxo); |
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109 |
desc->Update(desc->ctxo, k_opad.bytes, 64); |
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110 |
desc->Update(desc->ctx, msg, msg_len); |
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111 |
desc->Final(result, desc->ctx); |
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112 |
desc->Update(desc->ctxo, result, desc->digestLength); |
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113 |
desc->Final(result, desc->ctxo); |
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114 |
} |
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115 |
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116 |
#define MAKE_HMAC_FUNCTION(myFunc, evp, size, type) \ |
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117 |
static int myFunc(lua_State *L) { \ |
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118 |
unsigned char hash[size], result[2*size]; \ |
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119 |
size_t key_len, msg_len; \ |
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120 |
unsigned int out_len; \ |
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121 |
const char *key = luaL_checklstring(L, 1, &key_len); \ |
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122 |
const char *msg = luaL_checklstring(L, 2, &msg_len); \ |
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123 |
const int hex_out = lua_toboolean(L, 3); \ |
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124 |
HMAC(evp(), key, key_len, (const unsigned char*)msg, msg_len, (unsigned char*)hash, &out_len); \ |
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125 |
if (hex_out) { \ |
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126 |
toHex(hash, out_len, result); \ |
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127 |
lua_pushlstring(L, (char*)result, out_len*2); \ |
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128 |
} else { \ |
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129 |
lua_pushlstring(L, (char*)hash, out_len); \ |
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130 |
} \ |
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131 |
return 1; \ |
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132 |
} |
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133 |
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134 |
MAKE_HMAC_FUNCTION(Lhmac_sha1, EVP_sha1, SHA_DIGEST_LENGTH, SHA_CTX) |
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135 |
MAKE_HMAC_FUNCTION(Lhmac_sha256, EVP_sha256, SHA256_DIGEST_LENGTH, SHA256_CTX) |
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136 |
MAKE_HMAC_FUNCTION(Lhmac_sha512, EVP_sha512, SHA512_DIGEST_LENGTH, SHA512_CTX) |
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137 |
MAKE_HMAC_FUNCTION(Lhmac_md5, EVP_md5, MD5_DIGEST_LENGTH, MD5_CTX) |
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138 |
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139 |
static int LscramHi(lua_State *L) { |
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140 |
union xory { |
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141 |
unsigned char bytes[SHA_DIGEST_LENGTH]; |
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142 |
uint32_t quadbytes[SHA_DIGEST_LENGTH / 4]; |
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143 |
}; |
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144 |
int i; |
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145 |
SHA_CTX ctx, ctxo; |
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146 |
unsigned char Ust[SHA_DIGEST_LENGTH]; |
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147 |
union xory Und; |
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148 |
union xory res; |
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149 |
size_t str_len, salt_len; |
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150 |
struct hash_desc desc; |
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151 |
const char *str = luaL_checklstring(L, 1, &str_len); |
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152 |
const char *salt = luaL_checklstring(L, 2, &salt_len); |
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153 |
char *salt2; |
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154 |
const int iter = luaL_checkinteger(L, 3); |
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155 |
|
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156 |
desc.Init = (int (*)(void *))SHA1_Init; |
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157 |
desc.Update = (int (*)(void *, const void *, size_t))SHA1_Update; |
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158 |
desc.Final = (int (*)(unsigned char *, void *))SHA1_Final; |
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159 |
desc.digestLength = SHA_DIGEST_LENGTH; |
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160 |
desc.ctx = &ctx; |
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161 |
desc.ctxo = &ctxo; |
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162 |
|
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163 |
salt2 = malloc(salt_len + 4); |
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164 |
|
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165 |
if(salt2 == NULL) { |
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166 |
return luaL_error(L, "Out of memory in scramHi"); |
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167 |
} |
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168 |
|
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169 |
memcpy(salt2, salt, salt_len); |
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170 |
memcpy(salt2 + salt_len, "\0\0\0\1", 4); |
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171 |
hmac(&desc, str, str_len, salt2, salt_len + 4, Ust); |
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172 |
free(salt2); |
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173 |
|
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174 |
memcpy(res.bytes, Ust, sizeof(res)); |
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175 |
|
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176 |
for(i = 1; i < iter; i++) { |
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177 |
int j; |
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178 |
hmac(&desc, str, str_len, (char *)Ust, sizeof(Ust), Und.bytes); |
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179 |
|
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180 |
for(j = 0; j < SHA_DIGEST_LENGTH / 4; j++) { |
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181 |
res.quadbytes[j] ^= Und.quadbytes[j]; |
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182 |
} |
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183 |
|
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184 |
memcpy(Ust, Und.bytes, sizeof(Ust)); |
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185 |
} |
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186 |
|
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187 |
lua_pushlstring(L, (char *)res.bytes, SHA_DIGEST_LENGTH); |
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188 |
|
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189 |
return 1; |
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190 |
} |
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191 |
|
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util-src/*.c: astyle --indent=tab --brackets=attach --indent-switches --break-blocks --pad-oper --unpad-paren --add-brackets --align-pointer=type --lineend=linux
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static const luaL_Reg Reg[] = { |
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15464633d8fb
util.hmac, util.hashes: Implement HMAC functions in C, and move to util.hashes
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193 |
{ "sha1", Lsha1 }, |
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194 |
{ "sha224", Lsha224 }, |
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195 |
{ "sha256", Lsha256 }, |
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196 |
{ "sha384", Lsha384 }, |
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197 |
{ "sha512", Lsha512 }, |
15464633d8fb
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198 |
{ "md5", Lmd5 }, |
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199 |
{ "hmac_sha1", Lhmac_sha1 }, |
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200 |
{ "hmac_sha256", Lhmac_sha256 }, |
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201 |
{ "hmac_sha512", Lhmac_sha512 }, |
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202 |
{ "hmac_md5", Lhmac_md5 }, |
5538
62089c9c142d
util.hashes, util.sasl.scram: Implement SCRAM-SHA1's Hi in C
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203 |
{ "scram_Hi_sha1", LscramHi }, |
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util.hmac, util.hashes: Implement HMAC functions in C, and move to util.hashes
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204 |
{ NULL, NULL } |
766
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Licensing/version updates for some files (forgot to commit, doh...)
Matthew Wild <mwild1@gmail.com>
parents:
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205 |
}; |
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206 |
|
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util-src/*.c: Attach pointer * to name instead of type
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207 |
LUALIB_API int luaopen_util_hashes(lua_State *L) { |
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util-src: Make C modules assert that the Lua runtime matches what it was compiled for
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208 |
#if (LUA_VERSION_NUM > 501) |
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luaL_checkversion(L); |
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#endif |
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util-src/*.c: Don't create globals when loaded
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lua_newtable(L); |
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6b180e77c97a
util-src/*.c: Invert Lua 5.2 compat to be 5.2+ by default and a macro to support 5.1
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luaL_setfuncs(L, Reg, 0);; |
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lua_pushliteral(L, "-3.14"); |
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util-src/*.c: Use the more concise lua_setfield
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lua_setfield(L, -2, "version"); |
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215 |
return 1; |
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216 |
} |