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util-src/hashes.c @ 2512:d04b0eeeb954
mod_console: Update !! shortcut for new connection API
author | Matthew Wild <mwild1@gmail.com> |
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date | Thu, 28 Jan 2010 15:17:55 +0000 |
parent | 896:2c0b9e3c11c3 |
child | 2923:b7049746bd29 |
rev | line source |
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896 | 1 /* Prosody IM v0.4 |
520 | 2 -- Copyright (C) 2008 Matthew Wild |
3 -- Copyright (C) 2008 Waqas Hussain | |
4 -- | |
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5 -- This project is MIT/X11 licensed. Please see the |
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6 -- COPYING file in the source package for more information. |
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7 -- |
520 | 8 */ |
9 | |
10 | |
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11 /* |
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12 * hashes.c |
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13 * Lua library for sha1, sha256 and md5 hashes |
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14 */ |
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15 |
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16 #include <string.h> |
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17 |
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18 #include "lua.h" |
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19 #include "lauxlib.h" |
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20 #include <openssl/sha.h> |
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21 #include <openssl/md5.h> |
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22 |
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23 const char* hex_tab = "0123456789abcdef"; |
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24 void toHex(const char* in, int length, char* out) { |
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25 int i; |
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26 for (i = 0; i < length; i++) { |
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27 out[i*2] = hex_tab[(in[i] >> 4) & 0xF]; |
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28 out[i*2+1] = hex_tab[(in[i]) & 0xF]; |
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29 } |
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30 } |
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31 |
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32 #define MAKE_HASH_FUNCTION(myFunc, func, size) \ |
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33 static int myFunc(lua_State *L) { \ |
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34 size_t len; \ |
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35 const char *s = luaL_checklstring(L, 1, &len); \ |
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36 int hex_out = lua_toboolean(L, 2); \ |
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37 char hash[size]; \ |
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38 char result[size*2]; \ |
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39 func((const unsigned char*)s, len, (unsigned char*)hash); \ |
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40 if (hex_out) { \ |
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41 toHex(hash, size, result); \ |
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42 lua_pushlstring(L, result, size*2); \ |
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43 } else { \ |
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44 lua_pushlstring(L, hash, size);\ |
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45 } \ |
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46 return 1; \ |
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47 } |
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48 |
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49 MAKE_HASH_FUNCTION(Lsha1, SHA1, 20) |
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50 MAKE_HASH_FUNCTION(Lsha256, SHA256, 32) |
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51 MAKE_HASH_FUNCTION(Lmd5, MD5, 16) |
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52 |
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53 static const luaL_Reg Reg[] = |
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54 { |
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55 { "sha1", Lsha1 }, |
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56 { "sha256", Lsha256 }, |
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57 { "md5", Lmd5 }, |
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58 { NULL, NULL } |
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59 }; |
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60 |
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61 LUALIB_API int luaopen_util_hashes(lua_State *L) |
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62 { |
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63 luaL_register(L, "hashes", Reg); |
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64 lua_pushliteral(L, "version"); /** version */ |
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65 lua_pushliteral(L, "-3.14"); |
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66 lua_settable(L,-3); |
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67 return 1; |
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68 } |