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util-src/hashes.c @ 654:f1b4196ce745
Fix incorrect version number as tag (again) (again)
author | Matthew Wild <mwild1@gmail.com> |
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date | Sat, 27 Dec 2008 16:00:28 +0000 |
parent | 520:e96ac4bb6dd8 |
child | 766:433a5226267f |
rev | line source |
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520 | 1 /* Prosody IM v0.1 |
2 -- Copyright (C) 2008 Matthew Wild | |
3 -- Copyright (C) 2008 Waqas Hussain | |
4 -- | |
5 -- This program is free software; you can redistribute it and/or | |
6 -- modify it under the terms of the GNU General Public License | |
7 -- as published by the Free Software Foundation; either version 2 | |
8 -- of the License, or (at your option) any later version. | |
9 -- | |
10 -- This program is distributed in the hope that it will be useful, | |
11 -- but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 -- GNU General Public License for more details. | |
14 -- | |
15 -- You should have received a copy of the GNU General Public License | |
16 -- along with this program; if not, write to the Free Software | |
17 -- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | |
18 */ | |
19 | |
20 | |
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21 /* |
417 | 22 * hashes.c |
23 * Lua library for sha1, sha256 and md5 hashes | |
416
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24 */ |
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25 |
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26 #include <string.h> |
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27 |
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28 #include "lua.h" |
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29 #include "lauxlib.h" |
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30 #include <openssl/sha.h> |
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31 #include <openssl/md5.h> |
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32 |
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33 const char* hex_tab = "0123456789abcdef"; |
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34 void toHex(const char* in, int length, char* out) { |
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35 int i; |
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36 for (i = 0; i < length; i++) { |
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37 out[i*2] = hex_tab[(in[i] >> 4) & 0xF]; |
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38 out[i*2+1] = hex_tab[(in[i]) & 0xF]; |
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39 } |
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40 } |
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41 |
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42 #define MAKE_HASH_FUNCTION(myFunc, func, size) \ |
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43 static int myFunc(lua_State *L) { \ |
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44 size_t len; \ |
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45 const char *s = luaL_checklstring(L, 1, &len); \ |
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46 int hex_out = lua_toboolean(L, 2); \ |
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47 char hash[size]; \ |
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48 char result[size*2]; \ |
441
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49 func((const unsigned char*)s, len, (unsigned char*)hash); \ |
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50 if (hex_out) { \ |
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51 toHex(hash, size, result); \ |
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52 lua_pushlstring(L, result, size*2); \ |
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53 } else { \ |
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54 lua_pushlstring(L, hash, size);\ |
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55 } \ |
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56 return 1; \ |
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57 } |
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58 |
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59 MAKE_HASH_FUNCTION(Lsha1, SHA1, 20) |
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60 MAKE_HASH_FUNCTION(Lsha256, SHA256, 32) |
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61 MAKE_HASH_FUNCTION(Lmd5, MD5, 16) |
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62 |
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63 static const luaL_Reg Reg[] = |
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64 { |
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65 { "sha1", Lsha1 }, |
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66 { "sha256", Lsha256 }, |
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67 { "md5", Lmd5 }, |
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68 { NULL, NULL } |
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69 }; |
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70 |
432
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71 LUALIB_API int luaopen_util_hashes(lua_State *L) |
416
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72 { |
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73 luaL_register(L, "hashes", Reg); |
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74 lua_pushliteral(L, "version"); /** version */ |
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75 lua_pushliteral(L, "-3.14"); |
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76 lua_settable(L,-3); |
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77 return 1; |
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78 } |