Re: [ANN] MD5 1.0.2 Released
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- Subject: Re: [ANN] MD5 1.0.2 Released
- From: Shmuel Zeigerman <shmuz@...>
- Date: 2007年5月09日 15:28:44 +0200
Andre Carregal wrote:
Any comments and feedback are welcome.
I propose to implement sumhexa in C and avoid 2-step loading
(the patch is attached).
--
Shmuel
--- md5lib.c Tue May 08 19:06:34 2007
+++ md5lib_new.c Wed May 09 14:57:02 2007
@@ -171,6 +171,26 @@
}
+/**
+* @param message: arbitrary binary string.
+* @return String with the md5 hash value converted to hexadecimal digits
+*/
+static int sumhexa (lua_State *L) {
+ char buff[16], buff2[32];
+ size_t l;
+ const char *message = luaL_checklstring(L, 1, &l);
+ md5(message, l, buff);
+ for(l=0; l<16; ++l) {
+ int high = (unsigned char)buff[l] >> 4;
+ int low = buff[l] & 0xf;
+ buff2[l+l] = high < 10 ? high + '0' : high - 10 + 'a';
+ buff2[l+l+1] = low < 10 ? low + '0' : low - 10 + 'a';
+ }
+ lua_pushlstring(L, buff2, 32L);
+ return 1;
+}
+
+
/*
** Assumes the table is on top of the stack.
*/
@@ -192,12 +212,13 @@
{"exor", ex_or},
{"crypt", crypt},
{"decrypt", decrypt},
+ {"sumhexa", sumhexa},
{NULL, NULL}
};
-int luaopen_md5_core (lua_State *L) {
- luaL_openlib(L, "md5", md5lib, 0);
+int luaopen_md5 (lua_State *L) {
+ luaL_register(L, "md5", md5lib);
set_info (L);
return 1;
}