So, just in case that wasn’t evil enough for you… perhaps you have something you want to know the MD5 checksum of. So, you could just do this:

drizzle> select md5('Hello World!');
+----------------------------------+
| md5('Hello World!')              |
+----------------------------------+
| ed076287532e86365e841e92bfc50d8c |
+----------------------------------+
1 row in set (0 sec)

But that is soooo boring.

Since we have the SSL libs already loaded into Drizzle, and using my very evil libtcc plugin… we could just implement it in C. We can even use malloc!

drizzle> SELECT LIBTCC("#include <string.h>\n#include <stdlib.h>\n#include <openssl/md5.h>\nint foo(char* s) { char *a = malloc(100); MD5_CTX context; unsigned char digest[16]; MD5_Init(&context); strcpy(a,\"Hello World!\"); MD5_Update(&context, a, strlen(a)); MD5_Final(digest, &context); snprintf(s, 33, \"%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x\", digest[0], digest[1], digest[2], digest[3],digest[4], digest[5], digest[6], digest[7],digest[8], digest[9], digest[10], digest[11],digest[12], digest[13], digest[14], digest[15]); free(a); return 32; }") AS RESULT;


+----------------------------------+
| RESULT                           |
+----------------------------------+
| ed076287532e86365e841e92bfc50d8c | 
+----------------------------------+
1 row in set (0.01 sec)

Currently the parameter is static in the C version due to me not having… well.. done a good job implementing the calling of C code.