first post

Nodejs-Socketio-Mysql-Demo/node_modules/mysql/test/fixture/libmysql_password.c

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+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+
+#define SCRAMBLE_LENGTH_323 8
+
+typedef unsigned long ulong;
+typedef unsigned int uint;
+typedef unsigned char uchar;
+
+struct rand_struct {
+  unsigned long seed1,seed2,max_value;
+  double max_value_dbl;
+};
+
+void hash_password(ulong *result, const char *password, uint password_len)
+{
+  register ulong nr=1345345333L, add=7, nr2=0x12345671L;
+  ulong tmp;
+  const char *password_end= password + password_len;
+  for (; password < password_end; password++)
+  {
+    if (*password == ' ' || *password == '\t')
+      continue;                                 /* skip space in password */
+    tmp= (ulong) (uchar) *password;
+    nr^= (((nr & 63)+add)*tmp)+ (nr << 8);
+    nr2+=(nr2 << 8) ^ nr;
+    add+=tmp;
+  }
+  result[0]=nr & (((ulong) 1L << 31) -1L); /* Don't use sign bit (str2int) */;
+  result[1]=nr2 & (((ulong) 1L << 31) -1L);
+}
+
+void randominit(struct rand_struct *rand_st, ulong seed1, ulong seed2)
+{                                               /* For mysql 3.21.# */
+#ifdef HAVE_purify
+  bzero((char*) rand_st,sizeof(*rand_st));      /* Avoid UMC varnings */
+#endif
+  rand_st->max_value= 0x3FFFFFFFL;
+  rand_st->max_value_dbl=(double) rand_st->max_value;
+  rand_st->seed1=seed1%rand_st->max_value ;
+  rand_st->seed2=seed2%rand_st->max_value;
+}
+
+double my_rnd(struct rand_struct *rand_st)
+{
+  rand_st->seed1=(rand_st->seed1*3+rand_st->seed2) % rand_st->max_value;
+  rand_st->seed2=(rand_st->seed1+rand_st->seed2+33) % rand_st->max_value;
+  return (((double) rand_st->seed1)/rand_st->max_value_dbl);
+}
+
+void scramble_323(char *to, const char *message, const char *password)
+{
+  struct rand_struct rand_st;
+  ulong hash_pass[2], hash_message[2];
+
+  if (password && password[0])
+  {
+    char extra, *to_start=to;
+    const char *message_end= message + SCRAMBLE_LENGTH_323;
+    hash_password(hash_pass,password, (uint) strlen(password));
+    hash_password(hash_message, message, SCRAMBLE_LENGTH_323);
+    randominit(&rand_st,hash_pass[0] ^ hash_message[0],
+               hash_pass[1] ^ hash_message[1]);
+    for (; message < message_end; message++)
+      *to++= (char) (floor(my_rnd(&rand_st)*31)+64);
+    extra=(char) (floor(my_rnd(&rand_st)*31));
+    while (to_start != to)
+      *(to_start++)^=extra;
+  }
+  *to= 0;
+}
+
+int main() {
+  const char password1[] = "root";
+  const char password2[] = "long password test";
+  const char password3[] = "saf789yasfbsd89f";
+  ulong result[2];
+  char scrm[9]; // SCRAMBLE_LENGTH_323+1
+  struct rand_struct rand_st;
+  int i;
+
+  // test hash_password
+  hash_password((ulong*)result, password1, strlen(password1));
+  printf("hash_password(\"%s\") = %08x%08x\n", password1, result[0], result[1]);
+
+  hash_password((ulong*)result, password2, strlen(password2));
+  printf("hash_password(\"%s\") = %08x%08x\n", password2, result[0], result[1]);
+
+  hash_password((ulong*)result, password3, strlen(password3));
+  printf("hash_password(\"%s\") = %08x%08x\n", password3, result[0], result[1]);
+
+
+  // test randominit
+  randominit(&rand_st, 0, 0);
+  printf("randominit(0x00000000,0x00000000) = %08x, %08x\n", rand_st.seed1, rand_st.seed2);
+
+  randominit(&rand_st, 0xFFFF, 0xFFFF);
+  printf("randominit(0x0000FFFF,0x0000FFFF) = %08x, %08x\n", rand_st.seed1, rand_st.seed2);
+
+  randominit(&rand_st, 0x50000000, 0x50000000);
+  printf("randominit(0x50000000,0x50000000) = %08x, %08x\n", rand_st.seed1, rand_st.seed2);
+
+  randominit(&rand_st, 0xFFFFFFFF, 0xFFFFFFFF);
+  printf("randominit(0xFFFFFFFF,0xFFFFFFFF) = %08x, %08x\n", rand_st.seed1, rand_st.seed2);
+
+
+  // test my_rnd
+  randominit(&rand_st, 3252345, 7149734);
+  printf("randominit(3252345, 7149734) = %08x, %08x\n", rand_st.seed1, rand_st.seed2);
+  for (i=0; i<10; i++){
+	  printf("my_rnd() : %.16f\n", my_rnd(&rand_st));
+  }
+
+
+  // test scramble_323
+  scramble_323(scrm, "8bytesofstuff", "root");
+  printf("scramble323(8bytesofstuff, root): %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
+    scrm[0], scrm[1], scrm[2], scrm[3], scrm[4], scrm[5], scrm[6], scrm[7], scrm[8]);
+
+  scramble_323(scrm, "e8cf00cec9ec825af22", "saf789yasfbsd");
+  printf("scramble323(e8cf00cec9ec825af22, saf789yasfbsd): %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
+    scrm[0], scrm[1], scrm[2], scrm[3], scrm[4], scrm[5], scrm[6], scrm[7], scrm[8]);
+
+  return 23;
+}
+