Add additional files required for fips181 compliation

third_party/fips181/randpass.cc

Index: third_party/fips181/randpass.cc
diff --git a/third_party/fips181/randpass.cc b/third_party/fips181/randpass.cc
new file mode 100644
index 0000000000000000000000000000000000000000..b804365ac26dcec2e03a26a60653784ee28a1fdd
--- /dev/null
+++ b/third_party/fips181/randpass.cc
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+/*
+** Copyright (c) 1999, 2000, 2001, 2002, 2003
+** Adel I. Mirzazhanov. All rights reserved
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions
+** are met:
+** 
+**     1.Redistributions of source code must retain the above copyright notice,
+**       this list of conditions and the following disclaimer. 
+**     2.Redistributions in binary form must reproduce the above copyright
+**       notice, this list of conditions and the following disclaimer in the
+**       documentation and/or other materials provided with the distribution. 
+**     3.The name of the author may not be used to endorse or promote products
+**       derived from this software without specific prior written permission. 
+** 		  
+** THIS SOFTWARE IS PROVIDED BY THE AUTHOR  ``AS IS'' AND ANY EXPRESS
+** OR IMPLIED WARRANTIES, INCLUDING,  BUT NOT LIMITED TO, THE IMPLIED
+** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+** ARE DISCLAIMED.  IN  NO  EVENT  SHALL THE AUTHOR BE LIABLE FOR ANY
+** DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+** DAMAGES (INCLUDING, BUT NOT LIMITED TO,  PROCUREMENT OF SUBSTITUTE
+** GOODS OR SERVICES;  LOSS OF USE,  DATA,  OR  PROFITS;  OR BUSINESS
+** INTERRUPTION)  HOWEVER  CAUSED  AND  ON  ANY  THEORY OF LIABILITY,
+** WHETHER  IN  CONTRACT,   STRICT   LIABILITY,  OR  TORT  (INCLUDING
+** NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*
+** randpass.c - Random password generation module of PWGEN program
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#if !defined(WIN32) && !defined(_WIN32) && !defined(__WIN32) && !defined(__WIN32__)
+#include <pwd.h>
+#endif
+#include <unistd.h>
+#include "randpass.h"
+
+#include "owntypes.h"
+#include "smbl.h"
+
+/*
+** gen_rand_pass - generates random password of specified type
+** INPUT:
+**   char * - password string.
+**   int    - minimum password length.
+**   int    - maximum password length.
+**   unsigned int - password generation mode.
+** OUTPUT:
+**   int - password length or -1 on error.
+** NOTES:
+**   none.
+*/
+int
+gen_rand_pass (char *password_string, int minl, int maxl, unsigned int pass_mode)
+{
+  int i = 0;
+  int j = 0;
+  int length = 0;
+  char *str_pointer;
+  int random_weight[94];
+  int max_weight = 0;
+  int max_weight_element_number = 0;
+
+  if (minl > APG_MAX_PASSWORD_LENGTH || maxl > APG_MAX_PASSWORD_LENGTH ||
+      minl < 1 || maxl < 1 || minl > maxl)
+      return (-1);
+  for (i = 0; i <= 93; i++) random_weight[i] = 0; 
+  length = minl + randint(maxl-minl+1);
+  str_pointer = password_string;
+
+  for (i = 0; i < length; i++)
+    {
+/* Asign random weight in weight array if mode is present*/
+      for (j = 0; j <= 93 ; j++)
+         if ( ( (pass_mode & smbl[j].type) > 0) &&
+	     !( (S_RS & smbl[j].type) > 0))
+	    random_weight[j] = 1 + randint(20000);
+      j = 0;
+/* Find an element with maximum weight */
+      for (j = 0; j <= 93; j++)
+	if (random_weight[j] > max_weight)
+	  {
+	    max_weight = random_weight[j];
+	    max_weight_element_number = j;
+	  }
+/* Get password symbol */
+      *str_pointer = smbl[max_weight_element_number].ch;
+      str_pointer++;
+      max_weight = 0;
+      max_weight_element_number = 0;
+      for (j = 0; j <= 93; j++) random_weight[j] = 0;
+    }
+  *str_pointer = 0;
+  return (length);
+}
+
+/*
+** gen_rand_symbol - generates random password of specified type
+** INPUT:
+**   char * - symbol.
+**   unsigned int - symbol type.
+** OUTPUT:
+**   int - password length or -1 on error.
+** NOTES:
+**   none.
+*/
+int
+gen_rand_symbol (char *symbol, unsigned int mode)
+{
+  int j = 0;
+  char *str_pointer;
+  int random_weight[94];
+  int max_weight = 0;
+  int max_weight_element_number = 0;
+
+  for (j = 0; j <= 93; j++) random_weight[j] = 0; 
+  str_pointer = symbol;
+  j = 0;
+/* Asign random weight in weight array if mode is present*/
+  for (j = 0; j <= 93 ; j++)
+     if ( ( (mode & smbl[j].type) > 0) &&
+         !( (S_RS & smbl[j].type) > 0))
+	   random_weight[j] = 1 + randint(20000);
+  j = 0;
+/* Find an element with maximum weight */
+  for (j = 0; j <= 93; j++)
+     if (random_weight[j] > max_weight)
+       {
+        max_weight = random_weight[j];
+        max_weight_element_number = j;
+       }
+/* Get password symbol */
+  *str_pointer = smbl[max_weight_element_number].ch;
+  max_weight = 0;
+  max_weight_element_number = 0;
+  return (0);
+}
+
+/*
+** is_restricted_symbol - detcts if symbol is restricted rigt now
+** INPUT:
+**   char - symbol.
+** OUTPUT:
+**   int - 0 - not restricted
+**         1 - restricted
+** NOTES:
+**   none.
+*/
+int
+is_restricted_symbol (char symbol)
+{
+  int j = 0;
+  for (j = 0; j <= 93 ; j++)
+    if (symbol == smbl[j].ch)
+      if ((S_RS & smbl[j].type) > 0)
+        return(1);
+  return(0);
+}