src/kits/mail/crypt.cpp

   1 /* crypt - simple encryption algorithm used for passwords
   2 **
   3 ** Copyright 2001 Dr. Zoidberg Enterprises. All rights reserved.
   4 */
   5
   6
   7 #include <Message.h>
   8
   9 #include <string.h>
  10 #include <crypt.h>
  11
  12
  13 static const char key[PASSWORD_LENGTH + 1] = "Dr. Zoidberg Enterprises, BeMail";
  14
  15
  16 _EXPORT char *get_passwd(const BMessage *msg,const char *name)
  17 {
  18         char *encryptedPassword;
  19         ssize_t length;
  20         if (msg->FindData(name,B_RAW_TYPE,(const void **)&encryptedPassword,&length) < B_OK || !encryptedPassword || length == 0)
  21                 return NULL;
  22
  23         char *buffer = new char[length];
  24         passwd_crypt(encryptedPassword,buffer,length);
  25
  26         return buffer;
  27 }
  28
  29
  30 _EXPORT bool set_passwd(BMessage *msg,const char *name,const char *password)
  31 {
  32         if (!password)
  33                 return false;
  34
  35         ssize_t length = strlen(password) + 1;
  36         char *buffer = new char[length];
  37         passwd_crypt((char *)password,buffer,length);
  38
  39         msg->RemoveName(name);
  40         status_t status = msg->AddData(name,B_RAW_TYPE,buffer,length,false);
  41
  42         delete [] buffer;
  43         return (status >= B_OK);
  44 }
  45
  46
  47 _EXPORT void passwd_crypt(char *in,char *out,int length)
  48 {
  49         int i;
  50
  51         memcpy(out,in,length);
  52         if (length > PASSWORD_LENGTH)
  53                 length = PASSWORD_LENGTH;
  54
  55         for (i = 0;i < length;i++)
  56                 out[i] ^= key[i];
  57 }
  58