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Full Discussion: How to hide from UNIX strings - obfuscate or hide a literal or constant?
Top Forums Programming How to hide from UNIX strings - obfuscate or hide a literal or constant? Post 302892081 by newbie_01 on Monday 10th of March 2014 06:24:42 PM
Old 03-10-2014
Quote:
Originally Posted by Perderabo
How about...
Code:
char array[20];

array[2] = 'l';
array[4] = 'o';
array[5] = (char)0;
array[1] = 'e';
array[3] = 'l';
array[0] = 'h';

Do that just immediately before you use it. Wipe it out immediately after use. Do you mean do a array[]="" after I do the print?
Hi Perderabo,

Thanks as usual to be the first responder.

I am more or less using the one that you suggested. What do you mean by wipe it out immediately?

BTW, looking at one of your reply to Reading password and echo * character | Unix Linux Forums | Shell Programming and Scripting. If you don't mind me asking, if is possible for read to read a defined variable or does it always require a user intervention to provide an input?

Below is what I end up using.

Code:
#include <stdio.h>

// - UPPER CASE starts at 65
// - LOWER CASE starts at 97

int count;
char uc[26];
char lc[26];

char a, b, c, d, e, f;
char g, h, i, j, k, l;
char m, n, o, p, q, r;
char s, t, u, v, w, x;
char y, z;

//char word[100];
//char *word;

main()
{
   /* Print the numbers 1 through 20 */

   for ( count = 1; count <= 26; count++ )
   {
          // printf("%d :: %c :: %c \n", count, count+64, count+96);
          uc[count] = (char)count+64;
          lc[count] = (char)count+96;
   }

   // printf("\n ------------------------------------------ \n");

   // d=lc[4];
   // b=lc[2];
   // g=lc[7];
   // u=lc[21];
   // r=lc[18];
   // char word[]={ d, b, t, e, s, t };

   char word[]={ lc[4] , lc[2] , lc[20] , lc[5] , lc[19] , lc[20]  };

   //printf("%c%c%c%c%c%c",d,b,g,u,r,u);
   //printf("%c \n",u[26]);
   //printf("%c \n",l[26]);

   //#printf("%s",word);
   puts(word);
   return 0;
}

 

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LEARN ABOUT DEBIAN

radsqlrelay

RADSQLRELAY(8)						     FreeRADIUS helper program						    RADSQLRELAY(8)

NAME

       radsqlrelay - relay SQL queries to a central database server

SYNOPSIS

       radsqlrelay [-?]  [-d sql_driver] [-b database] [-f file] [-h host] [-u user] [-P port] [-p password] [-1] [-x] file_path

DESCRIPTION

       radsqlrelay  tails a SQL logfile and forwards the queries to a database server. Used to replicate accounting records to one (central) data-
       base, even if the database has extended downtime.

       The SQL logfile is created by the rlm_sql_log module. The module must be configured in the radiusd server before you can use radsqlrelay.

OPTIONS

       -?     Print usage help information.

       -d sql_driver
	      Driver to use: mysql, pg, oracle.

       -b database
	      Name of the database to use.

       -f file
	      Read password from file, instead of command line.

       -h host
	      Connect to host.

       -u user
	      User for login.

       -P port
	      Port number to use for connection.

       -p password
	      Password to use when connecting to server.

       -1     One-shot mode: push the file to database and exit.

       -x     Turn on debugging.

       file_path
	      The pathname of the SQL logfile to use.

NOTES

   Oracle driver
       The command "radsqlrelay -d oracle -b db.domain.tld sql-relay" reads the database description stored in $TNS_ADMIN/tnsnames.ora:

       db.domain.tld =
	 (DESCRIPTION =
	   (ADDRESS_LIST =
	     (ADDRESS = (PROTOCOL = TCP)(HOST = db.domain.tld)(PORT = 1521))
	   )
	   (CONNECT_DATA =
	     (SERVICE_NAME = <DB SID>)
	   )
	 )

SEE ALSO

       rlm_sql_log(5)

AUTHOR

       Nicolas Baradakis <nicolas.baradakis@cegetel.net>

								   19 June 2005 						    RADSQLRELAY(8)
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