/Users/trevorw/projects/release/covered-0.7.4/src/obfuscate.h File Reference

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Detailed Description

Contains functions for internal obfuscation.

Author:

Trevor Williams (phase1geo@gmail.com)

Date:

9/16/2006

Go to the source code of this file.

Defines
#define	obf_sig(x)   (obf_mode ? obfuscate_name(x,'s') : x)
#define	obf_funit(x)   (obf_mode ? obfuscate_name(x,'f') : x)
#define	obf_file(x)   (obf_mode ? obfuscate_name(x,'v') : x)
#define	obf_inst(x)   (obf_mode ? obfuscate_name(x,'i') : x)
Functions
void	obfuscate_set_mode (bool value)
	Sets the global 'obf_mode' variable to the specified value.
char *	obfuscate_name (const char *real_name, char prefix)
	Gets an obfuscated name for the given actual name.
void	obfuscate_dealloc ()
	Deallocates all memory associated with obfuscation.
Variables
bool	obf_mode

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Define Documentation

#define obf_file (  x   )     (obf_mode ? obfuscate_name(x,'v') : x)

Used for obfuscating file names. Improves performance when obfuscation mode is not turned on.

#define obf_funit (  x   )     (obf_mode ? obfuscate_name(x,'f') : x)

Used for obfuscating functional unit names. Improves performance when obfuscation mode is not turned on.

#define obf_inst (  x   )     (obf_mode ? obfuscate_name(x,'i') : x)

Used for obfuscating instance names. Improves performance when obfuscation mode is not turned on.

#define obf_sig (  x   )     (obf_mode ? obfuscate_name(x,'s') : x)

Used for obfuscating signal names. Improves performance when obfuscation mode is not turned on.

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Function Documentation

void obfuscate_dealloc (   )

Deallocates all memory associated with obfuscation. Deallocates all memory associated with obfuscation. { PROFILE(OBFUSCATE_DEALLOC); tree_dealloc( obf_tree ); PROFILE_END; }

char* obfuscate_name (  const char *  real_name, char  prefix )

Gets an obfuscated name for the given actual name. Returns: Returns the obfuscated name for this object. Looks up the given real name in the obfuscation tree. If it exists, simply return the given name; otherwise, create a new element in the tree to represent this new name. Parameters: real_name  Name of actual object in design prefix  Character representing the prefix of the obfuscated name { PROFILE(OBFUSCATE_NAME); tnode* obfnode; /* Pointer to obfuscated tree node */ char* key; /* Temporary name used for searching */ char tname[30]; /* Temporary name used for sizing obfuscation ID */ unsigned int rv; /* Return value from snprintf calls */ unsigned int slen; /* String length */ /* Create temporary name */ slen = strlen( real_name ) + 3; key = (char*)malloc_safe( slen ); rv = snprintf( key, slen, "%s-%c", real_name, prefix ); assert( rv < slen ); /* If the name was not previously obfuscated, create a new obfuscated entry in the tree and return the new name */ if( (obfnode = tree_find( key, obf_tree )) == NULL ) { /* Create obfuscated name */ rv = snprintf( tname, 30, "%c%04d", prefix, obf_curr_id ); assert( rv < 30 ); obf_curr_id++; /* Add the obfuscated name to the tree and get the pointer to the new node */ obfnode = tree_add( key, tname, FALSE, &obf_tree ); } /* Deallocate key string */ free_safe( key, (strlen( key ) + 1) ); PROFILE_END; return( obfnode->value ); }

void obfuscate_set_mode (  bool  value  )

Sets the global 'obf_mode' variable to the specified value. Sets the global 'obf_mode' variable to the specified value. Parameters: value  Boolean value to set obfuscation mode to { PROFILE(OBFUSCATE_SET_MODE); obf_mode = value; PROFILE_END; }

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Variable Documentation

bool obf_mode

Specifies obfuscation mode.

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