crypt.inc
Original include source with line numbers.
| 1 | |
| 2 | /* |
| 3 | Crypt |
| 4 | v0.1 |
| 5 | by bugsy |
| 6 | */ |
| 7 | |
| 8 | #if defined _crypt_included |
| 9 | #endinput |
| 10 | #endif |
| 11 | #define _crypt_included |
| 12 | |
| 13 | const CRYPT_MAX_LEN = 512; |
| 14 | |
| 15 | enum CryptInfo |
| 16 | { |
| 17 | C_Len, |
| 18 | C_String[ CRYPT_MAX_LEN + 1 ], |
| 19 | bool:C_IsEncrypted |
| 20 | } |
| 21 | |
| 22 | stock CreateCrypt( Crypt[ CryptInfo ] , const szSource[] ) |
| 23 | { |
| 24 | if ( ( Crypt[ C_Len ] = strlen( szSource ) ) > CRYPT_MAX_LEN ) |
| 25 | return ( Crypt[ C_Len ] = 0 ); |
| 26 | |
| 27 | Crypt[ C_IsEncrypted ] = false; |
| 28 | return copy( Crypt[ C_String ] , clamp( Crypt[ C_Len ] , 1 , CRYPT_MAX_LEN ) , szSource ); |
| 29 | } |
| 30 | |
| 31 | stock CryptString( Crypt[ CryptInfo ] , const szKey[] ) |
| 32 | { |
| 33 | new iSrcPos , iKeyPos , iKeyLen; |
| 34 | |
| 35 | if ( !( iKeyLen = strlen( szKey ) ) ) |
| 36 | return 0; |
| 37 | |
| 38 | for ( iSrcPos = 0 , iKeyPos = 0 ; iSrcPos < Crypt[ C_Len ] ; iSrcPos++ ) |
| 39 | { |
| 40 | Crypt[ C_String ][ iSrcPos ] = Crypt[ C_String ][ iSrcPos ] ^ szKey[ iKeyPos ]; |
| 41 | |
| 42 | if ( ++iKeyPos == iKeyLen ) |
| 43 | iKeyPos = 0; |
| 44 | } |
| 45 | |
| 46 | //I get a warning with: var = !var |
| 47 | Crypt[ C_IsEncrypted ] = Crypt[ C_IsEncrypted ] ? false : true; |
| 48 | |
| 49 | return iSrcPos; |
| 50 | } |
| 51 | |