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cipherfil.cpp

/******************************************************************************
 *
 * cipherfil -  SWFilter decendant to decipher a module
 */


#include <stdlib.h>
#include <string.h>
#include <cipherfil.h>


CipherFilter::CipherFilter(const char *key) {
        cipher = new SWCipher((unsigned char *)key);
}


CipherFilter::~CipherFilter() {
        delete cipher;
}


SWCipher *CipherFilter::getCipher() {
        return cipher;
}


char CipherFilter::ProcessText(char *text, int maxlen, const SWKey *key, const SWModule *module) {
        unsigned int len;
//      len = strlen(text);
        len = maxlen;
     if (len > 0) {
                cipher->cipherBuf(&len, text);
                strncpy(text, cipher->Buf(), (len < (unsigned int)maxlen) ? len : maxlen);
     }
        text[maxlen] = 0;
        text[maxlen+1] = 0;
        return 0;
}

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