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MODULE = CryptX PACKAGE = Crypt::Stream::RC4
PROTOTYPES: DISABLE
Crypt::Stream::RC4
new(Class, SV * key)
CODE:
{
int rv;
STRLEN k_len=0;
unsigned char *k=NULL;
if (!SvPOK_spec(key)) croak("FATAL: key must be string/buffer scalar");
k = (unsigned char *) SvPVbyte(key, k_len);
Newz(0, RETVAL, 1, rc4_state);
if (!RETVAL) croak("FATAL: Newz failed");
rv = rc4_stream_setup(RETVAL, k, (unsigned long)k_len);
if (rv != CRYPT_OK) {
Safefree(RETVAL);
croak("FATAL: rc4_stream_setup failed: %s", error_to_string(rv));
}
}
OUTPUT:
RETVAL
void
DESTROY(Crypt::Stream::RC4 self)
CODE:
rc4_stream_done(self);
Safefree(self);
Crypt::Stream::RC4
clone(Crypt::Stream::RC4 self)
CODE:
Newz(0, RETVAL, 1, rc4_state);
if (!RETVAL) croak("FATAL: Newz failed");
Copy(self, RETVAL, 1, rc4_state);
OUTPUT:
RETVAL
SV *
keystream(Crypt::Stream::RC4 self, STRLEN out_len)
CODE:
{
int rv;
unsigned char *out_data;
if (out_len == 0) {
RETVAL = newSVpvn("", 0);
}
else {
RETVAL = NEWSV(0, out_len); /* avoid zero! */
SvPOK_only(RETVAL);
SvCUR_set(RETVAL, out_len);
out_data = (unsigned char *)SvPVX(RETVAL);
rv = rc4_stream_keystream(self, out_data, (unsigned long)out_len);
if (rv != CRYPT_OK) {
SvREFCNT_dec(RETVAL);
croak("FATAL: rc4_stream_keystream failed: %s", error_to_string(rv));
}
}
}
OUTPUT:
RETVAL
SV *
crypt(Crypt::Stream::RC4 self, SV * data)
CODE:
{
int rv;
STRLEN in_data_len;
unsigned char *in_data, *out_data;
in_data = (unsigned char *)SvPVbyte(data, in_data_len);
if (in_data_len == 0) {
RETVAL = newSVpvn("", 0);
}
else {
RETVAL = NEWSV(0, in_data_len); /* avoid zero! */
SvPOK_only(RETVAL);
SvCUR_set(RETVAL, in_data_len);
out_data = (unsigned char *)SvPVX(RETVAL);
rv = rc4_stream_crypt(self, in_data, (unsigned long)in_data_len, out_data);
if (rv != CRYPT_OK) {
SvREFCNT_dec(RETVAL);
croak("FATAL: rc4_stream_crypt failed: %s", error_to_string(rv));
}
}
}
OUTPUT:
RETVAL
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