int
px_find_combo(const char *name, PX_Combo **res)
{
int err;
char *buf,
*s_cipher,
*s_pad;
PX_Combo *cx;
cx = px_alloc(sizeof(*cx));
memset(cx, 0, sizeof(*cx));
buf = px_alloc(strlen(name) + 1);
strcpy(buf, name);
err = parse_cipher_name(buf, &s_cipher, &s_pad);
if (err)
{
px_free(buf);
px_free(cx);
return err;
}
err = px_find_cipher(s_cipher, &cx->cipher);
if (err)
goto err1;
if (s_pad != NULL)
{
if (strcmp(s_pad, "pkcs") == 0)
cx->padding = 1;
else if (strcmp(s_pad, "none") == 0)
cx->padding = 0;
else
goto err1;
}
else
cx->padding = 1;
cx->init = combo_init;
cx->encrypt = combo_encrypt;
cx->decrypt = combo_decrypt;
cx->encrypt_len = combo_encrypt_len;
cx->decrypt_len = combo_decrypt_len;
cx->free = combo_free;
px_free(buf);
*res = cx;
return 0;
err1:
if (cx->cipher)
px_cipher_free(cx->cipher);
px_free(cx);
px_free(buf);
return PXE_NO_CIPHER;
}
int
pgp_load_cipher(int code, PX_Cipher **res)
{
int err;
const struct cipher_info *i = get_cipher_info(code);
if (i == NULL)
return PXE_PGP_CORRUPT_DATA;
err = px_find_cipher(i->int_name, res);
if (err == 0)
return 0;
return PXE_PGP_UNSUPPORTED_CIPHER;
}
