SEC_PKCS7EncoderContext *
SEC_PKCS7EncoderStart (SEC_PKCS7ContentInfo *cinfo,
SEC_PKCS7EncoderOutputCallback outputfn,
void *outputarg,
PK11SymKey *bulkkey)
{
SEC_PKCS7EncoderContext *p7ecx;
SECStatus rv;
p7ecx = sec_pkcs7_encoder_start_contexts (cinfo, bulkkey);
if (p7ecx == NULL)
return NULL;
p7ecx->output.outputfn = outputfn;
p7ecx->output.outputarg = outputarg;
/*
* Initialize the BER encoder.
*/
p7ecx->ecx = SEC_ASN1EncoderStart (cinfo, sec_PKCS7ContentInfoTemplate,
sec_pkcs7_encoder_out, &(p7ecx->output));
if (p7ecx->ecx == NULL) {
PORT_Free (p7ecx);
return NULL;
}
/*
* Indicate that we are streaming. We will be streaming until we
* get past the contents bytes.
*/
SEC_ASN1EncoderSetStreaming (p7ecx->ecx);
/*
* The notify function will watch for the contents field.
*/
SEC_ASN1EncoderSetNotifyProc (p7ecx->ecx, sec_pkcs7_encoder_notify, p7ecx);
/*
* This will encode everything up to the content bytes. (The notify
* function will then cause the encoding to stop there.) Then our
* caller can start passing contents bytes to our Update, which we
* will pass along.
*/
rv = SEC_ASN1EncoderUpdate (p7ecx->ecx, NULL, 0);
if (rv != SECSuccess) {
PORT_Free (p7ecx);
return NULL;
}
return p7ecx;
}
SECStatus
SEC_ASN1Encode (const void *src, const SEC_ASN1Template *theTemplate,
SEC_ASN1WriteProc output_proc, void *output_arg)
{
SEC_ASN1EncoderContext *ecx;
SECStatus rv;
ecx = SEC_ASN1EncoderStart (src, theTemplate, output_proc, output_arg);
if (ecx == NULL)
return SECFailure;
rv = SEC_ASN1EncoderUpdate (ecx, NULL, 0);
SEC_ASN1EncoderFinish (ecx);
return rv;
}
