}
#endif
+int OSSL_DECODER_from_data(OSSL_DECODER_CTX *ctx, const unsigned char **pdata,
+ size_t *pdata_len)
+{
+ BIO *membio;
+ int ret = 0;
+
+ if (pdata == NULL || *pdata == NULL || pdata_len == NULL) {
+ ERR_raise(ERR_LIB_OSSL_DECODER, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+
+ membio = BIO_new_mem_buf(*pdata, (int)*pdata_len);
+ if (OSSL_DECODER_from_bio(ctx, membio)) {
+ *pdata_len = (size_t)BIO_get_mem_data(membio, pdata);
+ ret = 1;
+ }
+ BIO_free(membio);
+
+ return ret;
+}
+
int OSSL_DECODER_CTX_set_input_type(OSSL_DECODER_CTX *ctx,
const char *input_type)
{
}
#endif
+int OSSL_ENCODER_to_data(OSSL_ENCODER_CTX *ctx, unsigned char **pdata,
+ size_t *pdata_len)
+{
+ BIO *out = BIO_new(BIO_s_mem());
+ BUF_MEM *buf = NULL;
+ int ret = 0;
+
+ if (pdata_len == NULL) {
+ ERR_raise(ERR_LIB_OSSL_DECODER, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+
+ if (OSSL_ENCODER_to_bio(ctx, out)
+ && BIO_get_mem_ptr(out, &buf) > 0) {
+ ret = 1; /* Hope for the best. A too small buffer will clear this */
+
+ if (pdata != NULL && *pdata != NULL) {
+ if (*pdata_len < buf->length)
+ /*
+ * It's tempting to do |*pdata_len = (size_t)buf->length|
+ * However, it's believed to be confusing more than helpful,
+ * so we don't.
+ */
+ ret = 0;
+ else
+ *pdata_len -= buf->length;
+ } else {
+ /* The buffer with the right size is already allocated for us */
+ *pdata_len = (size_t)buf->length;
+ }
+
+ if (ret) {
+ if (pdata != NULL) {
+ if (*pdata != NULL) {
+ memcpy(*pdata, buf->data, buf->length);
+ *pdata += buf->length;
+ } else {
+ /* In this case, we steal the data from BIO_s_mem() */
+ *pdata = (unsigned char *)buf->data;
+ buf->data = NULL;
+ }
+ }
+ }
+ }
+ BIO_free(out);
+ return ret;
+}
+
int OSSL_ENCODER_CTX_set_output_type(OSSL_ENCODER_CTX *ctx,
const char *output_type)
{
=head1 NAME
+OSSL_DECODER_from_data,
OSSL_DECODER_from_bio,
OSSL_DECODER_from_fp
- Routines to perform a decoding
int OSSL_DECODER_from_bio(OSSL_DECODER_CTX *ctx, BIO *in);
int OSSL_DECODER_from_fp(OSSL_DECODER_CTX *ctx, FILE *fp);
+ int OSSL_DECODER_from_data(OSSL_DECODER_CTX *ctx, const unsigned char **pdata,
+ size_t *pdata_len);
Feature availability macros:
=head1 DESCRIPTION
+OSSL_DECODER_from_data() runs the decoding process for the context I<ctx>,
+with input coming from I<*pdata>, I<*pdata_len> bytes long. Both I<*pdata>
+and I<*pdata_len> must be non-NULL. When OSSL_DECODER_from_data() returns,
+I<*pdata> is updated to point at the location after what has been decoded,
+and I<*pdata_len> to have the number of remaining bytes.
+
OSSL_DECODER_from_bio() runs the decoding process for the context I<ctx>,
with the input coming from the B<BIO> I<in>. Should it make a difference,
it's recommended to have the BIO set in binary mode rather than text mode.
=head1 NAME
+OSSL_ENCODER_to_data,
OSSL_ENCODER_to_bio,
OSSL_ENCODER_to_fp
- Routines to perform an encoding
#include <openssl/encoder.h>
+ int OSSL_ENCODER_to_data(OSSL_ENCODER_CTX *ctx, unsigned char **pdata,
+ size_t *pdata_len);
int OSSL_ENCODER_to_bio(OSSL_ENCODER_CTX *ctx, BIO *out);
int OSSL_ENCODER_to_fp(OSSL_ENCODER_CTX *ctx, FILE *fp);
=head1 DESCRIPTION
+OSSL_ENCODER_to_data() runs the encoding process for the context I<ctx>,
+with the output going to the I<*pdata> and I<*pdata_len>.
+If I<*pdata> is NULL when OSSL_ENCODER_to_data() is called, a buffer will be
+allocated using L<OPENSSL_zalloc(3)>, and I<*pdata> will be set to point at
+the start of that buffer, and I<*pdata_len> will be assigned its length when
+OSSL_ENCODER_to_data() returns.
+If I<*pdata> is non-NULL when OSSL_ENCODER_to_data() is called, I<*pdata_len>
+is assumed to have its size. In this case, I<*pdata> will be set to point
+after the encoded bytes, and I<*pdata_len> will be assigned the number of
+remaining bytes.
+
OSSL_ENCODER_to_bio() runs the encoding process for the context I<ctx>, with
-the output going to the B<BIO> I<out>. The application is required to set
-up the B<BIO> properly, for example to have it in text or binary mode if
-that's appropriate.
+the output going to the B<BIO> I<out>.
+
+OSSL_ENCODER_to_fp() does the same thing as OSSL_ENCODER_to_bio(), except
+that the output is going to the B<FILE> I<fp>.
=for comment Know your encoder!
-OSSL_ENCODER_to_fp() does the same thing as OSSL_ENCODER_to_bio(),
-except that the output is going to the B<FILE> I<fp>.
+For OSSL_ENCODER_to_bio() and OSSL_ENCODER_to_fp(), the application is
+required to set up the B<BIO> or B<FILE> properly, for example to have
+it in text or binary mode as is appropriate for the encoder output type.
=head1 RETURN VALUES
-OSSL_ENCODER_to_bio() and OSSL_ENCODER_to_fp() return 1 on success, or 0 on
-failure.
+OSSL_ENCODER_to_bio(), OSSL_ENCODER_to_fp() and OSSL_ENCODER_to_data()
+return 1 on success, or 0 on failure.
=begin comment TODO(3.0) Add examples!
#ifndef OPENSSL_NO_STDIO
int OSSL_DECODER_from_fp(OSSL_DECODER_CTX *ctx, FILE *in);
#endif
+int OSSL_DECODER_from_data(OSSL_DECODER_CTX *ctx, const unsigned char **pdata,
+ size_t *pdata_len);
/*
* Create the OSSL_DECODER_CTX with an associated type. This will perform
#ifndef OPENSSL_NO_STDIO
int OSSL_ENCODER_to_fp(OSSL_ENCODER_CTX *ctx, FILE *fp);
#endif
+int OSSL_ENCODER_to_data(OSSL_ENCODER_CTX *ctx, unsigned char **pdata,
+ size_t *pdata_len);
/*
* Create the OSSL_ENCODER_CTX with an associated type. This will perform
EVP_KEM_settable_ctx_params ? 3_0_0 EXIST::FUNCTION:
PKCS7_type_is_other ? 3_0_0 EXIST::FUNCTION:
PKCS7_get_octet_string ? 3_0_0 EXIST::FUNCTION:
+OSSL_DECODER_from_data ? 3_0_0 EXIST::FUNCTION:
+OSSL_ENCODER_to_data ? 3_0_0 EXIST::FUNCTION: