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/*-
* Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#include <stdio.h>
#include <errno.h>
/*
* The XER encoder of any type. May be invoked by the application.
*/
asn_enc_rval_t xer_encode(asn_TYPE_descriptor_t * td, void *sptr,
enum xer_encoder_flags_e xer_flags,
asn_app_consume_bytes_f * cb, void *app_key)
{
asn_enc_rval_t er,
tmper;
const char *mname;
size_t mlen;
int xcan = (xer_flags & XER_F_CANONICAL) ? 1 : 2;
if (!td || !sptr)
goto cb_failed;
mname = td->xml_tag;
mlen = strlen(mname);
_ASN_CALLBACK3("<", 1, mname, mlen, ">", 1);
tmper = td->xer_encoder(td, sptr, 1, xer_flags, cb, app_key);
if (tmper.encoded == -1)
return tmper;
_ASN_CALLBACK3("</", 2, mname, mlen, ">\n", xcan);
er.encoded = 4 + xcan + (2 * mlen) + tmper.encoded;
_ASN_ENCODED_OK(er);
cb_failed:
_ASN_ENCODE_FAILED;
}
/*
* This is a helper function for xer_fprint, which directs all incoming data
* into the provided file descriptor.
*/
static int xer__print2fp(const void *buffer, size_t size, void *app_key)
{
FILE *stream = (FILE *) app_key;
if (fwrite(buffer, 1, size, stream) != size)
return -1;
return 0;
}
int xer_fprint(FILE * stream, asn_TYPE_descriptor_t * td, void *sptr)
{
asn_enc_rval_t er;
if (!stream)
stream = stdout;
if (!td || !sptr)
return -1;
er = xer_encode(td, sptr, XER_F_BASIC, xer__print2fp, stream);
if (er.encoded == -1)
return -1;
return fflush(stream);
}
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