| /*- |
| * 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); |
| } |