initial import of /usr/share/asn1c/*.[ch] skeleton files
diff --git a/src/NULL.c b/src/NULL.c
new file mode 100644
index 0000000..6d3316f
--- /dev/null
+++ b/src/NULL.c
@@ -0,0 +1,147 @@
+/*-
+ * Copyright (c) 2003, 2005 Lev Walkin <vlm@lionet.info>. All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+#include <asn_internal.h>
+#include <asn_codecs_prim.h>
+#include <NULL.h>
+#include <BOOLEAN.h> /* Implemented in terms of BOOLEAN type */
+
+/*
+ * NULL basic type description.
+ */
+static ber_tlv_tag_t asn_DEF_NULL_tags[] = {
+ (ASN_TAG_CLASS_UNIVERSAL | (5 << 2))
+};
+asn_TYPE_descriptor_t asn_DEF_NULL = {
+ "NULL",
+ "NULL",
+ BOOLEAN_free,
+ NULL_print,
+ asn_generic_no_constraint,
+ BOOLEAN_decode_ber, /* Implemented in terms of BOOLEAN */
+ NULL_encode_der, /* Special handling of DER encoding */
+ NULL_decode_xer,
+ NULL_encode_xer,
+ NULL_decode_uper, /* Unaligned PER decoder */
+ NULL_encode_uper, /* Unaligned PER encoder */
+ 0, /* Use generic outmost tag fetcher */
+ asn_DEF_NULL_tags,
+ sizeof(asn_DEF_NULL_tags) / sizeof(asn_DEF_NULL_tags[0]),
+ asn_DEF_NULL_tags, /* Same as above */
+ sizeof(asn_DEF_NULL_tags) / sizeof(asn_DEF_NULL_tags[0]),
+ 0, /* No PER visible constraints */
+ 0, 0, /* No members */
+ 0 /* No specifics */
+};
+
+asn_enc_rval_t
+NULL_encode_der(asn_TYPE_descriptor_t *td, void *ptr,
+ int tag_mode, ber_tlv_tag_t tag,
+ asn_app_consume_bytes_f *cb, void *app_key) {
+ asn_enc_rval_t erval;
+
+ erval.encoded = der_write_tags(td, 0, tag_mode, 0, tag, cb, app_key);
+ if(erval.encoded == -1) {
+ erval.failed_type = td;
+ erval.structure_ptr = ptr;
+ }
+
+ _ASN_ENCODED_OK(erval);
+}
+
+asn_enc_rval_t
+NULL_encode_xer(asn_TYPE_descriptor_t *td, void *sptr,
+ int ilevel, enum xer_encoder_flags_e flags,
+ asn_app_consume_bytes_f *cb, void *app_key) {
+ asn_enc_rval_t er;
+
+ (void)td;
+ (void)sptr;
+ (void)ilevel;
+ (void)flags;
+ (void)cb;
+ (void)app_key;
+
+ /* XMLNullValue is empty */
+ er.encoded = 0;
+ _ASN_ENCODED_OK(er);
+}
+
+
+static enum xer_pbd_rval
+NULL__xer_body_decode(asn_TYPE_descriptor_t *td, void *sptr, const void *chunk_buf, size_t chunk_size) {
+ (void)td;
+ (void)sptr;
+
+ if(xer_is_whitespace(chunk_buf, chunk_size))
+ return XPBD_BODY_CONSUMED;
+ else
+ return XPBD_BROKEN_ENCODING;
+}
+
+asn_dec_rval_t
+NULL_decode_xer(asn_codec_ctx_t *opt_codec_ctx,
+ asn_TYPE_descriptor_t *td, void **sptr, const char *opt_mname,
+ const void *buf_ptr, size_t size) {
+
+ return xer_decode_primitive(opt_codec_ctx, td,
+ sptr, sizeof(NULL_t), opt_mname, buf_ptr, size,
+ NULL__xer_body_decode);
+}
+
+int
+NULL_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
+ asn_app_consume_bytes_f *cb, void *app_key) {
+
+ (void)td; /* Unused argument */
+ (void)ilevel; /* Unused argument */
+
+ if(sptr) {
+ return (cb("<present>", 9, app_key) < 0) ? -1 : 0;
+ } else {
+ return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
+ }
+}
+
+asn_dec_rval_t
+NULL_decode_uper(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
+ asn_per_constraints_t *constraints, void **sptr, asn_per_data_t *pd) {
+ asn_dec_rval_t rv;
+
+ (void)opt_codec_ctx;
+ (void)td;
+ (void)constraints;
+ (void)pd;
+
+ if(!*sptr) {
+ *sptr = MALLOC(sizeof(NULL_t));
+ if(*sptr) {
+ *(NULL_t *)*sptr = 0;
+ } else {
+ _ASN_DECODE_FAILED;
+ }
+ }
+
+ /*
+ * NULL type does not have content octets.
+ */
+
+ rv.code = RC_OK;
+ rv.consumed = 0;
+ return rv;
+}
+
+asn_enc_rval_t
+NULL_encode_uper(asn_TYPE_descriptor_t *td, asn_per_constraints_t *constraints,
+ void *sptr, asn_per_outp_t *po) {
+ asn_enc_rval_t er;
+
+ (void)td;
+ (void)constraints;
+ (void)sptr;
+ (void)po;
+
+ er.encoded = 0;
+ _ASN_ENCODED_OK(er);
+}