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#include <asn_application.h>
#include <asn_internal.h>
#include <per_decoder.h>
asn_dec_rval_t
uper_decode(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td, void **sptr, const void *buffer, size_t size) {
asn_codec_ctx_t s_codec_ctx;
asn_per_data_t pd;
/*
* Stack checker requires that the codec context
* must be allocated on the stack.
*/
if(opt_codec_ctx) {
if(opt_codec_ctx->max_stack_size) {
s_codec_ctx = *opt_codec_ctx;
opt_codec_ctx = &s_codec_ctx;
}
} else {
/* If context is not given, be security-conscious anyway */
memset(&s_codec_ctx, 0, sizeof(s_codec_ctx));
s_codec_ctx.max_stack_size = _ASN_DEFAULT_STACK_MAX;
opt_codec_ctx = &s_codec_ctx;
}
/* Fill in the position indicator */
pd.buffer = (const uint8_t *)buffer;
pd.nboff = 0;
pd.nbits = 8 * size; /* 8 is CHAR_BIT from <limits.h> */
/*
* Invoke type-specific decoder.
*/
if(!td->uper_decoder)
_ASN_DECODE_FAILED; /* PER is not compiled in */
return td->uper_decoder(opt_codec_ctx, td, 0, sptr, &pd);
}
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