X-Git-Url: https://git.stg.codes/stg.git/blobdiff_plain/8c6fa3fbaccc22127280bf77a48fab5a3ee0716e..46b0747592074017ff0ea4b33d4a7194235886e5:/stglibs/smux.lib/NativeInteger.c diff --git a/stglibs/smux.lib/NativeInteger.c b/stglibs/smux.lib/NativeInteger.c deleted file mode 100644 index db234c8b..00000000 --- a/stglibs/smux.lib/NativeInteger.c +++ /dev/null @@ -1,313 +0,0 @@ -/*- - * Copyright (c) 2004, 2005, 2006 Lev Walkin . - * All rights reserved. - * Redistribution and modifications are permitted subject to BSD license. - */ -/* - * Read the NativeInteger.h for the explanation wrt. differences between - * INTEGER and NativeInteger. - * Basically, both are decoders and encoders of ASN.1 INTEGER type, but this - * implementation deals with the standard (machine-specific) representation - * of them instead of using the platform-independent buffer. - */ -#include -#include - -/* - * NativeInteger basic type description. - */ -static ber_tlv_tag_t asn_DEF_NativeInteger_tags[] = { - (ASN_TAG_CLASS_UNIVERSAL | (2 << 2)) -}; -asn_TYPE_descriptor_t asn_DEF_NativeInteger = { - "INTEGER", /* The ASN.1 type is still INTEGER */ - "INTEGER", - NativeInteger_free, - NativeInteger_print, - asn_generic_no_constraint, - NativeInteger_decode_ber, - NativeInteger_encode_der, - NativeInteger_decode_xer, - NativeInteger_encode_xer, - NativeInteger_decode_uper, /* Unaligned PER decoder */ - NativeInteger_encode_uper, /* Unaligned PER encoder */ - 0, /* Use generic outmost tag fetcher */ - asn_DEF_NativeInteger_tags, - sizeof(asn_DEF_NativeInteger_tags) / sizeof(asn_DEF_NativeInteger_tags[0]), - asn_DEF_NativeInteger_tags, /* Same as above */ - sizeof(asn_DEF_NativeInteger_tags) / sizeof(asn_DEF_NativeInteger_tags[0]), - 0, /* No PER visible constraints */ - 0, 0, /* No members */ - 0 /* No specifics */ -}; - -/* - * Decode INTEGER type. - */ -asn_dec_rval_t -NativeInteger_decode_ber(asn_codec_ctx_t *opt_codec_ctx, - asn_TYPE_descriptor_t *td, - void **nint_ptr, const void *buf_ptr, size_t size, int tag_mode) { - long *native = (long *)*nint_ptr; - asn_dec_rval_t rval; - ber_tlv_len_t length; - - /* - * If the structure is not there, allocate it. - */ - if(native == NULL) { - native = (long *)(*nint_ptr = CALLOC(1, sizeof(*native))); - if(native == NULL) { - rval.code = RC_FAIL; - rval.consumed = 0; - return rval; - } - } - - ASN_DEBUG("Decoding %s as INTEGER (tm=%d)", - td->name, tag_mode); - - /* - * Check tags. - */ - rval = ber_check_tags(opt_codec_ctx, td, 0, buf_ptr, size, - tag_mode, 0, &length, 0); - if(rval.code != RC_OK) - return rval; - - ASN_DEBUG("%s length is %d bytes", td->name, (int)length); - - /* - * Make sure we have this length. - */ - buf_ptr = ((const char *)buf_ptr) + rval.consumed; - size -= rval.consumed; - if(length > (ber_tlv_len_t)size) { - rval.code = RC_WMORE; - rval.consumed = 0; - return rval; - } - - /* - * ASN.1 encoded INTEGER: buf_ptr, length - * Fill the native, at the same time checking for overflow. - * If overflow occured, return with RC_FAIL. - */ - { - INTEGER_t tmp; - union { - const void *constbuf; - void *nonconstbuf; - } unconst_buf; - long l; - - unconst_buf.constbuf = buf_ptr; - tmp.buf = (uint8_t *)unconst_buf.nonconstbuf; - tmp.size = length; - - if(asn_INTEGER2long(&tmp, &l)) { - rval.code = RC_FAIL; - rval.consumed = 0; - return rval; - } - - *native = l; - } - - rval.code = RC_OK; - rval.consumed += length; - - ASN_DEBUG("Took %ld/%ld bytes to encode %s (%ld)", - (long)rval.consumed, (long)length, td->name, (long)*native); - - return rval; -} - -/* - * Encode the NativeInteger using the standard INTEGER type DER encoder. - */ -asn_enc_rval_t -NativeInteger_encode_der(asn_TYPE_descriptor_t *sd, void *ptr, - int tag_mode, ber_tlv_tag_t tag, - asn_app_consume_bytes_f *cb, void *app_key) { - unsigned long native = *(unsigned long *)ptr; /* Disable sign ext. */ - asn_enc_rval_t erval; - INTEGER_t tmp; - -#ifdef WORDS_BIGENDIAN /* Opportunistic optimization */ - - tmp.buf = (uint8_t *)&native; - tmp.size = sizeof(native); - -#else /* Works even if WORDS_BIGENDIAN is not set where should've been */ - uint8_t buf[sizeof(native)]; - uint8_t *p; - - /* Prepare a fake INTEGER */ - for(p = buf + sizeof(buf) - 1; p >= buf; p--, native >>= 8) - *p = native; - - tmp.buf = buf; - tmp.size = sizeof(buf); -#endif /* WORDS_BIGENDIAN */ - - /* Encode fake INTEGER */ - erval = INTEGER_encode_der(sd, &tmp, tag_mode, tag, cb, app_key); - if(erval.encoded == -1) { - assert(erval.structure_ptr == &tmp); - erval.structure_ptr = ptr; - } - return erval; -} - -/* - * Decode the chunk of XML text encoding INTEGER. - */ -asn_dec_rval_t -NativeInteger_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) { - asn_dec_rval_t rval; - INTEGER_t st; - void *st_ptr = (void *)&st; - long *native = (long *)*sptr; - - if(!native) { - native = (long *)(*sptr = CALLOC(1, sizeof(*native))); - if(!native) _ASN_DECODE_FAILED; - } - - memset(&st, 0, sizeof(st)); - rval = INTEGER_decode_xer(opt_codec_ctx, td, &st_ptr, - opt_mname, buf_ptr, size); - if(rval.code == RC_OK) { - long l; - if(asn_INTEGER2long(&st, &l)) { - rval.code = RC_FAIL; - rval.consumed = 0; - } else { - *native = l; - } - } else { - /* - * Cannot restart from the middle; - * there is no place to save state in the native type. - * Request a continuation from the very beginning. - */ - rval.consumed = 0; - } - ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &st); - return rval; -} - - -asn_enc_rval_t -NativeInteger_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) { - char scratch[32]; /* Enough for 64-bit int */ - asn_enc_rval_t er; - const long *native = (const long *)sptr; - - (void)ilevel; - (void)flags; - - if(!native) _ASN_ENCODE_FAILED; - - er.encoded = snprintf(scratch, sizeof(scratch), "%ld", *native); - if(er.encoded <= 0 || (size_t)er.encoded >= sizeof(scratch) - || cb(scratch, er.encoded, app_key) < 0) - _ASN_ENCODE_FAILED; - - _ASN_ENCODED_OK(er); -} - -asn_dec_rval_t -NativeInteger_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 rval; - long *native = (long *)*sptr; - INTEGER_t tmpint; - void *tmpintptr = &tmpint; - - (void)opt_codec_ctx; - ASN_DEBUG("Decoding NativeInteger %s (UPER)", td->name); - - if(!native) { - native = (long *)(*sptr = CALLOC(1, sizeof(*native))); - if(!native) _ASN_DECODE_FAILED; - } - - memset(&tmpint, 0, sizeof tmpint); - rval = INTEGER_decode_uper(opt_codec_ctx, td, constraints, - &tmpintptr, pd); - if(rval.code == RC_OK) { - if(asn_INTEGER2long(&tmpint, native)) - rval.code = RC_FAIL; - else - ASN_DEBUG("NativeInteger %s got value %ld", - td->name, *native); - } - ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint); - - return rval; -} - -asn_enc_rval_t -NativeInteger_encode_uper(asn_TYPE_descriptor_t *td, - asn_per_constraints_t *constraints, void *sptr, asn_per_outp_t *po) { - asn_enc_rval_t er; - long native; - INTEGER_t tmpint; - - if(!sptr) _ASN_ENCODE_FAILED; - - native = *(long *)sptr; - - ASN_DEBUG("Encoding NativeInteger %s %ld (UPER)", td->name, native); - - memset(&tmpint, 0, sizeof(tmpint)); - if(asn_long2INTEGER(&tmpint, native)) - _ASN_ENCODE_FAILED; - er = INTEGER_encode_uper(td, constraints, &tmpint, po); - ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint); - return er; -} - -/* - * INTEGER specific human-readable output. - */ -int -NativeInteger_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel, - asn_app_consume_bytes_f *cb, void *app_key) { - const long *native = (const long *)sptr; - - (void)td; /* Unused argument */ - (void)ilevel; /* Unused argument */ - - if(native) { - char scratch[32]; /* Enough for 64-bit int */ - int ret = snprintf(scratch, sizeof(scratch), "%ld", *native); - assert(ret > 0 && (size_t)ret < sizeof(scratch)); - return (cb(scratch, ret, app_key) < 0) ? -1 : 0; - } else { - return (cb("", 8, app_key) < 0) ? -1 : 0; - } -} - -void -NativeInteger_free(asn_TYPE_descriptor_t *td, void *ptr, int contents_only) { - - if(!td || !ptr) - return; - - ASN_DEBUG("Freeing %s as INTEGER (%d, %p, Native)", - td->name, contents_only, ptr); - - if(!contents_only) { - FREEMEM(ptr); - } -} -