-/*-
- * Copyright (c) 2003, 2004, 2005, 2006 Lev Walkin <vlm@lionet.info>.
- * All rights reserved.
- * Redistribution and modifications are permitted subject to BSD license.
- */
-#include <asn_internal.h>
-#include <OCTET_STRING.h>
-#include <BIT_STRING.h> /* for .bits_unused member */
-#include <errno.h>
-
-/*
- * OCTET STRING basic type description.
- */
-static ber_tlv_tag_t asn_DEF_OCTET_STRING_tags[] = {
- (ASN_TAG_CLASS_UNIVERSAL | (4 << 2))
-};
-static asn_OCTET_STRING_specifics_t asn_DEF_OCTET_STRING_specs = {
- sizeof(OCTET_STRING_t),
- offsetof(OCTET_STRING_t, _asn_ctx),
- 0
-};
-static asn_per_constraint_t asn_DEF_OCTET_STRING_constraint = {
- APC_SEMI_CONSTRAINED, -1, -1, 0, 0
-};
-asn_TYPE_descriptor_t asn_DEF_OCTET_STRING = {
- "OCTET STRING", /* Canonical name */
- "OCTET_STRING", /* XML tag name */
- OCTET_STRING_free,
- OCTET_STRING_print, /* non-ascii stuff, generally */
- asn_generic_no_constraint,
- OCTET_STRING_decode_ber,
- OCTET_STRING_encode_der,
- OCTET_STRING_decode_xer_hex,
- OCTET_STRING_encode_xer,
- OCTET_STRING_decode_uper, /* Unaligned PER decoder */
- OCTET_STRING_encode_uper, /* Unaligned PER encoder */
- 0, /* Use generic outmost tag fetcher */
- asn_DEF_OCTET_STRING_tags,
- sizeof(asn_DEF_OCTET_STRING_tags)
- / sizeof(asn_DEF_OCTET_STRING_tags[0]),
- asn_DEF_OCTET_STRING_tags, /* Same as above */
- sizeof(asn_DEF_OCTET_STRING_tags)
- / sizeof(asn_DEF_OCTET_STRING_tags[0]),
- 0, /* No PER visible constraints */
- 0, 0, /* No members */
- &asn_DEF_OCTET_STRING_specs
-};
-
-#undef _CH_PHASE
-#undef NEXT_PHASE
-#undef PREV_PHASE
-#define _CH_PHASE(ctx, inc) do { \
- if(ctx->phase == 0) \
- ctx->context = 0; \
- ctx->phase += inc; \
- } while(0)
-#define NEXT_PHASE(ctx) _CH_PHASE(ctx, +1)
-#define PREV_PHASE(ctx) _CH_PHASE(ctx, -1)
-
-#undef ADVANCE
-#define ADVANCE(num_bytes) do { \
- size_t num = (num_bytes); \
- buf_ptr = ((const char *)buf_ptr) + num; \
- size -= num; \
- consumed_myself += num; \
- } while(0)
-
-#undef RETURN
-#define RETURN(_code) do { \
- asn_dec_rval_t tmprval; \
- tmprval.code = _code; \
- tmprval.consumed = consumed_myself; \
- return tmprval; \
- } while(0)
-
-#undef APPEND
-#define APPEND(bufptr, bufsize) do { \
- size_t _bs = (bufsize); /* Append size */ \
- size_t _ns = ctx->context; /* Allocated now */ \
- size_t _es = st->size + _bs; /* Expected size */ \
- /* int is really a typeof(st->size): */ \
- if((int)_es < 0) RETURN(RC_FAIL); \
- if(_ns <= _es) { \
- void *ptr; \
- /* Be nice and round to the memory allocator */ \
- do { _ns = _ns ? _ns << 1 : 16; } \
- while(_ns <= _es); \
- /* int is really a typeof(st->size): */ \
- if((int)_ns < 0) RETURN(RC_FAIL); \
- ptr = REALLOC(st->buf, _ns); \
- if(ptr) { \
- st->buf = (uint8_t *)ptr; \
- ctx->context = _ns; \
- } else { \
- RETURN(RC_FAIL); \
- } \
- ASN_DEBUG("Reallocating into %ld", (long)_ns); \
- } \
- memcpy(st->buf + st->size, bufptr, _bs); \
- /* Convenient nul-termination */ \
- st->buf[_es] = '\0'; \
- st->size = _es; \
- } while(0)
-
-/*
- * Internal variant of the OCTET STRING.
- */
-typedef enum OS_type {
- _TT_GENERIC = 0, /* Just a random OCTET STRING */
- _TT_BIT_STRING = 1, /* BIT STRING type, a special case */
- _TT_ANY = 2 /* ANY type, a special case too */
-} OS_type_e;
-
-/*
- * The main reason why ASN.1 is still alive is that too much time and effort
- * is necessary for learning it more or less adequately, thus creating a gut
- * necessity to demonstrate that aquired skill everywhere afterwards.
- * No, I am not going to explain what the following stuff is.
- */
-struct _stack_el {
- ber_tlv_len_t left; /* What's left to read (or -1) */
- ber_tlv_len_t got; /* What was actually processed */
- int cont_level; /* Depth of subcontainment */
- int want_nulls; /* Want null "end of content" octets? */
- int bits_chopped; /* Flag in BIT STRING mode */
- ber_tlv_tag_t tag; /* For debugging purposes */
- struct _stack_el *prev;
- struct _stack_el *next;
-};
-struct _stack {
- struct _stack_el *tail;
- struct _stack_el *cur_ptr;
-};
-
-static struct _stack_el *
-OS__add_stack_el(struct _stack *st) {
- struct _stack_el *nel;
-
- /*
- * Reuse the old stack frame or allocate a new one.
- */
- if(st->cur_ptr && st->cur_ptr->next) {
- nel = st->cur_ptr->next;
- nel->bits_chopped = 0;
- nel->got = 0;
- /* Retain the nel->cont_level, it's correct. */
- } else {
- nel = (struct _stack_el *)CALLOC(1, sizeof(struct _stack_el));
- if(nel == NULL)
- return NULL;
-
- if(st->tail) {
- /* Increase a subcontainment depth */
- nel->cont_level = st->tail->cont_level + 1;
- st->tail->next = nel;
- }
- nel->prev = st->tail;
- st->tail = nel;
- }
-
- st->cur_ptr = nel;
-
- return nel;
-}
-
-static struct _stack *
-_new_stack() {
- return (struct _stack *)CALLOC(1, sizeof(struct _stack));
-}
-
-/*
- * Decode OCTET STRING type.
- */
-asn_dec_rval_t
-OCTET_STRING_decode_ber(asn_codec_ctx_t *opt_codec_ctx,
- asn_TYPE_descriptor_t *td,
- void **sptr, const void *buf_ptr, size_t size, int tag_mode) {
- asn_OCTET_STRING_specifics_t *specs = td->specifics
- ? (asn_OCTET_STRING_specifics_t *)td->specifics
- : &asn_DEF_OCTET_STRING_specs;
- BIT_STRING_t *st = (BIT_STRING_t *)*sptr;
- asn_dec_rval_t rval;
- asn_struct_ctx_t *ctx;
- ssize_t consumed_myself = 0;
- struct _stack *stck; /* Expectations stack structure */
- struct _stack_el *sel = 0; /* Stack element */
- int tlv_constr;
- OS_type_e type_variant = (OS_type_e)specs->subvariant;
-
- ASN_DEBUG("Decoding %s as %s (frame %ld)",
- td->name,
- (type_variant == _TT_GENERIC) ?
- "OCTET STRING" : "OS-SpecialCase",
- (long)size);
-
- /*
- * Create the string if does not exist.
- */
- if(st == NULL) {
- st = (BIT_STRING_t *)(*sptr = CALLOC(1, specs->struct_size));
- if(st == NULL) RETURN(RC_FAIL);
- }
-
- /* Restore parsing context */
- ctx = (asn_struct_ctx_t *)((char *)st + specs->ctx_offset);
-
- switch(ctx->phase) {
- case 0:
- /*
- * Check tags.
- */
- rval = ber_check_tags(opt_codec_ctx, td, ctx,
- buf_ptr, size, tag_mode, -1,
- &ctx->left, &tlv_constr);
- if(rval.code != RC_OK)
- return rval;
-
- if(tlv_constr) {
- /*
- * Complex operation, requires stack of expectations.
- */
- ctx->ptr = _new_stack();
- if(ctx->ptr) {
- stck = (struct _stack *)ctx->ptr;
- } else {
- RETURN(RC_FAIL);
- }
- } else {
- /*
- * Jump into stackless primitive decoding.
- */
- _CH_PHASE(ctx, 3);
- if(type_variant == _TT_ANY && tag_mode != 1)
- APPEND(buf_ptr, rval.consumed);
- ADVANCE(rval.consumed);
- goto phase3;
- }
-
- NEXT_PHASE(ctx);
- /* Fall through */
- case 1:
- phase1:
- /*
- * Fill the stack with expectations.
- */
- stck = (struct _stack *)ctx->ptr;
- sel = stck->cur_ptr;
- do {
- ber_tlv_tag_t tlv_tag;
- ber_tlv_len_t tlv_len;
- ber_tlv_tag_t expected_tag;
- ssize_t tl, ll, tlvl;
- /* This one works even if (sel->left == -1) */
- ssize_t Left = ((!sel||(size_t)sel->left >= size)
- ?(ssize_t)size:sel->left);
-
-
- ASN_DEBUG("%p, s->l=%ld, s->wn=%ld, s->g=%ld\n", sel,
- (long)(sel?sel->left:0),
- (long)(sel?sel->want_nulls:0),
- (long)(sel?sel->got:0)
- );
- if(sel && sel->left <= 0 && sel->want_nulls == 0) {
- if(sel->prev) {
- struct _stack_el *prev = sel->prev;
- if(prev->left != -1) {
- if(prev->left < sel->got)
- RETURN(RC_FAIL);
- prev->left -= sel->got;
- }
- prev->got += sel->got;
- sel = stck->cur_ptr = prev;
- if(!sel) break;
- tlv_constr = 1;
- continue;
- } else {
- sel = stck->cur_ptr = 0;
- break; /* Nothing to wait */
- }
- }
-
- tl = ber_fetch_tag(buf_ptr, Left, &tlv_tag);
- ASN_DEBUG("fetch tag(size=%ld,L=%ld), %sstack, left=%ld, wn=%ld, tl=%ld",
- (long)size, (long)Left, sel?"":"!",
- (long)(sel?sel->left:0),
- (long)(sel?sel->want_nulls:0),
- (long)tl);
- switch(tl) {
- case -1: RETURN(RC_FAIL);
- case 0: RETURN(RC_WMORE);
- }
-
- tlv_constr = BER_TLV_CONSTRUCTED(buf_ptr);
-
- ll = ber_fetch_length(tlv_constr,
- (const char *)buf_ptr + tl,Left - tl,&tlv_len);
- ASN_DEBUG("Got tag=%s, tc=%d, left=%ld, tl=%ld, len=%ld, ll=%ld",
- ber_tlv_tag_string(tlv_tag), tlv_constr,
- (long)Left, (long)tl, (long)tlv_len, (long)ll);
- switch(ll) {
- case -1: RETURN(RC_FAIL);
- case 0: RETURN(RC_WMORE);
- }
-
- if(sel && sel->want_nulls
- && ((const uint8_t *)buf_ptr)[0] == 0
- && ((const uint8_t *)buf_ptr)[1] == 0)
- {
-
- ASN_DEBUG("Eat EOC; wn=%d--", sel->want_nulls);
-
- if(type_variant == _TT_ANY
- && (tag_mode != 1 || sel->cont_level))
- APPEND("\0\0", 2);
-
- ADVANCE(2);
- sel->got += 2;
- if(sel->left != -1) {
- sel->left -= 2; /* assert(sel->left >= 2) */
- }
-
- sel->want_nulls--;
- if(sel->want_nulls == 0) {
- /* Move to the next expectation */
- sel->left = 0;
- tlv_constr = 1;
- }
-
- continue;
- }
-
- /*
- * Set up expected tags,
- * depending on ASN.1 type being decoded.
- */
- switch(type_variant) {
- case _TT_BIT_STRING:
- /* X.690: 8.6.4.1, NOTE 2 */
- /* Fall through */
- case _TT_GENERIC:
- default:
- if(sel) {
- int level = sel->cont_level;
- if(level < td->all_tags_count) {
- expected_tag = td->all_tags[level];
- break;
- } else if(td->all_tags_count) {
- expected_tag = td->all_tags
- [td->all_tags_count - 1];
- break;
- }
- /* else, Fall through */
- }
- /* Fall through */
- case _TT_ANY:
- expected_tag = tlv_tag;
- break;
- }
-
-
- if(tlv_tag != expected_tag) {
- char buf[2][32];
- ber_tlv_tag_snprint(tlv_tag,
- buf[0], sizeof(buf[0]));
- ber_tlv_tag_snprint(td->tags[td->tags_count-1],
- buf[1], sizeof(buf[1]));
- ASN_DEBUG("Tag does not match expectation: %s != %s",
- buf[0], buf[1]);
- RETURN(RC_FAIL);
- }
-
- tlvl = tl + ll; /* Combined length of T and L encoding */
- if((tlv_len + tlvl) < 0) {
- /* tlv_len value is too big */
- ASN_DEBUG("TLV encoding + length (%ld) is too big",
- (long)tlv_len);
- RETURN(RC_FAIL);
- }
-
- /*
- * Append a new expectation.
- */
- sel = OS__add_stack_el(stck);
- if(!sel) RETURN(RC_FAIL);
-
- sel->tag = tlv_tag;
-
- sel->want_nulls = (tlv_len==-1);
- if(sel->prev && sel->prev->left != -1) {
- /* Check that the parent frame is big enough */
- if(sel->prev->left < tlvl + (tlv_len==-1?0:tlv_len))
- RETURN(RC_FAIL);
- if(tlv_len == -1)
- sel->left = sel->prev->left - tlvl;
- else
- sel->left = tlv_len;
- } else {
- sel->left = tlv_len;
- }
- if(type_variant == _TT_ANY
- && (tag_mode != 1 || sel->cont_level))
- APPEND(buf_ptr, tlvl);
- sel->got += tlvl;
- ADVANCE(tlvl);
-
- ASN_DEBUG("+EXPECT2 got=%ld left=%ld, wn=%d, clvl=%d",
- (long)sel->got, (long)sel->left,
- sel->want_nulls, sel->cont_level);
-
- } while(tlv_constr);
- if(sel == NULL) {
- /* Finished operation, "phase out" */
- ASN_DEBUG("Phase out");
- _CH_PHASE(ctx, +3);
- break;
- }
-
- NEXT_PHASE(ctx);
- /* Fall through */
- case 2:
- stck = (struct _stack *)ctx->ptr;
- sel = stck->cur_ptr;
- ASN_DEBUG("Phase 2: Need %ld bytes, size=%ld, alrg=%ld, wn=%d",
- (long)sel->left, (long)size, (long)sel->got,
- sel->want_nulls);
- {
- ber_tlv_len_t len;
-
- assert(sel->left >= 0);
-
- len = ((ber_tlv_len_t)size < sel->left)
- ? (ber_tlv_len_t)size : sel->left;
- if(len > 0) {
- if(type_variant == _TT_BIT_STRING
- && sel->bits_chopped == 0) {
- /* Put the unused-bits-octet away */
- st->bits_unused = *(const uint8_t *)buf_ptr;
- APPEND(((const char *)buf_ptr+1), (len - 1));
- sel->bits_chopped = 1;
- } else {
- APPEND(buf_ptr, len);
- }
- ADVANCE(len);
- sel->left -= len;
- sel->got += len;
- }
-
- if(sel->left) {
- ASN_DEBUG("OS left %ld, size = %ld, wn=%d\n",
- (long)sel->left, (long)size, sel->want_nulls);
- RETURN(RC_WMORE);
- }
-
- PREV_PHASE(ctx);
- goto phase1;
- }
- break;
- case 3:
- phase3:
- /*
- * Primitive form, no stack required.
- */
- assert(ctx->left >= 0);
-
- if(size < (size_t)ctx->left) {
- if(!size) RETURN(RC_WMORE);
- if(type_variant == _TT_BIT_STRING && !ctx->context) {
- st->bits_unused = *(const uint8_t *)buf_ptr;
- ctx->left--;
- ADVANCE(1);
- }
- APPEND(buf_ptr, size);
- assert(ctx->context > 0);
- ctx->left -= size;
- ADVANCE(size);
- RETURN(RC_WMORE);
- } else {
- if(type_variant == _TT_BIT_STRING
- && !ctx->context && ctx->left) {
- st->bits_unused = *(const uint8_t *)buf_ptr;
- ctx->left--;
- ADVANCE(1);
- }
- APPEND(buf_ptr, ctx->left);
- ADVANCE(ctx->left);
- ctx->left = 0;
-
- NEXT_PHASE(ctx);
- }
- break;
- }
-
- if(sel) {
- ASN_DEBUG("3sel p=%p, wn=%d, l=%ld, g=%ld, size=%ld",
- sel->prev, sel->want_nulls,
- (long)sel->left, (long)sel->got, (long)size);
- if(sel->prev || sel->want_nulls > 1 || sel->left > 0) {
- RETURN(RC_WMORE);
- }
- }
-
- /*
- * BIT STRING-specific processing.
- */
- if(type_variant == _TT_BIT_STRING && st->size) {
- /* Finalize BIT STRING: zero out unused bits. */
- st->buf[st->size-1] &= 0xff << st->bits_unused;
- }
-
- ASN_DEBUG("Took %ld bytes to encode %s: [%s]:%ld",
- (long)consumed_myself, td->name,
- (type_variant == _TT_GENERIC) ? (char *)st->buf : "<data>",
- (long)st->size);
-
-
- RETURN(RC_OK);
-}
-
-/*
- * Encode OCTET STRING type using DER.
- */
-asn_enc_rval_t
-OCTET_STRING_encode_der(asn_TYPE_descriptor_t *td, void *sptr,
- int tag_mode, ber_tlv_tag_t tag,
- asn_app_consume_bytes_f *cb, void *app_key) {
- asn_enc_rval_t er;
- asn_OCTET_STRING_specifics_t *specs = td->specifics
- ? (asn_OCTET_STRING_specifics_t *)td->specifics
- : &asn_DEF_OCTET_STRING_specs;
- BIT_STRING_t *st = (BIT_STRING_t *)sptr;
- OS_type_e type_variant = (OS_type_e)specs->subvariant;
- int fix_last_byte = 0;
-
- ASN_DEBUG("%s %s as OCTET STRING",
- cb?"Estimating":"Encoding", td->name);
-
- /*
- * Write tags.
- */
- if(type_variant != _TT_ANY || tag_mode == 1) {
- er.encoded = der_write_tags(td,
- (type_variant == _TT_BIT_STRING) + st->size,
- tag_mode, type_variant == _TT_ANY, tag, cb, app_key);
- if(er.encoded == -1) {
- er.failed_type = td;
- er.structure_ptr = sptr;
- return er;
- }
- } else {
- /* Disallow: [<tag>] IMPLICIT ANY */
- assert(type_variant != _TT_ANY || tag_mode != -1);
- er.encoded = 0;
- }
-
- if(!cb) {
- er.encoded += (type_variant == _TT_BIT_STRING) + st->size;
- _ASN_ENCODED_OK(er);
- }
-
- /*
- * Prepare to deal with the last octet of BIT STRING.
- */
- if(type_variant == _TT_BIT_STRING) {
- uint8_t b = st->bits_unused & 0x07;
- if(b && st->size) fix_last_byte = 1;
- _ASN_CALLBACK(&b, 1);
- er.encoded++;
- }
-
- /* Invoke callback for the main part of the buffer */
- _ASN_CALLBACK(st->buf, st->size - fix_last_byte);
-
- /* The last octet should be stripped off the unused bits */
- if(fix_last_byte) {
- uint8_t b = st->buf[st->size-1] & (0xff << st->bits_unused);
- _ASN_CALLBACK(&b, 1);
- }
-
- er.encoded += st->size;
- _ASN_ENCODED_OK(er);
-cb_failed:
- _ASN_ENCODE_FAILED;
-}
-
-asn_enc_rval_t
-OCTET_STRING_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) {
- static const char *h2c = "0123456789ABCDEF";
- const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
- asn_enc_rval_t er;
- char scratch[16 * 3 + 4];
- char *p = scratch;
- uint8_t *buf;
- uint8_t *end;
- size_t i;
-
- if(!st || !st->buf)
- _ASN_ENCODE_FAILED;
-
- er.encoded = 0;
-
- /*
- * Dump the contents of the buffer in hexadecimal.
- */
- buf = st->buf;
- end = buf + st->size;
- if(flags & XER_F_CANONICAL) {
- char *scend = scratch + (sizeof(scratch) - 2);
- for(; buf < end; buf++) {
- if(p >= scend) {
- _ASN_CALLBACK(scratch, p - scratch);
- er.encoded += p - scratch;
- p = scratch;
- }
- *p++ = h2c[(*buf >> 4) & 0x0F];
- *p++ = h2c[*buf & 0x0F];
- }
-
- _ASN_CALLBACK(scratch, p-scratch); /* Dump the rest */
- er.encoded += p - scratch;
- } else {
- for(i = 0; buf < end; buf++, i++) {
- if(!(i % 16) && (i || st->size > 16)) {
- _ASN_CALLBACK(scratch, p-scratch);
- er.encoded += (p-scratch);
- p = scratch;
- _i_ASN_TEXT_INDENT(1, ilevel);
- }
- *p++ = h2c[(*buf >> 4) & 0x0F];
- *p++ = h2c[*buf & 0x0F];
- *p++ = 0x20;
- }
- if(p - scratch) {
- p--; /* Remove the tail space */
- _ASN_CALLBACK(scratch, p-scratch); /* Dump the rest */
- er.encoded += p - scratch;
- if(st->size > 16)
- _i_ASN_TEXT_INDENT(1, ilevel-1);
- }
- }
-
- _ASN_ENCODED_OK(er);
-cb_failed:
- _ASN_ENCODE_FAILED;
-}
-
-static struct OCTET_STRING__xer_escape_table_s {
- char *string;
- int size;
-} OCTET_STRING__xer_escape_table[] = {
-#define OSXET(s) { s, sizeof(s) - 1 }
- OSXET("\074\156\165\154\057\076"), /* <nul/> */
- OSXET("\074\163\157\150\057\076"), /* <soh/> */
- OSXET("\074\163\164\170\057\076"), /* <stx/> */
- OSXET("\074\145\164\170\057\076"), /* <etx/> */
- OSXET("\074\145\157\164\057\076"), /* <eot/> */
- OSXET("\074\145\156\161\057\076"), /* <enq/> */
- OSXET("\074\141\143\153\057\076"), /* <ack/> */
- OSXET("\074\142\145\154\057\076"), /* <bel/> */
- OSXET("\074\142\163\057\076"), /* <bs/> */
- OSXET("\011"), /* \t */
- OSXET("\012"), /* \n */
- OSXET("\074\166\164\057\076"), /* <vt/> */
- OSXET("\074\146\146\057\076"), /* <ff/> */
- OSXET("\015"), /* \r */
- OSXET("\074\163\157\057\076"), /* <so/> */
- OSXET("\074\163\151\057\076"), /* <si/> */
- OSXET("\074\144\154\145\057\076"), /* <dle/> */
- OSXET("\074\144\143\061\057\076"), /* <de1/> */
- OSXET("\074\144\143\062\057\076"), /* <de2/> */
- OSXET("\074\144\143\063\057\076"), /* <de3/> */
- OSXET("\074\144\143\064\057\076"), /* <de4/> */
- OSXET("\074\156\141\153\057\076"), /* <nak/> */
- OSXET("\074\163\171\156\057\076"), /* <syn/> */
- OSXET("\074\145\164\142\057\076"), /* <etb/> */
- OSXET("\074\143\141\156\057\076"), /* <can/> */
- OSXET("\074\145\155\057\076"), /* <em/> */
- OSXET("\074\163\165\142\057\076"), /* <sub/> */
- OSXET("\074\145\163\143\057\076"), /* <esc/> */
- OSXET("\074\151\163\064\057\076"), /* <is4/> */
- OSXET("\074\151\163\063\057\076"), /* <is3/> */
- OSXET("\074\151\163\062\057\076"), /* <is2/> */
- OSXET("\074\151\163\061\057\076"), /* <is1/> */
- { 0, 0 }, /* " " */
- { 0, 0 }, /* ! */
- { 0, 0 }, /* \" */
- { 0, 0 }, /* # */
- { 0, 0 }, /* $ */
- { 0, 0 }, /* % */
- OSXET("\046\141\155\160\073"), /* & */
- { 0, 0 }, /* ' */
- {0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, /* ()*+,-./ */
- {0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, /* 01234567 */
- {0,0},{0,0},{0,0},{0,0}, /* 89:; */
- OSXET("\046\154\164\073"), /* < */
- { 0, 0 }, /* = */
- OSXET("\046\147\164\073"), /* > */
-};
-
-static int
-OS__check_escaped_control_char(const void *buf, int size) {
- size_t i;
- /*
- * Inefficient algorithm which translates the escape sequences
- * defined above into characters. Returns -1 if not found.
- * TODO: replace by a faster algorithm (bsearch(), hash or
- * nested table lookups).
- */
- for(i = 0; i < 32 /* Don't spend time on the bottom half */; i++) {
- struct OCTET_STRING__xer_escape_table_s *el;
- el = &OCTET_STRING__xer_escape_table[i];
- if(el->size == size && memcmp(buf, el->string, size) == 0)
- return i;
- }
- return -1;
-}
-
-static int
-OCTET_STRING__handle_control_chars(void *struct_ptr, const void *chunk_buf, size_t chunk_size) {
- /*
- * This might be one of the escape sequences
- * for control characters. Check it out.
- * #11.15.5
- */
- int control_char = OS__check_escaped_control_char(chunk_buf,chunk_size);
- if(control_char >= 0) {
- OCTET_STRING_t *st = (OCTET_STRING_t *)struct_ptr;
- void *p = REALLOC(st->buf, st->size + 2);
- if(p) {
- st->buf = (uint8_t *)p;
- st->buf[st->size++] = control_char;
- st->buf[st->size] = '\0'; /* nul-termination */
- return 0;
- }
- }
-
- return -1; /* No, it's not */
-}
-
-asn_enc_rval_t
-OCTET_STRING_encode_xer_utf8(asn_TYPE_descriptor_t *td, void *sptr,
- int ilevel, enum xer_encoder_flags_e flags,
- asn_app_consume_bytes_f *cb, void *app_key) {
- const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
- asn_enc_rval_t er;
- uint8_t *buf, *end;
- uint8_t *ss; /* Sequence start */
- ssize_t encoded_len = 0;
-
- (void)ilevel; /* Unused argument */
- (void)flags; /* Unused argument */
-
- if(!st || !st->buf)
- _ASN_ENCODE_FAILED;
-
- buf = st->buf;
- end = buf + st->size;
- for(ss = buf; buf < end; buf++) {
- unsigned int ch = *buf;
- int s_len; /* Special encoding sequence length */
-
- /*
- * Escape certain characters: X.680/11.15
- */
- if(ch < sizeof(OCTET_STRING__xer_escape_table)
- /sizeof(OCTET_STRING__xer_escape_table[0])
- && (s_len = OCTET_STRING__xer_escape_table[ch].size)) {
- if(((buf - ss) && cb(ss, buf - ss, app_key) < 0)
- || cb(OCTET_STRING__xer_escape_table[ch].string, s_len,
- app_key) < 0)
- _ASN_ENCODE_FAILED;
- encoded_len += (buf - ss) + s_len;
- ss = buf + 1;
- }
- }
-
- encoded_len += (buf - ss);
- if((buf - ss) && cb(ss, buf - ss, app_key) < 0)
- _ASN_ENCODE_FAILED;
-
- er.encoded = encoded_len;
- _ASN_ENCODED_OK(er);
-}
-
-/*
- * Convert from hexadecimal format (cstring): "AB CD EF"
- */
-static ssize_t OCTET_STRING__convert_hexadecimal(void *sptr, const void *chunk_buf, size_t chunk_size, int have_more) {
- OCTET_STRING_t *st = (OCTET_STRING_t *)sptr;
- const char *chunk_stop = (const char *)chunk_buf;
- const char *p = chunk_stop;
- const char *pend = p + chunk_size;
- unsigned int clv = 0;
- int half = 0; /* Half bit */
- uint8_t *buf;
-
- /* Reallocate buffer according to high cap estimation */
- ssize_t _ns = st->size + (chunk_size + 1) / 2;
- void *nptr = REALLOC(st->buf, _ns + 1);
- if(!nptr) return -1;
- st->buf = (uint8_t *)nptr;
- buf = st->buf + st->size;
-
- /*
- * If something like " a b c " appears here, the " a b":3 will be
- * converted, and the rest skipped. That is, unless buf_size is greater
- * than chunk_size, then it'll be equivalent to "ABC0".
- */
- for(; p < pend; p++) {
- int ch = *(const unsigned char *)p;
- switch(ch) {
- case 0x09: case 0x0a: case 0x0c: case 0x0d:
- case 0x20:
- /* Ignore whitespace */
- continue;
- case 0x30: case 0x31: case 0x32: case 0x33: case 0x34: /*01234*/
- case 0x35: case 0x36: case 0x37: case 0x38: case 0x39: /*56789*/
- clv = (clv << 4) + (ch - 0x30);
- break;
- case 0x41: case 0x42: case 0x43: /* ABC */
- case 0x44: case 0x45: case 0x46: /* DEF */
- clv = (clv << 4) + (ch - 0x41 + 10);
- break;
- case 0x61: case 0x62: case 0x63: /* abc */
- case 0x64: case 0x65: case 0x66: /* def */
- clv = (clv << 4) + (ch - 0x61 + 10);
- break;
- default:
- *buf = 0; /* JIC */
- return -1;
- }
- if(half++) {
- half = 0;
- *buf++ = clv;
- chunk_stop = p + 1;
- }
- }
-
- /*
- * Check partial decoding.
- */
- if(half) {
- if(have_more) {
- /*
- * Partial specification is fine,
- * because no more more PXER_TEXT data is available.
- */
- *buf++ = clv << 4;
- chunk_stop = p;
- }
- } else {
- chunk_stop = p;
- }
-
- st->size = buf - st->buf; /* Adjust the buffer size */
- assert(st->size <= _ns);
- st->buf[st->size] = 0; /* Courtesy termination */
-
- return (chunk_stop - (const char *)chunk_buf); /* Converted size */
-}
-
-/*
- * Convert from binary format: "00101011101"
- */
-static ssize_t OCTET_STRING__convert_binary(void *sptr, const void *chunk_buf, size_t chunk_size, int have_more) {
- BIT_STRING_t *st = (BIT_STRING_t *)sptr;
- const char *p = (const char *)chunk_buf;
- const char *pend = p + chunk_size;
- int bits_unused = st->bits_unused & 0x7;
- uint8_t *buf;
-
- /* Reallocate buffer according to high cap estimation */
- ssize_t _ns = st->size + (chunk_size + 7) / 8;
- void *nptr = REALLOC(st->buf, _ns + 1);
- if(!nptr) return -1;
- st->buf = (uint8_t *)nptr;
- buf = st->buf + st->size;
-
- (void)have_more;
-
- if(bits_unused == 0)
- bits_unused = 8;
- else if(st->size)
- buf--;
-
- /*
- * Convert series of 0 and 1 into the octet string.
- */
- for(; p < pend; p++) {
- int ch = *(const unsigned char *)p;
- switch(ch) {
- case 0x09: case 0x0a: case 0x0c: case 0x0d:
- case 0x20:
- /* Ignore whitespace */
- break;
- case 0x30:
- case 0x31:
- if(bits_unused-- <= 0) {
- *++buf = 0; /* Clean the cell */
- bits_unused = 7;
- }
- *buf |= (ch&1) << bits_unused;
- break;
- default:
- st->bits_unused = bits_unused;
- return -1;
- }
- }
-
- if(bits_unused == 8) {
- st->size = buf - st->buf;
- st->bits_unused = 0;
- } else {
- st->size = buf - st->buf + 1;
- st->bits_unused = bits_unused;
- }
-
- assert(st->size <= _ns);
- st->buf[st->size] = 0; /* Courtesy termination */
-
- return chunk_size; /* Converted in full */
-}
-
-/*
- * Something like strtod(), but with stricter rules.
- */
-static int
-OS__strtoent(int base, const char *buf, const char *end, int32_t *ret_value) {
- int32_t val = 0;
- const char *p;
-
- for(p = buf; p < end; p++) {
- int ch = *p;
-
- /* Strange huge value */
- if((val * base + base) < 0)
- return -1;
-
- switch(ch) {
- case 0x30: case 0x31: case 0x32: case 0x33: case 0x34: /*01234*/
- case 0x35: case 0x36: case 0x37: case 0x38: case 0x39: /*56789*/
- val = val * base + (ch - 0x30);
- break;
- case 0x41: case 0x42: case 0x43: /* ABC */
- case 0x44: case 0x45: case 0x46: /* DEF */
- val = val * base + (ch - 0x41 + 10);
- break;
- case 0x61: case 0x62: case 0x63: /* abc */
- case 0x64: case 0x65: case 0x66: /* def */
- val = val * base + (ch - 0x61 + 10);
- break;
- case 0x3b: /* ';' */
- *ret_value = val;
- return (p - buf) + 1;
- default:
- return -1; /* Character set error */
- }
- }
-
- *ret_value = -1;
- return (p - buf);
-}
-
-/*
- * Convert from the plain UTF-8 format, expanding entity references: "2 < 3"
- */
-static ssize_t OCTET_STRING__convert_entrefs(void *sptr, const void *chunk_buf, size_t chunk_size, int have_more) {
- OCTET_STRING_t *st = (OCTET_STRING_t *)sptr;
- const char *p = (const char *)chunk_buf;
- const char *pend = p + chunk_size;
- uint8_t *buf;
-
- /* Reallocate buffer */
- ssize_t _ns = st->size + chunk_size;
- void *nptr = REALLOC(st->buf, _ns + 1);
- if(!nptr) return -1;
- st->buf = (uint8_t *)nptr;
- buf = st->buf + st->size;
-
- /*
- * Convert series of 0 and 1 into the octet string.
- */
- for(; p < pend; p++) {
- int ch = *(const unsigned char *)p;
- int len; /* Length of the rest of the chunk */
-
- if(ch != 0x26 /* '&' */) {
- *buf++ = ch;
- continue; /* That was easy... */
- }
-
- /*
- * Process entity reference.
- */
- len = chunk_size - (p - (const char *)chunk_buf);
- if(len == 1 /* "&" */) goto want_more;
- if(p[1] == 0x23 /* '#' */) {
- const char *pval; /* Pointer to start of digits */
- int32_t val = 0; /* Entity reference value */
- int base;
-
- if(len == 2 /* "&#" */) goto want_more;
- if(p[2] == 0x78 /* 'x' */)
- pval = p + 3, base = 16;
- else
- pval = p + 2, base = 10;
- len = OS__strtoent(base, pval, p + len, &val);
- if(len == -1) {
- /* Invalid charset. Just copy verbatim. */
- *buf++ = ch;
- continue;
- }
- if(!len || pval[len-1] != 0x3b) goto want_more;
- assert(val > 0);
- p += (pval - p) + len - 1; /* Advance past entref */
-
- if(val < 0x80) {
- *buf++ = (char)val;
- } else if(val < 0x800) {
- *buf++ = 0xc0 | ((val >> 6));
- *buf++ = 0x80 | ((val & 0x3f));
- } else if(val < 0x10000) {
- *buf++ = 0xe0 | ((val >> 12));
- *buf++ = 0x80 | ((val >> 6) & 0x3f);
- *buf++ = 0x80 | ((val & 0x3f));
- } else if(val < 0x200000) {
- *buf++ = 0xf0 | ((val >> 18));
- *buf++ = 0x80 | ((val >> 12) & 0x3f);
- *buf++ = 0x80 | ((val >> 6) & 0x3f);
- *buf++ = 0x80 | ((val & 0x3f));
- } else if(val < 0x4000000) {
- *buf++ = 0xf8 | ((val >> 24));
- *buf++ = 0x80 | ((val >> 18) & 0x3f);
- *buf++ = 0x80 | ((val >> 12) & 0x3f);
- *buf++ = 0x80 | ((val >> 6) & 0x3f);
- *buf++ = 0x80 | ((val & 0x3f));
- } else {
- *buf++ = 0xfc | ((val >> 30) & 0x1);
- *buf++ = 0x80 | ((val >> 24) & 0x3f);
- *buf++ = 0x80 | ((val >> 18) & 0x3f);
- *buf++ = 0x80 | ((val >> 12) & 0x3f);
- *buf++ = 0x80 | ((val >> 6) & 0x3f);
- *buf++ = 0x80 | ((val & 0x3f));
- }
- } else {
- /*
- * Ugly, limited parsing of & > <
- */
- char *sc = (char *)memchr(p, 0x3b, len > 5 ? 5 : len);
- if(!sc) goto want_more;
- if((sc - p) == 4
- && p[1] == 0x61 /* 'a' */
- && p[2] == 0x6d /* 'm' */
- && p[3] == 0x70 /* 'p' */) {
- *buf++ = 0x26;
- p = sc;
- continue;
- }
- if((sc - p) == 3) {
- if(p[1] == 0x6c) {
- *buf = 0x3c; /* '<' */
- } else if(p[1] == 0x67) {
- *buf = 0x3e; /* '>' */
- } else {
- /* Unsupported entity reference */
- *buf++ = ch;
- continue;
- }
- if(p[2] != 0x74) {
- /* Unsupported entity reference */
- *buf++ = ch;
- continue;
- }
- buf++;
- p = sc;
- continue;
- }
- /* Unsupported entity reference */
- *buf++ = ch;
- }
-
- continue;
- want_more:
- if(have_more) {
- /*
- * We know that no more data (of the same type)
- * is coming. Copy the rest verbatim.
- */
- *buf++ = ch;
- continue;
- }
- chunk_size = (p - (const char *)chunk_buf);
- /* Processing stalled: need more data */
- break;
- }
-
- st->size = buf - st->buf;
- assert(st->size <= _ns);
- st->buf[st->size] = 0; /* Courtesy termination */
-
- return chunk_size; /* Converted in full */
-}
-
-/*
- * Decode OCTET STRING from the XML element's body.
- */
-static asn_dec_rval_t
-OCTET_STRING__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,
- int (*opt_unexpected_tag_decoder)
- (void *struct_ptr, const void *chunk_buf, size_t chunk_size),
- ssize_t (*body_receiver)
- (void *struct_ptr, const void *chunk_buf, size_t chunk_size,
- int have_more)
-) {
- OCTET_STRING_t *st = (OCTET_STRING_t *)*sptr;
- asn_OCTET_STRING_specifics_t *specs = td->specifics
- ? (asn_OCTET_STRING_specifics_t *)td->specifics
- : &asn_DEF_OCTET_STRING_specs;
- const char *xml_tag = opt_mname ? opt_mname : td->xml_tag;
- asn_struct_ctx_t *ctx; /* Per-structure parser context */
- asn_dec_rval_t rval; /* Return value from the decoder */
- int st_allocated;
-
- /*
- * Create the string if does not exist.
- */
- if(!st) {
- st = (OCTET_STRING_t *)CALLOC(1, specs->struct_size);
- *sptr = (void *)st;
- if(!st) goto sta_failed;
- st_allocated = 1;
- } else {
- st_allocated = 0;
- }
- if(!st->buf) {
- /* This is separate from above section */
- st->buf = (uint8_t *)CALLOC(1, 1);
- if(!st->buf) {
- if(st_allocated) {
- *sptr = 0;
- goto stb_failed;
- } else {
- goto sta_failed;
- }
- }
- }
-
- /* Restore parsing context */
- ctx = (asn_struct_ctx_t *)(((char *)*sptr) + specs->ctx_offset);
-
- return xer_decode_general(opt_codec_ctx, ctx, *sptr, xml_tag,
- buf_ptr, size, opt_unexpected_tag_decoder, body_receiver);
-
-stb_failed:
- FREEMEM(st);
-sta_failed:
- rval.code = RC_FAIL;
- rval.consumed = 0;
- return rval;
-}
-
-/*
- * Decode OCTET STRING from the hexadecimal data.
- */
-asn_dec_rval_t
-OCTET_STRING_decode_xer_hex(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 OCTET_STRING__decode_xer(opt_codec_ctx, td, sptr, opt_mname,
- buf_ptr, size, 0, OCTET_STRING__convert_hexadecimal);
-}
-
-/*
- * Decode OCTET STRING from the binary (0/1) data.
- */
-asn_dec_rval_t
-OCTET_STRING_decode_xer_binary(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 OCTET_STRING__decode_xer(opt_codec_ctx, td, sptr, opt_mname,
- buf_ptr, size, 0, OCTET_STRING__convert_binary);
-}
-
-/*
- * Decode OCTET STRING from the string (ASCII/UTF-8) data.
- */
-asn_dec_rval_t
-OCTET_STRING_decode_xer_utf8(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 OCTET_STRING__decode_xer(opt_codec_ctx, td, sptr, opt_mname,
- buf_ptr, size,
- OCTET_STRING__handle_control_chars,
- OCTET_STRING__convert_entrefs);
-}
-
-asn_dec_rval_t
-OCTET_STRING_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_OCTET_STRING_specifics_t *specs = td->specifics
- ? (asn_OCTET_STRING_specifics_t *)td->specifics
- : &asn_DEF_OCTET_STRING_specs;
- asn_per_constraint_t *ct = constraints ? &constraints->size
- : (td->per_constraints
- ? &td->per_constraints->size
- : &asn_DEF_OCTET_STRING_constraint);
- asn_dec_rval_t rval = { RC_OK, 0 };
- BIT_STRING_t *st = (BIT_STRING_t *)*sptr;
- ssize_t consumed_myself = 0;
- int repeat;
- int unit_bits = (specs->subvariant != 1) * 7 + 1;
-
- (void)opt_codec_ctx;
-
- /*
- * Allocate the string.
- */
- if(!st) {
- st = (BIT_STRING_t *)(*sptr = CALLOC(1, specs->struct_size));
- if(!st) RETURN(RC_FAIL);
- }
-
- ASN_DEBUG("PER Decoding %s %ld .. %ld bits %d",
- ct->flags & APC_EXTENSIBLE ? "extensible" : "fixed",
- ct->lower_bound, ct->upper_bound, ct->effective_bits);
-
- if(ct->flags & APC_EXTENSIBLE) {
- int inext = per_get_few_bits(pd, 1);
- if(inext < 0) RETURN(RC_WMORE);
- if(inext) ct = &asn_DEF_OCTET_STRING_constraint;
- consumed_myself = 0;
- }
-
- if(ct->effective_bits >= 0
- && (!st->buf || st->size < ct->upper_bound)) {
- FREEMEM(st->buf);
- if(unit_bits == 1) {
- st->size = (ct->upper_bound + 7) >> 3;
- } else {
- st->size = ct->upper_bound;
- }
- st->buf = (uint8_t *)MALLOC(st->size + 1);
- if(!st->buf) { st->size = 0; RETURN(RC_FAIL); }
- }
-
- /* X.691, #16.5: zero-length encoding */
- /* X.691, #16.6: short fixed length encoding (up to 2 octets) */
- /* X.691, #16.7: long fixed length encoding (up to 64K octets) */
- if(ct->effective_bits == 0) {
- int ret = per_get_many_bits(pd, st->buf, 0,
- unit_bits * ct->upper_bound);
- if(ret < 0) RETURN(RC_WMORE);
- consumed_myself += unit_bits * ct->upper_bound;
- st->buf[st->size] = 0;
- if(unit_bits == 1 && (ct->upper_bound & 0x7))
- st->bits_unused = 8 - (ct->upper_bound & 0x7);
- RETURN(RC_OK);
- }
-
- st->size = 0;
- do {
- ssize_t len_bytes;
- ssize_t len_bits;
- void *p;
- int ret;
-
- /* Get the PER length */
- len_bits = uper_get_length(pd, ct->effective_bits, &repeat);
- if(len_bits < 0) RETURN(RC_WMORE);
- len_bits += ct->lower_bound;
-
- ASN_DEBUG("Got PER length eb %ld, len %ld, %s (%s)",
- (long)ct->effective_bits, (long)len_bits,
- repeat ? "repeat" : "once", td->name);
- if(unit_bits == 1) {
- len_bytes = (len_bits + 7) >> 3;
- if(len_bits & 0x7)
- st->bits_unused = 8 - (len_bits & 0x7);
- /* len_bits be multiple of 16K if repeat is set */
- } else {
- len_bytes = len_bits;
- len_bits = len_bytes << 3;
- }
- p = REALLOC(st->buf, st->size + len_bytes + 1);
- if(!p) RETURN(RC_FAIL);
- st->buf = (uint8_t *)p;
-
- ret = per_get_many_bits(pd, &st->buf[st->size], 0, len_bits);
- if(ret < 0) RETURN(RC_WMORE);
- st->size += len_bytes;
- } while(repeat);
- st->buf[st->size] = 0; /* nul-terminate */
-
- return rval;
-}
-
-asn_enc_rval_t
-OCTET_STRING_encode_uper(asn_TYPE_descriptor_t *td,
- asn_per_constraints_t *constraints, void *sptr, asn_per_outp_t *po) {
-
- asn_OCTET_STRING_specifics_t *specs = td->specifics
- ? (asn_OCTET_STRING_specifics_t *)td->specifics
- : &asn_DEF_OCTET_STRING_specs;
- asn_per_constraint_t *ct = constraints ? &constraints->size
- : (td->per_constraints
- ? &td->per_constraints->size
- : &asn_DEF_OCTET_STRING_constraint);
- const BIT_STRING_t *st = (const BIT_STRING_t *)sptr;
- int unit_bits = (specs->subvariant != 1) * 7 + 1;
- asn_enc_rval_t er;
- int ct_extensible = ct->flags & APC_EXTENSIBLE;
- int inext = 0; /* Lies not within extension root */
- int sizeinunits = st->size;
- const uint8_t *buf;
- int ret;
-
- if(!st || !st->buf)
- _ASN_ENCODE_FAILED;
-
- if(unit_bits == 1) {
- ASN_DEBUG("BIT STRING of %d bytes, %d bits unused",
- sizeinunits, st->bits_unused);
- sizeinunits = sizeinunits * 8 - (st->bits_unused & 0x07);
- }
-
- ASN_DEBUG("Encoding %s into %d units of %d bits"
- " (%d..%d, effective %d)%s",
- td->name, sizeinunits, unit_bits,
- ct->lower_bound, ct->upper_bound,
- ct->effective_bits, ct_extensible ? " EXT" : "");
-
- /* Figure out wheter size lies within PER visible consrtaint */
-
- if(ct->effective_bits >= 0) {
- if(sizeinunits < ct->lower_bound
- || sizeinunits > ct->upper_bound) {
- if(ct_extensible) {
- ct = &asn_DEF_OCTET_STRING_constraint;
- inext = 1;
- } else
- _ASN_ENCODE_FAILED;
- }
- } else {
- inext = 0;
- }
-
- if(ct_extensible) {
- /* Declare whether length is [not] within extension root */
- if(per_put_few_bits(po, inext, 1))
- _ASN_ENCODE_FAILED;
- }
-
- /* X.691, #16.5: zero-length encoding */
- /* X.691, #16.6: short fixed length encoding (up to 2 octets) */
- /* X.691, #16.7: long fixed length encoding (up to 64K octets) */
- if(ct->effective_bits >= 0) {
- ASN_DEBUG("Encoding %d bytes (%ld), length in %d bits",
- st->size, sizeinunits - ct->lower_bound,
- ct->effective_bits);
- ret = per_put_few_bits(po, sizeinunits - ct->lower_bound,
- ct->effective_bits);
- if(ret) _ASN_ENCODE_FAILED;
- ret = per_put_many_bits(po, st->buf, sizeinunits * unit_bits);
- if(ret) _ASN_ENCODE_FAILED;
- _ASN_ENCODED_OK(er);
- }
-
- ASN_DEBUG("Encoding %d bytes", st->size);
-
- if(sizeinunits == 0) {
- if(uper_put_length(po, 0))
- _ASN_ENCODE_FAILED;
- _ASN_ENCODED_OK(er);
- }
-
- buf = st->buf;
- while(sizeinunits) {
- ssize_t maySave = uper_put_length(po, sizeinunits);
- if(maySave < 0) _ASN_ENCODE_FAILED;
-
- ASN_DEBUG("Encoding %d of %d", maySave, sizeinunits);
-
- ret = per_put_many_bits(po, buf, maySave * unit_bits);
- if(ret) _ASN_ENCODE_FAILED;
-
- if(unit_bits == 1)
- buf += maySave >> 3;
- else
- buf += maySave;
- sizeinunits -= maySave;
- assert(!(maySave & 0x07) || !sizeinunits);
- }
-
- _ASN_ENCODED_OK(er);
-}
-
-int
-OCTET_STRING_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
- asn_app_consume_bytes_f *cb, void *app_key) {
- static const char *h2c = "0123456789ABCDEF";
- const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
- char scratch[16 * 3 + 4];
- char *p = scratch;
- uint8_t *buf;
- uint8_t *end;
- size_t i;
-
- (void)td; /* Unused argument */
-
- if(!st || !st->buf) return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
-
- /*
- * Dump the contents of the buffer in hexadecimal.
- */
- buf = st->buf;
- end = buf + st->size;
- for(i = 0; buf < end; buf++, i++) {
- if(!(i % 16) && (i || st->size > 16)) {
- if(cb(scratch, p - scratch, app_key) < 0)
- return -1;
- _i_INDENT(1);
- p = scratch;
- }
- *p++ = h2c[(*buf >> 4) & 0x0F];
- *p++ = h2c[*buf & 0x0F];
- *p++ = 0x20;
- }
-
- if(p > scratch) {
- p--; /* Remove the tail space */
- if(cb(scratch, p - scratch, app_key) < 0)
- return -1;
- }
-
- return 0;
-}
-
-int
-OCTET_STRING_print_utf8(asn_TYPE_descriptor_t *td, const void *sptr,
- int ilevel, asn_app_consume_bytes_f *cb, void *app_key) {
- const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
-
- (void)td; /* Unused argument */
- (void)ilevel; /* Unused argument */
-
- if(st && st->buf) {
- return (cb(st->buf, st->size, app_key) < 0) ? -1 : 0;
- } else {
- return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
- }
-}
-
-void
-OCTET_STRING_free(asn_TYPE_descriptor_t *td, void *sptr, int contents_only) {
- OCTET_STRING_t *st = (OCTET_STRING_t *)sptr;
- asn_OCTET_STRING_specifics_t *specs = td->specifics
- ? (asn_OCTET_STRING_specifics_t *)td->specifics
- : &asn_DEF_OCTET_STRING_specs;
- asn_struct_ctx_t *ctx = (asn_struct_ctx_t *)
- ((char *)st + specs->ctx_offset);
- struct _stack *stck;
-
- if(!td || !st)
- return;
-
- ASN_DEBUG("Freeing %s as OCTET STRING", td->name);
-
- if(st->buf) {
- FREEMEM(st->buf);
- }
-
- /*
- * Remove decode-time stack.
- */
- stck = (struct _stack *)ctx->ptr;
- if(stck) {
- while(stck->tail) {
- struct _stack_el *sel = stck->tail;
- stck->tail = sel->prev;
- FREEMEM(sel);
- }
- FREEMEM(stck);
- }
-
- if(!contents_only) {
- FREEMEM(st);
- }
-}
-
-/*
- * Conversion routines.
- */
-int
-OCTET_STRING_fromBuf(OCTET_STRING_t *st, const char *str, int len) {
- void *buf;
-
- if(st == 0 || (str == 0 && len)) {
- errno = EINVAL;
- return -1;
- }
-
- /*
- * Clear the OCTET STRING.
- */
- if(str == NULL) {
- FREEMEM(st->buf);
- st->buf = 0;
- st->size = 0;
- return 0;
- }
-
- /* Determine the original string size, if not explicitly given */
- if(len < 0)
- len = strlen(str);
-
- /* Allocate and fill the memory */
- buf = MALLOC(len + 1);
- if(buf == NULL)
- return -1;
-
- memcpy(buf, str, len);
- ((uint8_t *)buf)[len] = '\0'; /* Couldn't use memcpy(len+1)! */
- FREEMEM(st->buf);
- st->buf = (uint8_t *)buf;
- st->size = len;
-
- return 0;
-}
-
-OCTET_STRING_t *
-OCTET_STRING_new_fromBuf(asn_TYPE_descriptor_t *td, const char *str, int len) {
- asn_OCTET_STRING_specifics_t *specs = td->specifics
- ? (asn_OCTET_STRING_specifics_t *)td->specifics
- : &asn_DEF_OCTET_STRING_specs;
- OCTET_STRING_t *st;
-
- st = (OCTET_STRING_t *)CALLOC(1, specs->struct_size);
- if(st && str && OCTET_STRING_fromBuf(st, str, len)) {
- FREEMEM(st);
- st = NULL;
- }
-
- return st;
-}
-
git.stg.codes / stg.git / commitdiff