2004-06-03 03:38:44 +00:00
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/*-
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* Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
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* Redistribution and modifications are permitted subject to BSD license.
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*/
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2004-09-22 16:06:28 +00:00
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#include <asn_internal.h>
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2004-06-03 03:38:44 +00:00
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#include <UTF8String.h>
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/*
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* UTF8String basic type description.
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*/
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2004-09-29 13:26:15 +00:00
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static ber_tlv_tag_t asn_DEF_UTF8String_tags[] = {
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2004-09-13 08:31:01 +00:00
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(ASN_TAG_CLASS_UNIVERSAL | (12 << 2)), /* [UNIVERSAL 12] IMPLICIT ...*/
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(ASN_TAG_CLASS_UNIVERSAL | (4 << 2)), /* ... OCTET STRING */
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2004-06-03 03:38:44 +00:00
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};
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2004-09-29 13:26:15 +00:00
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asn_TYPE_descriptor_t asn_DEF_UTF8String = {
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2004-06-03 03:38:44 +00:00
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"UTF8String",
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2004-09-22 16:06:28 +00:00
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OCTET_STRING_free,
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UTF8String_print,
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2004-06-03 03:38:44 +00:00
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UTF8String_constraint, /* Check for invalid codes, etc. */
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OCTET_STRING_decode_ber, /* Implemented in terms of OCTET STRING */
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OCTET_STRING_encode_der, /* Implemented in terms of OCTET STRING */
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2004-09-22 16:06:28 +00:00
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0, /* Not implemented yet */
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OCTET_STRING_encode_xer_ascii, /* Already in UTF-8 format */
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2004-06-03 03:38:44 +00:00
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0, /* Use generic outmost tag fetcher */
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2004-09-29 13:26:15 +00:00
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asn_DEF_UTF8String_tags,
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sizeof(asn_DEF_UTF8String_tags)
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/ sizeof(asn_DEF_UTF8String_tags[0]) - 1,
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asn_DEF_UTF8String_tags,
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sizeof(asn_DEF_UTF8String_tags)
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/ sizeof(asn_DEF_UTF8String_tags[0]),
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2004-08-20 13:23:42 +00:00
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0, 0, /* No members */
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2004-06-05 08:17:50 +00:00
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0 /* No specifics */
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2004-06-03 03:38:44 +00:00
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};
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2004-10-02 11:37:38 +00:00
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/*
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* This is the table of length expectations.
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* The second half of this table is only applicable to the long sequentes.
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*/
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static int UTF8String_ht[2][16] = {
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{ /* 0x0 ... 0x7 */
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/* 0000..0111 */
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1, 1, 1, 1, 1, 1, 1, 1,
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/* 1000..1011(0), 1100..1101(2), 1110(3), 1111(-1) */
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0, 0, 0, 0, 2, 2, 3, -1 },
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{ /* 0xF0 .. 0xF7 */
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/* 11110000..11110111 */
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4, 4, 4, 4, 4, 4, 4, 4,
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5, 5, 5, 5, 6, 6, -1, -1 }
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2004-06-03 03:38:44 +00:00
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};
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int
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2004-09-29 13:26:15 +00:00
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UTF8String_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
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2004-06-03 03:38:44 +00:00
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asn_app_consume_bytes_f *app_errlog, void *app_key) {
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ssize_t len;
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2004-08-11 09:07:36 +00:00
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len = UTF8String_length((const UTF8String_t *)sptr, td->name,
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app_errlog, app_key);
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2004-06-03 03:38:44 +00:00
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if(len > 0) len = 0;
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return len;
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}
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ssize_t
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UTF8String_length(const UTF8String_t *st, const char *opt_type_name,
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asn_app_consume_bytes_f *app_errlog, void *app_key) {
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if(st && st->buf) {
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2004-10-02 12:29:44 +00:00
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size_t length;
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2004-06-03 03:38:44 +00:00
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uint8_t *buf = st->buf;
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uint8_t *end = buf + st->size;
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2004-10-02 12:29:44 +00:00
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for(length = 0; buf < end; length++) {
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int ch = *buf;
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int want = UTF8String_ht[0][ch >> 4];
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switch(want) {
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case -1: /* Second half of the table, long sequence */
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want = UTF8String_ht[1][ch & 0x0F];
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if(want != -1)
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break; /* Fine value */
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case 0: /* 10xxxxxx should not appear here */
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_ASN_ERRLOG(app_errlog, app_key,
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"%s: UTF-8 expectation failed "
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"at byte %d (%s:%d)",
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opt_type_name,
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(buf - st->buf) + 1,
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__FILE__, __LINE__);
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return -1;
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2004-06-03 03:38:44 +00:00
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}
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2004-10-02 12:29:44 +00:00
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if(buf + want > end) {
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_ASN_ERRLOG(app_errlog, app_key,
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"%s: truncated UTF-8 sequence (%s:%d)",
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opt_type_name, __FILE__, __LINE__);
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return -1;
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}
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buf += want;
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2004-06-03 03:38:44 +00:00
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}
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return length;
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} else {
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2004-08-11 09:44:13 +00:00
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_ASN_ERRLOG(app_errlog, app_key,
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"%s: value not given", opt_type_name);
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2004-06-03 03:38:44 +00:00
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return -1;
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}
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}
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int
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2004-09-29 13:26:15 +00:00
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UTF8String_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
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2004-06-03 03:38:44 +00:00
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asn_app_consume_bytes_f *cb, void *app_key) {
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2004-08-11 09:07:36 +00:00
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const UTF8String_t *st = (const UTF8String_t *)sptr;
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2004-06-03 03:38:44 +00:00
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2004-06-05 08:17:50 +00:00
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(void)td; /* Unused argument */
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(void)ilevel; /* Unused argument */
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2004-06-03 03:38:44 +00:00
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if(st && st->buf) {
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2004-09-26 13:10:40 +00:00
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return (cb(st->buf, st->size, app_key) < 0) ? -1 : 0;
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2004-06-03 03:38:44 +00:00
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} else {
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2004-09-26 13:10:40 +00:00
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return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
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2004-06-03 03:38:44 +00:00
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}
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}
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