Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 1 | /*- |
| 2 | * Copyright (c) 2003 Lev Walkin <vlm@lionet.info>. All rights reserved. |
| 3 | * Redistribution and modifications are permitted subject to BSD license. |
| 4 | */ |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 5 | #include <asn_internal.h> |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 6 | #include <BMPString.h> |
| 7 | |
| 8 | /* |
| 9 | * BMPString basic type description. |
| 10 | */ |
| 11 | static ber_tlv_tag_t asn1_DEF_BMPString_tags[] = { |
Lev Walkin | 188ed2c | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 12 | (ASN_TAG_CLASS_UNIVERSAL | (30 << 2)), /* [UNIVERSAL 30] IMPLICIT ...*/ |
| 13 | (ASN_TAG_CLASS_UNIVERSAL | (4 << 2)) /* ... OCTET STRING */ |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 14 | }; |
| 15 | asn1_TYPE_descriptor_t asn1_DEF_BMPString = { |
| 16 | "BMPString", |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 17 | OCTET_STRING_free, /* Implemented in terms of OCTET STRING */ |
| 18 | BMPString_print, |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 19 | asn_generic_no_constraint, /* No constraint by default */ |
| 20 | OCTET_STRING_decode_ber, /* Implemented in terms of OCTET STRING */ |
| 21 | OCTET_STRING_encode_der, /* Implemented in terms of OCTET STRING */ |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 22 | 0, /* Not implemented yet */ |
| 23 | BMPString_encode_xer, /* Conver to UTF8 */ |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 24 | 0, /* Use generic outmost tag fetcher */ |
| 25 | asn1_DEF_BMPString_tags, |
| 26 | sizeof(asn1_DEF_BMPString_tags) |
Lev Walkin | 188ed2c | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 27 | / sizeof(asn1_DEF_BMPString_tags[0]) - 1, |
| 28 | asn1_DEF_BMPString_tags, |
| 29 | sizeof(asn1_DEF_BMPString_tags) |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 30 | / sizeof(asn1_DEF_BMPString_tags[0]), |
Lev Walkin | 449f832 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 31 | 0, 0, /* No members */ |
Lev Walkin | d9bd775 | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 32 | 0 /* No specifics */ |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 33 | }; |
| 34 | |
| 35 | /* |
| 36 | * BMPString specific contents printer. |
| 37 | */ |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 38 | static ssize_t |
| 39 | BMPString__dump(const BMPString_t *st, |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 40 | asn_app_consume_bytes_f *cb, void *app_key) { |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 41 | char scratch[128]; /* Scratchpad buffer */ |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 42 | char *p = scratch; |
| 43 | ssize_t wrote = 0; |
| 44 | uint8_t *ch; |
| 45 | uint8_t *end; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 46 | |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 47 | ch = st->buf; |
| 48 | end = (st->buf + st->size); |
| 49 | for(end--; ch < end; ch += 2) { |
| 50 | uint16_t wc = (ch[0] << 8) | ch[1]; /* 2 bytes */ |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 51 | if(sizeof(scratch) - (p - scratch) < 3) { |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 52 | wrote += p - scratch; |
| 53 | if(cb(scratch, p - scratch, app_key) < 0) |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 54 | return -1; |
| 55 | p = scratch; |
| 56 | } |
| 57 | if(wc < 0x80) { |
| 58 | *p++ = (char)wc; |
| 59 | } else if(wc < 0x800) { |
| 60 | *p++ = 0xc0 | ((wc >> 6)); |
| 61 | *p++ = 0x80 | ((wc & 0x3f)); |
| 62 | } else { |
| 63 | *p++ = 0xe0 | ((wc >> 12)); |
| 64 | *p++ = 0x80 | ((wc >> 6) & 0x3f); |
| 65 | *p++ = 0x80 | ((wc & 0x3f)); |
| 66 | } |
| 67 | } |
| 68 | |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 69 | wrote += p - scratch; |
| 70 | if(cb(scratch, p - scratch, app_key) < 0) |
| 71 | return -1; |
| 72 | |
| 73 | return wrote; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 74 | } |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 75 | |
| 76 | asn_enc_rval_t |
| 77 | BMPString_encode_xer(asn1_TYPE_descriptor_t *td, void *sptr, |
| 78 | int ilevel, enum xer_encoder_flags_e flags, |
| 79 | asn_app_consume_bytes_f *cb, void *app_key) { |
| 80 | const BMPString_t *st = (const BMPString_t *)sptr; |
| 81 | asn_enc_rval_t er; |
| 82 | |
| 83 | (void)ilevel; |
| 84 | (void)flags; |
| 85 | |
| 86 | if(!st || !st->buf) |
| 87 | _ASN_ENCODE_FAILED; |
| 88 | |
| 89 | er.encoded = BMPString__dump(st, cb, app_key); |
| 90 | if(er.encoded < 0) _ASN_ENCODE_FAILED; |
| 91 | |
| 92 | return er; |
| 93 | } |
| 94 | |
| 95 | int |
| 96 | BMPString_print(asn1_TYPE_descriptor_t *td, const void *sptr, int ilevel, |
| 97 | asn_app_consume_bytes_f *cb, void *app_key) { |
| 98 | const BMPString_t *st = (const BMPString_t *)sptr; |
| 99 | |
| 100 | (void)td; /* Unused argument */ |
| 101 | (void)ilevel; /* Unused argument */ |
| 102 | |
Lev Walkin | 8e8078a | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 103 | if(!st || !st->buf) |
| 104 | return (cb("<absent>", 8, app_key) < 0) ? -1 : 0; |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 105 | |
| 106 | if(BMPString__dump(st, cb, app_key) < 0) |
| 107 | return -1; |
| 108 | |
| 109 | return 0; |
| 110 | } |
| 111 | |