[ViewVC] Diff of: cvs/Convert-BER-XS/XS.xs

Comparing Convert-BER-XS/XS.xs (file contents):
Revision 1.1 by root, Fri Apr 19 16:19:36 2019 UTC vs.
Revision 1.9 by root, Sat Apr 20 02:12:27 2019 UTC

…		…
10	ASN_INTEGER32 = 0x02,	10	ASN_INTEGER32 = 0x02,
11	ASN_BIT_STRING = 0x03,	11	ASN_BIT_STRING = 0x03,
12	ASN_OCTET_STRING = 0x04,	12	ASN_OCTET_STRING = 0x04,
13	ASN_NULL = 0x05,	13	ASN_NULL = 0x05,
14	ASN_OBJECT_IDENTIFIER = 0x06,	14	ASN_OBJECT_IDENTIFIER = 0x06,
		15	ASN_OID = 0x06,
		16	ASN_OBJECT_DESCRIPTOR = 0x07,
		17	ASN_EXTERNAL = 0x08,
		18	ASN_REAL = 0x09,
		19	ASN_ENUMERATED = 0x0a,
		20	ASN_EMBEDDED_PDV = 0x0b,
		21	ASN_UTF8_STRING = 0x0c,
		22	ASN_RELATIVE_OID = 0x0d,
15	ASN_SEQUENCE = 0x10,	23	ASN_SEQUENCE = 0x10,
		24	ASN_SET = 0x11,
		25	ASN_NUMERIC_STRING = 0x12,
		26	ASN_PRINTABLE_STRING = 0x13,
		27	ASN_TELETEX_STRING = 0x14,
		28	ASN_T61_STRING = 0x14,
		29	ASN_VIDEOTEX_STRING = 0x15,
		30	ASN_IA5_STRING = 0x16,
		31	ASN_ASCII_STRING = 0x16,
		32	ASN_UTC_TIME = 0x17,
		33	ASN_GENERALIZED_TIME = 0x18,
		34	ASN_GRAPHIC_STRING = 0x19,
		35	ASN_VISIBLE_STRING = 0x1a,
		36	ASN_ISO646_STRING = 0x1a,
		37	ASN_GENERAL_STRING = 0x1b,
		38	ASN_UNIVERSAL_STRING = 0x1c,
		39	ASN_CHARACTER_STRING = 0x1d,
		40	ASN_BMP_STRING = 0x1e,
16		41
17	ASN_TAG_BER = 0x1f,	42	ASN_TAG_BER = 0x1f,
18	ASN_TAG_MASK = 0x1f,	43	ASN_TAG_MASK = 0x1f,
19		44
20	// primitive/constructed	45	// primitive/constructed
21	ASN_CONSTRUCTED = 0x20,	46	ASN_CONSTRUCTED = 0x20,
22		47
23	// ASN_CLASS	48	// ASN_CLASS
24	ASN_UNIVERSAL = 0x00,	49	ASN_UNIVERSAL = 0x00,
25	ASN_APPLICATION = 0x40,	50	ASN_APPLICATION = 0x01,
26	ASN_CONTEXT = 0x80,	51	ASN_CONTEXT = 0x02,
27	ASN_PRIVATE = 0xc0,	52	ASN_PRIVATE = 0x03,
28		53
29	ASN_CLASS_MASK = 0xc0,	54	ASN_CLASS_MASK = 0xc0,
30	ASN_CLASS_SHIFT = 6,	55	ASN_CLASS_SHIFT = 6,
31		56
32	// ASN_APPLICATION	57	// ASN_APPLICATION SNMP
33	ASN_IPADDRESS = 0x00,	58	SNMP_IPADDRESS = 0x00,
34	ASN_COUNTER32 = 0x01,	59	SNMP_COUNTER32 = 0x01,
35	ASN_UNSIGNED32 = 0x02,	60	SNMP_UNSIGNED32 = 0x02,
36	ASN_TIMETICKS = 0x03,	61	SNMP_TIMETICKS = 0x03,
37	ASN_OPAQUE = 0x04,	62	SNMP_OPAQUE = 0x04,
38	ASN_COUNTER64 = 0x06,	63	SNMP_COUNTER64 = 0x06,
		64	};
		65
		66	enum {
		67	BER_TYPE_BYTES,
		68	BER_TYPE_UTF8,
		69	BER_TYPE_UCS2,
		70	BER_TYPE_UCS4,
		71	BER_TYPE_INT,
		72	BER_TYPE_OID,
		73	BER_TYPE_RELOID,
		74	BER_TYPE_NULL,
		75	BER_TYPE_BOOL,
		76	BER_TYPE_REAL,
		77	BER_TYPE_IPADDRESS,
		78	BER_TYPE_CROAK,
39	};	79	};
40		80
41	enum {	81	enum {
42	BER_CLASS = 0,	82	BER_CLASS = 0,
43	BER_TAG = 1,	83	BER_TAG = 1,
…		…
46	BER_ARRAYSIZE	86	BER_ARRAYSIZE
47	};	87	};
48		88
49	#define MAX_OID_STRLEN 4096	89	#define MAX_OID_STRLEN 4096
50		90
51	static U8 buf, cur;	91	typedef void profile_type;
52	static STRLEN len, rem;	92
		93	static profile_type cur_profile, default_profile;
		94	static SV *buf_sv; // encoding buffer
		95	static U8 buf, cur, *end; // buffer start, current, end
		96
		97	#if PERL_VERSION < 18
		98	# define utf8_to_uvchr_buf(s,e,l) utf8_to_uvchr (s, l)
		99	#endif
		100
		101	#if __GNUC__ >= 3
		102	# define expect(expr,value) __builtin_expect ((expr), (value))
		103	# define INLINE static inline
		104	#else
		105	# define expect(expr,value) (expr)
		106	# define INLINE static
		107	#endif
		108
		109	#define expect_false(expr) expect ((expr) != 0, 0)
		110	#define expect_true(expr) expect ((expr) != 0, 1)
		111
		112	/////////////////////////////////////////////////////////////////////////////
		113
		114	static SV *sviv_cache[32];
53		115
54	// for "small" integers, return a readonly sv, otherwise create a new one	116	// for "small" integers, return a readonly sv, otherwise create a new one
55	static SV *newSVcacheint (int val)	117	static SV *newSVcacheint (int val)
56	{	118	{
57	static SV *cache[32];
58
59	if (val < 0 \|\| val >= sizeof (cache))	119	if (expect_false (val < 0 \|\| val >= sizeof (sviv_cache)))
60	return newSViv (val);	120	return newSViv (val);
61		121
62	if (!cache [val])	122	if (expect_false (!sviv_cache [val]))
63	{	123	{
64	cache [val] = newSVuv (val);	124	sviv_cache [val] = newSVuv (val);
65	SvREADONLY_on (cache [val]);	125	SvREADONLY_on (sviv_cache [val]);
66	}	126	}
67		127
68	return SvREFCNT_inc_NN (cache [val]);	128	return SvREFCNT_inc_NN (sviv_cache [val]);
69	}	129	}
70		130
71	/////////////////////////////////////////////////////////////////////////////	131	/////////////////////////////////////////////////////////////////////////////
72		132
		133	static HV *profile_stash;
		134
		135	static profile_type *
		136	SvPROFILE (SV *profile)
		137	{
		138	if (!SvOK (profile))
		139	return default_profile;
		140
		141	if (!SvROK (profile))
		142	croak ("invalid profile");
		143
		144	profile = SvRV (profile);
		145
		146	if (SvSTASH (profile) != profile_stash)
		147	croak ("invalid profile object");
		148
		149	return (void *)profile;
		150	}
		151
		152	static int
		153	profile_lookup (profile_type *profile, int klass, int tag)
		154	{
		155	SV sv = (SV )profile;
		156	U32 idx = (tag << 2) + klass;
		157
		158	if (expect_false (idx >= SvCUR (sv)))
		159	return BER_TYPE_BYTES;
		160
		161	return SvPVX (sv)[idx];
		162	}
		163
		164	static int
		165	profile_set (profile_type *profile, int klass, int tag, int type)
		166	{
		167	SV sv = (SV )profile;
		168	U32 idx = (tag << 2) + klass;
		169	STRLEN oldlen = SvCUR (sv);
		170	STRLEN newlen = idx + 2;
		171
		172	if (idx >= oldlen)
		173	{
		174	sv_grow (sv, newlen);
		175	memset (SvPVX (sv) + oldlen, BER_TYPE_BYTES, newlen - oldlen);
		176	SvCUR_set (sv, newlen);
		177	}
		178
		179	SvPVX (sv)[idx] = type;
		180	}
		181
		182	static SV *
		183	profile_new ()
		184	{
		185	SV *sv = newSVpvn ("", 0);
		186
		187	static const struct {
		188	int klass;
		189	int tag;
		190	int type;
		191	} *celem, default_map[] = {
		192	{ ASN_UNIVERSAL, ASN_BOOLEAN , BER_TYPE_BOOL },
		193	{ ASN_UNIVERSAL, ASN_INTEGER32 , BER_TYPE_INT },
		194	{ ASN_UNIVERSAL, ASN_NULL , BER_TYPE_NULL },
		195	{ ASN_UNIVERSAL, ASN_OBJECT_IDENTIFIER, BER_TYPE_OID },
		196	{ ASN_UNIVERSAL, ASN_OBJECT_DESCRIPTOR, BER_TYPE_OID },
		197	{ ASN_UNIVERSAL, ASN_RELATIVE_OID , BER_TYPE_RELOID },
		198	{ ASN_UNIVERSAL, ASN_REAL , BER_TYPE_REAL },
		199	{ ASN_UNIVERSAL, ASN_UTF8_STRING , BER_TYPE_UTF8 },
		200	{ ASN_UNIVERSAL, ASN_BMP_STRING , BER_TYPE_UCS2 },
		201	{ ASN_UNIVERSAL, ASN_UNIVERSAL_STRING , BER_TYPE_UCS4 },
		202	};
		203
		204	for (celem = default_map + sizeof (default_map) / sizeof (default_map [0]); celem > default_map; celem--)
		205	profile_set ((void *)sv, celem->klass, celem->tag, celem->type);
		206
		207	return sv_bless (newRV_noinc (sv), profile_stash);
		208	}
		209
		210	/////////////////////////////////////////////////////////////////////////////
		211	// decoder
		212
73	static void	213	static void
74	error (const char *errmsg)	214	error (const char *errmsg)
75	{	215	{
76	croak ("%s at offset 0x%04x", errmsg, cur - buf);	216	croak ("%s at offset 0x%04x", errmsg, cur - buf);
77	}	217	}
78		218
79	static int	219	static void
80	need (int count)	220	want (UV count)
81	{	221	{
82	if (count < 0 \|\| (int)rem < count)	222	if (expect_false ((uintptr_t)(end - cur) < count))
83	{
84	error ("unexpected end of message buffer");	223	error ("unexpected end of message buffer");
85	return 0;
86	}
87
88	return 1;
89	}	224	}
90		225
		226	// get_* functions fetch something from the buffer
		227	// decode_* functions use get_* fun ctions to decode ber values
		228
		229	// get n octets
91	static U8 *	230	static U8 *
92	getn (int count, const U8 *errres)	231	get_n (UV count)
93	{	232	{
94	if (!need (count))	233	want (count);
95	return (U8 *)errres;
96
97	U8 *res = cur;	234	U8 *res = cur;
98
99	cur += count;	235	cur += count;
100	rem -= count;
101
102	return res;	236	return res;
103	}	237	}
104		238
		239	// get single octet
105	static U8	240	static U8
106	get8 (void)	241	get_u8 (void)
107	{	242	{
108	if (rem <= 0)	243	if (cur == end)
109	{
110	error ("unexpected end of message buffer");	244	error ("unexpected end of message buffer");
111	return 0;
112	}
113		245
114	rem--;
115	return *cur++;	246	return *cur++;
116	}	247	}
117		248
		249	// get ber-encoded integer (i.e. pack "w")
118	static U32	250	static U32
119	getb (void)	251	get_w (void)
120	{	252	{
121	U32 res = 0;	253	U32 res = 0;
122		254
123	for (;;)	255	for (;;)
124	{	256	{
125	U8 c = get8 ();	257	U8 c = get_u8 ();
126	res = (res << 7) \| (c & 0x7f);	258	res = (res << 7) \| (c & 0x7f);
127		259
128	if (!(c & 0x80))	260	if (!(c & 0x80))
129	return res;	261	return res;
130	}	262	}
131	}	263	}
132		264
133	static U32	265	static U32
134	process_length (void)	266	get_length (void)
135	{	267	{
136	U32 res = get8 ();	268	U32 res = get_u8 ();
137		269
138	if (res & 0x80)	270	if (res & 0x80)
139	{	271	{
140	int cnt = res & 0x7f;	272	int cnt = res & 0x7f;
141	res = 0;	273	res = 0;
…		…
148		280
149	default:	281	default:
150	error ("ASN.1 length too long");	282	error ("ASN.1 length too long");
151	return 0;	283	return 0;
152		284
153	case 4: res = (res << 8) \| get8 ();	285	case 4: res = (res << 8) \| get_u8 ();
154	case 3: res = (res << 8) \| get8 ();	286	case 3: res = (res << 8) \| get_u8 ();
155	case 2: res = (res << 8) \| get8 ();	287	case 2: res = (res << 8) \| get_u8 ();
156	case 1: res = (res << 8) \| get8 ();	288	case 1: res = (res << 8) \| get_u8 ();
157	}	289	}
158	}	290	}
159		291
160	return res;	292	return res;
161	}	293	}
162		294
163	static U32	295	static SV *
164	process_integer32 (void)	296	decode_int ()
165	{	297	{
166	U32 length = process_length ();	298	int len = get_length ();
167		299
168	if (length <= 0)	300	if (len <= 0)
169	{	301	{
170	error ("INTEGER32 length equal to zero");	302	error ("integer length equal to zero");
171	return 0;	303	return 0;
172	}	304	}
173		305
174	U8 *data = getn (length, 0);	306	U8 *data = get_n (len);
175		307
176	if (!data)	308	int negative = data [0] & 0x80;
177	return 0;
178		309
179	if (length > 5 \|\| (length > 4 && data [0]))	310	UV val = negative ? -1 : 0; // copy signbit to all bits
180	{
181	error ("INTEGER32 length too long");
182	return 0;
183	}
184		311
185	U32 res = data [0] & 0x80 ? 0xffffffff : 0;	312	do
186
187	while (length--)
188	res = (res << 8) \| *data++;	313	val = (val << 8) \| *data++;
		314	while (--len);
189		315
190	return res;	316	// the cast to IV relies on implementation-defined behaviour (two's complement cast)
		317	// but that's ok, as perl relies on it as well.
		318	return negative ? newSViv ((IV)val) : newSVuv (val);
191	}	319	}
192		320
193	static SV *	321	static SV *
194	process_integer32_sv (void)	322	decode_data (void)
195	{	323	{
196	return newSViv ((I32)process_integer32 ());	324	U32 len = get_length ();
197	}
198
199	static SV *
200	process_unsigned32_sv (void)
201	{
202	return newSVuv ((U32)process_integer32 ());
203	}
204
205	#if IVSIZE >= 8
206
207	static U64TYPE
208	process_integer64 (void)
209	{
210	U32 length = process_length ();
211
212	if (length <= 0)
213	{
214	error ("INTEGER64 length equal to zero");
215	return 0;
216	}
217
218	U8 *data = getn (length, 0);	325	U8 *data = get_n (len);
219
220	if (!data)
221	return 0;
222
223	if (length > 9 \|\| (length > 8 && data [0]))
224	{
225	error ("INTEGER64 length too long");
226	return 0;
227	}
228
229	U64TYPE res = data [0] & 0x80 ? 0xffffffffffffffff : 0;
230
231	while (length--)
232	res = (res << 8) \| *data++;
233
234	return res;
235	}
236
237	static SV *
238	process_integer64_sv (void)
239	{
240	return newSViv ((I64TYPE)process_integer64 ());
241	}
242
243	static SV *
244	process_unsigned64_sv (void)
245	{
246	return newSVuv ((U64TYPE)process_integer64 ());
247	}
248
249	#endif
250
251	static SV *
252	process_octet_string_sv (void)
253	{
254	U32 length = process_length ();
255
256	U8 *data = getn (length, 0);
257	if (!data)
258	{
259	error ("OCTET STRING too long");
260	return &PL_sv_undef;
261	}
262
263	return newSVpvn (data, length);	326	return newSVpvn ((char *)data, len);
264	}	327	}
265		328
		329	// gelper for decode_object_identifier
266	static char *	330	static char *
267	write_uv (char *buf, U32 u)	331	write_uv (char *buf, U32 u)
268	{	332	{
269	// the one-digit case is absolutely predominant, so this pays off (hopefully)	333	// the one-digit case is absolutely predominant, so this pays off (hopefully)
270	if (u < 10)	334	if (expect_true (u < 10))
271	*buf++ = u + '0';	335	*buf++ = u + '0';
272	else	336	else
273	{	337	{
274	char *beg = buf;	338	char *beg = buf;
275		339
…		…
291		355
292	return buf;	356	return buf;
293	}	357	}
294		358
295	static SV *	359	static SV *
296	process_object_identifier_sv (void)	360	decode_oid (int relative)
297	{	361	{
298	U32 length = process_length ();	362	U32 len = get_length ();
299		363
300	if (length <= 0)	364	if (len <= 0)
301	{	365	{
302	error ("OBJECT IDENTIFIER length equal to zero");	366	error ("OBJECT IDENTIFIER length equal to zero");
303	return &PL_sv_undef;	367	return &PL_sv_undef;
304	}	368	}
305		369
306	U8 *end = cur + length;	370	U8 *end = cur + len;
307	U32 w = getb ();	371	U32 w = get_w ();
308		372
309	static char oid[MAX_OID_STRLEN]; // must be static	373	static char oid[MAX_OID_STRLEN]; // must be static
310	char *app = oid;	374	char *app = oid;
311		375
		376	if (relative)
		377	app = write_uv (app, w);
		378	else
		379	{
312	app = write_uv (app, (U8)w / 40);	380	app = write_uv (app, (U8)w / 40);
313	*app++ = '.';	381	*app++ = '.';
314	app = write_uv (app, (U8)w % 40);	382	app = write_uv (app, (U8)w % 40);
		383	}
315		384
316	// we assume an oid component is never > 64 bytes	385	// we assume an oid component is never > 64 bytes
317	while (cur < end && oid + sizeof (oid) - app > 64)	386	while (cur < end && oid + sizeof (oid) - app > 64)
318	{	387	{
319	w = getb ();	388	w = get_w ();
320	*app++ = '.';	389	*app++ = '.';
321	app = write_uv (app, w);	390	app = write_uv (app, w);
322	}	391	}
323		392
324	return newSVpvn (oid, app - oid);	393	return newSVpvn (oid, app - oid);
325	}	394	}
326		395
		396	// TODO: this is unacceptably slow
327	static SV *	397	static SV *
328	ber_decode ()	398	decode_ucs (int chrsize)
329	{	399	{
		400	SV *res = NEWSV (0, 0);
		401
		402	U32 len = get_length ();
		403
		404	if (len & (chrsize - 1))
		405	croak ("BER_TYPE_UCS has an invalid number of octets (%d)", len);
		406
		407	while (len)
		408	{
		409	U8 b1 = get_u8 ();
		410	U8 b2 = get_u8 ();
		411	U32 chr = (b1 << 8) \| b2;
		412
		413	if (chrsize == 4)
		414	{
		415	U8 b3 = get_u8 ();
		416	U8 b4 = get_u8 ();
		417	chr = (chr << 16) \| (b3 << 8) \| b4;
		418	}
		419
		420	U8 uchr [UTF8_MAXBYTES];
		421	int uclen = uvuni_to_utf8 (uchr, chr) - uchr;
		422
		423	sv_catpvn (res, (const char *)uchr, uclen);
		424	len -= chrsize;
		425	}
		426
		427	SvUTF8_on (res);
		428
		429	return res;
		430	}
		431
		432	static SV *
		433	decode_ber ()
		434	{
330	int identifier = get8 ();	435	int identifier = get_u8 ();
331		436
332	SV *res;	437	SV *res;
333		438
334	int constructed = identifier & ASN_CONSTRUCTED;	439	int constructed = identifier & ASN_CONSTRUCTED;
335	int klass = identifier & ASN_CLASS_MASK;	440	int klass = (identifier & ASN_CLASS_MASK) >> ASN_CLASS_SHIFT;
336	int tag = identifier & ASN_TAG_MASK;	441	int tag = identifier & ASN_TAG_MASK;
337		442
338	if (tag == ASN_TAG_BER)	443	if (tag == ASN_TAG_BER)
339	tag = getb ();	444	tag = get_w ();
340		445
341	if (tag == ASN_TAG_BER)	446	if (tag == ASN_TAG_BER)
342	tag = getb ();	447	tag = get_w ();
343		448
344	if (constructed)	449	if (constructed)
345	{	450	{
346	U32 len = process_length ();	451	U32 len = get_length ();
347	U32 seqend = (cur - buf) + len;	452	U32 seqend = (cur - buf) + len;
348	AV av = (AV )sv_2mortal ((SV *)newAV ());	453	AV av = (AV )sv_2mortal ((SV *)newAV ());
349		454
350	while (cur < buf + seqend)	455	while (cur < buf + seqend)
351	av_push (av, ber_decode ());	456	av_push (av, decode_ber ());
352		457
353	if (cur > buf + seqend)	458	if (cur > buf + seqend)
354	croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend);	459	croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend);
355		460
356	res = newRV_inc ((SV *)av);	461	res = newRV_inc ((SV *)av);
357	}	462	}
358	else	463	else
359	switch (identifier)	464	switch (profile_lookup (cur_profile, klass, tag))
360	{	465	{
361	case ASN_NULL:	466	case BER_TYPE_NULL:
362	res = &PL_sv_undef;	467	res = &PL_sv_undef;
363	break;	468	break;
364		469
365	case ASN_OBJECT_IDENTIFIER:	470	case BER_TYPE_BOOL:
366	res = process_object_identifier_sv ();	471	{
367	break;	472	U32 len = get_length ();
368		473
369	case ASN_INTEGER32:	474	if (len != 1)
370	res = process_integer32_sv ();	475	croak ("BER_TYPE_BOOLEAN type with invalid length %d encountered", len);
371	break;
372		476
373	case ASN_APPLICATION \| ASN_UNSIGNED32:	477	res = newSVcacheint (get_u8 () ? 0 : 1);
374	case ASN_APPLICATION \| ASN_COUNTER32:	478	}
375	case ASN_APPLICATION \| ASN_TIMETICKS:
376	res = process_unsigned32_sv ();
377	break;	479	break;
378		480
379	#if 0 // handled by default case	481	case BER_TYPE_OID:
380	case ASN_OCTET_STRING:	482	res = decode_oid (0);
381	case ASN_APPLICATION \| ASN_IPADDRESS:
382	case ASN_APPLICATION \| ASN_OPAQUE:
383	res = process_octet_string_sv ();
384	break;	483	break;
385	#endif
386		484
387	case ASN_APPLICATION \| ASN_COUNTER64:	485	case BER_TYPE_RELOID:
388	res = process_integer64_sv ();	486	res = decode_oid (1);
389	break;	487	break;
390		488
		489	case BER_TYPE_INT:
		490	res = decode_int ();
		491	break;
		492
		493	case BER_TYPE_UTF8:
		494	res = decode_data ();
		495	SvUTF8_on (res);
		496	break;
		497
		498	case BER_TYPE_BYTES:
		499	res = decode_data ();
		500	break;
		501
		502	case BER_TYPE_IPADDRESS:
		503	{
		504	U32 len = get_length ();
		505
		506	if (len != 4)
		507	croak ("BER_TYPE_IPADDRESS type with invalid length %d encountered", len);
		508
		509	U8 c1 = get_u8 ();
		510	U8 c2 = get_u8 ();
		511	U8 c3 = get_u8 ();
		512	U8 c4 = get_u8 ();
		513
		514	res = newSVpvf ("%d.%d.%d.%d", c1, c2, c3, c4);
		515	}
		516	break;
		517
		518	case BER_TYPE_UCS2:
		519	res = decode_ucs (2);
		520	break;
		521
		522	case BER_TYPE_UCS4:
		523	res = decode_ucs (4);
		524	break;
		525
		526	case BER_TYPE_REAL:
		527	case BER_TYPE_CROAK:
391	default:	528	default:
392	res = process_octet_string_sv ();	529	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
393	break;
394	}	530	}
395		531
396	AV *av = newAV ();	532	AV *av = newAV ();
397	av_fill (av, BER_ARRAYSIZE - 1);	533	av_fill (av, BER_ARRAYSIZE - 1);
398	AvARRAY (av)[BER_CLASS ] = newSVcacheint (klass >> ASN_CLASS_SHIFT);	534	AvARRAY (av)[BER_CLASS ] = newSVcacheint (klass);
399	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);	535	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);
400	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (constructed ? 1 : 0);	536	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (constructed ? 1 : 0);
401	AvARRAY (av)[BER_DATA ] = res;	537	AvARRAY (av)[BER_DATA ] = res;
402		538
403	return newRV_noinc ((SV *)av);	539	return newRV_noinc ((SV *)av);
404	}	540	}
405		541
		542	/////////////////////////////////////////////////////////////////////////////
		543	// encoder
		544
		545	/* adds two STRLENs together, slow, and with paranoia */
		546	static STRLEN
		547	strlen_sum (STRLEN l1, STRLEN l2)
		548	{
		549	size_t sum = l1 + l2;
		550
		551	if (sum < (size_t)l2 \|\| sum != (size_t)(STRLEN)sum)
		552	croak ("JSON::XS: string size overflow");
		553
		554	return sum;
		555	}
		556
		557	static void
		558	set_buf (SV *sv)
		559	{
		560	STRLEN len;
		561	buf_sv = sv;
		562	buf = SvPVbyte (buf_sv, len);
		563	cur = buf;
		564	end = buf + len;
		565	}
		566
		567	/* similar to SvGROW, but somewhat safer and guarantees exponential realloc strategy */
		568	static char *
		569	my_sv_grow (SV *sv, size_t len1, size_t len2)
		570	{
		571	len1 = strlen_sum (len1, len2);
		572	len1 = strlen_sum (len1, len1 >> 1);
		573
		574	if (len1 > 4096 - 24)
		575	len1 = (len1 \| 4095) - 24;
		576
		577	return SvGROW (sv, len1);
		578	}
		579
		580	static void
		581	need (STRLEN len)
		582	{
		583	if (expect_false ((uintptr_t)(end - cur) < len))
		584	{
		585	STRLEN pos = cur - buf;
		586	buf = my_sv_grow (buf_sv, pos, len);
		587	cur = buf + pos;
		588	end = buf + SvLEN (buf_sv) - 1;
		589	}
		590	}
		591
		592	static void
		593	put_u8 (int val)
		594	{
		595	need (1);
		596	*cur++ = val;
		597	}
		598
		599	static void
		600	put_w_nocheck (U32 val)
		601	{
		602	cur = (val >> 7 4) \| 0x80; cur += val >= (1 << (7 * 4));
		603	cur = (val >> 7 3) \| 0x80; cur += val >= (1 << (7 * 3));
		604	cur = (val >> 7 2) \| 0x80; cur += val >= (1 << (7 * 2));
		605	cur = (val >> 7 1) \| 0x80; cur += val >= (1 << (7 * 1));
		606	*cur = val & 0x7f; cur += 1;
		607	}
		608
		609	static void
		610	put_w (U32 val)
		611	{
		612	need (5); // we only handle up to 5 bytes
		613
		614	put_w_nocheck (val);
		615	}
		616
		617	static U8 *
		618	put_length_at (U32 val, U8 *cur)
		619	{
		620	if (val < 0x7fU)
		621	*cur++ = val;
		622	else
		623	{
		624	U8 *lenb = cur++;
		625
		626	cur = val >> 24; cur += cur > 0;
		627	cur = val >> 16; cur += cur > 0;
		628	cur = val >> 8; cur += cur > 0;
		629	*cur = val ; cur += 1;
		630
		631	*lenb = 0x80 + cur - lenb - 1;
		632	}
		633
		634	return cur;
		635	}
		636
		637	static void
		638	put_length (U32 val)
		639	{
		640	need (5 + val);
		641	cur = put_length_at (val, cur);
		642	}
		643
		644	// return how many bytes the encoded length requires
		645	static int length_length (U32 val)
		646	{
		647	return val < 0x7fU
		648	? 1
		649	: 2 + (val > 0xffU) + (val > 0xffffU) + (val > 0xffffffU);
		650	}
		651
		652	static void
		653	encode_data (const char *ptr, STRLEN len)
		654	{
		655	put_length (len);
		656	memcpy (cur, ptr, len);
		657	cur += len;
		658	}
		659
		660	static void
		661	encode_uv (UV uv)
		662	{
		663	}
		664
		665	static void
		666	encode_int (SV *sv)
		667	{
		668	need (8 + 1 + 1); // 64 bit + length + extra 0
		669
		670	if (expect_false (!SvIOK (sv)))
		671	sv_2iv_flags (sv, 0);
		672
		673	U8 *lenb = cur++;
		674
		675	if (SvIOK_notUV (sv))
		676	{
		677	IV iv = SvIVX (sv);
		678
		679	if (expect_false (iv < 0))
		680	{
		681	// get two's complement bit pattern - works even on hypothetical non-2c machines
		682	UV uv = iv;
		683
		684	#if UVSIZE > 4
		685	*cur = uv >> 56; cur += !!(~uv & 0xff80000000000000U);
		686	*cur = uv >> 48; cur += !!(~uv & 0xffff800000000000U);
		687	*cur = uv >> 40; cur += !!(~uv & 0xffffff8000000000U);
		688	*cur = uv >> 32; cur += !!(~uv & 0xffffffff80000000U);
		689	#endif
		690	*cur = uv >> 24; cur += !!(~uv & 0xffffffffff800000U);
		691	*cur = uv >> 16; cur += !!(~uv & 0xffffffffffff8000U);
		692	*cur = uv >> 8; cur += !!(~uv & 0xffffffffffffff80U);
		693	*cur = uv ; cur += 1;
		694
		695	*lenb = cur - lenb - 1;
		696
		697	return;
		698	}
		699	}
		700
		701	UV uv = SvUV (sv);
		702
		703	// prepend an extra 0 if the high bit is 1
		704	cur = 0; cur += !!(uv & ((UV)1 << (UVSIZE 8 - 1)));
		705
		706	#if UVSIZE > 4
		707	*cur = uv >> 56; cur += !!(uv & 0xff80000000000000U);
		708	*cur = uv >> 48; cur += !!(uv & 0xffff800000000000U);
		709	*cur = uv >> 40; cur += !!(uv & 0xffffff8000000000U);
		710	*cur = uv >> 32; cur += !!(uv & 0xffffffff80000000U);
		711	#endif
		712	*cur = uv >> 24; cur += !!(uv & 0xffffffffff800000U);
		713	*cur = uv >> 16; cur += !!(uv & 0xffffffffffff8000U);
		714	*cur = uv >> 8; cur += !!(uv & 0xffffffffffffff80U);
		715	*cur = uv ; cur += 1;
		716
		717	*lenb = cur - lenb - 1;
		718	}
		719
		720	// we don't know the length yet, so we optimistically
		721	// assume the length will need one octet later. if that
		722	// turns out to be wrong, we memove as needed.
		723	// mark the beginning
		724	static STRLEN
		725	len_fixup_mark ()
		726	{
		727	return cur++ - buf;
		728	}
		729
		730	// patch up the length
		731	static void
		732	len_fixup (STRLEN mark)
		733	{
		734	STRLEN reallen = (cur - buf) - mark - 1;
		735	int lenlen = length_length (reallen);
		736
		737	if (expect_false (lenlen > 1))
		738	{
		739	// bad luck, we have to shift the bytes to make room for the length
		740	need (5);
		741	memmove (buf + mark + lenlen, buf + mark + 1, reallen);
		742	cur += lenlen - 1;
		743	}
		744
		745	put_length_at (reallen, buf + mark);
		746	}
		747
		748	static char *
		749	read_uv (char str, UV uv)
		750	{
		751	UV r = 0;
		752
		753	while (*str >= '0')
		754	r = r * 10 + *str++ - '0';
		755
		756	*uv = r;
		757
		758	str += !!*str; // advance over any non-zero byte
		759
		760	return str;
		761	}
		762
		763	static void
		764	encode_oid (SV *oid, int relative)
		765	{
		766	STRLEN len;
		767	char *ptr = SvPV (oid, len); // utf8 vs. bytes does not matter
		768
		769	// we need at most as many octets as the string form
		770	need (len + 1);
		771	STRLEN mark = len_fixup_mark ();
		772
		773	UV w1, w2;
		774
		775	if (!relative)
		776	{
		777	ptr = read_uv (ptr, &w1);
		778	ptr = read_uv (ptr, &w2);
		779
		780	put_w_nocheck (w1 * 40 + w2);
		781	}
		782
		783	while (*ptr)
		784	{
		785	ptr = read_uv (ptr, &w1);
		786	put_w_nocheck (w1);
		787	}
		788
		789	len_fixup (mark);
		790	}
		791
		792	// check whether an SV is a BER tuple and returns its AV *
		793	static AV *
		794	ber_tuple (SV *tuple)
		795	{
		796	SV *rv;
		797
		798	if (expect_false (!SvROK (tuple) \|\| SvTYPE ((rv = SvRV (tuple))) != SVt_PVAV))
		799	croak ("BER tuple must be array-reference");
		800
		801	if (expect_false (SvRMAGICAL (rv)))
		802	croak ("BER tuple must not be tied");
		803
		804	if (expect_false (AvFILL ((AV *)rv) != BER_ARRAYSIZE - 1))
		805	croak ("BER tuple must contain exactly %d elements, not %d", BER_ARRAYSIZE, AvFILL ((AV *)rv) + 1);
		806
		807	return (AV *)rv;
		808	}
		809
		810	static void
		811	encode_ucs (SV *data, int chrsize)
		812	{
		813	STRLEN uchars = sv_len_utf8 (data);
		814	STRLEN len;;
		815	char *ptr = SvPVutf8 (data, len);
		816
		817	put_length (uchars * chrsize);
		818
		819	while (uchars--)
		820	{
		821	STRLEN uclen;
		822	UV uchr = utf8_to_uvchr_buf (ptr, ptr + len, &uclen);
		823
		824	ptr += uclen;
		825	len -= uclen;
		826
		827	if (chrsize == 4)
		828	{
		829	*cur++ = uchr >> 24;
		830	*cur++ = uchr >> 16;
		831	}
		832
		833	*cur++ = uchr >> 8;
		834	*cur++ = uchr;
		835	}
		836	}
		837	static void
		838	encode_ber (SV *tuple)
		839	{
		840	AV *av = ber_tuple (tuple);
		841
		842	int klass = SvIV (AvARRAY (av)[BER_CLASS]);
		843	int tag = SvIV (AvARRAY (av)[BER_TAG]);
		844	int constructed = SvIV (AvARRAY (av)[BER_CONSTRUCTED]) ? ASN_CONSTRUCTED : 0;
		845	SV *data = AvARRAY (av)[BER_DATA];
		846
		847	int identifier = (klass << ASN_CLASS_SHIFT) \| constructed;
		848
		849	if (expect_false (tag >= ASN_TAG_BER))
		850	{
		851	put_u8 (identifier \| ASN_TAG_BER);
		852	put_w (tag);
		853	}
		854	else
		855	put_u8 (identifier \| tag);
		856
		857	if (constructed)
		858	{
		859	// we optimistically assume that only one length byte is needed
		860	// and adjust later
		861	need (1);
		862	STRLEN mark = len_fixup_mark ();
		863
		864	if (expect_false (!SvROK (data) \|\| SvTYPE (SvRV (data)) != SVt_PVAV))
		865	croak ("BER constructed data must be array-reference");
		866
		867	AV av = (AV )SvRV (data);
		868	int fill = AvFILL (av);
		869
		870	if (expect_false (SvRMAGICAL (av)))
		871	croak ("BER constructed data must not be tied");
		872
		873	for (int i = 0; i <= fill; ++i)
		874	encode_ber (AvARRAY (av)[i]);
		875
		876	len_fixup (mark);
		877	}
		878	else
		879	switch (profile_lookup (cur_profile, klass, tag))
		880	{
		881	case BER_TYPE_NULL:
		882	put_length (0);
		883	break;
		884
		885	case BER_TYPE_BOOL:
		886	put_length (1);
		887	*cur++ = SvTRUE (data) ? 0xff : 0x00;
		888	break;
		889
		890	case BER_TYPE_OID:
		891	encode_oid (data, 0);
		892	break;
		893
		894	case BER_TYPE_RELOID:
		895	encode_oid (data, 1);
		896	break;
		897
		898	case BER_TYPE_INT:
		899	encode_int (data);
		900	break;
		901
		902	case BER_TYPE_BYTES:
		903	{
		904	STRLEN len;
		905	const char *ptr = SvPVbyte (data, len);
		906	encode_data (ptr, len);
		907	}
		908	break;
		909
		910	case BER_TYPE_UTF8:
		911	{
		912	STRLEN len;
		913	const char *ptr = SvPVutf8 (data, len);
		914	encode_data (ptr, len);
		915	}
		916	break;
		917
		918	case BER_TYPE_IPADDRESS:
		919	{
		920	U8 ip[4];
		921	sscanf (SvPV_nolen (data), "%hhu.%hhu.%hhu.%hhu", ip + 0, ip + 1, ip + 2, ip + 3);
		922	encode_data ((const char *)ip, sizeof (ip));
		923	}
		924	break;
		925
		926	case BER_TYPE_UCS2:
		927	encode_ucs (data, 2);
		928	break;
		929
		930	case BER_TYPE_UCS4:
		931	encode_ucs (data, 4);
		932	break;
		933
		934	case BER_TYPE_REAL:
		935	case BER_TYPE_CROAK:
		936	default:
		937	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
		938	}
		939
		940	}
		941
		942	/////////////////////////////////////////////////////////////////////////////
		943
406	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS	944	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS
407		945
408	PROTOTYPES: ENABLE	946	PROTOTYPES: ENABLE
409		947
410	BOOT:	948	BOOT:
411	{	949	{
412	HV *stash = gv_stashpv ("Convert::BER::XS", 1);	950	HV *stash = gv_stashpv ("Convert::BER::XS", 1);
		951
		952	profile_stash = gv_stashpv ("Convert::BER::XS::Profile", 1);
413		953
414	static const struct {	954	static const struct {
415	const char *name;	955	const char *name;
416	IV iv;	956	IV iv;
417	} *civ, const_iv[] = {	957	} *civ, const_iv[] = {
418	{ "ASN_BOOLEAN", ASN_BOOLEAN },	958	#define const_iv(name) { # name, name },
419	{ "ASN_INTEGER32", ASN_INTEGER32 },	959	const_iv (ASN_BOOLEAN)
420	{ "ASN_BIT_STRING", ASN_BIT_STRING },	960	const_iv (ASN_INTEGER32)
421	{ "ASN_OCTET_STRING", ASN_OCTET_STRING },	961	const_iv (ASN_BIT_STRING)
422	{ "ASN_NULL", ASN_NULL },	962	const_iv (ASN_OCTET_STRING)
423	{ "ASN_OBJECT_IDENTIFIER", ASN_OBJECT_IDENTIFIER },	963	const_iv (ASN_NULL)
424	{ "ASN_TAG_BER", ASN_TAG_BER },	964	const_iv (ASN_OBJECT_IDENTIFIER)
425	{ "ASN_TAG_MASK", ASN_TAG_MASK },	965	const_iv (ASN_OBJECT_DESCRIPTOR)
426	{ "ASN_CONSTRUCTED", ASN_CONSTRUCTED },	966	const_iv (ASN_OID)
427	{ "ASN_UNIVERSAL", ASN_UNIVERSAL >> ASN_CLASS_SHIFT },	967	const_iv (ASN_EXTERNAL)
428	{ "ASN_APPLICATION", ASN_APPLICATION >> ASN_CLASS_SHIFT },	968	const_iv (ASN_REAL)
429	{ "ASN_CONTEXT", ASN_CONTEXT >> ASN_CLASS_SHIFT },	969	const_iv (ASN_SEQUENCE)
430	{ "ASN_PRIVATE", ASN_PRIVATE >> ASN_CLASS_SHIFT },	970	const_iv (ASN_ENUMERATED)
431	{ "ASN_CLASS_MASK", ASN_CLASS_MASK },	971	const_iv (ASN_EMBEDDED_PDV)
432	{ "ASN_CLASS_SHIFT", ASN_CLASS_SHIFT },	972	const_iv (ASN_UTF8_STRING)
433	{ "ASN_SEQUENCE", ASN_SEQUENCE },	973	const_iv (ASN_RELATIVE_OID)
434	{ "ASN_IPADDRESS", ASN_IPADDRESS },	974	const_iv (ASN_SET)
435	{ "ASN_COUNTER32", ASN_COUNTER32 },	975	const_iv (ASN_NUMERIC_STRING)
436	{ "ASN_UNSIGNED32", ASN_UNSIGNED32 },	976	const_iv (ASN_PRINTABLE_STRING)
437	{ "ASN_TIMETICKS", ASN_TIMETICKS },	977	const_iv (ASN_TELETEX_STRING)
438	{ "ASN_OPAQUE", ASN_OPAQUE },	978	const_iv (ASN_T61_STRING)
439	{ "ASN_COUNTER64", ASN_COUNTER64 },	979	const_iv (ASN_VIDEOTEX_STRING)
		980	const_iv (ASN_IA5_STRING)
		981	const_iv (ASN_ASCII_STRING)
		982	const_iv (ASN_UTC_TIME)
		983	const_iv (ASN_GENERALIZED_TIME)
		984	const_iv (ASN_GRAPHIC_STRING)
		985	const_iv (ASN_VISIBLE_STRING)
		986	const_iv (ASN_ISO646_STRING)
		987	const_iv (ASN_GENERAL_STRING)
		988	const_iv (ASN_UNIVERSAL_STRING)
		989	const_iv (ASN_CHARACTER_STRING)
		990	const_iv (ASN_BMP_STRING)
440		991
441	{ "BER_CLASS" , BER_CLASS },	992	const_iv (ASN_UNIVERSAL)
442	{ "BER_TAG" , BER_TAG },	993	const_iv (ASN_APPLICATION)
443	{ "BER_CONSTRUCTED", BER_CONSTRUCTED },	994	const_iv (ASN_CONTEXT)
444	{ "BER_DATA" , BER_DATA },	995	const_iv (ASN_PRIVATE)
		996
		997	const_iv (BER_CLASS)
		998	const_iv (BER_TAG)
		999	const_iv (BER_CONSTRUCTED)
		1000	const_iv (BER_DATA)
		1001
		1002	const_iv (BER_TYPE_BYTES)
		1003	const_iv (BER_TYPE_UTF8)
		1004	const_iv (BER_TYPE_UCS2)
		1005	const_iv (BER_TYPE_UCS4)
		1006	const_iv (BER_TYPE_INT)
		1007	const_iv (BER_TYPE_OID)
		1008	const_iv (BER_TYPE_RELOID)
		1009	const_iv (BER_TYPE_NULL)
		1010	const_iv (BER_TYPE_BOOL)
		1011	const_iv (BER_TYPE_REAL)
		1012	const_iv (BER_TYPE_IPADDRESS)
		1013	const_iv (BER_TYPE_CROAK)
		1014
		1015	const_iv (SNMP_IPADDRESS)
		1016	const_iv (SNMP_COUNTER32)
		1017	const_iv (SNMP_UNSIGNED32)
		1018	const_iv (SNMP_TIMETICKS)
		1019	const_iv (SNMP_OPAQUE)
		1020	const_iv (SNMP_COUNTER64)
445	};	1021	};
446		1022
447	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1023	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
448	newCONSTSUB (stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1024	newCONSTSUB (stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
449	}	1025	}
450		1026
451	SV *	1027	SV *
452	ber_decode (SV *ber)	1028	ber_decode (SV ber, SV profile = &PL_sv_undef)
453	CODE:	1029	CODE:
454	{	1030	{
		1031	cur_profile = SvPROFILE (profile);
		1032	STRLEN len;
455	buf = SvPVbyte (ber, len);	1033	buf = SvPVbyte (ber, len);
456	cur = buf;	1034	cur = buf;
457	rem = len;	1035	end = buf + len;
458		1036
459	RETVAL = ber_decode ();	1037	RETVAL = decode_ber ();
460	}	1038	}
461	OUTPUT: RETVAL	1039	OUTPUT: RETVAL
462		1040
463	void	1041	void
464	ber_is (SV tuple, SV klass = &PL_sv_undef, SV tag = &PL_sv_undef, SV constructed = &PL_sv_undef, SV *data = &PL_sv_undef)	1042	ber_is (SV tuple, SV klass = &PL_sv_undef, SV tag = &PL_sv_undef, SV constructed = &PL_sv_undef, SV *data = &PL_sv_undef)
465	PROTOTYPE: $;$$$
466	PPCODE:	1043	PPCODE:
467	{	1044	{
468	if (!SvOK (tuple))	1045	if (!SvOK (tuple))
469	XSRETURN_NO;	1046	XSRETURN_NO;
470		1047
471	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1048	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)
472	croak ("ber_seq: tuple must be ber tuple (array-ref)");	1049	croak ("ber_is: tuple must be BER tuple (array-ref)");
473		1050
474	AV av = (AV )SvRV (tuple);	1051	AV av = (AV )SvRV (tuple);
475		1052
476	XPUSHs (	1053	XPUSHs (
477	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS ]) == SvIV (klass))	1054	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS ]) == SvIV (klass))
478	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))	1055	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))
479	&& (!SvOK (constructed) \|\| !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) == !SvIV (constructed))	1056	&& (!SvOK (constructed) \|\| !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) == !SvIV (constructed))
480	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))	1057	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))
481	? &PL_sv_yes : &PL_sv_no);	1058	? &PL_sv_yes : &PL_sv_undef);
482	}	1059	}
483		1060
484	void	1061	void
485	ber_is_seq (SV *tuple)	1062	ber_is_seq (SV *tuple)
486	PROTOTYPE: $
487	PPCODE:	1063	PPCODE:
488	{	1064	{
489	if (!SvOK (tuple))	1065	if (!SvOK (tuple))
490	XSRETURN_UNDEF;	1066	XSRETURN_UNDEF;
491		1067
492	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1068	AV *av = ber_tuple (tuple);
493	croak ("ber_seq: tuple must be ber tuple (array-ref)");
494
495	AV av = (AV )SvRV (tuple);
496		1069
497	XPUSHs (	1070	XPUSHs (
498	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1071	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL
499	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE	1072	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE
500	&& SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1073	&& SvIV (AvARRAY (av)[BER_CONSTRUCTED])
501	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);	1074	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);
502	}	1075	}
503		1076
504	void	1077	void
505	ber_is_i32 (SV *tuple, IV value)	1078	ber_is_i32 (SV tuple, SV value = &PL_sv_undef)
506	PROTOTYPE: $$
507	PPCODE:	1079	PPCODE:
508	{	1080	{
509	if (!SvOK (tuple))	1081	if (!SvOK (tuple))
510	XSRETURN_NO;	1082	XSRETURN_NO;
511		1083
512	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1084	AV *av = ber_tuple (tuple);
513	croak ("ber_seq: tuple must be ber tuple (array-ref)");
514		1085
515	AV av = (AV )SvRV (tuple);	1086	IV data = SvIV (AvARRAY (av)[BER_DATA]);
516		1087
517	XPUSHs (	1088	XPUSHs (
518	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1089	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL
519	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER32	1090	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER32
520	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1091	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])
521	&& SvIV (AvARRAY (av)[BER_DATA ]) == value	1092	&& (!SvOK (value) \|\| data == SvIV (value))
522	? &PL_sv_yes : &PL_sv_no);	1093	? sv_2mortal (data ? newSViv (data) : newSVpv ("0 but true", 0))
		1094	: &PL_sv_undef);
523	}	1095	}
524		1096
525	void	1097	void
526	ber_is_oid (SV tuple, SV oid)	1098	ber_is_oid (SV tuple, SV oid = &PL_sv_undef)
527	PROTOTYPE: $$
528	PPCODE:	1099	PPCODE:
529	{	1100	{
530	if (!SvOK (tuple))	1101	if (!SvOK (tuple))
531	XSRETURN_NO;	1102	XSRETURN_NO;
532		1103
533	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1104	AV *av = ber_tuple (tuple);
534	croak ("ber_seq: tuple must be ber tuple (array-ref)");
535
536	AV av = (AV )SvRV (tuple);
537		1105
538	XPUSHs (	1106	XPUSHs (
539	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1107	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL
540	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER	1108	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER
541	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1109	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])
542	&& sv_eq (AvARRAY (av)[BER_DATA], oid)	1110	&& (!SvOK (oid) \|\| sv_eq (AvARRAY (av)[BER_DATA], oid))
543	? &PL_sv_yes : &PL_sv_no);	1111	? newSVsv (AvARRAY (av)[BER_DATA]) : &PL_sv_undef);
544	}	1112	}
545		1113
		1114	#############################################################################
		1115
		1116	void
		1117	ber_encode (SV tuple, SV profile = &PL_sv_undef)
		1118	PPCODE:
		1119	{
		1120	cur_profile = SvPROFILE (profile);
		1121	buf_sv = sv_2mortal (NEWSV (0, 256));
		1122	SvPOK_only (buf_sv);
		1123	set_buf (buf_sv);
		1124
		1125	encode_ber (tuple);
		1126
		1127	SvCUR_set (buf_sv, cur - buf);
		1128	XPUSHs (buf_sv);
		1129	}
		1130
		1131	SV *
		1132	ber_i32 (IV iv)
		1133	CODE:
		1134	{
		1135	AV *av = newAV ();
		1136	av_fill (av, BER_ARRAYSIZE - 1);
		1137	AvARRAY (av)[BER_CLASS ] = newSVcacheint (ASN_UNIVERSAL);
		1138	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_INTEGER32);
		1139	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (0);
		1140	AvARRAY (av)[BER_DATA ] = newSViv (iv);
		1141	RETVAL = newRV_noinc ((SV *)av);
		1142	}
		1143	OUTPUT: RETVAL
		1144
		1145	# TODO: not arrayref, but elements?
		1146	SV *
		1147	ber_seq (SV *arrayref)
		1148	CODE:
		1149	{
		1150	AV *av = newAV ();
		1151	av_fill (av, BER_ARRAYSIZE - 1);
		1152	AvARRAY (av)[BER_CLASS ] = newSVcacheint (ASN_UNIVERSAL);
		1153	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_SEQUENCE);
		1154	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (1);
		1155	AvARRAY (av)[BER_DATA ] = newSVsv (arrayref);
		1156	RETVAL = newRV_noinc ((SV *)av);
		1157	}
		1158	OUTPUT: RETVAL
		1159
		1160	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS::Profile
		1161
		1162	SV *
		1163	new (SV *klass)
		1164	CODE:
		1165	RETVAL = profile_new ();
		1166	OUTPUT: RETVAL
		1167
		1168	void
		1169	set (SV *profile, int klass, int tag, int type)
		1170	CODE:
		1171	profile_set (SvPROFILE (profile), klass, tag, type);
		1172
		1173	IV
		1174	get (SV *profile, int klass, int tag)
		1175	CODE:
		1176	RETVAL = profile_lookup (SvPROFILE (profile), klass, tag);
		1177	OUTPUT: RETVAL
		1178
		1179	void
		1180	_set_default (SV *profile)
		1181	CODE:
		1182	default_profile = SvPROFILE (profile);
		1183
		1184

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Comparing Convert-BER-XS/XS.xs (file contents): Revision 1.1 by root, Fri Apr 19 16:19:36 2019 UTC vs. Revision 1.9 by root, Sat Apr 20 02:12:27 2019 UTC

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Comparing Convert-BER-XS/XS.xs (file contents):
Revision 1.1 by root, Fri Apr 19 16:19:36 2019 UTC vs.
Revision 1.9 by root, Sat Apr 20 02:12:27 2019 UTC