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

Comparing Convert-BER-XS/XS.xs (file contents):
Revision 1.2 by root, Fri Apr 19 16:49:02 2019 UTC vs.
Revision 1.8 by root, Sat Apr 20 01:50:13 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,
15	ASN_REAL = 0x09, //X	18	ASN_REAL = 0x09,
16	ASN_ENUMERATED = 0x0a, //X	19	ASN_ENUMERATED = 0x0a,
		20	ASN_EMBEDDED_PDV = 0x0b,
		21	ASN_UTF8_STRING = 0x0c,
		22	ASN_RELATIVE_OID = 0x0d,
17	ASN_SEQUENCE = 0x10,	23	ASN_SEQUENCE = 0x10,
18	ASN_SET = 0x11, //X	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,
19	ASN_UTC_TIME = 0x17, //X	32	ASN_UTC_TIME = 0x17,
20	ASN_GENERAL_TIME = 0x18, //X	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,
21		41
22	ASN_TAG_BER = 0x1f,	42	ASN_TAG_BER = 0x1f,
23	ASN_TAG_MASK = 0x1f,	43	ASN_TAG_MASK = 0x1f,
24		44
25	// primitive/constructed	45	// primitive/constructed
26	ASN_CONSTRUCTED = 0x20,	46	ASN_CONSTRUCTED = 0x20,
27		47
28	// ASN_CLASS	48	// ASN_CLASS
29	ASN_UNIVERSAL = 0x00,	49	ASN_UNIVERSAL = 0x00,
30	ASN_APPLICATION = 0x40,	50	ASN_APPLICATION = 0x01,
31	ASN_CONTEXT = 0x80,	51	ASN_CONTEXT = 0x02,
32	ASN_PRIVATE = 0xc0,	52	ASN_PRIVATE = 0x03,
33		53
34	ASN_CLASS_MASK = 0xc0,	54	ASN_CLASS_MASK = 0xc0,
35	ASN_CLASS_SHIFT = 6,	55	ASN_CLASS_SHIFT = 6,
36		56
37	// ASN_APPLICATION SNMP	57	// ASN_APPLICATION SNMP
38	ASN_IPADDRESS = 0x00,	58	SNMP_IPADDRESS = 0x00,
39	ASN_COUNTER32 = 0x01,	59	SNMP_COUNTER32 = 0x01,
40	ASN_UNSIGNED32 = 0x02,	60	SNMP_UNSIGNED32 = 0x02,
41	ASN_TIMETICKS = 0x03,	61	SNMP_TIMETICKS = 0x03,
42	ASN_OPAQUE = 0x04,	62	SNMP_OPAQUE = 0x04,
43	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,
44	};	79	};
45		80
46	enum {	81	enum {
47	BER_CLASS = 0,	82	BER_CLASS = 0,
48	BER_TAG = 1,	83	BER_TAG = 1,
…		…
51	BER_ARRAYSIZE	86	BER_ARRAYSIZE
52	};	87	};
53		88
54	#define MAX_OID_STRLEN 4096	89	#define MAX_OID_STRLEN 4096
55		90
56	static U8 buf, cur;	91	typedef void profile_type;
57	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 __GNUC__ >= 3
		98	# define expect(expr,value) __builtin_expect ((expr), (value))
		99	# define INLINE static inline
		100	#else
		101	# define expect(expr,value) (expr)
		102	# define INLINE static
		103	#endif
		104
		105	#define expect_false(expr) expect ((expr) != 0, 0)
		106	#define expect_true(expr) expect ((expr) != 0, 1)
		107
		108	/////////////////////////////////////////////////////////////////////////////
		109
		110	static SV *sviv_cache[32];
58		111
59	// for "small" integers, return a readonly sv, otherwise create a new one	112	// for "small" integers, return a readonly sv, otherwise create a new one
60	static SV *newSVcacheint (int val)	113	static SV *newSVcacheint (int val)
61	{	114	{
62	static SV *cache[32];
63
64	if (val < 0 \|\| val >= sizeof (cache))	115	if (expect_false (val < 0 \|\| val >= sizeof (sviv_cache)))
65	return newSViv (val);	116	return newSViv (val);
66		117
67	if (!cache [val])	118	if (expect_false (!sviv_cache [val]))
68	{	119	{
69	cache [val] = newSVuv (val);	120	sviv_cache [val] = newSVuv (val);
70	SvREADONLY_on (cache [val]);	121	SvREADONLY_on (sviv_cache [val]);
71	}	122	}
72		123
73	return SvREFCNT_inc_NN (cache [val]);	124	return SvREFCNT_inc_NN (sviv_cache [val]);
74	}	125	}
75		126
76	/////////////////////////////////////////////////////////////////////////////	127	/////////////////////////////////////////////////////////////////////////////
77		128
		129	static HV *profile_stash;
		130
		131	static profile_type *
		132	SvPROFILE (SV *profile)
		133	{
		134	if (!SvOK (profile))
		135	return default_profile;
		136
		137	if (!SvROK (profile))
		138	croak ("invalid profile");
		139
		140	profile = SvRV (profile);
		141
		142	if (SvSTASH (profile) != profile_stash)
		143	croak ("invalid profile object");
		144
		145	return (void *)profile;
		146	}
		147
		148	static int
		149	profile_lookup (profile_type *profile, int klass, int tag)
		150	{
		151	SV sv = (SV )profile;
		152	U32 idx = (tag << 2) + klass;
		153
		154	if (expect_false (idx >= SvCUR (sv)))
		155	return BER_TYPE_BYTES;
		156
		157	return SvPVX (sv)[idx];
		158	}
		159
		160	static int
		161	profile_set (profile_type *profile, int klass, int tag, int type)
		162	{
		163	SV sv = (SV )profile;
		164	U32 idx = (tag << 2) + klass;
		165	STRLEN oldlen = SvCUR (sv);
		166	STRLEN newlen = idx + 2;
		167
		168	if (idx >= oldlen)
		169	{
		170	sv_grow (sv, newlen);
		171	memset (SvPVX (sv) + oldlen, BER_TYPE_BYTES, newlen - oldlen);
		172	SvCUR_set (sv, newlen);
		173	}
		174
		175	SvPVX (sv)[idx] = type;
		176	}
		177
		178	static SV *
		179	profile_new ()
		180	{
		181	SV *sv = newSVpvn ("", 0);
		182
		183	static const struct {
		184	int klass;
		185	int tag;
		186	int type;
		187	} *celem, default_map[] = {
		188	{ ASN_UNIVERSAL, ASN_BOOLEAN , BER_TYPE_BOOL },
		189	{ ASN_UNIVERSAL, ASN_INTEGER32 , BER_TYPE_INT },
		190	{ ASN_UNIVERSAL, ASN_NULL , BER_TYPE_NULL },
		191	{ ASN_UNIVERSAL, ASN_OBJECT_IDENTIFIER, BER_TYPE_OID },
		192	{ ASN_UNIVERSAL, ASN_OBJECT_DESCRIPTOR, BER_TYPE_OID },
		193	{ ASN_UNIVERSAL, ASN_RELATIVE_OID , BER_TYPE_RELOID },
		194	{ ASN_UNIVERSAL, ASN_REAL , BER_TYPE_REAL },
		195	{ ASN_UNIVERSAL, ASN_UTF8_STRING , BER_TYPE_UTF8 },
		196	{ ASN_UNIVERSAL, ASN_BMP_STRING , BER_TYPE_UCS2 },
		197	{ ASN_UNIVERSAL, ASN_UNIVERSAL_STRING , BER_TYPE_UCS4 },
		198	};
		199
		200	for (celem = default_map + sizeof (default_map) / sizeof (default_map [0]); celem > default_map; celem--)
		201	profile_set ((void *)sv, celem->klass, celem->tag, celem->type);
		202
		203	return sv_bless (newRV_noinc (sv), profile_stash);
		204	}
		205
		206	/////////////////////////////////////////////////////////////////////////////
		207	// decoder
		208
78	static void	209	static void
79	error (const char *errmsg)	210	error (const char *errmsg)
80	{	211	{
81	croak ("%s at offset 0x%04x", errmsg, cur - buf);	212	croak ("%s at offset 0x%04x", errmsg, cur - buf);
82	}	213	}
83		214
84	static int	215	static void
85	need (int count)	216	want (UV count)
86	{	217	{
87	if (count < 0 \|\| (int)rem < count)	218	if (expect_false ((uintptr_t)(end - cur) < count))
88	{
89	error ("unexpected end of message buffer");	219	error ("unexpected end of message buffer");
90	return 0;
91	}
92
93	return 1;
94	}	220	}
95		221
96	// get_* functions fetch something from the buffer	222	// get_* functions fetch something from the buffer
97	// decode_* functions use get_* fun ctions to decode ber values	223	// decode_* functions use get_* fun ctions to decode ber values
98		224
		225	// get n octets
99	static U8 *	226	static U8 *
100	get_n (int count, const U8 *errres)	227	get_n (UV count)
101	{	228	{
102	if (!need (count))	229	want (count);
103	return (U8 *)errres;
104
105	U8 *res = cur;	230	U8 *res = cur;
106
107	cur += count;	231	cur += count;
108	rem -= count;
109
110	return res;	232	return res;
111	}	233	}
112		234
		235	// get single octet
113	static U8	236	static U8
114	get_u8 (void)	237	get_u8 (void)
115	{	238	{
116	if (rem <= 0)	239	if (cur == end)
117	{
118	error ("unexpected end of message buffer");	240	error ("unexpected end of message buffer");
119	return 0;
120	}
121		241
122	rem--;
123	return *cur++;	242	return *cur++;
124	}	243	}
125		244
		245	// get ber-encoded integer (i.e. pack "w")
126	static U32	246	static U32
127	get_ber (void)	247	get_w (void)
128	{	248	{
129	U32 res = 0;	249	U32 res = 0;
130		250
131	for (;;)	251	for (;;)
132	{	252	{
…		…
166	}	286	}
167		287
168	return res;	288	return res;
169	}	289	}
170		290
171	static U32	291	static SV *
172	get_integer32 (void)	292	decode_int ()
173	{	293	{
174	U32 length = get_length ();	294	int len = get_length ();
175		295
176	if (length <= 0)	296	if (len <= 0)
177	{	297	{
178	error ("INTEGER32 length equal to zero");	298	error ("integer length equal to zero");
179	return 0;	299	return 0;
180	}	300	}
181		301
182	U8 *data = get_n (length, 0);	302	U8 *data = get_n (len);
183		303
184	if (!data)	304	int negative = data [0] & 0x80;
185	return 0;
186		305
187	if (length > 5 \|\| (length > 4 && data [0]))	306	UV val = negative ? -1 : 0; // copy signbit to all bits
188	{
189	error ("INTEGER32 length too long");
190	return 0;
191	}
192		307
193	U32 res = data [0] & 0x80 ? 0xffffffff : 0;	308	do
194
195	while (length--)
196	res = (res << 8) \| *data++;	309	val = (val << 8) \| *data++;
		310	while (--len);
197		311
198	return res;	312	// the cast to IV relies on implementation-defined behaviour (two's complement cast)
		313	// but that's ok, as perl relies on it as well.
		314	return negative ? newSViv ((IV)val) : newSVuv (val);
199	}	315	}
200		316
201	static SV *	317	static SV *
202	decode_integer32 (void)	318	decode_data (void)
203	{	319	{
204	return newSViv ((I32)get_integer32 ());
205	}
206
207	static SV *
208	decode_unsigned32 (void)
209	{
210	return newSVuv ((U32)get_integer32 ());
211	}
212
213	#if IVSIZE >= 8
214
215	static U64TYPE
216	get_integer64 (void)
217	{
218	U32 length = get_length ();	320	U32 len = get_length ();
219
220	if (length <= 0)
221	{
222	error ("INTEGER64 length equal to zero");
223	return 0;
224	}
225
226	U8 *data = get_n (length, 0);	321	U8 *data = get_n (len);
227
228	if (!data)
229	return 0;
230
231	if (length > 9 \|\| (length > 8 && data [0]))
232	{
233	error ("INTEGER64 length too long");
234	return 0;
235	}
236
237	U64TYPE res = data [0] & 0x80 ? 0xffffffffffffffff : 0;
238
239	while (length--)
240	res = (res << 8) \| *data++;
241
242	return res;
243	}
244
245	static SV *
246	decode_integer64 (void)
247	{
248	return newSViv ((I64TYPE)get_integer64 ());
249	}
250
251	static SV *
252	decode_unsigned64 (void)
253	{
254	return newSVuv ((U64TYPE)get_integer64 ());
255	}
256
257	#endif
258
259	static SV *
260	decode_octet_string (void)
261	{
262	U32 length = get_length ();
263
264	U8 *data = get_n (length, 0);
265	if (!data)
266	{
267	error ("OCTET STRING too long");
268	return &PL_sv_undef;
269	}
270
271	return newSVpvn (data, length);	322	return newSVpvn ((char *)data, len);
272	}	323	}
273		324
274	// gelper for decode_object_identifier	325	// gelper for decode_object_identifier
275	static char *	326	static char *
276	write_uv (char *buf, U32 u)	327	write_uv (char *buf, U32 u)
277	{	328	{
278	// the one-digit case is absolutely predominant, so this pays off (hopefully)	329	// the one-digit case is absolutely predominant, so this pays off (hopefully)
279	if (u < 10)	330	if (expect_true (u < 10))
280	*buf++ = u + '0';	331	*buf++ = u + '0';
281	else	332	else
282	{	333	{
283	char *beg = buf;	334	char *beg = buf;
284		335
…		…
300		351
301	return buf;	352	return buf;
302	}	353	}
303		354
304	static SV *	355	static SV *
305	decode_object_identifier (void)	356	decode_oid (int relative)
306	{	357	{
307	U32 length = get_length ();	358	U32 len = get_length ();
308		359
309	if (length <= 0)	360	if (len <= 0)
310	{	361	{
311	error ("OBJECT IDENTIFIER length equal to zero");	362	error ("OBJECT IDENTIFIER length equal to zero");
312	return &PL_sv_undef;	363	return &PL_sv_undef;
313	}	364	}
314		365
315	U8 *end = cur + length;	366	U8 *end = cur + len;
316	U32 w = get_ber ();	367	U32 w = get_w ();
317		368
318	static char oid[MAX_OID_STRLEN]; // must be static	369	static char oid[MAX_OID_STRLEN]; // must be static
319	char *app = oid;	370	char *app = oid;
320		371
		372	if (relative)
		373	app = write_uv (app, w);
		374	else
		375	{
321	app = write_uv (app, (U8)w / 40);	376	app = write_uv (app, (U8)w / 40);
322	*app++ = '.';	377	*app++ = '.';
323	app = write_uv (app, (U8)w % 40);	378	app = write_uv (app, (U8)w % 40);
		379	}
324		380
325	// we assume an oid component is never > 64 bytes	381	// we assume an oid component is never > 64 bytes
326	while (cur < end && oid + sizeof (oid) - app > 64)	382	while (cur < end && oid + sizeof (oid) - app > 64)
327	{	383	{
328	w = get_ber ();	384	w = get_w ();
329	*app++ = '.';	385	*app++ = '.';
330	app = write_uv (app, w);	386	app = write_uv (app, w);
331	}	387	}
332		388
333	return newSVpvn (oid, app - oid);	389	return newSVpvn (oid, app - oid);
334	}	390	}
335		391
		392	// TODO: this is unacceptably slow
		393	static SV *
		394	decode_ucs (int chrsize)
		395	{
		396	SV *res = NEWSV (0, 0);
		397
		398	U32 len = get_length ();
		399
		400	if (len & (chrsize - 1))
		401	croak ("BER_TYPE_UCS has an invalid number of octets (%d)", len);
		402
		403	while (len)
		404	{
		405	U8 b1 = get_u8 ();
		406	U8 b2 = get_u8 ();
		407	U32 chr = (b1 << 8) \| b2;
		408
		409	if (chrsize == 4)
		410	{
		411	U8 b3 = get_u8 ();
		412	U8 b4 = get_u8 ();
		413	chr = (chr << 16) \| (b3 << 8) \| b4;
		414	}
		415
		416	U8 uchr [UTF8_MAXBYTES];
		417	int uclen = uvuni_to_utf8 (uchr, chr) - uchr;
		418
		419	sv_catpvn (res, (const char *)uchr, uclen);
		420	len -= chrsize;
		421	}
		422
		423	SvUTF8_on (res);
		424
		425	return res;
		426	}
		427
336	static SV *	428	static SV *
337	decode_ber ()	429	decode_ber ()
338	{	430	{
339	int identifier = get_u8 ();	431	int identifier = get_u8 ();
340		432
341	SV *res;	433	SV *res;
342		434
343	int constructed = identifier & ASN_CONSTRUCTED;	435	int constructed = identifier & ASN_CONSTRUCTED;
344	int klass = identifier & ASN_CLASS_MASK;	436	int klass = (identifier & ASN_CLASS_MASK) >> ASN_CLASS_SHIFT;
345	int tag = identifier & ASN_TAG_MASK;	437	int tag = identifier & ASN_TAG_MASK;
346		438
347	if (tag == ASN_TAG_BER)	439	if (tag == ASN_TAG_BER)
348	tag = get_ber ();	440	tag = get_w ();
349		441
350	if (tag == ASN_TAG_BER)	442	if (tag == ASN_TAG_BER)
351	tag = get_ber ();	443	tag = get_w ();
352		444
353	if (constructed)	445	if (constructed)
354	{	446	{
355	U32 len = get_length ();	447	U32 len = get_length ();
356	U32 seqend = (cur - buf) + len;	448	U32 seqend = (cur - buf) + len;
…		…
363	croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend);	455	croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend);
364		456
365	res = newRV_inc ((SV *)av);	457	res = newRV_inc ((SV *)av);
366	}	458	}
367	else	459	else
368	switch (identifier)	460	switch (profile_lookup (cur_profile, klass, tag))
369	{	461	{
370	case ASN_NULL:	462	case BER_TYPE_NULL:
371	res = &PL_sv_undef;	463	res = &PL_sv_undef;
372	break;	464	break;
373		465
374	case ASN_OBJECT_IDENTIFIER:	466	case BER_TYPE_BOOL:
		467	{
		468	U32 len = get_length ();
		469
		470	if (len != 1)
		471	croak ("BER_TYPE_BOOLEAN type with invalid length %d encountered", len);
		472
		473	res = newSVcacheint (get_u8 () ? 0 : 1);
		474	}
		475	break;
		476
		477	case BER_TYPE_OID:
375	res = decode_object_identifier ();	478	res = decode_oid (0);
376	break;	479	break;
377		480
378	case ASN_INTEGER32:	481	case BER_TYPE_RELOID:
		482	res = decode_oid (1);
		483	break;
		484
		485	case BER_TYPE_INT:
379	res = decode_integer32 ();	486	res = decode_int ();
380	break;	487	break;
381		488
382	case ASN_APPLICATION \| ASN_UNSIGNED32:	489	case BER_TYPE_UTF8:
383	case ASN_APPLICATION \| ASN_COUNTER32:	490	res = decode_data ();
384	case ASN_APPLICATION \| ASN_TIMETICKS:	491	SvUTF8_on (res);
		492	break;
		493
		494	case BER_TYPE_BYTES:
		495	res = decode_data ();
		496	break;
		497
		498	case BER_TYPE_IPADDRESS:
		499	{
		500	U32 len = get_length ();
		501
		502	if (len != 4)
		503	croak ("BER_TYPE_IPADDRESS type with invalid length %d encountered", len);
		504
		505	U8 c1 = get_u8 ();
		506	U8 c2 = get_u8 ();
		507	U8 c3 = get_u8 ();
		508	U8 c4 = get_u8 ();
		509
		510	res = newSVpvf ("%d.%d.%d.%d", c1, c2, c3, c4);
		511	}
		512	break;
		513
		514	case BER_TYPE_UCS2:
		515	res = decode_ucs (2);
		516	break;
		517
		518	case BER_TYPE_UCS4:
385	res = decode_unsigned32 ();	519	res = decode_ucs (4);
386	break;	520	break;
387		521
388	#if 0 // handled by default case	522	case BER_TYPE_REAL:
389	case ASN_OCTET_STRING:	523	case BER_TYPE_CROAK:
390	case ASN_APPLICATION \| ASN_IPADDRESS:
391	case ASN_APPLICATION \| ASN_OPAQUE:
392	res = decode_octet_string ();
393	break;
394	#endif
395
396	case ASN_APPLICATION \| ASN_COUNTER64:
397	res = decode_integer64 ();
398	break;
399
400	default:	524	default:
401	res = decode_octet_string ();	525	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
402	break;
403	}	526	}
404		527
405	AV *av = newAV ();	528	AV *av = newAV ();
406	av_fill (av, BER_ARRAYSIZE - 1);	529	av_fill (av, BER_ARRAYSIZE - 1);
407	AvARRAY (av)[BER_CLASS ] = newSVcacheint (klass >> ASN_CLASS_SHIFT);	530	AvARRAY (av)[BER_CLASS ] = newSVcacheint (klass);
408	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);	531	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);
409	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (constructed ? 1 : 0);	532	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (constructed ? 1 : 0);
410	AvARRAY (av)[BER_DATA ] = res;	533	AvARRAY (av)[BER_DATA ] = res;
411		534
412	return newRV_noinc ((SV *)av);	535	return newRV_noinc ((SV *)av);
413	}	536	}
414		537
		538	/////////////////////////////////////////////////////////////////////////////
		539	// encoder
		540
		541	/* adds two STRLENs together, slow, and with paranoia */
		542	static STRLEN
		543	strlen_sum (STRLEN l1, STRLEN l2)
		544	{
		545	size_t sum = l1 + l2;
		546
		547	if (sum < (size_t)l2 \|\| sum != (size_t)(STRLEN)sum)
		548	croak ("JSON::XS: string size overflow");
		549
		550	return sum;
		551	}
		552
		553	static void
		554	set_buf (SV *sv)
		555	{
		556	STRLEN len;
		557	buf_sv = sv;
		558	buf = SvPVbyte (buf_sv, len);
		559	cur = buf;
		560	end = buf + len;
		561	}
		562
		563	/* similar to SvGROW, but somewhat safer and guarantees exponential realloc strategy */
		564	static char *
		565	my_sv_grow (SV *sv, size_t len1, size_t len2)
		566	{
		567	len1 = strlen_sum (len1, len2);
		568	len1 = strlen_sum (len1, len1 >> 1);
		569
		570	if (len1 > 4096 - 24)
		571	len1 = (len1 \| 4095) - 24;
		572
		573	return SvGROW (sv, len1);
		574	}
		575
		576	static void
		577	need (STRLEN len)
		578	{
		579	if (expect_false ((uintptr_t)(end - cur) < len))
		580	{
		581	STRLEN pos = cur - buf;
		582	buf = my_sv_grow (buf_sv, pos, len);
		583	cur = buf + pos;
		584	end = buf + SvLEN (buf_sv) - 1;
		585	}
		586	}
		587
		588	static void
		589	put_u8 (int val)
		590	{
		591	need (1);
		592	*cur++ = val;
		593	}
		594
		595	static void
		596	put_w_nocheck (U32 val)
		597	{
		598	cur = (val >> 7 4) \| 0x80; cur += val >= (1 << (7 * 4));
		599	cur = (val >> 7 3) \| 0x80; cur += val >= (1 << (7 * 3));
		600	cur = (val >> 7 2) \| 0x80; cur += val >= (1 << (7 * 2));
		601	cur = (val >> 7 1) \| 0x80; cur += val >= (1 << (7 * 1));
		602	*cur = val & 0x7f; cur += 1;
		603	}
		604
		605	static void
		606	put_w (U32 val)
		607	{
		608	need (5); // we only handle up to 5 bytes
		609
		610	put_w_nocheck (val);
		611	}
		612
		613	static U8 *
		614	put_length_at (U32 val, U8 *cur)
		615	{
		616	if (val < 0x7fU)
		617	*cur++ = val;
		618	else
		619	{
		620	U8 *lenb = cur++;
		621
		622	cur = val >> 24; cur += cur > 0;
		623	cur = val >> 16; cur += cur > 0;
		624	cur = val >> 8; cur += cur > 0;
		625	*cur = val ; cur += 1;
		626
		627	*lenb = 0x80 + cur - lenb - 1;
		628	}
		629
		630	return cur;
		631	}
		632
		633	static void
		634	put_length (U32 val)
		635	{
		636	need (5 + val);
		637	cur = put_length_at (val, cur);
		638	}
		639
		640	// return how many bytes the encoded length requires
		641	static int length_length (U32 val)
		642	{
		643	return val < 0x7fU
		644	? 1
		645	: 2 + (val > 0xffU) + (val > 0xffffU) + (val > 0xffffffU);
		646	}
		647
		648	static void
		649	encode_data (const char *ptr, STRLEN len)
		650	{
		651	put_length (len);
		652	memcpy (cur, ptr, len);
		653	cur += len;
		654	}
		655
		656	static void
		657	encode_uv (UV uv)
		658	{
		659	}
		660
		661	static void
		662	encode_int (SV *sv)
		663	{
		664	need (8 + 1 + 1); // 64 bit + length + extra 0
		665
		666	if (expect_false (!SvIOK (sv)))
		667	sv_2iv_flags (sv, 0);
		668
		669	U8 *lenb = cur++;
		670
		671	if (SvIOK_notUV (sv))
		672	{
		673	IV iv = SvIVX (sv);
		674
		675	if (expect_false (iv < 0))
		676	{
		677	// get two's complement bit pattern - works even on hypothetical non-2c machines
		678	UV uv = iv;
		679
		680	#if UVSIZE > 4
		681	*cur = uv >> 56; cur += !!(~uv & 0xff80000000000000U);
		682	*cur = uv >> 48; cur += !!(~uv & 0xffff800000000000U);
		683	*cur = uv >> 40; cur += !!(~uv & 0xffffff8000000000U);
		684	*cur = uv >> 32; cur += !!(~uv & 0xffffffff80000000U);
		685	#endif
		686	*cur = uv >> 24; cur += !!(~uv & 0xffffffffff800000U);
		687	*cur = uv >> 16; cur += !!(~uv & 0xffffffffffff8000U);
		688	*cur = uv >> 8; cur += !!(~uv & 0xffffffffffffff80U);
		689	*cur = uv ; cur += 1;
		690
		691	*lenb = cur - lenb - 1;
		692
		693	return;
		694	}
		695	}
		696
		697	UV uv = SvUV (sv);
		698
		699	// prepend an extra 0 if the high bit is 1
		700	cur = 0; cur += !!(uv & ((UV)1 << (UVSIZE 8 - 1)));
		701
		702	#if UVSIZE > 4
		703	*cur = uv >> 56; cur += !!(uv & 0xff80000000000000U);
		704	*cur = uv >> 48; cur += !!(uv & 0xffff800000000000U);
		705	*cur = uv >> 40; cur += !!(uv & 0xffffff8000000000U);
		706	*cur = uv >> 32; cur += !!(uv & 0xffffffff80000000U);
		707	#endif
		708	*cur = uv >> 24; cur += !!(uv & 0xffffffffff800000U);
		709	*cur = uv >> 16; cur += !!(uv & 0xffffffffffff8000U);
		710	*cur = uv >> 8; cur += !!(uv & 0xffffffffffffff80U);
		711	*cur = uv ; cur += 1;
		712
		713	*lenb = cur - lenb - 1;
		714	}
		715
		716	// we don't know the length yet, so we optimistically
		717	// assume the length will need one octet later. if that
		718	// turns out to be wrong, we memove as needed.
		719	// mark the beginning
		720	static STRLEN
		721	len_fixup_mark ()
		722	{
		723	return cur++ - buf;
		724	}
		725
		726	// patch up the length
		727	static void
		728	len_fixup (STRLEN mark)
		729	{
		730	STRLEN reallen = (cur - buf) - mark - 1;
		731	int lenlen = length_length (reallen);
		732
		733	if (expect_false (lenlen > 1))
		734	{
		735	// bad luck, we have to shift the bytes to make room for the length
		736	need (5);
		737	memmove (buf + mark + lenlen, buf + mark + 1, reallen);
		738	cur += lenlen - 1;
		739	}
		740
		741	put_length_at (reallen, buf + mark);
		742	}
		743
		744	static char *
		745	read_uv (char str, UV uv)
		746	{
		747	UV r = 0;
		748
		749	while (*str >= '0')
		750	r = r * 10 + *str++ - '0';
		751
		752	*uv = r;
		753
		754	str += !!*str; // advance over any non-zero byte
		755
		756	return str;
		757	}
		758
		759	static void
		760	encode_oid (SV *oid, int relative)
		761	{
		762	STRLEN len;
		763	char *ptr = SvPV (oid, len); // utf8 vs. bytes does not matter
		764
		765	// we need at most as many octets as the string form
		766	need (len + 1);
		767	STRLEN mark = len_fixup_mark ();
		768
		769	UV w1, w2;
		770
		771	if (!relative)
		772	{
		773	ptr = read_uv (ptr, &w1);
		774	ptr = read_uv (ptr, &w2);
		775
		776	put_w_nocheck (w1 * 40 + w2);
		777	}
		778
		779	while (*ptr)
		780	{
		781	ptr = read_uv (ptr, &w1);
		782	put_w_nocheck (w1);
		783	}
		784
		785	len_fixup (mark);
		786	}
		787
		788	// check whether an SV is a BER tuple and returns its AV *
		789	static AV *
		790	ber_tuple (SV *tuple)
		791	{
		792	SV *rv;
		793
		794	if (expect_false (!SvROK (tuple) \|\| SvTYPE ((rv = SvRV (tuple))) != SVt_PVAV))
		795	croak ("BER tuple must be array-reference");
		796
		797	if (expect_false (SvRMAGICAL (rv)))
		798	croak ("BER tuple must not be tied");
		799
		800	if (expect_false (AvFILL ((AV *)rv) != BER_ARRAYSIZE - 1))
		801	croak ("BER tuple must contain exactly %d elements, not %d", BER_ARRAYSIZE, AvFILL ((AV *)rv) + 1);
		802
		803	return (AV *)rv;
		804	}
		805
		806	static void
		807	encode_ucs (SV *data, int chrsize)
		808	{
		809	STRLEN uchars = sv_len_utf8 (data);
		810	STRLEN len;;
		811	char *ptr = SvPVutf8 (data, len);
		812
		813	put_length (uchars * chrsize);
		814
		815	while (uchars--)
		816	{
		817	STRLEN uclen;
		818	UV uchr = utf8_to_uvchr_buf (ptr, ptr + len, &uclen);
		819
		820	ptr += uclen;
		821	len -= uclen;
		822
		823	if (chrsize == 4)
		824	{
		825	*cur++ = uchr >> 24;
		826	*cur++ = uchr >> 16;
		827	}
		828
		829	*cur++ = uchr >> 8;
		830	*cur++ = uchr;
		831	}
		832	}
		833	static void
		834	encode_ber (SV *tuple)
		835	{
		836	AV *av = ber_tuple (tuple);
		837
		838	int klass = SvIV (AvARRAY (av)[BER_CLASS]);
		839	int tag = SvIV (AvARRAY (av)[BER_TAG]);
		840	int constructed = SvIV (AvARRAY (av)[BER_CONSTRUCTED]) ? ASN_CONSTRUCTED : 0;
		841	SV *data = AvARRAY (av)[BER_DATA];
		842
		843	int identifier = (klass << ASN_CLASS_SHIFT) \| constructed;
		844
		845	if (expect_false (tag >= ASN_TAG_BER))
		846	{
		847	put_u8 (identifier \| ASN_TAG_BER);
		848	put_w (tag);
		849	}
		850	else
		851	put_u8 (identifier \| tag);
		852
		853	if (constructed)
		854	{
		855	// we optimistically assume that only one length byte is needed
		856	// and adjust later
		857	need (1);
		858	STRLEN mark = len_fixup_mark ();
		859
		860	if (expect_false (!SvROK (data) \|\| SvTYPE (SvRV (data)) != SVt_PVAV))
		861	croak ("BER constructed data must be array-reference");
		862
		863	AV av = (AV )SvRV (data);
		864	int fill = AvFILL (av);
		865
		866	if (expect_false (SvRMAGICAL (av)))
		867	croak ("BER constructed data must not be tied");
		868
		869	for (int i = 0; i <= fill; ++i)
		870	encode_ber (AvARRAY (av)[i]);
		871
		872	len_fixup (mark);
		873	}
		874	else
		875	switch (profile_lookup (cur_profile, klass, tag))
		876	{
		877	case BER_TYPE_NULL:
		878	put_length (0);
		879	break;
		880
		881	case BER_TYPE_BOOL:
		882	put_length (1);
		883	*cur++ = SvTRUE (data) ? 0xff : 0x00;
		884	break;
		885
		886	case BER_TYPE_OID:
		887	encode_oid (data, 0);
		888	break;
		889
		890	case BER_TYPE_RELOID:
		891	encode_oid (data, 1);
		892	break;
		893
		894	case BER_TYPE_INT:
		895	encode_int (data);
		896	break;
		897
		898	case BER_TYPE_BYTES:
		899	{
		900	STRLEN len;
		901	const char *ptr = SvPVbyte (data, len);
		902	encode_data (ptr, len);
		903	}
		904	break;
		905
		906	case BER_TYPE_UTF8:
		907	{
		908	STRLEN len;
		909	const char *ptr = SvPVutf8 (data, len);
		910	encode_data (ptr, len);
		911	}
		912	break;
		913
		914	case BER_TYPE_IPADDRESS:
		915	{
		916	U8 ip[4];
		917	sscanf (SvPV_nolen (data), "%hhu.%hhu.%hhu.%hhu", ip + 0, ip + 1, ip + 2, ip + 3);
		918	encode_data ((const char *)ip, sizeof (ip));
		919	}
		920	break;
		921
		922	case BER_TYPE_UCS2:
		923	encode_ucs (data, 2);
		924	break;
		925
		926	case BER_TYPE_UCS4:
		927	encode_ucs (data, 4);
		928	break;
		929
		930	case BER_TYPE_REAL:
		931	case BER_TYPE_CROAK:
		932	default:
		933	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
		934	}
		935
		936	}
		937
		938	/////////////////////////////////////////////////////////////////////////////
		939
415	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS	940	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS
416		941
417	PROTOTYPES: ENABLE	942	PROTOTYPES: ENABLE
418		943
419	BOOT:	944	BOOT:
420	{	945	{
421	HV *stash = gv_stashpv ("Convert::BER::XS", 1);	946	HV *stash = gv_stashpv ("Convert::BER::XS", 1);
		947
		948	profile_stash = gv_stashpv ("Convert::BER::XS::Profile", 1);
422		949
423	static const struct {	950	static const struct {
424	const char *name;	951	const char *name;
425	IV iv;	952	IV iv;
426	} *civ, const_iv[] = {	953	} *civ, const_iv[] = {
427	{ "ASN_BOOLEAN", ASN_BOOLEAN },	954	#define const_iv(name) { # name, name },
428	{ "ASN_INTEGER32", ASN_INTEGER32 },	955	const_iv (ASN_BOOLEAN)
429	{ "ASN_BIT_STRING", ASN_BIT_STRING },	956	const_iv (ASN_INTEGER32)
430	{ "ASN_OCTET_STRING", ASN_OCTET_STRING },	957	const_iv (ASN_BIT_STRING)
431	{ "ASN_NULL", ASN_NULL },	958	const_iv (ASN_OCTET_STRING)
432	{ "ASN_OBJECT_IDENTIFIER", ASN_OBJECT_IDENTIFIER },	959	const_iv (ASN_NULL)
433	{ "ASN_TAG_BER", ASN_TAG_BER },	960	const_iv (ASN_OBJECT_IDENTIFIER)
434	{ "ASN_TAG_MASK", ASN_TAG_MASK },	961	const_iv (ASN_OBJECT_DESCRIPTOR)
435	{ "ASN_CONSTRUCTED", ASN_CONSTRUCTED },	962	const_iv (ASN_OID)
436	{ "ASN_UNIVERSAL", ASN_UNIVERSAL >> ASN_CLASS_SHIFT },	963	const_iv (ASN_EXTERNAL)
437	{ "ASN_APPLICATION", ASN_APPLICATION >> ASN_CLASS_SHIFT },	964	const_iv (ASN_REAL)
438	{ "ASN_CONTEXT", ASN_CONTEXT >> ASN_CLASS_SHIFT },	965	const_iv (ASN_SEQUENCE)
439	{ "ASN_PRIVATE", ASN_PRIVATE >> ASN_CLASS_SHIFT },	966	const_iv (ASN_ENUMERATED)
440	{ "ASN_CLASS_MASK", ASN_CLASS_MASK },	967	const_iv (ASN_EMBEDDED_PDV)
441	{ "ASN_CLASS_SHIFT", ASN_CLASS_SHIFT },	968	const_iv (ASN_UTF8_STRING)
442	{ "ASN_SEQUENCE", ASN_SEQUENCE },	969	const_iv (ASN_RELATIVE_OID)
443	{ "ASN_IPADDRESS", ASN_IPADDRESS },	970	const_iv (ASN_SET)
444	{ "ASN_COUNTER32", ASN_COUNTER32 },	971	const_iv (ASN_NUMERIC_STRING)
445	{ "ASN_UNSIGNED32", ASN_UNSIGNED32 },	972	const_iv (ASN_PRINTABLE_STRING)
446	{ "ASN_TIMETICKS", ASN_TIMETICKS },	973	const_iv (ASN_TELETEX_STRING)
447	{ "ASN_OPAQUE", ASN_OPAQUE },	974	const_iv (ASN_T61_STRING)
448	{ "ASN_COUNTER64", ASN_COUNTER64 },	975	const_iv (ASN_VIDEOTEX_STRING)
		976	const_iv (ASN_IA5_STRING)
		977	const_iv (ASN_ASCII_STRING)
		978	const_iv (ASN_UTC_TIME)
		979	const_iv (ASN_GENERALIZED_TIME)
		980	const_iv (ASN_GRAPHIC_STRING)
		981	const_iv (ASN_VISIBLE_STRING)
		982	const_iv (ASN_ISO646_STRING)
		983	const_iv (ASN_GENERAL_STRING)
		984	const_iv (ASN_UNIVERSAL_STRING)
		985	const_iv (ASN_CHARACTER_STRING)
		986	const_iv (ASN_BMP_STRING)
449		987
450	{ "BER_CLASS" , BER_CLASS },	988	const_iv (ASN_UNIVERSAL)
451	{ "BER_TAG" , BER_TAG },	989	const_iv (ASN_APPLICATION)
452	{ "BER_CONSTRUCTED", BER_CONSTRUCTED },	990	const_iv (ASN_CONTEXT)
453	{ "BER_DATA" , BER_DATA },	991	const_iv (ASN_PRIVATE)
		992
		993	const_iv (BER_CLASS)
		994	const_iv (BER_TAG)
		995	const_iv (BER_CONSTRUCTED)
		996	const_iv (BER_DATA)
		997
		998	const_iv (BER_TYPE_BYTES)
		999	const_iv (BER_TYPE_UTF8)
		1000	const_iv (BER_TYPE_UCS2)
		1001	const_iv (BER_TYPE_UCS4)
		1002	const_iv (BER_TYPE_INT)
		1003	const_iv (BER_TYPE_OID)
		1004	const_iv (BER_TYPE_RELOID)
		1005	const_iv (BER_TYPE_NULL)
		1006	const_iv (BER_TYPE_BOOL)
		1007	const_iv (BER_TYPE_REAL)
		1008	const_iv (BER_TYPE_IPADDRESS)
		1009	const_iv (BER_TYPE_CROAK)
		1010
		1011	const_iv (SNMP_IPADDRESS)
		1012	const_iv (SNMP_COUNTER32)
		1013	const_iv (SNMP_UNSIGNED32)
		1014	const_iv (SNMP_TIMETICKS)
		1015	const_iv (SNMP_OPAQUE)
		1016	const_iv (SNMP_COUNTER64)
454	};	1017	};
455		1018
456	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1019	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
457	newCONSTSUB (stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1020	newCONSTSUB (stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
458	}	1021	}
459		1022
460	SV *	1023	SV *
461	ber_decode (SV *ber)	1024	ber_decode (SV ber, SV profile = &PL_sv_undef)
462	CODE:	1025	CODE:
463	{	1026	{
		1027	cur_profile = SvPROFILE (profile);
		1028	STRLEN len;
464	buf = SvPVbyte (ber, len);	1029	buf = SvPVbyte (ber, len);
465	cur = buf;	1030	cur = buf;
466	rem = len;	1031	end = buf + len;
467		1032
468	RETVAL = decode_ber ();	1033	RETVAL = decode_ber ();
469	}	1034	}
470	OUTPUT: RETVAL	1035	OUTPUT: RETVAL
471		1036
472	void	1037	void
473	ber_is (SV tuple, SV klass = &PL_sv_undef, SV tag = &PL_sv_undef, SV constructed = &PL_sv_undef, SV *data = &PL_sv_undef)	1038	ber_is (SV tuple, SV klass = &PL_sv_undef, SV tag = &PL_sv_undef, SV constructed = &PL_sv_undef, SV *data = &PL_sv_undef)
474	PROTOTYPE: $;$$$
475	PPCODE:	1039	PPCODE:
476	{	1040	{
477	if (!SvOK (tuple))	1041	if (!SvOK (tuple))
478	XSRETURN_NO;	1042	XSRETURN_NO;
479		1043
480	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1044	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)
481	croak ("ber_seq: tuple must be ber tuple (array-ref)");	1045	croak ("ber_is: tuple must be BER tuple (array-ref)");
482		1046
483	AV av = (AV )SvRV (tuple);	1047	AV av = (AV )SvRV (tuple);
484		1048
485	XPUSHs (	1049	XPUSHs (
486	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS ]) == SvIV (klass))	1050	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS ]) == SvIV (klass))
487	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))	1051	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))
488	&& (!SvOK (constructed) \|\| !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) == !SvIV (constructed))	1052	&& (!SvOK (constructed) \|\| !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) == !SvIV (constructed))
489	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))	1053	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))
490	? &PL_sv_yes : &PL_sv_no);	1054	? &PL_sv_yes : &PL_sv_undef);
491	}	1055	}
492		1056
493	void	1057	void
494	ber_is_seq (SV *tuple)	1058	ber_is_seq (SV *tuple)
495	PROTOTYPE: $
496	PPCODE:	1059	PPCODE:
497	{	1060	{
498	if (!SvOK (tuple))	1061	if (!SvOK (tuple))
499	XSRETURN_UNDEF;	1062	XSRETURN_UNDEF;
500		1063
501	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1064	AV *av = ber_tuple (tuple);
502	croak ("ber_seq: tuple must be ber tuple (array-ref)");
503
504	AV av = (AV )SvRV (tuple);
505		1065
506	XPUSHs (	1066	XPUSHs (
507	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1067	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL
508	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE	1068	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE
509	&& SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1069	&& SvIV (AvARRAY (av)[BER_CONSTRUCTED])
510	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);	1070	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);
511	}	1071	}
512		1072
513	void	1073	void
514	ber_is_i32 (SV *tuple, IV value)	1074	ber_is_i32 (SV tuple, SV value = &PL_sv_undef)
515	PROTOTYPE: $$
516	PPCODE:	1075	PPCODE:
517	{	1076	{
518	if (!SvOK (tuple))	1077	if (!SvOK (tuple))
519	XSRETURN_NO;	1078	XSRETURN_NO;
520		1079
521	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1080	AV *av = ber_tuple (tuple);
522	croak ("ber_seq: tuple must be ber tuple (array-ref)");
523		1081
524	AV av = (AV )SvRV (tuple);	1082	IV data = SvIV (AvARRAY (av)[BER_DATA]);
525		1083
526	XPUSHs (	1084	XPUSHs (
527	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1085	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL
528	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER32	1086	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER32
529	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1087	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])
530	&& SvIV (AvARRAY (av)[BER_DATA ]) == value	1088	&& (!SvOK (value) \|\| data == SvIV (value))
531	? &PL_sv_yes : &PL_sv_no);	1089	? sv_2mortal (data ? newSViv (data) : newSVpv ("0 but true", 0))
		1090	: &PL_sv_undef);
532	}	1091	}
533		1092
534	void	1093	void
535	ber_is_oid (SV tuple, SV oid)	1094	ber_is_oid (SV tuple, SV oid = &PL_sv_undef)
536	PROTOTYPE: $$
537	PPCODE:	1095	PPCODE:
538	{	1096	{
539	if (!SvOK (tuple))	1097	if (!SvOK (tuple))
540	XSRETURN_NO;	1098	XSRETURN_NO;
541		1099
542	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1100	AV *av = ber_tuple (tuple);
543	croak ("ber_seq: tuple must be ber tuple (array-ref)");
544
545	AV av = (AV )SvRV (tuple);
546		1101
547	XPUSHs (	1102	XPUSHs (
548	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1103	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL
549	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER	1104	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER
550	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1105	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])
551	&& sv_eq (AvARRAY (av)[BER_DATA], oid)	1106	&& (!SvOK (oid) \|\| sv_eq (AvARRAY (av)[BER_DATA], oid))
552	? &PL_sv_yes : &PL_sv_no);	1107	? newSVsv (AvARRAY (av)[BER_DATA]) : &PL_sv_undef);
553	}	1108	}
554		1109
		1110	#############################################################################
		1111
		1112	void
		1113	ber_encode (SV tuple, SV profile = &PL_sv_undef)
		1114	PPCODE:
		1115	{
		1116	cur_profile = SvPROFILE (profile);
		1117	buf_sv = sv_2mortal (NEWSV (0, 256));
		1118	SvPOK_only (buf_sv);
		1119	set_buf (buf_sv);
		1120
		1121	encode_ber (tuple);
		1122
		1123	SvCUR_set (buf_sv, cur - buf);
		1124	XPUSHs (buf_sv);
		1125	}
		1126
		1127	SV *
		1128	ber_i32 (IV iv)
		1129	CODE:
		1130	{
		1131	AV *av = newAV ();
		1132	av_fill (av, BER_ARRAYSIZE - 1);
		1133	AvARRAY (av)[BER_CLASS ] = newSVcacheint (ASN_UNIVERSAL);
		1134	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_INTEGER32);
		1135	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (0);
		1136	AvARRAY (av)[BER_DATA ] = newSViv (iv);
		1137	RETVAL = newRV_noinc ((SV *)av);
		1138	}
		1139	OUTPUT: RETVAL
		1140
		1141	# TODO: not arrayref, but elements?
		1142	SV *
		1143	ber_seq (SV *arrayref)
		1144	CODE:
		1145	{
		1146	AV *av = newAV ();
		1147	av_fill (av, BER_ARRAYSIZE - 1);
		1148	AvARRAY (av)[BER_CLASS ] = newSVcacheint (ASN_UNIVERSAL);
		1149	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_SEQUENCE);
		1150	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (1);
		1151	AvARRAY (av)[BER_DATA ] = newSVsv (arrayref);
		1152	RETVAL = newRV_noinc ((SV *)av);
		1153	}
		1154	OUTPUT: RETVAL
		1155
		1156	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS::Profile
		1157
		1158	SV *
		1159	new (SV *klass)
		1160	CODE:
		1161	RETVAL = profile_new ();
		1162	OUTPUT: RETVAL
		1163
		1164	void
		1165	set (SV *profile, int klass, int tag, int type)
		1166	CODE:
		1167	profile_set (SvPROFILE (profile), klass, tag, type);
		1168
		1169	IV
		1170	get (SV *profile, int klass, int tag)
		1171	CODE:
		1172	RETVAL = profile_lookup (SvPROFILE (profile), klass, tag);
		1173	OUTPUT: RETVAL
		1174
		1175	void
		1176	_set_default (SV *profile)
		1177	CODE:
		1178	default_profile = SvPROFILE (profile);
		1179
		1180

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Comparing Convert-BER-XS/XS.xs (file contents): Revision 1.2 by root, Fri Apr 19 16:49:02 2019 UTC vs. Revision 1.8 by root, Sat Apr 20 01:50:13 2019 UTC

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Comparing Convert-BER-XS/XS.xs (file contents):
Revision 1.2 by root, Fri Apr 19 16:49:02 2019 UTC vs.
Revision 1.8 by root, Sat Apr 20 01:50:13 2019 UTC