[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 1.11 by root, Sat Apr 20 12:25:23 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 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];
58		115
59	// 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
60	static SV *newSVcacheint (int val)	117	static SV *newSVcacheint (int val)
61	{	118	{
62	static SV *cache[32];
63
64	if (val < 0 \|\| val >= sizeof (cache))	119	if (expect_false (val < 0 \|\| val >= sizeof (sviv_cache)))
65	return newSViv (val);	120	return newSViv (val);
66		121
67	if (!cache [val])	122	if (expect_false (!sviv_cache [val]))
68	{	123	{
69	cache [val] = newSVuv (val);	124	sviv_cache [val] = newSVuv (val);
70	SvREADONLY_on (cache [val]);	125	SvREADONLY_on (sviv_cache [val]);
71	}	126	}
72		127
73	return SvREFCNT_inc_NN (cache [val]);	128	return SvREFCNT_inc_NN (sviv_cache [val]);
74	}	129	}
75		130
76	/////////////////////////////////////////////////////////////////////////////	131	/////////////////////////////////////////////////////////////////////////////
77		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 void
		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; )
		205	profile_set ((profile_type *)sv, celem->klass, celem->tag, celem->type);
		206
		207	return sv_bless (newRV_noinc (sv), profile_stash);
		208	}
		209
		210	/////////////////////////////////////////////////////////////////////////////
		211	// decoder
		212
78	static void	213	static void
79	error (const char *errmsg)	214	error (const char *errmsg)
80	{	215	{
81	croak ("%s at offset 0x%04x", errmsg, cur - buf);	216	croak ("%s at offset 0x%04x", errmsg, cur - buf);
82	}	217	}
83		218
84	static int	219	static void
85	need (int count)	220	want (UV count)
86	{	221	{
87	if (count < 0 \|\| (int)rem < count)	222	if (expect_false ((uintptr_t)(end - cur) < count))
88	{
89	error ("unexpected end of message buffer");	223	error ("unexpected end of message buffer");
90	return 0;
91	}
92
93	return 1;
94	}	224	}
95		225
96	// get_* functions fetch something from the buffer	226	// get_* functions fetch something from the buffer
97	// decode_* functions use get_* fun ctions to decode ber values	227	// decode_* functions use get_* fun ctions to decode ber values
98		228
		229	// get n octets
99	static U8 *	230	static U8 *
100	get_n (int count, const U8 *errres)	231	get_n (UV count)
101	{	232	{
102	if (!need (count))	233	want (count);
103	return (U8 *)errres;
104
105	U8 *res = cur;	234	U8 *res = cur;
106
107	cur += count;	235	cur += count;
108	rem -= count;
109
110	return res;	236	return res;
111	}	237	}
112		238
		239	// get single octet
113	static U8	240	static U8
114	get_u8 (void)	241	get_u8 (void)
115	{	242	{
116	if (rem <= 0)	243	if (cur == end)
117	{
118	error ("unexpected end of message buffer");	244	error ("unexpected end of message buffer");
119	return 0;
120	}
121		245
122	rem--;
123	return *cur++;	246	return *cur++;
124	}	247	}
125		248
		249	// get ber-encoded integer (i.e. pack "w")
126	static U32	250	static U32
127	get_ber (void)	251	get_w (void)
128	{	252	{
129	U32 res = 0;	253	U32 res = 0;
130		254
131	for (;;)	255	for (;;)
132	{	256	{
…		…
166	}	290	}
167		291
168	return res;	292	return res;
169	}	293	}
170		294
171	static U32	295	static SV *
172	get_integer32 (void)	296	decode_int ()
173	{	297	{
174	U32 length = get_length ();	298	int len = get_length ();
175		299
176	if (length <= 0)	300	if (len <= 0)
177	{	301	{
178	error ("INTEGER32 length equal to zero");	302	error ("integer length equal to zero");
179	return 0;	303	return 0;
180	}	304	}
181		305
182	U8 *data = get_n (length, 0);	306	U8 *data = get_n (len);
183		307
184	if (!data)	308	int negative = data [0] & 0x80;
185	return 0;
186		309
187	if (length > 5 \|\| (length > 4 && data [0]))	310	UV val = negative ? -1 : 0; // copy signbit to all bits
188	{
189	error ("INTEGER32 length too long");
190	return 0;
191	}
192		311
193	U32 res = data [0] & 0x80 ? 0xffffffff : 0;	312	do
194
195	while (length--)
196	res = (res << 8) \| *data++;	313	val = (val << 8) \| *data++;
		314	while (--len);
197		315
198	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);
199	}	319	}
200		320
201	static SV *	321	static SV *
202	decode_integer32 (void)	322	decode_data (void)
203	{	323	{
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 ();	324	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);	325	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);	326	return newSVpvn ((char *)data, len);
272	}	327	}
273		328
274	// gelper for decode_object_identifier	329	// gelper for decode_object_identifier
275	static char *	330	static char *
276	write_uv (char *buf, U32 u)	331	write_uv (char *buf, U32 u)
277	{	332	{
278	// 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)
279	if (u < 10)	334	if (expect_true (u < 10))
280	*buf++ = u + '0';	335	*buf++ = u + '0';
281	else	336	else
282	{	337	{
283	char *beg = buf;	338	char *beg = buf;
284		339
…		…
288	u /= 10;	343	u /= 10;
289	}	344	}
290	while (u);	345	while (u);
291		346
292	// reverse digits	347	// reverse digits
293	for (char *ptr = buf; --ptr != beg; ++beg)	348	char *ptr = buf;
		349	while (--ptr != beg)
294	{	350	{
295	char c = *ptr;	351	char c = *ptr;
296	ptr = beg;	352	ptr = beg;
297	*beg = c;	353	*beg = c;
		354	++beg;
298	}	355	}
299	}	356	}
300		357
301	return buf;	358	return buf;
302	}	359	}
303		360
304	static SV *	361	static SV *
305	decode_object_identifier (void)	362	decode_oid (int relative)
306	{	363	{
307	U32 length = get_length ();	364	U32 len = get_length ();
308		365
309	if (length <= 0)	366	if (len <= 0)
310	{	367	{
311	error ("OBJECT IDENTIFIER length equal to zero");	368	error ("OBJECT IDENTIFIER length equal to zero");
312	return &PL_sv_undef;	369	return &PL_sv_undef;
313	}	370	}
314		371
315	U8 *end = cur + length;	372	U8 *end = cur + len;
316	U32 w = get_ber ();	373	U32 w = get_w ();
317		374
318	static char oid[MAX_OID_STRLEN]; // must be static	375	static char oid[MAX_OID_STRLEN]; // must be static
319	char *app = oid;	376	char *app = oid;
320		377
		378	if (relative)
		379	app = write_uv (app, w);
		380	else
		381	{
321	app = write_uv (app, (U8)w / 40);	382	app = write_uv (app, (U8)w / 40);
322	*app++ = '.';	383	*app++ = '.';
323	app = write_uv (app, (U8)w % 40);	384	app = write_uv (app, (U8)w % 40);
		385	}
324		386
325	// we assume an oid component is never > 64 bytes	387	// we assume an oid component is never > 64 bytes
326	while (cur < end && oid + sizeof (oid) - app > 64)	388	while (cur < end && oid + sizeof (oid) - app > 64)
327	{	389	{
328	w = get_ber ();	390	w = get_w ();
329	*app++ = '.';	391	*app++ = '.';
330	app = write_uv (app, w);	392	app = write_uv (app, w);
331	}	393	}
332		394
333	return newSVpvn (oid, app - oid);	395	return newSVpvn (oid, app - oid);
334	}	396	}
335		397
		398	// TODO: this is unacceptably slow
		399	static SV *
		400	decode_ucs (int chrsize)
		401	{
		402	SV *res = NEWSV (0, 0);
		403
		404	U32 len = get_length ();
		405
		406	if (len & (chrsize - 1))
		407	croak ("BER_TYPE_UCS has an invalid number of octets (%d)", len);
		408
		409	while (len)
		410	{
		411	U8 b1 = get_u8 ();
		412	U8 b2 = get_u8 ();
		413	U32 chr = (b1 << 8) \| b2;
		414
		415	if (chrsize == 4)
		416	{
		417	U8 b3 = get_u8 ();
		418	U8 b4 = get_u8 ();
		419	chr = (chr << 16) \| (b3 << 8) \| b4;
		420	}
		421
		422	U8 uchr [UTF8_MAXBYTES];
		423	int uclen = uvuni_to_utf8 (uchr, chr) - uchr;
		424
		425	sv_catpvn (res, (const char *)uchr, uclen);
		426	len -= chrsize;
		427	}
		428
		429	SvUTF8_on (res);
		430
		431	return res;
		432	}
		433
336	static SV *	434	static SV *
337	decode_ber ()	435	decode_ber ()
338	{	436	{
339	int identifier = get_u8 ();	437	int identifier = get_u8 ();
340		438
341	SV *res;	439	SV *res;
342		440
343	int constructed = identifier & ASN_CONSTRUCTED;	441	int constructed = identifier & ASN_CONSTRUCTED;
344	int klass = identifier & ASN_CLASS_MASK;	442	int klass = (identifier & ASN_CLASS_MASK) >> ASN_CLASS_SHIFT;
345	int tag = identifier & ASN_TAG_MASK;	443	int tag = identifier & ASN_TAG_MASK;
346		444
347	if (tag == ASN_TAG_BER)	445	if (tag == ASN_TAG_BER)
348	tag = get_ber ();	446	tag = get_w ();
349		447
350	if (tag == ASN_TAG_BER)	448	if (tag == ASN_TAG_BER)
351	tag = get_ber ();	449	tag = get_w ();
352		450
353	if (constructed)	451	if (constructed)
354	{	452	{
355	U32 len = get_length ();	453	U32 len = get_length ();
356	U32 seqend = (cur - buf) + len;	454	U32 seqend = (cur - buf) + len;
…		…
363	croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend);	461	croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend);
364		462
365	res = newRV_inc ((SV *)av);	463	res = newRV_inc ((SV *)av);
366	}	464	}
367	else	465	else
368	switch (identifier)	466	switch (profile_lookup (cur_profile, klass, tag))
369	{	467	{
370	case ASN_NULL:	468	case BER_TYPE_NULL:
371	res = &PL_sv_undef;	469	res = &PL_sv_undef;
372	break;	470	break;
373		471
374	case ASN_OBJECT_IDENTIFIER:	472	case BER_TYPE_BOOL:
		473	{
		474	U32 len = get_length ();
		475
		476	if (len != 1)
		477	croak ("BER_TYPE_BOOLEAN type with invalid length %d encountered", len);
		478
		479	res = newSVcacheint (get_u8 () ? 0 : 1);
		480	}
		481	break;
		482
		483	case BER_TYPE_OID:
375	res = decode_object_identifier ();	484	res = decode_oid (0);
376	break;	485	break;
377		486
378	case ASN_INTEGER32:	487	case BER_TYPE_RELOID:
		488	res = decode_oid (1);
		489	break;
		490
		491	case BER_TYPE_INT:
379	res = decode_integer32 ();	492	res = decode_int ();
380	break;	493	break;
381		494
382	case ASN_APPLICATION \| ASN_UNSIGNED32:	495	case BER_TYPE_UTF8:
383	case ASN_APPLICATION \| ASN_COUNTER32:	496	res = decode_data ();
384	case ASN_APPLICATION \| ASN_TIMETICKS:	497	SvUTF8_on (res);
		498	break;
		499
		500	case BER_TYPE_BYTES:
		501	res = decode_data ();
		502	break;
		503
		504	case BER_TYPE_IPADDRESS:
		505	{
		506	U32 len = get_length ();
		507
		508	if (len != 4)
		509	croak ("BER_TYPE_IPADDRESS type with invalid length %d encountered", len);
		510
		511	U8 c1 = get_u8 ();
		512	U8 c2 = get_u8 ();
		513	U8 c3 = get_u8 ();
		514	U8 c4 = get_u8 ();
		515
		516	res = newSVpvf ("%d.%d.%d.%d", c1, c2, c3, c4);
		517	}
		518	break;
		519
		520	case BER_TYPE_UCS2:
		521	res = decode_ucs (2);
		522	break;
		523
		524	case BER_TYPE_UCS4:
385	res = decode_unsigned32 ();	525	res = decode_ucs (4);
386	break;	526	break;
387		527
388	#if 0 // handled by default case	528	case BER_TYPE_REAL:
389	case ASN_OCTET_STRING:	529	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:	530	default:
401	res = decode_octet_string ();	531	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
402	break;
403	}	532	}
404		533
405	AV *av = newAV ();	534	AV *av = newAV ();
406	av_fill (av, BER_ARRAYSIZE - 1);	535	av_fill (av, BER_ARRAYSIZE - 1);
407	AvARRAY (av)[BER_CLASS ] = newSVcacheint (klass >> ASN_CLASS_SHIFT);	536	AvARRAY (av)[BER_CLASS ] = newSVcacheint (klass);
408	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);	537	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);
409	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (constructed ? 1 : 0);	538	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (constructed ? 1 : 0);
410	AvARRAY (av)[BER_DATA ] = res;	539	AvARRAY (av)[BER_DATA ] = res;
411		540
412	return newRV_noinc ((SV *)av);	541	return newRV_noinc ((SV *)av);
413	}	542	}
414		543
		544	/////////////////////////////////////////////////////////////////////////////
		545	// encoder
		546
		547	/* adds two STRLENs together, slow, and with paranoia */
		548	static STRLEN
		549	strlen_sum (STRLEN l1, STRLEN l2)
		550	{
		551	size_t sum = l1 + l2;
		552
		553	if (sum < (size_t)l2 \|\| sum != (size_t)(STRLEN)sum)
		554	croak ("JSON::XS: string size overflow");
		555
		556	return sum;
		557	}
		558
		559	static void
		560	set_buf (SV *sv)
		561	{
		562	STRLEN len;
		563	buf_sv = sv;
		564	buf = (U8 *)SvPVbyte (buf_sv, len);
		565	cur = buf;
		566	end = buf + len;
		567	}
		568
		569	/* similar to SvGROW, but somewhat safer and guarantees exponential realloc strategy */
		570	static char *
		571	my_sv_grow (SV *sv, size_t len1, size_t len2)
		572	{
		573	len1 = strlen_sum (len1, len2);
		574	len1 = strlen_sum (len1, len1 >> 1);
		575
		576	if (len1 > 4096 - 24)
		577	len1 = (len1 \| 4095) - 24;
		578
		579	return SvGROW (sv, len1);
		580	}
		581
		582	static void
		583	need (STRLEN len)
		584	{
		585	if (expect_false ((uintptr_t)(end - cur) < len))
		586	{
		587	STRLEN pos = cur - buf;
		588	buf = (U8 *)my_sv_grow (buf_sv, pos, len);
		589	cur = buf + pos;
		590	end = buf + SvLEN (buf_sv) - 1;
		591	}
		592	}
		593
		594	static void
		595	put_u8 (int val)
		596	{
		597	need (1);
		598	*cur++ = val;
		599	}
		600
		601	static void
		602	put_w_nocheck (U32 val)
		603	{
		604	cur = (val >> 7 4) \| 0x80; cur += val >= (1 << (7 * 4));
		605	cur = (val >> 7 3) \| 0x80; cur += val >= (1 << (7 * 3));
		606	cur = (val >> 7 2) \| 0x80; cur += val >= (1 << (7 * 2));
		607	cur = (val >> 7 1) \| 0x80; cur += val >= (1 << (7 * 1));
		608	*cur = val & 0x7f; cur += 1;
		609	}
		610
		611	static void
		612	put_w (U32 val)
		613	{
		614	need (5); // we only handle up to 5 bytes
		615
		616	put_w_nocheck (val);
		617	}
		618
		619	static U8 *
		620	put_length_at (U32 val, U8 *cur)
		621	{
		622	if (val < 0x7fU)
		623	*cur++ = val;
		624	else
		625	{
		626	U8 *lenb = cur++;
		627
		628	cur = val >> 24; cur += cur > 0;
		629	cur = val >> 16; cur += cur > 0;
		630	cur = val >> 8; cur += cur > 0;
		631	*cur = val ; cur += 1;
		632
		633	*lenb = 0x80 + cur - lenb - 1;
		634	}
		635
		636	return cur;
		637	}
		638
		639	static void
		640	put_length (U32 val)
		641	{
		642	need (5 + val);
		643	cur = put_length_at (val, cur);
		644	}
		645
		646	// return how many bytes the encoded length requires
		647	static int length_length (U32 val)
		648	{
		649	return val < 0x7fU
		650	? 1
		651	: 2 + (val > 0xffU) + (val > 0xffffU) + (val > 0xffffffU);
		652	}
		653
		654	static void
		655	encode_data (const char *ptr, STRLEN len)
		656	{
		657	put_length (len);
		658	memcpy (cur, ptr, len);
		659	cur += len;
		660	}
		661
		662	static void
		663	encode_uv (UV uv)
		664	{
		665	}
		666
		667	static void
		668	encode_int (SV *sv)
		669	{
		670	need (8 + 1 + 1); // 64 bit + length + extra 0
		671
		672	if (expect_false (!SvIOK (sv)))
		673	sv_2iv_flags (sv, 0);
		674
		675	U8 *lenb = cur++;
		676
		677	if (SvIOK_notUV (sv))
		678	{
		679	IV iv = SvIVX (sv);
		680
		681	if (expect_false (iv < 0))
		682	{
		683	// get two's complement bit pattern - works even on hypothetical non-2c machines
		684	UV uv = iv;
		685
		686	#if UVSIZE > 4
		687	*cur = uv >> 56; cur += !!(~uv & 0xff80000000000000U);
		688	*cur = uv >> 48; cur += !!(~uv & 0xffff800000000000U);
		689	*cur = uv >> 40; cur += !!(~uv & 0xffffff8000000000U);
		690	*cur = uv >> 32; cur += !!(~uv & 0xffffffff80000000U);
		691	#endif
		692	*cur = uv >> 24; cur += !!(~uv & 0xffffffffff800000U);
		693	*cur = uv >> 16; cur += !!(~uv & 0xffffffffffff8000U);
		694	*cur = uv >> 8; cur += !!(~uv & 0xffffffffffffff80U);
		695	*cur = uv ; cur += 1;
		696
		697	*lenb = cur - lenb - 1;
		698
		699	return;
		700	}
		701	}
		702
		703	UV uv = SvUV (sv);
		704
		705	// prepend an extra 0 if the high bit is 1
		706	cur = 0; cur += !!(uv & ((UV)1 << (UVSIZE 8 - 1)));
		707
		708	#if UVSIZE > 4
		709	*cur = uv >> 56; cur += !!(uv & 0xff80000000000000U);
		710	*cur = uv >> 48; cur += !!(uv & 0xffff800000000000U);
		711	*cur = uv >> 40; cur += !!(uv & 0xffffff8000000000U);
		712	*cur = uv >> 32; cur += !!(uv & 0xffffffff80000000U);
		713	#endif
		714	*cur = uv >> 24; cur += !!(uv & 0xffffffffff800000U);
		715	*cur = uv >> 16; cur += !!(uv & 0xffffffffffff8000U);
		716	*cur = uv >> 8; cur += !!(uv & 0xffffffffffffff80U);
		717	*cur = uv ; cur += 1;
		718
		719	*lenb = cur - lenb - 1;
		720	}
		721
		722	// we don't know the length yet, so we optimistically
		723	// assume the length will need one octet later. if that
		724	// turns out to be wrong, we memove as needed.
		725	// mark the beginning
		726	static STRLEN
		727	len_fixup_mark ()
		728	{
		729	return cur++ - buf;
		730	}
		731
		732	// patch up the length
		733	static void
		734	len_fixup (STRLEN mark)
		735	{
		736	STRLEN reallen = (cur - buf) - mark - 1;
		737	int lenlen = length_length (reallen);
		738
		739	if (expect_false (lenlen > 1))
		740	{
		741	// bad luck, we have to shift the bytes to make room for the length
		742	need (5);
		743	memmove (buf + mark + lenlen, buf + mark + 1, reallen);
		744	cur += lenlen - 1;
		745	}
		746
		747	put_length_at (reallen, buf + mark);
		748	}
		749
		750	static char *
		751	read_uv (char str, UV uv)
		752	{
		753	UV r = 0;
		754
		755	while (*str >= '0')
		756	r = r * 10 + *str++ - '0';
		757
		758	*uv = r;
		759
		760	str += !!*str; // advance over any non-zero byte
		761
		762	return str;
		763	}
		764
		765	static void
		766	encode_oid (SV *oid, int relative)
		767	{
		768	STRLEN len;
		769	char *ptr = SvPV (oid, len); // utf8 vs. bytes does not matter
		770
		771	// we need at most as many octets as the string form
		772	need (len + 1);
		773	STRLEN mark = len_fixup_mark ();
		774
		775	UV w1, w2;
		776
		777	if (!relative)
		778	{
		779	ptr = read_uv (ptr, &w1);
		780	ptr = read_uv (ptr, &w2);
		781
		782	put_w_nocheck (w1 * 40 + w2);
		783	}
		784
		785	while (*ptr)
		786	{
		787	ptr = read_uv (ptr, &w1);
		788	put_w_nocheck (w1);
		789	}
		790
		791	len_fixup (mark);
		792	}
		793
		794	// check whether an SV is a BER tuple and returns its AV *
		795	static AV *
		796	ber_tuple (SV *tuple)
		797	{
		798	SV *rv;
		799
		800	if (expect_false (!SvROK (tuple) \|\| SvTYPE ((rv = SvRV (tuple))) != SVt_PVAV))
		801	croak ("BER tuple must be array-reference");
		802
		803	if (expect_false (SvRMAGICAL (rv)))
		804	croak ("BER tuple must not be tied");
		805
		806	if (expect_false (AvFILL ((AV *)rv) != BER_ARRAYSIZE - 1))
		807	croak ("BER tuple must contain exactly %d elements, not %d", BER_ARRAYSIZE, AvFILL ((AV *)rv) + 1);
		808
		809	return (AV *)rv;
		810	}
		811
		812	static void
		813	encode_ucs (SV *data, int chrsize)
		814	{
		815	STRLEN uchars = sv_len_utf8 (data);
		816	STRLEN len;;
		817	char *ptr = SvPVutf8 (data, len);
		818
		819	put_length (uchars * chrsize);
		820
		821	while (uchars--)
		822	{
		823	STRLEN uclen;
		824	UV uchr = utf8_to_uvchr_buf ((U8 )ptr, (U8 )ptr + len, &uclen);
		825
		826	ptr += uclen;
		827	len -= uclen;
		828
		829	if (chrsize == 4)
		830	{
		831	*cur++ = uchr >> 24;
		832	*cur++ = uchr >> 16;
		833	}
		834
		835	*cur++ = uchr >> 8;
		836	*cur++ = uchr;
		837	}
		838	}
		839	static void
		840	encode_ber (SV *tuple)
		841	{
		842	AV *av = ber_tuple (tuple);
		843
		844	int klass = SvIV (AvARRAY (av)[BER_CLASS]);
		845	int tag = SvIV (AvARRAY (av)[BER_TAG]);
		846	int constructed = SvIV (AvARRAY (av)[BER_CONSTRUCTED]) ? ASN_CONSTRUCTED : 0;
		847	SV *data = AvARRAY (av)[BER_DATA];
		848
		849	int identifier = (klass << ASN_CLASS_SHIFT) \| constructed;
		850
		851	if (expect_false (tag >= ASN_TAG_BER))
		852	{
		853	put_u8 (identifier \| ASN_TAG_BER);
		854	put_w (tag);
		855	}
		856	else
		857	put_u8 (identifier \| tag);
		858
		859	if (constructed)
		860	{
		861	// we optimistically assume that only one length byte is needed
		862	// and adjust later
		863	need (1);
		864	STRLEN mark = len_fixup_mark ();
		865
		866	if (expect_false (!SvROK (data) \|\| SvTYPE (SvRV (data)) != SVt_PVAV))
		867	croak ("BER constructed data must be array-reference");
		868
		869	AV av = (AV )SvRV (data);
		870	int fill = AvFILL (av);
		871
		872	if (expect_false (SvRMAGICAL (av)))
		873	croak ("BER constructed data must not be tied");
		874
		875	int i;
		876	for (i = 0; i <= fill; ++i)
		877	encode_ber (AvARRAY (av)[i]);
		878
		879	len_fixup (mark);
		880	}
		881	else
		882	switch (profile_lookup (cur_profile, klass, tag))
		883	{
		884	case BER_TYPE_NULL:
		885	put_length (0);
		886	break;
		887
		888	case BER_TYPE_BOOL:
		889	put_length (1);
		890	*cur++ = SvTRUE (data) ? 0xff : 0x00;
		891	break;
		892
		893	case BER_TYPE_OID:
		894	encode_oid (data, 0);
		895	break;
		896
		897	case BER_TYPE_RELOID:
		898	encode_oid (data, 1);
		899	break;
		900
		901	case BER_TYPE_INT:
		902	encode_int (data);
		903	break;
		904
		905	case BER_TYPE_BYTES:
		906	{
		907	STRLEN len;
		908	const char *ptr = SvPVbyte (data, len);
		909	encode_data (ptr, len);
		910	}
		911	break;
		912
		913	case BER_TYPE_UTF8:
		914	{
		915	STRLEN len;
		916	const char *ptr = SvPVutf8 (data, len);
		917	encode_data (ptr, len);
		918	}
		919	break;
		920
		921	case BER_TYPE_IPADDRESS:
		922	{
		923	U8 ip[4];
		924	sscanf (SvPV_nolen (data), "%hhu.%hhu.%hhu.%hhu", ip + 0, ip + 1, ip + 2, ip + 3);
		925	encode_data ((const char *)ip, sizeof (ip));
		926	}
		927	break;
		928
		929	case BER_TYPE_UCS2:
		930	encode_ucs (data, 2);
		931	break;
		932
		933	case BER_TYPE_UCS4:
		934	encode_ucs (data, 4);
		935	break;
		936
		937	case BER_TYPE_REAL:
		938	case BER_TYPE_CROAK:
		939	default:
		940	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
		941	}
		942
		943	}
		944
		945	/////////////////////////////////////////////////////////////////////////////
		946
415	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS	947	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS
416		948
417	PROTOTYPES: ENABLE	949	PROTOTYPES: ENABLE
418		950
419	BOOT:	951	BOOT:
420	{	952	{
421	HV *stash = gv_stashpv ("Convert::BER::XS", 1);	953	HV *stash = gv_stashpv ("Convert::BER::XS", 1);
		954
		955	profile_stash = gv_stashpv ("Convert::BER::XS::Profile", 1);
422		956
423	static const struct {	957	static const struct {
424	const char *name;	958	const char *name;
425	IV iv;	959	IV iv;
426	} *civ, const_iv[] = {	960	} *civ, const_iv[] = {
427	{ "ASN_BOOLEAN", ASN_BOOLEAN },	961	#define const_iv(name) { # name, name },
428	{ "ASN_INTEGER32", ASN_INTEGER32 },	962	const_iv (ASN_BOOLEAN)
429	{ "ASN_BIT_STRING", ASN_BIT_STRING },	963	const_iv (ASN_INTEGER32)
430	{ "ASN_OCTET_STRING", ASN_OCTET_STRING },	964	const_iv (ASN_BIT_STRING)
431	{ "ASN_NULL", ASN_NULL },	965	const_iv (ASN_OCTET_STRING)
432	{ "ASN_OBJECT_IDENTIFIER", ASN_OBJECT_IDENTIFIER },	966	const_iv (ASN_NULL)
433	{ "ASN_TAG_BER", ASN_TAG_BER },	967	const_iv (ASN_OBJECT_IDENTIFIER)
434	{ "ASN_TAG_MASK", ASN_TAG_MASK },	968	const_iv (ASN_OBJECT_DESCRIPTOR)
435	{ "ASN_CONSTRUCTED", ASN_CONSTRUCTED },	969	const_iv (ASN_OID)
436	{ "ASN_UNIVERSAL", ASN_UNIVERSAL >> ASN_CLASS_SHIFT },	970	const_iv (ASN_EXTERNAL)
437	{ "ASN_APPLICATION", ASN_APPLICATION >> ASN_CLASS_SHIFT },	971	const_iv (ASN_REAL)
438	{ "ASN_CONTEXT", ASN_CONTEXT >> ASN_CLASS_SHIFT },	972	const_iv (ASN_SEQUENCE)
439	{ "ASN_PRIVATE", ASN_PRIVATE >> ASN_CLASS_SHIFT },	973	const_iv (ASN_ENUMERATED)
440	{ "ASN_CLASS_MASK", ASN_CLASS_MASK },	974	const_iv (ASN_EMBEDDED_PDV)
441	{ "ASN_CLASS_SHIFT", ASN_CLASS_SHIFT },	975	const_iv (ASN_UTF8_STRING)
442	{ "ASN_SEQUENCE", ASN_SEQUENCE },	976	const_iv (ASN_RELATIVE_OID)
443	{ "ASN_IPADDRESS", ASN_IPADDRESS },	977	const_iv (ASN_SET)
444	{ "ASN_COUNTER32", ASN_COUNTER32 },	978	const_iv (ASN_NUMERIC_STRING)
445	{ "ASN_UNSIGNED32", ASN_UNSIGNED32 },	979	const_iv (ASN_PRINTABLE_STRING)
446	{ "ASN_TIMETICKS", ASN_TIMETICKS },	980	const_iv (ASN_TELETEX_STRING)
447	{ "ASN_OPAQUE", ASN_OPAQUE },	981	const_iv (ASN_T61_STRING)
448	{ "ASN_COUNTER64", ASN_COUNTER64 },	982	const_iv (ASN_VIDEOTEX_STRING)
		983	const_iv (ASN_IA5_STRING)
		984	const_iv (ASN_ASCII_STRING)
		985	const_iv (ASN_UTC_TIME)
		986	const_iv (ASN_GENERALIZED_TIME)
		987	const_iv (ASN_GRAPHIC_STRING)
		988	const_iv (ASN_VISIBLE_STRING)
		989	const_iv (ASN_ISO646_STRING)
		990	const_iv (ASN_GENERAL_STRING)
		991	const_iv (ASN_UNIVERSAL_STRING)
		992	const_iv (ASN_CHARACTER_STRING)
		993	const_iv (ASN_BMP_STRING)
449		994
450	{ "BER_CLASS" , BER_CLASS },	995	const_iv (ASN_UNIVERSAL)
451	{ "BER_TAG" , BER_TAG },	996	const_iv (ASN_APPLICATION)
452	{ "BER_CONSTRUCTED", BER_CONSTRUCTED },	997	const_iv (ASN_CONTEXT)
453	{ "BER_DATA" , BER_DATA },	998	const_iv (ASN_PRIVATE)
		999
		1000	const_iv (BER_CLASS)
		1001	const_iv (BER_TAG)
		1002	const_iv (BER_CONSTRUCTED)
		1003	const_iv (BER_DATA)
		1004
		1005	const_iv (BER_TYPE_BYTES)
		1006	const_iv (BER_TYPE_UTF8)
		1007	const_iv (BER_TYPE_UCS2)
		1008	const_iv (BER_TYPE_UCS4)
		1009	const_iv (BER_TYPE_INT)
		1010	const_iv (BER_TYPE_OID)
		1011	const_iv (BER_TYPE_RELOID)
		1012	const_iv (BER_TYPE_NULL)
		1013	const_iv (BER_TYPE_BOOL)
		1014	const_iv (BER_TYPE_REAL)
		1015	const_iv (BER_TYPE_IPADDRESS)
		1016	const_iv (BER_TYPE_CROAK)
		1017
		1018	const_iv (SNMP_IPADDRESS)
		1019	const_iv (SNMP_COUNTER32)
		1020	const_iv (SNMP_UNSIGNED32)
		1021	const_iv (SNMP_TIMETICKS)
		1022	const_iv (SNMP_OPAQUE)
		1023	const_iv (SNMP_COUNTER64)
454	};	1024	};
455		1025
456	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1026	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));	1027	newCONSTSUB (stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
458	}	1028	}
459		1029
460	SV *	1030	SV *
461	ber_decode (SV *ber)	1031	ber_decode (SV ber, SV profile = &PL_sv_undef)
462	CODE:	1032	CODE:
463	{	1033	{
		1034	cur_profile = SvPROFILE (profile);
		1035	STRLEN len;
464	buf = SvPVbyte (ber, len);	1036	buf = (U8 *)SvPVbyte (ber, len);
465	cur = buf;	1037	cur = buf;
466	rem = len;	1038	end = buf + len;
467		1039
468	RETVAL = decode_ber ();	1040	RETVAL = decode_ber ();
469	}	1041	}
470	OUTPUT: RETVAL	1042	OUTPUT: RETVAL
471		1043
472	void	1044	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)	1045	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:	1046	PPCODE:
476	{	1047	{
477	if (!SvOK (tuple))	1048	if (!SvOK (tuple))
478	XSRETURN_NO;	1049	XSRETURN_NO;
479		1050
480	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1051	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)
481	croak ("ber_seq: tuple must be ber tuple (array-ref)");	1052	croak ("ber_is: tuple must be BER tuple (array-ref)");
482		1053
483	AV av = (AV )SvRV (tuple);	1054	AV av = (AV )SvRV (tuple);
484		1055
485	XPUSHs (	1056	XPUSHs (
486	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS ]) == SvIV (klass))	1057	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS ]) == SvIV (klass))
487	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))	1058	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))
488	&& (!SvOK (constructed) \|\| !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) == !SvIV (constructed))	1059	&& (!SvOK (constructed) \|\| !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) == !SvIV (constructed))
489	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))	1060	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))
490	? &PL_sv_yes : &PL_sv_no);	1061	? &PL_sv_yes : &PL_sv_undef);
491	}	1062	}
492		1063
493	void	1064	void
494	ber_is_seq (SV *tuple)	1065	ber_is_seq (SV *tuple)
495	PROTOTYPE: $
496	PPCODE:	1066	PPCODE:
497	{	1067	{
498	if (!SvOK (tuple))	1068	if (!SvOK (tuple))
499	XSRETURN_UNDEF;	1069	XSRETURN_UNDEF;
500		1070
501	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1071	AV *av = ber_tuple (tuple);
502	croak ("ber_seq: tuple must be ber tuple (array-ref)");
503
504	AV av = (AV )SvRV (tuple);
505		1072
506	XPUSHs (	1073	XPUSHs (
507	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1074	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL
508	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE	1075	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE
509	&& SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1076	&& SvIV (AvARRAY (av)[BER_CONSTRUCTED])
510	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);	1077	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);
511	}	1078	}
512		1079
513	void	1080	void
514	ber_is_i32 (SV *tuple, IV value)	1081	ber_is_i32 (SV tuple, SV value = &PL_sv_undef)
515	PROTOTYPE: $$
516	PPCODE:	1082	PPCODE:
517	{	1083	{
518	if (!SvOK (tuple))	1084	if (!SvOK (tuple))
519	XSRETURN_NO;	1085	XSRETURN_NO;
520		1086
521	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1087	AV *av = ber_tuple (tuple);
522	croak ("ber_seq: tuple must be ber tuple (array-ref)");
523		1088
524	AV av = (AV )SvRV (tuple);	1089	IV data = SvIV (AvARRAY (av)[BER_DATA]);
525		1090
526	XPUSHs (	1091	XPUSHs (
527	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1092	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL
528	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER32	1093	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER32
529	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1094	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])
530	&& SvIV (AvARRAY (av)[BER_DATA ]) == value	1095	&& (!SvOK (value) \|\| data == SvIV (value))
531	? &PL_sv_yes : &PL_sv_no);	1096	? sv_2mortal (data ? newSViv (data) : newSVpv ("0 but true", 0))
		1097	: &PL_sv_undef);
532	}	1098	}
533		1099
534	void	1100	void
535	ber_is_oid (SV tuple, SV oid)	1101	ber_is_oid (SV tuple, SV oid = &PL_sv_undef)
536	PROTOTYPE: $$
537	PPCODE:	1102	PPCODE:
538	{	1103	{
539	if (!SvOK (tuple))	1104	if (!SvOK (tuple))
540	XSRETURN_NO;	1105	XSRETURN_NO;
541		1106
542	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1107	AV *av = ber_tuple (tuple);
543	croak ("ber_seq: tuple must be ber tuple (array-ref)");
544
545	AV av = (AV )SvRV (tuple);
546		1108
547	XPUSHs (	1109	XPUSHs (
548	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1110	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL
549	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER	1111	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER
550	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1112	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])
551	&& sv_eq (AvARRAY (av)[BER_DATA], oid)	1113	&& (!SvOK (oid) \|\| sv_eq (AvARRAY (av)[BER_DATA], oid))
552	? &PL_sv_yes : &PL_sv_no);	1114	? newSVsv (AvARRAY (av)[BER_DATA]) : &PL_sv_undef);
553	}	1115	}
554		1116
		1117	#############################################################################
		1118
		1119	void
		1120	ber_encode (SV tuple, SV profile = &PL_sv_undef)
		1121	PPCODE:
		1122	{
		1123	cur_profile = SvPROFILE (profile);
		1124	buf_sv = sv_2mortal (NEWSV (0, 256));
		1125	SvPOK_only (buf_sv);
		1126	set_buf (buf_sv);
		1127
		1128	encode_ber (tuple);
		1129
		1130	SvCUR_set (buf_sv, cur - buf);
		1131	XPUSHs (buf_sv);
		1132	}
		1133
		1134	SV *
		1135	ber_i32 (IV iv)
		1136	CODE:
		1137	{
		1138	AV *av = newAV ();
		1139	av_fill (av, BER_ARRAYSIZE - 1);
		1140	AvARRAY (av)[BER_CLASS ] = newSVcacheint (ASN_UNIVERSAL);
		1141	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_INTEGER32);
		1142	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (0);
		1143	AvARRAY (av)[BER_DATA ] = newSViv (iv);
		1144	RETVAL = newRV_noinc ((SV *)av);
		1145	}
		1146	OUTPUT: RETVAL
		1147
		1148	# TODO: not arrayref, but elements?
		1149	SV *
		1150	ber_seq (SV *arrayref)
		1151	CODE:
		1152	{
		1153	AV *av = newAV ();
		1154	av_fill (av, BER_ARRAYSIZE - 1);
		1155	AvARRAY (av)[BER_CLASS ] = newSVcacheint (ASN_UNIVERSAL);
		1156	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_SEQUENCE);
		1157	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (1);
		1158	AvARRAY (av)[BER_DATA ] = newSVsv (arrayref);
		1159	RETVAL = newRV_noinc ((SV *)av);
		1160	}
		1161	OUTPUT: RETVAL
		1162
		1163	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS::Profile
		1164
		1165	SV *
		1166	new (SV *klass)
		1167	CODE:
		1168	RETVAL = profile_new ();
		1169	OUTPUT: RETVAL
		1170
		1171	void
		1172	set (SV *profile, int klass, int tag, int type)
		1173	CODE:
		1174	profile_set (SvPROFILE (profile), klass, tag, type);
		1175
		1176	IV
		1177	get (SV *profile, int klass, int tag)
		1178	CODE:
		1179	RETVAL = profile_lookup (SvPROFILE (profile), klass, tag);
		1180	OUTPUT: RETVAL
		1181
		1182	void
		1183	_set_default (SV *profile)
		1184	CODE:
		1185	default_profile = SvPROFILE (profile);
		1186
		1187

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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 1.11 by root, Sat Apr 20 12:25:23 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 1.11 by root, Sat Apr 20 12:25:23 2019 UTC