[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 1.6 by root, Sat Apr 20 01:03:59 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, //X
		16	ASN_OBJECT_DESCRIPTOR = 0x07, //X
		17	ASN_EXTERNAL = 0x08, //X
		18	ASN_REAL = 0x09, //X
		19	ASN_ENUMERATED = 0x0a, //X
		20	ASN_EMBEDDED_PDV = 0x0b, //X
		21	ASN_UTF8_STRING = 0x0c, //X
		22	ASN_RELATIVE_OID = 0x0d, //X
15	ASN_SEQUENCE = 0x10,	23	ASN_SEQUENCE = 0x10,
		24	ASN_SET = 0x11, //X
		25	ASN_NUMERIC_STRING = 0x12, //X
		26	ASN_PRINTABLE_STRING = 0x13, //X
		27	ASN_TELETEX_STRING = 0x14, //X
		28	ASN_T61_STRING = 0x14, //X
		29	ASN_VIDEOTEX_STRING = 0x15, //X
		30	ASN_IA5_STRING = 0x16, //X
		31	ASN_ASCII_STRING = 0x16, //X
		32	ASN_UTC_TIME = 0x17, //X
		33	ASN_GENERALIZED_TIME = 0x18, //X
		34	ASN_GRAPHIC_STRING = 0x19, //X
		35	ASN_VISIBLE_STRING = 0x1a, //X
		36	ASN_ISO646_STRING = 0x1a, //X
		37	ASN_GENERAL_STRING = 0x1b, //X
		38	ASN_UNIVERSAL_STRING = 0x1c, //X
		39	ASN_CHARACTER_STRING = 0x1d, //X
		40	ASN_BMP_STRING = 0x1e, //X
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 __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];
53		111
54	// 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
55	static SV *newSVcacheint (int val)	113	static SV *newSVcacheint (int val)
56	{	114	{
57	static SV *cache[32];
58
59	if (val < 0 \|\| val >= sizeof (cache))	115	if (expect_false (val < 0 \|\| val >= sizeof (sviv_cache)))
60	return newSViv (val);	116	return newSViv (val);
61		117
62	if (!cache [val])	118	if (expect_false (!sviv_cache [val]))
63	{	119	{
64	cache [val] = newSVuv (val);	120	sviv_cache [val] = newSVuv (val);
65	SvREADONLY_on (cache [val]);	121	SvREADONLY_on (sviv_cache [val]);
66	}	122	}
67		123
68	return SvREFCNT_inc_NN (cache [val]);	124	return SvREFCNT_inc_NN (sviv_cache [val]);
69	}	125	}
70		126
71	/////////////////////////////////////////////////////////////////////////////	127	/////////////////////////////////////////////////////////////////////////////
72		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
73	static void	209	static void
74	error (const char *errmsg)	210	error (const char *errmsg)
75	{	211	{
76	croak ("%s at offset 0x%04x", errmsg, cur - buf);	212	croak ("%s at offset 0x%04x", errmsg, cur - buf);
77	}	213	}
78		214
79	static int	215	static void
80	need (int count)	216	want (UV count)
81	{	217	{
82	if (count < 0 \|\| (int)rem < count)	218	if (expect_false ((uintptr_t)(end - cur) < count))
83	{
84	error ("unexpected end of message buffer");	219	error ("unexpected end of message buffer");
85	return 0;
86	}
87
88	return 1;
89	}	220	}
90		221
		222	// get_* functions fetch something from the buffer
		223	// decode_* functions use get_* fun ctions to decode ber values
		224
		225	// get n octets
91	static U8 *	226	static U8 *
92	getn (int count, const U8 *errres)	227	get_n (UV count)
93	{	228	{
94	if (!need (count))	229	want (count);
95	return (U8 *)errres;
96
97	U8 *res = cur;	230	U8 *res = cur;
98
99	cur += count;	231	cur += count;
100	rem -= count;
101
102	return res;	232	return res;
103	}	233	}
104		234
		235	// get single octet
105	static U8	236	static U8
106	get8 (void)	237	get_u8 (void)
107	{	238	{
108	if (rem <= 0)	239	if (cur == end)
109	{
110	error ("unexpected end of message buffer");	240	error ("unexpected end of message buffer");
111	return 0;
112	}
113		241
114	rem--;
115	return *cur++;	242	return *cur++;
116	}	243	}
117		244
		245	// get ber-encoded integer (i.e. pack "w")
118	static U32	246	static U32
119	getb (void)	247	get_w (void)
120	{	248	{
121	U32 res = 0;	249	U32 res = 0;
122		250
123	for (;;)	251	for (;;)
124	{	252	{
125	U8 c = get8 ();	253	U8 c = get_u8 ();
126	res = (res << 7) \| (c & 0x7f);	254	res = (res << 7) \| (c & 0x7f);
127		255
128	if (!(c & 0x80))	256	if (!(c & 0x80))
129	return res;	257	return res;
130	}	258	}
131	}	259	}
132		260
133	static U32	261	static U32
134	process_length (void)	262	get_length (void)
135	{	263	{
136	U32 res = get8 ();	264	U32 res = get_u8 ();
137		265
138	if (res & 0x80)	266	if (res & 0x80)
139	{	267	{
140	int cnt = res & 0x7f;	268	int cnt = res & 0x7f;
141	res = 0;	269	res = 0;
…		…
148		276
149	default:	277	default:
150	error ("ASN.1 length too long");	278	error ("ASN.1 length too long");
151	return 0;	279	return 0;
152		280
153	case 4: res = (res << 8) \| get8 ();	281	case 4: res = (res << 8) \| get_u8 ();
154	case 3: res = (res << 8) \| get8 ();	282	case 3: res = (res << 8) \| get_u8 ();
155	case 2: res = (res << 8) \| get8 ();	283	case 2: res = (res << 8) \| get_u8 ();
156	case 1: res = (res << 8) \| get8 ();	284	case 1: res = (res << 8) \| get_u8 ();
157	}	285	}
158	}	286	}
159		287
160	return res;	288	return res;
161	}	289	}
162		290
163	static U32	291	static SV *
164	process_integer32 (void)	292	decode_int ()
165	{	293	{
166	U32 length = process_length ();	294	int len = get_length ();
167		295
168	if (length <= 0)	296	if (len <= 0)
169	{	297	{
170	error ("INTEGER32 length equal to zero");	298	error ("integer length equal to zero");
171	return 0;	299	return 0;
172	}	300	}
173		301
174	U8 *data = getn (length, 0);	302	U8 *data = get_n (len);
175		303
176	if (!data)	304	int negative = data [0] & 0x80;
177	return 0;
178		305
179	if (length > 5 \|\| (length > 4 && data [0]))	306	UV val = negative ? -1 : 0; // copy signbit to all bits
180	{
181	error ("INTEGER32 length too long");
182	return 0;
183	}
184		307
185	U32 res = data [0] & 0x80 ? 0xffffffff : 0;	308	do
186
187	while (length--)
188	res = (res << 8) \| *data++;	309	val = (val << 8) \| *data++;
		310	while (--len);
189		311
190	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);
191	}	315	}
192		316
193	static SV *	317	static SV *
194	process_integer32_sv (void)	318	decode_data (void)
195	{	319	{
196	return newSViv ((I32)process_integer32 ());	320	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);	321	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);	322	return newSVpvn ((char *)data, len);
264	}	323	}
265		324
		325	// gelper for decode_object_identifier
266	static char *	326	static char *
267	write_uv (char *buf, U32 u)	327	write_uv (char *buf, U32 u)
268	{	328	{
269	// 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)
270	if (u < 10)	330	if (expect_true (u < 10))
271	*buf++ = u + '0';	331	*buf++ = u + '0';
272	else	332	else
273	{	333	{
274	char *beg = buf;	334	char *beg = buf;
275		335
…		…
291		351
292	return buf;	352	return buf;
293	}	353	}
294		354
295	static SV *	355	static SV *
296	process_object_identifier_sv (void)	356	decode_oid (int relative)
297	{	357	{
298	U32 length = process_length ();	358	U32 len = get_length ();
299		359
300	if (length <= 0)	360	if (len <= 0)
301	{	361	{
302	error ("OBJECT IDENTIFIER length equal to zero");	362	error ("OBJECT IDENTIFIER length equal to zero");
303	return &PL_sv_undef;	363	return &PL_sv_undef;
304	}	364	}
305		365
306	U8 *end = cur + length;	366	U8 *end = cur + len;
307	U32 w = getb ();	367	U32 w = get_w ();
308		368
309	static char oid[MAX_OID_STRLEN]; // must be static	369	static char oid[MAX_OID_STRLEN]; // must be static
310	char *app = oid;	370	char *app = oid;
311		371
		372	if (relative)
		373	app = write_uv (app, w);
		374	else
		375	{
312	app = write_uv (app, (U8)w / 40);	376	app = write_uv (app, (U8)w / 40);
313	*app++ = '.';	377	*app++ = '.';
314	app = write_uv (app, (U8)w % 40);	378	app = write_uv (app, (U8)w % 40);
		379	}
315		380
316	// we assume an oid component is never > 64 bytes	381	// we assume an oid component is never > 64 bytes
317	while (cur < end && oid + sizeof (oid) - app > 64)	382	while (cur < end && oid + sizeof (oid) - app > 64)
318	{	383	{
319	w = getb ();	384	w = get_w ();
320	*app++ = '.';	385	*app++ = '.';
321	app = write_uv (app, w);	386	app = write_uv (app, w);
322	}	387	}
323		388
324	return newSVpvn (oid, app - oid);	389	return newSVpvn (oid, app - oid);
325	}	390	}
326		391
327	static SV *	392	static SV *
328	ber_decode ()	393	decode_ber ()
329	{	394	{
330	int identifier = get8 ();	395	int identifier = get_u8 ();
331		396
332	SV *res;	397	SV *res;
333		398
334	int constructed = identifier & ASN_CONSTRUCTED;	399	int constructed = identifier & ASN_CONSTRUCTED;
335	int klass = identifier & ASN_CLASS_MASK;	400	int klass = (identifier & ASN_CLASS_MASK) >> ASN_CLASS_SHIFT;
336	int tag = identifier & ASN_TAG_MASK;	401	int tag = identifier & ASN_TAG_MASK;
337		402
338	if (tag == ASN_TAG_BER)	403	if (tag == ASN_TAG_BER)
339	tag = getb ();	404	tag = get_w ();
340		405
341	if (tag == ASN_TAG_BER)	406	if (tag == ASN_TAG_BER)
342	tag = getb ();	407	tag = get_w ();
343		408
344	if (constructed)	409	if (constructed)
345	{	410	{
346	U32 len = process_length ();	411	U32 len = get_length ();
347	U32 seqend = (cur - buf) + len;	412	U32 seqend = (cur - buf) + len;
348	AV av = (AV )sv_2mortal ((SV *)newAV ());	413	AV av = (AV )sv_2mortal ((SV *)newAV ());
349		414
350	while (cur < buf + seqend)	415	while (cur < buf + seqend)
351	av_push (av, ber_decode ());	416	av_push (av, decode_ber ());
352		417
353	if (cur > buf + seqend)	418	if (cur > buf + seqend)
354	croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend);	419	croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend);
355		420
356	res = newRV_inc ((SV *)av);	421	res = newRV_inc ((SV *)av);
357	}	422	}
358	else	423	else
359	switch (identifier)	424	switch (profile_lookup (cur_profile, klass, tag))
360	{	425	{
361	case ASN_NULL:	426	case BER_TYPE_NULL:
362	res = &PL_sv_undef;	427	res = &PL_sv_undef;
363	break;	428	break;
364		429
365	case ASN_OBJECT_IDENTIFIER:	430	case BER_TYPE_BOOL:
366	res = process_object_identifier_sv ();	431	{
367	break;	432	U32 len = get_length ();
368		433
369	case ASN_INTEGER32:	434	if (len != 1)
370	res = process_integer32_sv ();	435	croak ("BER_TYPE_BOOLEAN type with invalid length %d encountered", len);
371	break;
372		436
373	case ASN_APPLICATION \| ASN_UNSIGNED32:	437	res = newSVcacheint (get_u8 () ? 0 : 1);
374	case ASN_APPLICATION \| ASN_COUNTER32:	438	}
375	case ASN_APPLICATION \| ASN_TIMETICKS:
376	res = process_unsigned32_sv ();
377	break;	439	break;
378		440
379	#if 0 // handled by default case	441	case BER_TYPE_OID:
380	case ASN_OCTET_STRING:	442	res = decode_oid (0);
381	case ASN_APPLICATION \| ASN_IPADDRESS:
382	case ASN_APPLICATION \| ASN_OPAQUE:
383	res = process_octet_string_sv ();
384	break;	443	break;
385	#endif
386		444
387	case ASN_APPLICATION \| ASN_COUNTER64:	445	case BER_TYPE_RELOID:
388	res = process_integer64_sv ();	446	res = decode_oid (1);
389	break;	447	break;
390		448
		449	case BER_TYPE_INT:
		450	res = decode_int ();
		451	break;
		452
		453	case BER_TYPE_UTF8:
		454	res = decode_data ();
		455	SvUTF8_on (res);
		456	break;
		457
		458	case BER_TYPE_BYTES:
		459	res = decode_data ();
		460	break;
		461
		462	case BER_TYPE_IPADDRESS:
		463	{
		464	U32 len = get_length ();
		465
		466	if (len != 4)
		467	croak ("BER_TYPE_IPADDRESS type with invalid length %d encountered", len);
		468
		469	U8 c1 = get_u8 ();
		470	U8 c2 = get_u8 ();
		471	U8 c3 = get_u8 ();
		472	U8 c4 = get_u8 ();
		473
		474	res = newSVpvf ("%d.%d.%d.%d", c1, c2, c3, c4);
		475	}
		476	break;
		477
		478	case BER_TYPE_REAL:
		479	case BER_TYPE_UCS2:
		480	case BER_TYPE_UCS4:
		481	case BER_TYPE_CROAK:
391	default:	482	default:
392	res = process_octet_string_sv ();	483	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
393	break;
394	}	484	}
395		485
396	AV *av = newAV ();	486	AV *av = newAV ();
397	av_fill (av, BER_ARRAYSIZE - 1);	487	av_fill (av, BER_ARRAYSIZE - 1);
398	AvARRAY (av)[BER_CLASS ] = newSVcacheint (klass >> ASN_CLASS_SHIFT);	488	AvARRAY (av)[BER_CLASS ] = newSVcacheint (klass);
399	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);	489	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);
400	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (constructed ? 1 : 0);	490	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (constructed ? 1 : 0);
401	AvARRAY (av)[BER_DATA ] = res;	491	AvARRAY (av)[BER_DATA ] = res;
402		492
403	return newRV_noinc ((SV *)av);	493	return newRV_noinc ((SV *)av);
404	}	494	}
405		495
		496	/////////////////////////////////////////////////////////////////////////////
		497	// encoder
		498
		499	/* adds two STRLENs together, slow, and with paranoia */
		500	static STRLEN
		501	strlen_sum (STRLEN l1, STRLEN l2)
		502	{
		503	size_t sum = l1 + l2;
		504
		505	if (sum < (size_t)l2 \|\| sum != (size_t)(STRLEN)sum)
		506	croak ("JSON::XS: string size overflow");
		507
		508	return sum;
		509	}
		510
		511	static void
		512	set_buf (SV *sv)
		513	{
		514	STRLEN len;
		515	buf_sv = sv;
		516	buf = SvPVbyte (buf_sv, len);
		517	cur = buf;
		518	end = buf + len;
		519	}
		520
		521	/* similar to SvGROW, but somewhat safer and guarantees exponential realloc strategy */
		522	static char *
		523	my_sv_grow (SV *sv, size_t len1, size_t len2)
		524	{
		525	len1 = strlen_sum (len1, len2);
		526	len1 = strlen_sum (len1, len1 >> 1);
		527
		528	if (len1 > 4096 - 24)
		529	len1 = (len1 \| 4095) - 24;
		530
		531	return SvGROW (sv, len1);
		532	}
		533
		534	static void
		535	need (STRLEN len)
		536	{
		537	if (expect_false ((uintptr_t)(end - cur) < len))
		538	{
		539	STRLEN pos = cur - buf;
		540	buf = my_sv_grow (buf_sv, pos, len);
		541	cur = buf + pos;
		542	end = buf + SvLEN (buf_sv) - 1;
		543	}
		544	}
		545
		546	static void
		547	put_u8 (int val)
		548	{
		549	need (1);
		550	*cur++ = val;
		551	}
		552
		553	static void
		554	put_w_nocheck (U32 val)
		555	{
		556	cur = (val >> 7 4) \| 0x80; cur += val >= (1 << (7 * 4));
		557	cur = (val >> 7 3) \| 0x80; cur += val >= (1 << (7 * 3));
		558	cur = (val >> 7 2) \| 0x80; cur += val >= (1 << (7 * 2));
		559	cur = (val >> 7 1) \| 0x80; cur += val >= (1 << (7 * 1));
		560	*cur = val & 0x7f; cur += 1;
		561	}
		562
		563	static void
		564	put_w (U32 val)
		565	{
		566	need (5); // we only handle up to 5 bytes
		567
		568	put_w_nocheck (val);
		569	}
		570
		571	static U8 *
		572	put_length_at (U32 val, U8 *cur)
		573	{
		574	if (val < 0x7fU)
		575	*cur++ = val;
		576	else
		577	{
		578	U8 *lenb = cur++;
		579
		580	cur = val >> 24; cur += cur > 0;
		581	cur = val >> 16; cur += cur > 0;
		582	cur = val >> 8; cur += cur > 0;
		583	*cur = val ; cur += 1;
		584
		585	*lenb = 0x80 + cur - lenb - 1;
		586	}
		587
		588	return cur;
		589	}
		590
		591	static void
		592	put_length (U32 val)
		593	{
		594	need (5);
		595	cur = put_length_at (val, cur);
		596	}
		597
		598	// return how many bytes the encoded length requires
		599	static int length_length (U32 val)
		600	{
		601	return val < 0x7fU
		602	? 1
		603	: 2 + (val > 0xffU) + (val > 0xffffU) + (val > 0xffffffU);
		604	}
		605
		606	static void
		607	encode_data (const char *ptr, STRLEN len)
		608	{
		609	put_length (len);
		610	need (len);
		611	memcpy (cur, ptr, len);
		612	cur += len;
		613	}
		614
		615	static void
		616	encode_uv (UV uv)
		617	{
		618	}
		619
		620	static void
		621	encode_int (SV *sv)
		622	{
		623	need (8 + 1 + 1); // 64 bit + length + extra 0
		624
		625	if (expect_false (!SvIOK (sv)))
		626	sv_2iv_flags (sv, 0);
		627
		628	U8 *lenb = cur++;
		629
		630	if (SvIOK_notUV (sv))
		631	{
		632	IV iv = SvIVX (sv);
		633
		634	if (expect_false (iv < 0))
		635	{
		636	// get two's complement bit pattern - works even on hypothetical non-2c machines
		637	UV uv = iv;
		638
		639	#if UVSIZE > 4
		640	*cur = uv >> 56; cur += !!(~uv & 0xff80000000000000U);
		641	*cur = uv >> 48; cur += !!(~uv & 0xffff800000000000U);
		642	*cur = uv >> 40; cur += !!(~uv & 0xffffff8000000000U);
		643	*cur = uv >> 32; cur += !!(~uv & 0xffffffff80000000U);
		644	#endif
		645	*cur = uv >> 24; cur += !!(~uv & 0xffffffffff800000U);
		646	*cur = uv >> 16; cur += !!(~uv & 0xffffffffffff8000U);
		647	*cur = uv >> 8; cur += !!(~uv & 0xffffffffffffff80U);
		648	*cur = uv ; cur += 1;
		649
		650	*lenb = cur - lenb - 1;
		651
		652	return;
		653	}
		654	}
		655
		656	UV uv = SvUV (sv);
		657
		658	// prepend an extra 0 if the high bit is 1
		659	cur = 0; cur += !!(uv & ((UV)1 << (UVSIZE 8 - 1)));
		660
		661	#if UVSIZE > 4
		662	*cur = uv >> 56; cur += !!(uv & 0xff80000000000000U);
		663	*cur = uv >> 48; cur += !!(uv & 0xffff800000000000U);
		664	*cur = uv >> 40; cur += !!(uv & 0xffffff8000000000U);
		665	*cur = uv >> 32; cur += !!(uv & 0xffffffff80000000U);
		666	#endif
		667	*cur = uv >> 24; cur += !!(uv & 0xffffffffff800000U);
		668	*cur = uv >> 16; cur += !!(uv & 0xffffffffffff8000U);
		669	*cur = uv >> 8; cur += !!(uv & 0xffffffffffffff80U);
		670	*cur = uv ; cur += 1;
		671
		672	*lenb = cur - lenb - 1;
		673	}
		674
		675	// we don't know the length yet, so we optimistically
		676	// assume the length will need one octet later. if that
		677	// turns out to be wrong, we memove as needed.
		678	// mark the beginning
		679	static STRLEN
		680	len_fixup_mark ()
		681	{
		682	return cur++ - buf;
		683	}
		684
		685	// patch up the length
		686	static void
		687	len_fixup (STRLEN mark)
		688	{
		689	STRLEN reallen = (cur - buf) - mark - 1;
		690	int lenlen = length_length (reallen);
		691
		692	if (expect_false (lenlen > 1))
		693	{
		694	// bad luck, we have to shift the bytes to make room for the length
		695	need (5);
		696	memmove (buf + mark + lenlen, buf + mark + 1, reallen);
		697	cur += lenlen - 1;
		698	}
		699
		700	put_length_at (reallen, buf + mark);
		701	}
		702
		703	static char *
		704	read_uv (char str, UV uv)
		705	{
		706	UV r = 0;
		707
		708	while (*str >= '0')
		709	r = r * 10 + *str++ - '0';
		710
		711	*uv = r;
		712
		713	str += !!*str; // advance over any non-zero byte
		714
		715	return str;
		716	}
		717
		718	static void
		719	encode_oid (SV *oid, int relative)
		720	{
		721	STRLEN len;
		722	char *ptr = SvPV (oid, len); // utf8 vs. bytes does not matter
		723
		724	// we need at most as many octets as the string form
		725	need (len + 1);
		726	STRLEN mark = len_fixup_mark ();
		727
		728	UV w1, w2;
		729
		730	if (!relative)
		731	{
		732	ptr = read_uv (ptr, &w1);
		733	ptr = read_uv (ptr, &w2);
		734
		735	put_w_nocheck (w1 * 40 + w2);
		736	}
		737
		738	while (*ptr)
		739	{
		740	ptr = read_uv (ptr, &w1);
		741	put_w_nocheck (w1);
		742	}
		743
		744	len_fixup (mark);
		745	}
		746
		747	// check whether an SV is a BER tuple and returns its AV *
		748	static AV *
		749	ber_tuple (SV *tuple)
		750	{
		751	SV *rv;
		752
		753	if (expect_false (!SvROK (tuple) \|\| SvTYPE ((rv = SvRV (tuple))) != SVt_PVAV))
		754	croak ("BER tuple must be array-reference");
		755
		756	if (expect_false (SvRMAGICAL (rv)))
		757	croak ("BER tuple must not be tied");
		758
		759	if (expect_false (AvFILL ((AV *)rv) != BER_ARRAYSIZE - 1))
		760	croak ("BER tuple must contain exactly %d elements, not %d", BER_ARRAYSIZE, AvFILL ((AV *)rv) + 1);
		761
		762	return (AV *)rv;
		763	}
		764
		765	static void
		766	encode_ber (SV *tuple)
		767	{
		768	AV *av = ber_tuple (tuple);
		769
		770	int klass = SvIV (AvARRAY (av)[BER_CLASS]);
		771	int tag = SvIV (AvARRAY (av)[BER_TAG]);
		772	int constructed = SvIV (AvARRAY (av)[BER_CONSTRUCTED]) ? ASN_CONSTRUCTED : 0;
		773	SV *data = AvARRAY (av)[BER_DATA];
		774
		775	int identifier = (klass << ASN_CLASS_SHIFT) \| constructed;
		776
		777	if (expect_false (tag >= ASN_TAG_BER))
		778	{
		779	put_u8 (identifier \| ASN_TAG_BER);
		780	put_w (tag);
		781	}
		782	else
		783	put_u8 (identifier \| tag);
		784
		785	if (constructed)
		786	{
		787	// we optimistically assume that only one length byte is needed
		788	// and adjust later
		789	need (1);
		790	STRLEN mark = len_fixup_mark ();
		791
		792	if (expect_false (!SvROK (data) \|\| SvTYPE (SvRV (data)) != SVt_PVAV))
		793	croak ("BER constructed data must be array-reference");
		794
		795	AV av = (AV )SvRV (data);
		796	int fill = AvFILL (av);
		797
		798	if (expect_false (SvRMAGICAL (av)))
		799	croak ("BER constructed data must not be tied");
		800
		801	for (int i = 0; i <= fill; ++i)
		802	encode_ber (AvARRAY (av)[i]);
		803
		804	len_fixup (mark);
		805	}
		806	else
		807	switch (profile_lookup (cur_profile, klass, tag))
		808	{
		809	case BER_TYPE_NULL:
		810	put_length (0);
		811	break;
		812
		813	case BER_TYPE_BOOL:
		814	put_length (1);
		815	put_u8 (SvTRUE (data) ? 0xff : 0x00);
		816	break;
		817
		818	case BER_TYPE_OID:
		819	encode_oid (data, 0);
		820	break;
		821
		822	case BER_TYPE_RELOID:
		823	encode_oid (data, 1);
		824	break;
		825
		826	case BER_TYPE_INT:
		827	encode_int (data);
		828	break;
		829
		830	case BER_TYPE_BYTES:
		831	{
		832	STRLEN len;
		833	const char *ptr = SvPVbyte (data, len);
		834	encode_data (ptr, len);
		835	}
		836	break;
		837
		838	case BER_TYPE_UTF8:
		839	{
		840	STRLEN len;
		841	const char *ptr = SvPVutf8 (data, len);
		842	encode_data (ptr, len);
		843	}
		844	break;
		845
		846	case BER_TYPE_IPADDRESS:
		847	{
		848	U8 ip[4];
		849	sscanf (SvPV_nolen (data), "%hhu.%hhu.%hhu.%hhu", ip + 0, ip + 1, ip + 2, ip + 3);
		850	encode_data ((const char *)ip, sizeof (ip));
		851	}
		852	break;
		853
		854	case BER_TYPE_REAL:
		855	case BER_TYPE_UCS2:
		856	case BER_TYPE_UCS4:
		857	case BER_TYPE_CROAK:
		858	default:
		859	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
		860	}
		861
		862	}
		863
		864	/////////////////////////////////////////////////////////////////////////////
		865
406	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS	866	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS
407		867
408	PROTOTYPES: ENABLE	868	PROTOTYPES: ENABLE
409		869
410	BOOT:	870	BOOT:
411	{	871	{
412	HV *stash = gv_stashpv ("Convert::BER::XS", 1);	872	HV *stash = gv_stashpv ("Convert::BER::XS", 1);
		873
		874	profile_stash = gv_stashpv ("Convert::BER::XS::Profile", 1);
413		875
414	static const struct {	876	static const struct {
415	const char *name;	877	const char *name;
416	IV iv;	878	IV iv;
417	} *civ, const_iv[] = {	879	} *civ, const_iv[] = {
418	{ "ASN_BOOLEAN", ASN_BOOLEAN },	880	#define const_iv(name) { # name, name },
419	{ "ASN_INTEGER32", ASN_INTEGER32 },	881	const_iv (ASN_BOOLEAN)
420	{ "ASN_BIT_STRING", ASN_BIT_STRING },	882	const_iv (ASN_INTEGER32)
421	{ "ASN_OCTET_STRING", ASN_OCTET_STRING },	883	const_iv (ASN_BIT_STRING)
422	{ "ASN_NULL", ASN_NULL },	884	const_iv (ASN_OCTET_STRING)
423	{ "ASN_OBJECT_IDENTIFIER", ASN_OBJECT_IDENTIFIER },	885	const_iv (ASN_NULL)
424	{ "ASN_TAG_BER", ASN_TAG_BER },	886	const_iv (ASN_OBJECT_IDENTIFIER)
425	{ "ASN_TAG_MASK", ASN_TAG_MASK },	887	const_iv (ASN_OBJECT_DESCRIPTOR)
426	{ "ASN_CONSTRUCTED", ASN_CONSTRUCTED },	888	const_iv (ASN_OID)
427	{ "ASN_UNIVERSAL", ASN_UNIVERSAL >> ASN_CLASS_SHIFT },	889	const_iv (ASN_EXTERNAL)
428	{ "ASN_APPLICATION", ASN_APPLICATION >> ASN_CLASS_SHIFT },	890	const_iv (ASN_REAL)
429	{ "ASN_CONTEXT", ASN_CONTEXT >> ASN_CLASS_SHIFT },	891	const_iv (ASN_SEQUENCE)
430	{ "ASN_PRIVATE", ASN_PRIVATE >> ASN_CLASS_SHIFT },	892	const_iv (ASN_ENUMERATED)
431	{ "ASN_CLASS_MASK", ASN_CLASS_MASK },	893	const_iv (ASN_EMBEDDED_PDV)
432	{ "ASN_CLASS_SHIFT", ASN_CLASS_SHIFT },	894	const_iv (ASN_UTF8_STRING)
433	{ "ASN_SEQUENCE", ASN_SEQUENCE },	895	const_iv (ASN_RELATIVE_OID)
434	{ "ASN_IPADDRESS", ASN_IPADDRESS },	896	const_iv (ASN_SET)
435	{ "ASN_COUNTER32", ASN_COUNTER32 },	897	const_iv (ASN_NUMERIC_STRING)
436	{ "ASN_UNSIGNED32", ASN_UNSIGNED32 },	898	const_iv (ASN_PRINTABLE_STRING)
437	{ "ASN_TIMETICKS", ASN_TIMETICKS },	899	const_iv (ASN_TELETEX_STRING)
438	{ "ASN_OPAQUE", ASN_OPAQUE },	900	const_iv (ASN_T61_STRING)
439	{ "ASN_COUNTER64", ASN_COUNTER64 },	901	const_iv (ASN_VIDEOTEX_STRING)
		902	const_iv (ASN_IA5_STRING)
		903	const_iv (ASN_ASCII_STRING)
		904	const_iv (ASN_UTC_TIME)
		905	const_iv (ASN_GENERALIZED_TIME)
		906	const_iv (ASN_GRAPHIC_STRING)
		907	const_iv (ASN_VISIBLE_STRING)
		908	const_iv (ASN_ISO646_STRING)
		909	const_iv (ASN_GENERAL_STRING)
		910	const_iv (ASN_UNIVERSAL_STRING)
		911	const_iv (ASN_CHARACTER_STRING)
		912	const_iv (ASN_BMP_STRING)
440		913
441	{ "BER_CLASS" , BER_CLASS },	914	const_iv (ASN_UNIVERSAL)
442	{ "BER_TAG" , BER_TAG },	915	const_iv (ASN_APPLICATION)
443	{ "BER_CONSTRUCTED", BER_CONSTRUCTED },	916	const_iv (ASN_CONTEXT)
444	{ "BER_DATA" , BER_DATA },	917	const_iv (ASN_PRIVATE)
		918
		919	const_iv (BER_CLASS)
		920	const_iv (BER_TAG)
		921	const_iv (BER_CONSTRUCTED)
		922	const_iv (BER_DATA)
		923
		924	const_iv (BER_TYPE_BYTES)
		925	const_iv (BER_TYPE_UTF8)
		926	const_iv (BER_TYPE_UCS2)
		927	const_iv (BER_TYPE_UCS4)
		928	const_iv (BER_TYPE_INT)
		929	const_iv (BER_TYPE_OID)
		930	const_iv (BER_TYPE_RELOID)
		931	const_iv (BER_TYPE_NULL)
		932	const_iv (BER_TYPE_BOOL)
		933	const_iv (BER_TYPE_REAL)
		934	const_iv (BER_TYPE_IPADDRESS)
		935	const_iv (BER_TYPE_CROAK)
		936
		937	const_iv (SNMP_IPADDRESS)
		938	const_iv (SNMP_COUNTER32)
		939	const_iv (SNMP_UNSIGNED32)
		940	const_iv (SNMP_TIMETICKS)
		941	const_iv (SNMP_OPAQUE)
		942	const_iv (SNMP_COUNTER64)
445	};	943	};
446		944
447	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	945	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));	946	newCONSTSUB (stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
449	}	947	}
450		948
451	SV *	949	SV *
452	ber_decode (SV *ber)	950	ber_decode (SV ber, SV profile = &PL_sv_undef)
453	CODE:	951	CODE:
454	{	952	{
		953	cur_profile = SvPROFILE (profile);
		954	STRLEN len;
455	buf = SvPVbyte (ber, len);	955	buf = SvPVbyte (ber, len);
456	cur = buf;	956	cur = buf;
457	rem = len;	957	end = buf + len;
458		958
459	RETVAL = ber_decode ();	959	RETVAL = decode_ber ();
460	}	960	}
461	OUTPUT: RETVAL	961	OUTPUT: RETVAL
462		962
463	void	963	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)	964	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:	965	PPCODE:
467	{	966	{
468	if (!SvOK (tuple))	967	if (!SvOK (tuple))
469	XSRETURN_NO;	968	XSRETURN_NO;
470		969
471	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	970	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)
472	croak ("ber_seq: tuple must be ber tuple (array-ref)");	971	croak ("ber_is: tuple must be BER tuple (array-ref)");
473		972
474	AV av = (AV )SvRV (tuple);	973	AV av = (AV )SvRV (tuple);
475		974
476	XPUSHs (	975	XPUSHs (
477	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS ]) == SvIV (klass))	976	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS ]) == SvIV (klass))
478	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))	977	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))
479	&& (!SvOK (constructed) \|\| !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) == !SvIV (constructed))	978	&& (!SvOK (constructed) \|\| !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) == !SvIV (constructed))
480	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))	979	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))
481	? &PL_sv_yes : &PL_sv_no);	980	? &PL_sv_yes : &PL_sv_undef);
482	}	981	}
483		982
484	void	983	void
485	ber_is_seq (SV *tuple)	984	ber_is_seq (SV *tuple)
486	PROTOTYPE: $
487	PPCODE:	985	PPCODE:
488	{	986	{
489	if (!SvOK (tuple))	987	if (!SvOK (tuple))
490	XSRETURN_UNDEF;	988	XSRETURN_UNDEF;
491		989
492	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	990	AV *av = ber_tuple (tuple);
493	croak ("ber_seq: tuple must be ber tuple (array-ref)");
494
495	AV av = (AV )SvRV (tuple);
496		991
497	XPUSHs (	992	XPUSHs (
498	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	993	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL
499	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE	994	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE
500	&& SvIV (AvARRAY (av)[BER_CONSTRUCTED])	995	&& SvIV (AvARRAY (av)[BER_CONSTRUCTED])
501	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);	996	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);
502	}	997	}
503		998
504	void	999	void
505	ber_is_i32 (SV *tuple, IV value)	1000	ber_is_i32 (SV tuple, SV value = &PL_sv_undef)
506	PROTOTYPE: $$
507	PPCODE:	1001	PPCODE:
508	{	1002	{
509	if (!SvOK (tuple))	1003	if (!SvOK (tuple))
510	XSRETURN_NO;	1004	XSRETURN_NO;
511		1005
512	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1006	AV *av = ber_tuple (tuple);
513	croak ("ber_seq: tuple must be ber tuple (array-ref)");
514		1007
515	AV av = (AV )SvRV (tuple);	1008	IV data = SvIV (AvARRAY (av)[BER_DATA]);
516		1009
517	XPUSHs (	1010	XPUSHs (
518	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1011	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL
519	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER32	1012	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER32
520	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1013	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])
521	&& SvIV (AvARRAY (av)[BER_DATA ]) == value	1014	&& (!SvOK (value) \|\| data == SvIV (value))
522	? &PL_sv_yes : &PL_sv_no);	1015	? sv_2mortal (data ? newSViv (data) : newSVpv ("0 but true", 0))
		1016	: &PL_sv_undef);
523	}	1017	}
524		1018
525	void	1019	void
526	ber_is_oid (SV tuple, SV oid)	1020	ber_is_oid (SV tuple, SV oid = &PL_sv_undef)
527	PROTOTYPE: $$
528	PPCODE:	1021	PPCODE:
529	{	1022	{
530	if (!SvOK (tuple))	1023	if (!SvOK (tuple))
531	XSRETURN_NO;	1024	XSRETURN_NO;
532		1025
533	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1026	AV *av = ber_tuple (tuple);
534	croak ("ber_seq: tuple must be ber tuple (array-ref)");
535
536	AV av = (AV )SvRV (tuple);
537		1027
538	XPUSHs (	1028	XPUSHs (
539	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1029	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL
540	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER	1030	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER
541	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1031	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])
542	&& sv_eq (AvARRAY (av)[BER_DATA], oid)	1032	&& (!SvOK (oid) \|\| sv_eq (AvARRAY (av)[BER_DATA], oid))
543	? &PL_sv_yes : &PL_sv_no);	1033	? newSVsv (AvARRAY (av)[BER_DATA]) : &PL_sv_undef);
544	}	1034	}
545		1035
		1036	#############################################################################
		1037
		1038	void
		1039	ber_encode (SV tuple, SV profile = &PL_sv_undef)
		1040	PPCODE:
		1041	{
		1042	cur_profile = SvPROFILE (profile);
		1043	buf_sv = sv_2mortal (NEWSV (0, 256));
		1044	SvPOK_only (buf_sv);
		1045	set_buf (buf_sv);
		1046
		1047	encode_ber (tuple);
		1048
		1049	SvCUR_set (buf_sv, cur - buf);
		1050	XPUSHs (buf_sv);
		1051	}
		1052
		1053	SV *
		1054	ber_i32 (IV iv)
		1055	CODE:
		1056	{
		1057	AV *av = newAV ();
		1058	av_fill (av, BER_ARRAYSIZE - 1);
		1059	AvARRAY (av)[BER_CLASS ] = newSVcacheint (ASN_UNIVERSAL);
		1060	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_INTEGER32);
		1061	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (0);
		1062	AvARRAY (av)[BER_DATA ] = newSViv (iv);
		1063	RETVAL = newRV_noinc ((SV *)av);
		1064	}
		1065	OUTPUT: RETVAL
		1066
		1067	# TODO: not arrayref, but elements?
		1068	SV *
		1069	ber_seq (SV *arrayref)
		1070	CODE:
		1071	{
		1072	AV *av = newAV ();
		1073	av_fill (av, BER_ARRAYSIZE - 1);
		1074	AvARRAY (av)[BER_CLASS ] = newSVcacheint (ASN_UNIVERSAL);
		1075	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_SEQUENCE);
		1076	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (1);
		1077	AvARRAY (av)[BER_DATA ] = newSVsv (arrayref);
		1078	RETVAL = newRV_noinc ((SV *)av);
		1079	}
		1080	OUTPUT: RETVAL
		1081
		1082	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS::Profile
		1083
		1084	SV *
		1085	new (SV *klass)
		1086	CODE:
		1087	RETVAL = profile_new ();
		1088	OUTPUT: RETVAL
		1089
		1090	void
		1091	set (SV *profile, int klass, int tag, int type)
		1092	CODE:
		1093	profile_set (SvPROFILE (profile), klass, tag, type);
		1094
		1095	IV
		1096	get (SV *profile, int klass, int tag)
		1097	CODE:
		1098	RETVAL = profile_lookup (SvPROFILE (profile), klass, tag);
		1099	OUTPUT: RETVAL
		1100
		1101	void
		1102	_set_default (SV *profile)
		1103	CODE:
		1104	default_profile = SvPROFILE (profile);
		1105
		1106

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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 1.6 by root, Sat Apr 20 01:03:59 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 1.6 by root, Sat Apr 20 01:03:59 2019 UTC