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

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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 1.5 by root, Fri Apr 19 23:50:53 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 1.5 by root, Fri Apr 19 23:50:53 2019 UTC