[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 1.13 by root, Sat Apr 20 13:46:14 2019 UTC

…		…
1	#include "EXTERN.h"	1	#include "EXTERN.h"
2	#include "perl.h"	2	#include "perl.h"
3	#include "XSUB.h"	3	#include "XSUB.h"
4		4
5	// C99 required	5	// C99 required!
		6	// this is not just for comments, but also for
		7	// integer constant semantics,
		8	// sscanf format modifiers and more.
6		9
7	enum {	10	enum {
8	// ASN_TAG	11	// ASN_TAG
9	ASN_BOOLEAN = 0x01,	12	ASN_BOOLEAN = 0x01,
10	ASN_INTEGER32 = 0x02,	13	ASN_INTEGER32 = 0x02,
11	ASN_BIT_STRING = 0x03,	14	ASN_BIT_STRING = 0x03,
12	ASN_OCTET_STRING = 0x04,	15	ASN_OCTET_STRING = 0x04,
13	ASN_NULL = 0x05,	16	ASN_NULL = 0x05,
14	ASN_OBJECT_IDENTIFIER = 0x06,	17	ASN_OBJECT_IDENTIFIER = 0x06,
		18	ASN_OID = 0x06,
		19	ASN_OBJECT_DESCRIPTOR = 0x07,
		20	ASN_EXTERNAL = 0x08,
15	ASN_REAL = 0x09, //X	21	ASN_REAL = 0x09,
16	ASN_ENUMERATED = 0x0a, //X	22	ASN_ENUMERATED = 0x0a,
		23	ASN_EMBEDDED_PDV = 0x0b,
		24	ASN_UTF8_STRING = 0x0c,
		25	ASN_RELATIVE_OID = 0x0d,
17	ASN_SEQUENCE = 0x10,	26	ASN_SEQUENCE = 0x10,
18	ASN_SET = 0x11, //X	27	ASN_SET = 0x11,
		28	ASN_NUMERIC_STRING = 0x12,
		29	ASN_PRINTABLE_STRING = 0x13,
		30	ASN_TELETEX_STRING = 0x14,
		31	ASN_T61_STRING = 0x14,
		32	ASN_VIDEOTEX_STRING = 0x15,
		33	ASN_IA5_STRING = 0x16,
		34	ASN_ASCII_STRING = 0x16,
19	ASN_UTC_TIME = 0x17, //X	35	ASN_UTC_TIME = 0x17,
20	ASN_GENERAL_TIME = 0x18, //X	36	ASN_GENERALIZED_TIME = 0x18,
		37	ASN_GRAPHIC_STRING = 0x19,
		38	ASN_VISIBLE_STRING = 0x1a,
		39	ASN_ISO646_STRING = 0x1a,
		40	ASN_GENERAL_STRING = 0x1b,
		41	ASN_UNIVERSAL_STRING = 0x1c,
		42	ASN_CHARACTER_STRING = 0x1d,
		43	ASN_BMP_STRING = 0x1e,
21		44
22	ASN_TAG_BER = 0x1f,	45	ASN_TAG_BER = 0x1f,
23	ASN_TAG_MASK = 0x1f,	46	ASN_TAG_MASK = 0x1f,
24		47
25	// primitive/constructed	48	// primitive/constructed
26	ASN_CONSTRUCTED = 0x20,	49	ASN_CONSTRUCTED = 0x20,
27		50
28	// ASN_CLASS	51	// ASN_CLASS
29	ASN_UNIVERSAL = 0x00,	52	ASN_UNIVERSAL = 0x00,
30	ASN_APPLICATION = 0x40,	53	ASN_APPLICATION = 0x01,
31	ASN_CONTEXT = 0x80,	54	ASN_CONTEXT = 0x02,
32	ASN_PRIVATE = 0xc0,	55	ASN_PRIVATE = 0x03,
33		56
34	ASN_CLASS_MASK = 0xc0,	57	ASN_CLASS_MASK = 0xc0,
35	ASN_CLASS_SHIFT = 6,	58	ASN_CLASS_SHIFT = 6,
36		59
37	// ASN_APPLICATION SNMP	60	// ASN_APPLICATION SNMP
38	ASN_IPADDRESS = 0x00,	61	SNMP_IPADDRESS = 0x00,
39	ASN_COUNTER32 = 0x01,	62	SNMP_COUNTER32 = 0x01,
40	ASN_UNSIGNED32 = 0x02,	63	SNMP_UNSIGNED32 = 0x02,
41	ASN_TIMETICKS = 0x03,	64	SNMP_TIMETICKS = 0x03,
42	ASN_OPAQUE = 0x04,	65	SNMP_OPAQUE = 0x04,
43	ASN_COUNTER64 = 0x06,	66	SNMP_COUNTER64 = 0x06,
		67	};
		68
		69	enum {
		70	BER_TYPE_BYTES,
		71	BER_TYPE_UTF8,
		72	BER_TYPE_UCS2,
		73	BER_TYPE_UCS4,
		74	BER_TYPE_INT,
		75	BER_TYPE_OID,
		76	BER_TYPE_RELOID,
		77	BER_TYPE_NULL,
		78	BER_TYPE_BOOL,
		79	BER_TYPE_REAL,
		80	BER_TYPE_IPADDRESS,
		81	BER_TYPE_CROAK,
44	};	82	};
45		83
46	enum {	84	enum {
47	BER_CLASS = 0,	85	BER_CLASS = 0,
48	BER_TAG = 1,	86	BER_TAG = 1,
51	BER_ARRAYSIZE	89	BER_ARRAYSIZE
52	};	90	};
53		91
54	#define MAX_OID_STRLEN 4096	92	#define MAX_OID_STRLEN 4096
55		93
56	static U8 buf, cur;	94	typedef void profile_type;
57	static STRLEN len, rem;	95
		96	static profile_type cur_profile, default_profile;
		97	static SV *buf_sv; // encoding buffer
		98	static U8 buf, cur, *end; // buffer start, current, end
		99
		100	#if PERL_VERSION < 18
		101	# define utf8_to_uvchr_buf(s,e,l) utf8_to_uvchr (s, l)
		102	#endif
		103
		104	#if __GNUC__ >= 3
		105	# define expect(expr,value) __builtin_expect ((expr), (value))
		106	# define INLINE static inline
		107	#else
		108	# define expect(expr,value) (expr)
		109	# define INLINE static
		110	#endif
		111
		112	#define expect_false(expr) expect ((expr) != 0, 0)
		113	#define expect_true(expr) expect ((expr) != 0, 1)
		114
		115	/////////////////////////////////////////////////////////////////////////////
		116
		117	static SV *sviv_cache[32];
58		118
59	// for "small" integers, return a readonly sv, otherwise create a new one	119	// for "small" integers, return a readonly sv, otherwise create a new one
60	static SV *newSVcacheint (int val)	120	static SV *newSVcacheint (int val)
61	{	121	{
62	static SV *cache[32];
63
64	if (val < 0 \|\| val >= sizeof (cache))	122	if (expect_false (val < 0 \|\| val >= sizeof (sviv_cache)))
65	return newSViv (val);	123	return newSViv (val);
66		124
67	if (!cache [val])	125	if (expect_false (!sviv_cache [val]))
68	{	126	{
69	cache [val] = newSVuv (val);	127	sviv_cache [val] = newSVuv (val);
70	SvREADONLY_on (cache [val]);	128	SvREADONLY_on (sviv_cache [val]);
71	}	129	}
72		130
73	return SvREFCNT_inc_NN (cache [val]);	131	return SvREFCNT_inc_NN (sviv_cache [val]);
74	}	132	}
75		133
76	/////////////////////////////////////////////////////////////////////////////	134	/////////////////////////////////////////////////////////////////////////////
77		135
		136	static HV *profile_stash;
		137
		138	static profile_type *
		139	SvPROFILE (SV *profile)
		140	{
		141	if (!SvOK (profile))
		142	return default_profile;
		143
		144	if (!SvROK (profile))
		145	croak ("invalid profile");
		146
		147	profile = SvRV (profile);
		148
		149	if (SvSTASH (profile) != profile_stash)
		150	croak ("invalid profile object");
		151
		152	return (void *)profile;
		153	}
		154
		155	static int
		156	profile_lookup (profile_type *profile, int klass, int tag)
		157	{
		158	SV sv = (SV )profile;
		159	U32 idx = (tag << 2) + klass;
		160
		161	if (expect_false (idx >= SvCUR (sv)))
		162	return BER_TYPE_BYTES;
		163
		164	return SvPVX (sv)[idx];
		165	}
		166
		167	static void
		168	profile_set (profile_type *profile, int klass, int tag, int type)
		169	{
		170	SV sv = (SV )profile;
		171	U32 idx = (tag << 2) + klass;
		172	STRLEN oldlen = SvCUR (sv);
		173	STRLEN newlen = idx + 2;
		174
		175	if (idx >= oldlen)
		176	{
		177	sv_grow (sv, newlen);
		178	memset (SvPVX (sv) + oldlen, BER_TYPE_BYTES, newlen - oldlen);
		179	SvCUR_set (sv, newlen);
		180	}
		181
		182	SvPVX (sv)[idx] = type;
		183	}
		184
		185	static SV *
		186	profile_new ()
		187	{
		188	SV *sv = newSVpvn ("", 0);
		189
		190	static const struct {
		191	int klass;
		192	int tag;
		193	int type;
		194	} *celem, default_map[] = {
		195	{ ASN_UNIVERSAL, ASN_BOOLEAN , BER_TYPE_BOOL },
		196	{ ASN_UNIVERSAL, ASN_INTEGER32 , BER_TYPE_INT },
		197	{ ASN_UNIVERSAL, ASN_NULL , BER_TYPE_NULL },
		198	{ ASN_UNIVERSAL, ASN_OBJECT_IDENTIFIER, BER_TYPE_OID },
		199	{ ASN_UNIVERSAL, ASN_RELATIVE_OID , BER_TYPE_RELOID },
		200	{ ASN_UNIVERSAL, ASN_REAL , BER_TYPE_REAL },
		201	{ ASN_UNIVERSAL, ASN_ENUMERATED , BER_TYPE_INT },
		202	{ ASN_UNIVERSAL, ASN_UTF8_STRING , BER_TYPE_UTF8 },
		203	{ ASN_UNIVERSAL, ASN_BMP_STRING , BER_TYPE_UCS2 },
		204	{ ASN_UNIVERSAL, ASN_UNIVERSAL_STRING , BER_TYPE_UCS4 },
		205	};
		206
		207	for (celem = default_map + sizeof (default_map) / sizeof (default_map [0]); celem-- > default_map; )
		208	profile_set ((profile_type *)sv, celem->klass, celem->tag, celem->type);
		209
		210	return sv_bless (newRV_noinc (sv), profile_stash);
		211	}
		212
		213	/////////////////////////////////////////////////////////////////////////////
		214	// decoder
		215
78	static void	216	static void
79	error (const char *errmsg)	217	error (const char *errmsg)
80	{	218	{
81	croak ("%s at offset 0x%04x", errmsg, cur - buf);	219	croak ("%s at offset 0x%04x", errmsg, cur - buf);
82	}	220	}
83		221
84	static int	222	static void
85	need (int count)	223	want (UV count)
86	{	224	{
87	if (count < 0 \|\| (int)rem < count)	225	if (expect_false ((uintptr_t)(end - cur) < count))
88	{
89	error ("unexpected end of message buffer");	226	error ("unexpected end of message buffer");
90	return 0;
91	}
92
93	return 1;
94	}	227	}
95		228
96	// get_* functions fetch something from the buffer	229	// get_* functions fetch something from the buffer
97	// decode_* functions use get_* fun ctions to decode ber values	230	// decode_* functions use get_* fun ctions to decode ber values
98		231
		232	// get n octets
99	static U8 *	233	static U8 *
100	get_n (int count, const U8 *errres)	234	get_n (UV count)
101	{	235	{
102	if (!need (count))	236	want (count);
103	return (U8 *)errres;
104
105	U8 *res = cur;	237	U8 *res = cur;
106
107	cur += count;	238	cur += count;
108	rem -= count;
109
110	return res;	239	return res;
111	}	240	}
112		241
		242	// get single octet
113	static U8	243	static U8
114	get_u8 (void)	244	get_u8 (void)
115	{	245	{
116	if (rem <= 0)	246	if (cur == end)
117	{
118	error ("unexpected end of message buffer");	247	error ("unexpected end of message buffer");
119	return 0;
120	}
121		248
122	rem--;
123	return *cur++;	249	return *cur++;
124	}	250	}
125		251
		252	// get ber-encoded integer (i.e. pack "w")
126	static U32	253	static U32
127	get_ber (void)	254	get_w (void)
128	{	255	{
129	U32 res = 0;	256	U32 res = 0;
130		257
131	for (;;)	258	for (;;)
132	{	259	{
…		…
166	}	293	}
167		294
168	return res;	295	return res;
169	}	296	}
170		297
171	static U32	298	static SV *
172	get_integer32 (void)	299	decode_int ()
173	{	300	{
174	U32 length = get_length ();	301	int len = get_length ();
175		302
176	if (length <= 0)	303	if (len <= 0)
177	{	304	{
178	error ("INTEGER32 length equal to zero");	305	error ("integer length equal to zero");
179	return 0;	306	return 0;
180	}	307	}
181		308
182	U8 *data = get_n (length, 0);	309	U8 *data = get_n (len);
183		310
184	if (!data)	311	int negative = data [0] & 0x80;
185	return 0;
186		312
187	if (length > 5 \|\| (length > 4 && data [0]))	313	UV val = negative ? -1 : 0; // copy signbit to all bits
188	{
189	error ("INTEGER32 length too long");
190	return 0;
191	}
192		314
193	U32 res = data [0] & 0x80 ? 0xffffffff : 0;	315	do
194
195	while (length--)
196	res = (res << 8) \| *data++;	316	val = (val << 8) \| *data++;
		317	while (--len);
197		318
198	return res;	319	// the cast to IV relies on implementation-defined behaviour (two's complement cast)
		320	// but that's ok, as perl relies on it as well.
		321	return negative ? newSViv ((IV)val) : newSVuv (val);
199	}	322	}
200		323
201	static SV *	324	static SV *
202	decode_integer32 (void)	325	decode_data (void)
203	{	326	{
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 ();	327	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);	328	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);	329	return newSVpvn ((char *)data, len);
272	}	330	}
273		331
274	// gelper for decode_object_identifier	332	// gelper for decode_object_identifier
275	static char *	333	static char *
276	write_uv (char *buf, U32 u)	334	write_uv (char *buf, U32 u)
277	{	335	{
278	// the one-digit case is absolutely predominant, so this pays off (hopefully)	336	// the one-digit case is absolutely predominant, so this pays off (hopefully)
279	if (u < 10)	337	if (expect_true (u < 10))
280	*buf++ = u + '0';	338	*buf++ = u + '0';
281	else	339	else
282	{	340	{
		341	// this could be done much faster using branchless fixed-ppint arithmetics
283	char *beg = buf;	342	char *beg = buf;
284		343
285	do	344	do
286	{	345	{
287	*buf++ = u % 10 + '0';	346	*buf++ = u % 10 + '0';
288	u /= 10;	347	u /= 10;
289	}	348	}
290	while (u);	349	while (u);
291		350
292	// reverse digits	351	// reverse digits
293	for (char *ptr = buf; --ptr != beg; ++beg)	352	char *ptr = buf;
		353	while (--ptr > beg)
294	{	354	{
295	char c = *ptr;	355	char c = *ptr;
296	ptr = beg;	356	ptr = beg;
297	*beg = c;	357	*beg = c;
		358	++beg;
298	}	359	}
299	}	360	}
300		361
301	return buf;	362	return buf;
302	}	363	}
303		364
304	static SV *	365	static SV *
305	decode_object_identifier (void)	366	decode_oid (int relative)
306	{	367	{
307	U32 length = get_length ();	368	U32 len = get_length ();
308		369
309	if (length <= 0)	370	if (len <= 0)
310	{	371	{
311	error ("OBJECT IDENTIFIER length equal to zero");	372	error ("OBJECT IDENTIFIER length equal to zero");
312	return &PL_sv_undef;	373	return &PL_sv_undef;
313	}	374	}
314		375
315	U8 *end = cur + length;	376	U8 *end = cur + len;
316	U32 w = get_ber ();	377	U32 w = get_w ();
317		378
318	static char oid[MAX_OID_STRLEN]; // must be static	379	static char oid[MAX_OID_STRLEN]; // static, becaueds too large for stack
319	char *app = oid;	380	char *app = oid;
320		381
		382	if (relative)
		383	app = write_uv (app, w);
		384	else
		385	{
321	app = write_uv (app, (U8)w / 40);	386	app = write_uv (app, (U8)w / 40);
322	*app++ = '.';	387	*app++ = '.';
323	app = write_uv (app, (U8)w % 40);	388	app = write_uv (app, (U8)w % 40);
		389	}
324		390
		391	while (cur < end)
		392	{
325	// we assume an oid component is never > 64 bytes	393	// we assume an oid component is never > 64 digits
326	while (cur < end && oid + sizeof (oid) - app > 64)	394	if (oid + sizeof (oid) - app < 64)
327	{	395	croak ("BER_TYPE_OID to long to decode");
		396
328	w = get_ber ();	397	w = get_w ();
329	*app++ = '.';	398	*app++ = '.';
330	app = write_uv (app, w);	399	app = write_uv (app, w);
331	}	400	}
332		401
333	return newSVpvn (oid, app - oid);	402	return newSVpvn (oid, app - oid);
334	}	403	}
335		404
		405	// TODO: this is unacceptably slow
		406	static SV *
		407	decode_ucs (int chrsize)
		408	{
		409	SV *res = NEWSV (0, 0);
		410
		411	U32 len = get_length ();
		412
		413	if (len & (chrsize - 1))
		414	croak ("BER_TYPE_UCS has an invalid number of octets (%d)", len);
		415
		416	while (len)
		417	{
		418	U8 b1 = get_u8 ();
		419	U8 b2 = get_u8 ();
		420	U32 chr = (b1 << 8) \| b2;
		421
		422	if (chrsize == 4)
		423	{
		424	U8 b3 = get_u8 ();
		425	U8 b4 = get_u8 ();
		426	chr = (chr << 16) \| (b3 << 8) \| b4;
		427	}
		428
		429	U8 uchr [UTF8_MAXBYTES];
		430	int uclen = uvuni_to_utf8 (uchr, chr) - uchr;
		431
		432	sv_catpvn (res, (const char *)uchr, uclen);
		433	len -= chrsize;
		434	}
		435
		436	SvUTF8_on (res);
		437
		438	return res;
		439	}
		440
336	static SV *	441	static SV *
337	decode_ber ()	442	decode_ber ()
338	{	443	{
339	int identifier = get_u8 ();	444	int identifier = get_u8 ();
340		445
341	SV *res;	446	SV *res;
342		447
343	int constructed = identifier & ASN_CONSTRUCTED;	448	int constructed = identifier & ASN_CONSTRUCTED;
344	int klass = identifier & ASN_CLASS_MASK;	449	int klass = (identifier & ASN_CLASS_MASK) >> ASN_CLASS_SHIFT;
345	int tag = identifier & ASN_TAG_MASK;	450	int tag = identifier & ASN_TAG_MASK;
346		451
347	if (tag == ASN_TAG_BER)	452	if (tag == ASN_TAG_BER)
348	tag = get_ber ();	453	tag = get_w ();
349		454
350	if (tag == ASN_TAG_BER)	455	if (tag == ASN_TAG_BER)
351	tag = get_ber ();	456	tag = get_w ();
352		457
353	if (constructed)	458	if (constructed)
354	{	459	{
355	U32 len = get_length ();	460	U32 len = get_length ();
356	U32 seqend = (cur - buf) + len;	461	U32 seqend = (cur - buf) + len;
…		…
363	croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend);	468	croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend);
364		469
365	res = newRV_inc ((SV *)av);	470	res = newRV_inc ((SV *)av);
366	}	471	}
367	else	472	else
368	switch (identifier)	473	switch (profile_lookup (cur_profile, klass, tag))
369	{	474	{
370	case ASN_NULL:	475	case BER_TYPE_NULL:
		476	{
		477	U32 len = get_length ();
		478
		479	if (len)
		480	croak ("BER_TYPE_NULL value with non-zero length %d encountered", len);
		481
371	res = &PL_sv_undef;	482	res = &PL_sv_undef;
		483	}
372	break;	484	break;
373		485
374	case ASN_OBJECT_IDENTIFIER:	486	case BER_TYPE_BOOL:
		487	{
		488	U32 len = get_length ();
		489
		490	if (len != 1)
		491	croak ("BER_TYPE_BOOLEAN value with invalid length %d encountered", len);
		492
		493	res = newSVcacheint (!!get_u8 ());
		494	}
		495	break;
		496
		497	case BER_TYPE_OID:
375	res = decode_object_identifier ();	498	res = decode_oid (0);
376	break;	499	break;
377		500
378	case ASN_INTEGER32:	501	case BER_TYPE_RELOID:
		502	res = decode_oid (1);
		503	break;
		504
		505	case BER_TYPE_INT:
379	res = decode_integer32 ();	506	res = decode_int ();
380	break;	507	break;
381		508
382	case ASN_APPLICATION \| ASN_UNSIGNED32:	509	case BER_TYPE_UTF8:
383	case ASN_APPLICATION \| ASN_COUNTER32:	510	res = decode_data ();
384	case ASN_APPLICATION \| ASN_TIMETICKS:	511	SvUTF8_on (res);
		512	break;
		513
		514	case BER_TYPE_BYTES:
		515	res = decode_data ();
		516	break;
		517
		518	case BER_TYPE_IPADDRESS:
		519	{
		520	U32 len = get_length ();
		521
		522	if (len != 4)
		523	croak ("BER_TYPE_IPADDRESS type with invalid length %d encountered", len);
		524
		525	U8 c1 = get_u8 ();
		526	U8 c2 = get_u8 ();
		527	U8 c3 = get_u8 ();
		528	U8 c4 = get_u8 ();
		529
		530	res = newSVpvf ("%d.%d.%d.%d", c1, c2, c3, c4);
		531	}
		532	break;
		533
		534	case BER_TYPE_UCS2:
		535	res = decode_ucs (2);
		536	break;
		537
		538	case BER_TYPE_UCS4:
385	res = decode_unsigned32 ();	539	res = decode_ucs (4);
386	break;	540	break;
387		541
388	#if 0 // handled by default case	542	case BER_TYPE_REAL:
389	case ASN_OCTET_STRING:	543	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:	544	default:
401	res = decode_octet_string ();	545	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
402	break;
403	}	546	}
404		547
405	AV *av = newAV ();	548	AV *av = newAV ();
406	av_fill (av, BER_ARRAYSIZE - 1);	549	av_fill (av, BER_ARRAYSIZE - 1);
407	AvARRAY (av)[BER_CLASS ] = newSVcacheint (klass >> ASN_CLASS_SHIFT);	550	AvARRAY (av)[BER_CLASS ] = newSVcacheint (klass);
408	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);	551	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);
409	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (constructed ? 1 : 0);	552	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (constructed ? 1 : 0);
410	AvARRAY (av)[BER_DATA ] = res;	553	AvARRAY (av)[BER_DATA ] = res;
411		554
412	return newRV_noinc ((SV *)av);	555	return newRV_noinc ((SV *)av);
413	}	556	}
414		557
		558	/////////////////////////////////////////////////////////////////////////////
		559	// encoder
		560
		561	/* adds two STRLENs together, slow, and with paranoia */
		562	static STRLEN
		563	strlen_sum (STRLEN l1, STRLEN l2)
		564	{
		565	size_t sum = l1 + l2;
		566
		567	if (sum < (size_t)l2 \|\| sum != (size_t)(STRLEN)sum)
		568	croak ("JSON::XS: string size overflow");
		569
		570	return sum;
		571	}
		572
		573	static void
		574	set_buf (SV *sv)
		575	{
		576	STRLEN len;
		577	buf_sv = sv;
		578	buf = (U8 *)SvPVbyte (buf_sv, len);
		579	cur = buf;
		580	end = buf + len;
		581	}
		582
		583	/* similar to SvGROW, but somewhat safer and guarantees exponential realloc strategy */
		584	static char *
		585	my_sv_grow (SV *sv, size_t len1, size_t len2)
		586	{
		587	len1 = strlen_sum (len1, len2);
		588	len1 = strlen_sum (len1, len1 >> 1);
		589
		590	if (len1 > 4096 - 24)
		591	len1 = (len1 \| 4095) - 24;
		592
		593	return SvGROW (sv, len1);
		594	}
		595
		596	static void
		597	need (STRLEN len)
		598	{
		599	if (expect_false ((uintptr_t)(end - cur) < len))
		600	{
		601	STRLEN pos = cur - buf;
		602	buf = (U8 *)my_sv_grow (buf_sv, pos, len);
		603	cur = buf + pos;
		604	end = buf + SvLEN (buf_sv) - 1;
		605	}
		606	}
		607
		608	static void
		609	put_u8 (int val)
		610	{
		611	need (1);
		612	*cur++ = val;
		613	}
		614
		615	static void
		616	put_w_nocheck (U32 val)
		617	{
		618	cur = (val >> 7 4) \| 0x80; cur += val >= (1 << (7 * 4));
		619	cur = (val >> 7 3) \| 0x80; cur += val >= (1 << (7 * 3));
		620	cur = (val >> 7 2) \| 0x80; cur += val >= (1 << (7 * 2));
		621	cur = (val >> 7 1) \| 0x80; cur += val >= (1 << (7 * 1));
		622	*cur = val & 0x7f; cur += 1;
		623	}
		624
		625	static void
		626	put_w (U32 val)
		627	{
		628	need (5); // we only handle up to 5 bytes
		629
		630	put_w_nocheck (val);
		631	}
		632
		633	static U8 *
		634	put_length_at (U32 val, U8 *cur)
		635	{
		636	if (val < 0x7fU)
		637	*cur++ = val;
		638	else
		639	{
		640	U8 *lenb = cur++;
		641
		642	cur = val >> 24; cur += cur > 0;
		643	cur = val >> 16; cur += cur > 0;
		644	cur = val >> 8; cur += cur > 0;
		645	*cur = val ; cur += 1;
		646
		647	*lenb = 0x80 + cur - lenb - 1;
		648	}
		649
		650	return cur;
		651	}
		652
		653	static void
		654	put_length (U32 val)
		655	{
		656	need (5 + val);
		657	cur = put_length_at (val, cur);
		658	}
		659
		660	// return how many bytes the encoded length requires
		661	static int length_length (U32 val)
		662	{
		663	return val < 0x7fU
		664	? 1
		665	: 2 + (val > 0xffU) + (val > 0xffffU) + (val > 0xffffffU);
		666	}
		667
		668	static void
		669	encode_data (const char *ptr, STRLEN len)
		670	{
		671	put_length (len);
		672	memcpy (cur, ptr, len);
		673	cur += len;
		674	}
		675
		676	static void
		677	encode_uv (UV uv)
		678	{
		679	}
		680
		681	static void
		682	encode_int (SV *sv)
		683	{
		684	need (8 + 1 + 1); // 64 bit + length + extra 0
		685
		686	if (expect_false (!SvIOK (sv)))
		687	sv_2iv_flags (sv, 0);
		688
		689	U8 *lenb = cur++;
		690
		691	if (SvIOK_notUV (sv))
		692	{
		693	IV iv = SvIVX (sv);
		694
		695	if (expect_false (iv < 0))
		696	{
		697	// get two's complement bit pattern - works even on hypothetical non-2c machines
		698	UV uv = iv;
		699
		700	#if UVSIZE > 4
		701	*cur = uv >> 56; cur += !!(~uv & 0xff80000000000000U);
		702	*cur = uv >> 48; cur += !!(~uv & 0xffff800000000000U);
		703	*cur = uv >> 40; cur += !!(~uv & 0xffffff8000000000U);
		704	*cur = uv >> 32; cur += !!(~uv & 0xffffffff80000000U);
		705	#endif
		706	*cur = uv >> 24; cur += !!(~uv & 0xffffffffff800000U);
		707	*cur = uv >> 16; cur += !!(~uv & 0xffffffffffff8000U);
		708	*cur = uv >> 8; cur += !!(~uv & 0xffffffffffffff80U);
		709	*cur = uv ; cur += 1;
		710
		711	*lenb = cur - lenb - 1;
		712
		713	return;
		714	}
		715	}
		716
		717	UV uv = SvUV (sv);
		718
		719	// prepend an extra 0 if the high bit is 1
		720	cur = 0; cur += !!(uv & ((UV)1 << (UVSIZE 8 - 1)));
		721
		722	#if UVSIZE > 4
		723	*cur = uv >> 56; cur += !!(uv & 0xff80000000000000U);
		724	*cur = uv >> 48; cur += !!(uv & 0xffff800000000000U);
		725	*cur = uv >> 40; cur += !!(uv & 0xffffff8000000000U);
		726	*cur = uv >> 32; cur += !!(uv & 0xffffffff80000000U);
		727	#endif
		728	*cur = uv >> 24; cur += !!(uv & 0xffffffffff800000U);
		729	*cur = uv >> 16; cur += !!(uv & 0xffffffffffff8000U);
		730	*cur = uv >> 8; cur += !!(uv & 0xffffffffffffff80U);
		731	*cur = uv ; cur += 1;
		732
		733	*lenb = cur - lenb - 1;
		734	}
		735
		736	// we don't know the length yet, so we optimistically
		737	// assume the length will need one octet later. if that
		738	// turns out to be wrong, we memove as needed.
		739	// mark the beginning
		740	static STRLEN
		741	len_fixup_mark ()
		742	{
		743	return cur++ - buf;
		744	}
		745
		746	// patch up the length
		747	static void
		748	len_fixup (STRLEN mark)
		749	{
		750	STRLEN reallen = (cur - buf) - mark - 1;
		751	int lenlen = length_length (reallen);
		752
		753	if (expect_false (lenlen > 1))
		754	{
		755	// bad luck, we have to shift the bytes to make room for the length
		756	need (5);
		757	memmove (buf + mark + lenlen, buf + mark + 1, reallen);
		758	cur += lenlen - 1;
		759	}
		760
		761	put_length_at (reallen, buf + mark);
		762	}
		763
		764	static char *
		765	read_uv (char str, UV uv)
		766	{
		767	UV r = 0;
		768
		769	while (*str >= '0')
		770	r = r * 10 + *str++ - '0';
		771
		772	*uv = r;
		773
		774	str += !!*str; // advance over any non-zero byte
		775
		776	return str;
		777	}
		778
		779	static void
		780	encode_oid (SV *oid, int relative)
		781	{
		782	STRLEN len;
		783	char *ptr = SvPV (oid, len); // utf8 vs. bytes does not matter
		784
		785	// we need at most as many octets as the string form
		786	need (len + 1);
		787	STRLEN mark = len_fixup_mark ();
		788
		789	UV w1, w2;
		790
		791	if (!relative)
		792	{
		793	ptr = read_uv (ptr, &w1);
		794	ptr = read_uv (ptr, &w2);
		795
		796	put_w_nocheck (w1 * 40 + w2);
		797	}
		798
		799	while (*ptr)
		800	{
		801	ptr = read_uv (ptr, &w1);
		802	put_w_nocheck (w1);
		803	}
		804
		805	len_fixup (mark);
		806	}
		807
		808	// check whether an SV is a BER tuple and returns its AV *
		809	static AV *
		810	ber_tuple (SV *tuple)
		811	{
		812	SV *rv;
		813
		814	if (expect_false (!SvROK (tuple) \|\| SvTYPE ((rv = SvRV (tuple))) != SVt_PVAV))
		815	croak ("BER tuple must be array-reference");
		816
		817	if (expect_false (SvRMAGICAL (rv)))
		818	croak ("BER tuple must not be tied");
		819
		820	if (expect_false (AvFILL ((AV *)rv) != BER_ARRAYSIZE - 1))
		821	croak ("BER tuple must contain exactly %d elements, not %d", BER_ARRAYSIZE, AvFILL ((AV *)rv) + 1);
		822
		823	return (AV *)rv;
		824	}
		825
		826	static void
		827	encode_ucs (SV *data, int chrsize)
		828	{
		829	STRLEN uchars = sv_len_utf8 (data);
		830	STRLEN len;;
		831	char *ptr = SvPVutf8 (data, len);
		832
		833	put_length (uchars * chrsize);
		834
		835	while (uchars--)
		836	{
		837	STRLEN uclen;
		838	UV uchr = utf8_to_uvchr_buf ((U8 )ptr, (U8 )ptr + len, &uclen);
		839
		840	ptr += uclen;
		841	len -= uclen;
		842
		843	if (chrsize == 4)
		844	{
		845	*cur++ = uchr >> 24;
		846	*cur++ = uchr >> 16;
		847	}
		848
		849	*cur++ = uchr >> 8;
		850	*cur++ = uchr;
		851	}
		852	}
		853	static void
		854	encode_ber (SV *tuple)
		855	{
		856	AV *av = ber_tuple (tuple);
		857
		858	int klass = SvIV (AvARRAY (av)[BER_CLASS]);
		859	int tag = SvIV (AvARRAY (av)[BER_TAG]);
		860	int constructed = SvIV (AvARRAY (av)[BER_CONSTRUCTED]) ? ASN_CONSTRUCTED : 0;
		861	SV *data = AvARRAY (av)[BER_DATA];
		862
		863	int identifier = (klass << ASN_CLASS_SHIFT) \| constructed;
		864
		865	if (expect_false (tag >= ASN_TAG_BER))
		866	{
		867	put_u8 (identifier \| ASN_TAG_BER);
		868	put_w (tag);
		869	}
		870	else
		871	put_u8 (identifier \| tag);
		872
		873	if (constructed)
		874	{
		875	// we optimistically assume that only one length byte is needed
		876	// and adjust later
		877	need (1);
		878	STRLEN mark = len_fixup_mark ();
		879
		880	if (expect_false (!SvROK (data) \|\| SvTYPE (SvRV (data)) != SVt_PVAV))
		881	croak ("BER constructed data must be array-reference");
		882
		883	AV av = (AV )SvRV (data);
		884	int fill = AvFILL (av);
		885
		886	if (expect_false (SvRMAGICAL (av)))
		887	croak ("BER constructed data must not be tied");
		888
		889	int i;
		890	for (i = 0; i <= fill; ++i)
		891	encode_ber (AvARRAY (av)[i]);
		892
		893	len_fixup (mark);
		894	}
		895	else
		896	switch (profile_lookup (cur_profile, klass, tag))
		897	{
		898	case BER_TYPE_NULL:
		899	put_length (0);
		900	break;
		901
		902	case BER_TYPE_BOOL:
		903	put_length (1);
		904	*cur++ = SvTRUE (data) ? 0xff : 0x00;
		905	break;
		906
		907	case BER_TYPE_OID:
		908	encode_oid (data, 0);
		909	break;
		910
		911	case BER_TYPE_RELOID:
		912	encode_oid (data, 1);
		913	break;
		914
		915	case BER_TYPE_INT:
		916	encode_int (data);
		917	break;
		918
		919	case BER_TYPE_BYTES:
		920	{
		921	STRLEN len;
		922	const char *ptr = SvPVbyte (data, len);
		923	encode_data (ptr, len);
		924	}
		925	break;
		926
		927	case BER_TYPE_UTF8:
		928	{
		929	STRLEN len;
		930	const char *ptr = SvPVutf8 (data, len);
		931	encode_data (ptr, len);
		932	}
		933	break;
		934
		935	case BER_TYPE_IPADDRESS:
		936	{
		937	U8 ip[4];
		938	sscanf (SvPV_nolen (data), "%hhu.%hhu.%hhu.%hhu", ip + 0, ip + 1, ip + 2, ip + 3);
		939	encode_data ((const char *)ip, sizeof (ip));
		940	}
		941	break;
		942
		943	case BER_TYPE_UCS2:
		944	encode_ucs (data, 2);
		945	break;
		946
		947	case BER_TYPE_UCS4:
		948	encode_ucs (data, 4);
		949	break;
		950
		951	case BER_TYPE_REAL:
		952	case BER_TYPE_CROAK:
		953	default:
		954	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
		955	}
		956
		957	}
		958
		959	/////////////////////////////////////////////////////////////////////////////
		960
415	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS	961	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS
416		962
417	PROTOTYPES: ENABLE	963	PROTOTYPES: ENABLE
418		964
419	BOOT:	965	BOOT:
420	{	966	{
421	HV *stash = gv_stashpv ("Convert::BER::XS", 1);	967	HV *stash = gv_stashpv ("Convert::BER::XS", 1);
		968
		969	profile_stash = gv_stashpv ("Convert::BER::XS::Profile", 1);
422		970
423	static const struct {	971	static const struct {
424	const char *name;	972	const char *name;
425	IV iv;	973	IV iv;
426	} *civ, const_iv[] = {	974	} *civ, const_iv[] = {
427	{ "ASN_BOOLEAN", ASN_BOOLEAN },	975	#define const_iv(name) { # name, name },
428	{ "ASN_INTEGER32", ASN_INTEGER32 },	976	const_iv (ASN_BOOLEAN)
429	{ "ASN_BIT_STRING", ASN_BIT_STRING },	977	const_iv (ASN_INTEGER32)
430	{ "ASN_OCTET_STRING", ASN_OCTET_STRING },	978	const_iv (ASN_BIT_STRING)
431	{ "ASN_NULL", ASN_NULL },	979	const_iv (ASN_OCTET_STRING)
432	{ "ASN_OBJECT_IDENTIFIER", ASN_OBJECT_IDENTIFIER },	980	const_iv (ASN_NULL)
433	{ "ASN_TAG_BER", ASN_TAG_BER },	981	const_iv (ASN_OBJECT_IDENTIFIER)
434	{ "ASN_TAG_MASK", ASN_TAG_MASK },	982	const_iv (ASN_OBJECT_DESCRIPTOR)
435	{ "ASN_CONSTRUCTED", ASN_CONSTRUCTED },	983	const_iv (ASN_OID)
436	{ "ASN_UNIVERSAL", ASN_UNIVERSAL >> ASN_CLASS_SHIFT },	984	const_iv (ASN_EXTERNAL)
437	{ "ASN_APPLICATION", ASN_APPLICATION >> ASN_CLASS_SHIFT },	985	const_iv (ASN_REAL)
438	{ "ASN_CONTEXT", ASN_CONTEXT >> ASN_CLASS_SHIFT },	986	const_iv (ASN_SEQUENCE)
439	{ "ASN_PRIVATE", ASN_PRIVATE >> ASN_CLASS_SHIFT },	987	const_iv (ASN_ENUMERATED)
440	{ "ASN_CLASS_MASK", ASN_CLASS_MASK },	988	const_iv (ASN_EMBEDDED_PDV)
441	{ "ASN_CLASS_SHIFT", ASN_CLASS_SHIFT },	989	const_iv (ASN_UTF8_STRING)
442	{ "ASN_SEQUENCE", ASN_SEQUENCE },	990	const_iv (ASN_RELATIVE_OID)
443	{ "ASN_IPADDRESS", ASN_IPADDRESS },	991	const_iv (ASN_SET)
444	{ "ASN_COUNTER32", ASN_COUNTER32 },	992	const_iv (ASN_NUMERIC_STRING)
445	{ "ASN_UNSIGNED32", ASN_UNSIGNED32 },	993	const_iv (ASN_PRINTABLE_STRING)
446	{ "ASN_TIMETICKS", ASN_TIMETICKS },	994	const_iv (ASN_TELETEX_STRING)
447	{ "ASN_OPAQUE", ASN_OPAQUE },	995	const_iv (ASN_T61_STRING)
448	{ "ASN_COUNTER64", ASN_COUNTER64 },	996	const_iv (ASN_VIDEOTEX_STRING)
		997	const_iv (ASN_IA5_STRING)
		998	const_iv (ASN_ASCII_STRING)
		999	const_iv (ASN_UTC_TIME)
		1000	const_iv (ASN_GENERALIZED_TIME)
		1001	const_iv (ASN_GRAPHIC_STRING)
		1002	const_iv (ASN_VISIBLE_STRING)
		1003	const_iv (ASN_ISO646_STRING)
		1004	const_iv (ASN_GENERAL_STRING)
		1005	const_iv (ASN_UNIVERSAL_STRING)
		1006	const_iv (ASN_CHARACTER_STRING)
		1007	const_iv (ASN_BMP_STRING)
449		1008
450	{ "BER_CLASS" , BER_CLASS },	1009	const_iv (ASN_UNIVERSAL)
451	{ "BER_TAG" , BER_TAG },	1010	const_iv (ASN_APPLICATION)
452	{ "BER_CONSTRUCTED", BER_CONSTRUCTED },	1011	const_iv (ASN_CONTEXT)
453	{ "BER_DATA" , BER_DATA },	1012	const_iv (ASN_PRIVATE)
		1013
		1014	const_iv (BER_CLASS)
		1015	const_iv (BER_TAG)
		1016	const_iv (BER_CONSTRUCTED)
		1017	const_iv (BER_DATA)
		1018
		1019	const_iv (BER_TYPE_BYTES)
		1020	const_iv (BER_TYPE_UTF8)
		1021	const_iv (BER_TYPE_UCS2)
		1022	const_iv (BER_TYPE_UCS4)
		1023	const_iv (BER_TYPE_INT)
		1024	const_iv (BER_TYPE_OID)
		1025	const_iv (BER_TYPE_RELOID)
		1026	const_iv (BER_TYPE_NULL)
		1027	const_iv (BER_TYPE_BOOL)
		1028	const_iv (BER_TYPE_REAL)
		1029	const_iv (BER_TYPE_IPADDRESS)
		1030	const_iv (BER_TYPE_CROAK)
		1031
		1032	const_iv (SNMP_IPADDRESS)
		1033	const_iv (SNMP_COUNTER32)
		1034	const_iv (SNMP_UNSIGNED32)
		1035	const_iv (SNMP_TIMETICKS)
		1036	const_iv (SNMP_OPAQUE)
		1037	const_iv (SNMP_COUNTER64)
454	};	1038	};
455		1039
456	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1040	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));	1041	newCONSTSUB (stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
458	}	1042	}
459		1043
460	SV *	1044	SV *
461	ber_decode (SV *ber)	1045	ber_decode (SV ber, SV profile = &PL_sv_undef)
462	CODE:	1046	CODE:
463	{	1047	{
		1048	cur_profile = SvPROFILE (profile);
		1049	STRLEN len;
464	buf = SvPVbyte (ber, len);	1050	buf = (U8 *)SvPVbyte (ber, len);
465	cur = buf;	1051	cur = buf;
466	rem = len;	1052	end = buf + len;
467		1053
468	RETVAL = decode_ber ();	1054	RETVAL = decode_ber ();
469	}	1055	}
470	OUTPUT: RETVAL	1056	OUTPUT: RETVAL
471		1057
472	void	1058	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)	1059	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:	1060	PPCODE:
476	{	1061	{
477	if (!SvOK (tuple))	1062	if (!SvOK (tuple))
478	XSRETURN_NO;	1063	XSRETURN_NO;
479		1064
480	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1065	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)
481	croak ("ber_seq: tuple must be ber tuple (array-ref)");	1066	croak ("ber_is: tuple must be BER tuple (array-ref)");
482		1067
483	AV av = (AV )SvRV (tuple);	1068	AV av = (AV )SvRV (tuple);
484		1069
485	XPUSHs (	1070	XPUSHs (
486	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS ]) == SvIV (klass))	1071	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS ]) == SvIV (klass))
487	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))	1072	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))
488	&& (!SvOK (constructed) \|\| !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) == !SvIV (constructed))	1073	&& (!SvOK (constructed) \|\| !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) == !SvIV (constructed))
489	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))	1074	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))
490	? &PL_sv_yes : &PL_sv_no);	1075	? &PL_sv_yes : &PL_sv_undef);
491	}	1076	}
492		1077
493	void	1078	void
494	ber_is_seq (SV *tuple)	1079	ber_is_seq (SV *tuple)
495	PROTOTYPE: $
496	PPCODE:	1080	PPCODE:
497	{	1081	{
498	if (!SvOK (tuple))	1082	if (!SvOK (tuple))
499	XSRETURN_UNDEF;	1083	XSRETURN_UNDEF;
500		1084
501	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1085	AV *av = ber_tuple (tuple);
502	croak ("ber_seq: tuple must be ber tuple (array-ref)");
503
504	AV av = (AV )SvRV (tuple);
505		1086
506	XPUSHs (	1087	XPUSHs (
507	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1088	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL
508	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE	1089	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE
509	&& SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1090	&& SvIV (AvARRAY (av)[BER_CONSTRUCTED])
510	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);	1091	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);
511	}	1092	}
512		1093
513	void	1094	void
514	ber_is_i32 (SV *tuple, IV value)	1095	ber_is_i32 (SV tuple, SV value = &PL_sv_undef)
515	PROTOTYPE: $$
516	PPCODE:	1096	PPCODE:
517	{	1097	{
518	if (!SvOK (tuple))	1098	if (!SvOK (tuple))
519	XSRETURN_NO;	1099	XSRETURN_NO;
520		1100
521	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1101	AV *av = ber_tuple (tuple);
522	croak ("ber_seq: tuple must be ber tuple (array-ref)");
523		1102
524	AV av = (AV )SvRV (tuple);	1103	IV data = SvIV (AvARRAY (av)[BER_DATA]);
525		1104
526	XPUSHs (	1105	XPUSHs (
527	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1106	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL
528	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER32	1107	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER32
529	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1108	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])
530	&& SvIV (AvARRAY (av)[BER_DATA ]) == value	1109	&& (!SvOK (value) \|\| data == SvIV (value))
531	? &PL_sv_yes : &PL_sv_no);	1110	? sv_2mortal (data ? newSViv (data) : newSVpv ("0 but true", 0))
		1111	: &PL_sv_undef);
532	}	1112	}
533		1113
534	void	1114	void
535	ber_is_oid (SV tuple, SV oid)	1115	ber_is_oid (SV tuple, SV oid = &PL_sv_undef)
536	PROTOTYPE: $$
537	PPCODE:	1116	PPCODE:
538	{	1117	{
539	if (!SvOK (tuple))	1118	if (!SvOK (tuple))
540	XSRETURN_NO;	1119	XSRETURN_NO;
541		1120
542	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1121	AV *av = ber_tuple (tuple);
543	croak ("ber_seq: tuple must be ber tuple (array-ref)");
544
545	AV av = (AV )SvRV (tuple);
546		1122
547	XPUSHs (	1123	XPUSHs (
548	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1124	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL
549	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER	1125	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER
550	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1126	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])
551	&& sv_eq (AvARRAY (av)[BER_DATA], oid)	1127	&& (!SvOK (oid) \|\| sv_eq (AvARRAY (av)[BER_DATA], oid))
552	? &PL_sv_yes : &PL_sv_no);	1128	? newSVsv (AvARRAY (av)[BER_DATA]) : &PL_sv_undef);
553	}	1129	}
554		1130
		1131	#############################################################################
		1132
		1133	void
		1134	ber_encode (SV tuple, SV profile = &PL_sv_undef)
		1135	PPCODE:
		1136	{
		1137	cur_profile = SvPROFILE (profile);
		1138	buf_sv = sv_2mortal (NEWSV (0, 256));
		1139	SvPOK_only (buf_sv);
		1140	set_buf (buf_sv);
		1141
		1142	encode_ber (tuple);
		1143
		1144	SvCUR_set (buf_sv, cur - buf);
		1145	XPUSHs (buf_sv);
		1146	}
		1147
		1148	SV *
		1149	ber_i32 (IV iv)
		1150	CODE:
		1151	{
		1152	AV *av = newAV ();
		1153	av_fill (av, BER_ARRAYSIZE - 1);
		1154	AvARRAY (av)[BER_CLASS ] = newSVcacheint (ASN_UNIVERSAL);
		1155	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_INTEGER32);
		1156	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (0);
		1157	AvARRAY (av)[BER_DATA ] = newSViv (iv);
		1158	RETVAL = newRV_noinc ((SV *)av);
		1159	}
		1160	OUTPUT: RETVAL
		1161
		1162	# TODO: not arrayref, but elements?
		1163	SV *
		1164	ber_seq (SV *arrayref)
		1165	CODE:
		1166	{
		1167	AV *av = newAV ();
		1168	av_fill (av, BER_ARRAYSIZE - 1);
		1169	AvARRAY (av)[BER_CLASS ] = newSVcacheint (ASN_UNIVERSAL);
		1170	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_SEQUENCE);
		1171	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (1);
		1172	AvARRAY (av)[BER_DATA ] = newSVsv (arrayref);
		1173	RETVAL = newRV_noinc ((SV *)av);
		1174	}
		1175	OUTPUT: RETVAL
		1176
		1177	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS::Profile
		1178
		1179	SV *
		1180	new (SV *klass)
		1181	CODE:
		1182	RETVAL = profile_new ();
		1183	OUTPUT: RETVAL
		1184
		1185	void
		1186	set (SV *profile, int klass, int tag, int type)
		1187	CODE:
		1188	profile_set (SvPROFILE (profile), klass, tag, type);
		1189
		1190	IV
		1191	get (SV *profile, int klass, int tag)
		1192	CODE:
		1193	RETVAL = profile_lookup (SvPROFILE (profile), klass, tag);
		1194	OUTPUT: RETVAL
		1195
		1196	void
		1197	_set_default (SV *profile)
		1198	CODE:
		1199	default_profile = SvPROFILE (profile);
		1200
		1201

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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 1.13 by root, Sat Apr 20 13:46:14 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 1.13 by root, Sat Apr 20 13:46:14 2019 UTC