[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 1.15 by root, Sat Apr 20 15:23:26 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_INTEGER = 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 (void)
		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_INTEGER , 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 UV
127	get_ber (void)	254	get_w (void)
128	{	255	{
129	U32 res = 0;	256	UV res = 0;
130		257
131	for (;;)	258	for (;;)
132	{	259	{
133	U8 c = get_u8 ();	260	U8 c = get_u8 ();
134	res = (res << 7) \| (c & 0x7f);	261	res = (res << 7) \| (c & 0x7f);
…		…
136	if (!(c & 0x80))	263	if (!(c & 0x80))
137	return res;	264	return res;
138	}	265	}
139	}	266	}
140		267
141	static U32	268	static UV
142	get_length (void)	269	get_length (void)
143	{	270	{
144	U32 res = get_u8 ();	271	UV res = get_u8 ();
145		272
146	if (res & 0x80)	273	if (res & 0x80)
147	{	274	{
148	int cnt = res & 0x7f;	275	int cnt = res & 0x7f;
149	res = 0;	276	res = 0;
…		…
156		283
157	default:	284	default:
158	error ("ASN.1 length too long");	285	error ("ASN.1 length too long");
159	return 0;	286	return 0;
160		287
		288	case 8: res = (res << 8) \| get_u8 ();
		289	case 7: res = (res << 8) \| get_u8 ();
		290	case 6: res = (res << 8) \| get_u8 ();
		291	case 5: res = (res << 8) \| get_u8 ();
161	case 4: res = (res << 8) \| get_u8 ();	292	case 4: res = (res << 8) \| get_u8 ();
162	case 3: res = (res << 8) \| get_u8 ();	293	case 3: res = (res << 8) \| get_u8 ();
163	case 2: res = (res << 8) \| get_u8 ();	294	case 2: res = (res << 8) \| get_u8 ();
164	case 1: res = (res << 8) \| get_u8 ();	295	case 1: res = (res << 8) \| get_u8 ();
165	}	296	}
166	}	297	}
167		298
168	return res;	299	return res;
169	}	300	}
170		301
171	static U32	302	static SV *
172	get_integer32 (void)	303	decode_int (void)
173	{	304	{
174	U32 length = get_length ();	305	UV len = get_length ();
175		306
176	if (length <= 0)	307	if (!len)
177	{	308	{
178	error ("INTEGER32 length equal to zero");	309	error ("invalid integer length equal to zero");
179	return 0;	310	return 0;
180	}	311	}
181		312
182	U8 *data = get_n (length, 0);	313	U8 *data = get_n (len);
183		314
184	if (!data)	315	int negative = data [0] & 0x80;
185	return 0;
186		316
187	if (length > 5 \|\| (length > 4 && data [0]))	317	UV val = negative ? -1 : 0; // copy signbit to all bits
188	{
189	error ("INTEGER32 length too long");
190	return 0;
191	}
192		318
193	U32 res = data [0] & 0x80 ? 0xffffffff : 0;	319	do
194
195	while (length--)
196	res = (res << 8) \| *data++;	320	val = (val << 8) \| *data++;
		321	while (--len);
197		322
198	return res;	323	// the cast to IV relies on implementation-defined behaviour (two's complement cast)
		324	// but that's ok, as perl relies on it as well.
		325	return negative ? newSViv ((IV)val) : newSVuv (val);
199	}	326	}
200		327
201	static SV *	328	static SV *
202	decode_integer32 (void)	329	decode_data (void)
203	{	330	{
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 ();	331	UV len = get_length ();
219		332	return newSVpvn ((char *)get_n (len), len);
220	if (length <= 0)
221	{
222	error ("INTEGER64 length equal to zero");
223	return 0;
224	}
225
226	U8 *data = get_n (length, 0);
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	}	333	}
244		334
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);
272	}
273
274	// gelper for decode_object_identifier	335	// helper for decode_object_identifier
275	static char *	336	static char *
276	write_uv (char *buf, U32 u)	337	write_uv (char *buf, UV u)
277	{	338	{
278	// the one-digit case is absolutely predominant, so this pays off (hopefully)	339	// the one-digit case is absolutely predominant, so this pays off (hopefully)
279	if (u < 10)	340	if (expect_true (u < 10))
280	*buf++ = u + '0';	341	*buf++ = u + '0';
281	else	342	else
282	{	343	{
		344	// this could be done much faster using branchless fixed-point arithmetics
283	char *beg = buf;	345	char *beg = buf;
284		346
285	do	347	do
286	{	348	{
287	*buf++ = u % 10 + '0';	349	*buf++ = u % 10 + '0';
288	u /= 10;	350	u /= 10;
289	}	351	}
290	while (u);	352	while (u);
291		353
292	// reverse digits	354	// reverse digits
293	for (char *ptr = buf; --ptr != beg; ++beg)	355	char *ptr = buf;
		356	while (--ptr > beg)
294	{	357	{
295	char c = *ptr;	358	char c = *ptr;
296	ptr = beg;	359	ptr = beg;
297	*beg = c;	360	*beg = c;
		361	++beg;
298	}	362	}
299	}	363	}
300		364
301	return buf;	365	return buf;
302	}	366	}
303		367
304	static SV *	368	static SV *
305	decode_object_identifier (void)	369	decode_oid (int relative)
306	{	370	{
307	U32 length = get_length ();	371	UV len = get_length ();
308		372
309	if (length <= 0)	373	if (len <= 0)
310	{	374	{
311	error ("OBJECT IDENTIFIER length equal to zero");	375	error ("OBJECT IDENTIFIER length equal to zero");
312	return &PL_sv_undef;	376	return &PL_sv_undef;
313	}	377	}
314		378
315	U8 *end = cur + length;	379	U8 *end = cur + len;
316	U32 w = get_ber ();	380	UV w = get_w ();
317		381
318	static char oid[MAX_OID_STRLEN]; // must be static	382	static char oid[MAX_OID_STRLEN]; // static, becaueds too large for stack
319	char *app = oid;	383	char *app = oid;
320		384
		385	if (relative)
		386	app = write_uv (app, w);
		387	else
		388	{
321	app = write_uv (app, (U8)w / 40);	389	app = write_uv (app, (U8)w / 40);
322	*app++ = '.';	390	*app++ = '.';
323	app = write_uv (app, (U8)w % 40);	391	app = write_uv (app, (U8)w % 40);
		392	}
324		393
		394	while (cur < end)
		395	{
325	// we assume an oid component is never > 64 bytes	396	// we assume an oid component is never > 64 digits
326	while (cur < end && oid + sizeof (oid) - app > 64)	397	if (oid + sizeof (oid) - app < 64)
327	{	398	croak ("BER_TYPE_OID to long to decode");
		399
328	w = get_ber ();	400	w = get_w ();
329	*app++ = '.';	401	*app++ = '.';
330	app = write_uv (app, w);	402	app = write_uv (app, w);
331	}	403	}
332		404
333	return newSVpvn (oid, app - oid);	405	return newSVpvn (oid, app - oid);
334	}	406	}
335		407
		408	// TODO: this is unacceptably slow
336	static SV *	409	static SV *
		410	decode_ucs (int chrsize)
		411	{
		412	SV *res = NEWSV (0, 0);
		413
		414	UV len = get_length ();
		415
		416	if (len & (chrsize - 1))
		417	croak ("BER_TYPE_UCS has an invalid number of octets (%d)", len);
		418
		419	while (len)
		420	{
		421	U8 b1 = get_u8 ();
		422	U8 b2 = get_u8 ();
		423	U32 chr = (b1 << 8) \| b2;
		424
		425	if (chrsize == 4)
		426	{
		427	U8 b3 = get_u8 ();
		428	U8 b4 = get_u8 ();
		429	chr = (chr << 16) \| (b3 << 8) \| b4;
		430	}
		431
		432	U8 uchr [UTF8_MAXBYTES];
		433	int uclen = uvuni_to_utf8 (uchr, chr) - uchr;
		434
		435	sv_catpvn (res, (const char *)uchr, uclen);
		436	len -= chrsize;
		437	}
		438
		439	SvUTF8_on (res);
		440
		441	return res;
		442	}
		443
		444	static SV *
337	decode_ber ()	445	decode_ber (void)
338	{	446	{
339	int identifier = get_u8 ();	447	int identifier = get_u8 ();
340		448
341	SV *res;	449	SV *res;
342		450
343	int constructed = identifier & ASN_CONSTRUCTED;	451	int constructed = identifier & ASN_CONSTRUCTED;
344	int klass = identifier & ASN_CLASS_MASK;	452	int klass = (identifier & ASN_CLASS_MASK) >> ASN_CLASS_SHIFT;
345	int tag = identifier & ASN_TAG_MASK;	453	int tag = identifier & ASN_TAG_MASK;
346		454
347	if (tag == ASN_TAG_BER)	455	if (tag == ASN_TAG_BER)
348	tag = get_ber ();	456	tag = get_w ();
349		457
350	if (tag == ASN_TAG_BER)	458	if (tag == ASN_TAG_BER)
351	tag = get_ber ();	459	tag = get_w ();
352		460
353	if (constructed)	461	if (constructed)
354	{	462	{
355	U32 len = get_length ();	463	UV len = get_length ();
356	U32 seqend = (cur - buf) + len;	464	UV seqend = (cur - buf) + len;
357	AV av = (AV )sv_2mortal ((SV *)newAV ());	465	AV av = (AV )sv_2mortal ((SV *)newAV ());
358		466
359	while (cur < buf + seqend)	467	while (cur < buf + seqend)
360	av_push (av, decode_ber ());	468	av_push (av, decode_ber ());
361		469
…		…
363	croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend);	471	croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend);
364		472
365	res = newRV_inc ((SV *)av);	473	res = newRV_inc ((SV *)av);
366	}	474	}
367	else	475	else
368	switch (identifier)	476	switch (profile_lookup (cur_profile, klass, tag))
369	{	477	{
370	case ASN_NULL:	478	case BER_TYPE_NULL:
		479	{
		480	UV len = get_length ();
		481
		482	if (len)
		483	croak ("BER_TYPE_NULL value with non-zero length %d encountered", len);
		484
371	res = &PL_sv_undef;	485	res = &PL_sv_undef;
		486	}
372	break;	487	break;
373		488
374	case ASN_OBJECT_IDENTIFIER:	489	case BER_TYPE_BOOL:
		490	{
		491	UV len = get_length ();
		492
		493	if (len != 1)
		494	croak ("BER_TYPE_BOOLEAN value with invalid length %d encountered", len);
		495
		496	res = newSVcacheint (!!get_u8 ());
		497	}
		498	break;
		499
		500	case BER_TYPE_OID:
375	res = decode_object_identifier ();	501	res = decode_oid (0);
376	break;	502	break;
377		503
378	case ASN_INTEGER32:	504	case BER_TYPE_RELOID:
		505	res = decode_oid (1);
		506	break;
		507
		508	case BER_TYPE_INT:
379	res = decode_integer32 ();	509	res = decode_int ();
380	break;	510	break;
381		511
382	case ASN_APPLICATION \| ASN_UNSIGNED32:	512	case BER_TYPE_UTF8:
383	case ASN_APPLICATION \| ASN_COUNTER32:	513	res = decode_data ();
384	case ASN_APPLICATION \| ASN_TIMETICKS:	514	SvUTF8_on (res);
		515	break;
		516
		517	case BER_TYPE_BYTES:
		518	res = decode_data ();
		519	break;
		520
		521	case BER_TYPE_IPADDRESS:
		522	{
		523	UV len = get_length ();
		524
		525	if (len != 4)
		526	croak ("BER_TYPE_IPADDRESS type with invalid length %d encountered", len);
		527
		528	U8 c1 = get_u8 ();
		529	U8 c2 = get_u8 ();
		530	U8 c3 = get_u8 ();
		531	U8 c4 = get_u8 ();
		532
		533	res = newSVpvf ("%d.%d.%d.%d", c1, c2, c3, c4);
		534	}
		535	break;
		536
		537	case BER_TYPE_UCS2:
		538	res = decode_ucs (2);
		539	break;
		540
		541	case BER_TYPE_UCS4:
385	res = decode_unsigned32 ();	542	res = decode_ucs (4);
386	break;	543	break;
387		544
388	#if 0 // handled by default case	545	case BER_TYPE_REAL:
389	case ASN_OCTET_STRING:	546	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:	547	default:
401	res = decode_octet_string ();	548	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
402	break;
403	}	549	}
404		550
405	AV *av = newAV ();	551	AV *av = newAV ();
406	av_fill (av, BER_ARRAYSIZE - 1);	552	av_fill (av, BER_ARRAYSIZE - 1);
407	AvARRAY (av)[BER_CLASS ] = newSVcacheint (klass >> ASN_CLASS_SHIFT);	553	AvARRAY (av)[BER_CLASS ] = newSVcacheint (klass);
408	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);	554	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);
409	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (constructed ? 1 : 0);	555	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (constructed ? 1 : 0);
410	AvARRAY (av)[BER_DATA ] = res;	556	AvARRAY (av)[BER_DATA ] = res;
411		557
412	return newRV_noinc ((SV *)av);	558	return newRV_noinc ((SV *)av);
413	}	559	}
414		560
		561	/////////////////////////////////////////////////////////////////////////////
		562	// encoder
		563
		564	/* adds two STRLENs together, slow, and with paranoia */
		565	static STRLEN
		566	strlen_sum (STRLEN l1, STRLEN l2)
		567	{
		568	size_t sum = l1 + l2;
		569
		570	if (sum < (size_t)l2 \|\| sum != (size_t)(STRLEN)sum)
		571	croak ("JSON::XS: string size overflow");
		572
		573	return sum;
		574	}
		575
		576	static void
		577	set_buf (SV *sv)
		578	{
		579	STRLEN len;
		580	buf_sv = sv;
		581	buf = (U8 *)SvPVbyte (buf_sv, len);
		582	cur = buf;
		583	end = buf + len;
		584	}
		585
		586	/* similar to SvGROW, but somewhat safer and guarantees exponential realloc strategy */
		587	static char *
		588	my_sv_grow (SV *sv, size_t len1, size_t len2)
		589	{
		590	len1 = strlen_sum (len1, len2);
		591	len1 = strlen_sum (len1, len1 >> 1);
		592
		593	if (len1 > 4096 - 24)
		594	len1 = (len1 \| 4095) - 24;
		595
		596	return SvGROW (sv, len1);
		597	}
		598
		599	static void
		600	need (STRLEN len)
		601	{
		602	if (expect_false ((uintptr_t)(end - cur) < len))
		603	{
		604	STRLEN pos = cur - buf;
		605	buf = (U8 *)my_sv_grow (buf_sv, pos, len);
		606	cur = buf + pos;
		607	end = buf + SvLEN (buf_sv) - 1;
		608	}
		609	}
		610
		611	static void
		612	put_u8 (int val)
		613	{
		614	need (1);
		615	*cur++ = val;
		616	}
		617
		618	static void
		619	put_w_nocheck (UV val)
		620	{
		621	#if UVSIZE > 4
		622	cur = (val >> 7 9) \| 0x80; cur += val >= ((UV)1 << (7 * 9));
		623	cur = (val >> 7 8) \| 0x80; cur += val >= ((UV)1 << (7 * 8));
		624	cur = (val >> 7 7) \| 0x80; cur += val >= ((UV)1 << (7 * 7));
		625	cur = (val >> 7 6) \| 0x80; cur += val >= ((UV)1 << (7 * 6));
		626	cur = (val >> 7 5) \| 0x80; cur += val >= ((UV)1 << (7 * 5));
		627	#endif
		628	cur = (val >> 7 4) \| 0x80; cur += val >= ((UV)1 << (7 * 4));
		629	cur = (val >> 7 3) \| 0x80; cur += val >= ((UV)1 << (7 * 3));
		630	cur = (val >> 7 2) \| 0x80; cur += val >= ((UV)1 << (7 * 2));
		631	cur = (val >> 7 1) \| 0x80; cur += val >= ((UV)1 << (7 * 1));
		632	*cur = val & 0x7f; cur += 1;
		633	}
		634
		635	static void
		636	put_w (UV val)
		637	{
		638	need (5); // we only handle up to 5 bytes
		639
		640	put_w_nocheck (val);
		641	}
		642
		643	static U8 *
		644	put_length_at (UV val, U8 *cur)
		645	{
		646	if (val < 0x7fU)
		647	*cur++ = val;
		648	else
		649	{
		650	U8 *lenb = cur++;
		651
		652	#if UVSIZE > 4
		653	cur = val >> 56; cur += cur > 0;
		654	cur = val >> 48; cur += cur > 0;
		655	cur = val >> 40; cur += cur > 0;
		656	cur = val >> 32; cur += cur > 0;
		657	#endif
		658	cur = val >> 24; cur += cur > 0;
		659	cur = val >> 16; cur += cur > 0;
		660	cur = val >> 8; cur += cur > 0;
		661	*cur = val ; cur += 1;
		662
		663	*lenb = 0x80 + cur - lenb - 1;
		664	}
		665
		666	return cur;
		667	}
		668
		669	static void
		670	put_length (UV val)
		671	{
		672	need (5 + val);
		673	cur = put_length_at (val, cur);
		674	}
		675
		676	// return how many bytes the encoded length requires
		677	static int length_length (UV val)
		678	{
		679	return val < 0x7fU
		680	? 1
		681	: 2
		682	+ (val > 0xffU)
		683	+ (val > 0xffffU)
		684	+ (val > 0xffffffU)
		685	#if UVSIZE > 4
		686	+ (val > 0xffffffffU)
		687	+ (val > 0xffffffffffU)
		688	+ (val > 0xffffffffffffU)
		689	+ (val > 0xffffffffffffffU)
		690	#endif
		691	;
		692	}
		693
		694	static void
		695	encode_data (const char *ptr, STRLEN len)
		696	{
		697	put_length (len);
		698	memcpy (cur, ptr, len);
		699	cur += len;
		700	}
		701
		702	static void
		703	encode_uv (UV uv)
		704	{
		705	}
		706
		707	static void
		708	encode_int (SV *sv)
		709	{
		710	need (8 + 1 + 1); // 64 bit + length + extra 0
		711
		712	if (expect_false (!SvIOK (sv)))
		713	sv_2iv_flags (sv, 0);
		714
		715	U8 *lenb = cur++;
		716
		717	if (SvIOK_notUV (sv))
		718	{
		719	IV iv = SvIVX (sv);
		720
		721	if (expect_false (iv < 0))
		722	{
		723	// get two's complement bit pattern - works even on hypothetical non-2c machines
		724	UV uv = iv;
		725
		726	#if UVSIZE > 4
		727	*cur = uv >> 56; cur += !!(~uv & 0xff80000000000000U);
		728	*cur = uv >> 48; cur += !!(~uv & 0xffff800000000000U);
		729	*cur = uv >> 40; cur += !!(~uv & 0xffffff8000000000U);
		730	*cur = uv >> 32; cur += !!(~uv & 0xffffffff80000000U);
		731	#endif
		732	*cur = uv >> 24; cur += !!(~uv & 0xffffffffff800000U);
		733	*cur = uv >> 16; cur += !!(~uv & 0xffffffffffff8000U);
		734	*cur = uv >> 8; cur += !!(~uv & 0xffffffffffffff80U);
		735	*cur = uv ; cur += 1;
		736
		737	*lenb = cur - lenb - 1;
		738
		739	return;
		740	}
		741	}
		742
		743	UV uv = SvUV (sv);
		744
		745	// prepend an extra 0 if the high bit is 1
		746	cur = 0; cur += !!(uv & ((UV)1 << (UVSIZE 8 - 1)));
		747
		748	#if UVSIZE > 4
		749	*cur = uv >> 56; cur += !!(uv & 0xff80000000000000U);
		750	*cur = uv >> 48; cur += !!(uv & 0xffff800000000000U);
		751	*cur = uv >> 40; cur += !!(uv & 0xffffff8000000000U);
		752	*cur = uv >> 32; cur += !!(uv & 0xffffffff80000000U);
		753	#endif
		754	*cur = uv >> 24; cur += !!(uv & 0xffffffffff800000U);
		755	*cur = uv >> 16; cur += !!(uv & 0xffffffffffff8000U);
		756	*cur = uv >> 8; cur += !!(uv & 0xffffffffffffff80U);
		757	*cur = uv ; cur += 1;
		758
		759	*lenb = cur - lenb - 1;
		760	}
		761
		762	// we don't know the length yet, so we optimistically
		763	// assume the length will need one octet later. If that
		764	// turns out to be wrong, we memmove as needed.
		765	// mark the beginning
		766	static STRLEN
		767	len_fixup_mark (void)
		768	{
		769	return cur++ - buf;
		770	}
		771
		772	// patch up the length
		773	static void
		774	len_fixup (STRLEN mark)
		775	{
		776	STRLEN reallen = (cur - buf) - mark - 1;
		777	int lenlen = length_length (reallen);
		778
		779	if (expect_false (lenlen > 1))
		780	{
		781	// bad luck, we have to shift the bytes to make room for the length
		782	need (5);
		783	memmove (buf + mark + lenlen, buf + mark + 1, reallen);
		784	cur += lenlen - 1;
		785	}
		786
		787	put_length_at (reallen, buf + mark);
		788	}
		789
		790	static char *
		791	read_uv (char str, UV uv)
		792	{
		793	UV r = 0;
		794
		795	while (*str >= '0')
		796	r = r * 10 + *str++ - '0';
		797
		798	*uv = r;
		799
		800	str += !!*str; // advance over any non-zero byte
		801
		802	return str;
		803	}
		804
		805	static void
		806	encode_oid (SV *oid, int relative)
		807	{
		808	STRLEN len;
		809	char *ptr = SvPV (oid, len); // utf8 vs. bytes does not matter
		810
		811	// we need at most as many octets as the string form
		812	need (len + 1);
		813	STRLEN mark = len_fixup_mark ();
		814
		815	UV w1, w2;
		816
		817	if (!relative)
		818	{
		819	ptr = read_uv (ptr, &w1);
		820	ptr = read_uv (ptr, &w2);
		821
		822	put_w_nocheck (w1 * 40 + w2);
		823	}
		824
		825	while (*ptr)
		826	{
		827	ptr = read_uv (ptr, &w1);
		828	put_w_nocheck (w1);
		829	}
		830
		831	len_fixup (mark);
		832	}
		833
		834	// check whether an SV is a BER tuple and returns its AV *
		835	static AV *
		836	ber_tuple (SV *tuple)
		837	{
		838	SV *rv;
		839
		840	if (expect_false (!SvROK (tuple) \|\| SvTYPE ((rv = SvRV (tuple))) != SVt_PVAV))
		841	croak ("BER tuple must be array-reference");
		842
		843	if (expect_false (SvRMAGICAL (rv)))
		844	croak ("BER tuple must not be tied");
		845
		846	if (expect_false (AvFILL ((AV *)rv) != BER_ARRAYSIZE - 1))
		847	croak ("BER tuple must contain exactly %d elements, not %d", BER_ARRAYSIZE, AvFILL ((AV *)rv) + 1);
		848
		849	return (AV *)rv;
		850	}
		851
		852	static void
		853	encode_ucs (SV *data, int chrsize)
		854	{
		855	STRLEN uchars = sv_len_utf8 (data);
		856	STRLEN len;;
		857	char *ptr = SvPVutf8 (data, len);
		858
		859	put_length (uchars * chrsize);
		860
		861	while (uchars--)
		862	{
		863	STRLEN uclen;
		864	UV uchr = utf8_to_uvchr_buf ((U8 )ptr, (U8 )ptr + len, &uclen);
		865
		866	ptr += uclen;
		867	len -= uclen;
		868
		869	if (chrsize == 4)
		870	{
		871	*cur++ = uchr >> 24;
		872	*cur++ = uchr >> 16;
		873	}
		874
		875	*cur++ = uchr >> 8;
		876	*cur++ = uchr;
		877	}
		878	}
		879	static void
		880	encode_ber (SV *tuple)
		881	{
		882	AV *av = ber_tuple (tuple);
		883
		884	int klass = SvIV (AvARRAY (av)[BER_CLASS]);
		885	int tag = SvIV (AvARRAY (av)[BER_TAG]);
		886	int constructed = SvIV (AvARRAY (av)[BER_CONSTRUCTED]) ? ASN_CONSTRUCTED : 0;
		887	SV *data = AvARRAY (av)[BER_DATA];
		888
		889	int identifier = (klass << ASN_CLASS_SHIFT) \| constructed;
		890
		891	if (expect_false (tag >= ASN_TAG_BER))
		892	{
		893	put_u8 (identifier \| ASN_TAG_BER);
		894	put_w (tag);
		895	}
		896	else
		897	put_u8 (identifier \| tag);
		898
		899	if (constructed)
		900	{
		901	// we optimistically assume that only one length byte is needed
		902	// and adjust later
		903	need (1);
		904	STRLEN mark = len_fixup_mark ();
		905
		906	if (expect_false (!SvROK (data) \|\| SvTYPE (SvRV (data)) != SVt_PVAV))
		907	croak ("BER constructed data must be array-reference");
		908
		909	AV av = (AV )SvRV (data);
		910	int fill = AvFILL (av);
		911
		912	if (expect_false (SvRMAGICAL (av)))
		913	croak ("BER constructed data must not be tied");
		914
		915	int i;
		916	for (i = 0; i <= fill; ++i)
		917	encode_ber (AvARRAY (av)[i]);
		918
		919	len_fixup (mark);
		920	}
		921	else
		922	switch (profile_lookup (cur_profile, klass, tag))
		923	{
		924	case BER_TYPE_NULL:
		925	put_length (0);
		926	break;
		927
		928	case BER_TYPE_BOOL:
		929	put_length (1);
		930	*cur++ = SvTRUE (data) ? 0xff : 0x00;
		931	break;
		932
		933	case BER_TYPE_OID:
		934	encode_oid (data, 0);
		935	break;
		936
		937	case BER_TYPE_RELOID:
		938	encode_oid (data, 1);
		939	break;
		940
		941	case BER_TYPE_INT:
		942	encode_int (data);
		943	break;
		944
		945	case BER_TYPE_BYTES:
		946	{
		947	STRLEN len;
		948	const char *ptr = SvPVbyte (data, len);
		949	encode_data (ptr, len);
		950	}
		951	break;
		952
		953	case BER_TYPE_UTF8:
		954	{
		955	STRLEN len;
		956	const char *ptr = SvPVutf8 (data, len);
		957	encode_data (ptr, len);
		958	}
		959	break;
		960
		961	case BER_TYPE_IPADDRESS:
		962	{
		963	U8 ip[4];
		964	sscanf (SvPV_nolen (data), "%hhu.%hhu.%hhu.%hhu", ip + 0, ip + 1, ip + 2, ip + 3);
		965	encode_data ((const char *)ip, sizeof (ip));
		966	}
		967	break;
		968
		969	case BER_TYPE_UCS2:
		970	encode_ucs (data, 2);
		971	break;
		972
		973	case BER_TYPE_UCS4:
		974	encode_ucs (data, 4);
		975	break;
		976
		977	case BER_TYPE_REAL:
		978	case BER_TYPE_CROAK:
		979	default:
		980	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
		981	}
		982
		983	}
		984
		985	/////////////////////////////////////////////////////////////////////////////
		986
415	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS	987	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS
416		988
417	PROTOTYPES: ENABLE	989	PROTOTYPES: ENABLE
418		990
419	BOOT:	991	BOOT:
420	{	992	{
421	HV *stash = gv_stashpv ("Convert::BER::XS", 1);	993	HV *stash = gv_stashpv ("Convert::BER::XS", 1);
		994
		995	profile_stash = gv_stashpv ("Convert::BER::XS::Profile", 1);
422		996
423	static const struct {	997	static const struct {
424	const char *name;	998	const char *name;
425	IV iv;	999	IV iv;
426	} *civ, const_iv[] = {	1000	} *civ, const_iv[] = {
427	{ "ASN_BOOLEAN", ASN_BOOLEAN },	1001	#define const_iv(name) { # name, name },
428	{ "ASN_INTEGER32", ASN_INTEGER32 },	1002	const_iv (ASN_BOOLEAN)
429	{ "ASN_BIT_STRING", ASN_BIT_STRING },	1003	const_iv (ASN_INTEGER)
430	{ "ASN_OCTET_STRING", ASN_OCTET_STRING },	1004	const_iv (ASN_BIT_STRING)
431	{ "ASN_NULL", ASN_NULL },	1005	const_iv (ASN_OCTET_STRING)
432	{ "ASN_OBJECT_IDENTIFIER", ASN_OBJECT_IDENTIFIER },	1006	const_iv (ASN_NULL)
433	{ "ASN_TAG_BER", ASN_TAG_BER },	1007	const_iv (ASN_OBJECT_IDENTIFIER)
434	{ "ASN_TAG_MASK", ASN_TAG_MASK },	1008	const_iv (ASN_OBJECT_DESCRIPTOR)
435	{ "ASN_CONSTRUCTED", ASN_CONSTRUCTED },	1009	const_iv (ASN_OID)
436	{ "ASN_UNIVERSAL", ASN_UNIVERSAL >> ASN_CLASS_SHIFT },	1010	const_iv (ASN_EXTERNAL)
437	{ "ASN_APPLICATION", ASN_APPLICATION >> ASN_CLASS_SHIFT },	1011	const_iv (ASN_REAL)
438	{ "ASN_CONTEXT", ASN_CONTEXT >> ASN_CLASS_SHIFT },	1012	const_iv (ASN_SEQUENCE)
439	{ "ASN_PRIVATE", ASN_PRIVATE >> ASN_CLASS_SHIFT },	1013	const_iv (ASN_ENUMERATED)
440	{ "ASN_CLASS_MASK", ASN_CLASS_MASK },	1014	const_iv (ASN_EMBEDDED_PDV)
441	{ "ASN_CLASS_SHIFT", ASN_CLASS_SHIFT },	1015	const_iv (ASN_UTF8_STRING)
442	{ "ASN_SEQUENCE", ASN_SEQUENCE },	1016	const_iv (ASN_RELATIVE_OID)
443	{ "ASN_IPADDRESS", ASN_IPADDRESS },	1017	const_iv (ASN_SET)
444	{ "ASN_COUNTER32", ASN_COUNTER32 },	1018	const_iv (ASN_NUMERIC_STRING)
445	{ "ASN_UNSIGNED32", ASN_UNSIGNED32 },	1019	const_iv (ASN_PRINTABLE_STRING)
446	{ "ASN_TIMETICKS", ASN_TIMETICKS },	1020	const_iv (ASN_TELETEX_STRING)
447	{ "ASN_OPAQUE", ASN_OPAQUE },	1021	const_iv (ASN_T61_STRING)
448	{ "ASN_COUNTER64", ASN_COUNTER64 },	1022	const_iv (ASN_VIDEOTEX_STRING)
		1023	const_iv (ASN_IA5_STRING)
		1024	const_iv (ASN_ASCII_STRING)
		1025	const_iv (ASN_UTC_TIME)
		1026	const_iv (ASN_GENERALIZED_TIME)
		1027	const_iv (ASN_GRAPHIC_STRING)
		1028	const_iv (ASN_VISIBLE_STRING)
		1029	const_iv (ASN_ISO646_STRING)
		1030	const_iv (ASN_GENERAL_STRING)
		1031	const_iv (ASN_UNIVERSAL_STRING)
		1032	const_iv (ASN_CHARACTER_STRING)
		1033	const_iv (ASN_BMP_STRING)
449		1034
450	{ "BER_CLASS" , BER_CLASS },	1035	const_iv (ASN_UNIVERSAL)
451	{ "BER_TAG" , BER_TAG },	1036	const_iv (ASN_APPLICATION)
452	{ "BER_CONSTRUCTED", BER_CONSTRUCTED },	1037	const_iv (ASN_CONTEXT)
453	{ "BER_DATA" , BER_DATA },	1038	const_iv (ASN_PRIVATE)
		1039
		1040	const_iv (BER_CLASS)
		1041	const_iv (BER_TAG)
		1042	const_iv (BER_CONSTRUCTED)
		1043	const_iv (BER_DATA)
		1044
		1045	const_iv (BER_TYPE_BYTES)
		1046	const_iv (BER_TYPE_UTF8)
		1047	const_iv (BER_TYPE_UCS2)
		1048	const_iv (BER_TYPE_UCS4)
		1049	const_iv (BER_TYPE_INT)
		1050	const_iv (BER_TYPE_OID)
		1051	const_iv (BER_TYPE_RELOID)
		1052	const_iv (BER_TYPE_NULL)
		1053	const_iv (BER_TYPE_BOOL)
		1054	const_iv (BER_TYPE_REAL)
		1055	const_iv (BER_TYPE_IPADDRESS)
		1056	const_iv (BER_TYPE_CROAK)
		1057
		1058	const_iv (SNMP_IPADDRESS)
		1059	const_iv (SNMP_COUNTER32)
		1060	const_iv (SNMP_UNSIGNED32)
		1061	const_iv (SNMP_TIMETICKS)
		1062	const_iv (SNMP_OPAQUE)
		1063	const_iv (SNMP_COUNTER64)
454	};	1064	};
455		1065
456	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1066	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));	1067	newCONSTSUB (stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
458	}	1068	}
459		1069
460	SV *	1070	SV *
461	ber_decode (SV *ber)	1071	ber_decode (SV ber, SV profile = &PL_sv_undef)
462	CODE:	1072	CODE:
463	{	1073	{
		1074	cur_profile = SvPROFILE (profile);
		1075	STRLEN len;
464	buf = SvPVbyte (ber, len);	1076	buf = (U8 *)SvPVbyte (ber, len);
465	cur = buf;	1077	cur = buf;
466	rem = len;	1078	end = buf + len;
467		1079
468	RETVAL = decode_ber ();	1080	RETVAL = decode_ber ();
469	}	1081	}
470	OUTPUT: RETVAL	1082	OUTPUT: RETVAL
471		1083
472	void	1084	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)	1085	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:	1086	PPCODE:
476	{	1087	{
477	if (!SvOK (tuple))	1088	if (!SvOK (tuple))
478	XSRETURN_NO;	1089	XSRETURN_NO;
479		1090
480	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1091	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)
481	croak ("ber_seq: tuple must be ber tuple (array-ref)");	1092	croak ("ber_is: tuple must be BER tuple (array-ref)");
482		1093
483	AV av = (AV )SvRV (tuple);	1094	AV av = (AV )SvRV (tuple);
484		1095
485	XPUSHs (	1096	XPUSHs (
486	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS ]) == SvIV (klass))	1097	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS ]) == SvIV (klass))
487	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))	1098	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))
488	&& (!SvOK (constructed) \|\| !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) == !SvIV (constructed))	1099	&& (!SvOK (constructed) \|\| !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) == !SvIV (constructed))
489	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))	1100	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))
490	? &PL_sv_yes : &PL_sv_no);	1101	? &PL_sv_yes : &PL_sv_undef);
491	}	1102	}
492		1103
493	void	1104	void
494	ber_is_seq (SV *tuple)	1105	ber_is_seq (SV *tuple)
495	PROTOTYPE: $
496	PPCODE:	1106	PPCODE:
497	{	1107	{
498	if (!SvOK (tuple))	1108	if (!SvOK (tuple))
499	XSRETURN_UNDEF;	1109	XSRETURN_UNDEF;
500		1110
501	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1111	AV *av = ber_tuple (tuple);
502	croak ("ber_seq: tuple must be ber tuple (array-ref)");
503
504	AV av = (AV )SvRV (tuple);
505		1112
506	XPUSHs (	1113	XPUSHs (
507	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1114	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL
508	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE	1115	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE
509	&& SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1116	&& SvIV (AvARRAY (av)[BER_CONSTRUCTED])
510	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);	1117	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);
511	}	1118	}
512		1119
513	void	1120	void
514	ber_is_i32 (SV *tuple, IV value)	1121	ber_is_int (SV tuple, SV value = &PL_sv_undef)
515	PROTOTYPE: $$
516	PPCODE:	1122	PPCODE:
517	{	1123	{
518	if (!SvOK (tuple))	1124	if (!SvOK (tuple))
519	XSRETURN_NO;	1125	XSRETURN_NO;
520		1126
521	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1127	AV *av = ber_tuple (tuple);
522	croak ("ber_seq: tuple must be ber tuple (array-ref)");
523		1128
524	AV av = (AV )SvRV (tuple);	1129	UV data = SvUV (AvARRAY (av)[BER_DATA]);
525		1130
526	XPUSHs (	1131	XPUSHs (
527	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1132	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL
528	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER32	1133	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER
529	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1134	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])
530	&& SvIV (AvARRAY (av)[BER_DATA ]) == value	1135	&& (!SvOK (value) \|\| data == SvUV (value))
531	? &PL_sv_yes : &PL_sv_no);	1136	? sv_2mortal (data ? newSVsv (AvARRAY (av)[BER_DATA]) : newSVpv ("0 but true", 0))
		1137	: &PL_sv_undef);
532	}	1138	}
533		1139
534	void	1140	void
535	ber_is_oid (SV tuple, SV oid)	1141	ber_is_oid (SV tuple, SV oid = &PL_sv_undef)
536	PROTOTYPE: $$
537	PPCODE:	1142	PPCODE:
538	{	1143	{
539	if (!SvOK (tuple))	1144	if (!SvOK (tuple))
540	XSRETURN_NO;	1145	XSRETURN_NO;
541		1146
542	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1147	AV *av = ber_tuple (tuple);
543	croak ("ber_seq: tuple must be ber tuple (array-ref)");
544
545	AV av = (AV )SvRV (tuple);
546		1148
547	XPUSHs (	1149	XPUSHs (
548	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1150	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL
549	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER	1151	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER
550	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1152	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])
551	&& sv_eq (AvARRAY (av)[BER_DATA], oid)	1153	&& (!SvOK (oid) \|\| sv_eq (AvARRAY (av)[BER_DATA], oid))
552	? &PL_sv_yes : &PL_sv_no);	1154	? newSVsv (AvARRAY (av)[BER_DATA]) : &PL_sv_undef);
553	}	1155	}
554		1156
		1157	#############################################################################
		1158
		1159	void
		1160	ber_encode (SV tuple, SV profile = &PL_sv_undef)
		1161	PPCODE:
		1162	{
		1163	cur_profile = SvPROFILE (profile);
		1164	buf_sv = sv_2mortal (NEWSV (0, 256));
		1165	SvPOK_only (buf_sv);
		1166	set_buf (buf_sv);
		1167
		1168	encode_ber (tuple);
		1169
		1170	SvCUR_set (buf_sv, cur - buf);
		1171	XPUSHs (buf_sv);
		1172	}
		1173
		1174	SV *
		1175	ber_int (SV *sv)
		1176	CODE:
		1177	{
		1178	AV *av = newAV ();
		1179	av_fill (av, BER_ARRAYSIZE - 1);
		1180	AvARRAY (av)[BER_CLASS ] = newSVcacheint (ASN_UNIVERSAL);
		1181	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_INTEGER);
		1182	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (0);
		1183	AvARRAY (av)[BER_DATA ] = newSVsv (sv);
		1184	RETVAL = newRV_noinc ((SV *)av);
		1185	}
		1186	OUTPUT: RETVAL
		1187
		1188	# TODO: not arrayref, but elements?
		1189	SV *
		1190	ber_seq (SV *arrayref)
		1191	CODE:
		1192	{
		1193	AV *av = newAV ();
		1194	av_fill (av, BER_ARRAYSIZE - 1);
		1195	AvARRAY (av)[BER_CLASS ] = newSVcacheint (ASN_UNIVERSAL);
		1196	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_SEQUENCE);
		1197	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (1);
		1198	AvARRAY (av)[BER_DATA ] = newSVsv (arrayref);
		1199	RETVAL = newRV_noinc ((SV *)av);
		1200	}
		1201	OUTPUT: RETVAL
		1202
		1203	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS::Profile
		1204
		1205	SV *
		1206	new (SV *klass)
		1207	CODE:
		1208	RETVAL = profile_new ();
		1209	OUTPUT: RETVAL
		1210
		1211	void
		1212	set (SV *profile, int klass, int tag, int type)
		1213	CODE:
		1214	profile_set (SvPROFILE (profile), klass, tag, type);
		1215
		1216	IV
		1217	get (SV *profile, int klass, int tag)
		1218	CODE:
		1219	RETVAL = profile_lookup (SvPROFILE (profile), klass, tag);
		1220	OUTPUT: RETVAL
		1221
		1222	void
		1223	_set_default (SV *profile)
		1224	CODE:
		1225	default_profile = SvPROFILE (profile);
		1226
		1227

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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 1.15 by root, Sat Apr 20 15:23:26 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 1.15 by root, Sat Apr 20 15:23:26 2019 UTC