1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
|
require 'optparse'
require 'erb'
opt = OptionParser.new
opt.def_option('-h', 'help') {
puts opt
exit 0
}
opt_o = nil
opt.def_option('-o FILE', 'specify output file') {|filename|
opt_o = filename
}
C_ESC = {
"\\" => "\\\\",
'"' => '\"',
"\n" => '\n',
}
0x00.upto(0x1f) {|ch| C_ESC[[ch].pack("C")] ||= "\\%03o" % ch }
0x7f.upto(0xff) {|ch| C_ESC[[ch].pack("C")] = "\\%03o" % ch }
C_ESC_PAT = Regexp.union(*C_ESC.keys)
def c_str(str)
'"' + str.gsub(C_ESC_PAT, C_ESC) + '"'
end
opt.parse!
result = ''
# workaround for NetBSD, OpenBSD and etc.
result << "#define pseudo_AF_FTIP pseudo_AF_RTIP\n"
h = {}
DATA.each_line {|s|
name, default_value = s.scan(/\S+/)
next unless name && name[0] != ?#
raise "duplicate name: #{name}" if h.has_key? name
h[name] = default_value
}
DEFS = h.to_a
def each_const
DEFS.each {|name, default_value|
if name =~ /\AINADDR_/
define = "sock_define_uconst"
else
define = "sock_define_const"
end
guard = nil
if /\A(AF_INET6|PF_INET6)\z/ =~ name
# IPv6 is not supported although AF_INET6 is defined on bcc32/mingw
guard = "defined(INET6)"
end
yield guard, define, name, default_value
}
end
def each_name(pat)
DEFS.each {|name, default_value|
next if pat !~ name
yield name
}
end
ERB.new(<<'EOS', nil, '%').def_method(Object, "gen_const_defs_in_guard(define, name, default_value)")
% if default_value
#ifndef <%=name%>
#define <%=name%> <%=default_value%>
#endif
<%=define%>(<%=c_str name%>, <%=name%>);
% else
#if defined(<%=name%>)
<%=define%>(<%=c_str name%>, <%=name%>);
#endif
% end
EOS
ERB.new(<<'EOS', nil, '%').def_method(Object, "gen_const_defs")
% each_const {|guard, define, name, default_value|
% if guard
#if <%=guard%>
<%= gen_const_defs_in_guard(define, name, default_value).chomp %>
#endif
% else
<%= gen_const_defs_in_guard(define, name, default_value).chomp %>
% end
% }
EOS
def reverse_each_name(pat)
DEFS.reverse_each {|name, default_value|
next if pat !~ name
yield name
}
end
def each_names_with_len(pat, prefix_optional=nil)
h = {}
DEFS.each {|name, default_value|
next if pat !~ name
(h[name.length] ||= []) << [name, name]
}
if prefix_optional
if Regexp === prefix_optional
prefix_pat = prefix_optional
else
prefix_pat = /\A#{Regexp.escape prefix_optional}/
end
DEFS.each {|const, default_value|
next if pat !~ const
next if prefix_pat !~ const
name = $'
(h[name.length] ||= []) << [name, const]
}
end
hh = {}
h.each {|len, pairs|
pairs.each {|name, const|
raise "name crash: #{name}" if hh[name]
hh[name] = true
}
}
h.keys.sort.each {|len|
yield h[len], len
}
end
ERB.new(<<'EOS', nil, '%').def_method(Object, "gen_name_to_int_func_in_guard(funcname, pat, prefix_optional, guard=nil)")
static int
<%=funcname%>(char *str, int len, int *valp)
{
switch (len) {
% each_names_with_len(pat, prefix_optional) {|pairs, len|
case <%=len%>:
% pairs.each {|name, const|
#ifdef <%=const%>
if (memcmp(str, <%=c_str name%>, <%=len%>) == 0) { *valp = <%=const%>; return 0; }
#endif
% }
return -1;
% }
default:
return -1;
}
}
EOS
ERB.new(<<'EOS', nil, '%').def_method(Object, "gen_name_to_int_func(funcname, pat, prefix_optional, guard=nil)")
%if guard
#ifdef <%=guard%>
<%=gen_name_to_int_func_in_guard(funcname, pat, prefix_optional, guard)%>
#endif
%else
<%=gen_name_to_int_func_in_guard(funcname, pat, prefix_optional, guard)%>
%end
EOS
def reverse_each_name_with_prefix_optional(pat, prefix_pat)
reverse_each_name(pat) {|n|
yield n, n
}
if prefix_pat
reverse_each_name(pat) {|n|
next if prefix_pat !~ n
yield n, $'
}
end
end
ERB.new(<<'EOS', nil, '%').def_method(Object, "gen_int_to_name_hash(hash_var, pat, prefix_pat)")
<%=hash_var%> = st_init_numtable();
% reverse_each_name_with_prefix_optional(pat, prefix_pat) {|n,s|
#ifdef <%=n%>
st_insert(<%=hash_var%>, (st_data_t)<%=n%>, (st_data_t)rb_intern2(<%=c_str s%>, <%=s.bytesize%>));
#endif
% }
EOS
ERB.new(<<'EOS', nil, '%').def_method(Object, "gen_int_to_name_func(func_name, hash_var)")
static ID
<%=func_name%>(int val)
{
st_data_t name;
if (st_lookup(<%=hash_var%>, (st_data_t)val, &name))
return (ID)name;
return 0;
}
EOS
INTERN_DEFS = []
def def_intern(func_name, pat, prefix_optional=nil)
prefix_pat = nil
if prefix_optional
if Regexp === prefix_optional
prefix_pat = prefix_optional
else
prefix_pat = /\A#{Regexp.escape prefix_optional}/
end
end
hash_var = "#{func_name}_hash"
decl = "static st_table *#{hash_var};"
gen_hash = gen_int_to_name_hash(hash_var, pat, prefix_pat)
func = gen_int_to_name_func(func_name, hash_var)
INTERN_DEFS << [decl, gen_hash, func]
end
def_intern('intern_family', /\AAF_/)
def_intern('intern_protocol_family', /\APF_/)
def_intern('intern_socktype', /\ASOCK_/)
def_intern('intern_ipproto', /\AIPPROTO_/)
result << ERB.new(<<'EOS', nil, '%').result(binding)
<%= INTERN_DEFS.map {|decl, gen_hash, func| decl }.join("\n") %>
static void
init_constants(VALUE mConst)
{
<%= gen_const_defs %>
<%= INTERN_DEFS.map {|decl, gen_hash, func| gen_hash }.join("\n") %>
}
<%= gen_name_to_int_func("family_to_int", /\A(AF_|PF_)/, "AF_") %>
<%= gen_name_to_int_func("socktype_to_int", /\ASOCK_/, "SOCK_") %>
<%= gen_name_to_int_func("level_to_int", /\A(SOL_SOCKET\z|IPPROTO_)/, /\A(SOL_|IPPROTO_)/) %>
<%= gen_name_to_int_func("so_optname_to_int", /\ASO_/, "SO_") %>
<%= gen_name_to_int_func("ip_optname_to_int", /\AIP_/, "IP_") %>
<%= gen_name_to_int_func("ipv6_optname_to_int", /\AIPV6_/, "IPV6_", "IPPROTO_IPV6") %>
<%= gen_name_to_int_func("tcp_optname_to_int", /\ATCP_/, "TCP_") %>
<%= gen_name_to_int_func("udp_optname_to_int", /\AUDP_/, "UDP_") %>
<%= gen_name_to_int_func("shutdown_how_to_int", /\ASHUT_/, "SHUT_") %>
<%= INTERN_DEFS.map {|decl, gen_hash, func| func }.join("\n") %>
EOS
if opt_o
File.open(opt_o, 'w') {|f|
f << result
}
else
$stdout << result
end
__END__
SOCK_STREAM
SOCK_DGRAM
SOCK_RAW
SOCK_RDM
SOCK_SEQPACKET
SOCK_PACKET
AF_UNSPEC
PF_UNSPEC
AF_INET
PF_INET
AF_INET6
PF_INET6
AF_UNIX
PF_UNIX
AF_AX25
PF_AX25
AF_IPX
PF_IPX
AF_APPLETALK
PF_APPLETALK
AF_LOCAL
PF_LOCAL
AF_IMPLINK
PF_IMPLINK
AF_PUP
PF_PUP
AF_CHAOS
PF_CHAOS
AF_NS
PF_NS
AF_ISO
PF_ISO
AF_OSI
PF_OSI
AF_ECMA
PF_ECMA
AF_DATAKIT
PF_DATAKIT
AF_CCITT
PF_CCITT
AF_SNA
PF_SNA
AF_DEC
PF_DEC
AF_DLI
PF_DLI
AF_LAT
PF_LAT
AF_HYLINK
PF_HYLINK
AF_ROUTE
PF_ROUTE
AF_LINK
PF_LINK
AF_COIP
PF_COIP
AF_CNT
PF_CNT
AF_SIP
PF_SIP
AF_NDRV
PF_NDRV
AF_ISDN
PF_ISDN
AF_NATM
PF_NATM
AF_SYSTEM
PF_SYSTEM
AF_NETBIOS
PF_NETBIOS
AF_PPP
PF_PPP
AF_ATM
PF_ATM
AF_NETGRAPH
PF_NETGRAPH
AF_MAX
PF_MAX
AF_PACKET
PF_PACKET
AF_E164
PF_XTP
PF_RTIP
PF_PIP
PF_KEY
MSG_OOB
MSG_PEEK
MSG_DONTROUTE
MSG_EOR
MSG_TRUNC
MSG_CTRUNC
MSG_WAITALL
MSG_DONTWAIT
MSG_EOF
MSG_FLUSH
MSG_HOLD
MSG_SEND
MSG_HAVEMORE
MSG_RCVMORE
MSG_COMPAT
SOL_SOCKET
SOL_IP
SOL_IPX
SOL_AX25
SOL_ATALK
SOL_TCP
SOL_UDP
IPPROTO_IP 0
IPPROTO_ICMP 1
IPPROTO_IGMP
IPPROTO_GGP
IPPROTO_TCP 6
IPPROTO_EGP
IPPROTO_PUP
IPPROTO_UDP 17
IPPROTO_IDP
IPPROTO_HELLO
IPPROTO_ND
IPPROTO_TP
IPPROTO_XTP
IPPROTO_EON
IPPROTO_BIP
IPPROTO_AH
IPPROTO_DSTOPTS
IPPROTO_ESP
IPPROTO_FRAGMENT
IPPROTO_HOPOPTS
IPPROTO_ICMPV6
IPPROTO_IPV6
IPPROTO_NONE
IPPROTO_ROUTING
IPPROTO_RAW 255
IPPROTO_MAX
# Some port configuration
IPPORT_RESERVED 1024
IPPORT_USERRESERVED 5000
# Some reserved IP v.4 addresses
INADDR_ANY 0x00000000
INADDR_BROADCAST 0xffffffff
INADDR_LOOPBACK 0x7F000001
INADDR_UNSPEC_GROUP 0xe0000000
INADDR_ALLHOSTS_GROUP 0xe0000001
INADDR_MAX_LOCAL_GROUP 0xe00000ff
INADDR_NONE 0xffffffff
# IP [gs]etsockopt options
IP_OPTIONS
IP_HDRINCL
IP_TOS
IP_TTL
IP_RECVOPTS
IP_RECVRETOPTS
IP_RECVDSTADDR
IP_RETOPTS
IP_MINTTL
IP_DONTFRAG
IP_SENDSRCADDR
IP_ONESBCAST
IP_RECVTTL
IP_RECVIF
IP_PORTRANGE
IP_MULTICAST_IF
IP_MULTICAST_TTL
IP_MULTICAST_LOOP
IP_ADD_MEMBERSHIP
IP_DROP_MEMBERSHIP
IP_DEFAULT_MULTICAST_TTL
IP_DEFAULT_MULTICAST_LOOP
IP_MAX_MEMBERSHIPS
SO_DEBUG
SO_REUSEADDR
SO_REUSEPORT
SO_TYPE
SO_ERROR
SO_DONTROUTE
SO_BROADCAST
SO_SNDBUF
SO_RCVBUF
SO_KEEPALIVE
SO_OOBINLINE
SO_NO_CHECK
SO_PRIORITY
SO_LINGER
SO_PASSCRED
SO_PEERCRED
SO_RCVLOWAT
SO_SNDLOWAT
SO_RCVTIMEO
SO_SNDTIMEO
SO_ACCEPTCONN
SO_USELOOPBACK
SO_ACCEPTFILTER
SO_DONTTRUNC
SO_WANTMORE
SO_WANTOOBFLAG
SO_NREAD
SO_NKE
SO_NOSIGPIPE
SO_SECURITY_AUTHENTICATION
SO_SECURITY_ENCRYPTION_TRANSPORT
SO_SECURITY_ENCRYPTION_NETWORK
SO_BINDTODEVICE
SO_ATTACH_FILTER
SO_DETACH_FILTER
SO_PEERNAME
SO_TIMESTAMP
SOPRI_INTERACTIVE
SOPRI_NORMAL
SOPRI_BACKGROUND
IPX_TYPE
TCP_NODELAY
TCP_MAXSEG
TCP_CORK
TCP_DEFER_ACCEPT
TCP_INFO
TCP_KEEPCNT
TCP_KEEPIDLE
TCP_KEEPINTVL
TCP_LINGER2
TCP_MD5SIG
TCP_NOOPT
TCP_NOPUSH
TCP_QUICKACK
TCP_SYNCNT
TCP_WINDOW_CLAMP
UDP_CORK
EAI_ADDRFAMILY
EAI_AGAIN
EAI_BADFLAGS
EAI_FAIL
EAI_FAMILY
EAI_MEMORY
EAI_NODATA
EAI_NONAME
EAI_OVERFLOW
EAI_SERVICE
EAI_SOCKTYPE
EAI_SYSTEM
EAI_BADHINTS
EAI_PROTOCOL
EAI_MAX
AI_PASSIVE
AI_CANONNAME
AI_NUMERICHOST
AI_NUMERICSERV
AI_MASK
AI_ALL
AI_V4MAPPED_CFG
AI_ADDRCONFIG
AI_V4MAPPED
AI_DEFAULT
NI_MAXHOST
NI_MAXSERV
NI_NOFQDN
NI_NUMERICHOST
NI_NAMEREQD
NI_NUMERICSERV
NI_DGRAM
SHUT_RD 0
SHUT_WR 1
SHUT_RDWR 2
IPV6_JOIN_GROUP
IPV6_LEAVE_GROUP
IPV6_MULTICAST_HOPS
IPV6_MULTICAST_IF
IPV6_MULTICAST_LOOP
IPV6_UNICAST_HOPS
IPV6_V6ONLY
IPV6_CHECKSUM
IPV6_DONTFRAG
IPV6_DSTOPTS
IPV6_HOPLIMIT
IPV6_HOPOPTS
IPV6_NEXTHOP
IPV6_PATHMTU
IPV6_PKTINFO
IPV6_RECVDSTOPTS
IPV6_RECVHOPLIMIT
IPV6_RECVHOPOPTS
IPV6_RECVPKTINFO
IPV6_RECVRTHDR
IPV6_RECVTCLASS
IPV6_RTHDR
IPV6_RTHDRDSTOPTS
IPV6_RTHDR_TYPE_0
IPV6_RECVPATHMTU
IPV6_TCLASS
IPV6_USE_MIN_MTU
INET_ADDRSTRLEN
INET6_ADDRSTRLEN
|