Ruby  2.7.2p137(2020-10-01revision5445e0435260b449decf2ac16f9d09bae3cafe72)
getaddrinfo.c
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1 /*
2  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  * notice, this list of conditions and the following disclaimer in the
12  * documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the project nor the names of its contributors
14  * may be used to endorse or promote products derived from this software
15  * without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 /*
31  * "#ifdef FAITH" part is local hack for supporting IPv4-v6 translator.
32  *
33  * Issues to be discussed:
34  * - Thread safe-ness must be checked.
35  * - Return values. There are nonstandard return values defined and used
36  * in the source code. This is because RFC2133 is silent about which error
37  * code must be returned for which situation.
38  * - PF_UNSPEC case would be handled in getipnodebyname() with the AI_ALL flag.
39  */
40 
41 #include "ruby/config.h"
42 #ifdef RUBY_EXTCONF_H
43 #include RUBY_EXTCONF_H
44 #endif
45 #include <sys/types.h>
46 #ifndef _WIN32
47 #include <sys/param.h>
48 #include <sys/socket.h>
49 #include <netinet/in.h>
50 #if defined(HAVE_ARPA_INET_H)
51 #include <arpa/inet.h>
52 #endif
53 #if defined(HAVE_ARPA_NAMESER_H)
54 #include <arpa/nameser.h>
55 #endif
56 #include <netdb.h>
57 #if defined(HAVE_RESOLV_H)
58 #ifdef _SX
59 #include <stdio.h>
60 #endif
61 #include <resolv.h>
62 #endif
63 #include <unistd.h>
64 #else
65 #if defined(_MSC_VER) && _MSC_VER <= 1200
66 #include <windows.h>
67 #endif
68 #include <winsock2.h>
69 #include <ws2tcpip.h>
70 #include <io.h>
71 #endif
72 #include <string.h>
73 #include <stdio.h>
74 #include <stdlib.h>
75 #include <stddef.h>
76 #include <ctype.h>
77 
78 #ifdef SOCKS5
79 #include <socks.h>
80 #endif
81 
82 #ifndef HAVE_TYPE_SOCKLEN_T
83 typedef int socklen_t;
84 #endif
85 
86 #include "addrinfo.h"
87 #include "sockport.h"
88 
89 #define SUCCESS 0
90 #define ANY 0
91 #define YES 1
92 #define NO 0
93 
94 #ifdef FAITH
95 static int translate = NO;
96 static struct in6_addr faith_prefix = IN6ADDR_ANY_INIT;
97 #endif
98 
99 static const char in_addrany[] = { 0, 0, 0, 0 };
100 static const char in6_addrany[] = {
101  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
102 };
103 static const char in_loopback[] = { 127, 0, 0, 1 };
104 static const char in6_loopback[] = {
105  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
106 };
107 
108 struct sockinet {
112 };
113 
114 static const struct afd {
115  int a_af;
116  int a_addrlen;
117  int a_socklen;
118  int a_off;
119  const char *a_addrany;
120  const char *a_loopback;
121 } afdl [] = {
122 #ifdef INET6
123 #define N_INET6 0
124  {PF_INET6, sizeof(struct in6_addr),
125  sizeof(struct sockaddr_in6),
126  offsetof(struct sockaddr_in6, sin6_addr),
127  in6_addrany, in6_loopback},
128 #define N_INET 1
129 #else
130 #define N_INET 0
131 #endif
132  {PF_INET, sizeof(struct in_addr),
133  sizeof(struct sockaddr_in),
134  offsetof(struct sockaddr_in, sin_addr),
135  in_addrany, in_loopback},
136  {0, 0, 0, 0, NULL, NULL},
137 };
138 
139 #ifdef INET6
140 #define PTON_MAX 16
141 #else
142 #define PTON_MAX 4
143 #endif
144 
145 static int get_name __P((const char *, const struct afd *,
146  struct addrinfo **, char *, struct addrinfo *,
147  int));
148 static int get_addr __P((const char *, int, struct addrinfo **,
149  struct addrinfo *, int));
150 static int str_isnumber __P((const char *));
151 
152 #ifndef HAVE_GAI_STRERROR
153 static const char *const ai_errlist[] = {
154  "success.",
155  "address family for hostname not supported.", /* EAI_ADDRFAMILY */
156  "temporary failure in name resolution.", /* EAI_AGAIN */
157  "invalid value for ai_flags.", /* EAI_BADFLAGS */
158  "non-recoverable failure in name resolution.", /* EAI_FAIL */
159  "ai_family not supported.", /* EAI_FAMILY */
160  "memory allocation failure.", /* EAI_MEMORY */
161  "no address associated with hostname.", /* EAI_NODATA */
162  "hostname nor servname provided, or not known.",/* EAI_NONAME */
163  "servname not supported for ai_socktype.", /* EAI_SERVICE */
164  "ai_socktype not supported.", /* EAI_SOCKTYPE */
165  "system error returned in errno.", /* EAI_SYSTEM */
166  "invalid value for hints.", /* EAI_BADHINTS */
167  "resolved protocol is unknown.", /* EAI_PROTOCOL */
168  "unknown error.", /* EAI_MAX */
169 };
170 #endif
171 
172 #define GET_CANONNAME(ai, str) \
173 if (pai->ai_flags & AI_CANONNAME) {\
174  if (((ai)->ai_canonname = (char *)malloc(strlen(str) + 1)) != NULL) {\
175  strcpy((ai)->ai_canonname, (str));\
176  } else {\
177  error = EAI_MEMORY;\
178  goto free;\
179  }\
180 }
181 
182 #define GET_AI(ai, afd, addr, port) {\
183  char *p;\
184  if (((ai) = (struct addrinfo *)malloc(sizeof(struct addrinfo) +\
185  ((afd)->a_socklen)))\
186  == NULL) {\
187  error = EAI_MEMORY;\
188  goto free;\
189  }\
190  memcpy((ai), pai, sizeof(struct addrinfo));\
191  (ai)->ai_addr = (struct sockaddr *)((ai) + 1);\
192  (ai)->ai_family = (afd)->a_af;\
193  (ai)->ai_addrlen = (afd)->a_socklen;\
194  INIT_SOCKADDR((ai)->ai_addr, (afd)->a_af, (afd)->a_socklen);\
195  ((struct sockinet *)(ai)->ai_addr)->si_port = (port);\
196  p = (char *)((ai)->ai_addr);\
197  memcpy(p + (afd)->a_off, (addr), (afd)->a_addrlen);\
198 }
199 
200 #define ERR(err) { error = (err); goto bad; }
201 
202 #ifndef HAVE_GAI_STRERROR
203 #ifdef GAI_STRERROR_CONST
204 const
205 #endif
206 char *
207 gai_strerror(int ecode)
208 {
209  if (ecode < 0 || ecode > EAI_MAX)
210  ecode = EAI_MAX;
211  return (char *)ai_errlist[ecode];
212 }
213 #endif
214 
215 void
217 {
218  struct addrinfo *next;
219 
220  do {
221  next = ai->ai_next;
222  if (ai->ai_canonname)
223  free(ai->ai_canonname);
224  /* no need to free(ai->ai_addr) */
225  free(ai);
226  } while ((ai = next) != NULL);
227 }
228 
229 static int
230 str_isnumber(const char *p)
231 {
232  char *q = (char *)p;
233  while (*q) {
234  if (! isdigit(*q))
235  return NO;
236  q++;
237  }
238  return YES;
239 }
240 
241 #ifndef HAVE_INET_PTON
242 
243 static int
244 inet_pton(int af, const char *hostname, void *pton)
245 {
246  struct in_addr in;
247 
248 #ifdef HAVE_INET_ATON
249  if (!inet_aton(hostname, &in))
250  return 0;
251 #else
252  int d1, d2, d3, d4;
253  char ch;
254 
255  if (sscanf(hostname, "%d.%d.%d.%d%c", &d1, &d2, &d3, &d4, &ch) == 4 &&
256  0 <= d1 && d1 <= 255 && 0 <= d2 && d2 <= 255 &&
257  0 <= d3 && d3 <= 255 && 0 <= d4 && d4 <= 255) {
258  in.s_addr = htonl(
259  ((long) d1 << 24) | ((long) d2 << 16) |
260  ((long) d3 << 8) | ((long) d4 << 0));
261  }
262  else {
263  return 0;
264  }
265 #endif
266  memcpy(pton, &in, sizeof(in));
267  return 1;
268 }
269 #endif
270 
271 int
272 getaddrinfo(const char *hostname, const char *servname, const struct addrinfo *hints, struct addrinfo **res)
273 {
274  struct addrinfo sentinel;
275  struct addrinfo *top = NULL;
276  struct addrinfo *cur;
277  int i, error = 0;
278  char pton[PTON_MAX];
279  struct addrinfo ai;
280  struct addrinfo *pai;
281  u_short port;
282 
283 #ifdef FAITH
284  static int firsttime = 1;
285 
286  if (firsttime) {
287  /* translator hack */
288  {
289  char *q = getenv("GAI");
290  if (q && inet_pton(AF_INET6, q, &faith_prefix) == 1)
291  translate = YES;
292  }
293  firsttime = 0;
294  }
295 #endif
296 
297  /* initialize file static vars */
298  sentinel.ai_next = NULL;
299  cur = &sentinel;
300  pai = &ai;
301  pai->ai_flags = 0;
302  pai->ai_family = PF_UNSPEC;
303  pai->ai_socktype = ANY;
304  pai->ai_protocol = ANY;
305  pai->ai_addrlen = 0;
306  pai->ai_canonname = NULL;
307  pai->ai_addr = NULL;
308  pai->ai_next = NULL;
309  port = ANY;
310 
311  if (hostname == NULL && servname == NULL)
312  return EAI_NONAME;
313  if (hints) {
314  /* error check for hints */
315  if (hints->ai_addrlen || hints->ai_canonname ||
316  hints->ai_addr || hints->ai_next)
317  ERR(EAI_BADHINTS); /* xxx */
318  if (hints->ai_flags & ~AI_MASK)
319  ERR(EAI_BADFLAGS);
320  switch (hints->ai_family) {
321  case PF_UNSPEC:
322  case PF_INET:
323 #ifdef INET6
324  case PF_INET6:
325 #endif
326  break;
327  default:
328  ERR(EAI_FAMILY);
329  }
330  memcpy(pai, hints, sizeof(*pai));
331  switch (pai->ai_socktype) {
332  case ANY:
333  switch (pai->ai_protocol) {
334  case ANY:
335  break;
336  case IPPROTO_UDP:
337  pai->ai_socktype = SOCK_DGRAM;
338  break;
339  case IPPROTO_TCP:
340  pai->ai_socktype = SOCK_STREAM;
341  break;
342  default:
343 #if defined(SOCK_RAW)
344  pai->ai_socktype = SOCK_RAW;
345 #endif
346  break;
347  }
348  break;
349 #if defined(SOCK_RAW)
350  case SOCK_RAW:
351  break;
352 #endif
353  case SOCK_DGRAM:
354  if (pai->ai_protocol != IPPROTO_UDP &&
355  pai->ai_protocol != ANY)
356  ERR(EAI_BADHINTS); /*xxx*/
357  pai->ai_protocol = IPPROTO_UDP;
358  break;
359  case SOCK_STREAM:
360  if (pai->ai_protocol != IPPROTO_TCP &&
361  pai->ai_protocol != ANY)
362  ERR(EAI_BADHINTS); /*xxx*/
363  pai->ai_protocol = IPPROTO_TCP;
364  break;
365  default:
366  ERR(EAI_SOCKTYPE);
367  break;
368  }
369  }
370 
371  /*
372  * service port
373  */
374  if (servname) {
375  if (str_isnumber(servname)) {
376  if (pai->ai_socktype == ANY) {
377  /* caller accept *ANY* socktype */
378  pai->ai_socktype = SOCK_DGRAM;
379  pai->ai_protocol = IPPROTO_UDP;
380  }
381  port = htons((unsigned short)atoi(servname));
382  } else if (pai->ai_flags & AI_NUMERICSERV) {
383  ERR(EAI_NONAME);
384  } else {
385  struct servent *sp;
386  const char *proto;
387 
388  proto = NULL;
389  switch (pai->ai_socktype) {
390  case ANY:
391  proto = NULL;
392  break;
393  case SOCK_DGRAM:
394  proto = "udp";
395  break;
396  case SOCK_STREAM:
397  proto = "tcp";
398  break;
399  default:
400  fprintf(stderr, "panic!\n");
401  break;
402  }
403  if ((sp = getservbyname((char*)servname, proto)) == NULL)
404  ERR(EAI_SERVICE);
405  port = sp->s_port;
406  if (pai->ai_socktype == ANY)
407  if (strcmp(sp->s_proto, "udp") == 0) {
408  pai->ai_socktype = SOCK_DGRAM;
409  pai->ai_protocol = IPPROTO_UDP;
410  } else if (strcmp(sp->s_proto, "tcp") == 0) {
411  pai->ai_socktype = SOCK_STREAM;
412  pai->ai_protocol = IPPROTO_TCP;
413  } else
414  ERR(EAI_PROTOCOL); /*xxx*/
415  }
416  }
417 
418  /*
419  * hostname == NULL.
420  * passive socket -> anyaddr (0.0.0.0 or ::)
421  * non-passive socket -> localhost (127.0.0.1 or ::1)
422  */
423  if (hostname == NULL) {
424  const struct afd *afd;
425  int s;
426 
427  for (afd = &afdl[0]; afd->a_af; afd++) {
428  if (!(pai->ai_family == PF_UNSPEC
429  || pai->ai_family == afd->a_af)) {
430  continue;
431  }
432 
433  /*
434  * filter out AFs that are not supported by the kernel
435  * XXX errno?
436  */
437  s = socket(afd->a_af, SOCK_DGRAM, 0);
438  if (s < 0)
439  continue;
440 
441  close(s);
442 
443  if (pai->ai_flags & AI_PASSIVE) {
444  GET_AI(cur->ai_next, afd, afd->a_addrany, port);
445  /* xxx meaningless?
446  * GET_CANONNAME(cur->ai_next, "anyaddr");
447  */
448  } else {
449  GET_AI(cur->ai_next, afd, afd->a_loopback,
450  port);
451  /* xxx meaningless?
452  * GET_CANONNAME(cur->ai_next, "localhost");
453  */
454  }
455  cur = cur->ai_next;
456  }
457  top = sentinel.ai_next;
458  if (top)
459  goto good;
460  else
461  ERR(EAI_FAMILY);
462  }
463 
464  /* hostname as numeric name */
465  for (i = 0; afdl[i].a_af; i++) {
466  if (inet_pton(afdl[i].a_af, hostname, pton)) {
467  u_long v4a;
468 #ifdef INET6
469  u_char pfx;
470 #endif
471 
472  switch (afdl[i].a_af) {
473  case AF_INET:
474  v4a = ((struct in_addr *)pton)->s_addr;
475  if (IN_MULTICAST(v4a) || IN_EXPERIMENTAL(v4a))
476  pai->ai_flags &= ~AI_CANONNAME;
477  v4a >>= IN_CLASSA_NSHIFT;
478  if (v4a == 0 || v4a == IN_LOOPBACKNET)
479  pai->ai_flags &= ~AI_CANONNAME;
480  break;
481 #ifdef INET6
482  case AF_INET6:
483  pfx = ((struct in6_addr *)pton)->s6_addr[0];
484  if (pfx == 0 || pfx == 0xfe || pfx == 0xff)
485  pai->ai_flags &= ~AI_CANONNAME;
486  break;
487 #endif
488  }
489 
490  if (pai->ai_family == afdl[i].a_af ||
491  pai->ai_family == PF_UNSPEC) {
492  if (! (pai->ai_flags & AI_CANONNAME)) {
493  GET_AI(top, &afdl[i], pton, port);
494  goto good;
495  }
496  /*
497  * if AI_CANONNAME and if reverse lookup
498  * fail, return ai anyway to pacify
499  * calling application.
500  *
501  * XXX getaddrinfo() is a name->address
502  * translation function, and it looks strange
503  * that we do addr->name translation here.
504  */
505  get_name(pton, &afdl[i], &top, pton, pai, port);
506  goto good;
507  } else
508  ERR(EAI_FAMILY); /*xxx*/
509  }
510  }
511 
512  if (pai->ai_flags & AI_NUMERICHOST)
513  ERR(EAI_NONAME);
514 
515  /* hostname as alphabetical name */
516  error = get_addr(hostname, pai->ai_family, &top, pai, port);
517  if (error == 0) {
518  if (top) {
519  good:
520  *res = top;
521  return SUCCESS;
522  } else
523  error = EAI_FAIL;
524  }
525  free:
526  if (top)
527  freeaddrinfo(top);
528  bad:
529  *res = NULL;
530  return error;
531 }
532 
533 static int
534 get_name(const char *addr, const struct afd *afd, struct addrinfo **res, char *numaddr, struct addrinfo *pai, int port0)
535 {
536  u_short port = port0 & 0xffff;
537  struct hostent *hp;
538  struct addrinfo *cur;
539  int error = 0;
540 #ifdef INET6
541  int h_error;
542 #endif
543 
544 #ifdef INET6
545  hp = getipnodebyaddr(addr, afd->a_addrlen, afd->a_af, &h_error);
546 #else
547  hp = gethostbyaddr((char*)addr, afd->a_addrlen, AF_INET);
548 #endif
549  if (hp && hp->h_name && hp->h_name[0] && hp->h_addr_list[0]) {
550  GET_AI(cur, afd, hp->h_addr_list[0], port);
551  GET_CANONNAME(cur, hp->h_name);
552  } else
553  GET_AI(cur, afd, numaddr, port);
554 
555 #ifdef INET6
556  if (hp)
557  freehostent(hp);
558 #endif
559  *res = cur;
560  return SUCCESS;
561  free:
562  if (cur)
563  freeaddrinfo(cur);
564 #ifdef INET6
565  if (hp)
566  freehostent(hp);
567 #endif
568  /* bad: */
569  *res = NULL;
570  return error;
571 }
572 
573 static int
574 get_addr(const char *hostname, int af, struct addrinfo **res, struct addrinfo *pai, int port0)
575 {
576  u_short port = port0 & 0xffff;
577  struct addrinfo sentinel;
578  struct hostent *hp;
579  struct addrinfo *top, *cur;
580  const struct afd *afd;
581  int i, error = 0, h_error;
582  char *ap;
583 
584  top = NULL;
585  sentinel.ai_next = NULL;
586  cur = &sentinel;
587 #ifdef INET6
588  if (af == AF_UNSPEC) {
589  hp = getipnodebyname(hostname, AF_INET6,
590  AI_ADDRCONFIG|AI_ALL|AI_V4MAPPED, &h_error);
591  } else
592  hp = getipnodebyname(hostname, af, AI_ADDRCONFIG, &h_error);
593 #else
594  if (strlen(hostname) >= NI_MAXHOST) ERR(EAI_NODATA);
595  hp = gethostbyname((char*)hostname);
596  h_error = h_errno;
597 #endif
598  if (hp == NULL) {
599  switch (h_error) {
600  case HOST_NOT_FOUND:
601  case NO_DATA:
602  error = EAI_NODATA;
603  break;
604  case TRY_AGAIN:
605  error = EAI_AGAIN;
606  break;
607  case NO_RECOVERY:
608  default:
609  error = EAI_FAIL;
610  break;
611  }
612  goto bad;
613  }
614 
615  if ((hp->h_name == NULL) || (hp->h_name[0] == 0) ||
616  (hp->h_addr_list[0] == NULL))
617  ERR(EAI_FAIL);
618 
619  for (i = 0; (ap = hp->h_addr_list[i]) != NULL; i++) {
620  switch (af) {
621 #ifdef INET6
622  case AF_INET6:
623  afd = &afdl[N_INET6];
624  break;
625 #endif
626 #ifndef INET6
627  default: /* AF_UNSPEC */
628 #endif
629  case AF_INET:
630  afd = &afdl[N_INET];
631  break;
632 #ifdef INET6
633  default: /* AF_UNSPEC */
634  if (IN6_IS_ADDR_V4MAPPED((struct in6_addr *)ap)) {
635  ap += sizeof(struct in6_addr) -
636  sizeof(struct in_addr);
637  afd = &afdl[N_INET];
638  } else
639  afd = &afdl[N_INET6];
640  break;
641 #endif
642  }
643 #ifdef FAITH
644  if (translate && afd->a_af == AF_INET) {
645  struct in6_addr *in6;
646 
647  GET_AI(cur->ai_next, &afdl[N_INET6], ap, port);
648  in6 = &((struct sockaddr_in6 *)cur->ai_next->ai_addr)->sin6_addr;
649  memcpy(&in6->s6_addr, &faith_prefix,
650  sizeof(struct in6_addr) - sizeof(struct in_addr));
651  memcpy(&in6->s6_addr + sizeof(struct in_addr), ap,
652  sizeof(struct in_addr));
653  } else
654 #endif /* FAITH */
655  GET_AI(cur->ai_next, afd, ap, port);
656  if (cur == &sentinel) {
657  top = cur->ai_next;
658  GET_CANONNAME(top, hp->h_name);
659  }
660  cur = cur->ai_next;
661  }
662 #ifdef INET6
663  freehostent(hp);
664 #endif
665  *res = top;
666  return SUCCESS;
667  free:
668  if (top)
669  freeaddrinfo(top);
670 #ifdef INET6
671  if (hp)
672  freehostent(hp);
673 #endif
674  bad:
675  *res = NULL;
676  return error;
677 }
AF_UNSPEC
#define AF_UNSPEC
Definition: sockport.h:101
sockinet::si_port
u_short si_port
Definition: getaddrinfo.c:111
AI_PASSIVE
#define AI_PASSIVE
Definition: addrinfo.h:96
error
const rb_iseq_t const char * error
Definition: rb_mjit_min_header-2.7.2.h:13471
IN_MULTICAST
#define IN_MULTICAST(i)
Definition: sockport.h:85
proto
#define proto(p)
Definition: sdbm.h:60
AI_CANONNAME
#define AI_CANONNAME
Definition: addrinfo.h:97
IPPROTO_UDP
#define IPPROTO_UDP
Definition: constdefs.h:627
freehostent
#define freehostent
Definition: addrinfo.h:153
IPPROTO_TCP
#define IPPROTO_TCP
Definition: constdefs.h:610
u_long
unsigned long u_long
Definition: rb_mjit_min_header-2.7.2.h:1291
GET_AI
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Definition: getaddrinfo.c:182
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Definition: rb_mjit_min_header-2.7.2.h:5460
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Definition: sockport.h:97
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Definition: sockport.h:89
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Definition: getaddrinfo.c:92
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Definition: addrinfo.h:136
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Definition: addrinfo.h:186
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Definition: win32.c:73
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Definition: sockport.h:93
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Definition: addrinfo.h:103
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Definition: addrinfo.h:98
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Definition: getaddrinfo.c:108
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Definition: _sdbm.c:101
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Definition: getaddrinfo.c:83
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Definition: addrinfo.h:87
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Definition: win32ole.c:357
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Definition: addrinfo.h:79
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unsigned short u_short
Definition: rb_mjit_min_header-2.7.2.h:1287
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#define AI_V4MAPPED
Definition: addrinfo.h:109
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Definition: addrinfo.h:137
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Definition: addrinfo.h:84
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Definition: addrinfo.h:138
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Definition: _sdbm.c:123
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Definition: addrinfo.h:133
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Definition: addrinfo.h:99
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Definition: addrinfo.h:117
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int int int int int sscanf(const char *__restrict, const char *__restrict,...) __attribute__((__format__(__scanf__
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Definition: sockport.h:109
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Definition: addrinfo.h:135
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Definition: getaddrinfo.c:90
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Definition: sockport.h:105
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Definition: addrinfo.h:139
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Definition: addrinfo.h:90
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Definition: addrinfo.h:91
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Definition: addrinfo.h:108
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Definition: getaddrinfo.c:216
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Definition: addrinfo.h:106
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Definition: addrinfo.h:86
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Definition: getaddrinfo.c:200
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Definition: rb_mjit_min_header-2.7.2.h:1285
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Definition: addrinfo.h:134
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Definition: addrinfo.h:82
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Definition: addrinfo.h:68
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Definition: dln.c:52
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Definition: addrinfo.h:132
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Definition: getaddrinfo.c:172
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#define EAI_BADFLAGS
Definition: addrinfo.h:80
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Definition: getaddrinfo.c:207
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Definition: addrinfo.h:85
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Definition: rb_mjit_min_header-2.7.2.h:1516
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Definition: nkf.c:4323
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Definition: addrinfo.h:89
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Definition: rb_mjit_min_header-2.7.2.h:13214
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Definition: getaddrinfo.c:272
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Definition: getaddrinfo.c:110
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Definition: getaddrinfo.c:142
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Definition: addrinfo.h:131
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Definition: addrinfo.h:81
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Definition: getaddrinfo.c:89
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Definition: getaddrinfo.c:91