2
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
5
* Redistribution and use in source and binary forms, with or without
6
* modification, are permitted provided that the following conditions
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.
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
31
* "#ifdef FAITH" part is local hack for supporting IPv4-v6 translator.
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 RFC2553 is silent about which error
37
* code must be returned for which situation.
39
* - We use getipnodebyname() just for thread-safeness. There's no intent
40
* to let it do PF_UNSPEC (actually we never pass PF_UNSPEC to
42
* - The code filters out AFs that are not supported by the kernel,
43
* when globbing NULL hostname (to loopback, or wildcard). Is it the right
44
* thing to do? What is the relationship with post-RFC2553 AI_ADDRCONFIG
53
static const char rcsid[] _U_ =
54
"@(#) $Header: /tcpdump/master/libpcap/Win32/Src/getaddrinfo.c,v 1.2 2003/11/15 23:24:06 guy Exp $";
57
#include <pcap-stdinc.h>
59
#include <sys/sysctl.h>
62
#include <arpa/nameser.h>
71
#ifndef HAVE_PORTABLE_PROTOTYPE
72
#include "cdecl_ext.h"
75
#ifndef HAVE_U_INT32_T
79
#ifndef HAVE_SOCKADDR_STORAGE
81
#include "sockstorage.h"
85
#ifdef NEED_ADDRINFO_H
93
#if defined(__KAME__) && defined(INET6)
103
static int translate = NO;
104
static struct in6_addr faith_prefix = IN6ADDR_ANY_INIT;
107
static const char in_addrany[] = { 0, 0, 0, 0 };
108
static const char in6_addrany[] = {
109
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
111
static const char in_loopback[] = { 127, 0, 0, 1 };
112
static const char in6_loopback[] = {
113
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
120
u_int32_t si_scope_id;
123
static const struct afd {
128
const char *a_addrany;
129
const char *a_loopback;
133
{PF_INET6, sizeof(struct in6_addr),
134
sizeof(struct sockaddr_in6),
135
offsetof(struct sockaddr_in6, sin6_addr),
136
in6_addrany, in6_loopback, 1},
138
{PF_INET, sizeof(struct in_addr),
139
sizeof(struct sockaddr_in),
140
offsetof(struct sockaddr_in, sin_addr),
141
in_addrany, in_loopback, 0},
142
{0, 0, 0, 0, NULL, NULL, 0},
149
const char *e_protostr;
151
#define WILD_AF(ex) ((ex)->e_wild & 0x01)
152
#define WILD_SOCKTYPE(ex) ((ex)->e_wild & 0x02)
153
#define WILD_PROTOCOL(ex) ((ex)->e_wild & 0x04)
156
static const struct explore explore[] = {
158
{ PF_LOCAL, 0, ANY, ANY, NULL, 0x01 },
161
{ PF_INET6, SOCK_DGRAM, IPPROTO_UDP, "udp", 0x07 },
162
{ PF_INET6, SOCK_STREAM, IPPROTO_TCP, "tcp", 0x07 },
163
{ PF_INET6, SOCK_RAW, ANY, NULL, 0x05 },
165
{ PF_INET, SOCK_DGRAM, IPPROTO_UDP, "udp", 0x07 },
166
{ PF_INET, SOCK_STREAM, IPPROTO_TCP, "tcp", 0x07 },
167
{ PF_INET, SOCK_RAW, ANY, NULL, 0x05 },
168
{ -1, 0, 0, NULL, 0 },
178
static int str_isnumber __P((const char *));
179
static int explore_fqdn __P((const struct addrinfo *, const char *,
180
const char *, struct addrinfo **));
181
static int explore_null __P((const struct addrinfo *, const char *,
182
const char *, struct addrinfo **));
183
static int explore_numeric __P((const struct addrinfo *, const char *,
184
const char *, struct addrinfo **));
185
static int explore_numeric_scope __P((const struct addrinfo *, const char *,
186
const char *, struct addrinfo **));
187
static int get_name __P((const char *, const struct afd *, struct addrinfo **,
188
char *, const struct addrinfo *, const char *));
189
static int get_canonname __P((const struct addrinfo *,
190
struct addrinfo *, const char *));
191
static struct addrinfo *get_ai __P((const struct addrinfo *,
192
const struct afd *, const char *));
193
static int get_portmatch __P((const struct addrinfo *, const char *));
194
static int get_port __P((struct addrinfo *, const char *, int));
195
static const struct afd *find_afd __P((int));
197
static char *ai_errlist[] = {
199
"Address family for hostname not supported", /* EAI_ADDRFAMILY */
200
"Temporary failure in name resolution", /* EAI_AGAIN */
201
"Invalid value for ai_flags", /* EAI_BADFLAGS */
202
"Non-recoverable failure in name resolution", /* EAI_FAIL */
203
"ai_family not supported", /* EAI_FAMILY */
204
"Memory allocation failure", /* EAI_MEMORY */
205
"No address associated with hostname", /* EAI_NODATA */
206
"hostname nor servname provided, or not known", /* EAI_NONAME */
207
"servname not supported for ai_socktype", /* EAI_SERVICE */
208
"ai_socktype not supported", /* EAI_SOCKTYPE */
209
"System error returned in errno", /* EAI_SYSTEM */
210
"Invalid value for hints", /* EAI_BADHINTS */
211
"Resolved protocol is unknown", /* EAI_PROTOCOL */
212
"Unknown error", /* EAI_MAX */
215
/* XXX macros that make external reference is BAD. */
217
#define GET_AI(ai, afd, addr) \
219
/* external reference: pai, error, and label free */ \
220
(ai) = get_ai(pai, (afd), (addr)); \
221
if ((ai) == NULL) { \
222
error = EAI_MEMORY; \
227
#define GET_PORT(ai, serv) \
229
/* external reference: error and label free */ \
230
error = get_port((ai), (serv), 0); \
235
#define GET_CANONNAME(ai, str) \
237
/* external reference: pai, error and label free */ \
238
error = get_canonname(pai, (ai), (str)); \
245
/* external reference: error, and label bad */ \
250
#define MATCH_FAMILY(x, y, w) \
251
((x) == (y) || ((w) && ((x) == PF_UNSPEC || (y) == PF_UNSPEC)))
252
#define MATCH(x, y, w) \
253
((x) == (y) || ((w) && ((x) == ANY || (y) == ANY)))
259
if (ecode < 0 || ecode > EAI_MAX)
261
return ai_errlist[ecode];
268
struct addrinfo *next;
272
if (ai->ai_canonname)
273
free(ai->ai_canonname);
274
/* no need to free(ai->ai_addr) */
276
} while ((ai = next) != NULL);
293
getaddrinfo(hostname, servname, hints, res)
294
const char *hostname, *servname;
295
const struct addrinfo *hints;
296
struct addrinfo **res;
298
struct addrinfo sentinel;
299
struct addrinfo *cur;
303
struct addrinfo *pai;
304
const struct afd *afd;
305
const struct explore *ex;
308
static int firsttime = 1;
311
/* translator hack */
312
char *q = getenv("GAI");
313
if (q && inet_pton(AF_INET6, q, &faith_prefix) == 1)
319
sentinel.ai_next = NULL;
323
pai->ai_family = PF_UNSPEC;
324
pai->ai_socktype = ANY;
325
pai->ai_protocol = ANY;
327
pai->ai_canonname = NULL;
331
if (hostname == NULL && servname == NULL)
334
/* error check for hints */
335
if (hints->ai_addrlen || hints->ai_canonname ||
336
hints->ai_addr || hints->ai_next)
337
ERR(EAI_BADHINTS); /* xxx */
338
if (hints->ai_flags & ~AI_MASK)
340
switch (hints->ai_family) {
350
memcpy(pai, hints, sizeof(*pai));
353
* if both socktype/protocol are specified, check if they
354
* are meaningful combination.
356
if (pai->ai_socktype != ANY && pai->ai_protocol != ANY) {
357
for (ex = explore; ex->e_af >= 0; ex++) {
358
if (pai->ai_family != ex->e_af)
360
if (ex->e_socktype == ANY)
362
if (ex->e_protocol == ANY)
364
if (pai->ai_socktype == ex->e_socktype
365
&& pai->ai_protocol != ex->e_protocol) {
373
* check for special cases. (1) numeric servname is disallowed if
374
* socktype/protocol are left unspecified. (2) servname is disallowed
375
* for raw and other inet{,6} sockets.
377
if (MATCH_FAMILY(pai->ai_family, PF_INET, 1)
379
|| MATCH_FAMILY(pai->ai_family, PF_INET6, 1)
384
if (pai->ai_family == PF_UNSPEC) {
386
pai->ai_family = PF_INET6;
388
pai->ai_family = PF_INET;
391
error = get_portmatch(pai, servname);
400
/* NULL hostname, or numeric hostname */
401
for (ex = explore; ex->e_af >= 0; ex++) {
404
if (!MATCH_FAMILY(pai->ai_family, ex->e_af, WILD_AF(ex)))
406
if (!MATCH(pai->ai_socktype, ex->e_socktype, WILD_SOCKTYPE(ex)))
408
if (!MATCH(pai->ai_protocol, ex->e_protocol, WILD_PROTOCOL(ex)))
411
if (pai->ai_family == PF_UNSPEC)
412
pai->ai_family = ex->e_af;
413
if (pai->ai_socktype == ANY && ex->e_socktype != ANY)
414
pai->ai_socktype = ex->e_socktype;
415
if (pai->ai_protocol == ANY && ex->e_protocol != ANY)
416
pai->ai_protocol = ex->e_protocol;
418
if (hostname == NULL)
419
error = explore_null(pai, hostname, servname, &cur->ai_next);
421
error = explore_numeric_scope(pai, hostname, servname, &cur->ai_next);
426
while (cur && cur->ai_next)
432
* If numreic representation of AF1 can be interpreted as FQDN
433
* representation of AF2, we need to think again about the code below.
435
if (sentinel.ai_next)
438
if (pai->ai_flags & AI_NUMERICHOST)
440
if (hostname == NULL)
444
* hostname as alphabetical name.
445
* we would like to prefer AF_INET6 than AF_INET, so we'll make a
448
for (afd = afdl; afd->a_af; afd++) {
451
if (!MATCH_FAMILY(pai->ai_family, afd->a_af, 1))
454
for (ex = explore; ex->e_af >= 0; ex++) {
457
if (pai->ai_family == PF_UNSPEC)
458
pai->ai_family = afd->a_af;
460
if (!MATCH_FAMILY(pai->ai_family, ex->e_af, WILD_AF(ex)))
462
if (!MATCH(pai->ai_socktype, ex->e_socktype,
463
WILD_SOCKTYPE(ex))) {
466
if (!MATCH(pai->ai_protocol, ex->e_protocol,
467
WILD_PROTOCOL(ex))) {
471
if (pai->ai_family == PF_UNSPEC)
472
pai->ai_family = ex->e_af;
473
if (pai->ai_socktype == ANY && ex->e_socktype != ANY)
474
pai->ai_socktype = ex->e_socktype;
475
if (pai->ai_protocol == ANY && ex->e_protocol != ANY)
476
pai->ai_protocol = ex->e_protocol;
478
error = explore_fqdn(pai, hostname, servname,
481
while (cur && cur->ai_next)
487
if (sentinel.ai_next)
493
if (sentinel.ai_next) {
495
*res = sentinel.ai_next;
502
if (sentinel.ai_next)
503
freeaddrinfo(sentinel.ai_next);
509
* FQDN hostname, DNS lookup
512
explore_fqdn(pai, hostname, servname, res)
513
const struct addrinfo *pai;
514
const char *hostname;
515
const char *servname;
516
struct addrinfo **res;
521
char **aplist = NULL, *apbuf = NULL;
523
struct addrinfo sentinel, *cur;
525
#ifndef USE_GETIPNODEBY
528
const struct afd *afd;
532
sentinel.ai_next = NULL;
536
* Do not filter unsupported AFs here. We need to honor content of
537
* databases (/etc/hosts, DNS and others). Otherwise we cannot
538
* replace gethostbyname() by getaddrinfo().
542
* if the servname does not match socktype/protocol, ignore it.
544
if (get_portmatch(pai, servname) != 0)
547
afd = find_afd(pai->ai_family);
550
* post-RFC2553: should look at (pai->ai_flags & AI_ADDRCONFIG)
551
* rather than hardcoding it. we may need to add AI_ADDRCONFIG
552
* handling code by ourselves in case we don't have getipnodebyname().
554
#ifdef USE_GETIPNODEBY
555
hp = getipnodebyname(hostname, pai->ai_family, AI_ADDRCONFIG, &h_error);
557
#ifdef HAVE_GETHOSTBYNAME2
558
hp = gethostbyname2(hostname, pai->ai_family);
560
if (pai->ai_family != AF_INET)
562
hp = gethostbyname(hostname);
568
#endif /*HAVE_GETHOSTBYNAME2*/
569
#endif /*USE_GETIPNODEBY*/
586
} else if ((hp->h_name == NULL) || (hp->h_name[0] == 0)
587
|| (hp->h_addr_list[0] == NULL)) {
588
#ifdef USE_GETIPNODEBY
598
#ifdef USE_GETIPNODEBY
599
aplist = hp->h_addr_list;
602
* hp will be overwritten if we use gethostbyname2().
603
* always deep copy for simplification.
605
for (naddrs = 0; hp->h_addr_list[naddrs] != NULL; naddrs++)
608
aplist = (char **)malloc(sizeof(aplist[0]) * naddrs);
609
apbuf = (char *)malloc(hp->h_length * naddrs);
610
if (aplist == NULL || apbuf == NULL) {
614
memset(aplist, 0, sizeof(aplist[0]) * naddrs);
615
for (i = 0; i < naddrs; i++) {
616
if (hp->h_addr_list[i] == NULL) {
620
memcpy(&apbuf[i * hp->h_length], hp->h_addr_list[i],
622
aplist[i] = &apbuf[i * hp->h_length];
626
for (i = 0; aplist[i] != NULL; i++) {
631
&& IN6_IS_ADDR_V4MAPPED((struct in6_addr *)ap)) {
633
ap = ap + sizeof(struct in6_addr)
634
- sizeof(struct in_addr);
638
if (af != pai->ai_family)
641
if ((pai->ai_flags & AI_CANONNAME) == 0) {
642
GET_AI(cur->ai_next, afd, ap);
643
GET_PORT(cur->ai_next, servname);
646
* if AI_CANONNAME and if reverse lookup
647
* fail, return ai anyway to pacify
648
* calling application.
650
* XXX getaddrinfo() is a name->address
651
* translation function, and it looks
652
* strange that we do addr->name
655
get_name(ap, afd, &cur->ai_next,
659
while (cur && cur->ai_next)
663
*res = sentinel.ai_next;
667
#ifdef USE_GETIPNODEBY
675
if (sentinel.ai_next)
676
freeaddrinfo(sentinel.ai_next);
682
* passive socket -> anyaddr (0.0.0.0 or ::)
683
* non-passive socket -> localhost (127.0.0.1 or ::1)
686
explore_null(pai, hostname, servname, res)
687
const struct addrinfo *pai;
688
const char *hostname;
689
const char *servname;
690
struct addrinfo **res;
693
const struct afd *afd;
694
struct addrinfo *cur;
695
struct addrinfo sentinel;
699
sentinel.ai_next = NULL;
703
* filter out AFs that are not supported by the kernel
706
s = socket(pai->ai_family, SOCK_DGRAM, 0);
714
* if the servname does not match socktype/protocol, ignore it.
716
if (get_portmatch(pai, servname) != 0)
719
afd = find_afd(pai->ai_family);
721
if (pai->ai_flags & AI_PASSIVE) {
722
GET_AI(cur->ai_next, afd, afd->a_addrany);
724
* GET_CANONNAME(cur->ai_next, "anyaddr");
726
GET_PORT(cur->ai_next, servname);
728
GET_AI(cur->ai_next, afd, afd->a_loopback);
730
* GET_CANONNAME(cur->ai_next, "localhost");
732
GET_PORT(cur->ai_next, servname);
736
*res = sentinel.ai_next;
740
if (sentinel.ai_next)
741
freeaddrinfo(sentinel.ai_next);
749
explore_numeric(pai, hostname, servname, res)
750
const struct addrinfo *pai;
751
const char *hostname;
752
const char *servname;
753
struct addrinfo **res;
755
const struct afd *afd;
756
struct addrinfo *cur;
757
struct addrinfo sentinel;
763
sentinel.ai_next = NULL;
767
* if the servname does not match socktype/protocol, ignore it.
769
if (get_portmatch(pai, servname) != 0)
772
afd = find_afd(pai->ai_family);
773
flags = pai->ai_flags;
775
if (inet_pton(afd->a_af, hostname, pton) == 1) {
783
v4a = (u_int32_t)ntohl(((struct in_addr *)pton)->s_addr);
784
if (IN_MULTICAST(v4a) || IN_EXPERIMENTAL(v4a))
785
flags &= ~AI_CANONNAME;
786
v4a >>= IN_CLASSA_NSHIFT;
787
if (v4a == 0 || v4a == IN_LOOPBACKNET)
788
flags &= ~AI_CANONNAME;
792
pfx = ((struct in6_addr *)pton)->s6_addr[0];
793
if (pfx == 0 || pfx == 0xfe || pfx == 0xff)
794
flags &= ~AI_CANONNAME;
799
if (pai->ai_family == afd->a_af ||
800
pai->ai_family == PF_UNSPEC /*?*/) {
801
if ((flags & AI_CANONNAME) == 0) {
802
GET_AI(cur->ai_next, afd, pton);
803
GET_PORT(cur->ai_next, servname);
806
* if AI_CANONNAME and if reverse lookup
807
* fail, return ai anyway to pacify
808
* calling application.
810
* XXX getaddrinfo() is a name->address
811
* translation function, and it looks
812
* strange that we do addr->name
815
get_name(pton, afd, &cur->ai_next,
816
pton, pai, servname);
818
while (cur && cur->ai_next)
821
ERR(EAI_FAMILY); /*xxx*/
824
*res = sentinel.ai_next;
829
if (sentinel.ai_next)
830
freeaddrinfo(sentinel.ai_next);
835
* numeric hostname with scope
838
explore_numeric_scope(pai, hostname, servname, res)
839
const struct addrinfo *pai;
840
const char *hostname;
841
const char *servname;
842
struct addrinfo **res;
844
#ifndef SCOPE_DELIMITER
845
return explore_numeric(pai, hostname, servname, res);
847
const struct afd *afd;
848
struct addrinfo *cur;
850
char *cp, *hostname2 = NULL;
852
struct sockaddr_in6 *sin6;
855
* if the servname does not match socktype/protocol, ignore it.
857
if (get_portmatch(pai, servname) != 0)
860
afd = find_afd(pai->ai_family);
862
return explore_numeric(pai, hostname, servname, res);
864
cp = strchr(hostname, SCOPE_DELIMITER);
866
return explore_numeric(pai, hostname, servname, res);
869
* Handle special case of <scoped_address><delimiter><scope id>
871
hostname2 = strdup(hostname);
872
if (hostname2 == NULL)
874
/* terminate at the delimiter */
875
hostname2[cp - hostname] = '\0';
878
switch (pai->ai_family) {
881
scope = if_nametoindex(cp);
890
error = explore_numeric(pai, hostname2, servname, res);
892
for (cur = *res; cur; cur = cur->ai_next) {
893
if (cur->ai_family != AF_INET6)
895
sin6 = (struct sockaddr_in6 *)cur->ai_addr;
896
if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr) ||
897
IN6_IS_ADDR_MC_LINKLOCAL(&sin6->sin6_addr))
898
sin6->sin6_scope_id = scope;
909
get_name(addr, afd, res, numaddr, pai, servname)
911
const struct afd *afd;
912
struct addrinfo **res;
914
const struct addrinfo *pai;
915
const char *servname;
917
struct hostent *hp = NULL;
918
struct addrinfo *cur = NULL;
920
char *ap = NULL, *cn = NULL;
921
#ifdef USE_GETIPNODEBY
924
hp = getipnodebyaddr(addr, afd->a_addrlen, afd->a_af, &h_error);
926
hp = gethostbyaddr(addr, afd->a_addrlen, afd->a_af);
928
if (hp && hp->h_name && hp->h_name[0] && hp->h_addr_list[0]) {
929
#ifdef USE_GETIPNODEBY
930
GET_AI(cur, afd, hp->h_addr_list[0]);
931
GET_PORT(cur, servname);
932
GET_CANONNAME(cur, hp->h_name);
934
/* hp will be damaged if we use gethostbyaddr() */
935
if ((ap = (char *)malloc(hp->h_length)) == NULL) {
939
memcpy(ap, hp->h_addr_list[0], hp->h_length);
940
if ((cn = strdup(hp->h_name)) == NULL) {
945
GET_AI(cur, afd, ap);
946
GET_PORT(cur, servname);
947
GET_CANONNAME(cur, cn);
952
GET_AI(cur, afd, numaddr);
953
GET_PORT(cur, servname);
956
#ifdef USE_GETIPNODEBY
969
#ifdef USE_GETIPNODEBY
978
get_canonname(pai, ai, str)
979
const struct addrinfo *pai;
983
if ((pai->ai_flags & AI_CANONNAME) != 0) {
984
ai->ai_canonname = (char *)malloc(strlen(str) + 1);
985
if (ai->ai_canonname == NULL)
987
strcpy(ai->ai_canonname, str);
992
static struct addrinfo *
993
get_ai(pai, afd, addr)
994
const struct addrinfo *pai;
995
const struct afd *afd;
1001
ai = (struct addrinfo *)malloc(sizeof(struct addrinfo)
1002
+ (afd->a_socklen));
1006
memcpy(ai, pai, sizeof(struct addrinfo));
1007
ai->ai_addr = (struct sockaddr *)(ai + 1);
1008
memset(ai->ai_addr, 0, afd->a_socklen);
1009
#ifdef HAVE_SOCKADDR_SA_LEN
1010
ai->ai_addr->sa_len = afd->a_socklen;
1012
ai->ai_addrlen = afd->a_socklen;
1013
ai->ai_addr->sa_family = ai->ai_family = afd->a_af;
1014
p = (char *)(ai->ai_addr);
1015
memcpy(p + afd->a_off, addr, afd->a_addrlen);
1020
get_portmatch(ai, servname)
1021
const struct addrinfo *ai;
1022
const char *servname;
1025
/* get_port does not touch first argument. when matchonly == 1. */
1026
return get_port((struct addrinfo *)ai, servname, 1);
1030
get_port(ai, servname, matchonly)
1031
struct addrinfo *ai;
1032
const char *servname;
1040
if (servname == NULL)
1042
switch (ai->ai_family) {
1052
switch (ai->ai_socktype) {
1063
return EAI_SOCKTYPE;
1066
if (str_isnumber(servname)) {
1069
port = htons(atoi(servname));
1070
if (port < 0 || port > 65535)
1073
switch (ai->ai_socktype) {
1085
if ((sp = getservbyname(servname, proto)) == NULL)
1091
switch (ai->ai_family) {
1093
((struct sockaddr_in *)ai->ai_addr)->sin_port = port;
1097
((struct sockaddr_in6 *)ai->ai_addr)->sin6_port = port;
1106
static const struct afd *
1110
const struct afd *afd;
1112
if (af == PF_UNSPEC)
1114
for (afd = afdl; afd->a_af; afd++) {
1115
if (afd->a_af == af)
added
removed
libpcap-0.9.1-kis/Win32/Src/getaddrinfo.c
