1#ifndef WIN32_LEAN_AND_MEAN
2#define WIN32_LEAN_AND_MEAN
3#endif
4#undef __CRT__NO_INLINE
5#define __CRT__NO_INLINE
6#include <winsock2.h>
7#include <wspiapi.h>
8
9int WINAPI
10WspiapiLegacyGetAddrInfo(const char *pszNodeName,
11 const char *pszServiceName,
12 const struct addrinfo *ptHints,
13 struct addrinfo **pptResult)
14{
15 int err = 0, iFlags = 0, iFamily = PF_UNSPEC, iSocketType = 0, iProtocol = 0;
16 struct in_addr inAddress;
17 struct servent *svc = NULL;
18 char *pc = NULL;
19 WINBOOL isCloned = FALSE;
20 WORD tcpPort = 0, udpPort = 0, port = 0;
21
22 *pptResult = NULL;
23 if (!pszNodeName && !pszServiceName)
24 return EAI_NONAME;
25 if (ptHints)
26 {
27 if (ptHints->ai_addrlen != 0 || ptHints->ai_canonname != NULL
28 || ptHints->ai_addr!=NULL || ptHints->ai_next != NULL)
29 return EAI_FAIL;
30 iFlags = ptHints->ai_flags;
31 if ((iFlags & AI_CANONNAME) != 0 && !pszNodeName)
32 return EAI_BADFLAGS;
33 iFamily = ptHints->ai_family;
34 if (iFamily != PF_UNSPEC && iFamily != PF_INET)
35 return EAI_FAMILY;
36 iSocketType = ptHints->ai_socktype;
37 if (iSocketType != 0 && iSocketType != SOCK_STREAM && iSocketType != SOCK_DGRAM
38 && iSocketType != SOCK_RAW)
39 return EAI_SOCKTYPE;
40 iProtocol = ptHints->ai_protocol;
41 }
42
43 if (pszServiceName)
44 {
45 port = (WORD) strtoul (pszServiceName, &pc, 10);
46 if(*pc == 0)
47 {
48 port = tcpPort = udpPort = htons (port);
49 if (iSocketType == 0)
50 {
51 isCloned = TRUE;
52 iSocketType = SOCK_STREAM;
53 }
54 }
55 else
56 {
57 if (iSocketType == 0 || iSocketType == SOCK_DGRAM)
58 {
59 svc = getservbyname(pszServiceName, "udp");
60 if (svc)
61 port = udpPort = svc->s_port;
62 }
63 if (iSocketType == 0 || iSocketType == SOCK_STREAM)
64 {
65 svc = getservbyname(pszServiceName, "tcp");
66 if (svc)
67 port = tcpPort = svc->s_port;
68 }
69 if (port == 0)
70 return (iSocketType ? EAI_SERVICE : EAI_NONAME);
71 if (iSocketType==0)
72 {
73 iSocketType = (tcpPort) ? SOCK_STREAM : SOCK_DGRAM;
74 isCloned = (tcpPort && udpPort);
75 }
76 }
77 }
78 if (!pszNodeName || WspiapiParseV4Address(pszNodeName,&inAddress.s_addr))
79 {
80 if (!pszNodeName)
81 {
82 inAddress.s_addr = htonl ((iFlags & AI_PASSIVE) ? INADDR_ANY : INADDR_LOOPBACK);
83 }
84 *pptResult = WspiapiNewAddrInfo(iSocketType, iProtocol, port, inAddress.s_addr);
85 if (!(*pptResult))
86 err = EAI_MEMORY;
87 if (!err && pszNodeName)
88 {
89 (*pptResult)->ai_flags |= AI_NUMERICHOST;
90 if (iFlags & AI_CANONNAME)
91 {
92 (*pptResult)->ai_canonname =
93 WspiapiStrdup (inet_ntoa (inAddress));
94 if (!(*pptResult)->ai_canonname)
95 err = EAI_MEMORY;
96 }
97 }
98 }
99 else if (iFlags & AI_NUMERICHOST)
100 err = EAI_NONAME;
101 else
102 err = WspiapiLookupNode (pszNodeName, iSocketType, iProtocol, port,
103 (iFlags & AI_CANONNAME), pptResult);
104 if (!err && isCloned)
105 err = WspiapiClone(udpPort, *pptResult);
106 if (err)
107 {
108 WspiapiLegacyFreeAddrInfo (*pptResult);
109 *pptResult = NULL;
110 }
111 return err;
112}