【MSDN】WSAGetLastError（h_errno）Winsock相关错误代码查询

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搬运自MSDN Library - October 2001。
找到这页信息的方法是在MSDN打开后的界面找到“索引(N)”选项卡，然后输入关键词“Winsock API [Winsock]”（注意去掉引号），找到“Error Codes in the API
”，双击打开即可。
如下图所示。

这样就能找到了。当然我会把MSDN上的这些内容搬运到这里的。如果懒得自己打开MSDN看的话请回帖查看我搬运的内容。

游客，如果您要查看本帖隐藏内容请回复

0xAA55

以下是将h_errno翻译成字符串的函数。配合printf、sprintf、fprintf可以很好地打印错误信息。

1. char*h_error_String()
   
2. {
   
3.     switch(h_errno)
   
4.     {
   
5.     case WSAEACCES:
   
6.         return"WSAEACCES";
   
7.     case WSAEADDRINUSE:
   
8.         return"WSAEADDRINUSE";
   
9.     case WSAEADDRNOTAVAIL:
   
10.         return"WSAEADDRNOTAVAIL";
    
11.     case WSAEAFNOSUPPORT:
    
12.         return"WSAEAFNOSUPPORT";
    
13.     case WSAEALREADY:
    
14.         return"WSAEALREADY";
    
15.     case WSAECONNABORTED:
    
16.         return"WSAECONNABORTED";
    
17.     case WSAECONNREFUSED:
    
18.         return"WSAECONNREFUSED";
    
19.     case WSAECONNRESET:
    
20.         return"WSAECONNRESET";
    
21.     case WSAEDESTADDRREQ:
    
22.         return"WSAEDESTADDRREQ";
    
23.     case WSAEFAULT:
    
24.         return"WSAEFAULT";
    
25.     case WSAEHOSTDOWN:
    
26.         return"WSAEHOSTDOWN";
    
27.     case WSAEHOSTUNREACH:
    
28.         return"WSAEHOSTUNREACH";
    
29.     case WSAEINPROGRESS:
    
30.         return"WSAEINPROGRESS";
    
31.     case WSAEINTR:
    
32.         return"WSAEINTR";
    
33.     case WSAEINVAL:
    
34.         return"WSAEINVAL";
    
35.     case WSAEISCONN:
    
36.         return"WSAEISCONN";
    
37.     case WSAEMFILE:
    
38.         return"WSAEMFILE";
    
39.     case WSAEMSGSIZE:
    
40.         return"WSAEMSGSIZE";
    
41.     case WSAENETDOWN:
    
42.         return"WSAENETDOWN";
    
43.     case WSAENETRESET:
    
44.         return"WSAENETRESET";
    
45.     case WSAENETUNREACH:
    
46.         return"WSAENETUNREACH";
    
47.     case WSAENOBUFS:
    
48.         return"WSAENOBUFS";
    
49.     case WSAENOPROTOOPT:
    
50.         return"WSAENOPROTOOPT";
    
51.     case WSAENOTCONN:
    
52.         return"WSAENOTCONN";
    
53.     case WSAENOTSOCK:
    
54.         return"WSAENOTSOCK";
    
55.     case WSAEOPNOTSUPP:
    
56.         return"WSAEOPNOTSUPP";
    
57.     case WSAEPFNOSUPPORT:
    
58.         return"WSAEPFNOSUPPORT";
    
59.     case WSAEPROCLIM:
    
60.         return"WSAEPROCLIM";
    
61.     case WSAEPROTONOSUPPORT:
    
62.         return"WSAEPROTONOSUPPORT";
    
63.     case WSAEPROTOTYPE:
    
64.         return"WSAEPROTOTYPE";
    
65.     case WSAESHUTDOWN:
    
66.         return"WSAESHUTDOWN";
    
67.     case WSAESOCKTNOSUPPORT:
    
68.         return"WSAESOCKTNOSUPPORT";
    
69.     case WSAETIMEDOUT:
    
70.         return"WSAETIMEDOUT";
    
71.     case WSATYPE_NOT_FOUND:
    
72.         return"WSATYPE_NOT_FOUND";
    
73.     case WSAEWOULDBLOCK:
    
74.         return"WSAEWOULDBLOCK";
    
75.     case WSAHOST_NOT_FOUND:
    
76.         return"WSAHOST_NOT_FOUND";
    
77.     case WSA_INVALID_HANDLE:
    
78.         return"WSA_INVALID_HANDLE";
    
79.     case WSA_INVALID_PARAMETER:
    
80.         return"WSA_INVALID_PARAMETER";
    
81.     case WSAEINVALIDPROCTABLE:
    
82.         return"WSAEINVALIDPROCTABLE";
    
83.     case WSAEINVALIDPROVIDER:
    
84.         return"WSAEINVALIDPROVIDER";
    
85.     case WSA_IO_INCOMPLETE:
    
86.         return"WSA_IO_INCOMPLETE";
    
87.     case WSA_IO_PENDING:
    
88.         return"WSA_IO_PENDING";
    
89.     case WSA_NOT_ENOUGH_MEMORY:
    
90.         return"WSA_NOT_ENOUGH_MEMORY";
    
91.     case WSANOTINITIALISED:
    
92.         return"WSANOTINITIALISED";
    
93.     case WSANO_DATA:
    
94.         return"WSANO_DATA";
    
95.     case WSANO_RECOVERY:
    
96.         return"WSANO_RECOVERY";
    
97.     case WSAEPROVIDERFAILEDINIT:
    
98.         return"WSAEPROVIDERFAILEDINIT";
    
99.     case WSASYSCALLFAILURE:
    
100.         return"WSASYSCALLFAILURE";
     
101.     case WSASYSNOTREADY:
     
102.         return"WSASYSNOTREADY";
     
103.     case WSATRY_AGAIN:
     
104.         return"WSATRY_AGAIN";
     
105.     case WSAVERNOTSUPPORTED:
     
106.         return"WSAVERNOTSUPPORTED";
     
107.     case WSAEDISCON:
     
108.         return"WSAEDISCON";
     
109.     case WSA_OPERATION_ABORTED:
     
110.         return"WSA_OPERATION_ABORTED";
     
111.     default:
     
112.         return"";
     
113.     }
     
114. }

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