src/port/win32gai_strerror.c

   1 /*-------------------------------------------------------------------------
   2  *
   3  * win32gai_strerror.c
   4  *        Thread-safe gai_strerror() for Windows.
   5  *
   6  * Portions Copyright (c) 2024, PostgreSQL Global Development Group
   7  *
   8  * IDENTIFICATION
   9  *    src/port/win32gai_strerror.c
  10  *
  11  *-------------------------------------------------------------------------
  12  */
  13
  14 #include <sys/socket.h>
  15
  16 /*
  17  * Windows has gai_strerrorA(), but it is not thread-safe so we avoid it.
  18  *
  19  * https://learn.microsoft.com/en-us/windows/win32/api/ws2tcpip/nf-ws2tcpip-gai_strerrora
  20  */
  21 const char *
  22 gai_strerror(int errcode)
  23 {
  24         switch (errcode)
  25         {
  26                 case EAI_AGAIN:
  27                         return "Temporary failure in name resolution";
  28                 case EAI_BADFLAGS:
  29                         return "Bad value for ai_flags";
  30                 case EAI_FAIL:
  31                         return "Non-recoverable failure in name resolution";
  32                 case EAI_FAMILY:
  33                         return "ai_family not supported";
  34                 case EAI_MEMORY:
  35                         return "Memory allocation failure";
  36                 case EAI_NONAME:
  37                         return "Name or service not known";
  38                 case EAI_SERVICE:
  39                         return "Servname not supported for ai_socktype";
  40                 case EAI_SOCKTYPE:
  41                         return "ai_socktype not supported";
  42                 default:
  43                         return "Unknown server error";
  44         }
  45 }