diff options
Diffstat (limited to 'zen/socket.h')
| -rw-r--r-- | zen/socket.h | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/zen/socket.h b/zen/socket.h index 4ccde190..f706daab 100644 --- a/zen/socket.h +++ b/zen/socket.h @@ -19,6 +19,42 @@ namespace zen do { const ErrorCode ecInternal = getLastError(); throw SysError(formatSystemError(functionName, ecInternal)); } while (false) +#define THROW_LAST_SYS_ERROR_GAI(rcGai) \ + do { \ + if (rcGai == EAI_SYSTEM) /*"check errno for details"*/ \ + THROW_LAST_SYS_ERROR("getaddrinfo"); \ + \ + throw SysError(formatSystemError("getaddrinfo", formatGaiErrorCode(rcGai), utfTo<std::wstring>(::gai_strerror(rcGai)))); \ + } while (false) + +inline +std::wstring formatGaiErrorCode(int ec) +{ + switch (ec) //codes used on both Linux and macOS + { + ZEN_CHECK_CASE_FOR_CONSTANT(EAI_ADDRFAMILY); + ZEN_CHECK_CASE_FOR_CONSTANT(EAI_AGAIN); + ZEN_CHECK_CASE_FOR_CONSTANT(EAI_BADFLAGS); + ZEN_CHECK_CASE_FOR_CONSTANT(EAI_FAIL); + ZEN_CHECK_CASE_FOR_CONSTANT(EAI_FAMILY); + ZEN_CHECK_CASE_FOR_CONSTANT(EAI_MEMORY); + ZEN_CHECK_CASE_FOR_CONSTANT(EAI_NODATA); + ZEN_CHECK_CASE_FOR_CONSTANT(EAI_NONAME); + ZEN_CHECK_CASE_FOR_CONSTANT(EAI_SERVICE); + ZEN_CHECK_CASE_FOR_CONSTANT(EAI_SOCKTYPE); + ZEN_CHECK_CASE_FOR_CONSTANT(EAI_SYSTEM); + ZEN_CHECK_CASE_FOR_CONSTANT(EAI_OVERFLOW); + ZEN_CHECK_CASE_FOR_CONSTANT(EAI_INPROGRESS); + ZEN_CHECK_CASE_FOR_CONSTANT(EAI_CANCELED); + ZEN_CHECK_CASE_FOR_CONSTANT(EAI_NOTCANCELED); + ZEN_CHECK_CASE_FOR_CONSTANT(EAI_ALLDONE); + ZEN_CHECK_CASE_FOR_CONSTANT(EAI_INTR); + ZEN_CHECK_CASE_FOR_CONSTANT(EAI_IDN_ENCODE); + default: + return replaceCpy(_("Error code %x"), L"%x", numberTo<std::wstring>(ec)); + } +} + //patch up socket portability: using SocketType = int; const SocketType invalidSocket = -1; @@ -53,7 +89,7 @@ public: const int rcGai = ::getaddrinfo(server.c_str(), serviceName.c_str(), &hints, &servinfo); if (rcGai != 0) - throw SysError(formatSystemError("getaddrinfo", replaceCpy(_("Error code %x"), L"%x", numberTo<std::wstring>(rcGai)), utfTo<std::wstring>(::gai_strerror(rcGai)))); + THROW_LAST_SYS_ERROR_GAI(rcGai); if (!servinfo) throw SysError(formatSystemError("getaddrinfo", L"", L"Empty server info.")); |