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added better network error message support.

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This commit is contained in:
crs
2002-09-14 20:56:28 +00:00
parent 4586f88188
commit fec679cfe5
8 changed files with 155 additions and 54 deletions
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98
lib/net/XSocket.cpp
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@@ -13,6 +13,7 @@
*/
#include "XSocket.h"
#include "CNetwork.h"
//
// XSocketAddress
@@ -71,7 +72,7 @@ XSocketAddress::getWhat() const throw()
//
XSocketErrno::XSocketErrno() :
MXErrno()
MXErrno(CNetwork::getsockerror())
{
// do nothing
}
@@ -82,6 +83,92 @@ XSocketErrno::XSocketErrno(int err) :
// do nothing
}
const char*
XSocketErrno::getErrstr() const
{
#if WINDOWS_LIKE
// built-in windows function for looking up error message strings
// may not look up network error messages correctly. we'll have
// to do it ourself.
static const struct { int m_code; const char* m_msg; } s_netErrorCodes[] = {
/* 10004 */{WSAEINTR, "The (blocking) call was canceled via WSACancelBlockingCall"},
/* 10009 */{WSAEBADF, "Bad file handle"},
/* 10013 */{WSAEACCES, "The requested address is a broadcast address, but the appropriate flag was not set"},
/* 10014 */{WSAEFAULT, "WSAEFAULT"},
/* 10022 */{WSAEINVAL, "WSAEINVAL"},
/* 10024 */{WSAEMFILE, "No more file descriptors available"},
/* 10035 */{WSAEWOULDBLOCK, "Socket is marked as non-blocking and no connections are present or the receive operation would block"},
/* 10036 */{WSAEINPROGRESS, "A blocking Windows Sockets operation is in progress"},
/* 10037 */{WSAEALREADY, "The asynchronous routine being canceled has already completed"},
/* 10038 */{WSAENOTSOCK, "At least on descriptor is not a socket"},
/* 10039 */{WSAEDESTADDRREQ, "A destination address is required"},
/* 10040 */{WSAEMSGSIZE, "The datagram was too large to fit into the specified buffer and was truncated"},
/* 10041 */{WSAEPROTOTYPE, "The specified protocol is the wrong type for this socket"},
/* 10042 */{WSAENOPROTOOPT, "The option is unknown or unsupported"},
/* 10043 */{WSAEPROTONOSUPPORT,"The specified protocol is not supported"},
/* 10044 */{WSAESOCKTNOSUPPORT,"The specified socket type is not supported by this address family"},
/* 10045 */{WSAEOPNOTSUPP, "The referenced socket is not a type that supports that operation"},
/* 10046 */{WSAEPFNOSUPPORT, "BSD: Protocol family not supported"},
/* 10047 */{WSAEAFNOSUPPORT, "The specified address family is not supported"},
/* 10048 */{WSAEADDRINUSE, "The specified address is already in use"},
/* 10049 */{WSAEADDRNOTAVAIL, "The specified address is not available from the local machine"},
/* 10050 */{WSAENETDOWN, "The Windows Sockets implementation has detected that the network subsystem has failed"},
/* 10051 */{WSAENETUNREACH, "The network can't be reached from this hos at this time"},
/* 10052 */{WSAENETRESET, "The connection must be reset because the Windows Sockets implementation dropped it"},
/* 10053 */{WSAECONNABORTED, "The virtual circuit was aborted due to timeout or other failure"},
/* 10054 */{WSAECONNRESET, "The virtual circuit was reset by the remote side"},
/* 10055 */{WSAENOBUFS, "No buffer space is available or a buffer deadlock has occured. The socket cannot be created"},
/* 10056 */{WSAEISCONN, "The socket is already connected"},
/* 10057 */{WSAENOTCONN, "The socket is not connected"},
/* 10058 */{WSAESHUTDOWN, "The socket has been shutdown"},
/* 10059 */{WSAETOOMANYREFS, "BSD: Too many references"},
/* 10060 */{WSAETIMEDOUT, "Attempt to connect timed out without establishing a connection"},
/* 10061 */{WSAECONNREFUSED, "The attempt to connect was forcefully rejected"},
/* 10062 */{WSAELOOP, "Undocumented WinSock error code used in BSD"},
/* 10063 */{WSAENAMETOOLONG, "Undocumented WinSock error code used in BSD"},
/* 10064 */{WSAEHOSTDOWN, "Undocumented WinSock error code used in BSD"},
/* 10065 */{WSAEHOSTUNREACH, "No route to host"},
/* 10066 */{WSAENOTEMPTY, "Undocumented WinSock error code"},
/* 10067 */{WSAEPROCLIM, "Undocumented WinSock error code"},
/* 10068 */{WSAEUSERS, "Undocumented WinSock error code"},
/* 10069 */{WSAEDQUOT, "Undocumented WinSock error code"},
/* 10070 */{WSAESTALE, "Undocumented WinSock error code"},
/* 10071 */{WSAEREMOTE, "Undocumented WinSock error code"},
/* 10091 */{WSASYSNOTREADY, "Underlying network subsytem is not ready for network communication"},
/* 10092 */{WSAVERNOTSUPPORTED, "The version of WinSock API support requested is not provided in this implementation"},
/* 10093 */{WSANOTINITIALISED, "WinSock subsystem not properly initialized"},
/* 10101 */{WSAEDISCON, "Virtual circuit has gracefully terminated connection"},
/* 11001 */{WSAHOST_NOT_FOUND, "Host not found"},
/* 11002 */{WSATRY_AGAIN, "Host not found"},
/* 11003 */{WSANO_RECOVERY, "Host name lookup error"},
/* 11004 */{WSANO_DATA, "No data for host"},
/* end */{0, NULL}
};
const int err = getErrno();
for (unsigned int i = 0; s_netErrorCodes[i].m_code != 0; ++i) {
if (s_netErrorCodes[i].m_code == err) {
return s_netErrorCodes[i].m_msg;
}
}
#endif
// not a network error code. fallback to system error message.
return MXErrno::getErrstr();
}
//
// XSocketIOClose
//
CString
XSocketIOClose::getWhat() const throw()
{
return format("XSocketIOClose", "close: %{1}",
getErrstr());
}
//
// XSocketBind
@@ -90,7 +177,8 @@ XSocketErrno::XSocketErrno(int err) :
CString
XSocketBind::getWhat() const throw()
{
return format("XSocketBind", "cannot bind address");
return format("XSocketBind", "cannot bind address: %{1}",
getErrstr());
}
@@ -101,7 +189,8 @@ XSocketBind::getWhat() const throw()
CString
XSocketConnect::getWhat() const throw()
{
return format("XSocketConnect", "cannot connect socket");
return format("XSocketConnect", "cannot connect socket: %{1}",
getErrstr());
}
@@ -112,5 +201,6 @@ XSocketConnect::getWhat() const throw()
CString
XSocketCreate::getWhat() const throw()
{
return format("XSocketCreate", "cannot create socket");
return format("XSocketCreate", "cannot create socket: %{1}",
getErrstr());
}