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added more description gethostbyname error message 

svn path=/trunk/boinc/; revision=1396
This commit is contained in:
Tim Lan 2003-06-11 23:25:54 +00:00
parent bf2a8e9d5a
commit de38c44b95
1 changed files with 52 additions and 1 deletions
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53
client/net_xfer.C
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@ -81,10 +81,61 @@ int NET_XFER::get_ip_addr( char *hostname, int &ip_addr ) {
#endif #endif
hep = gethostbyname(hostname); hep = gethostbyname(hostname);
if (!hep) { if (!hep) {
msg_printf(0, MSG_ERROR, "Can't resolve hostname %s\n", hostname); char msg[256];
int n;
n = sprintf(msg, "Can't resolve hostname %s ", hostname);
#ifdef _WIN32 #ifdef _WIN32
switch (WSAGetLastError()) {
case WSANOTINITIALISED:
break;
case WSAENETDOWN:
sprintf(msg+n, "(the network subsystem has failed)");
break;
case WSAHOST_NOT_FOUND:
sprintf(msg+n, "(host name not found)");
break;
case WSATRY_AGAIN:
sprintf(msg+n, "(no response from server)");
break;
case WSANO_RECOVERY:
sprintf(msg+n, "(a nonrecoverable error occurred)");
break;
case WSANO_DATA:
sprintf(msg+n, "(valid name, no data record of requested type)");
break;
case WSAEINPROGRESS:
sprintf(msg+n, "(a blocking socket call in progress)");
break;
case WSAEFAULT:
sprintf(msg+n, "(invalid part of user address space)");
break;
case WSAEINTR:
sprintf(msg+n, "(a blocking socket call was canceled)");
break;
}
NetClose(); NetClose();
#else
switch (h_errno()) {
case HOST_NOT_FOUND:
sprintf(msg+n, "(authoritative answer not found)");
break;
case NO_DATA:
sprintf(msg+n, "(valid name, no data record of requested type)");
break;
case NO_RECOVERY:
sprintf(msg+n, "(a nonrecoverable error occurred)");
break;
case TRY_AGAIN:
sprintf(msg+n, "(nonauthoritative host not found, or server failure)");
break;
}
#endif #endif
msg_printf(0, MSG_ERROR, "%s\n", msg);
return ERR_GETHOSTBYNAME; return ERR_GETHOSTBYNAME;
} }
ip_addr = *(int*)hep->h_addr_list[0]; ip_addr = *(int*)hep->h_addr_list[0];