How do I output the IP Address after getting computer name??

[IrishSonic]

Hiya I am writing a window sockets program. I can find loads of examples of setting the IP address and then displaying that, but I can not find out how to display the IP Address once I have got the computer name..I have this so far: char szHostName[200]; struct hostent *host; gethostname( szHostName,strlen( szHostName )); host = gethostbyname( szHostName ); // now display the IP Address of the host?? I have seen the inet_addr function, but don't know how to use it..

[Bartosz Bien]

Example: in_addr *addr = (in_addr*)*host->h_addr_list; CString s; s.Format("%d.%d.%d.%d", addr->s_b1, addr->s_b2, addr->s_b3, addr->s_b4); Regards, BB

[IrishSonic]

Hiya, thanks for that and tried it but it says that s_b1 is not a member of in_addr. Which it isn't. I put it in exactly as suggusted. But S_un is the member of in_addr .i.e addr->S_un What can I do to fix this?? Thanks again, grahamoj

[Bartosz Bien]

OK, I mispelled this. I guess you may use: s.Format("%d.%d.%d.%d", addr->S_un.S_un_b.s_b1, addr->S_un.S_un_b.s_b2, addr->S_un.S_un_b.s_b3, addr->S_un.S_un_b.s_b4); Regards, BB

[csc]

Hi ... you may try this code snippet .... the result should be something like 123.456.789.123 ... hope it will help you ;) struct hostent * pHost = gethostbyname(szHostName); if(pHost != NULL) { for(int i = 0; (pHost->h_addr_list[i]!= NULL); i++ ) { CString csIP = ""; for(int j = 0; j < pHost->h_length; j++ ) { if( j > 0 ) csIP += "."; CString addr = ""; addr.Format("%u", (unsigned int)((unsigned char*)pHost->h_addr_list[i])[j]); csIP += addr; } AfxMessageBox( csIP ); } }

[Dudi Avramov]

use inet_ntoa fucntion: char szIP[16]; struct hostent *host = gethostbyname( szHostName ); struct in_addr *InAddr = (struct in_addr*)host->h_addr_list[0]; strcpy(szIP,inet_ntoa(*InAddr));