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/*
* $Id: locate_host.c 5147 2007-05-08 15:36:22Z ajc $
*/
/**
* \defgroup Hostlookup Examine a socket and determine the name/address of the originating host.
* \ingroup WebcitHttpServer
*/
/*@{*/
#include "webcit.h"
/**
* \brief get a hostname
* \todo buffersize?
* \param tbuf the returnbuffer
* \param client_socket the sock fd where the client is connected
*/
void locate_host(char *tbuf, int client_socket)
{
struct sockaddr_in cs;
struct hostent *ch;
socklen_t len;
char *i;
int a1, a2, a3, a4;
len = sizeof(cs);
if (getpeername(client_socket, (struct sockaddr *) &cs, &len) < 0) {
strcpy(tbuf, "<unknown>");
return;
}
if ((ch = gethostbyaddr((char *) &cs.sin_addr, sizeof(cs.sin_addr),
AF_INET)) == NULL) {
i = (char *) &cs.sin_addr;
a1 = ((*i++) & 0xff);
a2 = ((*i++) & 0xff);
a3 = ((*i++) & 0xff);
a4 = ((*i++) & 0xff);
sprintf(tbuf, "%d.%d.%d.%d", a1, a2, a3, a4);
return;
}
safestrncpy(tbuf, ch->h_name, 64);
}
/*@}*/
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