The call tree which gets the FQDN:
0 - get_host_name
1 - get_hostname
2 - plug_get_host_fqdn
3 - arg_get_value(desc, "FQDN")
4 - hg_get_name_from_ip(addr)
5 - gethostbyaddr()
ExtFunc
const char * plug_get_host_fqdn(desc)
struct arglist * desc;
{
struct arglist * hinfos = arg_get_value(desc, "HOSTNAME");
if(hinfos)return((char*)arg_get_value(hinfos, "FQDN"));
else return(NULL);
}
In nessus-core/nessusd/attack.c:attack_init_hostinfos()
if(inet_aton(hostname, &addr) != 0)
{
char * f = (char*)hg_get_name_from_ip(addr);
arg_add_value(hostinfos, "FQDN", ARG_STRING, strlen(f), estrdup(f));
free(f);
}
In ./nessus-libraries/libhosts_gatherer/hg_utils.c:
/*
*
* Get the FQDN from the IP
*
*/
char *
hg_get_name_from_ip(ip)
struct in_addr ip;
{
char * ret = NULL;
struct hostent * he = NULL;
he = gethostbyaddr((char *)&ip, sizeof(long), AF_INET);
if(he)
{
int len = strlen(he->h_name);
ret = malloc(len+1);
bzero(ret, len+1);
strncpy(ret, he->h_name, len);
}
else
ret = strdup(inet_ntoa(ip));
return(ret);
On Monday 28 October 2002 08:42 pm, Thomas Reinke wrote:
> I've been doing a bit of digging on how virtual web servers
> are tested (or in many cases, not) reliably, and have noticed
> some usage of the function "get_host_name". In an attempt
> to backtrack where the data being retrieved is set for this
> fuction call, I'm running into a dead-end with the .c function
> "plug_add_host". Dead-end, because I can't find anywhere in
> the entire Nessus source tree where this routine is called.
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