void block_dns_ipbyhost(char *host)
{
struct in_addr inaddr;
Context;
/* Check if someone passed us an IP address as hostname
* and return it straight away */
if (egg_inet_aton(host, &inaddr)) {
call_ipbyhost(host, my_ntohl(inaddr.s_addr), 1);
return;
}
if (!setjmp(alarmret)) {
struct hostent *hp;
struct in_addr *in;
IP ip = 0;
alarm(resolve_timeout);
hp = gethostbyname(host);
alarm(0);
if (hp) {
in = (struct in_addr *) (hp->h_addr_list[0]);
ip = (IP) (in->s_addr);
call_ipbyhost(host, my_ntohl(ip), 1);
return;
}
/* Fall through. */
}
call_ipbyhost(host, 0, 0);
Context;
}
/*
* DNS event related code
*/
static void dns_event_success(struct resolve *rp, int type)
{
if (!rp)
return;
if (type == T_PTR) {
debug2("DNS resolved %s to %s", iptostr(rp->ip), rp->hostn);
call_hostbyip(ntohl(rp->ip), rp->hostn, 1);
} else if (type == T_A) {
debug2("DNS resolved %s to %s", rp->hostn, iptostr(rp->ip));
call_ipbyhost(rp->hostn, ntohl(rp->ip), 1);
}
}
static void dns_event_failure(struct resolve *rp, int type)
{
if (!rp)
return;
if (type == T_PTR) {
static char s[UHOSTLEN];
debug1("DNS resolve failed for %s", iptostr(rp->ip));
strcpy(s, iptostr(rp->ip));
call_hostbyip(ntohl(rp->ip), s, 0);
} else if (type == T_A) {
debug1("DNS resolve failed for %s", rp->hostn);
call_ipbyhost(rp->hostn, 0, 0);
} else
debug2("DNS resolve failed for unknown %s / %s", iptostr(rp->ip),
nonull(rp->hostn));
return;
}
