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#include <sys/socket.h>
#include <sys/types.h>
#include <unistd.h>
#include "buffer.h"
#include "dnsresolv.h"
#include "exit.h"
#include "ip.h"
#include "logmsg.h"
#include "stralloc.h"
#include "dns.h"
#define WHO "dnsfq"
#define MAXCNAME 10
stralloc ca = {0};
stralloc sa = {0};
stralloc ia = {0};
int main(int argc, char **argv)
{
int i, r;
char ip4str[IP4_FMT];
char ip6str[IP6_FMT];
if (!argv[1]) logmsg(WHO, 100, USAGE, "dnsfq fqdn");
if (!stralloc_copys(&sa, argv[1])) logmsg(WHO, 111, FATAL, "out of memory");
DNS_INIT
buffer_put(buffer_1, sa.s, sa.len);
buffer_puts(buffer_1, " ");
for (i = 0; i <= MAXCNAME; i++) {
if ((r = dns_cname(&ca, &sa)) < 0) _exit(1);
if (r > 0) {
if (!stralloc_copy(&sa, &ca)) logmsg(WHO, 111, FATAL, "out of memory");
buffer_puts(buffer_1, "-> ");
buffer_put(buffer_1, sa.s, sa.len);
buffer_puts(buffer_1, " ");
} else
break;
}
buffer_putsflush(buffer_1, "\n");
if ((i = dns_ip6(&ia, &sa)) > 0) {
for (i = 0; i + 16 <= ia.len; i += 16) {
if (ip6_isv4mapped(ia.s + i)) continue;
buffer_put(buffer_1, ip6str, ip6_fmt(ip6str, ia.s + i));
buffer_puts(buffer_1, "\n");
}
}
if ((i = dns_ip4(&ia, &sa)) > 0) {
for (i = 0; i + 4 <= ia.len; i += 4) {
buffer_put(buffer_1, ip4str, ip4_fmt(ip4str, ia.s + i));
buffer_puts(buffer_1, "\n");
}
}
buffer_flush(buffer_1);
_exit(0);
}
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