#include <bio.h>
#include <ndb.h>
#include <ndbhf.h>
+#include <ip.h>
-static void nstrcpy(char*, char*, int);
static void mkptrname(char*, char*, int);
static Ndbtuple *doquery(int, char *dn, char *type);
static void
mkptrname(char *ip, char *rip, int rlen)
{
- char buf[128];
- char *p, *np;
- int len;
-
- if(cistrstr(ip, "in-addr.arpa") || cistrstr(ip, "ip6.arpa")){
- nstrcpy(rip, ip, rlen);
- return;
- }
- nstrcpy(buf, ip, sizeof buf);
-
- /* truncate if result wont fit in rip[rlen] */
- assert(rlen > 14);
- if((rlen-14) < sizeof(buf))
- buf[rlen-14] = 0;
-
- for(p = buf; *p; p++)
- ;
- *p = '.';
- np = rip;
- len = 0;
- while(p >= buf){
- len++;
- p--;
- if(*p == '.'){
- memmove(np, p+1, len);
- np += len;
- len = 0;
+ uchar a[IPaddrlen];
+ char *p, *e;
+ int i;
+
+ if(cistrstr(ip, "in-addr.arpa") || cistrstr(ip, "ip6.arpa") || parseip(a, ip) == -1)
+ snprint(rip, rlen, "%s", ip);
+ else if(isv4(a))
+ snprint(rip, rlen, "%ud.%ud.%ud.%ud.in-addr.arpa",
+ a[15], a[14], a[13], a[12]);
+ else{
+ p = rip;
+ e = rip + rlen;
+ for(i = 15; i >= 0; i--){
+ p = seprint(p, e, "%ux.", a[i]&0xf);
+ p = seprint(p, e, "%ux.", a[i]>>4);
}
+ seprint(p, e, "ip6.arpa");
}
- memmove(np, p+1, len);
- np += len;
- strcpy(np, "in-addr.arpa");
-}
-
-static void
-nstrcpy(char *to, char *from, int len)
-{
- strncpy(to, from, len);
- to[len-1] = 0;
}
static Ndbtuple*
t = _ndbparseline(buf);
if(t != nil){
- if(first)
+ if(first != nil)
last->entry = t;
else
first = t;
last = t;
-
- while(last->entry)
+ while(last->entry != nil)
last = last->entry;
}
}
-
- ndbsetmalloctag(first, getcallerpc(&fd));
return first;
}