Subversion Repositories planix.SVN

#include <u.h>
#include <libc.h>
#include <bio.h>
#include <ndb.h>
#include <ip.h>

/* return list of ip addresses for a name */
Ndbtuple*
ndbgetipaddr(Ndb *db, char *val)
{
        char *attr, *p;
        Ndbtuple *it, *first, *last, *next;
        Ndbs s;

        /* already an IP address? */
        attr = ipattr(val);
        if(strcmp(attr, "ip") == 0){
                it = ndbnew("ip", val);
                ndbsetmalloctag(it, getcallerpc(&db));
                return it;
        }

        /* look it up */
        p = ndbgetvalue(db, &s, attr, val, "ip", &it);
        if(p == nil)
                return nil;
        free(p);

        /* remove the non-ip entries */
        first = last = nil;
        for(; it; it = next){
                next = it->entry;
                if(strcmp(it->attr, "ip") == 0){
                        if(first == nil)
                                first = it;
                        else
                                last->entry = it;
                        it->entry = nil;
                        it->line = first;
                        last = it;
                } else {
                        it->entry = nil;
                        ndbfree(it);
                }
        }

        ndbsetmalloctag(first, getcallerpc(&db));
        return first;
}