59 lines
1.3 KiB
C
59 lines
1.3 KiB
C
/*
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* This file is part of the UCB release of Plan 9. It is subject to the license
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* terms in the LICENSE file found in the top-level directory of this
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* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
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* part of the UCB release of Plan 9, including this file, may be copied,
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* modified, propagated, or distributed except according to the terms contained
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* in the LICENSE file.
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*/
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#include <u.h>
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#include <lib9.h>
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#include <bio.h>
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#include <ndb.h>
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#include <ip.h>
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/* return list of ip addresses for a name */
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Ndbtuple*
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ndbgetipaddr(Ndb *db, char *val)
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{
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char *attr, *p;
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Ndbtuple *it, *first, *last, *next;
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Ndbs s;
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/* already an IP address? */
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attr = ipattr(val);
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if(strcmp(attr, "ip") == 0){
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it = ndbnew("ip", val);
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ndbsetmalloctag(it, getcallerpc());
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return it;
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}
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/* look it up */
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p = ndbgetvalue(db, &s, attr, val, "ip", &it);
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if(p == nil)
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return nil;
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free(p);
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/* remove the non-ip entries */
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first = last = nil;
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for(; it; it = next){
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next = it->entry;
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if(strcmp(it->attr, "ip") == 0){
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if(first == nil)
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first = it;
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else
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last->entry = it;
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it->entry = nil;
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it->line = first;
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last = it;
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} else {
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it->entry = nil;
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ndbfree(it);
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}
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}
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ndbsetmalloctag(first, getcallerpc());
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return first;
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}
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