From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Wed,  2 Sep 1998 07:25:29 -0400
From: arisawa@ar.aichi-u.ac.jp arisawa@ar.aichi-u.ac.jp
Subject: [9fans] 9tftpd
Topicbox-Message-UUID: 7e314abc-eac8-11e9-9e20-41e7f4b1d025
Message-ID: <19980902112529.YsaSf2Tmj7CVAce1LHOZAg9OgmI2nNDPawzRvdoUHm4@z>

Hello 9fans.

I received bug report of 9tftpd from beleos@plan9.cs.unr.edu.

Thanks,

Kenji Arisawa
E-mail: arisawa@aichi-u.ac.jp

---------------------- bug report ------------------
It is working fine except for one problem - after a number of  
bootp's
(about 10 or so) 9tftpd eventually fails with a
"tftpopen: error (0): no free file descriptors" message.

The file descriptor leak appears to be in the ip2bootf function.
Adding 2 ndbclose() statements appears to fix the problem.

old:
        db = ndbopen(0);
        if(db == 0) return 0;
        if(ipinfo(db, 0, ip, 0, &info) < 0)
                return 0;
        if(info.bootf[0])
                return info.bootf;
        return 0;

new:
        db = ndbopen(0);
        if(db == 0) return 0;
        if(ipinfo(db, 0, ip, 0, &info) < 0) {
                ndbclose(db);
                return 0;
        }
        if(info.bootf[0]) {
                ndbclose(db);
                return info.bootf;
        }
        return 0;