Thank you Christoph and Mattias!

I've filed
https://bugs.openjdk.java.net/browse/JDK-8217291 and
https://bugs.openjdk.java.net/browse/JDK-8217292

to handle the realloc() issues in other areas.

With kind regards,
Ivan

On 1/16/19 2:22 AM, Baesken, Matthias wrote:
Hi  Ivan ,looks good to me too  (not a Reviewer  however).

Do you think we should address the other reallocs with unhandeled  return  code 
?

Best regards, Matthias

-----Original Message-----
From: Langer, Christoph
Sent: Dienstag, 15. Januar 2019 20:58
To: Ivan Gerasimov <ivan.gerasi...@oracle.com>; Baesken, Matthias
<matthias.baes...@sap.com>; net-dev@openjdk.java.net
Subject: RE: RFR 8007606 : Handle realloc() failure in
unix/native/libnet/net_util_md.c correctly

Hi Ivan,

yes, sure, push it 😊

Best regards
Christoph

-----Original Message-----
From: Ivan Gerasimov <ivan.gerasi...@oracle.com>
Sent: Dienstag, 15. Januar 2019 20:53
To: Baesken, Matthias <matthias.baes...@sap.com>; net-
d...@openjdk.java.net; Langer, Christoph <christoph.lan...@sap.com>
Subject: Re: RFR 8007606 : Handle realloc() failure in
unix/native/libnet/net_util_md.c correctly

Hello!

Do you think it is good to go now?

With kind regards,

Ivan


On 1/11/19 11:30 AM, Ivan Gerasimov wrote:
Good catch, thank you!

Indeed, if we don't reset localifsSize then we could end up accessing
already freed memory, which is worse than just a memory leak.

Here's the updated webrev:

http://cr.openjdk.java.net/~igerasim/8007606/01/webrev/

With kind regards,
Ivan

On 1/11/19 4:43 AM, Baesken, Matthias wrote:
Hi Ivan,

Shouldn't you reset    localifsSize to 0   in case of  the early
return ?  The comment says  localifsSize is the size of the array so
the size of the array is 0 again after freeing.


637 static struct localinterface *localifs = 0;
   638 static int localifsSize = 0;    /* size of array */
   639 static int nifs = 0;            /* number of entries used in
array */

     ...

679             if (localifsTemp == 0) {
   680                 free(localifs);
   681                 localifs = 0;
   682                 nifs = 0;
   683                 fclose(f);
   684                 return;
   685             }




Best regards, Matthias



Date: Thu, 10 Jan 2019 20:29:08 -0800
From: Ivan Gerasimov <ivan.gerasi...@oracle.com>
To: "net-dev@openjdk.java.net" <net-dev@openjdk.java.net>
Subject: RFR 8007606 : Handle realloc() failure in
     unix/native/libnet/net_util_md.c correctly
Message-ID: <3dc3c26b-fea7-2538-2c7a-bfa623f2f...@oracle.com>
Content-Type: text/plain; charset=utf-8; format=flowed

Hello!

This seems to be the last use of realloc() without proper handling of a
failure.

Would you please help review a trivial fix?

BUGURL: https://bugs.openjdk.java.net/browse/JDK-8007606
WEBREV: http://cr.openjdk.java.net/~igerasim/8007606/00/webrev/

Thanks in advance!

--
With kind regards,
Ivan Gerasimov


--
With kind regards,
Ivan Gerasimov

--
With kind regards,
Ivan Gerasimov

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