Date: Fri, 20 Sep 2002 19:25:05 +0200 (CEST) From: Hans Maurer <maurer@amasol.de> To: FreeBSD-gnats-submit@FreeBSD.org Subject: misc/43136: Pointer bug in getaddrinfo.c Message-ID: <200209201725.g8KHP58K010610@mrburns.amasol.de>
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>Number: 43136
>Category: misc
>Synopsis: Pointer bug in getaddrinfo.c
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Sep 20 10:30:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Hans Maurer
>Release: FreeBSD 4.7-RC i386
>Organization:
>Environment:
System: FreeBSD mrburns.amasol.de 4.7-RC FreeBSD 4.7-RC #5: Fri Sep 20 10:39:35 CEST 2002 root@mrburns.amasol.de:/usr/obj/usr/src/sys/GENERIC i386
>Description:
In /usr/src/lib/libc/net/getaddrinfo.c, buf and buf2 have changed to pointer
types between revision 1.9.2.9 and 1.9.2.10. However, one statement was
overlooked in the process, which causes getaddrinfo to fail on DNS queries.
I noticed when tcp_wrapper wouldn't accept host name in hosts.allow anymore.
>How-To-Repeat:
tcpdmatch ftpd ftp.freebsd.org or any other getaddrinfo call.
>Fix:
*** lib/libc/net/getaddrinfo.c.orig Thu Sep 19 16:41:46 2002
--- lib/libc/net/getaddrinfo.c Fri Sep 20 19:16:40 2002
***************
*** 1460,1466 ****
free(buf2);
return EAI_NODATA;
}
! ai = getanswer(&buf, q.n, q.name, q.qtype, pai);
if (ai) {
cur->ai_next = ai;
while (cur && cur->ai_next)
--- 1460,1466 ----
free(buf2);
return EAI_NODATA;
}
! ai = getanswer(buf, q.n, q.name, q.qtype, pai);
if (ai) {
cur->ai_next = ai;
while (cur && cur->ai_next)
>Release-Note:
>Audit-Trail:
>Unformatted:
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