Date: Fri, 3 Jan 2003 15:41:13 +0100 (CET) From: Hartmut Brandt <brandt@fokus.gmd.de> To: FreeBSD-gnats-submit@FreeBSD.org Subject: sparc64/46729: gethostbyname fails for NIS Message-ID: <200301031441.h03EfD4t003598@catssrv.fokus.gmd.de>
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>Number: 46729
>Category: sparc64
>Synopsis: gethostbyname fails for NIS
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: freebsd-sparc
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Jan 03 06:50:01 PST 2003
>Closed-Date:
>Last-Modified:
>Originator: Hartmut Brandt
>Release: FreeBSD 5.0-CURRENT sparc64
>Organization:
FhI Fokus
>Environment:
System: FreeBSD catssrv.fokus.gmd.de 5.0-CURRENT FreeBSD 5.0-CURRENT #20: Fri Jan 3 14:08:11 CET 2003 hbb@catssrv.fokus.gmd.de:/opt/obj/usr/src/sys/CATSSRV sparc64
>Description:
/usr/src/lib/libc/net/gethostbynis.c assumes, that an AF_INET address is
the same as an u_long. This is abviously false and leads to the effect, that
all IP addresses obtained via NIS are 0.0.0.0.
>How-To-Repeat:
Execute
ping host-with-name-via-nis
and observe that ping is able to resolve the name, but the printed address is
0.0.0.0.
>Fix:
Apply the following patch and recompile and install libc:
Index: gethostbynis.c
===================================================================
RCS file: /usr/ncvs/src/lib/libc/net/gethostbynis.c,v
retrieving revision 1.15
diff -c -r1.15 gethostbynis.c
*** gethostbynis.c 22 Mar 2002 21:52:29 -0000 1.15
--- gethostbynis.c 3 Jan 2003 14:31:16 -0000
***************
*** 67,72 ****
--- 67,73 ----
static struct hostent h;
static char *domain = (char *)NULL;
static char ypbuf[YPMAXRECORD + 2];
+ in_addr_t addr;
switch(af) {
case AF_INET:
***************
*** 104,110 ****
*cp++ = '\0';
h.h_addr_list = host_addrs;
h.h_addr = hostaddr;
! *((u_long *)h.h_addr) = inet_addr(result);
h.h_length = size;
h.h_addrtype = AF_INET;
while (*cp == ' ' || *cp == '\t')
--- 105,112 ----
*cp++ = '\0';
h.h_addr_list = host_addrs;
h.h_addr = hostaddr;
! addr = inet_addr(result);
! bcopy((char *)&addr, h.h_addr, size);
h.h_length = size;
h.h_addrtype = AF_INET;
while (*cp == ' ' || *cp == '\t')
>Release-Note:
>Audit-Trail:
>Unformatted:
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