Date: Fri, 19 Nov 1999 16:16:07 -0800 (PST) From: cynbe@muq.org To: freebsd-gnats-submit@freebsd.org Subject: misc/15002: coredump in sprintf with long long args Message-ID: <19991120001607.C165215127@hub.freebsd.org>
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>Number: 15002
>Category: misc
>Synopsis: coredump in sprintf with long long args
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Nov 19 16:20:00 PST 1999
>Closed-Date:
>Last-Modified:
>Originator: Cynbe ru Taren
>Release: FreeBSD 2.2.7-RELEASE g on intel.
>Organization:
muq.org
>Environment:
(I do not have access to the machine in question.)
>Description:
A user reported Muq (a program I maintain) coredumps on his freebsd
box. Reproduced the problem using the following simple test program.
(I.e., emailed it to him and he reports that it dumps core also.)
I am unable to localize the problem further.
>How-To-Repeat:
/* 99Nov19CrT Test program for Muq problem */
/* on FreeBSD 2.2.7-RELEASE g */
/* using gcc 2.7.2.1 Intel, */
/* reported by Laurent Bossavit morendil@mmanian.com */
/* */
/* Compile and test just by doing */
/* */
/* gcc x.c -o x */
/* ./x */
#include <stdio.h>
int
main(
int argc,
char** argv
) {
long long sys_Ip0 = (long long) 205;
long long sys_Ip1 = (long long) 178;
long long sys_Ip2 = (long long) 16;
long long sys_Ip3 = (long long) 44;
long long sys_Muq_Port = (long long) 30023;
unsigned char jobbuf[32];
unsigned char nambuf[32];
unsigned char datbuf[32];
unsigned char buffer[8192*2];
strcpy( datbuf, "1999/11/19/13:15:22.984" );
strcpy( jobbuf, "" );
strcpy( nambuf, "" );
/* Write log line prefix: */
sprintf(
buffer,
"date:%s muq:%03lld.%03lld.%03lld.%03lld:%05lld job:%16s user:%-16s msg: ",
datbuf,
sys_Ip0,
sys_Ip1,
sys_Ip2,
sys_Ip3,
sys_Muq_Port,
jobbuf,
nambuf
);
printf("buffer = '%s'\n", buffer );
exit(0);
}
>Fix:
Given code works fine on linux: If FreeBSD is switching to
glibc, that will presumably resolve the problem.
>Release-Note:
>Audit-Trail:
>Unformatted:
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