Date: Fri, 24 May 1996 14:31:04 +0200 From: Zahemszky Gabor <zgabor@code.hu> To: FreeBSD-gnats-submit@freebsd.org Subject: bin/1242: S_ISFIFO === S_ISSOCK Message-ID: <199605241231.OAA00390@zg.CoDe.hu> Resent-Message-ID: <199605241230.FAA25944@freefall.freebsd.org>
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>Number: 1242
>Category: bin
>Synopsis: In the "sys/stat.h" file, the S_ISFIFO and S_ISSOCK macros are the same
>Confidential: yes
>Severity: critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Fri May 24 05:30:04 PDT 1996
>Last-Modified:
>Originator: Zahemszky Gabor <zgabor@CoDe.hu>
>Organization:
>Release: FreeBSD 2.1.0-RELEASE i386
>Environment:
FreeBSD 2.1.0-RELEASE from Walnut Creek CD
>Description:
In the /usr/include/sys/stat.h, there are two macros:
S_ISFIFO and S_ISSOCK. They are the same (as mentioned in the
comment). But it's not very usable, eg. the tar (GNU) and cpio (GNU)
from the distribution, save sockets as pipes. And I cannot write
a program like this:
if (S_ISFIFO( f ) ) {
/* it's a fifo */
...
}
else {
if ( S_ISSOCK( f ) ) {
/* it's a socket */
...
}
....
}
because I got fifo every time (or got socket, if I changes the two
``if''-s).
>How-To-Repeat:
Look into the include file, or save /dev/log with tar/cpio, and
restore it, or look into the toc.
>Fix:
You have to make difference between them, as in many other Unices. Eg:
#define S_ISFIFO( m ) (((m) & 0170000 ) == 0010000 )
#define S_ISSOCK( m ) (((m) & 0170000 ) == 0140000 )
>Audit-Trail:
>Unformatted:
help
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