Article View: gnu.emacs.bug
Article #98988(none)
From: Bill Bailey
Date: Tue, 18 Dec 1990 03:07
Date: Tue, 18 Dec 1990 03:07
33 lines
1602 bytes
1602 bytes
Today, I made my first ever personal code modification to the emacs
source. I wanted csh-like cdpath functionality from the 'cd function.
Implementing this required changing the openp() routine in lread.c.
While studying the unmodified source, I discovered what I believe to
be a bug:
/* Check that we can access or open it. */
if (exec_only)
fd = !access (fn, X_OK);
else
fd = open (fn, 0, 0);
if (fd >= 0)
{
/* We succeeded; return this descriptor and filename. */
if (storeptr)
*storeptr = build_string (fn);
return fd;
}
The access() function returns 0 or -1. So (fd >= 0) will always
evaluate to be true which means openp() will always return success.
I believe:
fd = access (fn, X_OK);
is what was intended.
--
William Bailey
Oracle Corp.
400 Oracle Parkway
Redwood City CA 94065
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: fb2f1,d6c67e98fdf4956,start X-Google-Attributes: gidfb2f1,public X-Google-ArrivalTime: 1990-12-17 19:07:43 PST Path: arc1-ca.pugleaf.net!gmdzi!unido!mcsun!uunet!tut.cis.ohio-state.edu!oracle.com!wbailey From: wbailey@oracle.com (Bill Bailey) Newsgroups: gnu.emacs.bug Subject: (none) Message-ID: <1990Dec18.030743.27004@oracle.com> Date: 18 Dec 90 03:07:43 GMT Sender: daemon@tut.cis.ohio-state.edu Reply-To: wbailey@oracle.com Distribution: gnu Organization: Oracle Corp Lines: 33 Approved: bug-gnu-emacs@prep.ai.mit.edu