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preprocessor/556: cpplib uses freed file descriptors
- To: gcc-gnats at gcc dot gnu dot org
- Subject: preprocessor/556: cpplib uses freed file descriptors
- From: cato at df dot lth dot se
- Date: 20 Sep 2000 04:45:12 -0000
- Reply-To: cato at df dot lth dot se
- Resent-Cc: gcc-prs at gcc dot gnu dot org, gcc-bugs at gcc dot gnu dot org
- Resent-Reply-To: gcc-gnats@gcc.gnu.org, cato@df.lth.se
>Number: 556
>Category: preprocessor
>Synopsis: cpplib uses freed file descriptors
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Tue Sep 19 21:46:00 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator: Krister Walfridsson
>Release: 2.96 (ss-20000918)
>Organization:
>Environment:
i386-unknown-netbsd1.5 (a.out)
>Description:
cpplib from ss-20000918 tries to use a filedescriptor fd == -1 when compiling the following small program:
--- /dev/null Wed Sep 20 04:59:26 2000
+++ foo.c Wed Sep 20 06:39:57 2000
@@ -0,0 +1,3 @@
+#include "foo.h"
+#undef FOO
+#include "foo.h"
--- /dev/null Wed Sep 20 04:59:26 2000
+++ foo.h Wed Sep 20 06:40:00 2000
@@ -0,0 +1,3 @@
+#ifndef FOO
+#define FOO
+#endif
Compilation gives the error:
> gcc foo.c
foo.c:3:17: foo.h: Bad file descriptor
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted: