Bug 446406 - regexp.h header unaware of __REPB_PREFIX macro usage in regex.h
regexp.h header unaware of __REPB_PREFIX macro usage in regex.h
Product: Fedora
Classification: Fedora
Component: glibc (Show other bugs)
All Linux
low Severity medium
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Assigned To: Jakub Jelinek
Fedora Extras Quality Assurance
Depends On:
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Reported: 2008-05-14 10:27 EDT by Need Real Name
Modified: 2008-07-23 03:08 EDT (History)
0 users

See Also:
Fixed In Version: 2.8-8
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2008-07-23 03:08:30 EDT
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Regression: ---
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RHEL 7.3 requirements from Atomic Host:
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Attachments (Terms of Use)
preprocessed source from xview-3.2p1.4/clients/olvwm-4.1/virtual.c (308.58 KB, text/plain)
2008-05-14 10:27 EDT, Need Real Name
no flags Details

  None (edit)
Description Need Real Name 2008-05-14 10:27:54 EDT
Description of problem:
The changes to regex.h create undefined symbols for the buffer and 
allocated fields of regex_t structures in regexp,h when -D_USE_GNU
is not in use. The  __REPB_PREFIX macro results in a '__' prefix to
the fields of the regex_t structure in such a case.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Complile the attached virtual.i preprocessed source from
This was generated with the command...

   gcc -m32 -O2 -fno-strength-reduce -fno-strict-aliasing
-I/tmp/xview-3.2p1.4-21.2.fc9-soft/usr/openwin/include -I. -I/usr/include
-DMAXPID=32768 -I/usr/include/X11 -DOPENWINHOME_DEFAULT=\"/usr/openwin\" -O2 -g
-pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size=4 -m32 -march=i386 -mtune=generic
-fasynchronous-unwind-tables -save-temps -c -o virtual.o virtual.c

Actual results:
I expected no errors in the compilation.

Expected results:
The following errors occurred...

./regexp.h: In function ‘compile’:
./regexp.h:132: error: ‘regex_t’ has no member named ‘buffer’
./regexp.h:133: error: ‘regex_t’ has no member named ‘allocated’
./regexp.h:133: error: ‘regex_t’ has no member named ‘buffer’

Additional info:
I believe that the regexp.h header needs to be made aware of the
usage of the __REPB_PREFIX macro in regex.h when the fields of a
egex_t structure is declared. A fix that works here is...

--- regexp.h    2008-05-14 10:17:11.000000000 -0400
+++ regexp.h.patched    2008-05-14 09:45:13.000000000 -0400
@@ -129,8 +129,13 @@
   __expr_ptr = (regex_t *) expbuf;
   /* The remaining space in the buffer can be used for the compiled
      pattern.  */
+#ifdef __USE_GNU
   __expr_ptr->buffer = expbuf + sizeof (regex_t);
   __expr_ptr->allocated = endbuf -  (char *) __expr_ptr->buffer;
+  __expr_ptr->__buffer = expbuf + sizeof (regex_t);
+  __expr_ptr->__allocated = endbuf -  (char *) __expr_ptr->__buffer;

   while ((__ch = (GETC ())) != eof)
@@ -198,7 +203,11 @@

   /* Everything is ok.  */
+#ifdef __USE_GNU
   RETURN ((char *) (__expr_ptr->buffer + __expr_ptr->used));
+  RETURN ((char *) (__expr_ptr->__buffer + __expr_ptr->used));
Comment 1 Need Real Name 2008-05-14 10:27:54 EDT
Created attachment 305367 [details]
preprocessed source from xview-3.2p1.4/clients/olvwm-4.1/virtual.c
Comment 2 Jakub Jelinek 2008-06-15 22:00:02 EDT
Fixed in rawhide, will be eventually backported to F9 updates.
Comment 3 Fedora Update System 2008-07-08 16:27:20 EDT
glibc-2.8-7 has been submitted as an update for Fedora 9
Comment 4 Fedora Update System 2008-07-23 03:08:19 EDT
glibc-2.8-8 has been pushed to the Fedora 9 stable repository.  If problems still persist, please make note of it in this bug report.

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