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Re: [PATCH] libio: freopen of default streams crashes in old programs [BZ #24632]
- From: Florian Weimer <fweimer at redhat dot com>
- To: Andreas Schwab <schwab at suse dot de>
- Cc: libc-alpha at sourceware dot org
- Date: Wed, 12 Jun 2019 14:48:24 +0200
- Subject: Re: [PATCH] libio: freopen of default streams crashes in old programs [BZ #24632]
- References: <8736kqaj31.fsf@oldenburg2.str.redhat.com> <mvmzhmnkm7k.fsf@suse.de>
* Andreas Schwab:
> On Jun 03 2019, Florian Weimer <fweimer@redhat.com> wrote:
>
>> [BZ #24632]
>> * libio/libioP.h (_IO_JUMPS_FUNC_UPDATE): New macro.
>> * libio/freopen.c (freopen): Use it.
>
> Ok.
Thanks.
>> diff --git a/libio/libioP.h b/libio/libioP.h
>> index 66afaa8968..f17c6e68e4 100644
>> --- a/libio/libioP.h
>> +++ b/libio/libioP.h
>> @@ -108,9 +108,14 @@
>> (IO_validate_vtable \
>> (*(struct _IO_jump_t **) ((void *) &_IO_JUMPS_FILE_plus (THIS) \
>> + (THIS)->_vtable_offset)))
>> +# define _IO_JUMPS_FUNC_UPDATE(THIS, VTABLE) \
>> + (*(const struct _IO_jump_t **) ((void *) &_IO_JUMPS_FILE_plus (THIS) \
>> + + (THIS)->_vtable_offset) = (VTABLE))
Ah, fixed.
Florian