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Re: asprintf in low memory situations

From: Jeff Johnston <jjohnstn at redhat dot com>
To: Thomas Rauscher <trauscher at loytec dot com>
Cc: newlib at sources dot redhat dot com
Date: Fri, 16 Jul 2004 14:44:41 -0400
Subject: Re: asprintf in low memory situations
References: <DC94029480C7754EA2C9E1576AD266FE1820B1@exchange.office.loytec.com>

Thomas Rauscher wrote:

Hi,
it seems that NEWLIB's asprintf does not
free an allocated buffer in fp->_bf._base
when a call to _realloc_r() fails.
This is somewhat different to the BSD and GLIBC implementation. BSD LIBC seems to call free() and set the return pointer to NULL while GLIBC (according to man page) seems to call free() and return the now invalid pointer.

I'm just curious whether this is a design issue or a bug.


It is a bug and has just been fixed in the cvs sources.  The storage is now
freed.

-- Jeff J.

References:
- asprintf in low memory situations
  - From: Thomas Rauscher

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