vasprintf bugs

[Eric Blake]

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According to Eric Blake on 3/12/2007 7:02 AM:
> I noticed these while trying to implement vasnprintf.
> 
> 2007-03-12  Eric Blake  <ebb9@byu.net>
> 
> 	* libc/stdio/fvwrite.c (__sfvwrite_r): Fix reentrancy.
> 	* libc/stdio/vasprintf.c (vasprintf, _vasprintf_r): Pass failed
> 	allocation to caller.
> 

Resubmit - the integer-only and non-va_list variants were also affected.

2007-03-12  Eric Blake  <ebb9@byu.net>

	* libc/stdio/fvwrite.c (__sfvwrite_r): Fix reentrancy.
	* libc/stdio/vasprintf.c (vasprintf, _vasprintf_r): Pass failed
	allocation to caller.
	* libc/stdio/asprintf.c (_asprintf_r, asprintf): Likewise.
	* libc/stdio/asiprintf.c (_asiprintf_r, asiprintf): Likewise.
	* libc/stdio/vasiprintf.c (vasiprintf, _vasiprintf_r): Likewise.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             ebb9@byu.net
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