JehanneOS/newlib
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

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

Browse Source 
* 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.
This commit is contained in:
Jeff Johnston
2007-03-12 20:30:08 +00:00
parent 9c28809c0f
commit 99304ce6c4
6 changed files with 63 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
newlib/libc/stdio/fvwrite.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 1990, 2006 The Regents of the University of California.
* Copyright (c) 1990, 2006, 2007 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
@ -129,7 +129,7 @@ _DEFUN(__sfvwrite_r, (ptr, fp, uio),
{
if (len >= w && fp->_flags & __SMBF)
{ /* must be asprintf family */
unsigned char *ptr;
unsigned char *str;
int curpos = (fp->_p - fp->_bf._base);
/* Choose a geometric growth factor to avoid
quadratic realloc behavior, but use a rate less
@ -141,17 +141,16 @@ _DEFUN(__sfvwrite_r, (ptr, fp, uio),
int newsize = fp->_bf._size * 3 / 2;
if (newsize < curpos + len + 1)
newsize = curpos + len + 1;
ptr = (unsigned char *)_realloc_r (_REENT,
fp->_bf._base,
newsize);
if (!ptr)
str = (unsigned char *)_realloc_r (ptr, fp->_bf._base,
newsize);
if (!str)
{
/* Free buffer which is no longer used. */
_free_r (_REENT, fp->_bf._base);
_free_r (ptr, fp->_bf._base);
goto err;
}
fp->_bf._base = ptr;
fp->_p = ptr + curpos;
fp->_bf._base = str;
fp->_p = str + curpos;
fp->_bf._size = newsize;
w = len;
fp->_w = newsize - curpos;