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(__getcwd): Use temporary variable to store result of realloc instead

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of using BUF.
This commit is contained in:
Ulrich Drepper 1998-10-05 10:59:18 +00:00
parent 3dcc6e06be
commit 0f8436b12c
1 changed files with 7 additions and 5 deletions
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12
sysdeps/posix/getcwd.c
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@ -1,4 +1,4 @@
/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
/* Copyright (C) 1991,92,93,94,95,96,97,98 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -336,17 +336,19 @@ __getcwd (buf, size)
}
else
{
char *tmp;
size *= 2;
buf = realloc (path, size);
if (buf == NULL)
tmp = realloc (path, size);
if (tmp == NULL)
{
(void) __closedir (dirstream);
free (path);
__set_errno (ENOMEM);/* closedir might have changed it.*/
goto lose;
}
pathp = &buf[pathp - path + size / 2];
path = buf;
pathp = &tmp[pathp - path + size / 2];
path = tmp;
/* Move current contents up to the end of the buffer.
This is guaranteed to be non-overlapping. */
memcpy (pathp, pathp - size / 2, path + size - pathp);