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Fix PR7761: clip overly large length rather than failing

This commit is contained in:
sommerfeld 1999-06-19 18:01:26 +00:00
parent 656c580511
commit 1425b5931b
1 changed files with 4 additions and 3 deletions
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7
sys/kern/vfs_getcwd.c
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@ -1,4 +1,4 @@
/* $NetBSD: vfs_getcwd.c,v 1.6 1999/04/30 18:43:00 thorpej Exp $ */
/* $NetBSD: vfs_getcwd.c,v 1.7 1999/06/19 18:01:26 sommerfeld Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
@ -481,7 +481,6 @@ int proc_isunder (p1, p2)
return vn_isunder(r1, r2, p2);
}
int sys___getcwd(p, v, retval)
struct proc *p;
void *v;
@ -498,7 +497,9 @@ int sys___getcwd(p, v, retval)
int len = SCARG(uap, length);
int lenused;
if ((len < 2) || (len > MAXPATHLEN*4))
if (len > MAXPATHLEN*4)
len = MAXPATHLEN*4;
else if (len < 2)
return ERANGE;
path = (char *)malloc(len, M_TEMP, M_WAITOK);