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make sure that we don't try to allocate negative memory when blks == 0.

This commit is contained in:
christos 1999-09-06 19:52:28 +00:00
parent d1638a0354
commit 0e578b8b02
1 changed files with 8 additions and 5 deletions
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13
sbin/fsck_ffs/inode.c
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@ -1,4 +1,4 @@
/* $NetBSD: inode.c,v 1.30 1998/10/23 01:13:33 thorpej Exp $ */
/* $NetBSD: inode.c,v 1.31 1999/09/06 19:52:28 christos Exp $ */
/*
* Copyright (c) 1980, 1986, 1993
@ -38,7 +38,7 @@
#if 0
static char sccsid[] = "@(#)inode.c 8.8 (Berkeley) 4/28/95";
#else
__RCSID("$NetBSD: inode.c,v 1.30 1998/10/23 01:13:33 thorpej Exp $");
__RCSID("$NetBSD: inode.c,v 1.31 1999/09/06 19:52:28 christos Exp $");
#endif
#endif /* not lint */
@ -411,13 +411,16 @@ cacheino(dp, inumber)
{
struct inoinfo *inp;
struct inoinfo **inpp;
unsigned int blks;
unsigned int blks, extra;
blks = howmany(iswap64(dp->di_size), sblock->fs_bsize);
if (blks > NDADDR)
blks = NDADDR + NIADDR;
inp = (struct inoinfo *)
malloc(sizeof(*inp) + (blks - 1) * sizeof(ufs_daddr_t));
if (blks > 0)
extra = (blks - 1) * sizeof(ufs_daddr_t);
else
extra = 0;
inp = (struct inoinfo *) malloc(sizeof(*inp) + extra);
if (inp == NULL)
return;
inpp = &inphead[inumber % numdirs];