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Fix coverity defects: CID 147650, 147649, 147647, 147646

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coverity scan CID:147650, Type:copy into fixed size buffer.
coverity scan CID:147649, Type:copy into fixed size buffer.
coverity scan CID:147647, Type:copy into fixed size buffer.
coverity scan CID:147646, Type:copy into fixed size buffer.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: cao.xuewen <cao.xuewen@zte.com.cn>
Closes #5161
This commit is contained in:
cao 2016-09-26 06:08:28 +08:00 committed by Brian Behlendorf
parent 92bc927868
commit 680eada9b0
3 changed files with 9 additions and 5 deletions
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3
module/zfs/dsl_dir.c
View File

@ -203,7 +203,8 @@ dsl_dir_hold_obj(dsl_pool_t *dp, uint64_t ddobj,
sizeof (foundobj), 1, &foundobj);
ASSERT(err || foundobj == ddobj);
#endif
(void) strcpy(dd->dd_myname, tail);
(void) strlcpy(dd->dd_myname, tail,
sizeof (dd->dd_myname));
} else {
err = zap_value_search(dp->dp_meta_objset,
dsl_dir_phys(dd->dd_parent)->

3
module/zfs/zap_micro.c
View File

@ -1110,7 +1110,8 @@ again:
if (mze->mze_name[0] == 0) {
mze->mze_value = value;
mze->mze_cd = cd;
(void) strcpy(mze->mze_name, zn->zn_key_orig);
(void) strlcpy(mze->mze_name, zn->zn_key_orig,
sizeof (mze->mze_name));
zap->zap_m.zap_num_entries++;
zap->zap_m.zap_alloc_next = i+1;
if (zap->zap_m.zap_alloc_next ==

8
module/zfs/zfs_ioctl.c
View File

@ -3928,12 +3928,13 @@ zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist)
VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0);
zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP);
(void) strcpy(zc->zc_name, dataset);
(void) strlcpy(zc->zc_name, dataset, sizeof (zc->zc_name));
pair = nvlist_next_nvpair(props, NULL);
while (pair != NULL) {
next_pair = nvlist_next_nvpair(props, pair);
(void) strcpy(zc->zc_value, nvpair_name(pair));
(void) strlcpy(zc->zc_value, nvpair_name(pair),
sizeof (zc->zc_value));
if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 ||
(err = zfs_secpolicy_inherit_prop(zc, NULL, CRED())) != 0) {
VERIFY(nvlist_remove_nvpair(props, pair) == 0);
@ -4951,7 +4952,8 @@ zfs_ioc_tmp_snapshot(zfs_cmd_t *zc)
error = dsl_dataset_snapshot_tmp(zc->zc_name, snap_name, minor,
hold_name);
if (error == 0)
(void) strcpy(zc->zc_value, snap_name);
(void) strlcpy(zc->zc_value, snap_name,
sizeof (zc->zc_value));
strfree(snap_name);
strfree(hold_name);
zfs_onexit_fd_rele(zc->zc_cleanup_fd);