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Fix missing vdev names in zpool status output

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Commit 858219c makes more sense down below in the 'if (verbose)'
section of the code.  Initially, buf and path will never point
to the same location.  Once 'path = buf' is set on a raidz vdev,
the code may drop into the verbose section depending on the
verbose flag.  In here, using a tmpbuf makes sense since now
'buf == path'.

This issue does not occur in the upstream Solaris code because
their implementations of snprintf() allow for buf and path to
be the same address.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #57
This commit is contained in:
Michael Martin 2012-09-05 09:46:29 -07:00 committed by Brian Behlendorf
parent cafa9709f3
commit fc24f7c887
1 changed files with 6 additions and 6 deletions
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12
lib/libzfs/libzfs_pool.c
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@ -3134,6 +3134,7 @@ zpool_vdev_name(libzfs_handle_t *hdl, zpool_handle_t *zhp, nvlist_t *nv,
char *path, *devid, *type;
uint64_t value;
char buf[PATH_BUF_LEN];
char tmpbuf[PATH_BUF_LEN];
vdev_stat_t *vs;
uint_t vsc;
@ -3206,13 +3207,12 @@ zpool_vdev_name(libzfs_handle_t *hdl, zpool_handle_t *zhp, nvlist_t *nv,
* If it's a raidz device, we need to stick in the parity level.
*/
if (strcmp(path, VDEV_TYPE_RAIDZ) == 0) {
char tmpbuf[PATH_BUF_LEN];
verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NPARITY,
&value) == 0);
(void) snprintf(tmpbuf, sizeof (tmpbuf), "%s%llu", path,
(void) snprintf(buf, sizeof (buf), "%s%llu", path,
(u_longlong_t)value);
path = tmpbuf;
path = buf;
}
/*
@ -3224,9 +3224,9 @@ zpool_vdev_name(libzfs_handle_t *hdl, zpool_handle_t *zhp, nvlist_t *nv,
verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_ID,
&id) == 0);
(void) snprintf(buf, sizeof (buf), "%s-%llu", path,
(u_longlong_t)id);
path = buf;
(void) snprintf(tmpbuf, sizeof (tmpbuf), "%s-%llu",
path, (u_longlong_t)id);
path = tmpbuf;
}
}