diff options
| author | Tony Hutter <[email protected]> | 2018-04-04 10:16:47 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2018-04-04 10:16:47 -0700 |
| commit | 21a4f5cc867b4f166704df84985edc048caa2578 (patch) | |
| tree | 18eb614a113f6a16c9ab5cd3c8247f2230b33cea /lib/libzfs/libzfs_dataset.c | |
| parent | 1724eb62debfaa48f5861660615d49a994945d94 (diff) | |
Fedora 28: Fix misc bounds check compiler warnings
Fix a bunch of (mostly) sprintf/snprintf truncation compiler
warnings that show up on Fedora 28 (GCC 8.0.1).
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Tony Hutter <[email protected]>
Closes #7361
Closes #7368
Diffstat (limited to 'lib/libzfs/libzfs_dataset.c')
| -rw-r--r-- | lib/libzfs/libzfs_dataset.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/lib/libzfs/libzfs_dataset.c b/lib/libzfs/libzfs_dataset.c index 17c17fa79..8ec5b7af4 100644 --- a/lib/libzfs/libzfs_dataset.c +++ b/lib/libzfs/libzfs_dataset.c @@ -1032,10 +1032,11 @@ zfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl, if (prop == ZPROP_INVAL && zfs_prop_userquota(propname)) { zfs_userquota_prop_t uqtype; - char newpropname[128]; + char *newpropname = NULL; char domain[128]; uint64_t rid; uint64_t valary[3]; + int rc; if (userquota_propname_decode(propname, zoned, &uqtype, domain, sizeof (domain), &rid) != 0) { @@ -1092,17 +1093,24 @@ zfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl, * userquota@<hex-rid>-domain, to make it easy * for the kernel to decode. */ - (void) snprintf(newpropname, sizeof (newpropname), - "%s%llx-%s", zfs_userquota_prop_prefixes[uqtype], + rc = asprintf(&newpropname, "%s%llx-%s", + zfs_userquota_prop_prefixes[uqtype], (longlong_t)rid, domain); + if (rc == -1 || newpropname == NULL) { + (void) no_memory(hdl); + goto error; + } + valary[0] = uqtype; valary[1] = rid; valary[2] = intval; if (nvlist_add_uint64_array(ret, newpropname, valary, 3) != 0) { + free(newpropname); (void) no_memory(hdl); goto error; } + free(newpropname); continue; } else if (prop == ZPROP_INVAL && zfs_prop_written(propname)) { zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |