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Fedora 28: Fix misc bounds check compiler warnings

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Fix a bunch of (mostly) sprintf/snprintf truncation compiler
warnings that show up on Fedora 28 (GCC 8.0.1).

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #7361
Closes #7368
This commit is contained in:
Tony Hutter
2018-04-04 10:16:47 -07:00
parent fd01167ffd
commit f5ecab3aef
10 changed files with 80 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/libzfs/libzfs_dataset.c
+11 -3
View File
@@ -1030,10 +1030,11 @@ 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) {
@@ -1088,17 +1089,24 @@ 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,
lib/libzfs/libzfs_sendrecv.c
+1 -1
View File
@@ -3380,7 +3380,7 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap,
* Determine the name of the origin snapshot.
*/
if (originsnap) {
(void) strncpy(origin, originsnap, sizeof (origin));
(void) strlcpy(origin, originsnap, sizeof (origin));
if (flags->verbose)
(void) printf("using provided clone origin %s\n",
origin);