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libzfs: format safety

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Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #12116
This commit is contained in:
наб 2021-05-15 12:23:45 +02:00 committed by Brian Behlendorf
parent c4e5a07fd0
commit f00f469052
6 changed files with 52 additions and 65 deletions
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26
lib/libzfs/libzfs_dataset.c
View File

@ -1261,9 +1261,9 @@ zfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl,
intval > maxbs || !ISP2(intval))) { intval > maxbs || !ISP2(intval))) {
zfs_nicebytes(maxbs, buf, sizeof (buf)); zfs_nicebytes(maxbs, buf, sizeof (buf));
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"invalid '%s=%d' property: must be zero or " "invalid '%s=%llu' property: must be zero "
"a power of 2 from 512B to %s"), propname, "or a power of 2 from 512B to %s"),
intval, buf); propname, (unsigned long long)intval, buf);
(void) zfs_error(hdl, EZFS_BADPROP, errbuf); (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error; goto error;
} }
@ -4835,8 +4835,6 @@ zfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type,
zc.zc_nvlist_dst_size = sizeof (buf); zc.zc_nvlist_dst_size = sizeof (buf);
if (zfs_ioctl(hdl, ZFS_IOC_USERSPACE_MANY, &zc) != 0) { if (zfs_ioctl(hdl, ZFS_IOC_USERSPACE_MANY, &zc) != 0) {
char errbuf[1024];
if ((errno == ENOTSUP && if ((errno == ENOTSUP &&
(type == ZFS_PROP_USEROBJUSED || (type == ZFS_PROP_USEROBJUSED ||
type == ZFS_PROP_GROUPOBJUSED || type == ZFS_PROP_GROUPOBJUSED ||
@ -4848,10 +4846,9 @@ zfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type,
type == ZFS_PROP_PROJECTQUOTA))) type == ZFS_PROP_PROJECTQUOTA)))
break; break;
(void) snprintf(errbuf, sizeof (errbuf), return (zfs_standard_error_fmt(hdl, errno,
dgettext(TEXT_DOMAIN, dgettext(TEXT_DOMAIN,
"cannot get used/quota for %s"), zc.zc_name); "cannot get used/quota for %s"), zc.zc_name));
return (zfs_standard_error_fmt(hdl, errno, errbuf));
} }
if (zc.zc_nvlist_dst_size == 0) if (zc.zc_nvlist_dst_size == 0)
break; break;
@ -5080,7 +5077,7 @@ zfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag,
(void) zfs_error(hdl, EZFS_BADVERSION, errbuf); (void) zfs_error(hdl, EZFS_BADVERSION, errbuf);
break; break;
default: default:
(void) zfs_standard_error_fmt(hdl, errno, errbuf); (void) zfs_standard_error(hdl, errno, errbuf);
} }
} }
@ -5099,7 +5096,7 @@ zfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag,
(void) zfs_error(hdl, EZFS_BADTYPE, errbuf); (void) zfs_error(hdl, EZFS_BADTYPE, errbuf);
break; break;
default: default:
(void) zfs_standard_error_fmt(hdl, (void) zfs_standard_error(hdl,
fnvpair_value_int32(elem), errbuf); fnvpair_value_int32(elem), errbuf);
} }
} }
@ -5156,17 +5153,16 @@ tryagain:
err = zfs_error(hdl, EZFS_NOENT, errbuf); err = zfs_error(hdl, EZFS_NOENT, errbuf);
break; break;
default: default:
err = zfs_standard_error_fmt(hdl, errno, errbuf); err = zfs_standard_error(hdl, errno, errbuf);
break; break;
} }
} else { } else {
/* success */ /* success */
int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0); int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0);
if (rc) { if (rc) {
(void) snprintf(errbuf, sizeof (errbuf), dgettext( err = zfs_standard_error_fmt(hdl, rc, dgettext(
TEXT_DOMAIN, "cannot get permissions on '%s'"), TEXT_DOMAIN, "cannot get permissions on '%s'"),
zc.zc_name); zc.zc_name);
err = zfs_standard_error_fmt(hdl, rc, errbuf);
} }
} }
@ -5219,7 +5215,7 @@ zfs_set_fsacl(zfs_handle_t *zhp, boolean_t un, nvlist_t *nvl)
err = zfs_error(hdl, EZFS_NOENT, errbuf); err = zfs_error(hdl, EZFS_NOENT, errbuf);
break; break;
default: default:
err = zfs_standard_error_fmt(hdl, errno, errbuf); err = zfs_standard_error(hdl, errno, errbuf);
break; break;
} }
} }
@ -5256,7 +5252,7 @@ zfs_get_holds(zfs_handle_t *zhp, nvlist_t **nvl)
err = zfs_error(hdl, EZFS_NOENT, errbuf); err = zfs_error(hdl, EZFS_NOENT, errbuf);
break; break;
default: default:
err = zfs_standard_error_fmt(hdl, errno, errbuf); err = zfs_standard_error(hdl, errno, errbuf);
break; break;
} }
} }

10
lib/libzfs/libzfs_diff.c
View File

@ -732,7 +732,7 @@ zfs_show_diffs(zfs_handle_t *zhp, int outfd, const char *fromsnap,
} }
if (pipe2(pipefd, O_CLOEXEC)) { if (pipe2(pipefd, O_CLOEXEC)) {
zfs_error_aux(zhp->zfs_hdl, strerror(errno)); zfs_error_aux(zhp->zfs_hdl, "%s", strerror(errno));
teardown_differ_info(&di); teardown_differ_info(&di);
return (zfs_error(zhp->zfs_hdl, EZFS_PIPEFAILED, errbuf)); return (zfs_error(zhp->zfs_hdl, EZFS_PIPEFAILED, errbuf));
} }
@ -745,7 +745,7 @@ zfs_show_diffs(zfs_handle_t *zhp, int outfd, const char *fromsnap,
di.datafd = pipefd[0]; di.datafd = pipefd[0];
if (pthread_create(&tid, NULL, differ, &di)) { if (pthread_create(&tid, NULL, differ, &di)) {
zfs_error_aux(zhp->zfs_hdl, strerror(errno)); zfs_error_aux(zhp->zfs_hdl, "%s", strerror(errno));
(void) close(pipefd[0]); (void) close(pipefd[0]);
(void) close(pipefd[1]); (void) close(pipefd[1]);
teardown_differ_info(&di); teardown_differ_info(&di);
@ -771,14 +771,14 @@ zfs_show_diffs(zfs_handle_t *zhp, int outfd, const char *fromsnap,
zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN,
"\n Not an earlier snapshot from the same fs")); "\n Not an earlier snapshot from the same fs"));
} else if (errno != EPIPE || di.zerr == 0) { } else if (errno != EPIPE || di.zerr == 0) {
zfs_error_aux(zhp->zfs_hdl, strerror(errno)); zfs_error_aux(zhp->zfs_hdl, "%s", strerror(errno));
} }
(void) close(pipefd[1]); (void) close(pipefd[1]);
(void) pthread_cancel(tid); (void) pthread_cancel(tid);
(void) pthread_join(tid, NULL); (void) pthread_join(tid, NULL);
teardown_differ_info(&di); teardown_differ_info(&di);
if (di.zerr != 0 && di.zerr != EPIPE) { if (di.zerr != 0 && di.zerr != EPIPE) {
zfs_error_aux(zhp->zfs_hdl, strerror(di.zerr)); zfs_error_aux(zhp->zfs_hdl, "%s", strerror(di.zerr));
return (zfs_error(zhp->zfs_hdl, EZFS_DIFF, di.errbuf)); return (zfs_error(zhp->zfs_hdl, EZFS_DIFF, di.errbuf));
} else { } else {
return (zfs_error(zhp->zfs_hdl, EZFS_DIFFDATA, errbuf)); return (zfs_error(zhp->zfs_hdl, EZFS_DIFFDATA, errbuf));
@ -789,7 +789,7 @@ zfs_show_diffs(zfs_handle_t *zhp, int outfd, const char *fromsnap,
(void) pthread_join(tid, NULL); (void) pthread_join(tid, NULL);
if (di.zerr != 0) { if (di.zerr != 0) {
zfs_error_aux(zhp->zfs_hdl, strerror(di.zerr)); zfs_error_aux(zhp->zfs_hdl, "%s", strerror(di.zerr));
return (zfs_error(zhp->zfs_hdl, EZFS_DIFF, di.errbuf)); return (zfs_error(zhp->zfs_hdl, EZFS_DIFF, di.errbuf));
} }
teardown_differ_info(&di); teardown_differ_info(&di);

8
lib/libzfs/libzfs_mount.c
View File

@ -538,19 +538,17 @@ zfs_mount_at(zfs_handle_t *zhp, const char *options, int flags,
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"Insufficient privileges")); "Insufficient privileges"));
} else if (rc == ENOTSUP) { } else if (rc == ENOTSUP) {
char buf[256];
int spa_version; int spa_version;
VERIFY(zfs_spa_version(zhp, &spa_version) == 0); VERIFY(zfs_spa_version(zhp, &spa_version) == 0);
(void) snprintf(buf, sizeof (buf), zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
dgettext(TEXT_DOMAIN, "Can't mount a version %lld " "Can't mount a version %llu "
"file system on a version %d pool. Pool must be" "file system on a version %d pool. Pool must be"
" upgraded to mount this file system."), " upgraded to mount this file system."),
(u_longlong_t)zfs_prop_get_int(zhp, (u_longlong_t)zfs_prop_get_int(zhp,
ZFS_PROP_VERSION), spa_version); ZFS_PROP_VERSION), spa_version);
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, buf));
} else { } else {
zfs_error_aux(hdl, strerror(rc)); zfs_error_aux(hdl, "%s", strerror(rc));
} }
return (zfs_error_fmt(hdl, EZFS_MOUNTFAILED, return (zfs_error_fmt(hdl, EZFS_MOUNTFAILED,
dgettext(TEXT_DOMAIN, "cannot mount '%s'"), dgettext(TEXT_DOMAIN, "cannot mount '%s'"),

36
lib/libzfs/libzfs_pool.c
View File

@ -563,8 +563,8 @@ zpool_valid_proplist(libzfs_handle_t *hdl, const char *poolname,
if (intval < version || if (intval < version ||
!SPA_VERSION_IS_SUPPORTED(intval)) { !SPA_VERSION_IS_SUPPORTED(intval)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"property '%s' number %d is invalid."), "property '%s' number %llu is invalid."),
propname, intval); propname, (unsigned long long)intval);
(void) zfs_error(hdl, EZFS_BADVERSION, errbuf); (void) zfs_error(hdl, EZFS_BADVERSION, errbuf);
goto error; goto error;
} }
@ -574,10 +574,11 @@ zpool_valid_proplist(libzfs_handle_t *hdl, const char *poolname,
if (intval != 0 && if (intval != 0 &&
(intval < ASHIFT_MIN || intval > ASHIFT_MAX)) { (intval < ASHIFT_MIN || intval > ASHIFT_MAX)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"property '%s' number %d is invalid, only " "property '%s' number %llu is invalid, "
"values between %" PRId32 " and " "only values between %" PRId32 " and %"
"%" PRId32 " are allowed."), PRId32 " are allowed."),
propname, intval, ASHIFT_MIN, ASHIFT_MAX); propname, (unsigned long long)intval,
ASHIFT_MIN, ASHIFT_MAX);
(void) zfs_error(hdl, EZFS_BADPROP, errbuf); (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error; goto error;
} }
@ -685,7 +686,7 @@ zpool_valid_proplist(libzfs_handle_t *hdl, const char *poolname,
case ZPOOL_COMPATIBILITY_BADFILE: case ZPOOL_COMPATIBILITY_BADFILE:
case ZPOOL_COMPATIBILITY_BADTOKEN: case ZPOOL_COMPATIBILITY_BADTOKEN:
case ZPOOL_COMPATIBILITY_NOFILES: case ZPOOL_COMPATIBILITY_NOFILES:
zfs_error_aux(hdl, report); zfs_error_aux(hdl, "%s", report);
(void) zfs_error(hdl, EZFS_BADPROP, errbuf); (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error; goto error;
} }
@ -1648,10 +1649,6 @@ zpool_export_common(zpool_handle_t *zhp, boolean_t force, boolean_t hardforce,
const char *log_str) const char *log_str)
{ {
zfs_cmd_t zc = {"\0"}; zfs_cmd_t zc = {"\0"};
char msg[1024];
(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
"cannot export '%s'"), zhp->zpool_name);
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
zc.zc_cookie = force; zc.zc_cookie = force;
@ -1666,11 +1663,13 @@ zpool_export_common(zpool_handle_t *zhp, boolean_t force, boolean_t hardforce,
"'%s' has an active shared spare which could be" "'%s' has an active shared spare which could be"
" used by other pools once '%s' is exported."), " used by other pools once '%s' is exported."),
zhp->zpool_name, zhp->zpool_name); zhp->zpool_name, zhp->zpool_name);
return (zfs_error(zhp->zpool_hdl, EZFS_ACTIVE_SPARE, return (zfs_error_fmt(zhp->zpool_hdl, EZFS_ACTIVE_SPARE,
msg)); dgettext(TEXT_DOMAIN, "cannot export '%s'"),
zhp->zpool_name));
default: default:
return (zpool_standard_error_fmt(zhp->zpool_hdl, errno, return (zpool_standard_error_fmt(zhp->zpool_hdl, errno,
msg)); dgettext(TEXT_DOMAIN, "cannot export '%s'"),
zhp->zpool_name));
} }
} }
@ -2080,7 +2079,7 @@ zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname,
"the zgenhostid(8) command.\n")); "the zgenhostid(8) command.\n"));
} }
(void) zfs_error_aux(hdl, aux); (void) zfs_error_aux(hdl, "%s", aux);
} }
(void) zfs_error(hdl, EZFS_ACTIVE_POOL, desc); (void) zfs_error(hdl, EZFS_ACTIVE_POOL, desc);
break; break;
@ -4520,13 +4519,10 @@ int
zpool_events_clear(libzfs_handle_t *hdl, int *count) zpool_events_clear(libzfs_handle_t *hdl, int *count)
{ {
zfs_cmd_t zc = {"\0"}; zfs_cmd_t zc = {"\0"};
char msg[1024];
(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
"cannot clear events"));
if (zfs_ioctl(hdl, ZFS_IOC_EVENTS_CLEAR, &zc) != 0) if (zfs_ioctl(hdl, ZFS_IOC_EVENTS_CLEAR, &zc) != 0)
return (zpool_standard_error_fmt(hdl, errno, msg)); return (zpool_standard_error(hdl, errno,
dgettext(TEXT_DOMAIN, "cannot clear events")));
if (count != NULL) if (count != NULL)
*count = (int)zc.zc_cookie; /* # of events cleared */ *count = (int)zc.zc_cookie; /* # of events cleared */

33
lib/libzfs/libzfs_sendrecv.c
View File

@ -768,7 +768,7 @@ zfs_send_space(zfs_handle_t *zhp, const char *snapname, const char *from,
case EFAULT: case EFAULT:
case EROFS: case EROFS:
case EINVAL: case EINVAL:
zfs_error_aux(hdl, strerror(error)); zfs_error_aux(hdl, "%s", strerror(error));
return (zfs_error(hdl, EZFS_BADBACKUP, errbuf)); return (zfs_error(hdl, EZFS_BADBACKUP, errbuf));
default: default:
@ -849,7 +849,7 @@ dump_ioctl(zfs_handle_t *zhp, const char *fromsnap, uint64_t fromsnap_obj,
case ERANGE: case ERANGE:
case EFAULT: case EFAULT:
case EROFS: case EROFS:
zfs_error_aux(hdl, strerror(errno)); zfs_error_aux(hdl, "%s", strerror(errno));
return (zfs_error(hdl, EZFS_BADBACKUP, errbuf)); return (zfs_error(hdl, EZFS_BADBACKUP, errbuf));
default: default:
@ -1479,7 +1479,7 @@ estimate_size(zfs_handle_t *zhp, const char *from, int fd, sendflags_t *flags,
err = pthread_create(&ptid, NULL, err = pthread_create(&ptid, NULL,
send_progress_thread, &pa); send_progress_thread, &pa);
if (err != 0) { if (err != 0) {
zfs_error_aux(zhp->zfs_hdl, strerror(errno)); zfs_error_aux(zhp->zfs_hdl, "%s", strerror(errno));
return (zfs_error(zhp->zfs_hdl, return (zfs_error(zhp->zfs_hdl,
EZFS_THREADCREATEFAILED, errbuf)); EZFS_THREADCREATEFAILED, errbuf));
} }
@ -1505,7 +1505,7 @@ estimate_size(zfs_handle_t *zhp, const char *from, int fd, sendflags_t *flags,
} }
if (err != 0) { if (err != 0) {
zfs_error_aux(zhp->zfs_hdl, strerror(err)); zfs_error_aux(zhp->zfs_hdl, "%s", strerror(err));
return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP,
errbuf)); errbuf));
} }
@ -1822,7 +1822,7 @@ zfs_send_resume_impl(libzfs_handle_t *hdl, sendflags_t *flags, int outfd,
case ERANGE: case ERANGE:
case EFAULT: case EFAULT:
case EROFS: case EROFS:
zfs_error_aux(hdl, strerror(errno)); zfs_error_aux(hdl, "%s", strerror(errno));
return (zfs_error(hdl, EZFS_BADBACKUP, errbuf)); return (zfs_error(hdl, EZFS_BADBACKUP, errbuf));
default: default:
@ -2082,13 +2082,13 @@ send_prelim_records(zfs_handle_t *zhp, const char *from, int fd,
err = dump_record(&drr, packbuf, buflen, &zc, fd); err = dump_record(&drr, packbuf, buflen, &zc, fd);
free(packbuf); free(packbuf);
if (err != 0) { if (err != 0) {
zfs_error_aux(zhp->zfs_hdl, strerror(err)); zfs_error_aux(zhp->zfs_hdl, "%s", strerror(err));
return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP,
errbuf)); errbuf));
} }
err = send_conclusion_record(fd, &zc); err = send_conclusion_record(fd, &zc);
if (err != 0) { if (err != 0) {
zfs_error_aux(zhp->zfs_hdl, strerror(err)); zfs_error_aux(zhp->zfs_hdl, "%s", strerror(err));
return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP,
errbuf)); errbuf));
} }
@ -2507,7 +2507,7 @@ zfs_send_one(zfs_handle_t *zhp, const char *from, int fd, sendflags_t *flags,
err = pthread_create(&ptid, NULL, err = pthread_create(&ptid, NULL,
send_progress_thread, &pa); send_progress_thread, &pa);
if (err != 0) { if (err != 0) {
zfs_error_aux(zhp->zfs_hdl, strerror(errno)); zfs_error_aux(zhp->zfs_hdl, "%s", strerror(errno));
return (zfs_error(zhp->zfs_hdl, return (zfs_error(zhp->zfs_hdl,
EZFS_THREADCREATEFAILED, errbuf)); EZFS_THREADCREATEFAILED, errbuf));
} }
@ -2522,13 +2522,10 @@ zfs_send_one(zfs_handle_t *zhp, const char *from, int fd, sendflags_t *flags,
(void) pthread_cancel(ptid); (void) pthread_cancel(ptid);
(void) pthread_join(ptid, &status); (void) pthread_join(ptid, &status);
int error = (int)(uintptr_t)status; int error = (int)(uintptr_t)status;
if (error != 0 && status != PTHREAD_CANCELED) { if (error != 0 && status != PTHREAD_CANCELED)
char errbuf[1024]; return (zfs_standard_error_fmt(hdl, error,
(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
dgettext(TEXT_DOMAIN, "progress thread exited " "progress thread exited nonzero")));
"nonzero"));
return (zfs_standard_error(hdl, error, errbuf));
}
} }
if (flags->props || flags->holds || flags->backup) { if (flags->props || flags->holds || flags->backup) {
@ -2576,7 +2573,7 @@ zfs_send_one(zfs_handle_t *zhp, const char *from, int fd, sendflags_t *flags,
case EPIPE: case EPIPE:
case ERANGE: case ERANGE:
case EROFS: case EROFS:
zfs_error_aux(hdl, strerror(errno)); zfs_error_aux(hdl, "%s", strerror(errno));
return (zfs_error(hdl, EZFS_BADBACKUP, errbuf)); return (zfs_error(hdl, EZFS_BADBACKUP, errbuf));
default: default:
@ -5078,8 +5075,8 @@ zfs_receive_impl(libzfs_handle_t *hdl, const char *tosnap,
if (!DMU_STREAM_SUPPORTED(featureflags) || if (!DMU_STREAM_SUPPORTED(featureflags) ||
(hdrtype != DMU_SUBSTREAM && hdrtype != DMU_COMPOUNDSTREAM)) { (hdrtype != DMU_SUBSTREAM && hdrtype != DMU_COMPOUNDSTREAM)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"stream has unsupported feature, feature flags = %lx"), "stream has unsupported feature, feature flags = %llx"),
featureflags); (unsigned long long)featureflags);
return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); return (zfs_error(hdl, EZFS_BADSTREAM, errbuf));
} }

4
lib/libzfs/libzfs_util.c
View File

@ -486,7 +486,7 @@ zfs_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
zfs_verror(hdl, EZFS_BADPROP, fmt, ap); zfs_verror(hdl, EZFS_BADPROP, fmt, ap);
break; break;
default: default:
zfs_error_aux(hdl, strerror(error)); zfs_error_aux(hdl, "%s", strerror(error));
zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap); zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
break; break;
} }
@ -737,7 +737,7 @@ zpool_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
zfs_verror(hdl, EZFS_IOC_NOTSUPPORTED, fmt, ap); zfs_verror(hdl, EZFS_IOC_NOTSUPPORTED, fmt, ap);
break; break;
default: default:
zfs_error_aux(hdl, strerror(error)); zfs_error_aux(hdl, "%s", strerror(error));
zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap); zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
} }