Truncate exclusion names to have a terminal '\0'

[lttng-tools.git] / src / lib / lttng-ctl / lttng-ctl.c

diff --git a/src/lib/lttng-ctl/lttng-ctl.c b/src/lib/lttng-ctl/lttng-ctl.c
index ae27e6b5b3c42ca37c496631f4de793ee4733449..665aba57d7cb80f37656c670fe6d3760747eb7a0 100644 (file)
--- a/src/lib/lttng-ctl/lttng-ctl.c
+++ b/src/lib/lttng-ctl/lttng-ctl.c
@@ -999,7 +999,8 @@ int lttng_enable_event_with_exclusions(struct lttng_handle *handle,
        /* Put exclusion names first in the data */
        while (exclusion_count--) {
                strncpy(varlen_data + LTTNG_SYMBOL_NAME_LEN * exclusion_count,
-                       *(exclusion_list + exclusion_count), LTTNG_SYMBOL_NAME_LEN);
+                       *(exclusion_list + exclusion_count),
+                       LTTNG_SYMBOL_NAME_LEN - 1);
        }
        /* Add filter expression next */
        if (lsm.u.enable.expression_len != 0) {