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Fix: liblttng-ctl: unreported truncations when copying strings
[lttng-tools.git]
/
src
/
lib
/
lttng-ctl
/
rotate.c
diff --git
a/src/lib/lttng-ctl/rotate.c
b/src/lib/lttng-ctl/rotate.c
index bc3a63cc8aa67d8a0bd089e32b56677d0795039f..bd048aa2e07ec1a568a6fb100b324e5e469e9fc6 100644
(file)
--- a/
src/lib/lttng-ctl/rotate.c
+++ b/
src/lib/lttng-ctl/rotate.c
@@
-229,8
+229,11
@@
int lttng_rotate_session(const char *session_name,
memset(&lsm, 0, sizeof(lsm));
lsm.cmd_type = LTTNG_ROTATE_SESSION;
memset(&lsm, 0, sizeof(lsm));
lsm.cmd_type = LTTNG_ROTATE_SESSION;
- lttng_ctl_copy_string(lsm.session.name, session_name,
- sizeof(lsm.session.name));
+
+ ret = lttng_strncpy(lsm.session.name, session_name,
+ sizeof(lsm.session.name));
+ /* Source length already validated. */
+ assert(ret == 0);
ret = lttng_ctl_ask_sessiond(&lsm, (void **) &rotate_return);
if (ret <= 0) {
ret = lttng_ctl_ask_sessiond(&lsm, (void **) &rotate_return);
if (ret <= 0) {
@@
-292,8
+295,10
@@
enum lttng_rotation_status lttng_rotation_update_schedule(
memset(&lsm, 0, sizeof(lsm));
lsm.cmd_type = LTTNG_ROTATION_SET_SCHEDULE;
memset(&lsm, 0, sizeof(lsm));
lsm.cmd_type = LTTNG_ROTATION_SET_SCHEDULE;
-
lttng_ctl_copy_string
(lsm.session.name, session_name,
+
ret = lttng_strncpy
(lsm.session.name, session_name,
sizeof(lsm.session.name));
sizeof(lsm.session.name));
+ /* Source length already validated. */
+ assert(ret == 0);
lsm.u.rotation_set_schedule.type = (uint32_t) schedule->type;
switch (schedule->type) {
lsm.u.rotation_set_schedule.type = (uint32_t) schedule->type;
switch (schedule->type) {
@@
-372,14
+377,23
@@
int get_schedules(const char *session_name,
{
int ret;
struct lttcomm_session_msg lsm;
{
int ret;
struct lttcomm_session_msg lsm;
- struct lttng_session_list_schedules_return *schedules_comm;
+ struct lttng_session_list_schedules_return *schedules_comm
= NULL
;
struct lttng_rotation_schedules *schedules = NULL;
struct lttng_rotation_schedule *periodic = NULL, *size = NULL;
struct lttng_rotation_schedules *schedules = NULL;
struct lttng_rotation_schedule *periodic = NULL, *size = NULL;
+ if (!session_name) {
+ ret = -LTTNG_ERR_INVALID;
+ goto end;
+ }
+
memset(&lsm, 0, sizeof(lsm));
lsm.cmd_type = LTTNG_SESSION_LIST_ROTATION_SCHEDULES;
memset(&lsm, 0, sizeof(lsm));
lsm.cmd_type = LTTNG_SESSION_LIST_ROTATION_SCHEDULES;
-
lttng_ctl_copy_string
(lsm.session.name, session_name,
+
ret = lttng_strncpy
(lsm.session.name, session_name,
sizeof(lsm.session.name));
sizeof(lsm.session.name));
+ if (ret) {
+ ret = -LTTNG_ERR_INVALID;
+ goto end;
+ }
ret = lttng_ctl_ask_sessiond(&lsm, (void **) &schedules_comm);
if (ret < 0) {
ret = lttng_ctl_ask_sessiond(&lsm, (void **) &schedules_comm);
if (ret < 0) {
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