AP_InertialSensor: Specify the number of arrays by sizeof

muramura · Jan 3, 2024 · 9b50f26 · 9b50f26
1 parent 68d8a26
commit 9b50f26
Showing 1 changed file with 4 additions and 4 deletions.
diff --git a/libraries/AP_InertialSensor/AP_InertialSensor_SITL.cpp b/libraries/AP_InertialSensor/AP_InertialSensor_SITL.cpp
@@ -409,7 +409,7 @@ void AP_InertialSensor_SITL::read_gyro_from_file()
 {
  if (gyro_fd == -1) {
  char namebuf[32];
- snprintf(namebuf, 32, "/tmp/gyro%d.dat", gyro_instance);
+ snprintf(namebuf, sizeof(namebuf), "/tmp/gyro%d.dat", gyro_instance);
  gyro_fd = AP::FS().open(namebuf, O_RDONLY);
  if (gyro_fd == -1) {
  AP_HAL::panic("gyro data file %s not found", namebuf);
@@ -462,7 +462,7 @@ void AP_InertialSensor_SITL::write_gyro_to_file(const Vector3f& gyro)
 {
  if (gyro_fd == -1) {
  char namebuf[32];
- snprintf(namebuf, 32, "/tmp/gyro%d.dat", gyro_instance);
+ snprintf(namebuf, sizeof(namebuf), "/tmp/gyro%d.dat", gyro_instance);
  gyro_fd = open(namebuf, O_WRONLY|O_TRUNC|O_CREAT, S_IRWXU|S_IRGRP|S_IROTH);
  }
 
@@ -477,7 +477,7 @@ void AP_InertialSensor_SITL::read_accel_from_file()
 {
  if (accel_fd == -1) {
  char namebuf[32];
- snprintf(namebuf, 32, "/tmp/accel%d.dat", accel_instance);
+ snprintf(namebuf, sizeof(namebuf), "/tmp/accel%d.dat", accel_instance);
  accel_fd = open(namebuf, O_RDONLY|O_CLOEXEC);
  if (accel_fd == -1) {
  AP_HAL::panic("accel data file %s not found", namebuf);
@@ -534,7 +534,7 @@ void AP_InertialSensor_SITL::write_accel_to_file(const Vector3f& accel)
 
  if (accel_fd == -1) {
  char namebuf[32];
- snprintf(namebuf, 32, "/tmp/accel%d.dat", accel_instance);
+ snprintf(namebuf, sizeof(namebuf), "/tmp/accel%d.dat", accel_instance);
  accel_fd = open(namebuf, O_WRONLY|O_TRUNC|O_CREAT, S_IRWXU|S_IRGRP|S_IROTH);
  }