make sure there is room for nul byte

Jan Willamowius

2019-04-22 56eba164bd725d7f2b3a0f7df9d165e84cb7fe10

 src/library/os/os-linux.c

@@ -109,7 +109,7 @@
            if (drive_found == -1) {
               LOG_DEBUG("mntent: %s %s %d\n", ent->mnt_fsname, ent->mnt_dir,
                     (unsigned long int)mount_stat.st_ino);
               strcpy(tmpDrives[currentDrive].device, ent->mnt_fsname);
               strncpy(tmpDrives[currentDrive].device, ent->mnt_fsname, 255-1);
               statDrives[currentDrive] = mount_stat.st_ino;
               drive_found = currentDrive;
               currentDrive++;
@@ -169,7 +169,7 @@
            if (stat(cur_dir, &sym_stat) == 0) {
               for (i = 0; i < currentDrive; i++) {
                  if (sym_stat.st_ino == statDrives[i]) {
                     strncpy(tmpDrives[i].label, dir->d_name, 255);
                     strncpy(tmpDrives[i].label, dir->d_name, 255-1);
                     printf("label %d %s %s\n", i, tmpDrives[i].label,
                           tmpDrives[i].device);
                  }
@@ -290,7 +290,7 @@
   strcat(proc_path, pidStr);
   strcat(proc_path, "/exe");

   int ch = readlink(proc_path, path, MAX_PATH);
   int ch = readlink(proc_path, path, MAX_PATH-1);
   if (ch != -1) {
      path[ch] = '\0';
      strncpy(buffer, path, ch);