- sprintf(filename,"%s/snap_%04d%02d%02d-%02d%02d%02d.%s",
- preferences->snapshot_path, 1900+tm.tm_year,tm.tm_mon,tm.tm_mday,
+ snprintf(filename,sizeof(filename),"%s/snap_%04d%02d%02d-%02d%02d%02d.%s",
+ preferences->snapshot_path, 1900+tm.tm_year,1+tm.tm_mon,tm.tm_mday,