 
 
 
 
 
 
 
  
const char *cl_retdbdir(void); int cl_load(const char *path, struct cl_engine **engine, unsigned int *signo, unsigned int options);
cl_retdbdir returns the default (hardcoded) path to the directory
    with ClamAV databases.
    cl_load loads a single database file or all databases from a
    directory (if path points to a directory). The second argument
    is used for passing in the engine structure which should be previously
    initialized with NULL. A number of loaded signatures will be added
    to signo 7. The last argument can pass the following flags:
    
cl_load returns 0 (CL_SUCCESS) on success and a non-negative
    value on failure.
    ... struct cl_engine *engine = NULL; unsigned int sigs = 0; int ret; ret = cl_load(cl_retdbdir(), &engine, &sigs, CL_DB_STDOPT);