Name
strtobool — 
     convert common user inputs into boolean values
 
Synopsis
int strtobool ( | const char * s,  | 
|   | bool * res); | 
 
Arguments
s
     input string
    
res
     result
    
Description
   This routine returns 0 iff the first character is one of 'Yy1Nn0'.
   Otherwise it will return -EINVAL.  Value pointed to by res is
   updated upon finding a match.