C file handling program to check a given filename is a directory or not

\* C file handling program to check a given filename is a directory or not *\

# include < stdio.h >
# include < sys/types.h >
# include < sys/stat.h >
# include < unistd.h >
int   isDir( const char* fileName )
{

struct stat path ;
stat( fileName, &path ) ;
return S_ISREG( path.st_mode ) ;

}

int   main( )
{

char fileName[16] ;
int ret = 0 ;
printf("\n Enter filename: ") ;
scanf("%s", fileName ) ;
ret = isDir( fileName ) ;
if (ret == 0)
      printf(" Given file is a directory\n") ;
else
      printf(" Given file is not a directory\n") ;
return 0 ;

}