#include "apue.h"

 #include <fcntl.h>

 int main(int argc,char **argv)

 {

     if(argc != )

         err_quit("usage:a.out <pathname>");

     if(access(argv[],R_OK) < )

         err_ret("access error for %s",argv[]);

     else

         printf("read access OK\n");

     if(open(argv[],O_RDONLY)<)

         err_ret("open error for %s\r\n",argv[]);

     else

         printf("open for reading OK\r\n");

     exit();

     return ;

 }

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