BSD 2 development

[unix-history] / misc / access.sys

--- This is a new line for sysent.c ---
       2, &saccess,                    /* 33 = access */
--- Also extern saccess at the beginning of sysent. ---
--- And this code should be placed at the end of sys2.c ---
/*
* access system call
*/
saccess()
{
       extern uchar;
       register svuid, svgid;
       register *ip;

       svuid = u.u_uid;
       svgid = u.u_gid;
       u.u_uid = u.u_ruid;
       u.u_gid = u.u_rgid;
       ip = namei(&uchar, 0);
       if (ip != NULL) {
               if (u.u_arg[1]&(IREAD>>6))
                       access(ip, IREAD);
               if (u.u_arg[1]&(IWRITE>>6))
                       access(ip, IWRITE);
               if (u.u_arg[1]&(IEXEC>>6))
                       access(ip, IEXEC);
               iput(ip);
       }
       u.u_uid = svuid;
       u.u_gid = svgid;
}
--- That should do it ---