1999/0122/port/devsrv.c (diff list | history)

1998/0319/sys/src/9/port/devsrv.c:63,68 – 1999/0122/sys/src/9/port/devsrv.c:63,78 (short | long | prev | next)
1991/0828		devstat(c, db, 0, 0, srvgen);
1990/0227		}
1999/0122		static Srv* srvlookup(char *name, ulong qidpath) { Srv *sp; for(sp = srv; sp; sp = sp->link) if(sp->path == qidpath || (name && strcmp(sp->name, name) == 0)) return sp; return nil; }
1997/0327		static Chan*
1990/0227		srvopen(Chan *c, int omode) {
1998/0319/sys/src/9/port/devsrv.c:69,74 – 1999/0122/sys/src/9/port/devsrv.c:79,86
1992/0622		Srv *sp;
1990/0227
1991/0828		if(c->qid.path == CHDIR){
1999/0122		if(omode & ORCLOSE) error(Eperm);
1990/1110		if(omode != OREAD)
1990/11211		error(Eisdir);
1990/0227		c->mode = omode;
1998/0319/sys/src/9/port/devsrv.c:82,97 – 1999/0122/sys/src/9/port/devsrv.c:94,106
1991/0828		nexterror(); }
1992/0622		for(sp = srv; sp; sp = sp->link) if(sp->path == c->qid.path) break;
1999/0122		sp = srvlookup(nil, c->qid.path);
1992/0622		if(sp == 0 || sp->chan == 0)
1990/11211		error(Eshutdown);
1992/0622
1991/0828		if(omode&OTRUNC)
1990/11211		error(Eperm);
1992/0622		if(omode!=sp->chan->mode && sp->chan->mode!=ORDWR)
1999/0122		if(openmode(omode)!=sp->chan->mode && sp->chan->mode!=ORDWR)
1990/11211		error(Eperm);
1992/0622
1997/0327		cclose(c);
1998/0319/sys/src/9/port/devsrv.c:106,114 – 1999/0122/sys/src/9/port/devsrv.c:115,126
1990/0227		{
1991/1219		Srv *sp;
1990/0227
1991/0828		if(omode != OWRITE)
1999/0122		if(openmode(omode) != OWRITE)
1991/0828		error(Eperm);
1991/1219
1999/0122		if(omode & OCEXEC) /* can't happen */ panic("someone broke namec");
1992/0622		sp = malloc(sizeof(Srv)); if(sp == 0) error(Enomem);
1998/0319/sys/src/9/port/devsrv.c:118,123 – 1999/0122/sys/src/9/port/devsrv.c:130,138
1992/0622		qunlock(&srvlk);
1990/0227		nexterror(); }
1999/0122		if(srvlookup(name, -1)) error(Eexist);
1993/0501		sp->path = qidpath++;
1992/0622		sp->link = srv; c->qid.path = sp->path;
1998/0319/sys/src/9/port/devsrv.c:174,183 – 1999/0122/sys/src/9/port/devsrv.c:189,196
1994/1018		Dir d; Srv *sp; if(!iseve())
1999/0122		if(c->qid.path & CHDIR)
1994/1018		error(Eperm); if(CHDIR & c->qid.path) error(Eperm); qlock(&srvlk); if(waserror()){
1998/0319/sys/src/9/port/devsrv.c:185,195 – 1999/0122/sys/src/9/port/devsrv.c:198,210
1994/1018		nexterror(); } for(sp = srv; sp; sp = sp->link) if(sp->path == c->qid.path) break; if(sp == 0 || sp->chan == 0) error(Eshutdown);
1999/0122		sp = srvlookup(nil, c->qid.path); if(sp == 0) error(Enonexist); if(strcmp(sp->owner, up->user) && !iseve()) error(Eperm);
1994/1018		convM2D(dp, &d); d.mode &= 0777; sp->perm = d.mode;
1998/0319/sys/src/9/port/devsrv.c:199,206 – 1999/0122/sys/src/9/port/devsrv.c:214,229
1990/0227		}
1997/0327		static void
1995/0804		srvclose(Chan*)
1999/0122		srvclose(Chan *c)
1990/0227		{
1999/0122		/* * errors from srvremove will be caught by cclose and ignored. * in theory we need to override any changes in removability * since open, but since all that's checked is the owner, * which is immutable, all is well. */ if(c->flag & CRCLOSE) srvremove(c);
1990/0227		}
1997/0327		static long
1998/0319/sys/src/9/port/devsrv.c:232,246 – 1999/0122/sys/src/9/port/devsrv.c:255,266
1997/0327		cclose(c1);
1992/0520		nexterror(); }
1992/0622		for(sp = srv; sp; sp = sp->link) if(sp->path == c->qid.path) break;
1992/0620
1999/0122		sp = srvlookup(nil, c->qid.path);
1992/0622		if(sp == 0) error(Enonexist); if(sp->chan) panic("srvwrite");
1999/0122		error(Ebadusefd);
1992/0622		sp->chan = c1; qunlock(&srvlk);