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devshr: honor noattach

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This commit is contained in:
cinap_lenrek 2012-09-06 01:05:37 +02:00
parent 577a9f763f
commit 9c18f300a4
1 changed files with 6 additions and 0 deletions
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6
sys/src/9/port/devshr.c
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@ -458,6 +458,8 @@ shrcreate(Chan *c, char *name, int omode, ulong perm)
cclose(c);
return nc;
case Qcroot:
if(up->pgrp->noattach)
error(Enoattach);
if((perm & DMDIR) == 0 || openmode(omode) != OREAD)
error(Eperm);
if(strlen(name) >= sizeof(up->genbuf))
@ -490,6 +492,8 @@ shrcreate(Chan *c, char *name, int omode, ulong perm)
sch->shr = shr;
break;
case Qcshr:
if(up->pgrp->noattach)
error(Enoattach);
if((perm & DMDIR) || openmode(omode) != OWRITE)
error(Eperm);
@ -720,6 +724,8 @@ shrwrite(Chan *c, void *va, long n, vlong)
int flags;
}bogus;
if(up->pgrp->noattach)
error(Enoattach);
sch = tosch(c);
if(sch->level != Qcmpt)
error(Egreg);