#include <fcall.h>

#include <u.h>
#include <libc.h>
#include <fcall.h>
#include <thread.h>
#include <9p.h>
#include <auth.h>

static void
postproc(void *v)
{
Srv *s;

s = v;
rendezvous(0, 0);
close(s->srvfd);
srv(s);
}

static void
postsrv(Srv *s, char *name)
{
char buf[80];
int fd[2];
int cfd;

if(pipe(fd) < 0)
sysfatal("pipe: %r");
s->infd = s->outfd = fd[1];
s->srvfd = fd[0];

if(name != nil){
snprint(buf, sizeof buf, "/srv/%s", name);
if((cfd = create(buf, OWRITE|ORCLOSE|OCEXEC, 0600)) < 0)
sysfatal("create %s: %r", buf);
if(fprint(cfd, "%d", s->srvfd) < 0)
sysfatal("write %s: %r", buf);
} else
cfd = -1;

if(_forker == nil)
sysfatal("no forker");
_forker(postproc, s, RFNAMEG|RFNOTEG);

rfork(RFFDG);
rendezvous(0, 0);

close(s->infd);
if(s->infd != s->outfd)
close(s->outfd);

if(cfd >= 0)
close(cfd);
}

void
_postmountsrv(Srv *s, char *name, char *mtpt, int flag)
{
postsrv(s, name);

if(mtpt != nil){
if(amount(s->srvfd, mtpt, flag, "") == -1)
sysfatal("mount %s: %r", mtpt);
/* mount closed s->srvfd */
} else
close(s->srvfd);
}

void
_postsharesrv(Srv *s, char *name, char *mtpt, char *desc)
{
char buf[80];
int cfd;

if(mtpt != nil && desc != nil){
snprint(buf, sizeof buf, "#σc/%s", mtpt);
if((cfd = create(buf, OREAD, DMDIR|0700)) >= 0)
close(cfd);

snprint(buf, sizeof buf, "#σc/%s/%s", mtpt, desc);
if((cfd = create(buf, OWRITE|ORCLOSE|OCEXEC, 0600)) < 0)
sysfatal("create %s: %r", buf);
} else
cfd = -1;

postsrv(s, name);

if(cfd >= 0){
if(fprint(cfd, "%d\n", s->srvfd) < 0)
sysfatal("write %s: %r", buf);
close(cfd);
}
close(s->srvfd);
}