void
cpumain(int argc, char **argv)
{
char dat[MaxStr], buf[MaxStr], cmd[MaxStr], *err, *secstoreserver, *p, *s;
int fd, ms, data;
/* see if we should use a larger message size */
fd = open("/dev/draw", OREAD);
if(fd > 0){
ms = iounit(fd);
if(msgsize < ms+IOHDRSZ)
msgsize = ms+IOHDRSZ;
close(fd);
}
user = getenv("USER");
secstoreserver = nil;
authserver = getenv("auth");
if(authserver == nil)
authserver = "p9auth.cs.bell-labs.com";
system = getenv("cpu");
if(system == nil)
system = "plan9.bell-labs.com";
ARGBEGIN{
case 'a':
authserver = EARGF(usage());
break;
case 'c':
system = EARGF(usage());
break;
case 'd':
dbg++;
break;
case 'e':
ealgs = EARGF(usage());
if(*ealgs == 0 || strcmp(ealgs, "clear") == 0)
ealgs = nil;
break;
case 'C':
cflag++;
cmd[0] = '!';
cmd[1] = '\0';
while((p = ARGF()) != nil) {
strcat(cmd, " ");
strcat(cmd, p);
}
break;
case 'k':
keyspec = EARGF(usage());
break;
case 'r':
base = EARGF(usage());
break;
case 's':
secstoreserver = EARGF(usage());
break;
case 'u':
user = EARGF(usage());
break;
default:
usage();
}ARGEND;
if(argc != 0)
usage();
if(user == nil)
user = readcons("user", nil, 0);
if(mountfactotum() < 0){
if(secstoreserver == nil)
secstoreserver = authserver;
if(havesecstore(secstoreserver, user)){
s = secstorefetch(secstoreserver, user, nil);
if(s){
if(strlen(s) >= sizeof secstorebuf)
sysfatal("secstore data too big");
strcpy(secstorebuf, s);
}
}
}
if((err = rexcall(&data, system, srvname)))
fatal(1, "%s: %s", err, system);
/* Tell the remote side the command to execute and where our working directory is */
if(cflag)
writestr(data, cmd, "command", 0);
if(getcwd(dat, sizeof(dat)) == 0)
writestr(data, "NO", "dir", 0);
else
writestr(data, dat, "dir", 0);
/*
* Wait for the other end to execute and start our file service
* of /mnt/term
*/
if(readstr(data, buf, sizeof(buf)) < 0)
fatal(1, "waiting for FS: %r");
if(strncmp("FS", buf, 2) != 0) {
print("remote cpu: %s", buf);
exits(buf);
}
if(readstr(data, buf, sizeof buf) < 0)
fatal(1, "waiting for remote export: %r");
if(strcmp(buf, "/") != 0){
print("remote cpu: %s" , buf);
exits(buf);
}
write(data, "OK", 2);
/* Begin serving the gnot namespace */
exportfs(data, msgsize);
fatal(1, "starting exportfs");
}
Display*
initdisplay(char *dev, char *win, void(*error)(Display*, char*))
{
char buf[128], info[NINFO+1], *t, isnew;
int n, datafd, ctlfd, reffd;
Display *disp;
Dir *dir;
Image *image;
fmtinstall('P', Pfmt);
fmtinstall('R', Rfmt);
if(dev == 0)
dev = "/dev";
if(win == 0)
win = "/dev";
if(strlen(dev)>sizeof buf-25 || strlen(win)>sizeof buf-25){
werrstr("initdisplay: directory name too long");
return nil;
}
t = strdup(win);
if(t == nil)
return nil;
sprint(buf, "%s/draw/new", dev);
ctlfd = open(buf, ORDWR|OCEXEC);
if(ctlfd < 0){
if(bind("#i", dev, MAFTER) < 0){
Error1:
free(t);
werrstr("initdisplay: %s: %r", buf);
return 0;
}
ctlfd = open(buf, ORDWR|OCEXEC);
}
if(ctlfd < 0)
goto Error1;
if((n=read(ctlfd, info, sizeof info)) < 12){
Error2:
close(ctlfd);
goto Error1;
}
if(n==NINFO+1)
n = NINFO;
info[n] = '\0';
isnew = 0;
if(n < NINFO) /* this will do for now, we need something better here */
isnew = 1;
sprint(buf, "%s/draw/%d/data", dev, atoi(info+0*12));
datafd = open(buf, ORDWR|OCEXEC);
if(datafd < 0)
goto Error2;
sprint(buf, "%s/draw/%d/refresh", dev, atoi(info+0*12));
reffd = open(buf, OREAD|OCEXEC);
if(reffd < 0){
Error3:
close(datafd);
goto Error2;
}
disp = mallocz(sizeof(Display), 1);
if(disp == 0){
Error4:
close(reffd);
goto Error3;
}
image = nil;
if(0){
Error5:
free(image);
free(disp);
goto Error4;
}
if(n >= NINFO){
image = mallocz(sizeof(Image), 1);
if(image == nil)
goto Error5;
image->display = disp;
image->id = 0;
image->chan = strtochan(info+2*12);
image->depth = chantodepth(image->chan);
image->repl = atoi(info+3*12);
image->r.min.x = atoi(info+4*12);
image->r.min.y = atoi(info+5*12);
image->r.max.x = atoi(info+6*12);
image->r.max.y = atoi(info+7*12);
image->clipr.min.x = atoi(info+8*12);
image->clipr.min.y = atoi(info+9*12);
image->clipr.max.x = atoi(info+10*12);
image->clipr.max.y = atoi(info+11*12);
}
disp->_isnewdisplay = isnew;
disp->bufsize = iounit(datafd);
if(disp->bufsize <= 0)
disp->bufsize = 8000;
if(disp->bufsize < 512){
werrstr("iounit %d too small", disp->bufsize);
goto Error5;
}
disp->buf = malloc(disp->bufsize+5); /* +5 for flush message */
if(disp->buf == nil)
goto Error5;
disp->image = image;
disp->dirno = atoi(info+0*12);
disp->fd = datafd;
disp->ctlfd = ctlfd;
disp->reffd = reffd;
disp->bufp = disp->buf;
disp->error = error;
disp->windir = t;
disp->devdir = strdup(dev);
qlock(&disp->qlock);
disp->white = allocimage(disp, Rect(0, 0, 1, 1), GREY1, 1, DWhite);
disp->black = allocimage(disp, Rect(0, 0, 1, 1), GREY1, 1, DBlack);
if(disp->white == nil || disp->black == nil){
free(disp->devdir);
free(disp->white);
free(disp->black);
goto Error5;
}
disp->opaque = disp->white;
disp->transparent = disp->black;
dir = dirfstat(ctlfd);
if(dir!=nil && dir->type=='i'){
disp->local = 1;
disp->dataqid = dir->qid.path;
}
if(dir!=nil && dir->qid.vers==1) /* other way to tell */
disp->_isnewdisplay = 1;
free(dir);
return disp;
}
void
main(int argc, char **argv)
{
char dat[MaxStr], buf[MaxStr], cmd[MaxStr], *p, *err;
int ac, fd, ms, data;
char *av[10];
quotefmtinstall();
origargs = procgetname();
/* see if we should use a larger message size */
fd = open("/dev/draw", OREAD);
if(fd > 0){
ms = iounit(fd);
if(msgsize < ms+IOHDRSZ)
msgsize = ms+IOHDRSZ;
close(fd);
}
user = getuser();
if(user == nil)
fatal(1, "can't read user name");
ARGBEGIN{
case 'a':
p = EARGF(usage());
if(setam(p) < 0)
fatal(0, "unknown auth method %s", p);
break;
case 'e':
ealgs = EARGF(usage());
if(*ealgs == 0 || strcmp(ealgs, "clear") == 0)
ealgs = nil;
break;
case 'd':
dbg++;
break;
case 'f':
/* ignored but accepted for compatibility */
break;
case 'R': /* From listen */
remoteside();
break;
case 'h':
system = EARGF(usage());
break;
case 'c':
cflag++;
cmd[0] = '!';
cmd[1] = '\0';
while(p = ARGF()) {
strcat(cmd, " ");
strcat(cmd, p);
}
break;
case 'k':
keyspec = smprint("%s %s", keyspec, EARGF(usage()));
break;
case 'P':
patternfile = EARGF(usage());
break;
case 'u':
user = EARGF(usage());
keyspec = smprint("%s user=%s", keyspec, user);
break;
default:
usage();
}ARGEND;
if(argc != 0)
usage();
if(system == nil) {
p = getenv("cpu");
if(p == 0)
fatal(0, "set $cpu");
system = p;
}
if(err = rexcall(&data, system, srvname))
fatal(1, "%s: %s", err, system);
procsetname("%s", origargs);
/* Tell the remote side the command to execute and where our working directory is */
if(cflag)
writestr(data, cmd, "command", 0);
if(getwd(dat, sizeof(dat)) == 0)
writestr(data, "NO", "dir", 0);
else
writestr(data, dat, "dir", 0);
/* start up a process to pass along notes */
lclnoteproc(data);
/*
* Wait for the other end to execute and start our file service
* of /mnt/term
*/
if(readstr(data, buf, sizeof(buf)) < 0)
fatal(1, "waiting for FS: %r");
if(strncmp("FS", buf, 2) != 0) {
print("remote cpu: %s", buf);
exits(buf);
}
/* Begin serving the gnot namespace */
close(0);
dup(data, 0);
close(data);
sprint(buf, "%d", msgsize);
ac = 0;
av[ac++] = exportfs;
av[ac++] = "-m";
av[ac++] = buf;
if(dbg)
av[ac++] = "-d";
if(patternfile != nil){
av[ac++] = "-P";
av[ac++] = patternfile;
}
av[ac] = nil;
exec(exportfs, av);
fatal(1, "starting exportfs");
}
