1 b3994ec5 2003-12-11 devnull #include <u.h>
 2 b3994ec5 2003-12-11 devnull #include <libc.h>
 3 b3994ec5 2003-12-11 devnull 
 4 118dfa98 2008-05-06 rsc int chattyfuse;
 5 118dfa98 2008-05-06 rsc 
 6 b3994ec5 2003-12-11 devnull int
 7 118dfa98 2008-05-06 rsc post9pservice(int fd, char *name, char *mtpt)
 8 b3994ec5 2003-12-11 devnull {
 9 118dfa98 2008-05-06 rsc 	int i, pid;
10 118dfa98 2008-05-06 rsc 	char *ns, *addr;
11 b3994ec5 2003-12-11 devnull 	Waitmsg *w;
12 b3994ec5 2003-12-11 devnull 
13 118dfa98 2008-05-06 rsc 	if(name == nil && mtpt == nil){
14 118dfa98 2008-05-06 rsc 		close(fd);
15 118dfa98 2008-05-06 rsc 		werrstr("nothing to do");
16 b3994ec5 2003-12-11 devnull 		return -1;
17 118dfa98 2008-05-06 rsc 	}
18 118dfa98 2008-05-06 rsc 
19 118dfa98 2008-05-06 rsc 	if(name){
20 118dfa98 2008-05-06 rsc 		if(strchr(name, '!'))	/* assume is already network address */
21 118dfa98 2008-05-06 rsc 			addr = strdup(name);
22 118dfa98 2008-05-06 rsc 		else{
23 118dfa98 2008-05-06 rsc 			if((ns = getns()) == nil)
24 118dfa98 2008-05-06 rsc 				return -1;
25 118dfa98 2008-05-06 rsc 			addr = smprint("unix!%s/%s", ns, name);
26 118dfa98 2008-05-06 rsc 			free(ns);
27 118dfa98 2008-05-06 rsc 		}
28 118dfa98 2008-05-06 rsc 		if(addr == nil)
29 005a85f3 2005-01-07 devnull 			return -1;
30 118dfa98 2008-05-06 rsc 		switch(pid = fork()){
31 118dfa98 2008-05-06 rsc 		case -1:
32 118dfa98 2008-05-06 rsc 			return -1;
33 118dfa98 2008-05-06 rsc 		case 0:
34 118dfa98 2008-05-06 rsc 			dup(fd, 0);
35 118dfa98 2008-05-06 rsc 			dup(fd, 1);
36 118dfa98 2008-05-06 rsc 			for(i=3; i<20; i++)
37 118dfa98 2008-05-06 rsc 				close(i);
38 118dfa98 2008-05-06 rsc 			execlp("9pserve", "9pserve", "-u", addr, (char*)0);
39 118dfa98 2008-05-06 rsc 			fprint(2, "exec 9pserve: %r\n");
40 118dfa98 2008-05-06 rsc 			_exits("exec");
41 118dfa98 2008-05-06 rsc 		}
42 b3994ec5 2003-12-11 devnull 		close(fd);
43 118dfa98 2008-05-06 rsc 		w = waitfor(pid);
44 118dfa98 2008-05-06 rsc 		if(w == nil)
45 118dfa98 2008-05-06 rsc 			return -1;
46 b3994ec5 2003-12-11 devnull 		if(w->msg && w->msg[0]){
47 b3994ec5 2003-12-11 devnull 			free(w);
48 b3994ec5 2003-12-11 devnull 			werrstr("9pserve failed");
49 b3994ec5 2003-12-11 devnull 			return -1;
50 b3994ec5 2003-12-11 devnull 		}
51 b3994ec5 2003-12-11 devnull 		free(w);
52 118dfa98 2008-05-06 rsc 		if(mtpt){
53 118dfa98 2008-05-06 rsc 			/* reopen */
54 118dfa98 2008-05-06 rsc 			if((fd = dial(addr, nil, nil, nil)) < 0){
55 118dfa98 2008-05-06 rsc 				werrstr("cannot reopen for mount: %r");
56 118dfa98 2008-05-06 rsc 				return -1;
57 118dfa98 2008-05-06 rsc 			}
58 118dfa98 2008-05-06 rsc 		}
59 118dfa98 2008-05-06 rsc 		free(addr);
60 b3994ec5 2003-12-11 devnull 	}
61 118dfa98 2008-05-06 rsc 	if(mtpt){
62 118dfa98 2008-05-06 rsc 		switch(pid = rfork(RFFDG|RFPROC|RFNOWAIT)){
63 118dfa98 2008-05-06 rsc 		case -1:
64 118dfa98 2008-05-06 rsc 			return -1;
65 118dfa98 2008-05-06 rsc 		case 0:
66 118dfa98 2008-05-06 rsc 			dup(fd, 0);
67 118dfa98 2008-05-06 rsc 			for(i=3; i<20; i++)
68 118dfa98 2008-05-06 rsc 				close(i);
69 3e4ceac7 2008-06-19 rsc 
70 3e4ceac7 2008-06-19 rsc 			/* Try v9fs on Linux, which will mount 9P directly. */
71 3e4ceac7 2008-06-19 rsc 			execlp("mount9p", "mount9p", "-", mtpt, (char*)0);
72 3e4ceac7 2008-06-19 rsc 
73 118dfa98 2008-05-06 rsc 			if(chattyfuse)
74 118dfa98 2008-05-06 rsc 				execlp("9pfuse", "9pfuse", "-D", "-", mtpt, (char*)0);
75 118dfa98 2008-05-06 rsc 			else
76 118dfa98 2008-05-06 rsc 				execlp("9pfuse", "9pfuse", "-", mtpt, (char*)0);
77 118dfa98 2008-05-06 rsc 			fprint(2, "exec 9pfuse: %r\n");
78 118dfa98 2008-05-06 rsc 			_exits("exec");
79 118dfa98 2008-05-06 rsc 		}
80 118dfa98 2008-05-06 rsc 		close(fd);
81 118dfa98 2008-05-06 rsc 	}
82 118dfa98 2008-05-06 rsc 	return 0;
83 b3994ec5 2003-12-11 devnull }