1 #include <u.h>
2 #include <libc.h>
3 #include <../boot/boot.h>
4
5 static char *paqfile;
6
7 void
configembed(Method * m)8 configembed(Method *m)
9 {
10 if(*sys == '/' || *sys == '#'){
11 /*
12 * if the user specifies the disk in the boot cmd or
13 * 'root is from' prompt, use it
14 */
15 paqfile = sys;
16 } else if(m->arg){
17 /*
18 * a default is supplied when the kernel is made
19 */
20 paqfile = m->arg;
21 }
22 }
23
24 int
connectembed(void)25 connectembed(void)
26 {
27 int i, p[2];
28 Dir *dir;
29 char **arg, **argp;
30
31 dir = dirstat("/boot/paqfs");
32 if(dir == nil)
33 return -1;
34 free(dir);
35
36 dir = dirstat(paqfile);
37 if(dir == nil || dir->mode & DMDIR)
38 return -1;
39 free(dir);
40
41 print("paqfs...");
42 if(bind("#c", "/dev", MREPL) < 0)
43 fatal("bind #c");
44 if(bind("#p", "/proc", MREPL) < 0)
45 fatal("bind #p");
46 if(pipe(p)<0)
47 fatal("pipe");
48 switch(fork()){
49 case -1:
50 fatal("fork");
51 case 0:
52 arg = malloc((bargc+5)*sizeof(char*));
53 argp = arg;
54 *argp++ = "/boot/paqfs";
55 *argp++ = "-iv";
56 *argp++ = paqfile;
57 for(i=1; i<bargc; i++)
58 *argp++ = bargv[i];
59 *argp = 0;
60
61 dup(p[0], 0);
62 dup(p[1], 1);
63 close(p[0]);
64 close(p[1]);
65 exec("/boot/paqfs", arg);
66 fatal("can't exec paqfs");
67 default:
68 break;
69 }
70 waitpid();
71
72 close(p[1]);
73 return p[0];
74 }
75