/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #include <u.h>#include <libc.h>#include <../boot/boot.h> static char *paqfile; voidconfigembed(Method *m){	if(*sys == '/' || *sys == '#'){		/*		 *  if the user specifies the disk in the boot cmd or		 * 'root is from' prompt, use it		 */		paqfile = sys;	} else if(m->arg){		/*		 *  a default is supplied when the kernel is made		 */		paqfile = m->arg;	}} intconnectembed(void){	int i, p[2];	Dir *dir;	char **arg, **argp; 	dir = dirstat("/boot/paqfs");	if(dir == nil)		return -1;	free(dir); 	dir = dirstat(paqfile);	if(dir == nil || dir->mode & DMDIR)		return -1;	free(dir); 	print("paqfs...");	if(bind("#c", "/dev", MREPL) < 0)		fatal("bind #c");	if(bind("#p", "/proc", MREPL) < 0)		fatal("bind #p");	if(pipe(p)<0)		fatal("pipe");	switch(fork()){	case -1:		fatal("fork");	case 0:		arg = malloc((bargc+5)*sizeof(char*));		argp = arg;		*argp++ = "/boot/paqfs";		*argp++ = "-iv";		*argp++ = paqfile;		for(i=1; i<bargc; i++)			*argp++ = bargv[i];		*argp = 0; 		dup(p[0], 0);		dup(p[1], 1);		close(p[0]);		close(p[1]);		exec("/boot/paqfs", arg);		fatal("can't exec paqfs");	default:		break;	}	waitpid(); 	close(p[1]);	return p[0];}