#include <u.h>#include <libc.h>#include <auth.h>#include <fcall.h>#include <thread.h>#include <9p.h>#include "flashfs.h" extern int	chatty9p; static voidusage(void){	fprint(2, "usage: %s [-rD] [-n nsect] [-z sectsize] [-m mount] [-f file]\n", argv0);	exits("usage");} static ulongargval(char *arg){	long v;	char *extra; 	if(arg == nil)		usage();	v = strtol(arg, &extra, 0);	if(*extra || v <= 0)		usage();	return v;} voidmain(int argc, char **argv){	int ro;	char *file, *mount; 	mount = "/n/brzr";	ro = 0;	file = "/dev/flash/fs"; 	ARGBEGIN {	case 'D':		chatty9p++;		break;	case 'r':		ro++;		break;	case 'n':		nsects = argval(ARGF());		break;	case 'z':		sectsize = argval(ARGF());		break;	case 'f':		file = ARGF();		break;	case 'm':		mount = ARGF();		break;	default:		usage();	} ARGEND 	if(argc != 0)		usage(); 	initdata(file, 0);	sectbuff = emalloc9p(sectsize);	einit();	loadfs(ro);	serve(mount);	exits(nil);}