/*  * 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 <authsrv.h>#include <bio.h>#include "authcmdlib.h" voidgetpass(char *key, char *pass, int check, int confirm){	char rpass[32], npass[32];	char *err; 	if(pass == nil)		pass = npass; 	for(;;){		readln("Password: ", pass, sizeof npass, 1);		if(confirm){			readln("Confirm password: ", rpass, sizeof rpass, 1);			if(strcmp(pass, rpass) != 0){				print("mismatch, try again\n");				continue;			}		}		if(!passtokey(key, pass)){			print("bad password, try again\n");			continue;		}		if(check)			if(err = okpasswd(pass)){				print("%s, try again\n", err);				continue;			}		break;	}} intgetsecret(int passvalid, char *p9pass){	char answer[32]; 	readln("assign Inferno/POP secret? (y/n) ", answer, sizeof answer, 0);	if(*answer != 'y' && *answer != 'Y')		return 0; 	if(passvalid){		readln("make it the same as the plan 9 password? (y/n) ",			answer, sizeof answer, 0);		if(*answer == 'y' || *answer == 'Y')			return 1;	} 	for(;;){		readln("Secret(0 to 256 characters): ", p9pass,			sizeof answer, 1);		readln("Confirm: ", answer, sizeof answer, 1);		if(strcmp(p9pass, answer) == 0)			break;		print("mismatch, try again\n");	}	return 1;} voidreadln(char *prompt, char *line, int len, int raw){	char *p;	int fdin, fdout, ctl, n, nr; 	fdin = open("/dev/cons", OREAD);	fdout = open("/dev/cons", OWRITE);	fprint(fdout, "%s", prompt);	if(raw){		ctl = open("/dev/consctl", OWRITE);		if(ctl < 0)			error("couldn't set raw mode");		write(ctl, "rawon", 5);	} else		ctl = -1;	nr = 0;	p = line;	for(;;){		n = read(fdin, p, 1);		if(n < 0){			close(ctl);			error("can't read cons\n");		}		if(*p == 0x7f)			exits(0);		if(n == 0 || *p == '\n' || *p == '\r'){			*p = '\0';			if(raw){				write(ctl, "rawoff", 6);				write(fdout, "\n", 1);			}			close(ctl);			return;		}		if(*p == '\b'){			if(nr > 0){				nr--;				p--;			}		}else{			nr++;			p++;		}		if(nr == len){			fprint(fdout, "line too long; try again\n");			nr = 0;			p = line;		}	}}