51 lines
942 B
C
51 lines
942 B
C
/* Copyright (C) Charles Forsyth
|
|
* See /doc/license/NOTICE.Plan9-9k.txt for details about the licensing.
|
|
*/
|
|
/* Portions of this file are Copyright (C) 2015-2018 Giacomo Tesio <giacomo@tesio.it>
|
|
* See /doc/license/gpl-2.0.txt for details about the licensing.
|
|
*/
|
|
|
|
#include <u.h>
|
|
#include <libc.h>
|
|
#include "../boot/boot.h"
|
|
|
|
void
|
|
getpasswd(char *p, int len)
|
|
{
|
|
char c;
|
|
int i, n, fd;
|
|
|
|
fd = open("#c/consctl", OWRITE);
|
|
if(fd < 0)
|
|
fatal("can't open consctl; please reboot");
|
|
write(fd, "rawon", 5);
|
|
Prompt:
|
|
jehanne_print("password: ");
|
|
n = 0;
|
|
for(;;){
|
|
do{
|
|
i = read(0, &c, 1);
|
|
if(i < 0)
|
|
fatal("can't read cons; please reboot");
|
|
}while(i == 0);
|
|
switch(c){
|
|
case '\n':
|
|
p[n] = '\0';
|
|
close(fd);
|
|
jehanne_print("\n");
|
|
return;
|
|
case '\b':
|
|
if(n > 0)
|
|
n--;
|
|
break;
|
|
case 'u' - 'a' + 1: /* cntrl-u */
|
|
jehanne_print("\n");
|
|
goto Prompt;
|
|
default:
|
|
if(n < len - 1)
|
|
p[n++] = c;
|
|
break;
|
|
}
|
|
}
|
|
}
|