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#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:
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);
print("\n");
return;
case '\b':
if(n > 0)
n--;
break;
case 'u' - 'a' + 1: /* cntrl-u */
print("\n");
goto Prompt;
default:
if(n < len - 1)
p[n++] = c;
break;
}
}
}
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