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ask-password: use TAB instead of backspace to disable asterisk password echo

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This commit is contained in:
Lennart Poettering 2011-03-28 23:27:04 +02:00
parent d167623084
commit 58fc840b83
1 changed files with 32 additions and 14 deletions
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46
src/ask-password-api.c
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@ -36,6 +36,18 @@
#include "ask-password-api.h"
static void backspace_chars(int ttyfd, size_t p) {
if (ttyfd < 0)
return;
while (p > 0) {
p--;
loop_write(ttyfd, "\b \b", 3, false);
}
}
int ask_password_tty(
const char *message,
usec_t until,
@ -156,24 +168,30 @@ int ask_password_tty(
if (c == '\n')
break;
else if (c == 21) {
while (p > 0) {
p--;
else if (c == 21) { /* C-u */
if (ttyfd >= 0)
loop_write(ttyfd, "\b \b", 3, false);
}
if (!silent_mode)
backspace_chars(ttyfd, p);
p = 0;
} else if (c == '\b' || c == 127) {
if (p == 0 && !silent_mode) {
silent_mode = true;
loop_write(ttyfd, "(no echo) ", 10, false);
} else if (p > 0) {
p--;
if (ttyfd >= 0)
loop_write(ttyfd, "\b \b", 3, false);
}
if (p > 0) {
if (!silent_mode)
backspace_chars(ttyfd, 1);
p--;
} else if (ttyfd >= 0)
loop_write(ttyfd, "\a", 1, false);
} else if (c == '\t' && !silent_mode) {
backspace_chars(ttyfd, p);
silent_mode = true;
if (ttyfd >= 0)
loop_write(ttyfd, "(no echo) ", 10, false);
} else {
passphrase[p++] = c;