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__init__.c
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41 lines (36 loc) · 1.13 KB
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// This file is part of the CircuitPython project: https://circuitpython.org
//
// SPDX-FileCopyrightText: Copyright (c) 2021 microDev
//
// SPDX-License-Identifier: MIT
#include "py/mphal.h"
#include "shared/readline/readline.h"
#include "shared-module/getpass/__init__.h"
mp_obj_t shared_module_getpass_getpass(const char *prompt, mp_print_t *print) {
vstr_t vstr;
vstr_init(&vstr, 16);
if (print == NULL) {
mp_hal_stdout_tx_str(prompt);
} else {
mp_printf(print, prompt);
}
for (;;) {
int c = mp_hal_stdin_rx_chr();
if (c == CHAR_CTRL_C) {
mp_raise_type(&mp_type_KeyboardInterrupt);
} else if (c == CHAR_CTRL_D && vstr.len == 0) {
mp_raise_type(&mp_type_EOFError);
} else if (c == 8 || c == 127) {
// backspace
vstr_cut_tail_bytes(&vstr, 1);
} else if (c >= 32) {
// printable character
vstr_ins_char(&vstr, vstr.len, c);
} else if (c == '\r') {
// newline
mp_hal_stdout_tx_str("\r\n");
break;
}
}
return mp_obj_new_str_from_vstr(&vstr);
}