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