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72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
/*
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* tio - a simple serial terminal I/O tool
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*
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* Copyright (c) 2014-2022 Martin Lund
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <time.h>
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#include <errno.h>
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#include "error.h"
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#include "print.h"
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#include "options.h"
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void delay(long ms)
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{
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struct timespec ts;
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if (ms <= 0)
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{
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return;
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}
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ts.tv_sec = ms / 1000;
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ts.tv_nsec = (ms % 1000) * 1000000;
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nanosleep(&ts, NULL);
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}
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long string_to_long(char *string)
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{
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long result;
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char *end_token;
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errno = 0;
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result = strtol(string, &end_token, 10);
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if ((errno != 0) || (*end_token != 0))
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{
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printf("Error: Invalid digit\n");
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exit(EXIT_FAILURE);
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}
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return result;
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}
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int ctrl_key_code(unsigned char key)
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{
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if ((key >= 'a') && (key <= 'z'))
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{
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return key & ~0x60;
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}
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return -1;
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}
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