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i237/src/print_helper.c

52 lines
1.5 KiB
C

/* Copyright (C) 2016 Arti Zirk <arti.zirk@gmail.com>
*
* This file is part of I237 Door Access program.
*
* I237 Door Access is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* I237 Door Access is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with I237 Door Access. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <avr/pgmspace.h>
#include "print_helper.h"
int print_ascii_tbl (FILE *stream)
{
for (char c = ' '; c <= '~'; c++) {
if (!fprintf(stream, "%c ", c)) {
return 0;
}
}
return fprintf(stream, "\n");
}
int print_for_human (FILE *stream, const unsigned char *array, const int len)
{
for (int i = 0; i < len; i++) {
unsigned char c = array[i];
if (c >= ' ' && c <= '~') {
if (!fprintf(stream, "%c", c)) {
return 0;
}
} else {
if (!fprintf(stream, "\"0x%02x\"", c)) {
return 0;
}
}
}
return fprintf(stream, "\n");
}