DWHexPairs.c

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/*
 *  Copyright (C) 2023 Swansea University
 *
 *  This file is part of the SELKIELogger suite of tools.
 *
 *  SELKIELogger 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.
 *
 *  SELKIELogger 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 this SELKIELogger product.
 *  If not, see <http://www.gnu.org/licenses/>.
*/
 
#include <stdbool.h>
#include <stddef.h>
#include <stdio.h>
 
#include "DWTypes.h"
 
bool test(const char *in, const uint8_t target);
 
int main(void) {
    const char *ts1 = "00";
    const char *ts2 = "01";
    const char *ts3 = "0a";
    const char *ts4 = "0A";
    const char *ts5 = "10";
    const char *ts6 = "ff";
    const char *ts7 = "FF";
 
    bool res = true;
 
    res &= test(ts1, 0);
    res &= test(ts2, 1);
    res &= test(ts3, 10);
    res &= test(ts4, 10);
    res &= test(ts5, 16);
    res &= test(ts6, 255);
    res &= test(ts7, 255);
 
    return (res ? 0 : 1);
}
 
bool test(const char *in, const uint8_t target) {
    uint8_t val = 0;
    bool res = hexpair_to_uint(in, &val);
    if (!res) {
        // LCOV_EXCL_START
        fprintf(stderr, "Conversion of '%c%c' failed\n", in[0], in[1]);
        return false;
        // LCOV_EXCL_STOP
    }
 
    if (val == target) {
        fprintf(stdout, "Conversion of '%c%c' successfully yielded %d\n", in[0], in[1],
                target);
        return true;
    }
    // LCOV_EXCL_START
    fprintf(stdout, "Conversion of '%c%c' failed (returned %d, not %d)\n", in[0], in[1], val,
            target);
    return false;
    // LCOV_EXCL_STOP
}