cmd/oidcalc/oidcalc.c
author Franziskus Kiefer <franziskuskiefer@gmail.com>
Thu, 07 Sep 2017 10:39:06 +0200
changeset 13570 d839b28bc4fee96b48cace984dad4d137d802c01
parent 12092 e812f2193f12db8ffee2f3a5f0bb407d4e73a682
permissions -rw-r--r--
Bug 1397630 - fix blake2b coverity issue, r=ttaubert Bug #: 1397630 Differential Revision: https://phabricator.services.mozilla.com/D36

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int
main(int argc, char **argv)
{
    char *curstr;
    char *nextstr;
    unsigned int firstval;
    unsigned int secondval;
    unsigned int val;
    unsigned char buf[5];
    int count;

    if (argc != 2) {
        fprintf(stderr, "wrong number of args\n");
        exit(-1);
    }

    curstr = argv[1];

    nextstr = strchr(curstr, '.');

    if (nextstr == NULL) {
        fprintf(stderr, "only one component\n");
        exit(-1);
    }

    *nextstr = '\0';
    firstval = atoi(curstr);

    curstr = nextstr + 1;

    nextstr = strchr(curstr, '.');

    if (nextstr) {
        *nextstr = '\0';
    }

    secondval = atoi(curstr);

    if (firstval > 2) {
        fprintf(stderr, "first component out of range\n");
        exit(-1);
    }

    if (secondval > 39) {
        fprintf(stderr, "second component out of range\n");
        exit(-1);
    }

    printf("0x%x, ", (firstval * 40) + secondval);
    while (nextstr) {
        curstr = nextstr + 1;

        nextstr = strchr(curstr, '.');

        if (nextstr) {
            *nextstr = '\0';
        }

        memset(buf, 0, sizeof(buf));
        val = atoi(curstr);
        count = 0;
        while (val) {
            buf[count] = (val & 0x7f);
            val = val >> 7;
            count++;
        }

        while (count--) {
            if (count) {
                printf("0x%x, ", buf[count] | 0x80);
            } else {
                printf("0x%x, ", buf[count]);
            }
        }
    }
    printf("\n");
    return 0;
}