crypt.cc

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#if !(defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__))
#include <crypt.h>
#endif
#include <stdlib.h>
#include <time.h>
#include <unistd.h>

#include <string>

char getsaltchar()
{
        int r = (int) (64.0 * rand() / (RAND_MAX + 1.0));
        if (r < 26)
                return 'a' + r;
        r -= 26;
        if (r < 26)
                return 'A' + r;
        r -= 26;
        if (r < 10)
                return '0' + r;
        if (r < 1)
                return '.';
        else
                return '/';
}

int main(int argc, char *argv[])
{
        char salt[2];
        int i;

        if (argc != 2 || string(argv[1]) == "-?") {
                cerr << "Usage: " << argv[0] << " passwd" << endl;
                exit(1);
        }

        srand(time(NULL));
        salt[0] = getsaltchar();
        salt[1] = getsaltchar();

        cout << "crypt: " << crypt(argv[1], salt) << endl;
}

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