heimdal/kadmin/add-random-users.c

/*
 * Copyright (c) 2000 Kungliga Tekniska Högskolan
 * (Royal Institute of Technology, Stockholm, Sweden). 
 * All rights reserved. 
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions 
 * are met: 
 *
 * 1. Redistributions of source code must retain the above copyright 
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright 
 *    notice, this list of conditions and the following disclaimer in the 
 *    documentation and/or other materials provided with the distribution. 
 *
 * 3. Neither the name of the Institute nor the names of its contributors 
 *    may be used to endorse or promote products derived from this software 
 *    without specific prior written permission. 
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
 * SUCH DAMAGE. 
 */

#include "kadmin_locl.h"

RCSID("$Id$");

#define WORDS_FILENAME "/usr/share/dict/words"

#define NUSERS 1000

static unsigned
read_words (const char *filename, char ***ret_w)
{
    unsigned n, alloc;
    FILE *f;
    char buf[256];
    char **w = NULL;

    f = fopen (filename, "r");
    if (f == NULL)
	err (1, "cannot open %s", filename);
    alloc = n = 0;
    while (fgets (buf, sizeof(buf), f) != NULL) {
	if (buf[strlen (buf) - 1] == '\n')
	    buf[strlen (buf) - 1] = '\0';
	if (n >= alloc) {
	    alloc += 16;
	    w = erealloc (w, alloc * sizeof(char **));
	}
	w[n++] = estrdup (buf);
    }
    *ret_w = w;
    return n;
}

static void
add_user (krb5_context context, void *kadm_handle,
	  unsigned nwords, char **words)
{
    kadm5_principal_ent_rec princ;
    char name[64];
    int r1, r2;
    krb5_error_code ret;
    int mask;

    r1 = rand();
    r2 = rand();

    snprintf (name, sizeof(name), "%s%d", words[r1 % nwords], r2 % 1000);

    mask = KADM5_PRINCIPAL;

    memset(&princ, 0, sizeof(princ));
    ret = krb5_parse_name(context, name, &princ.principal);
    if (ret)
	krb5_err(context, 1, ret, "krb5_parse_name");

    ret = kadm5_create_principal (kadm_handle, &princ, mask, name);
    if (ret)
	krb5_err (context, 1, ret, "kadm5_create_principal");
    kadm5_free_principal_ent(kadm_handle, &princ);
    printf ("%s\n", name);
}

static void
add_users (unsigned n)
{
    krb5_error_code ret;
    int i;
    void *kadm_handle;
    krb5_context context;
    unsigned nwords;
    char **words;

    krb5_init_context(&context);
    ret = kadm5_s_init_with_password_ctx(context, 
					 KADM5_ADMIN_SERVICE,
					 NULL,
					 KADM5_ADMIN_SERVICE,
					 NULL, 0, 0, 
					 &kadm_handle);
    if(ret)
	krb5_err(context, 1, ret, "kadm5_init_with_password");

    nwords = read_words (WORDS_FILENAME, &words);
    
    for (i = 0; i < n; ++i)
	add_user (context, kadm_handle, nwords, words);
    kadm5_destroy(kadm_handle);
    krb5_free_context(context);
}

static int version_flag	= 0;
static int help_flag	= 0;

static struct getargs args[] = {
    { "version", 	0,   arg_flag, &version_flag },
    { "help",		0,   arg_flag, &help_flag }
};

static void
usage (int ret)
{
    arg_printusage (args,
		    sizeof(args)/sizeof(*args),
		    NULL,
		    NULL);
    exit (ret);
}

int
main(int argc, char **argv)
{
    int optind = 0;

    set_progname(argv[0]);
    if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optind))
	usage(1);
    if (help_flag)
	usage (0);
    srand (0);
    add_users (NUSERS);
    return 0;
}