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/*
* Copyright (c) 2000 - 2001 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 "kpasswd_locl.h"
RCSID("$Id: kpasswd-generator.c,v 1.5 2001/07/31 02:44:42 assar Exp $");
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 int
nop_prompter (krb5_context context,
void *data,
const char *name,
const char *banner,
int num_prompts,
krb5_prompt prompts[])
{
return 0;
}
static void
generate_requests (const char *filename, unsigned nreq)
{
krb5_context context;
krb5_error_code ret;
int i;
char **words;
unsigned nwords;
ret = krb5_init_context (&context);
if (ret)
errx (1, "krb5_init_context failed: %d", ret);
nwords = read_words (filename, &words);
for (i = 0; i < nreq; ++i) {
char *name = words[rand() % nwords];
krb5_get_init_creds_opt opt;
krb5_creds cred;
krb5_principal principal;
int result_code;
krb5_data result_code_string, result_string;
char *old_pwd, *new_pwd;
krb5_get_init_creds_opt_init (&opt);
krb5_get_init_creds_opt_set_tkt_life (&opt, 300);
krb5_get_init_creds_opt_set_forwardable (&opt, FALSE);
krb5_get_init_creds_opt_set_proxiable (&opt, FALSE);
ret = krb5_parse_name (context, name, &principal);
if (ret)
krb5_err (context, 1, ret, "krb5_parse_name %s", name);
asprintf (&old_pwd, "%s", name);
asprintf (&new_pwd, "%s2", name);
ret = krb5_get_init_creds_password (context,
&cred,
principal,
old_pwd,
nop_prompter,
NULL,
0,
"kadmin/changepw",
&opt);
if( ret == KRB5KRB_AP_ERR_BAD_INTEGRITY
|| ret == KRB5KRB_AP_ERR_MODIFIED) {
char *tmp;
tmp = new_pwd;
new_pwd = old_pwd;
old_pwd = tmp;
ret = krb5_get_init_creds_password (context,
&cred,
principal,
old_pwd,
nop_prompter,
NULL,
0,
"kadmin/changepw",
&opt);
}
if (ret)
krb5_err (context, 1, ret, "krb5_get_init_creds_password");
krb5_free_principal (context, principal);
ret = krb5_change_password (context, &cred, new_pwd,
&result_code,
&result_code_string,
&result_string);
if (ret)
krb5_err (context, 1, ret, "krb5_change_password");
free (old_pwd);
free (new_pwd);
krb5_free_creds_contents (context, &cred);
}
}
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,
"file [number]");
exit (ret);
}
int
main(int argc, char **argv)
{
int optind = 0;
int nreq;
char *end;
setprogname(argv[0]);
if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optind))
usage(1);
if (help_flag)
usage (0);
if (version_flag) {
print_version(NULL);
return 0;
}
argc -= optind;
argv += optind;
if (argc != 2)
usage (1);
srand (0);
nreq = strtol (argv[1], &end, 0);
if (argv[1] == end || *end != '\0')
usage (1);
generate_requests (argv[0], nreq);
return 0;
}
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