diff options
Diffstat (limited to 'crypto/heimdal/kpasswd/kpasswd-generator.c')
| -rw-r--r-- | crypto/heimdal/kpasswd/kpasswd-generator.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/crypto/heimdal/kpasswd/kpasswd-generator.c b/crypto/heimdal/kpasswd/kpasswd-generator.c new file mode 100644 index 0000000..6bd836c --- /dev/null +++ b/crypto/heimdal/kpasswd/kpasswd-generator.c @@ -0,0 +1,193 @@ +/* + * 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 "kpasswd_locl.h" + +RCSID("$Id: kpasswd-generator.c,v 1.2 2000/12/31 07:47:38 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 *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; + + set_progname(argv[0]); + if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optind)) + usage(1); + 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; +} |
