add-random-users.c revision 72445 
1/*
2 * Copyright (c) 2000 Kungliga Tekniska H�gskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of the Institute nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include "kadmin_locl.h"
35
36RCSID("$Id: add-random-users.c,v 1.2 2000/12/31 07:43:39 assar Exp $");
37
38#define WORDS_FILENAME "/usr/share/dict/words"
39
40#define NUSERS 1000
41
42static unsigned
43read_words (const char *filename, char ***ret_w)
44{
45    unsigned n, alloc;
46    FILE *f;
47    char buf[256];
48    char **w = NULL;
49
50    f = fopen (filename, "r");
51    if (f == NULL)
52	err (1, "cannot open %s", filename);
53    alloc = n = 0;
54    while (fgets (buf, sizeof(buf), f) != NULL) {
55	if (buf[strlen (buf) - 1] == '\n')
56	    buf[strlen (buf) - 1] = '\0';
57	if (n >= alloc) {
58	    alloc += 16;
59	    w = erealloc (w, alloc * sizeof(char **));
60	}
61	w[n++] = estrdup (buf);
62    }
63    *ret_w = w;
64    return n;
65}
66
67static void
68add_user (krb5_context context, void *kadm_handle,
69	  unsigned nwords, char **words)
70{
71    kadm5_principal_ent_rec princ;
72    char name[64];
73    int r1, r2;
74    krb5_error_code ret;
75    int mask;
76
77    r1 = rand();
78    r2 = rand();
79
80    snprintf (name, sizeof(name), "%s%d", words[r1 % nwords], r2 % 1000);
81
82    mask = KADM5_PRINCIPAL;
83
84    memset(&princ, 0, sizeof(princ));
85    ret = krb5_parse_name(context, name, &princ.principal);
86    if (ret)
87	krb5_err(context, 1, ret, "krb5_parse_name");
88
89    ret = kadm5_create_principal (kadm_handle, &princ, mask, name);
90    if (ret)
91	krb5_err (context, 1, ret, "kadm5_create_principal");
92    kadm5_free_principal_ent(kadm_handle, &princ);
93    printf ("%s\n", name);
94}
95
96static void
97add_users (unsigned n)
98{
99    krb5_error_code ret;
100    int i;
101    void *kadm_handle;
102    krb5_context context;
103    unsigned nwords;
104    char **words;
105
106    ret = krb5_init_context(&context);
107    if (ret)
108	errx (1, "krb5_init_context failed: %d", ret);
109    ret = kadm5_s_init_with_password_ctx(context,
110					 KADM5_ADMIN_SERVICE,
111					 NULL,
112					 KADM5_ADMIN_SERVICE,
113					 NULL, 0, 0,
114					 &kadm_handle);
115    if(ret)
116	krb5_err(context, 1, ret, "kadm5_init_with_password");
117
118    nwords = read_words (WORDS_FILENAME, &words);
119
120    for (i = 0; i < n; ++i)
121	add_user (context, kadm_handle, nwords, words);
122    kadm5_destroy(kadm_handle);
123    krb5_free_context(context);
124}
125
126static int version_flag	= 0;
127static int help_flag	= 0;
128
129static struct getargs args[] = {
130    { "version", 	0,   arg_flag, &version_flag },
131    { "help",		0,   arg_flag, &help_flag }
132};
133
134static void
135usage (int ret)
136{
137    arg_printusage (args,
138		    sizeof(args)/sizeof(*args),
139		    NULL,
140		    NULL);
141    exit (ret);
142}
143
144int
145main(int argc, char **argv)
146{
147    int optind = 0;
148
149    set_progname(argv[0]);
150    if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optind))
151	usage(1);
152    if (help_flag)
153	usage (0);
154    srand (0);
155    add_users (NUSERS);
156    return 0;
157}
158