generate-requests.c revision 78527 
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 "kuser_locl.h"
35
36RCSID("$Id: generate-requests.c,v 1.3 2001/02/20 01:44:51 assar Exp $");
37
38static krb5_error_code
39null_key_proc (krb5_context context,
40	       krb5_enctype type,
41	       krb5_salt salt,
42	       krb5_const_pointer keyseed,
43	       krb5_keyblock **key)
44{
45    return ENOTTY;
46}
47
48static unsigned
49read_words (const char *filename, char ***ret_w)
50{
51    unsigned n, alloc;
52    FILE *f;
53    char buf[256];
54    char **w = NULL;
55
56    f = fopen (filename, "r");
57    if (f == NULL)
58	err (1, "cannot open %s", filename);
59    alloc = n = 0;
60    while (fgets (buf, sizeof(buf), f) != NULL) {
61	if (buf[strlen (buf) - 1] == '\n')
62	    buf[strlen (buf) - 1] = '\0';
63	if (n >= alloc) {
64	    alloc += 16;
65	    w = erealloc (w, alloc * sizeof(char **));
66	}
67	w[n++] = estrdup (buf);
68    }
69    *ret_w = w;
70    return n;
71}
72
73static void
74generate_requests (const char *filename, unsigned nreq)
75{
76    krb5_context context;
77    krb5_error_code ret;
78    krb5_creds cred;
79    int i;
80    char **words;
81    unsigned nwords;
82
83    ret = krb5_init_context (&context);
84    if (ret)
85	errx (1, "krb5_init_context failed: %d", ret);
86
87    nwords = read_words (filename, &words);
88
89    for (i = 0; i < nreq; ++i) {
90	char *name = words[rand() % nwords];
91	krb5_realm *client_realm;
92
93	memset(&cred, 0, sizeof(cred));
94
95	ret = krb5_parse_name (context, name, &cred.client);
96	if (ret)
97	    krb5_err (context, 1, ret, "krb5_parse_name %s", name);
98	client_realm = krb5_princ_realm (context, cred.client);
99
100	ret = krb5_make_principal(context, &cred.server, *client_realm,
101				  KRB5_TGS_NAME, *client_realm, NULL);
102	if (ret)
103	    krb5_err (context, 1, ret, "krb5_make_principal");
104
105	ret = krb5_get_in_cred (context, 0, NULL, NULL, NULL, NULL,
106				null_key_proc, NULL, NULL, NULL,
107				&cred, NULL);
108	krb5_free_creds_contents (context, &cred);
109    }
110}
111
112static int version_flag	= 0;
113static int help_flag	= 0;
114
115static struct getargs args[] = {
116    { "version", 	0,   arg_flag, &version_flag },
117    { "help",		0,   arg_flag, &help_flag }
118};
119
120static void
121usage (int ret)
122{
123    arg_printusage (args,
124		    sizeof(args)/sizeof(*args),
125		    NULL,
126		    "file number");
127    exit (ret);
128}
129
130int
131main(int argc, char **argv)
132{
133    int optind = 0;
134    int nreq;
135    char *end;
136
137    setprogname(argv[0]);
138    if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optind))
139	usage(1);
140    argc -= optind;
141    argv += optind;
142
143    if (argc != 2)
144	usage (1);
145    srand (0);
146    nreq = strtol (argv[1], &end, 0);
147    if (argv[1] == end || *end != '\0')
148	usage (1);
149    generate_requests (argv[0], nreq);
150    return 0;
151}
152