source: lib/libvarnish/cli_auth.c @ 080f25

Revision 080f25, 2.1 KB checked in by Poul-Henning Kamp <phk@…>, 3 years ago (diff)

Push "vas.h", <stdint.h>, and NULL out of libvarnish.h

  • Property mode set to 100644
Line 
1/*-
2 * Copyright (c) 2010-2011 Varnish Software AS
3 * All rights reserved.
4 *
5 * Author: Poul-Henning Kamp <phk@phk.freebsd.dk>
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include "config.h"
30
31#include <sys/types.h>
32#include <stdio.h>
33#include <unistd.h>
34
35#include "vas.h"
36#include "vcli.h"
37#include "vsha256.h"
38
39void
40VCLI_AuthResponse(int S_fd, const char *challenge,
41    char response[CLI_AUTH_RESPONSE_LEN + 1])
42{
43        SHA256_CTX ctx;
44        uint8_t buf[BUFSIZ];
45        int i;
46
47        assert(CLI_AUTH_RESPONSE_LEN == (SHA256_LEN * 2));
48
49        SHA256_Init(&ctx);
50        SHA256_Update(&ctx, challenge, 32);
51        SHA256_Update(&ctx, "\n", 1);
52        do {
53                i = read(S_fd, buf, sizeof buf);
54                if (i > 0)
55                        SHA256_Update(&ctx, buf, i);
56        } while (i > 0);
57        SHA256_Update(&ctx, challenge, 32);
58        SHA256_Update(&ctx, "\n", 1);
59        SHA256_Final(buf, &ctx);
60        for(i = 0; i < SHA256_LEN; i++)
61                sprintf(response + 2 * i, "%02x", buf[i]);
62}
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