1 /*
2 * SysDB - src/frontend/session.c
3 * Copyright (C) 2013 Sebastian 'tokkee' Harl <sh@tokkee.org>
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 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
17 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
28 #if HAVE_CONFIG_H
29 # include "config.h"
30 #endif /* HAVE_CONFIG_H */
32 #include "sysdb.h"
34 #include "frontend/connection-private.h"
36 #include <string.h>
38 /*
39 * public API
40 */
42 int
43 sdb_fe_session_start(sdb_conn_t *conn)
44 {
45 char username[sdb_strbuf_len(conn->buf) + 1];
46 const char *tmp;
48 if ((! conn) || (conn->cmd != SDB_CONNECTION_STARTUP))
49 return -1;
51 tmp = sdb_strbuf_string(conn->buf);
52 if ((! tmp) || (! conn->cmd_len) || (! *tmp)) {
53 sdb_strbuf_sprintf(conn->errbuf, "Invalid empty username");
54 return -1;
55 }
56 strncpy(username, tmp, conn->cmd_len);
57 username[conn->cmd_len] = '\0';
59 if (! conn->username) {
60 /* We trust the remote peer.
61 * TODO: make the auth mechanism configurable */
62 conn->username = strdup(username);
63 }
64 else if (strcmp(conn->username, username)) {
65 sdb_strbuf_sprintf(conn->errbuf, "%s cannot act on behalf of %s",
66 conn->username, username);
67 return -1;
68 }
70 sdb_connection_send(conn, SDB_CONNECTION_OK, 0, NULL);
71 conn->ready = 1;
72 return 0;
73 } /* sdb_fe_session_start */
75 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */