1 /*
2 * SysDB - src/tools/sysdb/input.h
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 #include "client/sock.h"
29 #include "utils/strbuf.h"
31 #ifndef SYSDB_INPUT_H
32 #define SYSDB_INPUT_H 1
34 typedef struct {
35 sdb_client_t *client;
37 sdb_strbuf_t *input;
38 size_t tokenizer_pos;
39 size_t query_len;
40 } sdb_input_t;
42 #define SDB_INPUT_INIT { NULL, NULL, 0, 0 }
44 /*
45 * sdb_input_readline:
46 * This function is supposed to be used with a flex scanner's YY_INPUT. It
47 * reads input from the user using reading() and places available input in the
48 * specified buffer, returning the number of bytes in 'n_chars' (no more than
49 * 'max_chars'.
50 *
51 * Returns:
52 * - The number of newly read bytes.
53 * - A negative value in case of an error.
54 */
55 ssize_t
56 sdb_input_readline(sdb_input_t *input, char *buf,
57 int *n_chars, size_t max_chars);
59 /*
60 * scanner
61 */
63 void
64 sdb_input_set(sdb_input_t *new_input);
66 #endif /* SYSDB_INPUT_H */
68 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */