1/*-
2 * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29#define CHAT_EXPECT 0
30#define CHAT_SEND   1
31#define CHAT_DONE   2
32#define CHAT_FAILED 3
33
34#define MAXABORTS   50
35
36struct physical;
37
38struct chat {
39  struct fdescriptor desc;
40  struct physical *physical;
41
42  int state;				/* Our CHAT_* status */
43
44  char script[LINE_LEN];		/* Our arg buffer */
45  char *argv[MAXARGS];			/* Our arguments (pointing to script) */
46  int argc;				/* Number of argv's */
47
48  int arg;				/* Our current arg number */
49  char exp[LINE_LEN];			/* Our translated current argument */
50  char *argptr;				/* Our current arg pointer */
51  int arglen;				/* The length of argptr */
52  char *nargptr;			/* Our next for expect-send-expect */
53
54  char buf[LINE_LEN*2];			/* Our input */
55  char *bufstart;			/* start of relevant data */
56  char *bufend;				/* end of relevant data */
57
58  int TimeoutSec;			/* Expect timeout value */
59  int TimedOut;				/* We timed out */
60
61  const char *phone;			/* Our phone number */
62
63  struct {
64    struct {
65      char *data;			/* Abort the dial if we get one */
66      int len;
67    } string[MAXABORTS];
68    int num;				/* How many AbortStrings */
69  } abort;
70
71  struct pppTimer pause;		/* Inactivity timer */
72  struct pppTimer timeout;		/* TimeoutSec timer */
73};
74
75#define descriptor2chat(d) \
76  ((d)->type == CHAT_DESCRIPTOR ? (struct chat *)(d) : NULL)
77#define	VECSIZE(v)	(sizeof(v) / sizeof(v[0]))
78
79extern void chat_Init(struct chat *, struct physical *);
80extern int chat_Setup(struct chat *, const char *, const char *);
81extern void chat_Finish(struct chat *);
82extern void chat_Destroy(struct chat *);
83