1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org> 5 * All rights reserved. 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 THE 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 <sys/param.h> 30 31 #define CHAT_EXPECT 0 32 #define CHAT_SEND 1 33 #define CHAT_DONE 2 34 #define CHAT_FAILED 3 35 36 #define MAXABORTS 50 37 38 struct physical; 39 40 struct chat { 41 struct fdescriptor desc; 42 struct physical *physical; 43 44 int state; /* Our CHAT_* status */ 45 46 char script[LINE_LEN]; /* Our arg buffer */ 47 char *argv[MAXARGS]; /* Our arguments (pointing to script) */ 48 int argc; /* Number of argv's */ 49 50 int arg; /* Our current arg number */ 51 char exp[LINE_LEN]; /* Our translated current argument */ 52 char *argptr; /* Our current arg pointer */ 53 int arglen; /* The length of argptr */ 54 char *nargptr; /* Our next for expect-send-expect */ 55 56 char buf[LINE_LEN*2]; /* Our input */ 57 char *bufstart; /* start of relevant data */ 58 char *bufend; /* end of relevant data */ 59 60 int TimeoutSec; /* Expect timeout value */ 61 int TimedOut; /* We timed out */ 62 63 const char *phone; /* Our phone number */ 64 65 struct { 66 struct { 67 char *data; /* Abort the dial if we get one */ 68 int len; 69 } string[MAXABORTS]; 70 int num; /* How many AbortStrings */ 71 } abort; 72 73 struct pppTimer pause; /* Inactivity timer */ 74 struct pppTimer timeout; /* TimeoutSec timer */ 75 }; 76 77 #define descriptor2chat(d) \ 78 ((d)->type == CHAT_DESCRIPTOR ? (struct chat *)(d) : NULL) 79 #define VECSIZE(v) nitems(v) 80 81 extern void chat_Init(struct chat *, struct physical *); 82 extern int chat_Setup(struct chat *, const char *, const char *); 83 extern void chat_Finish(struct chat *); 84 extern void chat_Destroy(struct chat *); 85