1 files changed, 84 insertions, 0 deletions
diff --git a/usr.sbin/ppp/chat.h b/usr.sbin/ppp/chat.h
new file mode 100644
index 000000000000..c8fcf9a9c3cc
--- /dev/null
+++ b/usr.sbin/ppp/chat.h
@@ -0,0 +1,84 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+
+#define CHAT_EXPECT 0
+#define CHAT_SEND   1
+#define CHAT_DONE   2
+#define CHAT_FAILED 3
+
+#define MAXABORTS   50
+
+struct physical;
+
+struct chat {
+  struct fdescriptor desc;
+  struct physical *physical;
+
+  int state;				/* Our CHAT_* status */
+
+  char script[LINE_LEN];		/* Our arg buffer */
+  char *argv[MAXARGS];			/* Our arguments (pointing to script) */
+  int argc;				/* Number of argv's */
+
+  int arg;				/* Our current arg number */
+  char exp[LINE_LEN];			/* Our translated current argument */
+  char *argptr;				/* Our current arg pointer */
+  int arglen;				/* The length of argptr */
+  char *nargptr;			/* Our next for expect-send-expect */
+
+  char buf[LINE_LEN*2];			/* Our input */
+  char *bufstart;			/* start of relevant data */
+  char *bufend;				/* end of relevant data */
+
+  int TimeoutSec;			/* Expect timeout value */
+  int TimedOut;				/* We timed out */
+
+  const char *phone;			/* Our phone number */
+
+  struct {
+    struct {
+      char *data;			/* Abort the dial if we get one */
+      int len;
+    } string[MAXABORTS];
+    int num;				/* How many AbortStrings */
+  } abort;
+
+  struct pppTimer pause;		/* Inactivity timer */
+  struct pppTimer timeout;		/* TimeoutSec timer */
+};
+
+#define descriptor2chat(d) \
+  ((d)->type == CHAT_DESCRIPTOR ? (struct chat *)(d) : NULL)
+#define	VECSIZE(v)	nitems(v)
+
+extern void chat_Init(struct chat *, struct physical *);
+extern int chat_Setup(struct chat *, const char *, const char *);
+extern void chat_Finish(struct chat *);
+extern void chat_Destroy(struct chat *);