1/*
2 * Copyright (c) 1997, 1999 Hellmuth Michaelis. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 *
25 *---------------------------------------------------------------------------
26 *
27 *	isdntelctl - i4b set telephone interface options
28 *	------------------------------------------------
29 *
30 *	$Id: main.c,v 1.7 2011/08/31 13:32:37 joerg Exp $
31 *
32 * $FreeBSD$
33 *
34 *      last edit-date: [Sat Jan  6 13:05:22 2001]
35 *
36 *---------------------------------------------------------------------------*/
37
38#include <stdio.h>
39#include <signal.h>
40#include <errno.h>
41#include <string.h>
42#include <stdlib.h>
43#include <unistd.h>
44#include <fcntl.h>
45#include <ctype.h>
46#include <sys/stat.h>
47#include <sys/wait.h>
48#include <sys/ioctl.h>
49#include <sys/types.h>
50#include <sys/time.h>
51
52#include <netisdn/i4b_ioctl.h>
53#include <netisdn/i4b_tel_ioctl.h>
54
55__dead static void usage ( void );
56
57#define I4BTELDEVICE	"/dev/isdntel"
58
59int opt_get = 0;
60int opt_unit = 0;
61int opt_U = 0;
62int opt_A = 0;
63int opt_C = 0;
64int opt_N = 0;
65
66/*---------------------------------------------------------------------------*
67 *	program entry
68 *---------------------------------------------------------------------------*/
69int
70main(int argc, char **argv)
71{
72	int c;
73	int ret;
74	int telfd;
75	char namebuffer[128];
76
77	while ((c = getopt(argc, argv, "cgu:AUN")) != -1)
78	{
79		switch (c)
80		{
81		case 'c':
82			opt_C = 1;
83			break;
84
85		case 'g':
86			opt_get = 1;
87			break;
88
89		case 'u':
90			opt_unit = atoi(optarg);
91			if (opt_unit < 0 || opt_unit > 9)
92				usage();
93			break;
94
95		case 'A':
96			opt_A = 1;
97			break;
98
99		case 'U':
100			opt_U = 1;
101			break;
102
103		case 'N':
104			opt_N = 1;
105			break;
106
107		case '?':
108		default:
109			usage();
110			break;
111		}
112	}
113
114	if (opt_get == 0 && opt_N == 0 && opt_U == 0 && opt_A == 0 && opt_C == 0)
115	{
116		opt_get = 1;
117	}
118
119	if ((opt_get + opt_N + opt_U + opt_A + opt_C) > 1)
120	{
121		usage();
122	}
123
124	snprintf(namebuffer, sizeof(namebuffer), "%s%d", I4BTELDEVICE, opt_unit);
125
126	if ((telfd = open(namebuffer, O_RDWR)) < 0)
127	{
128		fprintf(stderr, "isdntelctl: cannot open %s: %s\n", namebuffer, strerror(errno));
129		exit(1);
130	}
131
132	if (opt_get)
133	{
134		int format;
135
136		if ((ret = ioctl(telfd, I4B_TEL_GETAUDIOFMT, &format)) < 0)
137		{
138			fprintf(stderr, "ioctl I4B_TEL_GETAUDIOFMT failed: %s", strerror(errno));
139			exit(1);
140		}
141
142		if (format == CVT_NONE)
143		{
144			printf("device %s does not do A-law/mu-law format conversion\n", namebuffer);
145		}
146		else if (format == CVT_ALAW2ULAW)
147		{
148			printf("device %s does ISDN: A-law -> user: mu-law format conversion\n", namebuffer);
149		}
150		else if (format == CVT_ULAW2ALAW)
151		{
152			printf("device %s does ISDN: mu-law -> user: A-law format conversion\n", namebuffer);
153		}
154		else
155		{
156			printf("ERROR, device %s uses unknown format %d!\n", namebuffer, format);
157		}
158		exit(0);
159	}
160
161	if (opt_A)
162	{
163		int format = CVT_ALAW2ULAW;
164
165		if ((ret = ioctl(telfd, I4B_TEL_SETAUDIOFMT, &format)) < 0)
166		{
167			fprintf(stderr, "ioctl I4B_TEL_SETAUDIOFMT failed: %s", strerror(errno));
168			exit(1);
169		}
170		exit(0);
171	}
172
173	if (opt_U)
174	{
175		int format = CVT_ULAW2ALAW;
176
177		if ((ret = ioctl(telfd, I4B_TEL_SETAUDIOFMT, &format)) < 0)
178		{
179			fprintf(stderr, "ioctl I4B_TEL_SETAUDIOFMT failed: %s", strerror(errno));
180			exit(1);
181		}
182		exit(0);
183	}
184	if (opt_N)
185	{
186		int format = CVT_NONE;
187
188		if ((ret = ioctl(telfd, I4B_TEL_SETAUDIOFMT, &format)) < 0)
189		{
190			fprintf(stderr, "ioctl I4B_TEL_SETAUDIOFMT failed: %s", strerror(errno));
191			exit(1);
192		}
193		exit(0);
194	}
195	if (opt_C)
196	{
197		int dummy;
198		if ((ret = ioctl(telfd, I4B_TEL_EMPTYINPUTQUEUE, &dummy)) < 0)
199		{
200			fprintf(stderr, "ioctl I4B_TEL_EMPTYINPUTQUEUE failed: %s", strerror(errno));
201			exit(1);
202		}
203		exit(0);
204	}
205	return(0);
206}
207
208/*---------------------------------------------------------------------------*
209 *	usage display and exit
210 *---------------------------------------------------------------------------*/
211static void
212usage(void)
213{
214	fprintf(stderr, "\n");
215	fprintf(stderr, "isdntelctl - /dev/isdntel control, version %d.%d.%d\n",VERSION, REL, STEP);
216	fprintf(stderr, "usage: isdntelctl -c -g -u <unit> -A -N -U\n");
217	fprintf(stderr, "       -c            clear input queue\n");
218	fprintf(stderr, "       -g            get current settings\n");
219	fprintf(stderr, "       -u unit       specify unit number\n");
220	fprintf(stderr, "       -A            set conversion ISDN: A-law -> user: mu-law\n");
221	fprintf(stderr, "       -U            set conversion ISDN: mu-law -> user: A-law\n");
222	fprintf(stderr, "       -N            set conversion to no A-law/mu-law conversion\n");
223	fprintf(stderr, "\n");
224	exit(1);
225}
226
227/* EOF */
228