Tue Mar 18 07:00:01 CET 2003

git-svn-id: http://svn.digium.com/svn/zaptel/trunk@156 5390a7c7-147a-4af0-8ec9-7488f05a26cb

1 files changed, 862 insertions, 0 deletions

diff --git a/ztcfg-dude.c b/ztcfg-dude.c
new file mode 100755
index 0000000..d01efd7
--- /dev/null
+++ b/ztcfg-dude.c
@@ -0,0 +1,862 @@
+/*
+ * Configuration program for Zapata Telephony Interface
+ *
+ * Written by Mark Spencer <markster@linux-support.net>
+ * Based on previous works, designs, and architectures conceived and
+ * written by Jim Dixon <jim@lambdatel.com>.
+ *
+ * Copyright (C) 2001 Jim Dixon / Zapata Telephony.
+ * Copyright (C) 2001 Linux Support Services, Inc.
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under thet erms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 
+ *
+ * Primary Author: Mark Spencer <markster@linux-support.net>
+ *
+ */
+
+#include <stdio.h> 
+#include <getopt.h>
+#include <string.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <math.h>
+#include "ztcfg.h"
+#include "tonezone.h"
+#include "zaptel.h"
+
+#define NUM_SPANS ZT_MAX_SPANS
+
+/* Assume no more than 1024 dynamics */
+#define NUM_DYNAMIC	1024
+
+static int lineno=0;
+
+static FILE *cf;
+
+static char *filename=CONFIG_FILENAME;
+
+#define DEBUG_READER (1 << 0)
+#define DEBUG_PARSER (1 << 1)
+#define DEBUG_APPLY  (1 << 2)
+static int debug = 0;
+
+static int errcnt = 0;
+
+static int deftonezone = -1;
+
+static struct zt_lineconfig lc[ZT_MAX_SPANS];
+
+static struct zt_chanconfig cc[ZT_MAX_CHANNELS];
+
+static struct zt_sfconfig sf[ZT_MAX_CHANNELS];
+
+static struct zt_dynamic_span zds[NUM_DYNAMIC];
+
+static char *sig[ZT_MAX_CHANNELS];		/* Signalling */
+
+static int slineno[ZT_MAX_CHANNELS];	/* Line number where signalling specified */
+
+static int spans=0;
+
+static int fo_real = 1;
+
+static int verbose = 0;
+
+static int stopmode = 0;
+
+static int numdynamic = 0;
+
+static char zonestoload[ZT_TONE_ZONE_MAX][10];
+
+static int numzones = 0;
+
+static char *lbostr[] = {
+"0 db (CSU)/0-133 feet (DSX-1)",
+"133-266 feet (DSX-1)",
+"266-399 feet (DSX-1)",
+"399-533 feet (DSX-1)",
+"533-655 feet (DSX-1)",
+"-7.5db (CSU)",
+"-15db (CSU)",
+"-22.5db (CSU)"
+};
+
+static char *laws[] = {
+	"Default",
+	"Mu-law",
+	"A-law"
+};
+
+static int error(char *fmt, ...)
+{
+	int res;
+	static int shown=0;
+	va_list ap;
+	if (!shown) {
+		fprintf(stderr, "Notice: Configuration file is %s\n", filename);
+		shown++;
+	}
+	res = fprintf(stderr, "line %d: ", lineno);
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	errcnt++;
+	return res;
+}
+
+static void trim(char *buf)
+{
+	/* Trim off trailing spaces, tabs, etc */
+	while(strlen(buf) && (buf[strlen(buf) -1] < 33))
+		buf[strlen(buf) -1] = '\0';
+}
+
+static int parseargs(char *input, char *output[], int maxargs, char sep)
+{
+	char *c;
+	int pos=0;
+	c = input;
+	output[pos++] = c;
+	while(*c) {
+		while(*c && (*c != sep)) c++;
+		if (*c) {
+			*c = '\0';
+			c++;
+			while(*c && (*c < 33)) c++;
+			if (*c)  {
+				if (pos >= maxargs)
+					return -1;
+				output[pos] = c;
+				trim(output[pos]);
+				pos++;
+				output[pos] = NULL;
+				/* Return error if we have too many */
+			} else
+				return pos;
+		}
+	}
+	return pos;
+}
+
+int dspanconfig(char *keyword, char *args)
+{
+	static char *realargs[10];
+	int argc;
+	int res;
+	int chans;
+	int timing;
+	argc = res = parseargs(args, realargs, 4, ',');
+	if (res != 4) {
+		error("Incorrect number of arguments to 'dynamic' (should be <driver>,<address>,<num channels>, <timing>)\n");
+	}
+	res = sscanf(realargs[2], "%d", &chans);
+	if ((res == 1) && (chans < 1))
+		res = -1;
+	if (res != 1) {
+		error("Invalid number of channels '%s', should be a number > 0.\n", realargs[2]);
+	}
+
+	res = sscanf(realargs[3], "%d", &timing);
+	if ((res == 1) && (timing < 0))
+		res = -1;
+	if (res != 1) {
+		error("Invalid timing '%s', should be a number > 0.\n", realargs[3]);
+	}
+
+
+	strncpy(zds[numdynamic].driver, realargs[0], sizeof(zds[numdynamic].driver));
+	strncpy(zds[numdynamic].addr, realargs[1], sizeof(zds[numdynamic].addr));
+	zds[numdynamic].numchans = chans;
+	zds[numdynamic].timing = timing;
+	
+	numdynamic++;
+	return 0;
+}
+
+int spanconfig(char *keyword, char *args)
+{
+	static char *realargs[10];
+	int res;
+	int argc;
+	int span;
+	int timing;
+	argc = res = parseargs(args, realargs, 6, ',');
+	if ((res < 5) || (res > 6)) {
+		error("Incorrect number of arguments to 'span' (should be <spanno>,<timing>,<lbo>,<framing>,<coding>[,yellow])\n");
+	}
+	res = sscanf(realargs[0], "%i", &span);
+	if (res != 1) {
+		error("Span number should be a valid span number, not '%s'\n", realargs[0]);
+		return -1;
+	}
+	res = sscanf(realargs[1], "%i", &timing);
+	if ((res != 1) || (timing < 0) || (timing > 15)) {
+		error("Timing should be a number from 0 to 15, not '%s'\n", realargs[1]);
+		return -1;
+	}
+	res = sscanf(realargs[2], "%i", &lc[spans].lbo);
+	if (res != 1) {
+		error("Line build-out (LBO) should be a number from 0 to 7 (usually 0) not '%s'\n", realargs[2]);
+		return -1;
+	}
+	if ((lc[spans].lbo < 0) || (lc[spans].lbo > 7)) {
+		error("Line build-out should be in the range 0 to 7, not %d\n", lc[spans].lbo);
+		return -1;
+	}
+	if (!strcasecmp(realargs[3], "d4")) {
+		lc[spans].lineconfig |= ZT_CONFIG_D4;
+		lc[spans].lineconfig &= ~ZT_CONFIG_ESF;
+		lc[spans].lineconfig &= ~ZT_CONFIG_CCS;
+	} else if (!strcasecmp(realargs[3], "esf")) {
+		lc[spans].lineconfig |= ZT_CONFIG_ESF;
+		lc[spans].lineconfig &= ~ZT_CONFIG_D4;
+		lc[spans].lineconfig &= ~ZT_CONFIG_CCS;
+	} else if (!strcasecmp(realargs[3], "ccs")) {
+		lc[spans].lineconfig |= ZT_CONFIG_CCS;
+		lc[spans].lineconfig &= ~(ZT_CONFIG_ESF | ZT_CONFIG_D4);
+	} else if (!strcasecmp(realargs[3], "cas")) {
+		lc[spans].lineconfig &= ~ZT_CONFIG_CCS;
+		lc[spans].lineconfig &= ~(ZT_CONFIG_ESF | ZT_CONFIG_D4);
+	} else {
+		error("Framing(T1)/Signalling(E1) must be one of 'd4', 'esf', 'cas' or 'ccs', not '%s'\n", realargs[3]);
+		return -1;
+	}
+	if (!strcasecmp(realargs[4], "ami")) {
+		lc[spans].lineconfig &= ~(ZT_CONFIG_B8ZS | ZT_CONFIG_HDB3);
+		lc[spans].lineconfig |= ZT_CONFIG_AMI;
+	} else if (!strcasecmp(realargs[4], "b8zs")) {
+		lc[spans].lineconfig |= ZT_CONFIG_B8ZS;
+		lc[spans].lineconfig &= ~(ZT_CONFIG_AMI | ZT_CONFIG_HDB3);
+	} else if (!strcasecmp(realargs[4], "hdb3")) {
+		lc[spans].lineconfig |= ZT_CONFIG_HDB3;
+		lc[spans].lineconfig &= ~(ZT_CONFIG_AMI | ZT_CONFIG_B8ZS);
+	} else {
+		error("Coding must be one of 'ami', 'b8zs' or 'hdb3', not '%s'\n", realargs[4]);
+		return -1;
+	}
+	if (argc > 5) {
+		if (!strcasecmp(realargs[5], "yellow"))
+			lc[spans].lineconfig |= ZT_CONFIG_NOTOPEN;
+		else if (!strcasecmp(realargs[5], "crc4")) {
+			lc[spans].lineconfig |= ZT_CONFIG_CRC4;
+		} else {
+			error("Only valid fifth arguments are 'yellow' or 'crc4', not '%s'\n", realargs[5]);
+			return -1;
+		}
+	}
+	if (argc > 6) {
+		if (!strcasecmp(realargs[6], "yellow"))
+			lc[spans].lineconfig |= ZT_CONFIG_NOTOPEN;
+		else {
+			error("Only valid sixth argument is 'yellow', not '%s'\n", realargs[6]);
+			return -1;
+		}
+	}
+	lc[spans].span = spans + 1;
+	lc[spans].sync = timing;
+	/* Valid span */
+	spans++;
+	return 0;
+}
+
+int apply_channels(int chans[], char *argstr)
+{
+	char *args[ZT_MAX_CHANNELS+1];
+	char *range[3];
+	int res,x, res2,y;
+	int chan;
+	int start, finish;
+	char argcopy[256];
+	res = parseargs(argstr, args, ZT_MAX_CHANNELS, ',');
+	if (res < 0)
+		error("Too many arguments...  Max is %d\n", ZT_MAX_CHANNELS);
+	for (x=0;x<res;x++) {
+		if (strchr(args[x], '-')) {
+			/* It's a range */
+			strncpy(argcopy, args[x], sizeof(argcopy));
+			res2 = parseargs(argcopy, range, 2, '-');
+			if (res2 != 2) {
+				error("Syntax error in range '%s'.  Should be <val1>-<val2>.\n", args[x]);
+				return -1;
+			}
+			res2 =sscanf(range[0], "%i", &start);
+			if (res2 != 1) {
+				error("Syntax error.  Start of range '%s' should be a number from 1 to %d\n", args[x], ZT_MAX_CHANNELS - 1);
+				return -1;
+			} else if ((start < 1) || (start >= ZT_MAX_CHANNELS)) {
+				error("Start of range '%s' must be between 1 and %d (not '%d')\n", args[x], ZT_MAX_CHANNELS - 1, start);
+				return -1;
+			}
+			res2 =sscanf(range[1], "%i", &finish);
+			if (res2 != 1) {
+				error("Syntax error.  End of range '%s' should be a number from 1 to %d\n", args[x], ZT_MAX_CHANNELS - 1);
+				return -1;
+			} else if ((finish < 1) || (finish >= ZT_MAX_CHANNELS)) {
+				error("end of range '%s' must be between 1 and %d (not '%d')\n", args[x], ZT_MAX_CHANNELS - 1, finish);
+				return -1;
+			}
+			if (start > finish) {
+				error("Range '%s' should start before it ends\n", args[x]);
+				return -1;
+			}
+			for (y=start;y<=finish;y++)
+				chans[y]=1;
+		} else {
+			/* It's a single channel */
+			res2 =sscanf(args[x], "%i", &chan);
+			if (res2 != 1) {
+				error("Syntax error.  Channel should be a number from 1 to %d, not '%s'\n", ZT_MAX_CHANNELS - 1, args[x]);
+				return -1;
+			} else if ((chan < 1) || (chan >= ZT_MAX_CHANNELS)) {
+				error("Channel must be between 1 and %d (not '%d')\n", ZT_MAX_CHANNELS - 1, chan);
+				return -1;
+			}
+			chans[chan]=1;
+		}		
+	}
+	return res;
+}
+
+int parse_idle(int *i, char *s)
+{
+	char a,b,c,d;
+	if (s) {
+		if (sscanf(s, "%c%c%c%c", &a,&b,&c,&d) == 4) {
+			if (((a == '0') || (a == '1')) && ((b == '0') || (b == '1')) && ((c == '0') || (c == '1')) && ((d == '0') || (d == '1'))) {
+				*i = 0;
+				if (a == '1') 
+					*i |= ZT_ABIT;
+				if (b == '1')
+					*i |= ZT_BBIT;
+				if (c == '1')
+					*i |= ZT_CBIT;
+				if (d == '1')
+					*i |= ZT_DBIT;
+				return 0;
+			}
+		}
+	}
+	error("CAS Signalling requires idle definition in the form ':xxxx' at the end of the channel definition, where xxxx represent the a, b, c, and d bits\n");
+	return -1;
+}
+
+void mknotch(float freq, float bw, long *p1, long *p2, long *p3);
+
+static void mktxtone(float freq, float l, int *fac, int *init_v2, int *init_v3)
+{
+float	gain;
+
+	/* Bring it down -8 dbm */
+	gain = pow(10.0, (l - 3.14) / 20.0) * 65536.0 / 2.0;
+
+	*fac = 2.0 * cos(2.0 * M_PI * (freq / 8000.0)) * 32768.0;
+	*init_v2 = sin(-4.0 * M_PI * (freq / 8000.0)) * gain;
+	*init_v3 = sin(-2.0 * M_PI * (freq / 8000.0)) * gain;
+}
+
+static int parse_sf(struct zt_sfconfig *sf, char *str)
+{
+char	*realargs[10],*args;
+int	res;
+float	rxfreq,rxbw,txfreq,txlevel;
+int	flags = 0;
+
+	args = strdup(str);
+	res = parseargs(args, realargs, 6, ',');
+	if (res != 6)
+	{
+		error("Incorrect number of arguments to 'sf' (should be :<rx freq (hz)>,<bandwidth (hz)>,<normal/reverse (rx)>,<tx freq (hz)>,<tx level (dbm)>,<normal/reverse (tx)>)\n");
+		free(args);
+		return -1;
+	}
+	res = sscanf(realargs[0],"%f",&rxfreq);
+	if ((res < 1) || (rxfreq && ((rxfreq < 100.0) || (rxfreq >= 4000.0))))
+	{
+		error("Invalid rx freq. specification (should be between 100.0 and 4000.0 hertz\n");
+		free(args);
+		return -1;
+	}
+	res = sscanf(realargs[1],"%f",&rxbw);
+	if ((res < 1) || (rxfreq && ((rxbw < 5.0) || (rxbw >= 1000.0))))
+	{
+		error("Invalid rx bandwidth specification (should be between 5.0 and 1000.0 hertz\n");
+		free(args);
+		return -1;
+	}
+	res = sscanf(realargs[3],"%f",&txfreq);
+	if ((res < 1) || (txfreq && ((txfreq < 100.0) || (txfreq >= 4000.0))))
+	{
+		error("Invalid tx freq. specification (should be between 100.0 and 4000.0 hertz\n");
+		free(args);
+		return -1;
+	}
+	res = sscanf(realargs[4],"%f",&txlevel);
+	if ((res < 1) || (txfreq && ((txlevel < -50.0) || (txlevel > 3.0))))
+	{
+		error("Invalid tx level specification (should be between -50.0 and 3.0 dbm\n");
+		free(args);
+		return -1;
+	}
+	if ((*realargs[2] == 'i') || (*realargs[2] == 'I') ||
+	 (*realargs[2] == 'r') || (*realargs[2] == 'R'))
+		flags |= ZT_REVERSE_RXTONE;
+	if ((*realargs[5] == 'i') || (*realargs[5] == 'I') ||
+	 (*realargs[5] == 'r') || (*realargs[5] == 'R'))
+		flags |= ZT_REVERSE_TXTONE;
+	if (rxfreq) mknotch(rxfreq,rxbw,&sf->rxp1,&sf->rxp2,&sf->rxp3);
+	if (txfreq) mktxtone(txfreq,txlevel,&sf->txtone,&sf->tx_v2,&sf->tx_v3);
+	sf->toneflag = flags;
+	free(args);
+	return 0;
+}
+
+static int chanconfig(char *keyword, char *args)
+{
+	int chans[ZT_MAX_CHANNELS];
+	int res;
+	int x;
+	int master=0;
+	char *idle;
+	bzero(chans, sizeof(chans));
+	strtok(args, ":");
+	idle = strtok(NULL, ":");
+	res = apply_channels(chans, args);
+	if (res <= 0)
+		return -1;
+	for (x=1;x<ZT_MAX_CHANNELS;x++) 
+		if (chans[x]) {
+			if (slineno[x]) {
+				error("Channel %d already configured as '%s' at line %d\n", x, sig[x], slineno[x]);
+				continue;
+			}
+			cc[x].chan = x;
+			memset(&sf[x],0,sizeof(struct zt_sfconfig));
+			sf[x].chan = x;
+			cc[x].master = x;
+			slineno[x] = lineno;
+			if (!strcasecmp(keyword, "e&m")) {
+				sig[x] = "E & M";
+				cc[x].sigtype = ZT_SIG_EM;
+			} else if (!strcasecmp(keyword, "sf")) {
+				if (idle && parse_sf(&sf[x], idle))
+					return -1;
+				sig[x] = "Single Freq. Tone Only (No Signalling)";
+				cc[x].sigtype = ZT_SIG_SF;
+			} else if (!strcasecmp(keyword, "fxsls")) {
+				sig[x] = "FXS Loopstart";
+				cc[x].sigtype = ZT_SIG_FXSLS;
+			} else if (!strcasecmp(keyword, "fxsgs")) {
+				sig[x] = "FXS Groundstart";
+				cc[x].sigtype = ZT_SIG_FXSGS;
+			} else if (!strcasecmp(keyword, "fxsks")) {
+				sig[x] = "FXS Kewlstart";
+				cc[x].sigtype = ZT_SIG_FXSKS;
+			} else if (!strcasecmp(keyword, "fxols")) {
+				sig[x] = "FXO Loopstart";
+				cc[x].sigtype = ZT_SIG_FXOLS;
+			} else if (!strcasecmp(keyword, "fxogs")) {
+				sig[x] = "FXO Groundstart";
+				cc[x].sigtype = ZT_SIG_FXOGS;
+			} else if (!strcasecmp(keyword, "fxoks")) {
+				sig[x] = "FXO Kewlstart";
+				cc[x].sigtype = ZT_SIG_FXOKS;
+			} else if (!strcasecmp(keyword, "cas") || !strcasecmp(keyword, "user")) {
+				if (parse_idle(&cc[x].idlebits, idle))
+					return -1;
+				sig[x] = "CAS / User";
+				cc[x].sigtype = ZT_SIG_CAS;
+			} else if (!strcasecmp(keyword, "unused")) {
+				sig[x] = "Unused";
+				cc[x].sigtype = 0;
+			} else if (!strcasecmp(keyword, "indclear") || !strcasecmp(keyword, "bchan")) {
+				sig[x] = "Individual Clear channel";
+				cc[x].sigtype = ZT_SIG_CLEAR;
+			} else if (!strcasecmp(keyword, "clear")) {
+				sig[x] = "Clear channel";
+				if (master) {
+					cc[x].sigtype = ZT_SIG_SLAVE;
+					cc[x].master = master;
+				} else {
+					cc[x].sigtype = ZT_SIG_CLEAR;
+					master = x;
+				}
+			} else if (!strcasecmp(keyword, "rawhdlc")) {
+				sig[x] = "Raw HDLC";
+				if (master) {
+					cc[x].sigtype = ZT_SIG_SLAVE;
+					cc[x].master = master;
+				} else {
+					cc[x].sigtype = ZT_SIG_HDLCRAW;
+					master = x;
+				}
+			} else if (!strcasecmp(keyword, "nethdlc")) {
+				sig[x] = "Network HDLC";
+				if (master) {
+					cc[x].sigtype = ZT_SIG_SLAVE;
+					cc[x].master = master;
+				} else {
+					cc[x].sigtype = ZT_SIG_HDLCNET;
+					master = x;
+				}
+			} else if (!strcasecmp(keyword, "fcshdlc") || !strcasecmp(keyword, "dchan")) {
+				sig[x] = "HDLC with FCS check";
+				if (master) {
+					cc[x].sigtype = ZT_SIG_SLAVE;
+					cc[x].master = master;
+				} else {
+					cc[x].sigtype = ZT_SIG_HDLCFCS;
+					master = x;
+				}
+			} else {
+				fprintf(stderr, "Huh? (%s)\n", keyword);
+			}
+		}
+	return 0;
+}
+
+static int setlaw(char *keyword, char *args)
+{
+	int res;
+	int law;
+	int x;
+	int chans[ZT_MAX_CHANNELS];
+
+	bzero(chans, sizeof(chans));
+	res = apply_channels(chans, args);
+	if (res <= 0)
+		return -1;
+	if (!strcasecmp(keyword, "alaw")) {
+		law = ZT_LAW_ALAW;
+	} else if (!strcasecmp(keyword, "mulaw")) {
+		law = ZT_LAW_MULAW;
+	} else if (!strcasecmp(keyword, "deflaw")) {
+		law = ZT_LAW_DEFAULT;
+	} else {
+		fprintf(stderr, "Huh??? Don't know about '%s' law\n", keyword);
+		return -1;
+	}
+	for (x=0;x<ZT_MAX_CHANNELS;x++) {
+		if (chans[x])
+			cc[x].deflaw = law;
+	}
+	return 0;
+}
+
+static int registerzone(char *keyword, char *args)
+{
+	if (numzones >= ZT_TONE_ZONE_MAX) {
+		error("Too many tone zones specified\n");
+		return 0;
+	}
+	strncpy(zonestoload[numzones++], args, sizeof(zonestoload[0]));
+	return 0;
+}
+
+static int defaultzone(char *keyword, char *args)
+{
+	struct tone_zone *z;
+	if (!(z = tone_zone_find(args))) {
+		error("No such tone zone known: %s\n", args);
+		return 0;
+	}
+	deftonezone = z->zone;
+	return 0;
+}
+
+#if 0
+static int unimplemented(char *keyword, char *args)
+{
+	fprintf(stderr, "Warning: '%s' is not yet implemented\n", keyword);
+	return 0;
+}
+#endif
+
+static void printconfig()
+{
+	int x,y;
+	int ps;
+	int configs=0;
+	printf("\nZaptel Configuration\n"
+	       "======================\n\n");
+	for (x=0;x<spans;x++) 
+		printf("SPAN %d: %3s/%4s Build-out: %s\n",
+			x+1, ( lc[x].lineconfig & ZT_CONFIG_ESF ? "ESF" : "D4"),
+			(lc[x].lineconfig & ZT_CONFIG_B8ZS ? "B8ZS" :  "AMI"),
+			lbostr[lc[x].lbo]);
+	for (x=0;x<numdynamic;x++) {
+		printf("Dynamic span %d: driver %s, addr %s, channels %d, timing %d\n",
+		       x +1, zds[x].driver, zds[x].addr, zds[x].numchans, zds[x].timing);
+	}
+	if (verbose > 1) {
+		printf("\nChannel map:\n\n");
+		for (x=1;x<ZT_MAX_CHANNELS;x++) {
+			if ((cc[x].sigtype != ZT_SIG_SLAVE) && (cc[x].sigtype)) {
+				configs++;
+				printf("Channel %02d: %s (%s)", x, sig[x], laws[cc[x].deflaw]);
+				ps = 0;
+				for (y=1;y<ZT_MAX_CHANNELS;y++) 
+					if (cc[y].master == x)  {
+						printf("%s%02d", ps++ ? " " : " (Slaves: ", y);
+					}
+				if (ps) printf(")\n"); else printf("\n");
+			} else
+				if (cc[x].sigtype) configs++;
+		}
+	} else 
+		for (x=1;x<ZT_MAX_CHANNELS;x++) 
+			if (cc[x].sigtype)
+				configs++;
+	printf("\n%d channels configured.\n\n", configs);
+}
+
+static struct handler {
+	char *keyword;
+	int (*func)(char *keyword, char *args);
+} handlers[] = {
+	{ "span", spanconfig },
+	{ "dynamic", dspanconfig },
+	{ "loadzone", registerzone },
+	{ "defaultzone", defaultzone },
+	{ "e&m", chanconfig },
+	{ "sf", chanconfig },
+	{ "fxsls", chanconfig },
+	{ "fxsgs", chanconfig },
+	{ "fxsks", chanconfig },
+	{ "fxols", chanconfig },
+	{ "fxogs", chanconfig },
+	{ "fxoks", chanconfig },
+	{ "rawhdlc", chanconfig },
+	{ "nethdlc", chanconfig },
+	{ "fcshdlc", chanconfig },
+	{ "dchan", chanconfig },
+	{ "bchan", chanconfig },
+	{ "indclear", chanconfig },
+	{ "clear", chanconfig },
+	{ "unused", chanconfig },
+	{ "cas", chanconfig },
+	{ "user", chanconfig },
+	{ "alaw", setlaw },
+	{ "mulaw", setlaw },
+	{ "deflaw", setlaw },
+};
+
+static char *readline()
+{
+	static char buf[256];
+	char *c;
+	do {
+		if (!fgets(buf, sizeof(buf), cf)) 
+			return NULL;
+		/* Strip comments */
+		c = strchr(buf, '#');
+		if (c)
+			*c = '\0';
+		trim(buf);
+		lineno++;
+	} while (!strlen(buf));
+	return buf;
+}
+
+static void usage(char *argv0, int exitcode)
+{
+	char *c;
+	c = strrchr(argv0, '/');
+	if (!c)
+		c = argv0;
+	else
+		c++;
+	fprintf(stderr, 
+		"Usage: %s [options]\n"
+		"    Valid options are:\n"
+		"  -c <filename>     -- Use <filename> instead of " CONFIG_FILENAME "\n"
+		"  -h                -- Generate this help statement\n"
+		"  -v                -- Verbose (more -v's means more verbose)\n"
+		"  -t                -- Test mode only, do not apply\n"
+		"  -s                -- Shutdown spans only\n"
+	,c);
+	exit(exitcode);
+}
+
+int main(int argc, char *argv[])
+{
+	char c;
+	char *buf;
+	char *key, *value;
+	int x,found;
+	int fd;
+	while((c = getopt(argc, argv, "hc:vs")) != -1) {
+		switch(c) {
+		case 'c':
+			filename=optarg;
+			break;
+		case 'h':
+			usage(argv[0], 0);
+			break;
+		case '?':
+			usage(argv[0], 1);
+			break;
+		case 'v':
+			verbose++;
+			break;
+		case 't':
+			fo_real = 0;
+			break;
+		case 's':
+			stopmode = 1;
+			break;
+		default:
+		}
+	}
+	cf = fopen(filename, "r");
+	if (cf) {
+		while((buf = readline())) {
+			if (debug & DEBUG_READER) 
+				fprintf(stderr, "Line %d: %s\n", lineno, buf);
+			key = value = buf;
+			while(value && *value && (*value != '=')) value++;
+			if (value)
+				*value='\0';
+			if (value)
+				value++;
+			while(value && *value && (*value < 33)) value++;
+			if (*value) {
+				trim(key);
+				if (debug & DEBUG_PARSER)
+					fprintf(stderr, "Keyword: [%s], Value: [%s]\n", key, value);
+			} else
+				error("Syntax error.  Should be <keyword>=<value>\n");
+			found=0;
+			for (x=0;x<sizeof(handlers) / sizeof(handlers[0]);x++) {
+				if (!strcasecmp(key, handlers[x].keyword)) {
+					found++;
+					handlers[x].func(key, value);
+					break;
+				}
+			}
+			if (!found) 
+				error("Unknown keyword '%s'\n", key);
+		}
+		if (debug & DEBUG_READER)
+			fprintf(stderr, "<End of File>\n");
+		fclose(cf);
+	} else {
+		error("Unable to open configuration file '%s'\n", filename);
+	}
+
+	if (!errcnt) {
+		if (verbose) {
+			printconfig();
+		}
+		if (fo_real) {
+			if (debug & DEBUG_APPLY) {
+				printf("About to open Master device\n");
+				fflush(stdout);
+			}
+			fd = open(MASTER_DEVICE, O_RDWR);
+			if (fd < 0) 
+				error("Unable to open master device '%s'\n", MASTER_DEVICE);
+			else {
+				for (x=0;x<numdynamic;x++) {
+					/* destroy them all */
+					ioctl(fd, ZT_DYNAMIC_DESTROY, &zds[x]);
+				}
+				if (stopmode) {
+					for (x=0;x<spans;x++) {
+						if (ioctl(fd, ZT_SHUTDOWN, &lc[x].span)) {
+							fprintf(stderr, "Zaptel shutdown failed: %s\n", strerror(errno));
+							close(fd);
+							exit(1);
+						}
+					}
+				} else {
+					for (x=0;x<spans;x++) {
+						if (ioctl(fd, ZT_SPANCONFIG, lc + x)) {
+							fprintf(stderr, "ZT_SPANCONFIG failed on span %d: %s (%d)\n", lc[x].span, strerror(errno), errno);
+							close(fd);
+							exit(1);
+						}
+					}
+					for (x=0;x<numdynamic;x++) {
+						if (ioctl(fd, ZT_DYNAMIC_CREATE, &zds[x])) {
+							fprintf(stderr, "Zaptel dynamic span creation failed: %s\n", strerror(errno));
+							close(fd);
+							exit(1);
+						}
+					}
+					for (x=1;x<ZT_MAX_CHANNELS;x++) {
+						if (debug & DEBUG_APPLY) {
+							printf("Configuring device %d\n", x);
+							fflush(stdout);
+						}
+						if (cc[x].sigtype) {
+							if (ioctl(fd, ZT_CHANCONFIG, &cc[x]) == -1) {
+								fprintf(stderr, "ZT_CHANCONFIG failed on channel %d: %s (%d)\n", x, strerror(errno), errno);
+								close(fd);
+								exit(1);
+							}
+						}
+					}
+					for (x=0;x<numzones;x++) {
+						if (debug & DEBUG_APPLY) {
+							printf("Loading tone zone for %s\n", zonestoload[x]);
+							fflush(stdout);
+						}
+						if (tone_zone_register(fd, zonestoload[x]))
+							error("Unable to register tone zone '%s'\n", zonestoload[x]);
+					}
+					if (debug & DEBUG_APPLY) {
+						printf("Doing startup\n");
+						fflush(stdout);
+					}
+					if (deftonezone > -1) {
+						if (ioctl(fd, ZT_DEFAULTZONE, &deftonezone)) {
+							fprintf(stderr, "ZT_DEFAULTZONE failed: %s (%d)\n", strerror(errno), errno);
+							close(fd);
+							exit(1);
+						}
+					}
+					for (x=0;x<spans;x++) {
+						if (ioctl(fd, ZT_STARTUP, &lc[x].span)) {
+							fprintf(stderr, "Zaptel startup failed: %s\n", strerror(errno));
+							close(fd);
+							exit(1);
+						}
+					}
+					for (x=1;x<ZT_MAX_CHANNELS;x++) {
+						if ((sf[x].rxp1 || sf[x].txtone))
+						{
+							if (ioctl(fd, ZT_SFCONFIG, &sf[x]) == -1) {
+								fprintf(stderr, "ZT_SFCONFIG failed on channel %d: %s (%d)\n", x, strerror(errno), errno);
+								close(fd);
+								exit(1);
+							}
+						}
+					}
+				}
+				close(fd);
+			}
+		}
+	} else {
+		fprintf(stderr, "\n%d error(s) detected\n\n", errcnt);
+		exit(1);
+	}
+	exit(0);
+}