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35994ac2c0
o getopt returns -1 rather than EOF on errors o getopt returns '?' for characters it doesn't know about, so don't include them in the getopt options string.
810 lines
19 KiB
C
810 lines
19 KiB
C
/*
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* Copyright (c) 1996, 1999 Hellmuth Michaelis. All rights reserved.
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*
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* Copyright (c) 1996 Gary Jennejohn. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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* 4. Altered versions must be plainly marked as such, and must not be
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* misrepresented as being the original software and/or documentation.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*---------------------------------------------------------------------------*
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*
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* trace.c - print traces of D (B) channel activity for isdn4bsd
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* -------------------------------------------------------------
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*
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* $Id: trace.c,v 1.4 1999/05/23 23:24:21 imp Exp $
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*
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* last edit-date: [Sun Feb 14 10:23:28 1999]
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*
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* -hm rewriting for isic and new trace format
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* -hm new option -f, use automatic name for -o
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* -hm changed default option setting
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* -hm multi unit support
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* -hm analyzer functionality
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* -hm binary record/playback
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* -hm -p option
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* -hm cleanup
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* -hm adding date to timestamp field
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* -hm reopen files on SIGUSR1 for rotation
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* -hm Joerg reported a bug with commandline options
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* -hm I.430 INFO signals from layer 1
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*
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*---------------------------------------------------------------------------*/
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#include "trace.h"
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unsigned char buf[BSIZE];
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FILE *Fout = NULL;
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FILE *BP = NULL;
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int outflag = 1;
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int header = 1;
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int print_q921 = 1;
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int unit = 0;
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int dchan = 0;
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int bchan = 0;
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int traceon = 0;
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int analyze = 0;
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int Rx = RxUDEF;
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int Tx = TxUDEF;
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int f;
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int Bopt = 0;
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int Popt = 0;
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int bpopt = 0;
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int info = 0;
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int Fopt = 0;
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static char outfilename[1024];
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static char BPfilename[1024];
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static struct stat fst;
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static void dumpbuf( int n, unsigned char *buf, i4b_trace_hdr_t *hdr, int raw );
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static int switch_driver( int value, int rx, int tx );
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static void usage( void );
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static void exit_hdl( void );
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static void reopenfiles( int );
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/*---------------------------------------------------------------------------*
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* usage instructions
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*---------------------------------------------------------------------------*/
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void
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usage(void)
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{
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fprintf(stderr,"\n");
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fprintf(stderr,"isdntrace - i4b package ISDN trace facility for passive cards (%02d.%02d.%d)\n", VERSION, REL, STEP);
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fprintf(stderr,"usage: isdntrace -a -b -d -f <file> -h -i -l -n <val> -o -p <file> -r -u <unit>\n");
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fprintf(stderr," -B -F -P -R <unit> -T <unit>\n");
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fprintf(stderr," -a analyzer mode ................................... (default off)\n");
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fprintf(stderr," -b switch B channel trace on ....................... (default off)\n");
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fprintf(stderr," -d switch D channel trace off ....................... (default on)\n");
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fprintf(stderr," -f <file> write output to file filename ............ (default %s0)\n", TRACE_FILE_NAME);
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fprintf(stderr," -h don't print header for each message ............. (default off)\n");
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fprintf(stderr," -i print I.430 (layer 1) INFO signals .............. (default off)\n");
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fprintf(stderr," -l don't decode low layer Q.921 messages ........... (default off)\n");
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fprintf(stderr," -n <val> process packet if it is longer than <val> octetts . (default 0)\n");
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fprintf(stderr," -o don't write output to a file .................... (default off)\n");
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fprintf(stderr," -p <file> specify filename for -B and -P ........ (default %s0)\n", BIN_FILE_NAME);
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fprintf(stderr," -r don't print raw hex/ASCII dump of protocol ...... (default off)\n");
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fprintf(stderr," -u <unit> specify controller unit number ............... (default unit 0)\n");
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fprintf(stderr," -B write binary trace data to file filename ........ (default off)\n");
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fprintf(stderr," -F with -P and -p: wait for more data at EOF ....... (default off)\n");
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fprintf(stderr," -P playback from binary trace data file ............ (default off)\n");
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fprintf(stderr," -R <unit> analyze Rx controller unit number (for -a) ... (default unit %d)\n", RxUDEF);
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fprintf(stderr," -T <unit> analyze Tx controller unit number (for -a) ... (default unit %d)\n", TxUDEF);
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fprintf(stderr,"\n");
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exit(1);
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}
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/*---------------------------------------------------------------------------*
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* main
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*---------------------------------------------------------------------------*/
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int
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main(int argc, char *argv[])
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{
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extern int optind;
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extern int opterr;
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extern char *optarg;
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char devicename[80];
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char headerbuf[256];
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int n;
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int c;
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char *b;
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int enable_trace = TRACE_D_RX | TRACE_D_TX;
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char *outfile = TRACE_FILE_NAME;
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char *binfile = BIN_FILE_NAME;
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int outfileset = 0;
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int raw = 1;
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int noct = -1;
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time_t tm;
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i4b_trace_hdr_t *ithp = NULL;
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int l;
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static struct stat fstnew;
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b = &buf[sizeof(i4b_trace_hdr_t)];
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while( (c = getopt(argc, argv, "abdf:hiln:op:ru:BFPR:T:")) != -1)
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{
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switch(c)
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{
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case 'a':
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analyze = 1;
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break;
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case 'b':
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enable_trace |= (TRACE_B_RX | TRACE_B_TX);
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break;
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case 'd':
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enable_trace &= (~(TRACE_D_TX | TRACE_D_RX));
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break;
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case 'o':
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outflag = 0;
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break;
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case 'f':
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outfile = optarg;
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outfileset = 1;
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break;
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case 'n':
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noct = atoi(optarg);
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break;
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case 'h':
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header = 0;
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break;
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case 'i':
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enable_trace |= TRACE_I;
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info = 1;
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break;
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case 'l':
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print_q921 = 0;
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break;
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case 'p':
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binfile = optarg;
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bpopt = 1;
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break;
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case 'r':
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raw = 0;
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break;
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case 'u':
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unit = atoi(optarg);
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if(unit < 0 || unit >= MAX_CONTROLLERS)
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usage();
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break;
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case 'B':
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Bopt = 1;
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break;
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case 'F':
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Fopt = 1;
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break;
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case 'P':
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Popt = 1;
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break;
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case 'R':
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Rx = atoi(optarg);
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if(Rx < 0 || Rx >= MAX_CONTROLLERS)
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usage();
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break;
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case 'T':
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Tx = atoi(optarg);
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if(Tx < 0 || Tx >= MAX_CONTROLLERS)
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usage();
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break;
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case '?':
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default:
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usage();
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break;
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}
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}
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if(enable_trace == 0)
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usage();
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if(Bopt && Popt)
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usage();
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atexit(exit_hdl);
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if(Bopt)
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{
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if(bpopt)
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sprintf(BPfilename, "%s", binfile);
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else
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sprintf(BPfilename, "%s%d", BIN_FILE_NAME, unit);
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if((BP = fopen(BPfilename, "r")) != NULL)
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{
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char buffer[1024];
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fclose(BP);
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sprintf(buffer, "%s%s", BPfilename, TRACE_FILE_NAME_BAK);
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rename(BPfilename, buffer);
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}
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if((BP = fopen(BPfilename, "w")) == NULL)
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{
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char buffer[80];
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sprintf(buffer, "Error opening file [%s]", BPfilename);
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perror(buffer);
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exit(1);
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}
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if((setvbuf(BP, (char *)NULL, _IONBF, 0)) != 0)
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{
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char buffer[80];
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sprintf(buffer, "Error setting file [%s] to unbuffered", BPfilename);
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perror(buffer);
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exit(1);
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}
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}
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if(Popt)
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{
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if(bpopt)
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sprintf(BPfilename, "%s", binfile);
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else
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sprintf(BPfilename, "%s%d", BIN_FILE_NAME, unit);
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if((BP = fopen(BPfilename, "r")) == NULL)
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{
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char buffer[80];
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sprintf(buffer, "Error opening file [%s]", BPfilename);
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perror(buffer);
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exit(1);
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}
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if(Fopt)
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{
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if(fstat(fileno(BP), &fst))
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{
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char buffer[80];
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sprintf(buffer, "Error fstat file [%s]", BPfilename);
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perror(buffer);
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exit(1);
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}
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}
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}
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else
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{
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sprintf(devicename, "%s%d", I4BTRC_DEVICE, unit);
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if((f = open(devicename, O_RDWR)) < 0)
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{
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char buffer[80];
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sprintf(buffer, "Error opening trace device [%s]", devicename);
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perror(buffer);
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exit(1);
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}
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}
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if(outflag)
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{
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if(outfileset == 0)
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sprintf(outfilename, "%s%d", TRACE_FILE_NAME, unit);
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else
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strcpy(outfilename, outfile);
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if((Fout = fopen(outfilename, "r")) != NULL)
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{
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char buffer[1024];
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fclose(Fout);
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sprintf(buffer, "%s%s", outfilename, TRACE_FILE_NAME_BAK);
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rename(outfilename, buffer);
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}
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if((Fout = fopen(outfilename, "w")) == NULL)
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{
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char buffer[80];
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sprintf(buffer, "Error opening file [%s]", outfilename);
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perror(buffer);
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exit(1);
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}
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if((setvbuf(Fout, (char *)NULL, _IONBF, 0)) != 0)
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{
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char buffer[80];
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sprintf(buffer, "Error setting file [%s] to unbuffered", outfile);
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perror(buffer);
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exit(1);
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}
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}
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if((setvbuf(stdout, (char *)NULL, _IOLBF, 0)) != 0)
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{
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char buffer[80];
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sprintf(buffer, "Error setting stdout to line-buffered");
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perror(buffer);
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exit(1);
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}
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if(!Popt)
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{
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if((switch_driver(enable_trace, Rx, Tx)) == -1)
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exit(1);
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else
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traceon = 1;
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}
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signal(SIGHUP, SIG_IGN); /* ignore hangup signal */
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signal(SIGUSR1, reopenfiles); /* rotate logfile(s) */
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time(&tm);
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if(analyze)
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{
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sprintf(headerbuf, "\n==== isdnanalyze controller rx #%d - tx #%d ==== started %s",
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Rx, Tx, ctime(&tm));
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}
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else
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{
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sprintf(headerbuf, "\n=========== isdntrace controller #%d =========== started %s",
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unit, ctime(&tm));
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}
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printf("%s", headerbuf);
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if(outflag)
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fprintf(Fout, "%s", headerbuf);
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for (;;)
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{
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if(Popt == 0)
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{
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n = read(f, buf, BSIZE);
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if(Bopt)
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{
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if((fwrite(buf, 1, n, BP)) != n)
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{
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char buffer[80];
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sprintf(buffer, "Error writing file [%s]", BPfilename);
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perror(buffer);
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exit(1);
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}
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}
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n -= sizeof(i4b_trace_hdr_t);
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}
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else
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{
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again:
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if((fread(buf, 1, sizeof(i4b_trace_hdr_t), BP)) != sizeof(i4b_trace_hdr_t))
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{
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if(feof(BP))
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{
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if(Fopt)
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{
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if(ferror(BP))
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{
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char buffer[80];
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sprintf(buffer, "Error reading hdr from file [%s]", BPfilename);
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perror(buffer);
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exit(1);
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}
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usleep(250000);
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clearerr(BP);
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if(stat(BPfilename, &fstnew) != -1)
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{
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if((fst.st_ino != fstnew.st_ino) ||
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(fstnew.st_nlink == 0))
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{
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if((BP = freopen(BPfilename, "r", BP)) == NULL)
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{
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char buffer[80];
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sprintf(buffer, "Error reopening file [%s]", BPfilename);
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perror(buffer);
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exit(1);
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}
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stat(BPfilename, &fst);
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}
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}
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goto again;
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}
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else
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{
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printf("\nEnd of playback input file reached.\n");
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exit(0);
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}
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}
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else
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{
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char buffer[80];
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sprintf(buffer, "Error reading hdr from file [%s]", BPfilename);
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perror(buffer);
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exit(1);
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}
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}
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ithp = (i4b_trace_hdr_t *)buf;
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l = ithp->length - sizeof(i4b_trace_hdr_t);
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if((n = fread(buf+sizeof(i4b_trace_hdr_t), 1, l , BP)) != l)
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{
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char buffer[80];
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sprintf(buffer, "Error reading data from file [%s]", BPfilename);
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perror(buffer);
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exit(1);
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}
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}
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if((n > 0) && (n > noct))
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{
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dumpbuf(n, b, (i4b_trace_hdr_t *)buf, raw);
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}
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}
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}
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/*---------------------------------------------------------------------------*
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* format header into static buffer, return buffer address
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*---------------------------------------------------------------------------*/
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char *
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fmt_hdr(i4b_trace_hdr_t *hdr, int frm_len)
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{
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struct tm *s;
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static char hbuf[256];
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int i = 0;
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s = localtime(&(hdr->time.tv_sec));
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if(hdr->type == TRC_CH_I) /* Layer 1 INFO's */
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{
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sprintf(hbuf,"\n-- %s - unit:%d ---------------- time:%2.2d.%2.2d %2.2d:%2.2d:%2.2d.%6u ",
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((hdr->dir) ? "NT->TE" : "TE->NT"),
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hdr->unit,
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s->tm_mday,
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s->tm_mon + 1,
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s->tm_hour,
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s->tm_min,
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s->tm_sec,
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(u_int32_t)hdr->time.tv_usec);
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}
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else
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{
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if(hdr->trunc > 0)
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{
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sprintf(hbuf,"\n-- %s - unit:%d - frame:%6.6u - time:%2.2d.%2.2d %2.2d:%2.2d:%2.2d.%6u - length:%d (%d) ",
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((hdr->dir) ? "NT->TE" : "TE->NT"),
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hdr->unit,
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hdr->count,
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s->tm_mday,
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s->tm_mon + 1,
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s->tm_hour,
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s->tm_min,
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s->tm_sec,
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(u_int32_t)hdr->time.tv_usec,
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frm_len,
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hdr->trunc);
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}
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else
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{
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sprintf(hbuf,"\n-- %s - unit:%d - frame:%6.6u - time:%2.2d.%2.2d %2.2d:%2.2d:%2.2d.%6u - length:%d ",
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((hdr->dir) ? "NT->TE" : "TE->NT"),
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hdr->unit,
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hdr->count,
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s->tm_mday,
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s->tm_mon + 1,
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s->tm_hour,
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s->tm_min,
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s->tm_sec,
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(u_int32_t)hdr->time.tv_usec,
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frm_len);
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}
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}
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for(i=strlen(hbuf); i <= NCOLS;)
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hbuf[i++] = '-';
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hbuf[i++] = '\n';
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hbuf[i] = '\0';
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return(hbuf);
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}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* decode protocol and output to file(s)
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
dumpbuf(int n, unsigned char *buf, i4b_trace_hdr_t *hdr, int raw)
|
|
{
|
|
static char l1buf[128];
|
|
static unsigned char l2buf[32000];
|
|
static unsigned char l3buf[32000];
|
|
int cnt;
|
|
int nsave = n;
|
|
char *pbuf;
|
|
int i, j;
|
|
|
|
l1buf[0] = '\0';
|
|
l2buf[0] = '\0';
|
|
l3buf[0] = '\0';
|
|
|
|
switch(hdr->type)
|
|
{
|
|
case TRC_CH_I: /* Layer 1 INFO's */
|
|
pbuf = &l1buf[0];
|
|
|
|
switch(buf[0])
|
|
{
|
|
case INFO0:
|
|
sprintf((pbuf+strlen(pbuf)),"I430: INFO0 (No Signal)\n");
|
|
break;
|
|
|
|
case INFO1_8:
|
|
sprintf((pbuf+strlen(pbuf)),"I430: INFO1 (Activation Request, Priority = 8, from TE)\n");
|
|
break;
|
|
|
|
case INFO1_10:
|
|
sprintf((pbuf+strlen(pbuf)),"I430: INFO1 (Activation Request, Priority = 10, from TE)\n");
|
|
break;
|
|
|
|
case INFO2:
|
|
sprintf((pbuf+strlen(pbuf)),"I430: INFO2 (Pending Activation, from NT)\n");
|
|
break;
|
|
|
|
case INFO3:
|
|
sprintf((pbuf+strlen(pbuf)),"I430: INFO3 (Synchronized, from TE)\n");
|
|
break;
|
|
|
|
case INFO4_8:
|
|
sprintf((pbuf+strlen(pbuf)),"I430: INFO4 (Activated, Priority = 8/9, from NT)\n");
|
|
break;
|
|
|
|
case INFO4_10:
|
|
sprintf((pbuf+strlen(pbuf)),"I430: INFO4 (Activated, Priority = 10/11, from NT)\n");
|
|
break;
|
|
|
|
default:
|
|
sprintf((pbuf+strlen(pbuf)),"I430: ERROR, invalid INFO value 0x%x!\n", buf[0]);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case TRC_CH_D: /* D-channel data */
|
|
|
|
cnt = decode_lapd(l2buf, n, buf, hdr->dir, raw, print_q921);
|
|
|
|
n -= cnt;
|
|
buf += cnt;
|
|
|
|
if(n)
|
|
{
|
|
switch(*buf)
|
|
{
|
|
case 0x40:
|
|
case 0x41:
|
|
decode_1tr6(l3buf, n, cnt, buf, raw);
|
|
break;
|
|
|
|
default:
|
|
decode_q931(l3buf, n, cnt, buf, raw);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default: /* B-channel data */
|
|
|
|
pbuf = &l2buf[0];
|
|
|
|
for (i = 0; i < n; i += 16)
|
|
{
|
|
sprintf((pbuf+strlen(pbuf)),"B%d:%.3x ", hdr->type, i);
|
|
|
|
for (j = 0; j < 16; j++)
|
|
if (i + j < n)
|
|
sprintf((pbuf+strlen(pbuf)),"%02x ", buf[i + j]);
|
|
else
|
|
sprintf((pbuf+strlen(pbuf))," ");
|
|
|
|
sprintf((pbuf+strlen(pbuf))," ");
|
|
|
|
for (j = 0; j < 16 && i + j < n; j++)
|
|
if (isprint(buf[i + j]))
|
|
sprintf((pbuf+strlen(pbuf)),"%c", buf[i + j]);
|
|
else
|
|
sprintf((pbuf+strlen(pbuf)),".");
|
|
|
|
sprintf((pbuf+strlen(pbuf)),"\n");
|
|
}
|
|
break;
|
|
}
|
|
|
|
if(header && ((l1buf[0] != '\0' || l2buf[0] != '\0') || (l3buf[0] != 0)))
|
|
{
|
|
char *p;
|
|
p = fmt_hdr(hdr, nsave);
|
|
printf("%s", p);
|
|
if(outflag)
|
|
fprintf(Fout, "%s", p);
|
|
}
|
|
|
|
if(l1buf[0] != '\0')
|
|
{
|
|
printf("%s", l1buf);
|
|
if(outflag)
|
|
fprintf(Fout, "%s", l1buf);
|
|
}
|
|
|
|
if(l2buf[0] != '\0')
|
|
{
|
|
printf("%s", l2buf);
|
|
if(outflag)
|
|
fprintf(Fout, "%s", l2buf);
|
|
}
|
|
|
|
if(l3buf[0] != '\0')
|
|
{
|
|
printf("%s", l3buf);
|
|
if(outflag)
|
|
fprintf(Fout, "%s", l3buf);
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* exit handler function to be called at program exit
|
|
*---------------------------------------------------------------------------*/
|
|
void
|
|
exit_hdl()
|
|
{
|
|
if(traceon)
|
|
switch_driver(TRACE_OFF, Rx, Tx);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* switch driver debugging output on/off
|
|
*---------------------------------------------------------------------------*/
|
|
static int
|
|
switch_driver(int value, int rx, int tx)
|
|
{
|
|
char buffer[80];
|
|
int v = value;
|
|
|
|
if(analyze == 0)
|
|
{
|
|
if(ioctl(f, I4B_TRC_SET, &v) < 0)
|
|
{
|
|
sprintf(buffer, "Error ioctl I4B_TRC_SET, val = %d", v);
|
|
perror(buffer);
|
|
return(-1);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(value == TRACE_OFF)
|
|
{
|
|
if(ioctl(f, I4B_TRC_RESETA, &v) < 0)
|
|
{
|
|
sprintf(buffer, "Error ioctl I4B_TRC_RESETA - ");
|
|
perror(buffer);
|
|
return(-1);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
i4b_trace_setupa_t tsa;
|
|
|
|
tsa.rxunit = rx;
|
|
tsa.rxflags = value;
|
|
tsa.txunit = tx;
|
|
tsa.txflags = value;
|
|
|
|
if(ioctl(f, I4B_TRC_SETA, &tsa) < 0)
|
|
{
|
|
sprintf(buffer, "Error ioctl I4B_TRC_SETA, val = %d", v);
|
|
perror(buffer);
|
|
return(-1);
|
|
}
|
|
}
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* reopen files to support rotating logfile(s) on SIGUSR1
|
|
*
|
|
* based on an idea from Ripley (ripley@nostromo.in-berlin.de)
|
|
*
|
|
* close file and reopen it for append. this will be a nop
|
|
* if the previously opened file hasn't moved but will open
|
|
* a new one otherwise, thus enabling a rotation...
|
|
*
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
reopenfiles(int dummy)
|
|
{
|
|
if(outflag)
|
|
{
|
|
fclose(Fout);
|
|
|
|
if((Fout = fopen(outfilename, "a")) == NULL)
|
|
{
|
|
char buffer[80];
|
|
|
|
sprintf(buffer, "Error re-opening file [%s]", outfilename);
|
|
perror(buffer);
|
|
exit(1);
|
|
}
|
|
|
|
if((setvbuf(Fout, (char *)NULL, _IONBF, 0)) != 0)
|
|
{
|
|
char buffer[80];
|
|
|
|
sprintf(buffer, "Error re-setting file [%s] to unbuffered", outfilename);
|
|
perror(buffer);
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
if(Bopt)
|
|
{
|
|
|
|
fclose(BP);
|
|
|
|
if((BP = fopen(BPfilename, "a")) == NULL)
|
|
{
|
|
char buffer[80];
|
|
|
|
sprintf(buffer, "Error re-opening file [%s]", BPfilename);
|
|
perror(buffer);
|
|
exit(1);
|
|
}
|
|
|
|
if((setvbuf(BP, (char *)NULL, _IONBF, 0)) != 0)
|
|
{
|
|
char buffer[80];
|
|
|
|
sprintf(buffer, "Error re-setting file [%s] to unbuffered", BPfilename);
|
|
perror(buffer);
|
|
exit(1);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* EOF */
|