--- /dev/null
+/*
+ * $Id$
+ */
+
+/*
+ * asc2log.c - convert ASC logfile to compact CAN frame logfile
+ *
+ * Copyright (c) 2002-2007 Volkswagen Group Electronic Research
+ * 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, the following disclaimer and
+ * the referenced file 'COPYING'.
+ * 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.
+ * 3. Neither the name of Volkswagen nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * Alternatively, provided that this notice is retained in full, this
+ * software may be distributed under the terms of the GNU General
+ * Public License ("GPL") version 2 as distributed in the 'COPYING'
+ * file from the main directory of the linux kernel source.
+ *
+ * The provided data structures and external interfaces from this code
+ * are not restricted to be used by modules with a GPL compatible license.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
+ * OWNER 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.
+ *
+ * Send feedback to <socketcan-users@lists.berlios.de>
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <sys/time.h>
+#define __USE_XOPEN /* supress warning for strptime */
+#include <time.h>
+#include <libgen.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <locale.h>
+
+#include <net/if.h>
+#include <linux/can.h>
+#include <linux/can/error.h>
+
+#include "lib.h"
+
+extern int optind, opterr, optopt;
+
+void print_usage(char *prg)
+{
+ fprintf(stderr, "Usage: %s\n", prg);
+ fprintf(stderr, "Options: -I <infile> (default stdin)\n");
+ fprintf(stderr, " -O <outfile> (default stdout)\n");
+}
+
+void prframe(FILE *file, struct timeval *tv, int dev, struct can_frame *cf) {
+
+ fprintf(file, "(%ld.%06ld) ", tv->tv_sec, tv->tv_usec);
+ if (dev > 0)
+ fprintf(file, "can%d ", dev-1);
+ else
+ fprintf(file, "canX ");
+ fprint_canframe(file, cf, "\n", 0);
+}
+
+void get_can_id(struct can_frame *cf, char *idstring, int base) {
+
+ if (idstring[strlen(idstring)-1] == 'x') {
+ cf->can_id = CAN_EFF_FLAG;
+ idstring[strlen(idstring)-1] = 0;
+ } else
+ cf->can_id = 0;
+
+ cf->can_id |= strtoul(idstring, NULL, base);
+}
+
+void calc_tv(struct timeval *tv, struct timeval *read_tv,
+ struct timeval *date_tv, char timestamps, int dplace) {
+
+ if (dplace == 4) /* shift values having only 4 decimal places */
+ read_tv->tv_usec *= 100; /* and need for 6 */
+
+ if (timestamps == 'a') { /* absolute */
+
+ tv->tv_sec = date_tv->tv_sec + read_tv->tv_sec;
+ tv->tv_usec = date_tv->tv_usec + read_tv->tv_usec;
+
+ } else { /* relative */
+
+ if (((!tv->tv_sec) && (!tv->tv_usec)) &&
+ (date_tv->tv_sec || date_tv->tv_usec)) {
+ tv->tv_sec = date_tv->tv_sec; /* initial date/time */
+ tv->tv_usec = date_tv->tv_usec;
+ }
+
+ tv->tv_sec += read_tv->tv_sec;
+ tv->tv_usec += read_tv->tv_usec;
+ }
+
+ if (tv->tv_usec > 1000000) {
+ tv->tv_usec -= 1000000;
+ tv->tv_sec++;
+ }
+}
+
+int get_date(struct timeval *tv, char *date) {
+
+ char ctmp[10];
+ int itmp;
+
+ struct tm tms;
+
+ if (sscanf(date, "%9s %d %9s %9s %d", ctmp, &itmp, ctmp, ctmp, &itmp) == 5) {
+ /* assume EN/US date due to existing am/pm field */
+
+ if (!setlocale(LC_TIME, "en_US"))
+ return 1;
+
+ if (!strptime(date, "%B %d %r %Y", &tms))
+ return 1;
+
+ } else {
+ /* assume DE date due to non existing am/pm field */
+
+ if (sscanf(date, "%9s %d %9s %d", ctmp, &itmp, ctmp, &itmp) != 4)
+ return 1;
+
+ if (!setlocale(LC_TIME, "de_DE"))
+ return 1;
+
+ if (!strptime(date, "%B %d %T %Y", &tms))
+ return 1;
+ }
+
+ //printf("h %d m %d s %d d %d m %d y %d\n",
+ //tms.tm_hour, tms.tm_min, tms.tm_sec,
+ //tms.tm_mday, tms.tm_mon+1, tms.tm_year+1900);
+
+ tv->tv_sec = mktime(&tms);
+
+ if (tv->tv_sec < 0)
+ return 1;
+
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ char buf[100], tmp1[100], tmp2[100];
+
+ FILE *infile = stdin;
+ FILE *outfile = stdout;
+ static int verbose;
+ struct can_frame cf;
+ static struct timeval tv; /* current frame timestamp */
+ static struct timeval read_tv; /* frame timestamp from ASC file */
+ static struct timeval date_tv; /* date of the ASC file */
+ static int dplace; /* decimal place 4 or 6 or uninitialized */
+ static char base; /* 'd'ec or 'h'ex */
+ static char timestamps; /* 'a'bsolute or 'r'elative */
+
+ int interface;
+ char rtr;
+ int dlc = 0;
+ int data[8];
+ int i, found, opt;
+
+ while ((opt = getopt(argc, argv, "I:O:v")) != -1) {
+ switch (opt) {
+ case 'I':
+ infile = fopen(optarg, "r");
+ if (!infile) {
+ perror("infile");
+ return 1;
+ }
+ break;
+
+ case 'O':
+ outfile = fopen(optarg, "w");
+ if (!outfile) {
+ perror("outfile");
+ return 1;
+ }
+ break;
+
+ case 'v':
+ verbose = 1;
+ break;
+
+ default:
+ fprintf(stderr, "Unknown option %c\n", opt);
+ print_usage(basename(argv[0]));
+ return 1;
+ break;
+ }
+ }
+
+
+ while (fgets(buf, 99, infile)) {
+
+ if (!dplace) { /* the representation of a valid CAN frame not known */
+
+ /* check for base and timestamp entries in the header */
+ if ((!base) &&
+ (sscanf(buf, "base %s timestamps %s", tmp1, tmp2) == 2)) {
+ base = tmp1[0];
+ timestamps = tmp2[0];
+ if (verbose)
+ printf("base %c timestamps %c\n", base, timestamps);
+ if ((base != 'h') && (base != 'd')) {
+ printf("invalid base %s (must be 'hex' or 'dez')!\n",
+ tmp1);
+ return 1;
+ }
+ if ((timestamps != 'a') && (timestamps != 'r')) {
+ printf("invalid timestamps %s (must be 'absolute'"
+ " or 'relative')!\n", tmp2);
+ return 1;
+ }
+ continue;
+ }
+
+ /* check for the original logging date in the header */
+ if ((!date_tv.tv_sec) &&
+ (!strncmp(buf, "date", 4))) {
+
+ if (get_date(&date_tv, &buf[9])) { /* skip 'date day ' */
+ fprintf(stderr, "Not able to determine original log "
+ "file date. Using current time.\n");
+ /* use current date as default */
+ gettimeofday(&date_tv, NULL);
+ }
+ if (verbose)
+ printf("date %ld => %s", date_tv.tv_sec, ctime(&date_tv.tv_sec));
+ continue;
+ }
+
+ /* check for decimal places length in valid CAN frames */
+ if (sscanf(buf, "%ld.%s %d ", &tv.tv_sec, tmp2, &i) == 3){
+ dplace = strlen(tmp2);
+ if (verbose)
+ printf("decimal place %d, e.g. '%s'\n", dplace, tmp2);
+ if ((dplace != 4) && (dplace != 6)) {
+ printf("invalid dplace %d (must be 4 or 6)!\n", dplace);
+ return 1;
+ }
+ } else
+ continue; /* dplace remains zero until first found CAN frame */
+ }
+
+ /* the representation of a valid CAN frame is known here */
+ /* so try to get CAN frames and ErrorFrames and convert them */
+
+ /* 0.002367 1 390x Rx d 8 17 00 14 00 C0 00 08 00 */
+
+ found = 0; /* found valid CAN frame ? */
+
+ if (base == 'h') { /* check for CAN frames with hexadecimal values */
+
+ if (sscanf(buf, "%ld.%ld %d %s %*s %c %d %x %x %x %x %x %x %x %x",
+ &read_tv.tv_sec, &read_tv.tv_usec, &interface,
+ tmp1, &rtr, &dlc,
+ &data[0], &data[1], &data[2], &data[3],
+ &data[4], &data[5], &data[6], &data[7]
+ ) == dlc + 6 ) {
+
+ found = 1;
+ get_can_id(&cf, tmp1, 16);
+ }
+
+ } else { /* check for CAN frames with decimal values */
+
+ if (sscanf(buf, "%ld.%ld %d %s %*s %c %d %d %d %d %d %d %d %d %d",
+ &read_tv.tv_sec, &read_tv.tv_usec, &interface,
+ tmp1, &rtr, &dlc,
+ &data[0], &data[1], &data[2], &data[3],
+ &data[4], &data[5], &data[6], &data[7]
+ ) == dlc + 6 ) {
+
+ found = 1;
+ get_can_id(&cf, tmp1, 10);
+ }
+ }
+
+ if (found) {
+ if (rtr == 'r')
+ cf.can_id |= CAN_RTR_FLAG;
+
+ cf.can_dlc = dlc & 0x0FU;
+ for (i=0; i<dlc; i++)
+ cf.data[i] = data[i] & 0xFFU;
+
+ calc_tv(&tv, &read_tv, &date_tv, timestamps, dplace);
+ prframe(outfile, &tv, interface, &cf);
+ fflush(outfile);
+ continue;
+ }
+
+ /* check for ErrorFrames */
+ if (sscanf(buf, "%ld.%ld %d %s",
+ &read_tv.tv_sec, &read_tv.tv_usec,
+ &interface, tmp1) == 4) {
+
+ if (!strncmp(tmp1, "ErrorFrame", strlen("ErrorFrame"))) {
+
+ memset(&cf, 0, sizeof(cf));
+ /* do not know more than 'Error' */
+ cf.can_id = (CAN_ERR_FLAG | CAN_ERR_BUSERROR);
+ cf.can_dlc = CAN_ERR_DLC;
+
+ calc_tv(&tv, &read_tv, &date_tv, timestamps, dplace);
+ prframe(outfile, &tv, interface, &cf);
+ fflush(outfile);
+ }
+ }
+ }
+ fclose(outfile);
+ return 0;
+}
projects / can-utils.git / blobdiff