-/*
- * $Id$
- */
-
/*
* canplayer.c - replay a compact CAN frame logfile to CAN devices
*
* 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'.
+ * 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.
*
* 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.
+ * Public License ("GPL") version 2, in which case the provisions of the
+ * GPL apply INSTEAD OF those given above.
*
* The provided data structures and external interfaces from this code
* are not restricted to be used by modules with a GPL compatible license.
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
- * Send feedback to <socketcan-users@lists.berlios.de>
+ * Send feedback to <linux-can@vger.kernel.org>
*
*/
#include <unistd.h>
#include <net/if.h>
+#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <linux/can.h>
#include "lib.h"
-#define DEFAULT_GAP 1 /* ms */
-#define DEFAULT_LOOPS 1 /* only one replay */
-#define CHANNELS 20 /* anyone using more than 20 CAN interfaces at a time? */
-#define BUFSZ 100 /* for one line in the logfile */
+#define DEFAULT_GAP 1 /* ms */
+#define DEFAULT_LOOPS 1 /* only one replay */
+#define CHANNELS 20 /* anyone using more than 20 CAN interfaces at a time? */
+#define COMMENTSZ 200
+#define BUFSZ (sizeof("(1345212884.318850)") + IFNAMSIZ + 4 + CL_CFSZ + COMMENTSZ) /* for one line in the logfile */
+#define STDOUTIDX 65536 /* interface index for printing on stdout - bigger than max uint16 */
struct assignment {
- char txif[IFNAMSIZ];
- int txifidx;
- char rxif[IFNAMSIZ];
+ char txif[IFNAMSIZ];
+ int txifidx;
+ char rxif[IFNAMSIZ];
};
static struct assignment asgn[CHANNELS];
+const int canfd_on = 1;
extern int optind, opterr, optopt;
void print_usage(char *prg)
{
- fprintf(stderr, "\nUsage: %s <options> [interface assignment]*\n\n", prg);
- fprintf(stderr, "Options: -I <infile> (default stdin)\n");
- fprintf(stderr, " -l <num> "
- "(process input file <num> times)\n"
- " "
- "(Use 'i' for infinite loop - default: %d)\n", DEFAULT_LOOPS);
- fprintf(stderr, " -t (ignore timestamps: "
- "send frames immediately)\n");
- fprintf(stderr, " -g <ms> (gap in milli "
- "seconds - default: %d ms)\n", DEFAULT_GAP);
- fprintf(stderr, " -x (disable local "
- "loopback of sent CAN frames)\n");
- fprintf(stderr, " -v (verbose: print "
- "sent CAN frames)\n\n");
- fprintf(stderr, "Interface assignment: 0..n assignments like "
- "<write-if>=<log-if>\n");
- fprintf(stderr, "e.g. vcan2=can0 ( send frames received from can0 on "
- "vcan2 )\n");
- fprintf(stderr, "No assignments => send frames to the interface(s) they "
- "had been received from.\n\n");
+ fprintf(stderr, "\nUsage: %s <options> [interface assignment]*\n\n", prg);
+ fprintf(stderr, "Options: -I <infile> (default stdin)\n");
+ fprintf(stderr, " -l <num> "
+ "(process input file <num> times)\n"
+ " "
+ "(Use 'i' for infinite loop - default: %d)\n", DEFAULT_LOOPS);
+ fprintf(stderr, " -t (ignore timestamps: "
+ "send frames immediately)\n");
+ fprintf(stderr, " -g <ms> (gap in milli "
+ "seconds - default: %d ms)\n", DEFAULT_GAP);
+ fprintf(stderr, " -s <s> (skip gaps in "
+ "timestamps > 's' seconds)\n");
+ fprintf(stderr, " -x (disable local "
+ "loopback of sent CAN frames)\n");
+ fprintf(stderr, " -v (verbose: print "
+ "sent CAN frames)\n\n");
+ fprintf(stderr, "Interface assignment: 0..n assignments like "
+ "<write-if>=<log-if>\n");
+ fprintf(stderr, "e.g. vcan2=can0 ( send frames received from can0 on "
+ "vcan2 )\n");
+ fprintf(stderr, "extra hook: stdout=can0 ( print logfile line marked with can0 on "
+ "stdout )\n");
+ fprintf(stderr, "No assignments => send frames to the interface(s) they "
+ "had been received from.\n\n");
+ fprintf(stderr, "Lines in the logfile not beginning with '(' (start of "
+ "timestamp) are ignored.\n\n");
}
/* copied from /usr/src/linux/include/linux/time.h ...
*/
static inline int timeval_compare(struct timeval *lhs, struct timeval *rhs)
{
- if (lhs->tv_sec < rhs->tv_sec)
- return -1;
- if (lhs->tv_sec > rhs->tv_sec)
- return 1;
- return lhs->tv_usec - rhs->tv_usec;
+ if (lhs->tv_sec < rhs->tv_sec)
+ return -1;
+ if (lhs->tv_sec > rhs->tv_sec)
+ return 1;
+ return lhs->tv_usec - rhs->tv_usec;
+}
+
+static inline void create_diff_tv(struct timeval *today, struct timeval *diff,
+ struct timeval *log) {
+
+ /* create diff_tv so that log_tv + diff_tv = today_tv */
+ diff->tv_sec = today->tv_sec - log->tv_sec;
+ diff->tv_usec = today->tv_usec - log->tv_usec;
}
static inline int frames_to_send(struct timeval *today, struct timeval *diff,
struct timeval *log)
{
- /* return value <0 when log + diff < today */
+ /* return value <0 when log + diff < today */
- struct timeval cmp;
+ struct timeval cmp;
- cmp.tv_sec = log->tv_sec + diff->tv_sec;
- cmp.tv_usec = log->tv_usec + diff->tv_usec;
+ cmp.tv_sec = log->tv_sec + diff->tv_sec;
+ cmp.tv_usec = log->tv_usec + diff->tv_usec;
+
+ if (cmp.tv_usec > 1000000) {
+ cmp.tv_usec -= 1000000;
+ cmp.tv_sec++;
+ }
- if (cmp.tv_usec > 1000000) {
- cmp.tv_usec -= 1000000;
- cmp.tv_sec++;
- }
+ if (cmp.tv_usec < 0) {
+ cmp.tv_usec += 1000000;
+ cmp.tv_sec--;
+ }
- return timeval_compare(&cmp, today);
+ return timeval_compare(&cmp, today);
}
int get_txidx(char *logif_name) {
- int i;
+ int i;
- for (i=0; i<CHANNELS; i++) {
- if (asgn[i].rxif[0] == 0) /* end of table content */
- break;
- if (strcmp(asgn[i].rxif, logif_name) == 0) /* found device name */
- break;
- }
+ for (i=0; i<CHANNELS; i++) {
+ if (asgn[i].rxif[0] == 0) /* end of table content */
+ break;
+ if (strcmp(asgn[i].rxif, logif_name) == 0) /* found device name */
+ break;
+ }
- if ((i == CHANNELS) || (asgn[i].rxif[0] == 0))
- return 0; /* not found */
+ if ((i == CHANNELS) || (asgn[i].rxif[0] == 0))
+ return 0; /* not found */
- return asgn[i].txifidx; /* return interface index */
+ return asgn[i].txifidx; /* return interface index */
}
char *get_txname(char *logif_name) {
- int i;
+ int i;
- for (i=0; i<CHANNELS; i++) {
- if (asgn[i].rxif[0] == 0) /* end of table content */
- break;
- if (strcmp(asgn[i].rxif, logif_name) == 0) /* found device name */
- break;
- }
+ for (i=0; i<CHANNELS; i++) {
+ if (asgn[i].rxif[0] == 0) /* end of table content */
+ break;
+ if (strcmp(asgn[i].rxif, logif_name) == 0) /* found device name */
+ break;
+ }
- if ((i == CHANNELS) || (asgn[i].rxif[0] == 0))
- return 0; /* not found */
+ if ((i == CHANNELS) || (asgn[i].rxif[0] == 0))
+ return 0; /* not found */
- return asgn[i].txif; /* return interface name */
+ return asgn[i].txif; /* return interface name */
}
int add_assignment(char *mode, int socket, char *txname, char *rxname,
int verbose) {
- struct ifreq ifr;
- int i;
-
- /* find free entry */
- for (i=0; i<CHANNELS; i++) {
- if (asgn[i].txif[0] == 0)
- break;
- }
-
- if (i == CHANNELS) {
- fprintf(stderr, "Assignment table exceeded!\n");
- return 1;
- }
-
- if (strlen(txname) >= IFNAMSIZ) {
- fprintf(stderr, "write-if interface name '%s' too long!", txname);
- return 1;
- }
- strcpy(asgn[i].txif, txname);
-
- if (strlen(rxname) >= IFNAMSIZ) {
- fprintf(stderr, "log-if interface name '%s' too long!", rxname);
- return 1;
- }
- strcpy(asgn[i].rxif, rxname);
-
- strcpy(ifr.ifr_name, txname);
- if (ioctl(socket, SIOCGIFINDEX, &ifr) < 0) {
- perror("SIOCGIFINDEX");
- fprintf(stderr, "write-if interface name '%s' is wrong!\n", txname);
- return 1;
- }
- asgn[i].txifidx = ifr.ifr_ifindex;
-
- if (verbose > 1) /* use -v -v to see this */
- printf("added %s assignment: log-if=%s write-if=%s write-if-idx=%d\n",
- mode, asgn[i].rxif, asgn[i].txif, asgn[i].txifidx);
-
- return 0;
-}
+ struct ifreq ifr;
+ int i;
-int main(int argc, char **argv)
-{
- static char buf[BUFSZ], device[BUFSZ], ascframe[BUFSZ];
- struct sockaddr_can addr;
- static struct can_frame frame;
- static struct timeval today_tv, log_tv, diff_tv;
- struct timespec sleep_ts;
- int s; /* CAN_RAW socket */
- FILE *infile = stdin;
- unsigned long gap = DEFAULT_GAP;
- int use_timestamps = 1;
- static int verbose, opt, delay_loops;
- static int loopback_disable = 0;
- static int infinite_loops = 0;
- static int loops = DEFAULT_LOOPS;
- int assignments; /* assignments defined on the commandline */
- int txidx; /* sendto() interface index */
- int eof, nbytes, i, j;
-
- while ((opt = getopt(argc, argv, "I:l:tg:xv")) != -1) {
- switch (opt) {
- case 'I':
- infile = fopen(optarg, "r");
- if (!infile) {
- perror("infile");
+ /* find free entry */
+ for (i=0; i<CHANNELS; i++) {
+ if (asgn[i].txif[0] == 0)
+ break;
+ }
+
+ if (i == CHANNELS) {
+ fprintf(stderr, "Assignment table exceeded!\n");
return 1;
- }
- break;
-
- case 'l':
- if (optarg[0] == 'i')
- infinite_loops = 1;
- else
- if (!(loops = atoi(optarg))) {
- fprintf(stderr, "Invalid argument for option -l !\n");
- return 1;
- }
- break;
+ }
- case 't':
- use_timestamps = 0;
- break;
+ if (strlen(txname) >= IFNAMSIZ) {
+ fprintf(stderr, "write-if interface name '%s' too long!", txname);
+ return 1;
+ }
+ strcpy(asgn[i].txif, txname);
- case 'g':
- gap = strtoul(optarg, NULL, 10);
- break;
+ if (strlen(rxname) >= IFNAMSIZ) {
+ fprintf(stderr, "log-if interface name '%s' too long!", rxname);
+ return 1;
+ }
+ strcpy(asgn[i].rxif, rxname);
- case 'x':
- loopback_disable = 1;
- break;
+ if (strcmp(txname, "stdout")) {
+ strcpy(ifr.ifr_name, txname);
+ if (ioctl(socket, SIOCGIFINDEX, &ifr) < 0) {
+ perror("SIOCGIFINDEX");
+ fprintf(stderr, "write-if interface name '%s' is wrong!\n", txname);
+ return 1;
+ }
+ asgn[i].txifidx = ifr.ifr_ifindex;
+ } else
+ asgn[i].txifidx = STDOUTIDX;
- case 'v':
- verbose++;
- break;
+ if (verbose > 1) /* use -v -v to see this */
+ printf("added %s assignment: log-if=%s write-if=%s write-if-idx=%d\n",
+ mode, asgn[i].rxif, asgn[i].txif, asgn[i].txifidx);
- default:
- print_usage(basename(argv[0]));
- return 1;
- break;
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ static char buf[BUFSZ], device[BUFSZ], ascframe[BUFSZ];
+ struct sockaddr_can addr;
+ static struct canfd_frame frame;
+ static struct timeval today_tv, log_tv, last_log_tv, diff_tv;
+ struct timespec sleep_ts;
+ int s; /* CAN_RAW socket */
+ FILE *infile = stdin;
+ unsigned long gap = DEFAULT_GAP;
+ int use_timestamps = 1;
+ static int verbose, opt, delay_loops;
+ static unsigned long skipgap;
+ static int loopback_disable = 0;
+ static int infinite_loops = 0;
+ static int loops = DEFAULT_LOOPS;
+ int assignments; /* assignments defined on the commandline */
+ int txidx; /* sendto() interface index */
+ int eof, txmtu, i, j;
+ char *fret;
+
+ while ((opt = getopt(argc, argv, "I:l:tg:s:xv?")) != -1) {
+ switch (opt) {
+ case 'I':
+ infile = fopen(optarg, "r");
+ if (!infile) {
+ perror("infile");
+ return 1;
+ }
+ break;
+
+ case 'l':
+ if (optarg[0] == 'i')
+ infinite_loops = 1;
+ else
+ if (!(loops = atoi(optarg))) {
+ fprintf(stderr, "Invalid argument for option -l !\n");
+ return 1;
+ }
+ break;
+
+ case 't':
+ use_timestamps = 0;
+ break;
+
+ case 'g':
+ gap = strtoul(optarg, NULL, 10);
+ break;
+
+ case 's':
+ skipgap = strtoul(optarg, NULL, 10);
+ if (skipgap < 1) {
+ fprintf(stderr, "Invalid argument for option -s !\n");
+ return 1;
+ }
+ break;
+
+ case 'x':
+ loopback_disable = 1;
+ break;
+
+ case 'v':
+ verbose++;
+ break;
+
+ case '?':
+ default:
+ print_usage(basename(argv[0]));
+ return 1;
+ break;
+ }
}
- }
-
- assignments = argc - optind; /* find real number of user assignments */
-
- if (infile == stdin) { /* no jokes with stdin */
- infinite_loops = 0;
- loops = 1;
- }
-
- if (verbose > 1) /* use -v -v to see this */
- if (infinite_loops)
- printf("infinite_loops\n");
- else
- printf("%d loops\n", loops);
-
- sleep_ts.tv_sec = gap / 1000;
- sleep_ts.tv_nsec = (gap % 1000) * 1000000;
-
- /* open socket */
- if ((s = socket(PF_CAN, SOCK_RAW, CAN_RAW)) < 0) {
- perror("socket");
- return 1;
- }
-
- addr.can_family = AF_CAN;
- addr.can_ifindex = 0;
-
- /* disable unneeded default receive filter on this RAW socket */
- setsockopt(s, SOL_CAN_RAW, CAN_RAW_FILTER, NULL, 0);
-
- if (loopback_disable) {
- int loopback = 0;
-
- setsockopt(s, SOL_CAN_RAW, CAN_RAW_LOOPBACK,
- &loopback, sizeof(loopback));
- }
-
- if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
- perror("bind");
- return 1;
- }
-
- if (assignments) {
- /* add & check user assginments from commandline */
- for (i=0; i<assignments; i++) {
- if (strlen(argv[optind+i]) >= BUFSZ) {
- fprintf(stderr, "Assignment too long!\n");
- print_usage(basename(argv[0]));
- return 1;
- }
- strcpy(buf, argv[optind+i]);
- for (j=0; j<BUFSZ; j++) { /* find '=' in assignment */
- if (buf[j] == '=')
- break;
- }
- if (buf[j] != '=') {
- fprintf(stderr, "'=' missing in assignment!\n");
- print_usage(basename(argv[0]));
- return 1;
- }
- buf[j] = 0; /* cut string in two pieces */
- if (add_assignment("user", s, &buf[0], &buf[j+1], verbose))
- return 1;
+
+ assignments = argc - optind; /* find real number of user assignments */
+
+ if (infile == stdin) { /* no jokes with stdin */
+ infinite_loops = 0;
+ loops = 1;
}
- }
- while (infinite_loops || loops--) {
+ if (verbose > 1) { /* use -v -v to see this */
+ if (infinite_loops)
+ printf("infinite_loops\n");
+ else
+ printf("%d loops\n", loops);
+ }
- if (infile != stdin)
- rewind(infile); /* for each loop */
+ sleep_ts.tv_sec = gap / 1000;
+ sleep_ts.tv_nsec = (gap % 1000) * 1000000;
- if (verbose > 1) /* use -v -v to see this */
- printf (">>>>>>>>> start reading file. remaining loops = %d\n", loops);
+ /* open socket */
+ if ((s = socket(PF_CAN, SOCK_RAW, CAN_RAW)) < 0) {
+ perror("socket");
+ return 1;
+ }
- if (!fgets(buf, BUFSZ-1, infile)) /* read first frame from logfile */
- goto out; /* nothing to read */
+ addr.can_family = AF_CAN;
+ addr.can_ifindex = 0;
- eof = 0;
+ /* disable unneeded default receive filter on this RAW socket */
+ setsockopt(s, SOL_CAN_RAW, CAN_RAW_FILTER, NULL, 0);
- if (sscanf(buf, "(%ld.%ld) %s %s", &log_tv.tv_sec, &log_tv.tv_usec,
- device, ascframe) != 4)
- return 1;
+ /* try to switch the socket into CAN FD mode */
+ setsockopt(s, SOL_CAN_RAW, CAN_RAW_FD_FRAMES, &canfd_on, sizeof(canfd_on));
- if (use_timestamps) { /* throttle sending due to logfile timestamps */
+ if (loopback_disable) {
+ int loopback = 0;
- gettimeofday(&today_tv, NULL);
+ setsockopt(s, SOL_CAN_RAW, CAN_RAW_LOOPBACK,
+ &loopback, sizeof(loopback));
+ }
- /* omit crazy comparations with negative diff_tv */
- if (timeval_compare(&today_tv, &log_tv) < 1) {
- fprintf(stderr, "logfile timestamps newer than time of day!\n");
+ if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
+ perror("bind");
return 1;
- }
+ }
- /* create diff_tv so that log_tv + diff_tv = today_tv */
- diff_tv.tv_sec = today_tv.tv_sec - log_tv.tv_sec;
- diff_tv.tv_usec = today_tv.tv_usec - log_tv.tv_usec;
- if (diff_tv.tv_usec < 0)
- diff_tv.tv_sec--, diff_tv.tv_usec += 1000000;
+ if (assignments) {
+ /* add & check user assginments from commandline */
+ for (i=0; i<assignments; i++) {
+ if (strlen(argv[optind+i]) >= BUFSZ) {
+ fprintf(stderr, "Assignment too long!\n");
+ print_usage(basename(argv[0]));
+ return 1;
+ }
+ strcpy(buf, argv[optind+i]);
+ for (j=0; j<BUFSZ; j++) { /* find '=' in assignment */
+ if (buf[j] == '=')
+ break;
+ }
+ if ((j == BUFSZ) || (buf[j] != '=')) {
+ fprintf(stderr, "'=' missing in assignment!\n");
+ print_usage(basename(argv[0]));
+ return 1;
+ }
+ buf[j] = 0; /* cut string in two pieces */
+ if (add_assignment("user", s, &buf[0], &buf[j+1], verbose))
+ return 1;
+ }
}
- while (!eof) {
+ while (infinite_loops || loops--) {
- while ((!use_timestamps) ||
- (frames_to_send(&today_tv, &diff_tv, &log_tv) < 0)) {
+ if (infile != stdin)
+ rewind(infile); /* for each loop */
- /* log_tv/device/ascframe are valid here */
+ if (verbose > 1) /* use -v -v to see this */
+ printf (">>>>>>>>> start reading file. remaining loops = %d\n", loops);
- if (strlen(device) >= IFNAMSIZ) {
- fprintf(stderr, "log interface name '%s' too long!", device);
- return 1;
+ /* read first non-comment frame from logfile */
+ while ((fret = fgets(buf, BUFSZ-1, infile)) != NULL && buf[0] != '(') {
+ if (strlen(buf) >= BUFSZ-2) {
+ fprintf(stderr, "comment line too long for input buffer\n");
+ return 1;
+ }
}
- txidx = get_txidx(device); /* get ifindex for sending the frame */
-
- if ((!txidx) && (!assignments)) {
- /* ifindex not found and no user assignments */
- /* => assign this device automatically */
- if (add_assignment("auto", s, device, device, verbose))
+ if (!fret)
+ goto out; /* nothing to read */
+
+ eof = 0;
+
+ if (sscanf(buf, "(%ld.%ld) %s %s", &log_tv.tv_sec, &log_tv.tv_usec,
+ device, ascframe) != 4) {
+ fprintf(stderr, "incorrect line format in logfile\n");
return 1;
- txidx = get_txidx(device);
}
- if (txidx) { /* only send to valid CAN devices */
+ if (use_timestamps) { /* throttle sending due to logfile timestamps */
- if (parse_canframe(ascframe, &frame)) {
- fprintf(stderr, "wrong CAN frame format: '%s'!", ascframe);
- return 1;
- }
+ gettimeofday(&today_tv, NULL);
+ create_diff_tv(&today_tv, &diff_tv, &log_tv);
+ last_log_tv = log_tv;
+ }
+
+ while (!eof) {
+
+ while ((!use_timestamps) ||
+ (frames_to_send(&today_tv, &diff_tv, &log_tv) < 0)) {
- addr.can_family = AF_CAN;
- addr.can_ifindex = txidx; /* send via this interface */
+ /* log_tv/device/ascframe are valid here */
+
+ if (strlen(device) >= IFNAMSIZ) {
+ fprintf(stderr, "log interface name '%s' too long!", device);
+ return 1;
+ }
+
+ txidx = get_txidx(device); /* get ifindex for sending the frame */
- nbytes = sendto(s, &frame, sizeof(struct can_frame), 0,
- (struct sockaddr*)&addr, sizeof(addr));
+ if ((!txidx) && (!assignments)) {
+ /* ifindex not found and no user assignments */
+ /* => assign this device automatically */
+ if (add_assignment("auto", s, device, device, verbose))
+ return 1;
+ txidx = get_txidx(device);
+ }
- if (nbytes != sizeof(struct can_frame)) {
- perror("sendto");
- return 1;
- }
+ if (txidx == STDOUTIDX) { /* hook to print logfile lines on stdout */
- if (verbose) {
- printf("%s (%s) ", get_txname(device), device);
- fprint_long_canframe(stdout, &frame, "\n", 1);
- }
- }
+ printf("%s", buf); /* print the line AS-IS without extra \n */
+ fflush(stdout);
- /* read next frame from logfile */
- if (!fgets(buf, BUFSZ-1, infile)) {
- eof = 1; /* this file is completely processed */
- break;
- }
+ } else if (txidx > 0) { /* only send to valid CAN devices */
- if (sscanf(buf, "(%ld.%ld) %s %s", &log_tv.tv_sec, &log_tv.tv_usec,
- device, ascframe) != 4)
- return 1;
+ txmtu = parse_canframe(ascframe, &frame);
+ if (!txmtu) {
+ fprintf(stderr, "wrong CAN frame format: '%s'!", ascframe);
+ return 1;
+ }
+
+ addr.can_family = AF_CAN;
+ addr.can_ifindex = txidx; /* send via this interface */
+
+ if (sendto(s, &frame, txmtu, 0, (struct sockaddr*)&addr, sizeof(addr)) != txmtu) {
+ perror("sendto");
+ return 1;
+ }
- if (use_timestamps) /* save a syscall if possible */
- gettimeofday(&today_tv, NULL);
+ if (verbose) {
+ printf("%s (%s) ", get_txname(device), device);
- } /* while frames_to_send ... */
+ if (txmtu == CAN_MTU)
+ fprint_long_canframe(stdout, &frame, "\n", CANLIB_VIEW_INDENT_SFF, CAN_MAX_DLEN);
+ else
+ fprint_long_canframe(stdout, &frame, "\n", CANLIB_VIEW_INDENT_SFF, CANFD_MAX_DLEN);
+ }
+ }
- if (nanosleep(&sleep_ts, NULL))
- return 1;
+ /* read next non-comment frame from logfile */
+ while ((fret = fgets(buf, BUFSZ-1, infile)) != NULL && buf[0] != '(') {
+ if (strlen(buf) >= BUFSZ-2) {
+ fprintf(stderr, "comment line too long for input buffer\n");
+ return 1;
+ }
+ }
- delay_loops++; /* private statistics */
- gettimeofday(&today_tv, NULL);
+ if (!fret) {
+ eof = 1; /* this file is completely processed */
+ break;
+ }
- } /* while (!eof) */
+ if (sscanf(buf, "(%ld.%ld) %s %s", &log_tv.tv_sec, &log_tv.tv_usec,
+ device, ascframe) != 4) {
+ fprintf(stderr, "incorrect line format in logfile\n");
+ return 1;
+ }
- } /* while (infinite_loops || loops--) */
+ if (use_timestamps) {
+ gettimeofday(&today_tv, NULL);
- out:
+ /* test for logfile timestamps jumping backwards OR */
+ /* if the user likes to skip long gaps in the timestamps */
+ if ((last_log_tv.tv_sec > log_tv.tv_sec) ||
+ (skipgap && labs(last_log_tv.tv_sec - log_tv.tv_sec) > skipgap))
+ create_diff_tv(&today_tv, &diff_tv, &log_tv);
- close(s);
- fclose(infile);
+ last_log_tv = log_tv;
+ }
- if (verbose > 1) /* use -v -v to see this */
- printf("%d delay_loops\n", delay_loops);
+ } /* while frames_to_send ... */
+
+ if (nanosleep(&sleep_ts, NULL))
+ return 1;
+
+ delay_loops++; /* private statistics */
+ gettimeofday(&today_tv, NULL);
+
+ } /* while (!eof) */
+
+ } /* while (infinite_loops || loops--) */
+
+out:
+
+ close(s);
+ fclose(infile);
+
+ if (verbose > 1) /* use -v -v to see this */
+ printf("%d delay_loops\n", delay_loops);
- return 0;
+ return 0;
}
projects / can-utils.git / blobdiff