Added binary output option to candump.c and sprint_long_canframe() in lib.c .

candump.c

@@ -102,6 +102,7 @@ void print_usage(char *prg)
     fprintf(stderr, "  (use CTRL-C to terminate %s)\n\n", prg);
     fprintf(stderr, "Options: -t <type>   (timestamp: (a)bsolute/(d)elta/(z)ero/(A)bsolute w date)\n");
     fprintf(stderr, "         -c          (increment color mode level)\n");
+    fprintf(stderr, "         -i          (binary output - may exceed 80 chars/line)\n");
     fprintf(stderr, "         -a          (enable additional ASCII output)\n");
     fprintf(stderr, "         -s <level>  (silent mode - 1: animation 2: completely silent)\n");
     fprintf(stderr, "         -b <can>    (bridge mode - send received frames to <can>)\n");
@@ -187,7 +188,7 @@ int main(int argc, char **argv)
     unsigned char silent = 0;
     unsigned char silentani = 0;
     unsigned char color = 0;
-    unsigned char ascii = 0;
+    unsigned char view = 0;
     unsigned char log = 0;
     unsigned char logfrmt = 0;
     int opt, ret;
@@ -209,7 +210,7 @@ int main(int argc, char **argv)
     last_tv.tv_sec  = 0;
     last_tv.tv_usec = 0;
 
-    while ((opt = getopt(argc, argv, "t:cas:b:B:lLh?")) != -1) {
+    while ((opt = getopt(argc, argv, "t:cias:b:B:lLh?")) != -1) {
 	switch (opt) {
 	case 't':
 	    timestamp = optarg[0];
@@ -225,8 +226,12 @@ int main(int argc, char **argv)
 	    color++;
 	    break;
 
+	case 'i':
+	    view |= CANLIB_VIEW_BINARY;
+	    break;
+
 	case 'a':
-	    ascii = 1;
+	    view |= CANLIB_VIEW_ASCII;
 	    break;
 
 	case 's':
@@ -544,7 +549,7 @@ int main(int argc, char **argv)
 		printf("%*s", max_devname_len, devname[idx]);
 		printf("%s  ", (color==1)?col_off:"");
 
-		fprint_long_canframe(stdout, &frame, NULL, ascii);
+		fprint_long_canframe(stdout, &frame, NULL, view);
 
 		printf("%s", (color>1)?col_off:"");
 		printf("\n");

lib.c

@@ -57,7 +57,7 @@
 #define DATA_SEPERATOR '.'
 
 #define MAX_CANFRAME      "12345678#01.23.45.67.89.AB.CD.EF"
-#define MAX_LONG_CANFRAME "12345678  [8] 01 23 45 67 89 AB CD EF   '........'"
+#define MAX_LONG_CANFRAME "12345678  [8] 10101010 10101010 10101010 10101010 10101010 10101010 10101010 10101010   '........'"
 
 static int asc2nibble(char c) {
 
@@ -177,21 +177,21 @@ void sprint_canframe(char *buf , struct can_frame *cf, int sep) {
 
 }
 
-void fprint_long_canframe(FILE *stream , struct can_frame *cf, char *eol, int ascii) {
+void fprint_long_canframe(FILE *stream , struct can_frame *cf, char *eol, int view) {
     /* documentation see lib.h */
 
     char buf[sizeof(MAX_LONG_CANFRAME)+1]; /* max length */
 
-    sprint_long_canframe(buf, cf, ascii);
+    sprint_long_canframe(buf, cf, view);
     fprintf(stream, "%s", buf);
     if (eol)
 	fprintf(stream, "%s", eol);
 }
 
-void sprint_long_canframe(char *buf , struct can_frame *cf, int ascii) {
+void sprint_long_canframe(char *buf , struct can_frame *cf, int view) {
     /* documentation see lib.h */
 
-    int i, offset;
+    int i, j, dlen, offset;
 
     if (cf->can_id & CAN_ERR_FLAG) {
 	sprintf(buf, "%8X  ", cf->can_id & (CAN_ERR_MASK|CAN_ERR_FLAG));
@@ -207,26 +207,41 @@ void sprint_long_canframe(char *buf , struct can_frame *cf, int ascii) {
     sprintf(buf+offset, "[%d]", cf->can_dlc);
     offset += 3;
 
-    if (cf->can_id & CAN_RTR_FLAG) /* there are no ERR frames with RTR */
+    if (cf->can_id & CAN_RTR_FLAG) { /* there are no ERR frames with RTR */
 	sprintf(buf+offset, " remote request");
-    else {
+	return;
+    }
+
+    if (view & CANLIB_VIEW_BINARY) {
+	dlen = 9; /* _10101010 */
+	for (i = 0; i < cf->can_dlc; i++) {
+	    buf[offset++] = ' ';
+	    for (j = 7; j >= 0; j--)
+		buf[offset++] = (1<<j & cf->data[i])?'1':'0';
+	}
+	buf[offset] = 0; /* terminate string */
+    } else {
+	dlen = 3; /* _AA */
 	for (i = 0; i < cf->can_dlc; i++) {
 	    sprintf(buf+offset, " %02X", cf->data[i]);
-	    offset += 3;
+	    offset += dlen;
 	}
+    }
+
     if (cf->can_id & CAN_ERR_FLAG)
-	    sprintf(buf+offset, "%*s", 3*(8-cf->can_dlc)+13, "ERRORFRAME");
+	sprintf(buf+offset, "%*s", dlen*(8-cf->can_dlc)+13, "ERRORFRAME");
-	else if (ascii) {
+    else if (view & CANLIB_VIEW_ASCII) {
-	    sprintf(buf+offset, "%*s", 3*(8-cf->can_dlc)+4, "'");
+	j = dlen*(8-cf->can_dlc)+4;
-	    offset += 3*(8-cf->can_dlc)+4;
+	sprintf(buf+offset, "%*s", j, "'");
+	offset += j;
 
 	for (i = 0; i < cf->can_dlc; i++)
 	    if ((cf->data[i] > 0x1F) && (cf->data[i] < 0x7F))
 		buf[offset++] = cf->data[i];
 	    else
 		buf[offset++] = '.';
+
 	sprintf(buf+offset, "'");
     } 
 }
-}
 

lib.h

@@ -96,8 +96,11 @@ void sprint_canframe(char *buf , struct can_frame *cf, int sep);
  *
  */
 
-void fprint_long_canframe(FILE *stream , struct can_frame *cf, char *eol, int ascii);
+#define CANLIB_VIEW_ASCII	0x1
-void sprint_long_canframe(char *buf , struct can_frame *cf, int ascii);
+#define CANLIB_VIEW_BINARY	0x2
+
+void fprint_long_canframe(FILE *stream , struct can_frame *cf, char *eol, int view);
+void sprint_long_canframe(char *buf , struct can_frame *cf, int view);
 /*
  * Creates a CAN frame hexadecimal output in user readable format.
  *