--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mot931c/ptydump.c	Wed May 14 05:34:37 2014 +0000
@@ -0,0 +1,37 @@
+#include <sys/types.h>
+#include <sys/file.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+main(argc, argv)
+	char **argv;
+{
+	int fd;
+	u_char buf[1024];
+	int cc, i;
+
+	if (argc != 2) {
+		fprintf(stderr, "usage: %s pty\n", argv[0]);
+		exit(1);
+	}
+	fd = open(argv[1], O_RDWR);
+	if (fd < 0) {
+		perror(argv[1]);
+		exit(1);
+	}
+	for (;;) {
+		cc = read(fd, buf, sizeof buf);
+		if (cc < 0) {
+			perror("read error");
+			exit(1);
+		}
+		if (cc == 0) {
+			fprintf(stderr, "read EOF\n");
+			exit(1);
+		}
+		printf("read %d bytes:", cc);
+		for (i = 0; i < cc; i++)
+			printf(" %02X", buf[i]);
+		putchar('\n');
+	}
+}