implement cmd messages

irena.c

@@ -1250,13 +1250,13 @@ static inline int base85_encode1(unsigned int b, char *s)
 		return 1;
 	}
 	s += 5;
-	*s = 0;
+	*s-- = 0;
 	for (int i=0; i<4; i++) {
 		unsigned int bb = b;
 		b /= 85;
 		*s-- = bb - b*85 + 33;
 	}
-	*s = b;
+	*s = b + 33;
 	return 5;
 }
 
@@ -2134,6 +2134,27 @@ char *poll_response(time_t timeout)
 	return l;
 }
 
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// ARM message log readout
+
+int read_messages()
+{
+	int n = 0;
+	while (n++<33) {
+		static const char cmd[] = "mes";
+		silent(2);
+		while (-2==send_irena_command(cmd)) {
+			unsilent();
+			poll_uart(1);
+		}
+		unsilent();
+		char *res = poll_response(2);
+		if (!res || !*res || !strncmp(res+1, "100", 3))
+			break;
+	}
+	return 0;
+}
+
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 // Send the contents of a file to the flash_buffer and exectute CR_BUFFER in each
 
@@ -2222,7 +2243,6 @@ int send_file_85(const char *fn)
 			int c = snprintf(cmd, 64, "v f[%d]=:{", i);
 			while (c<58 && i<128)
 				c += base85_encode1(buf[i++], cmd+c);
-			cmd[c++] = 0;
 			while (retry<3) {
 				loud(2);
 				while (-2==send_irena_command(cmd))
@@ -2687,6 +2707,7 @@ int process_cmd(char *l)
 			"\texit «code»\n"
 			"\tsleep «seconds»\n"
 			"\tscript «filename»\n"
+			"\tmessages\n"
 			"\tuart «tty» [«baudrate»] [reset|rs232|rs422|gpio[0]]\n"
 			"\tirena «commandline»\n"
 			"\tfct «lines»\n"
@@ -2875,6 +2896,9 @@ int process_cmd(char *l)
 		return 0;
 	}
 
+	if (!strcmp(av[0], "messages"))
+		return read_messages();
+
 	if (!strcmp(av[0], "path")) {
 		struct paths *pp;
 		for (pp=paths; pp->name; pp++)