Made request_telnet_opt() global/public, so may be used from term.c to toggle

binary mode for Zmodem file transfers (for MBSE compatibility).

src/syncterm/telnet_io.c

@@ -69,7 +69,7 @@ static void send_telnet_cmd(uchar cmd, uchar opt)
 	}
 }
 
-static void request_telnet_opt(uchar cmd, uchar opt)
+void request_telnet_opt(uchar cmd, uchar opt)
 {
 	if(cmd==TELNET_DO || cmd==TELNET_DONT) {	/* remote option */
 		if(telnet_remote_option[opt]==telnet_opt_ack(cmd))

src/syncterm/telnet_io.h

@@ -3,10 +3,13 @@
 #ifndef _TELNET_IO_H_
 #define _TELNET_IO_H_
 
+#include "telnet.h"
+
 extern uchar	telnet_local_option[0x100];
 extern uchar	telnet_remote_option[0x100];
 
-BYTE* telnet_interpret(BYTE* inbuf, int inlen, BYTE* outbuf, int *outlen);
-BYTE* telnet_expand(BYTE* inbuf, size_t inlen, BYTE* outbuf, size_t *newlen);
+BYTE*	telnet_interpret(BYTE* inbuf, int inlen, BYTE* outbuf, int *outlen);
+BYTE*	telnet_expand(BYTE* inbuf, size_t inlen, BYTE* outbuf, size_t *newlen);
+void	request_telnet_opt(uchar cmd, uchar opt);
 
 #endif