#define LF 10
#define NUL 0
-#define iswritable(x) ( (x) != IAC && (x) != CR )
+#define iswritable(x) \
+ ( (x) != IAC && \
+ (telnet->opt_states[o_we_bin.index] == ACTIVE || (x) != CR))
static char *telopt(int opt)
{
OPTINDEX_ECHO,
OPTINDEX_WE_SGA,
OPTINDEX_THEY_SGA,
+ OPTINDEX_WE_BIN,
+ OPTINDEX_THEY_BIN,
NUM_OPTS
};
{ WILL, WONT, DO, DONT, TELOPT_SGA, OPTINDEX_WE_SGA, REQUESTED };
static const struct Opt o_they_sga =
{ DO, DONT, WILL, WONT, TELOPT_SGA, OPTINDEX_THEY_SGA, REQUESTED };
+static const struct Opt o_we_bin =
+ { WILL, WONT, DO, DONT, TELOPT_BINARY, OPTINDEX_WE_BIN, INACTIVE };
+static const struct Opt o_they_bin =
+ { DO, DONT, WILL, WONT, TELOPT_BINARY, OPTINDEX_THEY_BIN, INACTIVE };
static const struct Opt *const opts[] = {
&o_naws, &o_tspeed, &o_ttype, &o_oenv, &o_nenv, &o_echo,
- &o_we_sga, &o_they_sga, NULL
+ &o_we_sga, &o_they_sga, &o_we_bin, &o_they_bin, NULL
};
typedef struct telnet_tag {
else if (c == DM)
telnet->in_synch = 0;
#endif
- if (c == CR)
+ if (c == CR && telnet->opt_states[o_they_bin.index] != ACTIVE)
telnet->state = SEENCR;
else
telnet->state = TOP_LEVEL;
logevent(telnet->frontend, buf);
sfree(buf);
}
- addr = sk_namelookup(host, realhost);
+ addr = name_lookup(host, port, realhost);
if ((err = sk_addr_error(addr)))
return err;
static void telnet_size(void *handle, int width, int height)
{
Telnet telnet = (Telnet) handle;
- unsigned char b[16];
+ unsigned char b[24];
+ int n;
char *logbuf;
telnet->term_width = width;
if (telnet->s == NULL || telnet->opt_states[o_naws.index] != ACTIVE)
return;
- b[0] = IAC;
- b[1] = SB;
- b[2] = TELOPT_NAWS;
- b[3] = telnet->term_width >> 8;
- b[4] = telnet->term_width & 0xFF;
- b[5] = telnet->term_height >> 8;
- b[6] = telnet->term_height & 0xFF;
- b[7] = IAC;
- b[8] = SE;
- telnet->bufsize = sk_write(telnet->s, b, 9);
+ n = 0;
+ b[n++] = IAC;
+ b[n++] = SB;
+ b[n++] = TELOPT_NAWS;
+ b[n++] = telnet->term_width >> 8;
+ if (b[n-1] == IAC) b[n++] = IAC; /* duplicate any IAC byte occurs */
+ b[n++] = telnet->term_width & 0xFF;
+ if (b[n-1] == IAC) b[n++] = IAC; /* duplicate any IAC byte occurs */
+ b[n++] = telnet->term_height >> 8;
+ if (b[n-1] == IAC) b[n++] = IAC; /* duplicate any IAC byte occurs */
+ b[n++] = telnet->term_height & 0xFF;
+ if (b[n-1] == IAC) b[n++] = IAC; /* duplicate any IAC byte occurs */
+ b[n++] = IAC;
+ b[n++] = SE;
+ telnet->bufsize = sk_write(telnet->s, b, n);
logbuf = dupprintf("client:\tSB NAWS %d,%d",
- ((unsigned char) b[3] << 8) + (unsigned char) b[4],
- ((unsigned char) b[5] << 8) + (unsigned char) b[6]);
+ telnet->term_width, telnet->term_height);
logevent(telnet->frontend, logbuf);
sfree(logbuf);
}
telnet->bufsize = sk_write(telnet->s, b, 2);
break;
case TS_EOL:
- telnet->bufsize = sk_write(telnet->s, "\r\n", 2);
+ /* In BINARY mode, CR-LF becomes just CR. */
+ if (telnet->opt_states[o_we_bin.index] == ACTIVE)
+ telnet->bufsize = sk_write(telnet->s, "\r", 2);
+ else
+ telnet->bufsize = sk_write(telnet->s, "\r\n", 2);
break;
case TS_SYNCH:
b[1] = DM;