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Patch from Jim McQuillan to pass the terminal type to the remote host.
This commit is contained in:
Eric Andersen
parent
238bc4090d
commit
7e1273edf7
3
Config.h
3
Config.h
@ -362,6 +362,9 @@
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// Enable a if you system have setuped locale
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//#define BB_LOCALE_SUPPORT
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//
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// Support for TELNET to pass TERM type to remote host. Adds 384 bytes.
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#define BB_FEATURE_TELNET_TTYPE
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//
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// End of Features List
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//
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//
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@ -27,6 +27,8 @@
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* initial revision
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* Modified 2000/06/13 for inclusion into BusyBox by Erik Andersen
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* <andersen@lineo.com>
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* Modified 2001/05/07 to add ability to pass TTYPE to remote host by Jim McQuillan
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* <jam@ltsp.org>
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*
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*/
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@ -136,6 +138,10 @@ static int local_bind(int port);
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/* Some globals */
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static int one = 1;
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#ifdef BB_FEATURE_TELNET_TTYPE
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static char *ttype;
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#endif
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static void doexit(int ev)
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{
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cookmode();
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@ -321,6 +327,27 @@ static void putiac1(byte c)
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}
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#endif
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#ifdef BB_FEATURE_TELNET_TTYPE
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static void putiac_subopt(byte c, char *str)
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{
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int len = strlen(str) + 6; // ( 2 + 1 + 1 + strlen + 2 )
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if (G.iaclen + len > IACBUFSIZE)
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iacflush();
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putiac(IAC);
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putiac(SB);
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putiac(c);
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putiac(0);
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while(*str)
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putiac(*str++);
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putiac(IAC);
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putiac(SE);
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}
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#endif
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/* void putiacstring (subneg strings) */
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/* ******************************* */
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@ -427,12 +454,29 @@ static inline void to_sga()
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return;
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}
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#ifdef BB_FEATURE_TELNET_TTYPE
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static inline void to_ttype()
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{
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/* Tell server we will (or won't) do TTYPE */
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if(ttype)
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putiac2(WILL, TELOPT_TTYPE);
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else
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putiac2(WONT, TELOPT_TTYPE);
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return;
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}
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#endif
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static void telopt(byte c)
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{
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switch (c)
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{
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case TELOPT_ECHO: to_echo(c); break;
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case TELOPT_SGA: to_sga(c); break;
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#ifdef BB_FEATURE_TELNET_TTYPE
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case TELOPT_TTYPE: to_ttype(c); break;
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#endif
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default: to_notsup(c); break;
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}
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}
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@ -440,7 +484,7 @@ static void telopt(byte c)
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/* ******************************* */
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/* subnegotiation -- ignore all */
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/* subnegotiation -- ignore all (except TTYPE) */
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static int subneg(byte c)
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{
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@ -449,6 +493,11 @@ static int subneg(byte c)
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case TS_SUB1:
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if (c == IAC)
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G.telstate = TS_SUB2;
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#ifdef BB_FEATURE_TELNET_TTYPE
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else
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if (c == TELOPT_TTYPE)
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putiac_subopt(TELOPT_TTYPE,ttype);
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#endif
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break;
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case TS_SUB2:
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if (c == SE)
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@ -488,6 +537,9 @@ extern int telnet_main(int argc, char** argv)
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int maxfd;
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#endif
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#ifdef BB_FEATURE_TELNET_TTYPE
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ttype = getenv("TERM");
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#endif
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memset(&G, 0, sizeof G);
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54
telnet.c
54
telnet.c
@ -27,6 +27,8 @@
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* initial revision
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* Modified 2000/06/13 for inclusion into BusyBox by Erik Andersen
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* <andersen@lineo.com>
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* Modified 2001/05/07 to add ability to pass TTYPE to remote host by Jim McQuillan
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* <jam@ltsp.org>
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*
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*/
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@ -136,6 +138,10 @@ static int local_bind(int port);
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/* Some globals */
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static int one = 1;
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#ifdef BB_FEATURE_TELNET_TTYPE
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static char *ttype;
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#endif
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static void doexit(int ev)
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{
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cookmode();
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@ -321,6 +327,27 @@ static void putiac1(byte c)
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}
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#endif
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#ifdef BB_FEATURE_TELNET_TTYPE
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static void putiac_subopt(byte c, char *str)
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{
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int len = strlen(str) + 6; // ( 2 + 1 + 1 + strlen + 2 )
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if (G.iaclen + len > IACBUFSIZE)
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iacflush();
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putiac(IAC);
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putiac(SB);
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putiac(c);
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putiac(0);
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while(*str)
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putiac(*str++);
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putiac(IAC);
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putiac(SE);
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}
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#endif
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/* void putiacstring (subneg strings) */
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/* ******************************* */
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@ -427,12 +454,29 @@ static inline void to_sga()
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return;
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}
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#ifdef BB_FEATURE_TELNET_TTYPE
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static inline void to_ttype()
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{
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/* Tell server we will (or won't) do TTYPE */
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if(ttype)
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putiac2(WILL, TELOPT_TTYPE);
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else
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putiac2(WONT, TELOPT_TTYPE);
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return;
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}
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#endif
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static void telopt(byte c)
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{
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switch (c)
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{
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case TELOPT_ECHO: to_echo(c); break;
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case TELOPT_SGA: to_sga(c); break;
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#ifdef BB_FEATURE_TELNET_TTYPE
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case TELOPT_TTYPE: to_ttype(c); break;
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#endif
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default: to_notsup(c); break;
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}
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}
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@ -440,7 +484,7 @@ static void telopt(byte c)
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/* ******************************* */
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/* subnegotiation -- ignore all */
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/* subnegotiation -- ignore all (except TTYPE) */
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static int subneg(byte c)
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{
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@ -449,6 +493,11 @@ static int subneg(byte c)
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case TS_SUB1:
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if (c == IAC)
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G.telstate = TS_SUB2;
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#ifdef BB_FEATURE_TELNET_TTYPE
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else
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if (c == TELOPT_TTYPE)
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putiac_subopt(TELOPT_TTYPE,ttype);
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#endif
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break;
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case TS_SUB2:
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if (c == SE)
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@ -488,6 +537,9 @@ extern int telnet_main(int argc, char** argv)
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int maxfd;
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#endif
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#ifdef BB_FEATURE_TELNET_TTYPE
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ttype = getenv("TERM");
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#endif
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memset(&G, 0, sizeof G);
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