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libtelnet
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pretty printing command and options names

This commit is contained in:
Sean Middleditch 2009-03-14 01:57:07 -04:00
parent 78f400feff
commit 0f91258291
1 changed files with 90 additions and 5 deletions
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95
telnet-proxy.c
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@ -17,13 +17,94 @@ static int client_sock;
static struct libtelnet_t server_telnet;
static struct libtelnet_t client_telnet;
static const char* get_name(int sock) {
static const char *get_name(int sock) {
if (sock == server_sock)
return "\e[31mSERVER";
else
return "\e[34mCLIENT";
}
static const char *get_cmd(unsigned char cmd) {
static char buffer[4];
switch (cmd) {
case 255: return "IAC";
case 254: return "DONT";
case 253: return "DO";
case 252: return "WONT";
case 251: return "WILL";
case 250: return "SB";
case 249: return "GA";
case 248: return "EL";
case 247: return "EC";
case 246: return "AYT";
case 245: return "AO";
case 244: return "IP";
case 243: return "BREAK";
case 242: return "DM";
case 241: return "NOP";
case 240: return "SE";
case 239: return "EOR";
case 238: return "ABORT";
case 237: return "SUSP";
case 236: return "xEOF";
default:
snprintf(buffer, sizeof(buffer), "%d", (int)cmd);
return buffer;
}
}
static const char *get_opt(unsigned char opt) {
switch (opt) {
case 0: return "BINARY";
case 1: return "ECHO";
case 2: return "RCP";
case 3: return "SGA";
case 4: return "NAMS";
case 5: return "STATUS";
case 6: return "TM";
case 7: return "RCTE";
case 8: return "NAOL";
case 9: return "NAOP";
case 10: return "NAOCRD";
case 11: return "NAOHTS";
case 12: return "NAOHTD";
case 13: return "NAOFFD";
case 14: return "NAOVTS";
case 15: return "NAOVTD";
case 16: return "NAOLFD";
case 17: return "XASCII";
case 18: return "LOGOUT";
case 19: return "BM";
case 20: return "DET";
case 21: return "SUPDUP";
case 22: return "SUPDUPOUTPUT";
case 23: return "SNDLOC";
case 24: return "TTYPE";
case 25: return "EOR";
case 26: return "TUID";
case 27: return "OUTMRK";
case 28: return "TTYLOC";
case 29: return "3270REGIME";
case 30: return "X3PAD";
case 31: return "NAWS";
case 32: return "TSPEED";
case 33: return "LFLOW";
case 34: return "LINEMODE";
case 35: return "XDISPLOC";
case 36: return "ENVIRON";
case 37: return "AUTHENTICATION";
case 38: return "ENCRYPT";
case 39: return "NEW-ENVIRON";
case 70: return "MSSP";
case 85: return "COMPRESS";
case 86: return "COMPRESS2";
case 93: return "ZMP";
case 255: return "EXOPL";
default: return "unknown";
}
}
static struct libtelnet_t *other_telnet(struct libtelnet_t *telnet) {
if (telnet == &server_telnet)
return &client_telnet;
@ -80,7 +161,7 @@ void libtelnet_command_cb(struct libtelnet_t *telnet, unsigned char cmd,
void *user_data) {
int sock = *(int*)user_data;
printf("%s IAC %d\e[0m\n", get_name(sock), (int)cmd);
printf("%s IAC %s\e[0m\n", get_name(sock), get_cmd(cmd));
libtelnet_send_command(other_telnet(telnet), cmd, other_socket(sock));
}
@ -89,7 +170,8 @@ void libtelnet_negotiate_cb(struct libtelnet_t *telnet, unsigned char cmd,
unsigned char opt, void *user_data) {
int sock = *(int*)user_data;
printf("%s IAC %d %d\e[0m\n", get_name(sock), (int)cmd, (int)opt);
printf("%s IAC %s %d (%s)\e[0m\n", get_name(sock), get_cmd(cmd),
(int)opt, get_opt(opt));
libtelnet_send_negotiate(other_telnet(telnet), cmd, opt,
other_socket(sock));
@ -99,8 +181,11 @@ void libtelnet_subrequest_cb(struct libtelnet_t *telnet, unsigned char type,
unsigned char *buffer, unsigned int size, void *user_data) {
int sock = *(int*)user_data;
printf("%s SUBREQ %d: ", get_name(sock), (int)type);
print_buffer(buffer, size);
printf("%s SUB %d (%s)", get_name(sock), (int)type, get_opt(type));
if (size > 0) {
printf(": ");
print_buffer(buffer, size);
}
printf("\e[0m\n");
libtelnet_send_subrequest(other_telnet(telnet), type, buffer, size,