10 #include <acess/devices/pty.h>
13 typedef struct sServer {
21 typedef struct sMessage
23 struct sMessage *Next;
27 char *Source; // Pointer into `Data`
31 typedef struct sWindow
35 tServer *Server; //!< Canoical server (can be NULL)
37 char Name[]; // Channel name / remote user
43 MSG_TYPE_SERVER, // Server message
45 MSG_TYPE_NOTICE, // NOTICE command
46 MSG_TYPE_JOIN, // JOIN command
47 MSG_TYPE_PART, // PART command
48 MSG_TYPE_QUIT, // QUIT command
50 MSG_TYPE_STANDARD, // Standard line
51 MSG_TYPE_ACTION, // /me
57 int ParseArguments(int argc, const char *argv[]);
58 int ParseUserCommand(char *String);
60 tServer *Server_Connect(const char *Name, const char *AddressString, short PortNumber);
61 tMessage *Message_AppendF(tServer *Server, int Type, const char *Source, const char *Dest, const char *Message, ...);
62 tMessage *Message_Append(tServer *Server, int Type, const char *Source, const char *Dest, const char *Message);
63 tWindow *Window_Create(tServer *Server, const char *Name);
64 void Redraw_Screen(void);
66 int ProcessIncoming(tServer *Server);
68 void SetCursorPos(int Row, int Col);
69 int writef(int FD, const char *Format, ...);
70 int OpenTCP(const char *AddressString, short PortNumber);
71 char *GetValue(char *Str, int *Ofs);
72 static inline int isdigit(int ch);
75 char *gsUsername = "user";
76 char *gsHostname = "acess";
77 char *gsRealName = "Acess2 IRC Client";
78 char *gsNickname = "acess";
80 tWindow gWindow_Status = {
81 NULL, NULL, NULL, // No next, empty list, no server
82 0, {""} // No activity, empty name (rendered as status)
84 tWindow *gpWindows = &gWindow_Status;
85 tWindow *gpCurrentWindow = &gWindow_Status;
86 int giTerminal_Width = 80;
87 int giTerminal_Height = 25;
90 void ExitHandler(void)
92 printf("\x1B[?1047l");
96 int main(int argc, const char *argv[], const char *envp[])
99 tReadline *readline_info;
101 // Parse Command line
102 if( (tmp = ParseArguments(argc, argv)) ) return tmp;
106 if( _SysIOCtl(1, DRV_IOCTL_TYPE, NULL) != DRV_TYPE_TERMINAL ) {
107 fprintf(stderr, "note: assuming 80x25, can't get terminal dimensions\n");
108 giTerminal_Width = 80;
109 giTerminal_Height = 25;
113 _SysIOCtl(1, PTY_IOCTL_GETDIMS, &dims);
114 giTerminal_Width = dims.W;
115 giTerminal_Height = dims.H;
118 printf("\x1B[?1047h");
119 printf("\x1B[%i;%ir", 0, giTerminal_Height-1);
121 SetCursorPos(giTerminal_Height-1, 0);
122 printf("[(status)] ");
124 // HACK: Static server entry
125 // UCC (University [of Western Australia] Computer Club) IRC Server
126 gWindow_Status.Server = Server_Connect( "UCC", "130.95.13.18", 6667 );
128 // gWindow_Status.Server = Server_Connect( "Freenode", "89.16.176.16", 6667 );
129 // gWindow_Status.Server = Server_Connect( "Host", "10.0.2.2", 6667 );
131 // gWindow_Status.Server = Server_Connect( "BitlBee", "192.168.1.39", 6667 );
133 if( !gWindow_Status.Server )
136 SetCursorPos(giTerminal_Height-1, 0);
137 printf("[(status)] ");
139 readline_info = Readline_Init(1);
143 fd_set readfds, errorfds;
149 FD_SET(0, &readfds); // stdin
153 // Fill server FDs in fd_set
154 for( srv = gpServers; srv; srv = srv->Next )
156 FD_SET(srv->FD, &readfds);
157 FD_SET(srv->FD, &errorfds);
158 if( srv->FD > maxFD )
162 rv = _SysSelect(maxFD+1, &readfds, 0, &errorfds, NULL, 0);
163 if( rv == -1 ) break;
165 if(FD_ISSET(0, &readfds))
168 char *cmd = Readline_NonBlock(readline_info);
173 ParseUserCommand(cmd);
177 SetCursorPos(giTerminal_Height-1, 0);
178 printf("\x1B[2K"); // Clear line
179 if( gpCurrentWindow->Name[0] )
180 printf("[%s:%s] ", gpCurrentWindow->Server->Name, gpCurrentWindow->Name);
182 printf("[(status)] ");
187 for( srv = gpServers; srv; srv = srv->Next )
189 if(FD_ISSET(srv->FD, &readfds))
191 if( ProcessIncoming(srv) != 0 ) {
197 if(FD_ISSET(srv->FD, &errorfds))
209 for( srv = gpServers; srv; srv = srv->Next )
216 * \todo Actually implement correctly :)
218 int ParseArguments(int argc, const char *argv[])
224 void Cmd_join(char *ArgString)
227 char *channel_name = GetValue(ArgString, &pos);
229 if( gpCurrentWindow->Server )
231 writef(gpCurrentWindow->Server->FD, "JOIN :%s\n", channel_name);
235 void Cmd_quit(char *ArgString)
237 const char *quit_message = ArgString;
238 if( quit_message == NULL || quit_message[0] == '\0' )
239 quit_message = "/quit - Acess2 IRC Client";
241 for( tServer *srv = gpServers; srv; srv = srv->Next )
243 writef(srv->FD, "QUIT :%s\n", quit_message);
249 void Cmd_window(char *ArgString)
252 char *window_id = GetValue(ArgString, &pos);
253 int window_num = atoi(window_id);
258 window_num --; // Move to base 0
259 // Get `window_num`th window
260 for( win = gpWindows; win && window_num--; win = win->Next );
262 gpCurrentWindow = win;
265 // Otherwise, silently ignore
270 for( tWindow *win = gpWindows; win; win = win->Next, window_num ++ )
273 Message_AppendF(NULL, MSG_TYPE_SERVER, "client", "",
274 "%i: %s/%s", window_num, win->Server->Name, win->Name);
277 Message_AppendF(NULL, MSG_TYPE_SERVER, "client", "",
278 "%i: (status)", window_num);
286 void (*Fcn)(char *ArgString);
290 {"window", Cmd_window},
294 const int ciNumCommands = sizeof(caCommands)/sizeof(caCommands[0]);
297 * \brief Handle a line from the prompt
299 int ParseUserCommand(char *String)
301 if( String[0] == '/' )
306 command = GetValue(String, &pos)+1;
308 // TODO: Prefix matches
310 for( int i = 0; i < ciNumCommands; i ++ )
312 if( strcmp(command, caCommands[i].Name) == 0 ) {
318 caCommands[cmdIdx].Fcn(String+pos);
322 Message_AppendF(NULL, MSG_TYPE_SERVER, "client", "", "Unknown command %s", command);
328 // - Only send if server is valid and window name is non-empty
329 if( gpCurrentWindow->Server && gpCurrentWindow->Name[0] )
331 Message_Append(gpCurrentWindow->Server, MSG_TYPE_STANDARD,
332 gsNickname, gpCurrentWindow->Name, String);
333 writef(gpCurrentWindow->Server->FD,
334 "PRIVMSG %s :%s\n", gpCurrentWindow->Name,
344 * \brief Connect to a server
346 tServer *Server_Connect(const char *Name, const char *AddressString, short PortNumber)
350 ret = calloc(1, sizeof(tServer) + strlen(Name) + 1);
352 strcpy(ret->Name, Name);
354 // Connect to the remove server
355 ret->FD = OpenTCP( AddressString, PortNumber );
356 if( ret->FD == -1 ) {
357 fprintf(stderr, "%s: Unable to create socket\n", Name);
361 // Append to open list
362 ret->Next = gpServers;
365 // Read some initial data
366 Message_Append(NULL, MSG_TYPE_SERVER, Name, "", "Connection opened");
367 ProcessIncoming(ret);
370 writef(ret->FD, "USER %s %s %s : %s\n", gsUsername, gsHostname, AddressString, gsRealName);
371 writef(ret->FD, "NICK %s\n", gsNickname);
372 Message_Append(NULL, MSG_TYPE_SERVER, Name, "", "Identified");
373 //printf("%s: Identified\n", Name);
378 tMessage *Message_AppendF(tServer *Server, int Type, const char *Source, const char *Dest, const char *Message, ...)
382 va_start(args, Message);
383 len = vsnprintf(NULL, 0, Message, args);
386 vsnprintf(buf, len+1, Message, args);
387 return Message_Append(Server, Type, Source, Dest, buf);
391 tMessage *Message_Append(tServer *Server, int Type, const char *Source, const char *Dest, const char *Message)
394 int msgLen = strlen(Message);
396 // Server==NULL indicates an internal message
397 if( Server == NULL || Source[0] == '\0' )
399 win = &gWindow_Status;
401 // Determine if it's a channel or PM
402 else if( Dest[0] == '#' || Dest[0] == '&' ) // TODO: Better determining here
404 for(win = gpWindows; win; win = win->Next)
406 if( win->Server == Server && strcmp(win->Name, Dest) == 0 )
412 win = Window_Create(Server, Dest);
416 else if( strcmp(Dest, Server->Nick) != 0 )
418 // Umm... message for someone who isn't us?
419 win = &gWindow_Status; // Stick it in the status window, just in case
423 else if( strchr(Source, '.') ) // TODO: And again, less hack please
426 for(win = gpWindows; win; win = win->Next)
428 if( win->Server == Server && strcmp(win->Name, Source) == 0 )
435 win = &gWindow_Status;
438 // Set source to the server name (instead of the hostname)
439 Source = Server->Name;
444 for(win = gpWindows; win; win = win->Next)
446 if( win->Server == Server && strcmp(win->Name, Source) == 0 )
452 win = Window_Create(Server, Dest);
456 // Create message cache
457 _SysDebug("Win (%s) msg: <%s> %s", win->Name, Source, Message);
459 ret = malloc( sizeof(tMessage) + msgLen + 1 + strlen(Source) + 1 );
460 ret->Source = ret->Data + msgLen + 1;
461 strcpy(ret->Source, Source);
462 strcpy(ret->Data, Message);
464 ret->Server = Server;
466 // Append to window message list
467 ret->Next = win->Messages;
470 // Print now if current window
471 if( win == gpCurrentWindow )
474 printf("\x1b""D"); // Scroll down 1 (free space below)
475 SetCursorPos(giTerminal_Height-2, 0);
476 int prefixlen = strlen(Source) + 3;
477 int avail = giTerminal_Width - prefixlen;
478 int msglen = strlen(Message);
479 printf("[%s] %.*s", Source, avail, Message);
480 while( msglen > avail ) {
484 SetCursorPos(giTerminal_Height-2, prefixlen);
485 printf("%.*s", avail, Message);
493 tWindow *Window_Create(tServer *Server, const char *Name)
495 tWindow *ret, *prev = NULL;
498 // Get the end of the list
499 // TODO: Cache this instead
500 for( ret = gpCurrentWindow; ret; prev = ret, ret = ret->Next )
503 ret = malloc(sizeof(tWindow) + strlen(Name) + 1);
504 ret->Messages = NULL;
505 ret->Server = Server;
506 ret->ActivityLevel = 1;
507 strcpy(ret->Name, Name);
510 ret->Next = prev->Next;
513 else { // Shouldn't happen really
514 ret->Next = gpWindows;
518 // printf("Win %i %s:%s created\n", num, Server->Name, Name);
523 void Redraw_Screen(void)
528 printf("\x1B[2J"); // Clear screen
529 printf("\x1B[0;0H"); // Reset cursor
531 msg = gpCurrentWindow->Messages;
535 // Note: This renders from the bottom up
536 for( y = giTerminal_Height - 1; y -- && msg; msg = msg->Next)
538 int msglen = strlen(msg->Data);
539 int prefix_len = 3 + strlen(msg->Source);
540 int line_avail = giTerminal_Width - prefix_len;
543 y -= msglen / line_avail; // Extra lines (y-- above handles the 1 line case)
545 printf("[%s] ", msg->Source);
547 while(done < msglen) {
548 done += printf("%.*s", line_avail, msg->Data+done);
550 SetCursorPos(y+i, prefix_len);
554 // Bottom line is rendered by the prompt
557 void Cmd_PRIVMSG(tServer *Server, const char *Dest, const char *Src, const char *Message)
559 Message_Append(Server, MSG_TYPE_STANDARD, Dest, Src, Message);
560 //printf("<%s:%s:%s> %s\n", Server->Name, Dest, Src, Message);
565 void ParseServerLine(tServer *Server, char *Line)
570 // _SysDebug("[%s] %s", Server->Name, Line);
576 ident = GetValue(Line, &pos); // Ident (user or server)
577 cmd = GetValue(Line, &pos);
580 if( isdigit(cmd[0]) && isdigit(cmd[1]) && isdigit(cmd[2]) )
582 char *user, *message;
584 num = (cmd[0] - '0') * 100;
585 num += (cmd[1] - '0') * 10;
586 num += (cmd[2] - '0') * 1;
588 user = GetValue(Line, &pos);
590 if( Line[pos] == ':' ) {
591 message = Line + pos + 1;
594 message = GetValue(Line, &pos);
600 user = message; // Channel
601 message = Line + pos + 1; // Topic
602 Message_AppendF(Server, MSG_TYPE_SERVER, user, user, "Topic: %s", message);
604 case 333: // Topic set by
605 user = message; // Channel
606 message = GetValue(Line, &pos); // User
607 GetValue(Line, &pos); // Timestamp
608 Message_AppendF(Server, MSG_TYPE_SERVER, user, user, "Set by %s", message);
610 case 353: // /NAMES list
611 // <user> = <channel> :list
612 // '=' was eaten in and set to message
613 user = GetValue(Line, &pos); // Actually channel
614 message = Line + pos + 1; // List
615 Message_AppendF(Server, MSG_TYPE_SERVER, user, user, "Names: %s", message);
617 case 366: // end of /NAMES list
618 // <user> <channel> :msg
620 message = Line + pos + 1;
621 Message_Append(Server, MSG_TYPE_SERVER, user, user, message);
623 case 372: // MOTD Data
624 case 375: // MOTD Start
625 case 376: // MOTD End
628 //printf("[%s] %i %s\n", Server->Name, num, message);
629 Message_Append(Server, MSG_TYPE_SERVER, ident, user, message);
633 else if( strcmp(cmd, "NOTICE") == 0 )
635 char *class, *message;
637 class = GetValue(Line, &pos);
638 _SysDebug("NOTICE class='%s'", class);
640 if( Line[pos] == ':' ) {
641 message = Line + pos + 1;
644 message = GetValue(Line, &pos);
647 //printf("[%s] NOTICE %s: %s\n", Server->Name, ident, message);
648 char *ident_bang = strchr(ident, '!');
652 Message_Append(Server, MSG_TYPE_NOTICE, ident, "", message);
654 else if( strcmp(cmd, "PRIVMSG") == 0 )
656 char *dest, *message;
657 dest = GetValue(Line, &pos);
659 if( Line[pos] == ':' ) {
660 message = Line + pos + 1;
663 message = GetValue(Line, &pos);
666 // TODO: Catch when the privmsg is addressed to the user
668 // Cmd_PRIVMSG(Server, dest, ident, message);
669 char *ident_bang = strchr(ident, '!');
673 Message_Append(Server, MSG_TYPE_STANDARD, ident, dest, message);
675 else if( strcmp(cmd, "JOIN" ) == 0 )
678 channel = Line + pos + 1;
679 Window_Create(Server, channel);
683 Message_AppendF(Server, MSG_TYPE_SERVER, "", "", "Unknown message %s (%s)", cmd, Line+pos);
687 cmd = GetValue(Line, &pos);
689 if( strcmp(cmd, "PING") == 0 ) {
690 writef(Server->FD, "PONG %s\n", gsHostname);
695 Message_AppendF(NULL, MSG_TYPE_UNK, "", "", "Client Command: %s", Line);
701 * \brief Process incoming lines from the server
703 int ProcessIncoming(tServer *Server)
708 // While there is data in the buffer, read it into user memory and
709 // process it line by line
710 // ioctl#8 on a TCP client gets the number of bytes in the recieve buffer
711 // - Used to avoid blocking
713 while( (len = _SysIOCtl(Server->FD, 8, NULL)) > 0 )
717 len = _SysRead(Server->FD, &Server->InBuf[Server->ReadPos], BUFSIZ - Server->ReadPos);
721 Server->InBuf[Server->ReadPos + len] = '\0';
725 while( (newline = strchr(ptr, '\n')) )
728 if( newline[-1] == '\r' ) newline[-1] = '\0';
729 ParseServerLine(Server, ptr);
733 // Handle incomplete lines
734 if( ptr - Server->InBuf < len + Server->ReadPos ) {
735 // Update the read position
736 // InBuf ReadPos ptr ReadPos+len
737 // | old | new used | new unused |
738 Server->ReadPos = len + Server->ReadPos - (ptr - Server->InBuf);
739 // Copy stuff back (moving "new unused" to the start of the buffer)
740 memcpy(Server->InBuf, ptr, Server->ReadPos);
753 * \brief Write a formatted string to a file descriptor
756 int writef(int FD, const char *Format, ...)
761 va_start(args, Format);
762 len = vsnprintf(NULL, 0, Format, args);
767 va_start(args, Format);
768 vsnprintf(buf, len+1, Format, args);
771 return _SysWrite(FD, buf, len);
776 * \brief Initialise a TCP connection to \a AddressString on port \a PortNumber
778 int OpenTCP(const char *AddressString, short PortNumber)
784 addrType = Net_ParseAddress(AddressString, addrBuffer);
785 if( addrType == 0 ) {
786 fprintf(stderr, "Unable to parse '%s' as an IP address\n", AddressString);
787 _SysDebug("Unable to parse '%s' as an IP address\n", AddressString);
791 // Finds the interface for the destination address
792 fd = Net_OpenSocket(addrType, addrBuffer, "tcpc");
794 fprintf(stderr, "Unable to open TCP Client to '%s'\n", AddressString);
795 _SysDebug("Unable to open TCP client to '%s'\n", AddressString);
799 // Set remote port and address
800 // printf("Setting port and remote address\n");
801 _SysIOCtl(fd, 5, &PortNumber);
802 _SysIOCtl(fd, 6, addrBuffer);
805 // printf("Initiating connection\n");
806 if( _SysIOCtl(fd, 7, NULL) == 0 ) {
807 // Shouldn't happen :(
808 fprintf(stderr, "Unable to start connection\n");
817 * \brief Read a space-separated value from a string
819 char *GetValue(char *Src, int *Ofs)
822 char *ret = Src + pos;
825 if( !Src ) return NULL;
827 while( *ret == ' ' ) ret ++;
829 end = strchr(ret, ' ');
834 end = ret + strlen(ret) - 1;
838 while( *ret == ' ' ) end ++;
844 void SetCursorPos(int Row, int Col)
846 printf("\x1B[%i;%iH", Row, Col);
849 static inline int isdigit(int ch)
851 return '0' <= ch && ch < '9';