4 #include <acess/sys.h>
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9 #include <readline.h>
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14 typedef struct sServer {
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15 struct sServer *Next;
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17 char InBuf[BUFSIZ+1];
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22 typedef struct sMessage
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24 struct sMessage *Next;
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28 char *Source; // Pointer into `Data`
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32 typedef struct sWindow
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34 struct sWindow *Next;
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36 tServer *Server; //!< Canoical server (can be NULL)
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38 char Name[]; // Channel name / remote user
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44 MSG_TYPE_SERVER, // Server message
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46 MSG_TYPE_NOTICE, // NOTICE command
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47 MSG_TYPE_JOIN, // JOIN command
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48 MSG_TYPE_PART, // PART command
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49 MSG_TYPE_QUIT, // QUIT command
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51 MSG_TYPE_STANDARD, // Standard line
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52 MSG_TYPE_ACTION, // /me
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57 // === PROTOTYPES ===
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58 int ParseArguments(int argc, const char *argv[]);
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59 int ParseUserCommand(char *String);
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61 tServer *Server_Connect(const char *Name, const char *AddressString, short PortNumber);
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62 tMessage *Message_AppendF(tServer *Server, int Type, const char *Source, const char *Dest, const char *Message, ...);
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63 tMessage *Message_Append(tServer *Server, int Type, const char *Source, const char *Dest, const char *Message);
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64 tWindow *Window_Create(tServer *Server, const char *Name);
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66 int ProcessIncoming(tServer *Server);
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68 int SetCursorPos(int Row, int Col);
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69 int writef(int FD, const char *Format, ...);
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70 int OpenTCP(const char *AddressString, short PortNumber);
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71 char *GetValue(char *Str, int *Ofs);
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72 static inline int isdigit(int ch);
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75 char *gsUsername = "user";
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76 char *gsHostname = "acess";
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77 char *gsRealName = "Acess2 IRC Client";
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78 char *gsNickname = "acess";
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80 tWindow gWindow_Status = {
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81 NULL, NULL, NULL, // No next, empty list, no server
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82 0, "" // No activity, empty name (rendered as status)
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84 tWindow *gpWindows = &gWindow_Status;
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85 tWindow *gpCurrentWindow = &gWindow_Status;
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86 int giTerminal_Width = 80;
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87 int giTerminal_Height = 25;
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90 void ExitHandler(void)
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92 printf("\x1B[?1047l");
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96 int main(int argc, const char *argv[], const char *envp[])
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99 tReadline *readline_info;
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101 // Parse Command line
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102 if( (tmp = ParseArguments(argc, argv)) ) return tmp;
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104 atexit(ExitHandler);
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106 giTerminal_Width = ioctl(1, 5, NULL); // getset_width
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107 giTerminal_Height = ioctl(1, 6, NULL); // getset_height
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109 printf("\x1B[?1047h");
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110 printf("\x1B[%i;%ir", 0, giTerminal_Height-1);
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112 SetCursorPos(giTerminal_Height-1, 0);
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113 printf("[(status)] ");
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115 // HACK: Static server entry
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116 // UCC (University [of Western Australia] Computer Club) IRC Server
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117 //gWindow_Status.Server = Server_Connect( "UCC", "130.95.13.18", 6667 );
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118 gWindow_Status.Server = Server_Connect( "UCC", "10.0.2.2", 6667 );
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120 if( !gWindow_Status.Server )
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123 SetCursorPos(giTerminal_Height-1, 0);
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124 printf("[(status)] ");
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125 readline_info = Readline_Init(1);
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129 fd_set readfds, errorfds;
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134 FD_ZERO(&errorfds);
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135 FD_SET(0, &readfds); // stdin
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137 // Fill server FDs in fd_set
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138 for( srv = gpServers; srv; srv = srv->Next )
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140 FD_SET(srv->FD, &readfds);
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141 FD_SET(srv->FD, &errorfds);
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142 if( srv->FD > maxFD )
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146 rv = select(maxFD+1, &readfds, 0, &errorfds, NULL);
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147 if( rv == -1 ) break;
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149 if(FD_ISSET(0, &readfds))
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152 char *cmd = Readline_NonBlock(readline_info);
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157 ParseUserCommand(cmd);
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161 SetCursorPos(giTerminal_Height-1, 0);
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162 printf("\x1B[K"); // Clear line
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163 if( gpCurrentWindow->Name[0] )
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164 printf("[%s:%s] ", gpCurrentWindow->Server->Name, gpCurrentWindow->Name);
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166 printf("[(status)] ");
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171 for( srv = gpServers; srv; srv = srv->Next )
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173 if(FD_ISSET(srv->FD, &readfds))
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175 if( ProcessIncoming(srv) != 0 ) {
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181 if(FD_ISSET(srv->FD, &errorfds))
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193 for( srv = gpServers; srv; srv = srv->Next )
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200 * \todo Actually implement correctly :)
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202 int ParseArguments(int argc, const char *argv[])
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207 int ParseUserCommand(char *String)
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209 if( String[0] == '/' )
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214 command = GetValue(String, &pos);
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216 if( strcmp(command, "/join") == 0 )
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218 char *channel_name = GetValue(String, &pos);
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220 if( gpCurrentWindow->Server )
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222 writef(gpCurrentWindow->Server->FD, "JOIN :%s\n", channel_name);
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225 else if( strcmp(command, "/quit") == 0 )
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227 char *quit_message = String + pos;
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230 if( quit_message == NULL || quit_message[0] == '\0' )
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231 quit_message = "/quit - Acess2 IRC Client";
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233 for( srv = gpServers; srv; srv = srv->Next )
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235 writef(srv->FD, "QUIT :%s\n", quit_message);
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240 else if( strcmp(command, "/window") == 0 || strcmp(command, "/win") == 0 || strcmp(command, "/w") == 0 )
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242 char *window_id = GetValue(String, &pos);
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243 int window_num = atoi(window_id);
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245 if( window_num > 0 )
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248 window_num --; // Move to base 0
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249 // Get `window_num`th window
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250 for( win = gpWindows; win && window_num--; win = win->Next );
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252 gpCurrentWindow = win;
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254 // Otherwise, silently ignore
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260 for( win = gpWindows; win; win = win->Next, window_num ++ )
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262 if( win->Name[0] ) {
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263 Message_AppendF(NULL, MSG_TYPE_SERVER, "client", "",
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264 "%i: %s/%s", window_num, win->Server->Name, win->Name);
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267 Message_AppendF(NULL, MSG_TYPE_SERVER, "client", "",
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268 "%i: (status)", window_num);
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275 Message_AppendF(NULL, MSG_TYPE_SERVER, "client", "", "Unknown command %s", command);
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281 // - Only send if server is valid and window name is non-empty
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282 if( gpCurrentWindow->Server && gpCurrentWindow->Name[0] )
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284 Message_Append(gpCurrentWindow->Server, MSG_TYPE_STANDARD,
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285 gsNickname, gpCurrentWindow->Name, String);
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286 writef(gpCurrentWindow->Server->FD,
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287 "PRIVMSG %s :%s\n", gpCurrentWindow->Name,
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297 * \brief Connect to a server
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299 tServer *Server_Connect(const char *Name, const char *AddressString, short PortNumber)
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303 ret = calloc(1, sizeof(tServer) + strlen(Name) + 1);
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305 strcpy(ret->Name, Name);
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307 // Connect to the remove server
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308 ret->FD = OpenTCP( AddressString, PortNumber );
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309 if( ret->FD == -1 ) {
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310 fprintf(stderr, "%s: Unable to create socket\n", Name);
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314 // Append to open list
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315 ret->Next = gpServers;
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318 // Read some initial data
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319 Message_Append(NULL, MSG_TYPE_SERVER, Name, "", "Connection opened");
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320 ProcessIncoming(ret);
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323 writef(ret->FD, "USER %s %s %s : %s\n", gsUsername, gsHostname, AddressString, gsRealName);
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324 writef(ret->FD, "NICK %s\n", gsNickname);
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325 Message_Append(NULL, MSG_TYPE_SERVER, Name, "", "Identified");
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326 //printf("%s: Identified\n", Name);
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331 tMessage *Message_AppendF(tServer *Server, int Type, const char *Source, const char *Dest, const char *Message, ...)
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335 va_start(args, Message);
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336 len = vsnprintf(NULL, 1000, Message, args);
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339 vsnprintf(buf, len+1, Message, args);
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340 return Message_Append(Server, Type, Source, Dest, buf);
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344 tMessage *Message_Append(tServer *Server, int Type, const char *Source, const char *Dest, const char *Message)
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347 tWindow *win = NULL;
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348 int msgLen = strlen(Message);
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350 // NULL servers are internal messages
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351 if( Server == NULL || Source[0] == '\0' )
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353 win = &gWindow_Status;
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355 // Determine if it's a channel or PM message
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356 else if( Dest[0] == '#' || Dest[0] == '&' ) // TODO: Better determining here
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358 tWindow *prev = NULL;
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359 for(win = gpWindows; win; prev = win, win = win->Next)
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361 if( win->Server == Server && strcmp(win->Name, Dest) == 0 )
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367 win = Window_Create(Server, Dest);
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371 else if( strcmp(Dest, Server->Nick) != 0 )
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373 // Umm... message for someone who isn't us?
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374 win = &gWindow_Status; // Stick it in the status window, just in case
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378 else if( strchr(Source, '.') ) // TODO: And again, less hack please
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381 for(win = gpWindows; win; win = win->Next)
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383 if( win->Server == Server && strcmp(win->Name, Source) == 0 )
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390 win = &gWindow_Status;
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397 for(win = gpWindows; win; win = win->Next)
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399 if( win->Server == Server && strcmp(win->Name, Source) == 0 )
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405 win = Window_Create(Server, Dest);
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409 ret = malloc( sizeof(tMessage) + msgLen + 1 + strlen(Source) + 1 );
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410 ret->Source = ret->Data + msgLen + 1;
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411 strcpy(ret->Source, Source);
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412 strcpy(ret->Data, Message);
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414 ret->Server = Server;
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416 // TODO: Append to window message list
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417 ret->Next = win->Messages;
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418 win->Messages = ret;
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420 //TODO: Set location
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423 int pos = SetCursorPos(giTerminal_Height-2, 0);
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425 if( win == gpCurrentWindow ) {
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426 printf("\x1B[T"); // Scroll down 1 (free space below)
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427 printf("[%s] %s\n", Source, Message);
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431 printf("%s/%s [%s] %s\n", win->Server->Name, win->Name, Source, Message);
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433 printf("(status) [%s] %s\n", Source, Message);
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435 SetCursorPos(-1, pos);
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441 tWindow *Window_Create(tServer *Server, const char *Name)
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443 tWindow *ret, *prev = NULL;
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446 // Get the end of the list
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447 // TODO: Cache this instead
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448 for( ret = gpCurrentWindow; ret; prev = ret, ret = ret->Next )
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451 ret = malloc(sizeof(tWindow) + strlen(Name) + 1);
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452 ret->Messages = NULL;
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453 ret->Server = Server;
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454 ret->ActivityLevel = 1;
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455 strcpy(ret->Name, Name);
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458 ret->Next = prev->Next;
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461 else { // Shouldn't happen really
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462 ret->Next = gpWindows;
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466 // printf("Win %i %s:%s created\n", num, Server->Name, Name);
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471 void Cmd_PRIVMSG(tServer *Server, const char *Dest, const char *Src, const char *Message)
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473 Message_Append(Server, MSG_TYPE_STANDARD, Dest, Src, Message);
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474 //printf("<%s:%s:%s> %s\n", Server->Name, Dest, Src, Message);
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479 void ParseServerLine(tServer *Server, char *Line)
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487 ident = GetValue(Line, &pos); // Ident (user or server)
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488 cmd = GetValue(Line, &pos);
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491 if( isdigit(cmd[0]) && isdigit(cmd[1]) && isdigit(cmd[2]) )
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493 char *user, *message;
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495 num = (cmd[0] - '0') * 100;
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496 num += (cmd[1] - '0') * 10;
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497 num += (cmd[2] - '0') * 1;
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499 user = GetValue(Line, &pos);
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501 if( Line[pos] == ':' ) {
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502 message = Line + pos + 1;
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505 message = GetValue(Line, &pos);
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511 //printf("[%s] %i %s\n", Server->Name, num, message);
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512 Message_Append(Server, MSG_TYPE_SERVER, ident, user, message);
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516 else if( strcmp(cmd, "NOTICE") == 0 )
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518 char *class, *message;
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520 class = GetValue(Line, &pos);
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522 if( Line[pos] == ':' ) {
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523 message = Line + pos + 1;
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526 message = GetValue(Line, &pos);
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529 //printf("[%s] NOTICE %s: %s\n", Server->Name, ident, message);
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530 Message_Append(Server, MSG_TYPE_NOTICE, ident, "", message);
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532 else if( strcmp(cmd, "PRIVMSG") == 0 )
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534 char *dest, *message;
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535 dest = GetValue(Line, &pos);
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537 if( Line[pos] == ':' ) {
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538 message = Line + pos + 1;
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541 message = GetValue(Line, &pos);
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543 Cmd_PRIVMSG(Server, dest, ident, message);
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544 Message_Append(Server, MSG_TYPE_STANDARD, ident, dest, message);
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546 else if( strcmp(cmd, "JOIN" ) == 0 )
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549 channel = GetValue(Line, &pos) + 1;
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550 Window_Create(Server, channel);
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554 Message_AppendF(Server, MSG_TYPE_SERVER, "", "", "Unknown message %s (%s)\n", cmd, Line+pos);
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559 // Command to client
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560 printf("Client Command: %s", Line);
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565 * \brief Process incoming lines from the server
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567 int ProcessIncoming(tServer *Server)
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569 char *ptr, *newline;
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572 // While there is data in the buffer, read it into user memory and
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573 // process it line by line
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574 // ioctl#8 on a TCP client gets the number of bytes in the recieve buffer
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575 // - Used to avoid blocking
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577 while( (len = ioctl(Server->FD, 8, NULL)) > 0 )
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581 len = read(Server->FD, BUFSIZ - Server->ReadPos, &Server->InBuf[Server->ReadPos]);
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585 Server->InBuf[Server->ReadPos + len] = '\0';
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587 // Break into lines
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588 ptr = Server->InBuf;
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589 while( (newline = strchr(ptr, '\n')) )
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592 if( newline[-1] == '\r' ) newline[-1] = '\0';
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593 ParseServerLine(Server, ptr);
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597 // Handle incomplete lines
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598 if( ptr - Server->InBuf < len + Server->ReadPos ) {
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599 // Update the read position
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600 // InBuf ReadPos ptr ReadPos+len
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601 // | old | new used | new unused |
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602 Server->ReadPos = len + Server->ReadPos - (ptr - Server->InBuf);
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603 // Copy stuff back (moving "new unused" to the start of the buffer)
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604 memcpy(Server->InBuf, ptr, Server->ReadPos);
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607 Server->ReadPos = 0;
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617 * \brief Write a formatted string to a file descriptor
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620 int writef(int FD, const char *Format, ...)
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625 va_start(args, Format);
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626 len = vsnprintf(NULL, 1000, Format, args);
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631 va_start(args, Format);
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632 vsnprintf(buf, len+1, Format, args);
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635 return write(FD, len, buf);
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640 * \brief Initialise a TCP connection to \a AddressString on port \a PortNumber
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642 int OpenTCP(const char *AddressString, short PortNumber)
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646 char addrBuffer[8];
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648 // Parse IP Address
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649 addrType = Net_ParseAddress(AddressString, addrBuffer);
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650 if( addrType == 0 ) {
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651 fprintf(stderr, "Unable to parse '%s' as an IP address\n", AddressString);
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655 // Finds the interface for the destination address
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656 iface = Net_GetInterface(addrType, addrBuffer);
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657 if( iface == NULL ) {
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658 fprintf(stderr, "Unable to find a route to '%s'\n", AddressString);
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662 printf("iface = '%s'\n", iface);
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664 // Open client socket
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665 // TODO: Move this out to libnet?
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667 int len = snprintf(NULL, 100, "/Devices/ip/%s/tcpc", iface);
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669 snprintf(path, 100, "/Devices/ip/%s/tcpc", iface);
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670 fd = open(path, OPENFLAG_READ|OPENFLAG_WRITE);
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676 fprintf(stderr, "Unable to open TCP Client for reading\n");
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680 // Set remote port and address
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681 printf("Setting port and remote address\n");
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682 ioctl(fd, 5, &PortNumber);
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683 ioctl(fd, 6, addrBuffer);
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686 printf("Initiating connection\n");
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687 if( ioctl(fd, 7, NULL) == 0 ) {
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688 // Shouldn't happen :(
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689 fprintf(stderr, "Unable to start connection\n");
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693 // Return descriptor
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698 * \brief Read a space-separated value from a string
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700 char *GetValue(char *Src, int *Ofs)
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703 char *ret = Src + pos;
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706 if( !Src ) return NULL;
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708 while( *ret == ' ' ) ret ++;
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710 end = strchr(ret, ' ');
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715 end = ret + strlen(ret) - 1;
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719 while( *ret == ' ' ) end ++;
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725 int SetCursorPos(int Row, int Col)
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728 Row = Col / giTerminal_Width;
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729 Col = Col % giTerminal_Width;
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731 printf("\x1B[%i;%iH", Col, Row);
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732 return ioctl(1, 9, NULL); // Ugh, constants
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735 static inline int isdigit(int ch)
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737 return '0' <= ch && ch < '9';
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