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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65 void Redraw_Screen(void);
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67 int ProcessIncoming(tServer *Server);
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69 int SetCursorPos(int Row, int Col);
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70 int writef(int FD, const char *Format, ...);
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71 int OpenTCP(const char *AddressString, short PortNumber);
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72 char *GetValue(char *Str, int *Ofs);
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73 static inline int isdigit(int ch);
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76 char *gsUsername = "user";
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77 char *gsHostname = "acess";
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78 char *gsRealName = "Acess2 IRC Client";
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79 char *gsNickname = "acess";
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81 tWindow gWindow_Status = {
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82 NULL, NULL, NULL, // No next, empty list, no server
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83 0, "" // No activity, empty name (rendered as status)
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85 tWindow *gpWindows = &gWindow_Status;
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86 tWindow *gpCurrentWindow = &gWindow_Status;
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87 int giTerminal_Width = 80;
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88 int giTerminal_Height = 25;
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91 void ExitHandler(void)
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93 printf("\x1B[?1047l");
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97 int main(int argc, const char *argv[], const char *envp[])
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100 tReadline *readline_info;
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102 // Parse Command line
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103 if( (tmp = ParseArguments(argc, argv)) ) return tmp;
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105 atexit(ExitHandler);
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107 giTerminal_Width = ioctl(1, 5, NULL); // getset_width
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108 giTerminal_Height = ioctl(1, 6, NULL); // getset_height
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110 printf("\x1B[?1047h");
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111 printf("\x1B[%i;%ir", 0, giTerminal_Height-1);
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113 SetCursorPos(giTerminal_Height-1, 0);
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114 printf("[(status)] ");
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116 // HACK: Static server entry
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117 // UCC (University [of Western Australia] Computer Club) IRC Server
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118 // gWindow_Status.Server = Server_Connect( "UCC", "130.95.13.18", 6667 );
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119 gWindow_Status.Server = Server_Connect( "Freenode", "89.16.176.16", 6667 );
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120 // gWindow_Status.Server = Server_Connect( "Host", "10.0.2.2", 6667 );
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121 // gWindow_Status.Server = Server_Connect( "BitlBee", "192.168.1.34", 6667 );
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123 if( !gWindow_Status.Server )
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126 SetCursorPos(giTerminal_Height-1, 0);
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127 printf("[(status)] ");
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128 readline_info = Readline_Init(1);
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132 fd_set readfds, errorfds;
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137 FD_ZERO(&errorfds);
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138 FD_SET(0, &readfds); // stdin
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140 // Fill server FDs in fd_set
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141 for( srv = gpServers; srv; srv = srv->Next )
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143 FD_SET(srv->FD, &readfds);
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144 FD_SET(srv->FD, &errorfds);
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145 if( srv->FD > maxFD )
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149 rv = select(maxFD+1, &readfds, 0, &errorfds, NULL);
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150 if( rv == -1 ) break;
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152 if(FD_ISSET(0, &readfds))
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155 char *cmd = Readline_NonBlock(readline_info);
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160 ParseUserCommand(cmd);
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164 SetCursorPos(giTerminal_Height-1, 0);
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165 printf("\x1B[K"); // Clear line
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166 if( gpCurrentWindow->Name[0] )
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167 printf("[%s:%s] ", gpCurrentWindow->Server->Name, gpCurrentWindow->Name);
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169 printf("[(status)] ");
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174 for( srv = gpServers; srv; srv = srv->Next )
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176 if(FD_ISSET(srv->FD, &readfds))
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178 if( ProcessIncoming(srv) != 0 ) {
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184 if(FD_ISSET(srv->FD, &errorfds))
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196 for( srv = gpServers; srv; srv = srv->Next )
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203 * \todo Actually implement correctly :)
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205 int ParseArguments(int argc, const char *argv[])
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210 int ParseUserCommand(char *String)
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212 if( String[0] == '/' )
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217 command = GetValue(String, &pos);
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219 if( strcmp(command, "/join") == 0 )
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221 char *channel_name = GetValue(String, &pos);
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223 if( gpCurrentWindow->Server )
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225 writef(gpCurrentWindow->Server->FD, "JOIN :%s\n", channel_name);
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228 else if( strcmp(command, "/quit") == 0 )
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230 char *quit_message = String + pos;
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233 if( quit_message == NULL || quit_message[0] == '\0' )
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234 quit_message = "/quit - Acess2 IRC Client";
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236 for( srv = gpServers; srv; srv = srv->Next )
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238 writef(srv->FD, "QUIT :%s\n", quit_message);
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243 else if( strcmp(command, "/window") == 0 || strcmp(command, "/win") == 0 || strcmp(command, "/w") == 0 )
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245 char *window_id = GetValue(String, &pos);
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246 int window_num = atoi(window_id);
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248 if( window_num > 0 )
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251 window_num --; // Move to base 0
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252 // Get `window_num`th window
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253 for( win = gpWindows; win && window_num--; win = win->Next );
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255 gpCurrentWindow = win;
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258 // Otherwise, silently ignore
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264 for( win = gpWindows; win; win = win->Next, window_num ++ )
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266 if( win->Name[0] ) {
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267 Message_AppendF(NULL, MSG_TYPE_SERVER, "client", "",
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268 "%i: %s/%s", window_num, win->Server->Name, win->Name);
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271 Message_AppendF(NULL, MSG_TYPE_SERVER, "client", "",
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272 "%i: (status)", window_num);
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279 Message_AppendF(NULL, MSG_TYPE_SERVER, "client", "", "Unknown command %s", command);
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285 // - Only send if server is valid and window name is non-empty
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286 if( gpCurrentWindow->Server && gpCurrentWindow->Name[0] )
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288 Message_Append(gpCurrentWindow->Server, MSG_TYPE_STANDARD,
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289 gsNickname, gpCurrentWindow->Name, String);
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290 writef(gpCurrentWindow->Server->FD,
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291 "PRIVMSG %s :%s\n", gpCurrentWindow->Name,
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301 * \brief Connect to a server
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303 tServer *Server_Connect(const char *Name, const char *AddressString, short PortNumber)
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307 ret = calloc(1, sizeof(tServer) + strlen(Name) + 1);
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309 strcpy(ret->Name, Name);
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311 // Connect to the remove server
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312 ret->FD = OpenTCP( AddressString, PortNumber );
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313 if( ret->FD == -1 ) {
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314 fprintf(stderr, "%s: Unable to create socket\n", Name);
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318 // Append to open list
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319 ret->Next = gpServers;
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322 // Read some initial data
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323 Message_Append(NULL, MSG_TYPE_SERVER, Name, "", "Connection opened");
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324 ProcessIncoming(ret);
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327 writef(ret->FD, "USER %s %s %s : %s\n", gsUsername, gsHostname, AddressString, gsRealName);
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328 writef(ret->FD, "NICK %s\n", gsNickname);
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329 Message_Append(NULL, MSG_TYPE_SERVER, Name, "", "Identified");
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330 //printf("%s: Identified\n", Name);
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335 tMessage *Message_AppendF(tServer *Server, int Type, const char *Source, const char *Dest, const char *Message, ...)
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339 va_start(args, Message);
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340 len = vsnprintf(NULL, 1000, Message, args);
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343 vsnprintf(buf, len+1, Message, args);
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344 return Message_Append(Server, Type, Source, Dest, buf);
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348 tMessage *Message_Append(tServer *Server, int Type, const char *Source, const char *Dest, const char *Message)
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351 tWindow *win = NULL;
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352 int msgLen = strlen(Message);
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354 // NULL servers are internal messages
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355 if( Server == NULL || Source[0] == '\0' )
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357 win = &gWindow_Status;
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359 // Determine if it's a channel or PM message
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360 else if( Dest[0] == '#' || Dest[0] == '&' ) // TODO: Better determining here
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362 tWindow *prev = NULL;
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363 for(win = gpWindows; win; prev = win, win = win->Next)
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365 if( win->Server == Server && strcmp(win->Name, Dest) == 0 )
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371 win = Window_Create(Server, Dest);
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375 else if( strcmp(Dest, Server->Nick) != 0 )
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377 // Umm... message for someone who isn't us?
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378 win = &gWindow_Status; // Stick it in the status window, just in case
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382 else if( strchr(Source, '.') ) // TODO: And again, less hack please
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385 for(win = gpWindows; win; win = win->Next)
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387 if( win->Server == Server && strcmp(win->Name, Source) == 0 )
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394 win = &gWindow_Status;
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401 for(win = gpWindows; win; win = win->Next)
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403 if( win->Server == Server && strcmp(win->Name, Source) == 0 )
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409 win = Window_Create(Server, Dest);
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413 ret = malloc( sizeof(tMessage) + msgLen + 1 + strlen(Source) + 1 );
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414 ret->Source = ret->Data + msgLen + 1;
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415 strcpy(ret->Source, Source);
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416 strcpy(ret->Data, Message);
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418 ret->Server = Server;
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420 // TODO: Append to window message list
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421 ret->Next = win->Messages;
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422 win->Messages = ret;
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424 //TODO: Set location
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427 int pos = SetCursorPos(giTerminal_Height-2, 0);
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428 if( win == gpCurrentWindow ) {
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429 int prefixlen = strlen(Source) + 3;
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430 int avail = giTerminal_Width - prefixlen;
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431 int msglen = strlen(Message);
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432 printf("\x1B[T"); // Scroll down 1 (free space below)
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433 printf("[%s] %.*s\n", Source, avail, Message);
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434 while( msglen > avail ) {
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438 SetCursorPos(giTerminal_Height-2, prefixlen);
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439 printf("%.*s\n", avail, Message);
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442 SetCursorPos(-1, pos);
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448 tWindow *Window_Create(tServer *Server, const char *Name)
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450 tWindow *ret, *prev = NULL;
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453 // Get the end of the list
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454 // TODO: Cache this instead
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455 for( ret = gpCurrentWindow; ret; prev = ret, ret = ret->Next )
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458 ret = malloc(sizeof(tWindow) + strlen(Name) + 1);
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459 ret->Messages = NULL;
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460 ret->Server = Server;
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461 ret->ActivityLevel = 1;
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462 strcpy(ret->Name, Name);
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465 ret->Next = prev->Next;
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468 else { // Shouldn't happen really
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469 ret->Next = gpWindows;
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473 // printf("Win %i %s:%s created\n", num, Server->Name, Name);
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478 void Redraw_Screen(void)
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483 printf("\x1B[2J"); // Clear screen
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484 printf("\x1B[0;0H"); // Reset cursor
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486 msg = gpCurrentWindow->Messages;
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488 // TODO: Title bar?
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490 // Note: This renders from the bottom up
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491 for( y = giTerminal_Height - 1; y -- && msg; msg = msg->Next)
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493 int msglen = strlen(msg->Data);
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494 int prefix_len = 3 + strlen(msg->Source);
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495 int line_avail = giTerminal_Width - prefix_len;
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496 int i = 0, done = 0;
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498 y -= msglen / line_avail; // Extra lines (y-- above handles the 1 line case)
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499 SetCursorPos(y, 0);
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500 printf("[%s] ", msg->Source);
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502 while(done < msglen) {
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503 done += printf("%.*s", line_avail, msg->Data+done);
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505 SetCursorPos(y+i, prefix_len);
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509 // Bottom line is rendered by the prompt
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512 void Cmd_PRIVMSG(tServer *Server, const char *Dest, const char *Src, const char *Message)
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514 Message_Append(Server, MSG_TYPE_STANDARD, Dest, Src, Message);
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515 //printf("<%s:%s:%s> %s\n", Server->Name, Dest, Src, Message);
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520 void ParseServerLine(tServer *Server, char *Line)
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525 _SysDebug("Server %s: Line = %s", Server->Name, Line);
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530 ident = GetValue(Line, &pos); // Ident (user or server)
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531 cmd = GetValue(Line, &pos);
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534 if( isdigit(cmd[0]) && isdigit(cmd[1]) && isdigit(cmd[2]) )
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536 char *user, *message;
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538 num = (cmd[0] - '0') * 100;
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539 num += (cmd[1] - '0') * 10;
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540 num += (cmd[2] - '0') * 1;
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542 user = GetValue(Line, &pos);
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544 if( Line[pos] == ':' ) {
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545 message = Line + pos + 1;
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548 message = GetValue(Line, &pos);
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553 case 353: // /NAMES list
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554 // <user> = <channel> :list
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555 // GetValue(Line, &pos); // '='
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556 user = GetValue(Line, &pos); // Actually channel
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557 message = Line + pos + 1; // List
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558 Message_AppendF(Server, MSG_TYPE_SERVER, user, "", "Names: %s", message);
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560 case 366: // end of /NAMES list
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561 // <user> <channel> :msg
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563 message = Line + pos + 1;
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564 Message_Append(Server, MSG_TYPE_SERVER, user, "", message);
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566 case 372: // MOTD Data
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567 case 376: // MOTD End
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570 //printf("[%s] %i %s\n", Server->Name, num, message);
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571 Message_Append(Server, MSG_TYPE_SERVER, ident, user, message);
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575 else if( strcmp(cmd, "NOTICE") == 0 )
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577 char *class, *message;
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579 class = GetValue(Line, &pos);
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581 if( Line[pos] == ':' ) {
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582 message = Line + pos + 1;
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585 message = GetValue(Line, &pos);
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588 //printf("[%s] NOTICE %s: %s\n", Server->Name, ident, message);
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589 Message_Append(Server, MSG_TYPE_NOTICE, ident, "", message);
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591 else if( strcmp(cmd, "PRIVMSG") == 0 )
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593 char *dest, *message;
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594 dest = GetValue(Line, &pos);
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596 if( Line[pos] == ':' ) {
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597 message = Line + pos + 1;
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600 message = GetValue(Line, &pos);
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602 // Cmd_PRIVMSG(Server, dest, ident, message);
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603 Message_Append(Server, MSG_TYPE_STANDARD, ident, dest, message);
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605 else if( strcmp(cmd, "JOIN" ) == 0 )
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608 channel = GetValue(Line, &pos) + 1;
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609 Window_Create(Server, channel);
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613 Message_AppendF(Server, MSG_TYPE_SERVER, "", "", "Unknown message %s (%s)\n", cmd, Line+pos);
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617 cmd = GetValue(Line, &pos);
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619 if( strcmp(cmd, "PING") == 0 ) {
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620 writef(Server->FD, "PONG %s\n", gsHostname);
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624 // Command to client
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625 Message_AppendF(NULL, MSG_TYPE_UNK, "", "", "Client Command: %s", Line);
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631 * \brief Process incoming lines from the server
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633 int ProcessIncoming(tServer *Server)
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635 char *ptr, *newline;
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638 // While there is data in the buffer, read it into user memory and
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639 // process it line by line
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640 // ioctl#8 on a TCP client gets the number of bytes in the recieve buffer
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641 // - Used to avoid blocking
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643 while( (len = ioctl(Server->FD, 8, NULL)) > 0 )
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647 len = read(Server->FD, &Server->InBuf[Server->ReadPos], BUFSIZ - Server->ReadPos);
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651 Server->InBuf[Server->ReadPos + len] = '\0';
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653 // Break into lines
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654 ptr = Server->InBuf;
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655 while( (newline = strchr(ptr, '\n')) )
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658 if( newline[-1] == '\r' ) newline[-1] = '\0';
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659 ParseServerLine(Server, ptr);
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663 // Handle incomplete lines
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664 if( ptr - Server->InBuf < len + Server->ReadPos ) {
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665 // Update the read position
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666 // InBuf ReadPos ptr ReadPos+len
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667 // | old | new used | new unused |
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668 Server->ReadPos = len + Server->ReadPos - (ptr - Server->InBuf);
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669 // Copy stuff back (moving "new unused" to the start of the buffer)
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670 memcpy(Server->InBuf, ptr, Server->ReadPos);
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673 Server->ReadPos = 0;
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683 * \brief Write a formatted string to a file descriptor
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686 int writef(int FD, const char *Format, ...)
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691 va_start(args, Format);
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692 len = vsnprintf(NULL, 1000, Format, args);
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697 va_start(args, Format);
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698 vsnprintf(buf, len+1, Format, args);
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701 return write(FD, buf, len);
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706 * \brief Initialise a TCP connection to \a AddressString on port \a PortNumber
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708 int OpenTCP(const char *AddressString, short PortNumber)
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712 char addrBuffer[8];
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714 // Parse IP Address
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715 addrType = Net_ParseAddress(AddressString, addrBuffer);
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716 if( addrType == 0 ) {
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717 fprintf(stderr, "Unable to parse '%s' as an IP address\n", AddressString);
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721 // Finds the interface for the destination address
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722 iface = Net_GetInterface(addrType, addrBuffer);
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723 if( iface == NULL ) {
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724 fprintf(stderr, "Unable to find a route to '%s'\n", AddressString);
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728 // printf("iface = '%s'\n", iface);
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730 // Open client socket
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731 // TODO: Move this out to libnet?
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733 int len = snprintf(NULL, 100, "/Devices/ip/%s/tcpc", iface);
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735 snprintf(path, 100, "/Devices/ip/%s/tcpc", iface);
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736 fd = open(path, OPENFLAG_READ|OPENFLAG_WRITE);
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742 fprintf(stderr, "Unable to open TCP Client for reading\n");
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746 // Set remote port and address
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747 // printf("Setting port and remote address\n");
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748 ioctl(fd, 5, &PortNumber);
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749 ioctl(fd, 6, addrBuffer);
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752 // printf("Initiating connection\n");
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753 if( ioctl(fd, 7, NULL) == 0 ) {
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754 // Shouldn't happen :(
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755 fprintf(stderr, "Unable to start connection\n");
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759 // Return descriptor
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764 * \brief Read a space-separated value from a string
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766 char *GetValue(char *Src, int *Ofs)
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769 char *ret = Src + pos;
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772 if( !Src ) return NULL;
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774 while( *ret == ' ' ) ret ++;
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776 end = strchr(ret, ' ');
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781 end = ret + strlen(ret) - 1;
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785 while( *ret == ' ' ) end ++;
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791 int SetCursorPos(int Row, int Col)
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795 Row = Col / giTerminal_Width;
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796 Col = Col % giTerminal_Width;
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798 rv = ioctl(1, 9, NULL); // Ugh, constants
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799 printf("\x1B[%i;%iH", Col, Row);
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803 static inline int isdigit(int ch)
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805 return '0' <= ch && ch < '9';
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