1 /** 2 * @example vncev.c 3 * This program is a simple server to show events coming from the client 4 */ 5 #ifdef __STRICT_ANSI__ 6 #define _BSD_SOURCE 7 #endif 8 #include <stdio.h> 9 #include <stdlib.h> 10 #include <sys/types.h> 11 #ifndef __MINGW32__ 12 #include <sys/socket.h> 13 #endif 14 #include <rfb/rfb.h> 15 #include <rfb/default8x16.h> 16 17 #define width 100 18 #define height 100 19 static char f[width*height]; 20 static char* keys[0x400]; 21 22 static int hex2number(unsigned char c) 23 { 24 if(c>'f') return(-1); 25 else if(c>'F') 26 return(10+c-'a'); 27 else if(c>'9') 28 return(10+c-'A'); 29 else 30 return(c-'0'); 31 } 32 33 static void read_keys(void) 34 { 35 int i,j,k; 36 char buffer[1024]; 37 FILE* keysyms=fopen("keysym.h","r"); 38 39 memset(keys,0,0x400*sizeof(char*)); 40 41 if(!keysyms) 42 return; 43 44 while(!feof(keysyms)) { 45 fgets(buffer,1024,keysyms); 46 if(!strncmp(buffer,"#define XK_",strlen("#define XK_"))) { 47 for(i=strlen("#define XK_");buffer[i] && buffer[i]!=' ' 48 && buffer[i]!='\t';i++); 49 if(buffer[i]==0) /* don't support wrapped lines */ 50 continue; 51 buffer[i]=0; 52 for(i++;buffer[i] && buffer[i]!='0';i++); 53 if(buffer[i]==0 || buffer[i+1]!='x') continue; 54 for(j=0,i+=2;(k=hex2number(buffer[i]))>=0;i++) 55 j=j*16+k; 56 if(keys[j&0x3ff]) { 57 char* x=(char*)malloc(1+strlen(keys[j&0x3ff])+1+strlen(buffer+strlen("#define "))); 58 strcpy(x,keys[j&0x3ff]); 59 strcat(x,","); 60 strcat(x,buffer+strlen("#define ")); 61 free(keys[j&0x3ff]); 62 keys[j&0x3ff]=x; 63 } else 64 keys[j&0x3ff] = strdup(buffer+strlen("#define ")); 65 } 66 67 } 68 fclose(keysyms); 69 } 70 71 static int lineHeight=16,lineY=height-16; 72 static void output(rfbScreenInfoPtr s,char* line) 73 { 74 rfbDoCopyRect(s,0,0,width,height-lineHeight,0,-lineHeight); 75 rfbDrawString(s,&default8x16Font,10,lineY,line,0x01); 76 rfbLog("%s\n",line); 77 } 78 79 static void dokey(rfbBool down,rfbKeySym k,rfbClientPtr cl) 80 { 81 char buffer[1024+32]; 82 83 sprintf(buffer,"%s: %s (0x%x)", 84 down?"down":"up",keys[k&0x3ff]?keys[k&0x3ff]:"",(unsigned int)k); 85 output(cl->screen,buffer); 86 } 87 88 static void doptr(int buttonMask,int x,int y,rfbClientPtr cl) 89 { 90 char buffer[1024]; 91 if(buttonMask) { 92 sprintf(buffer,"Ptr: mouse button mask 0x%x at %d,%d",buttonMask,x,y); 93 output(cl->screen,buffer); 94 } 95 96 } 97 98 static enum rfbNewClientAction newclient(rfbClientPtr cl) 99 { 100 char buffer[1024]; 101 struct sockaddr_in addr; 102 socklen_t len=sizeof(addr); 103 unsigned int ip; 104 105 getpeername(cl->sock,(struct sockaddr*)&addr,&len); 106 ip=ntohl(addr.sin_addr.s_addr); 107 sprintf(buffer,"Client connected from ip %d.%d.%d.%d", 108 (ip>>24)&0xff,(ip>>16)&0xff,(ip>>8)&0xff,ip&0xff); 109 output(cl->screen,buffer); 110 return RFB_CLIENT_ACCEPT; 111 } 112 113 int main(int argc,char** argv) 114 { 115 rfbScreenInfoPtr s=rfbGetScreen(&argc,argv,width,height,8,1,1); 116 if(!s) 117 return 0; 118 s->colourMap.is16=FALSE; 119 s->colourMap.count=2; 120 s->colourMap.data.bytes=(unsigned char*)"\xd0\xd0\xd0\x30\x01\xe0"; 121 s->serverFormat.trueColour=FALSE; 122 s->frameBuffer=f; 123 s->kbdAddEvent=dokey; 124 s->ptrAddEvent=doptr; 125 s->newClientHook=newclient; 126 127 memset(f,0,width*height); 128 read_keys(); 129 rfbInitServer(s); 130 131 while(1) { 132 rfbProcessEvents(s,999999); 133 } 134 } 135
