git.maemo.org Git - presencevnc/blob - libvnc/examples/vncev.c

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