src/server/command.c

   1 #include "command.h"
   2 #include "network.h"
   3 #include "widget.h"
   4 #include "event.h"
   5
   6 #include <stdio.h>
   7
   8 int check_parameters(unsigned char* command, int bytes, int correct_min, int correct_max)
   9 {
  10         if(bytes-1 < correct_min || bytes-1 > correct_max)
  11         {
  12                 int i;
  13
  14                 fprintf(stderr, "Incorrect protocol command:");
  15                 for(i=0; i<bytes; i++)
  16                         fprintf(stderr, " %02X", command[i]);
  17                 fprintf(stderr, "\n");
  18                 return 0;
  19         }
  20         else
  21                 return -1;
  22 }
  23
  24 int run_command(client_t* client, unsigned char* command, int bytes)
  25 {
  26         switch(command[0])
  27         {
  28                 case 0x0: // NOP
  29                         if(check_parameters(command, bytes, 0, 0))
  30                                 draw_update(client);
  31                         break;
  32
  33                 case 0x1: // draw pixel
  34                         if(check_parameters(command, bytes, 3, 3))
  35                                 draw_pixel(client, command[1], command[2], command[3]);
  36                         break;
  37
  38                 case 0x2: // draw line
  39                         if(check_parameters(command, bytes, 5, 5))
  40                                 draw_line(client, command[1], command[2], command[3], command[4], command[5]);
  41                         break;
  42
  43                 case 0x8: // draw rectangle
  44                         if(check_parameters(command, bytes, 5, 5))
  45                                 draw_rectangle(client, command[1], command[2], command[3], command[4], command[5]);
  46                         break;
  47
  48                 case 0x9: // draw box
  49                         if(check_parameters(command, bytes, 6, 6))
  50                                 draw_box(client, command[1], command[2], command[3], command[4], command[5], command[6]);
  51                         break;
  52
  53                 case 0x3: // move box
  54                         if(check_parameters(command, bytes, 7, 7))
  55                                 move_box(client, command[1], command[2], command[3], command[4], command[5], command[6], command[7]);
  56                         break;
  57
  58                 case 0x7: // set color
  59                         if(check_parameters(command, bytes, 4, 4))
  60                                 set_color(client, command[1], command[2], command[3], command[4]);
  61                         break;
  62
  63                 case 0x4: // write
  64                         command[bytes] = 0; // I don't know why
  65                         // printf("command -> %s\n", &command[4]);
  66                         if(check_parameters(command, bytes, 6, 100))
  67                                 write_text(client, command[1], command[2], command[3], command[4], &command[5]);
  68                         break;
  69
  70                 case 0x5: // new XPM
  71                         if(check_parameters(command, bytes, 3, 100000))
  72                                 new_pixmap(client, command[1], bytes - 2, &command[2]);
  73                         break;
  74
  75                 case 0x6: // draw image
  76                         if(check_parameters(command, bytes, 3, 3))
  77                                 draw_image(client, command[1], command[2], command[3]);
  78                         break;
  79
  80                 case 0x0A: // grab events
  81                         if(check_parameters(command, bytes, 5, 5))
  82                                 grab_events(client, command[1], command[2], command[3], command[4], command[5]);
  83                         break;
  84
  85                 case 0xA0: // draw 3D box (DEPRECATED)
  86                         if(check_parameters(command, bytes, 4, 4))
  87                                 draw_led_panel(client, command[1], command[2], command[3], command[4]);
  88                         break;
  89
  90                 case 0xA1: // draw 3D box
  91                         if(check_parameters(command, bytes, 5, 5))
  92                                 draw_panel(client, command[1], command[2], command[3], command[4], command[5]);
  93                         break;
  94
  95                 default:
  96                         check_parameters(command, bytes, 2, 1);
  97                         return 0;
  98         }
  99
 100         return 1;
 101 }