qlog.c

   1 #include "buffer.h"
   2 #include "qlog.h"
   3
   4 static void put(char c)
   5 {
   6   buffer_put(buffer_2,&c,1);
   7 }
   8
   9 static void hex(unsigned char c)
  10 {
  11   put("0123456789abcdef"[(c >> 4) & 15]);
  12   put("0123456789abcdef"[c & 15]);
  13 }
  14
  15 static void octal(unsigned char c)
  16 {
  17   put('\\');
  18   put('0' + ((c >> 6) & 7));
  19   put('0' + ((c >> 3) & 7));
  20   put('0' + (c & 7));
  21 }
  22
  23 void qlog(const char ip[4],uint16 port,const char id[2],const char *q,const char qtype[2],const char *result)
  24 {
  25   char ch;
  26   char ch2;
  27
  28   hex(ip[0]);
  29   hex(ip[1]);
  30   hex(ip[2]);
  31   hex(ip[3]);
  32   put(':');
  33   hex(port >> 8);
  34   hex(port & 255);
  35   put(':');
  36   hex(id[0]);
  37   hex(id[1]);
  38   buffer_puts(buffer_2,result);
  39   hex(qtype[0]);
  40   hex(qtype[1]);
  41   put(' ');
  42
  43   if (!*q)
  44     put('.');
  45   else
  46     for (;;) {
  47       ch = *q++;
  48       while (ch--) {
  49         ch2 = *q++;
  50         if ((ch2 >= 'A') && (ch2 <= 'Z'))
  51           ch2 += 32;
  52         if (((ch2 >= 'a') && (ch2 <= 'z')) || ((ch2 >= '0') && (ch2 <= '9')) || (ch2 == '-') || (ch2 == '_'))
  53           put(ch2);
  54         else
  55           octal(ch2);
  56       }
  57       if (!*q) break;
  58       put('.');
  59     }
  60
  61   put('\n');
  62   buffer_flush(buffer_2);
  63 }