qlog.c

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#include "buffer.h"
#include "qlog.h"
#include "fmt.h"
#include "ip.h"
 
static void put(char c)
{
  buffer_put(buffer_2,&c,1);
}
 
static void puts(const char *s)
{
  buffer_puts(buffer_2,s);
}
 
static void hex(unsigned char c)
{
  put("0123456789abcdef"[(c >> 4) & 15]);
  put("0123456789abcdef"[c & 15]);
}
 
static void octal(unsigned char c)
{
  put('\\');
  put('0' + ((c >> 6) & 7));
  put('0' + ((c >> 3) & 7));
  put('0' + (c & 7));
}
 
void log_start(const char *s,const char ip[16],uint32 scope)
{
  char strnum[FMT_ULONG];
 
  strnum[fmt_ulong(strnum,scope)] = 0;
 
  puts(s);
  puts("listening on ip ");
  {
    int i;
    int j = ip6_isv4mapped(ip);
 
    for (i = 12 * j; i < 16; ++i) 
      hex(ip[i]);
 
    if (!j) { puts("%"); puts(strnum); }
    put('\n');
    buffer_flush(buffer_2);
  }
}
 
void qlog(const char ip[16],uint16 port,const char id[2],const char *q,const char qtype[2],const char *result)
{
  char ch;
  char ch2;
 
  {
    int i;
 
    for (i = 12 * ip6_isv4mapped(ip); i < 16; ++i) 
      hex(ip[i]);
  }
  put(':');
  hex(port >> 8);
  hex(port & 255);
  put(':');
  hex(id[0]);
  hex(id[1]);
  buffer_puts(buffer_2,result);
  hex(qtype[0]);
  hex(qtype[1]);
  put(' ');
 
  if (!*q)
    put('.');
  else
    for (;;) {
      ch = *q++;
      while (ch--) {
        ch2 = *q++;
        if ((ch2 >= 'A') && (ch2 <= 'Z'))
          ch2 += 32;
        if (((ch2 >= 'a') && (ch2 <= 'z')) || ((ch2 >= '0') && (ch2 <= '9')) || (ch2 == '-') || (ch2 == '_'))
          put(ch2);
        else
          octal(ch2);
      }
      if (!*q) break;
      put('.');
    }
 
  put('\n');
  buffer_flush(buffer_2);
}