qmail/qmail-1.03-bigdns.patch

   1 diff -u --new-file qmail-1.03-orig/dns.c qmail-1.03/dns.c
   2 --- qmail-1.03-orig/dns.c       2006-03-27 16:08:02.000000000 -0300
   3 +++ qmail-1.03/dns.c    2006-03-27 16:10:38.000000000 -0300
   4 @@ -21,10 +21,12 @@
   5  static unsigned short getshort(c) unsigned char *c;
   6  { unsigned short u; u = c[0]; return (u << 8) + c[1]; }
   7
   8 -static union { HEADER hdr; unsigned char buf[PACKETSZ]; } response;
   9 +static struct { unsigned char *buf; } response;
  10 +static int responsebuflen = 0;
  11  static int responselen;
  12  static unsigned char *responseend;
  13  static unsigned char *responsepos;
  14 +static u_long saveresoptions;
  15
  16  static int numanswers;
  17  static char name[MAXDNAME];
  18 @@ -45,18 +47,33 @@
  19   errno = 0;
  20   if (!stralloc_copy(&glue,domain)) return DNS_MEM;
  21   if (!stralloc_0(&glue)) return DNS_MEM;
  22 - responselen = lookup(glue.s,C_IN,type,response.buf,sizeof(response));
  23 + if (!responsebuflen)
  24 +  if (response.buf = (unsigned char *)alloc(PACKETSZ+1))
  25 +   responsebuflen = PACKETSZ+1;
  26 +  else return DNS_MEM;
  27 +
  28 + responselen = lookup(glue.s,C_IN,type,response.buf,responsebuflen);
  29 + if ((responselen >= responsebuflen) ||
  30 +     (responselen > 0 && (((HEADER *)response.buf)->tc)))
  31 +  {
  32 +   if (responsebuflen < 65536)
  33 +    if (alloc_re(&response.buf, responsebuflen, 65536))
  34 +     responsebuflen = 65536;
  35 +    else return DNS_MEM;
  36 +    saveresoptions = _res.options;
  37 +    _res.options |= RES_USEVC;
  38 +    responselen = lookup(glue.s,C_IN,type,response.buf,responsebuflen);
  39 +    _res.options = saveresoptions;
  40 +  }
  41   if (responselen <= 0)
  42    {
  43     if (errno == ECONNREFUSED) return DNS_SOFT;
  44     if (h_errno == TRY_AGAIN) return DNS_SOFT;
  45     return DNS_HARD;
  46    }
  47 - if (responselen >= sizeof(response))
  48 -   responselen = sizeof(response);
  49   responseend = response.buf + responselen;
  50   responsepos = response.buf + sizeof(HEADER);
  51 - n = ntohs(response.hdr.qdcount);
  52 + n = ntohs(((HEADER *)response.buf)->qdcount);
  53   while (n-- > 0)
  54    {
  55     i = dn_expand(response.buf,responseend,responsepos,name,MAXDNAME);
  56 @@ -66,7 +83,7 @@
  57     if (i < QFIXEDSZ) return DNS_SOFT;
  58     responsepos += QFIXEDSZ;
  59    }
  60 - numanswers = ntohs(response.hdr.ancount);
  61 + numanswers = ntohs(((HEADER *)response.buf)->ancount);
  62   return 0;
  63  }
  64
  65 Subdirectorios comunes: qmail-1.03-orig/qmail-rhinit y qmail-1.03/qmail-rhinit