removed top level directory

1 files changed, 0 insertions, 201 deletions

diff --git a/sqmail-4.3.07/src/dns.c b/sqmail-4.3.07/src/dns.c
deleted file mode 100644
index 3f1154b..0000000
--- a/sqmail-4.3.07/src/dns.c
+++ /dev/null
@@ -1,201 +0,0 @@
-#include <netdb.h>
-#include <string.h>
-#include <sys/types.h>
-#include <netinet/in.h>
-#include <arpa/nameser.h>
-#include <sys/socket.h>
-#include "ip.h"
-#include "ipalloc.h"
-#include "fmt.h"
-#include "alloc.h"
-#include "str.h"
-#include "stralloc.h"
-#include "dnsresolv.h"
-#include "case.h"
-#include "dns.h"
-#include "buffer.h"
-#include "exit.h"
-
-/**
- @file dns.c
- @brief DNS helpers: dns_ipplus, dns_ipalloc, dns_ip (IPv4+IPv6), dns_mxip
- */
-
-static stralloc glue = {0};
-static stralloc ip = {0};
-
-static int dns_ipplus(ipalloc *ia,stralloc *sa,int pref)
-{
-  struct ip_mx ix;
-  int error = 0;
-  char ip4[4];
-  char ip6[16];
-  int i; 
-
-  /* Case 1: sa is just IPv4 */
-
-  if (ip4_scanbracket(sa->s,ip4)) {
-    if (!stralloc_copys(&glue,sa->s)) return DNS_MEM;
-    if (!stralloc_0(&glue)) return DNS_MEM;
-    if (glue.s[0]) {
-      ix.pref = 0;
-      ix.af = AF_INET;
-      byte_copy(&ix.addr,4,ip4); //  = ip; //cp
-      if (!ipalloc_append(ia,&ix)) return DNS_MEM;
-      return 0;
-    }
-  }
-
-  /* Case 2: sa is just IPv6 */
-
-  if (ip6_scanbracket(sa->s,ip6)) { 
-    if (!stralloc_copys(&glue,sa->s)) return DNS_MEM;
-    if (!stralloc_0(&glue)) return DNS_MEM;
-    if (glue.s[0]) {
-      ix.pref = 0;
-      ix.af = AF_INET6;
-      byte_copy(&ix.addr,16,ip6); //  = ip; //cp
-      if (!ipalloc_append(ia,&ix)) return DNS_MEM;
-      return 0;
-    }
-  }
-
-  /* Case 3: sa is fqdn and looking for IPv6 */
-
-  if (dns_ip6(&ip,sa) > 0) {
-    for (i = 0; i + 16 <= ip.len; i += 16) {
-      if (ip6_isv4mapped(ip.s + i)) continue;
-        ix.af = AF_INET6;
-        ix.pref = pref;
-        byte_copy(&ix.addr,16,ip.s + i); //  = ip; //cp
-        str_copy(ix.mxh,sa->s);          // mx hostname
-        if (!ipalloc_append(ia,&ix)) { error = DNS_MEM; break; }
-        error = 0;
-      }
-  } else
-    error = 1;
-
-  /* Case 4: sa is fqdn and looking for IPv4 */
-
-  if (dns_ip4(&ip,sa) > 0) {
-    for (i = 0; i + 4 <= ip.len; i += 4) {
-      ix.af = AF_INET;
-      ix.pref = pref;
-      byte_copy(&ix.addr,4,ip.s + i); //  = ip; //cp
-      str_copy(ix.mxh,sa->s);         // mx hostname
-      if (!ipalloc_append(ia,&ix)) { error = DNS_MEM; break; }
-      error = 0;
-    }
-  } else
-    error += 2; 
-
-  return error;
-}
-
-int dns_ipalloc(ipalloc *ia,stralloc *sa)
-{
-  if (!ipalloc_readyplus(ia,0)) return DNS_MEM;
-  ia->len = 0;
-
-  return dns_ipplus(ia,sa,0);
-}
-
-/* dns_mxip */
-
-int dns_mxip(ipalloc *ia,stralloc *sa,unsigned long random) {
-  struct mx { stralloc sa; unsigned short p; } *mx;
-  struct ip_mx ix;
-  int nummx;
-  int i;
-  int j = 0;
-  int len;
-  int flagsoft;
-  uint16 pref;
-
-  /* Case 1: sa is just IPv4 or IPv6 */
-
-  if (!ipalloc_readyplus(ia,0)) return DNS_MEM;
-  ia->len = 0;
-
-  if (!stralloc_copys(&glue,sa->s)) return DNS_MEM;
-  if (!stralloc_0(&glue)) return DNS_MEM;
-  if (glue.s[0]) {
-    ix.pref = 0;
-    if (!glue.s[ip4_scan(glue.s,(char *)&ix.addr.ip4)] || \
-        !glue.s[ip4_scanbracket(glue.s,(char *)&ix.addr.ip4)]) {
-      ix.af = AF_INET;
-      if (!ipalloc_append(ia,&ix)) return DNS_MEM;
-      return 0;
-    }
-    if (!glue.s[ip6_scan(glue.s,(char *)&ix.addr.ip6)] || \
-        !glue.s[ip6_scanbracket(glue.s,(char *)&ix.addr.ip6)]) {
-      ix.af = AF_INET6;
-      if (!ipalloc_append(ia,&ix)) return DNS_MEM;
-      return 0;
-    }
-  }
-
-  /* Case 2:  sa is FQDN and do a mx lookup */
-
-  DNS_INIT
-  nummx = 0;
-  len = 0;
-  i = dns_mx(&ip,sa);
-  mx = (struct mx *) alloc(i * sizeof(struct mx));
-  if (!mx) return DNS_MEM;
-
-  if (i) {
-    do {
-      j = str_chr(ip.s + len + 2,'\0');  /* several answers */
-      mx[nummx].sa.s = 0;
-      if (!stralloc_copys(&mx[nummx].sa,ip.s + len + 2)) { /* mxhost name */
-        alloc_free(mx); return DNS_MEM;
-      }
-      ip.s[len + 3] = '\0';
-      uint16_unpack_big(ip.s + len,&pref);
-      mx[nummx].p = pref;
-      len += j + 3;
-      ++nummx;
-    } while (len < ip.len);
-  }
-
-  if (!nummx) return dns_ipalloc(ia,sa); /* e.g., CNAME -> A */
-  flagsoft = 0;
-
-  while (nummx > 0) {
-    unsigned long numsame;
-    i = 0;
-    numsame = 1;
-    for (j = 1; j < nummx; ++j) {
-      if (mx[j].p < mx[i].p) {
-        i = j;
-        numsame = 1;
-      }
-      else if (mx[j].p == mx[i].p) {
-        ++numsame;
-        random = random * 69069 + 1;
-        if ((random / 2) < (2147483647 / numsame)) i = j;
-      }
-    }
-
-    switch (dns_ipplus(ia,&mx[i].sa,mx[i].p)) {
-      case -1: return DNS_MEM;
-      case -2: case -3: flagsoft = -5; break;
-    }
-
-    alloc_free(mx[i].sa.s);
-    mx[i] = mx[--nummx];
-  }
-
-  alloc_free(mx);
-  return flagsoft;
-}
-
-int dns_ip(ipalloc *ia,stralloc *sa)
-{
-
-  if (!ipalloc_readyplus(ia,0)) return DNS_MEM;
-  ia->len = 0;
-
-  return dns_ipplus(ia,sa,0);
-}