1 files changed, 0 insertions, 254 deletions
diff --git a/util/pka.c b/util/pka.c
deleted file mode 100644
index 3c9e5c437..000000000
--- a/util/pka.c
+++ /dev/null
@@ -1,254 +0,0 @@
-/* pka.c - DNS Public Key Association RR access
- * Copyright (C) 2005 Free Software Foundation, Inc.
- *
- * This file is part of GnuPG.
- *
- * GnuPG is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * GnuPG is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
- * USA.
- */
-
-#include <config.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#ifdef USE_DNS_PKA
-#include <sys/types.h>
-#ifdef _WIN32
-#include <windows.h>
-#else
-#include <netinet/in.h>
-#include <arpa/nameser.h>
-#include <resolv.h>
-#endif
-#endif /* USE_DNS_PKA */
-
-#include "memory.h"
-#include "types.h"
-#include "util.h"
-
-
-#ifdef USE_DNS_PKA
-/* Parse the TXT resource record. Format is:
-
-   v=pka1;fpr=a4d94e92b0986ab5ee9dcd755de249965b0358a2;uri=string
-   
-   For simplicity white spaces are not allowed.  Because we expect to
-   use a new RRTYPE for this in the future we define the TXT really
-   strict for simplicity: No white spaces, case sensitivity of the
-   names, order must be as given above.  Only URI is optional.
-
-   This function modifies BUFFER.  On success 0 is returned, the 20
-   byte fingerprint stored at FPR and BUFFER contains the URI or an
-   empty string.
-*/
-static int
-parse_txt_record (char *buffer, unsigned char *fpr)
-{
-  char *p, *pend;
-  int i;
-
-  p = buffer;
-  pend = strchr (p, ';');
-  if (!pend)
-    return -1;
-  *pend++ = 0;
-  if (strcmp (p, "v=pka1"))
-    return -1; /* Wrong or missing version. */
-  
-  p = pend;
-  pend = strchr (p, ';');
-  if (pend)
-    *pend++ = 0;
-  if (strncmp (p, "fpr=", 4))
-    return -1; /* Missing fingerprint part. */
-  p += 4;
-  for (i=0; i < 20 && hexdigitp (p) && hexdigitp (p+1); i++, p += 2)
-    fpr[i] = xtoi_2 (p);
-  if (i != 20)
-    return -1; /* Fingerprint consists not of exactly 40 hexbytes. */
-    
-  p = pend;
-  if (!p || !*p)
-    {
-      *buffer = 0;  
-      return 0; /* Success (no URI given). */
-    }
-  if (strncmp (p, "uri=", 4))
-    return -1; /* Unknown part. */
-  p += 4;
-  /* There is an URI, copy it to the start of the buffer. */
-  while (*p)
-    *buffer++ = *p++;
-  *buffer = 0;
-  return 0;
-}
-
-
-/* For the given email ADDRESS lookup the PKA information in the DNS.
-
-   On success the 20 byte SHA-1 fingerprint is stored at FPR and the
-   URI will be returned in an allocated buffer.  Note that the URI
-   might be an zero length string as this information is optiobnal.
-   Caller must xfree the returned string.
-
-   On error NULL is returned and the 20 bytes at FPR are not
-   defined. */
-char *
-get_pka_info (const char *address, unsigned char *fpr)
-{
-  unsigned char answer[PACKETSZ];
-  int anslen;
-  int qdcount, ancount, nscount, arcount;
-  int rc;
-  unsigned char *p, *pend;
-  const char *domain;
-  char *name;
-
-
-  domain = strrchr (address, '@');
-  if (!domain || domain == address || !domain[1])
-    return NULL; /* invalid mail address given. */
-
-  name = malloc (strlen (address) + 5 + 1);
-  memcpy (name, address, domain - address);
-  strcpy (stpcpy (name + (domain-address), "._pka."), domain+1);
-
-  anslen = res_query (name, C_IN, T_TXT, answer, PACKETSZ);
-  xfree (name);
-  if (anslen < sizeof(HEADER))
-    return NULL; /* DNS resolver returned a too short answer. */
-  if ( (rc=((HEADER*)answer)->rcode) != NOERROR )
-    return NULL; /* DNS resolver returned an error. */
-
-  /* We assume that PACKETSZ is large enough and don't do dynmically
-     expansion of the buffer. */
-  if (anslen > PACKETSZ)
-    return NULL; /* DNS resolver returned a too long answer */
-
-  qdcount = ntohs (((HEADER*)answer)->qdcount);
-  ancount = ntohs (((HEADER*)answer)->ancount);
-  nscount = ntohs (((HEADER*)answer)->nscount);
-  arcount = ntohs (((HEADER*)answer)->arcount);
-
-  if (!ancount)
-    return NULL; /* Got no answer. */
-
-  p = answer + sizeof (HEADER);
-  pend = answer + anslen; /* Actually points directly behind the buffer. */
-
-  while (qdcount-- && p < pend)
-    {
-      rc = dn_skipname (p, pend);
-      if (rc == -1)
-        return NULL;
-      p += rc + QFIXEDSZ; 
-    }
-
-  if (ancount > 1)
-    return NULL; /* more than one possible gpg trustdns record - none used. */
-
-  while (ancount-- && p <= pend)
-    {
-      unsigned int type, class, txtlen, n;
-      char *buffer, *bufp;
-
-      rc = dn_skipname (p, pend);
-      if (rc == -1)
-        return NULL;
-      p += rc;
-      if (p >= pend - 10)
-        return NULL; /* RR too short. */
-
-      type = *p++ << 8;
-      type |= *p++;
-      class = *p++ << 8;
-      class |= *p++;
-      p += 4;
-      txtlen = *p++ << 8;
-      txtlen |= *p++;
-      if (type != T_TXT || class != C_IN)
-        return NULL; /* Answer does not match the query. */
-
-      buffer = bufp = xmalloc (txtlen + 1);
-      while (txtlen && p < pend)
-        {
-          for (n = *p++, txtlen--; txtlen && n && p < pend; txtlen--, n--)
-            *bufp++ = *p++;
-        }
-      *bufp = 0;
-      if (parse_txt_record (buffer, fpr))
-        {
-          xfree (buffer);
-          return NULL; /* Not a valid gpg trustdns RR. */
-        }
-      return buffer;
-    }
-
-  return NULL;
-}
-#else /* !USE_DNS_PKA */
-
-/* Dummy version of the function if we can't use the resolver
-   functions. */
-char *
-get_pka_info (const char *address, unsigned char *fpr)
-{
-  return NULL;
-}
-#endif /* !USE_DNS_PKA */
-
-
-#ifdef TEST
-int
-main(int argc,char *argv[])
-{
-  unsigned char fpr[20];
-  char *uri;
-  int i;
-
-  if (argc < 2)
-    {
-      fprintf (stderr, "usage: pka mail-addresses\n");
-      return 1;
-    }
-  argc--;
-  argv++;
-
-  for (; argc; argc--, argv++)
-    {
-      uri = get_pka_info ( *argv, fpr );
-      printf ("%s", *argv);
-      if (uri)
-        {
-          putchar (' ');
-          for (i=0; i < 20; i++)
-            printf ("%02X", fpr[i]);
-          if (*uri)
-            printf (" %s", uri);
-          xfree (uri);
-        }
-      putchar ('\n');
-    }
-  return 0;
-}
-#endif /* TEST */
-
-/*
-Local Variables:
-compile-command: "cc -DUSE_DNS_PKA -DTEST -I.. -I../include -Wall -g -o pka pka.c -lresolv libutil.a"
-End:
-*/